-/*
- * 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, 2013, Intel Corporation.
- */
-/*
- * lustre/mdd/mdd_lfsck.c
- *
- * Top-level entry points into mdd module
- *
- * LFSCK controller, which scans the whole device through low layer
- * iteration APIs, drives all lfsck compeonents, controls the speed.
- *
- * Author: Fan Yong <yong.fan@whamcloud.com>
- */
-
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
-#define DEBUG_SUBSYSTEM S_MDS
-
-#include <lustre/lustre_idl.h>
-#include <lustre_fid.h>
-#include <obd_support.h>
-
-#include "mdd_internal.h"
-#include "mdd_lfsck.h"
-
-#define HALF_SEC (CFS_HZ >> 1)
-#define LFSCK_CHECKPOINT_INTERVAL 60
-
-#define LFSCK_NAMEENTRY_DEAD 1 /* The object has been unlinked. */
-#define LFSCK_NAMEENTRY_REMOVED 2 /* The entry has been removed. */
-#define LFSCK_NAMEENTRY_RECREATED 3 /* The entry has been recreated. */
-
-const char lfsck_bookmark_name[] = "lfsck_bookmark";
-const char lfsck_namespace_name[] = "lfsck_namespace";
-
-static const char *lfsck_status_names[] = {
- "init",
- "scanning-phase1",
- "scanning-phase2",
- "completed",
- "failed",
- "stopped",
- "paused",
- "crashed",
- NULL
-};
-
-static const char *lfsck_flags_names[] = {
- "scanned-once",
- "inconsistent",
- "upgrade",
- NULL
-};
-
-static const char *lfsck_param_names[] = {
- "failout",
- "dryrun",
- NULL
-};
-
-/* misc functions */
-
-static inline struct mdd_device *mdd_lfsck2mdd(struct md_lfsck *lfsck)
-{
- return container_of0(lfsck, struct mdd_device, mdd_lfsck);
-}
-
-static inline char *mdd_lfsck2name(struct md_lfsck *lfsck)
-{
- struct mdd_device *mdd = mdd_lfsck2mdd(lfsck);
-
- return mdd2obd_dev(mdd)->obd_name;
-}
-
-static inline void mdd_lfsck_component_get(struct lfsck_component *com)
-{
- atomic_inc(&com->lc_ref);
-}
-
-static inline void mdd_lfsck_component_put(const struct lu_env *env,
- struct lfsck_component *com)
-{
- if (atomic_dec_and_test(&com->lc_ref)) {
- if (com->lc_obj != NULL)
- lu_object_put(env, &com->lc_obj->do_lu);
- if (com->lc_file_ram != NULL)
- OBD_FREE(com->lc_file_ram, com->lc_file_size);
- if (com->lc_file_disk != NULL)
- OBD_FREE(com->lc_file_disk, com->lc_file_size);
- OBD_FREE_PTR(com);
- }
-}
-
-static inline struct lfsck_component *
-__mdd_lfsck_component_find(struct md_lfsck *lfsck, __u16 type, cfs_list_t *list)
-{
- struct lfsck_component *com;
-
- cfs_list_for_each_entry(com, list, lc_link) {
- if (com->lc_type == type)
- return com;
- }
- return NULL;
-}
-
-static struct lfsck_component *
-mdd_lfsck_component_find(struct md_lfsck *lfsck, __u16 type)
-{
- struct lfsck_component *com;
-
- spin_lock(&lfsck->ml_lock);
- com = __mdd_lfsck_component_find(lfsck, type, &lfsck->ml_list_scan);
- if (com != NULL)
- goto unlock;
-
- com = __mdd_lfsck_component_find(lfsck, type,
- &lfsck->ml_list_double_scan);
- if (com != NULL)
- goto unlock;
-
- com = __mdd_lfsck_component_find(lfsck, type, &lfsck->ml_list_idle);
-
-unlock:
- if (com != NULL)
- mdd_lfsck_component_get(com);
- spin_unlock(&lfsck->ml_lock);
- return com;
-}
-
-static void mdd_lfsck_component_cleanup(const struct lu_env *env,
- struct lfsck_component *com)
-{
- if (!cfs_list_empty(&com->lc_link))
- cfs_list_del_init(&com->lc_link);
- if (!cfs_list_empty(&com->lc_link_dir))
- cfs_list_del_init(&com->lc_link_dir);
-
- mdd_lfsck_component_put(env, com);
-}
-
-static int lfsck_bits_dump(char **buf, int *len, int bits, const char *names[],
- const char *prefix)
-{
- int save = *len;
- int flag;
- int rc;
- int i;
-
- rc = snprintf(*buf, *len, "%s:%c", prefix, bits != 0 ? ' ' : '\n');
- if (rc <= 0)
- return -ENOSPC;
-
- *buf += rc;
- *len -= rc;
- for (i = 0, flag = 1; bits != 0; i++, flag = 1 << i) {
- if (flag & bits) {
- bits &= ~flag;
- rc = snprintf(*buf, *len, "%s%c", names[i],
- bits != 0 ? ',' : '\n');
- if (rc <= 0)
- return -ENOSPC;
-
- *buf += rc;
- *len -= rc;
- }
- }
- return save - *len;
-}
-
-static int lfsck_time_dump(char **buf, int *len, __u64 time, const char *prefix)
-{
- int rc;
-
- if (time != 0)
- rc = snprintf(*buf, *len, "%s: "LPU64" seconds\n", prefix,
- cfs_time_current_sec() - time);
- else
- rc = snprintf(*buf, *len, "%s: N/A\n", prefix);
- if (rc <= 0)
- return -ENOSPC;
-
- *buf += rc;
- *len -= rc;
- return rc;
-}
-
-static int lfsck_pos_dump(char **buf, int *len, struct lfsck_position *pos,
- const char *prefix)
-{
- int rc;
-
- if (fid_is_zero(&pos->lp_dir_parent)) {
- if (pos->lp_oit_cookie == 0)
- rc = snprintf(*buf, *len, "%s: N/A, N/A, N/A\n",
- prefix);
- else
- rc = snprintf(*buf, *len, "%s: "LPU64", N/A, N/A\n",
- prefix, pos->lp_oit_cookie);
- } else {
- rc = snprintf(*buf, *len, "%s: "LPU64", "DFID", "LPU64"\n",
- prefix, pos->lp_oit_cookie,
- PFID(&pos->lp_dir_parent), pos->lp_dir_cookie);
- }
- if (rc <= 0)
- return -ENOSPC;
-
- *buf += rc;
- *len -= rc;
- return rc;
-}
-
-static void mdd_lfsck_pos_fill(const struct lu_env *env, struct md_lfsck *lfsck,
- struct lfsck_position *pos, bool init)
-{
- const struct dt_it_ops *iops = &lfsck->ml_obj_oit->do_index_ops->dio_it;
-
- spin_lock(&lfsck->ml_lock);
- if (unlikely(lfsck->ml_di_oit == NULL)) {
- spin_unlock(&lfsck->ml_lock);
- memset(pos, 0, sizeof(*pos));
- return;
- }
-
- pos->lp_oit_cookie = iops->store(env, lfsck->ml_di_oit);
- if (!lfsck->ml_current_oit_processed && !init)
- pos->lp_oit_cookie--;
-
- LASSERT(pos->lp_oit_cookie > 0);
-
- if (lfsck->ml_di_dir != NULL) {
- struct dt_object *dto = lfsck->ml_obj_dir;
-
- pos->lp_dir_cookie = dto->do_index_ops->dio_it.store(env,
- lfsck->ml_di_dir);
-
- if (pos->lp_dir_cookie >= MDS_DIR_END_OFF) {
- fid_zero(&pos->lp_dir_parent);
- pos->lp_dir_cookie = 0;
- } else {
- pos->lp_dir_parent = *lu_object_fid(&dto->do_lu);
- }
- } else {
- fid_zero(&pos->lp_dir_parent);
- pos->lp_dir_cookie = 0;
- }
- spin_unlock(&lfsck->ml_lock);
-}
-
-static inline void mdd_lfsck_pos_set_zero(struct lfsck_position *pos)
-{
- memset(pos, 0, sizeof(*pos));
-}
-
-static inline int mdd_lfsck_pos_is_zero(const struct lfsck_position *pos)
-{
- return pos->lp_oit_cookie == 0 && fid_is_zero(&pos->lp_dir_parent);
-}
-
-static inline int mdd_lfsck_pos_is_eq(const struct lfsck_position *pos1,
- const struct lfsck_position *pos2)
-{
- if (pos1->lp_oit_cookie < pos2->lp_oit_cookie)
- return -1;
-
- if (pos1->lp_oit_cookie > pos2->lp_oit_cookie)
- return 1;
-
- if (fid_is_zero(&pos1->lp_dir_parent) &&
- !fid_is_zero(&pos2->lp_dir_parent))
- return -1;
-
- if (!fid_is_zero(&pos1->lp_dir_parent) &&
- fid_is_zero(&pos2->lp_dir_parent))
- return 1;
-
- if (fid_is_zero(&pos1->lp_dir_parent) &&
- fid_is_zero(&pos2->lp_dir_parent))
- return 0;
-
- LASSERT(lu_fid_eq(&pos1->lp_dir_parent, &pos2->lp_dir_parent));
-
- if (pos1->lp_dir_cookie < pos2->lp_dir_cookie)
- return -1;
-
- if (pos1->lp_dir_cookie > pos2->lp_dir_cookie)
- return 1;
-
- return 0;
-}
-
-static void mdd_lfsck_close_dir(const struct lu_env *env,
- struct md_lfsck *lfsck)
-{
- struct dt_object *dir_obj = lfsck->ml_obj_dir;
- const struct dt_it_ops *dir_iops = &dir_obj->do_index_ops->dio_it;
- struct dt_it *dir_di = lfsck->ml_di_dir;
-
- spin_lock(&lfsck->ml_lock);
- lfsck->ml_di_dir = NULL;
- spin_unlock(&lfsck->ml_lock);
-
- dir_iops->put(env, dir_di);
- dir_iops->fini(env, dir_di);
- lfsck->ml_obj_dir = NULL;
- lu_object_put(env, &dir_obj->do_lu);
-}
-
-static void __mdd_lfsck_set_speed(struct md_lfsck *lfsck, __u32 limit)
-{
- lfsck->ml_bookmark_ram.lb_speed_limit = limit;
- if (limit != LFSCK_SPEED_NO_LIMIT) {
- if (limit > CFS_HZ) {
- lfsck->ml_sleep_rate = limit / CFS_HZ;
- lfsck->ml_sleep_jif = 1;
- } else {
- lfsck->ml_sleep_rate = 1;
- lfsck->ml_sleep_jif = CFS_HZ / limit;
- }
- } else {
- lfsck->ml_sleep_jif = 0;
- lfsck->ml_sleep_rate = 0;
- }
-}
-
-static void mdd_lfsck_control_speed(struct md_lfsck *lfsck)
-{
- struct ptlrpc_thread *thread = &lfsck->ml_thread;
- struct l_wait_info lwi;
-
- if (lfsck->ml_sleep_jif > 0 &&
- lfsck->ml_new_scanned >= lfsck->ml_sleep_rate) {
- spin_lock(&lfsck->ml_lock);
- if (likely(lfsck->ml_sleep_jif > 0 &&
- lfsck->ml_new_scanned >= lfsck->ml_sleep_rate)) {
- lwi = LWI_TIMEOUT_INTR(lfsck->ml_sleep_jif, NULL,
- LWI_ON_SIGNAL_NOOP, NULL);
- spin_unlock(&lfsck->ml_lock);
-
- l_wait_event(thread->t_ctl_waitq,
- !thread_is_running(thread),
- &lwi);
- lfsck->ml_new_scanned = 0;
- } else {
- spin_unlock(&lfsck->ml_lock);
- }
- }
-}
-
-/* lfsck_bookmark file ops */
-
-static void inline mdd_lfsck_bookmark_to_cpu(struct lfsck_bookmark *des,
- struct lfsck_bookmark *src)
-{
- des->lb_magic = le32_to_cpu(src->lb_magic);
- des->lb_version = le16_to_cpu(src->lb_version);
- des->lb_param = le16_to_cpu(src->lb_param);
- des->lb_speed_limit = le32_to_cpu(src->lb_speed_limit);
-}
-
-static void inline mdd_lfsck_bookmark_to_le(struct lfsck_bookmark *des,
- struct lfsck_bookmark *src)
-{
- des->lb_magic = cpu_to_le32(src->lb_magic);
- des->lb_version = cpu_to_le16(src->lb_version);
- des->lb_param = cpu_to_le16(src->lb_param);
- des->lb_speed_limit = cpu_to_le32(src->lb_speed_limit);
-}
-
-static int mdd_lfsck_bookmark_load(const struct lu_env *env,
- struct md_lfsck *lfsck)
-{
- loff_t pos = 0;
- int len = sizeof(struct lfsck_bookmark);
- int rc;
-
- rc = dt_record_read(env, lfsck->ml_bookmark_obj,
- mdd_buf_get(env, &lfsck->ml_bookmark_disk, len),
- &pos);
- if (rc == 0) {
- struct lfsck_bookmark *bm = &lfsck->ml_bookmark_ram;
-
- mdd_lfsck_bookmark_to_cpu(bm, &lfsck->ml_bookmark_disk);
- if (bm->lb_magic != LFSCK_BOOKMARK_MAGIC) {
- CWARN("%.16s: invalid lfsck_bookmark magic "
- "0x%x != 0x%x\n", mdd_lfsck2name(lfsck),
- bm->lb_magic, LFSCK_BOOKMARK_MAGIC);
- /* Process it as new lfsck_bookmark. */
- rc = -ENODATA;
- }
- } else {
- if (rc == -EFAULT && pos == 0)
- /* return -ENODATA for empty lfsck_bookmark. */
- rc = -ENODATA;
- else
- CERROR("%.16s: fail to load lfsck_bookmark, "
- "expected = %d, rc = %d\n",
- mdd_lfsck2name(lfsck), len, rc);
- }
- return rc;
-}
-
-static int mdd_lfsck_bookmark_store(const struct lu_env *env,
- struct md_lfsck *lfsck)
-{
- struct mdd_device *mdd = mdd_lfsck2mdd(lfsck);
- struct thandle *handle;
- struct dt_object *obj = lfsck->ml_bookmark_obj;
- loff_t pos = 0;
- int len = sizeof(struct lfsck_bookmark);
- int rc;
- ENTRY;
-
- mdd_lfsck_bookmark_to_le(&lfsck->ml_bookmark_disk,
- &lfsck->ml_bookmark_ram);
- handle = dt_trans_create(env, mdd->mdd_bottom);
- if (IS_ERR(handle)) {
- rc = PTR_ERR(handle);
- CERROR("%.16s: fail to create trans for storing "
- "lfsck_bookmark: %d\n,", mdd_lfsck2name(lfsck), rc);
- RETURN(rc);
- }
-
- rc = dt_declare_record_write(env, obj, len, 0, handle);
- if (rc != 0) {
- CERROR("%.16s: fail to declare trans for storing "
- "lfsck_bookmark: %d\n,", mdd_lfsck2name(lfsck), rc);
- GOTO(out, rc);
- }
-
- rc = dt_trans_start_local(env, mdd->mdd_bottom, handle);
- if (rc != 0) {
- CERROR("%.16s: fail to start trans for storing "
- "lfsck_bookmark: %d\n,", mdd_lfsck2name(lfsck), rc);
- GOTO(out, rc);
- }
-
- rc = dt_record_write(env, obj,
- mdd_buf_get(env, &lfsck->ml_bookmark_disk, len),
- &pos, handle);
- if (rc != 0)
- CERROR("%.16s: fail to store lfsck_bookmark, expected = %d, "
- "rc = %d\n", mdd_lfsck2name(lfsck), len, rc);
-
- GOTO(out, rc);
-
-out:
- dt_trans_stop(env, mdd->mdd_bottom, handle);
- return rc;
-}
-
-static int mdd_lfsck_bookmark_init(const struct lu_env *env,
- struct md_lfsck *lfsck)
-{
- struct lfsck_bookmark *mb = &lfsck->ml_bookmark_ram;
- int rc;
-
- memset(mb, 0, sizeof(*mb));
- mb->lb_magic = LFSCK_BOOKMARK_MAGIC;
- mb->lb_version = LFSCK_VERSION_V2;
- mutex_lock(&lfsck->ml_mutex);
- rc = mdd_lfsck_bookmark_store(env, lfsck);
- mutex_unlock(&lfsck->ml_mutex);
- return rc;
-}
-
-/* lfsck_namespace file ops */
-
-static void inline mdd_lfsck_position_to_cpu(struct lfsck_position *des,
- struct lfsck_position *src)
-{
- des->lp_oit_cookie = le64_to_cpu(src->lp_oit_cookie);
- fid_le_to_cpu(&des->lp_dir_parent, &src->lp_dir_parent);
- des->lp_dir_cookie = le64_to_cpu(src->lp_dir_cookie);
-}
-
-static void inline mdd_lfsck_position_to_le(struct lfsck_position *des,
- struct lfsck_position *src)
-{
- des->lp_oit_cookie = cpu_to_le64(src->lp_oit_cookie);
- fid_cpu_to_le(&des->lp_dir_parent, &src->lp_dir_parent);
- des->lp_dir_cookie = cpu_to_le64(src->lp_dir_cookie);
-}
-
-static void inline mdd_lfsck_namespace_to_cpu(struct lfsck_namespace *des,
- struct lfsck_namespace *src)
-{
- des->ln_magic = le32_to_cpu(src->ln_magic);
- des->ln_status = le32_to_cpu(src->ln_status);
- des->ln_flags = le32_to_cpu(src->ln_flags);
- des->ln_success_count = le32_to_cpu(src->ln_success_count);
- des->ln_run_time_phase1 = le32_to_cpu(src->ln_run_time_phase1);
- des->ln_run_time_phase2 = le32_to_cpu(src->ln_run_time_phase2);
- des->ln_time_last_complete = le64_to_cpu(src->ln_time_last_complete);
- des->ln_time_latest_start = le64_to_cpu(src->ln_time_latest_start);
- des->ln_time_last_checkpoint =
- le64_to_cpu(src->ln_time_last_checkpoint);
- mdd_lfsck_position_to_cpu(&des->ln_pos_latest_start,
- &src->ln_pos_latest_start);
- mdd_lfsck_position_to_cpu(&des->ln_pos_last_checkpoint,
- &src->ln_pos_last_checkpoint);
- mdd_lfsck_position_to_cpu(&des->ln_pos_first_inconsistent,
- &src->ln_pos_first_inconsistent);
- des->ln_items_checked = le64_to_cpu(src->ln_items_checked);
- des->ln_items_repaired = le64_to_cpu(src->ln_items_repaired);
- des->ln_items_failed = le64_to_cpu(src->ln_items_failed);
- des->ln_dirs_checked = le64_to_cpu(src->ln_dirs_checked);
- des->ln_mlinked_checked = le64_to_cpu(src->ln_mlinked_checked);
- des->ln_objs_checked_phase2 = le64_to_cpu(src->ln_objs_checked_phase2);
- des->ln_objs_repaired_phase2 =
- le64_to_cpu(src->ln_objs_repaired_phase2);
- des->ln_objs_failed_phase2 = le64_to_cpu(src->ln_objs_failed_phase2);
- des->ln_objs_nlink_repaired = le64_to_cpu(src->ln_objs_nlink_repaired);
- des->ln_objs_lost_found = le64_to_cpu(src->ln_objs_lost_found);
- fid_le_to_cpu(&des->ln_fid_latest_scanned_phase2,
- &src->ln_fid_latest_scanned_phase2);
-}
-
-static void inline mdd_lfsck_namespace_to_le(struct lfsck_namespace *des,
- struct lfsck_namespace *src)
-{
- des->ln_magic = cpu_to_le32(src->ln_magic);
- des->ln_status = cpu_to_le32(src->ln_status);
- des->ln_flags = cpu_to_le32(src->ln_flags);
- des->ln_success_count = cpu_to_le32(src->ln_success_count);
- des->ln_run_time_phase1 = cpu_to_le32(src->ln_run_time_phase1);
- des->ln_run_time_phase2 = cpu_to_le32(src->ln_run_time_phase2);
- des->ln_time_last_complete = cpu_to_le64(src->ln_time_last_complete);
- des->ln_time_latest_start = cpu_to_le64(src->ln_time_latest_start);
- des->ln_time_last_checkpoint =
- cpu_to_le64(src->ln_time_last_checkpoint);
- mdd_lfsck_position_to_le(&des->ln_pos_latest_start,
- &src->ln_pos_latest_start);
- mdd_lfsck_position_to_le(&des->ln_pos_last_checkpoint,
- &src->ln_pos_last_checkpoint);
- mdd_lfsck_position_to_le(&des->ln_pos_first_inconsistent,
- &src->ln_pos_first_inconsistent);
- des->ln_items_checked = cpu_to_le64(src->ln_items_checked);
- des->ln_items_repaired = cpu_to_le64(src->ln_items_repaired);
- des->ln_items_failed = cpu_to_le64(src->ln_items_failed);
- des->ln_dirs_checked = cpu_to_le64(src->ln_dirs_checked);
- des->ln_mlinked_checked = cpu_to_le64(src->ln_mlinked_checked);
- des->ln_objs_checked_phase2 = cpu_to_le64(src->ln_objs_checked_phase2);
- des->ln_objs_repaired_phase2 =
- cpu_to_le64(src->ln_objs_repaired_phase2);
- des->ln_objs_failed_phase2 = cpu_to_le64(src->ln_objs_failed_phase2);
- des->ln_objs_nlink_repaired = cpu_to_le64(src->ln_objs_nlink_repaired);
- des->ln_objs_lost_found = cpu_to_le64(src->ln_objs_lost_found);
- fid_cpu_to_le(&des->ln_fid_latest_scanned_phase2,
- &src->ln_fid_latest_scanned_phase2);
-}
-
-/**
- * \retval +ve: the lfsck_namespace is broken, the caller should reset it.
- * \retval 0: succeed.
- * \retval -ve: failed cases.
- */
-static int mdd_lfsck_namespace_load(const struct lu_env *env,
- struct lfsck_component *com)
-{
- int len = com->lc_file_size;
- int rc;
-
- rc = dt_xattr_get(env, com->lc_obj,
- mdd_buf_get(env, com->lc_file_disk, len),
- XATTR_NAME_LFSCK_NAMESPACE, BYPASS_CAPA);
- if (rc == len) {
- struct lfsck_namespace *ns = com->lc_file_ram;
-
- mdd_lfsck_namespace_to_cpu(ns,
- (struct lfsck_namespace *)com->lc_file_disk);
- if (ns->ln_magic != LFSCK_NAMESPACE_MAGIC) {
- CWARN("%.16s: invalid lfsck_namespace magic "
- "0x%x != 0x%x\n",
- mdd_lfsck2name(com->lc_lfsck),
- ns->ln_magic, LFSCK_NAMESPACE_MAGIC);
- rc = 1;
- } else {
- rc = 0;
- }
- } else if (rc != -ENODATA) {
- CERROR("%.16s: fail to load lfsck_namespace, expected = %d, "
- "rc = %d\n", mdd_lfsck2name(com->lc_lfsck), len, rc);
- if (rc >= 0)
- rc = 1;
- }
- return rc;
-}
-
-static int mdd_lfsck_namespace_store(const struct lu_env *env,
- struct lfsck_component *com, bool init)
-{
- struct dt_object *obj = com->lc_obj;
- struct md_lfsck *lfsck = com->lc_lfsck;
- struct mdd_device *mdd = mdd_lfsck2mdd(lfsck);
- struct thandle *handle;
- int len = com->lc_file_size;
- int rc;
- ENTRY;
-
- mdd_lfsck_namespace_to_le((struct lfsck_namespace *)com->lc_file_disk,
- (struct lfsck_namespace *)com->lc_file_ram);
- handle = dt_trans_create(env, mdd->mdd_bottom);
- if (IS_ERR(handle)) {
- rc = PTR_ERR(handle);
- CERROR("%.16s: fail to create trans for storing "
- "lfsck_namespace: %d\n,", mdd_lfsck2name(lfsck), rc);
- RETURN(rc);
- }
-
- rc = dt_declare_xattr_set(env, obj,
- mdd_buf_get(env, com->lc_file_disk, len),
- XATTR_NAME_LFSCK_NAMESPACE, 0, handle);
- if (rc != 0) {
- CERROR("%.16s: fail to declare trans for storing "
- "lfsck_namespace: %d\n,", mdd_lfsck2name(lfsck), rc);
- GOTO(out, rc);
- }
-
- rc = dt_trans_start_local(env, mdd->mdd_bottom, handle);
- if (rc != 0) {
- CERROR("%.16s: fail to start trans for storing "
- "lfsck_namespace: %d\n,", mdd_lfsck2name(lfsck), rc);
- GOTO(out, rc);
- }
-
- rc = dt_xattr_set(env, obj,
- mdd_buf_get(env, com->lc_file_disk, len),
- XATTR_NAME_LFSCK_NAMESPACE,
- init ? LU_XATTR_CREATE : LU_XATTR_REPLACE,
- handle, BYPASS_CAPA);
- if (rc != 0)
- CERROR("%.16s: fail to store lfsck_namespace, len = %d, "
- "rc = %d\n", mdd_lfsck2name(lfsck), len, rc);
-
- GOTO(out, rc);
-
-out:
- dt_trans_stop(env, mdd->mdd_bottom, handle);
- return rc;
-}
-
-static int mdd_lfsck_namespace_init(const struct lu_env *env,
- struct lfsck_component *com)
-{
- struct lfsck_namespace *ns = (struct lfsck_namespace *)com->lc_file_ram;
- int rc;
-
- memset(ns, 0, sizeof(*ns));
- ns->ln_magic = LFSCK_NAMESPACE_MAGIC;
- ns->ln_status = LS_INIT;
- down_write(&com->lc_sem);
- rc = mdd_lfsck_namespace_store(env, com, true);
- up_write(&com->lc_sem);
- return rc;
-}
-
-static int mdd_lfsck_namespace_lookup(const struct lu_env *env,
- struct lfsck_component *com,
- const struct lu_fid *fid,
- __u8 *flags)
-{
- struct lu_fid *key = &mdd_env_info(env)->mti_fid;
- int rc;
-
- fid_cpu_to_be(key, fid);
- rc = dt_lookup(env, com->lc_obj, (struct dt_rec *)flags,
- (const struct dt_key *)key, BYPASS_CAPA);
- return rc;
-}
-
-static int mdd_lfsck_namespace_delete(const struct lu_env *env,
- struct lfsck_component *com,
- const struct lu_fid *fid)
-{
- struct mdd_device *mdd = mdd_lfsck2mdd(com->lc_lfsck);
- struct lu_fid *key = &mdd_env_info(env)->mti_fid;
- struct thandle *handle;
- struct dt_object *obj = com->lc_obj;
- int rc;
- ENTRY;
-
- handle = dt_trans_create(env, mdd->mdd_bottom);
- if (IS_ERR(handle))
- RETURN(PTR_ERR(handle));
-
- rc = dt_declare_delete(env, obj, (const struct dt_key *)fid, handle);
- if (rc != 0)
- GOTO(out, rc);
-
- rc = dt_trans_start_local(env, mdd->mdd_bottom, handle);
- if (rc != 0)
- GOTO(out, rc);
-
- fid_cpu_to_be(key, fid);
- rc = dt_delete(env, obj, (const struct dt_key *)key, handle,
- BYPASS_CAPA);
-
- GOTO(out, rc);
-
-out:
- dt_trans_stop(env, mdd->mdd_bottom, handle);
- return rc;
-}
-
-static int mdd_lfsck_namespace_update(const struct lu_env *env,
- struct lfsck_component *com,
- const struct lu_fid *fid,
- __u8 flags, bool force)
-{
- struct mdd_device *mdd = mdd_lfsck2mdd(com->lc_lfsck);
- struct lu_fid *key = &mdd_env_info(env)->mti_fid;
- struct thandle *handle;
- struct dt_object *obj = com->lc_obj;
- int rc;
- bool exist = false;
- __u8 tf;
- ENTRY;
-
- rc = mdd_lfsck_namespace_lookup(env, com, fid, &tf);
- if (rc != 0 && rc != -ENOENT)
- RETURN(rc);
-
- if (rc == 0) {
- if (!force || flags == tf)
- RETURN(0);
-
- exist = true;
- handle = dt_trans_create(env, mdd->mdd_bottom);
- if (IS_ERR(handle))
- RETURN(PTR_ERR(handle));
-
- rc = dt_declare_delete(env, obj, (const struct dt_key *)fid,
- handle);
- if (rc != 0)
- GOTO(out, rc);
- } else {
- handle = dt_trans_create(env, mdd->mdd_bottom);
- if (IS_ERR(handle))
- RETURN(PTR_ERR(handle));
- }
-
- rc = dt_declare_insert(env, obj, (const struct dt_rec *)&flags,
- (const struct dt_key *)fid, handle);
- if (rc != 0)
- GOTO(out, rc);
-
- rc = dt_trans_start_local(env, mdd->mdd_bottom, handle);
- if (rc != 0)
- GOTO(out, rc);
-
- fid_cpu_to_be(key, fid);
- if (exist) {
- rc = dt_delete(env, obj, (const struct dt_key *)key, handle,
- BYPASS_CAPA);
- if (rc != 0) {
- CERROR("%s: fail to insert "DFID", rc = %d\n",
- mdd_lfsck2name(com->lc_lfsck), PFID(fid), rc);
- GOTO(out, rc);
- }
- }
-
- rc = dt_insert(env, obj, (const struct dt_rec *)&flags,
- (const struct dt_key *)key, handle, BYPASS_CAPA, 1);
-
- GOTO(out, rc);
-
-out:
- dt_trans_stop(env, mdd->mdd_bottom, handle);
- return rc;
-}
-
-/**
- * \retval +ve repaired
- * \retval 0 no need to repair
- * \retval -ve error cases
- */
-static int mdd_lfsck_namespace_double_scan_one(const struct lu_env *env,
- struct lfsck_component *com,
- struct mdd_object *child,
- __u8 flags)
-{
- struct mdd_thread_info *info = mdd_env_info(env);
- struct lu_attr *la = &info->mti_la;
- struct lu_name *cname = &info->mti_name;
- struct lu_fid *pfid = &info->mti_fid;
- struct lu_fid *cfid = &info->mti_fid2;
- struct md_lfsck *lfsck = com->lc_lfsck;
- struct mdd_device *mdd = mdd_lfsck2mdd(lfsck);
- struct lfsck_bookmark *bk = &lfsck->ml_bookmark_ram;
- struct lfsck_namespace *ns =
- (struct lfsck_namespace *)com->lc_file_ram;
- struct linkea_data ldata = { 0 };
- struct thandle *handle = NULL;
- bool locked = false;
- bool update = false;
- int count;
- int rc;
- ENTRY;
-
- if (com->lc_journal) {
-
-again:
- LASSERT(!locked);
-
- com->lc_journal = 1;
- handle = mdd_trans_create(env, mdd);
- if (IS_ERR(handle))
- RETURN(rc = PTR_ERR(handle));
-
- rc = mdd_declare_links_add(env, child, handle, NULL);
- if (rc != 0)
- GOTO(stop, rc);
-
- rc = mdd_trans_start(env, mdd, handle);
- if (rc != 0)
- GOTO(stop, rc);
-
- mdd_write_lock(env, child, MOR_TGT_CHILD);
- locked = true;
- }
-
- if (unlikely(mdd_is_dead_obj(child)))
- GOTO(stop, rc = 0);
-
- rc = mdd_links_read(env, child, &ldata);
- if (rc != 0) {
- if ((bk->lb_param & LPF_DRYRUN) &&
- (rc == -EINVAL || rc == -ENODATA))
- rc = 1;
-
- GOTO(stop, rc);
- }
-
- rc = mdd_la_get(env, child, la, BYPASS_CAPA);
- if (rc != 0)
- GOTO(stop, rc);
-
- ldata.ld_lee = LINKEA_FIRST_ENTRY(ldata);
- count = ldata.ld_leh->leh_reccount;
- while (count-- > 0) {
- struct mdd_object *parent = NULL;
- struct dt_object *dir;
-
- linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen, cname,
- pfid);
- if (!fid_is_sane(pfid))
- goto shrink;
-
- parent = mdd_object_find(env, mdd, pfid);
- if (parent == NULL)
- goto shrink;
- else if (IS_ERR(parent))
- GOTO(stop, rc = PTR_ERR(parent));
-
- if (!mdd_object_exists(parent))
- goto shrink;
-
- /* XXX: Currently, skip remote object, the consistency for
- * remote object will be processed in LFSCK phase III. */
- if (mdd_object_remote(parent)) {
- mdd_object_put(env, parent);
- ldata.ld_lee = LINKEA_NEXT_ENTRY(ldata);
- continue;
- }
-
- dir = mdd_object_child(parent);
- if (unlikely(!dt_try_as_dir(env, dir)))
- goto shrink;
-
- /* To guarantee the 'name' is terminated with '0'. */
- memcpy(info->mti_key, cname->ln_name, cname->ln_namelen);
- info->mti_key[cname->ln_namelen] = 0;
- cname->ln_name = info->mti_key;
- rc = dt_lookup(env, dir, (struct dt_rec *)cfid,
- (const struct dt_key *)cname->ln_name,
- BYPASS_CAPA);
- if (rc != 0 && rc != -ENOENT) {
- mdd_object_put(env, parent);
- GOTO(stop, rc);
- }
-
- if (rc == 0) {
- if (lu_fid_eq(cfid, mdo2fid(child))) {
- mdd_object_put(env, parent);
- ldata.ld_lee = LINKEA_NEXT_ENTRY(ldata);
- continue;
- }
-
- goto shrink;
- }
-
- if (ldata.ld_leh->leh_reccount > la->la_nlink)
- goto shrink;
-
- /* XXX: For the case of there is linkea entry, but without name
- * entry pointing to the object, and the object link count
- * isn't less than the count of name entries, then add the
- * name entry back to namespace.
- *
- * It is out of LFSCK 1.5 scope, will implement it in the
- * future. Keep the linkEA entry. */
- mdd_object_put(env, parent);
- ldata.ld_lee = LINKEA_NEXT_ENTRY(ldata);
- continue;
-
-shrink:
- if (parent != NULL)
- mdd_object_put(env, parent);
- if (bk->lb_param & LPF_DRYRUN)
- RETURN(1);
-
- CDEBUG(D_LFSCK, "Remove linkEA: "DFID"[%.*s], "DFID"\n",
- PFID(mdo2fid(child)), cname->ln_namelen, cname->ln_name,
- PFID(pfid));
- linkea_del_buf(&ldata, cname);
- update = true;
- }
-
- if (update) {
- if (!com->lc_journal) {
- com->lc_journal = 1;
- goto again;
- }
-
- rc = mdd_links_write(env, child, &ldata, handle);
- }
-
- GOTO(stop, rc);
-
-stop:
- if (locked)
- mdd_write_unlock(env, child);
-
- if (handle != NULL)
- mdd_trans_stop(env, mdd, rc, handle);
-
- if (rc == 0 && update) {
- ns->ln_objs_nlink_repaired++;
- rc = 1;
- }
- return rc;
-}
-
-/* namespace APIs */
-
-static int mdd_lfsck_namespace_reset(const struct lu_env *env,
- struct lfsck_component *com, bool init)
-{
- struct lfsck_namespace *ns = (struct lfsck_namespace *)com->lc_file_ram;
- struct mdd_device *mdd = mdd_lfsck2mdd(com->lc_lfsck);
- struct dt_object *dto, *root;
- int rc;
- ENTRY;
-
- down_write(&com->lc_sem);
- if (init) {
- memset(ns, 0, sizeof(*ns));
- } else {
- __u32 count = ns->ln_success_count;
- __u64 last_time = ns->ln_time_last_complete;
-
- memset(ns, 0, sizeof(*ns));
- ns->ln_success_count = count;
- ns->ln_time_last_complete = last_time;
- }
- ns->ln_magic = LFSCK_NAMESPACE_MAGIC;
- ns->ln_status = LS_INIT;
-
- root = dt_locate(env, mdd->mdd_bottom, &mdd->mdd_local_root_fid);
- if (unlikely(IS_ERR(root)))
- GOTO(out, rc = PTR_ERR(root));
-
- rc = local_object_unlink(env, mdd->mdd_bottom, root,
- lfsck_namespace_name);
- if (rc != 0)
- GOTO(out, rc);
-
- dto = local_index_find_or_create(env, mdd->mdd_los, root,
- lfsck_namespace_name,
- S_IFREG | S_IRUGO | S_IWUSR,
- &dt_lfsck_features);
- if (IS_ERR(dto))
- GOTO(out, rc = PTR_ERR(dto));
-
- rc = dto->do_ops->do_index_try(env, dto, &dt_lfsck_features);
- if (rc != 0)
- GOTO(out, rc);
- com->lc_obj = dto;
-
- rc = mdd_lfsck_namespace_store(env, com, true);
-
- GOTO(out, rc);
-out:
- lu_object_put(env, &root->do_lu);
- up_write(&com->lc_sem);
- return rc;
-}
-
-static void
-mdd_lfsck_namespace_fail(const struct lu_env *env, struct lfsck_component *com,
- bool new_checked)
-{
- struct lfsck_namespace *ns = (struct lfsck_namespace *)com->lc_file_ram;
-
- down_write(&com->lc_sem);
- if (new_checked)
- com->lc_new_checked++;
- ns->ln_items_failed++;
- if (mdd_lfsck_pos_is_zero(&ns->ln_pos_first_inconsistent))
- mdd_lfsck_pos_fill(env, com->lc_lfsck,
- &ns->ln_pos_first_inconsistent, false);
- up_write(&com->lc_sem);
-}
-
-static int mdd_lfsck_namespace_checkpoint(const struct lu_env *env,
- struct lfsck_component *com,
- bool init)
-{
- struct md_lfsck *lfsck = com->lc_lfsck;
- struct lfsck_namespace *ns =
- (struct lfsck_namespace *)com->lc_file_ram;
- int rc;
-
- if (com->lc_new_checked == 0 && !init)
- return 0;
-
- down_write(&com->lc_sem);
-
- if (init) {
- ns->ln_pos_latest_start = lfsck->ml_pos_current;
- } else {
- ns->ln_pos_last_checkpoint = lfsck->ml_pos_current;
- ns->ln_run_time_phase1 += cfs_duration_sec(cfs_time_current() +
- HALF_SEC - lfsck->ml_time_last_checkpoint);
- ns->ln_time_last_checkpoint = cfs_time_current_sec();
- ns->ln_items_checked += com->lc_new_checked;
- com->lc_new_checked = 0;
- }
-
- rc = mdd_lfsck_namespace_store(env, com, false);
-
- up_write(&com->lc_sem);
- return rc;
-}
-
-static int mdd_lfsck_namespace_prep(const struct lu_env *env,
- struct lfsck_component *com)
-{
- struct md_lfsck *lfsck = com->lc_lfsck;
- struct lfsck_namespace *ns =
- (struct lfsck_namespace *)com->lc_file_ram;
- struct lfsck_position *pos = &com->lc_pos_start;
-
- if (ns->ln_status == LS_COMPLETED) {
- int rc;
-
- rc = mdd_lfsck_namespace_reset(env, com, false);
- if (rc != 0)
- return rc;
- }
-
- down_write(&com->lc_sem);
-
- ns->ln_time_latest_start = cfs_time_current_sec();
-
- spin_lock(&lfsck->ml_lock);
- if (ns->ln_flags & LF_SCANNED_ONCE) {
- if (!lfsck->ml_drop_dryrun ||
- mdd_lfsck_pos_is_zero(&ns->ln_pos_first_inconsistent)) {
- ns->ln_status = LS_SCANNING_PHASE2;
- cfs_list_del_init(&com->lc_link);
- cfs_list_add_tail(&com->lc_link,
- &lfsck->ml_list_double_scan);
- if (!cfs_list_empty(&com->lc_link_dir))
- cfs_list_del_init(&com->lc_link_dir);
- mdd_lfsck_pos_set_zero(pos);
- } else {
- ns->ln_status = LS_SCANNING_PHASE1;
- ns->ln_run_time_phase1 = 0;
- ns->ln_run_time_phase2 = 0;
- ns->ln_items_checked = 0;
- ns->ln_items_repaired = 0;
- ns->ln_items_failed = 0;
- ns->ln_dirs_checked = 0;
- ns->ln_mlinked_checked = 0;
- ns->ln_objs_checked_phase2 = 0;
- ns->ln_objs_repaired_phase2 = 0;
- ns->ln_objs_failed_phase2 = 0;
- ns->ln_objs_nlink_repaired = 0;
- ns->ln_objs_lost_found = 0;
- fid_zero(&ns->ln_fid_latest_scanned_phase2);
- if (cfs_list_empty(&com->lc_link_dir))
- cfs_list_add_tail(&com->lc_link_dir,
- &lfsck->ml_list_dir);
- *pos = ns->ln_pos_first_inconsistent;
- }
- } else {
- ns->ln_status = LS_SCANNING_PHASE1;
- if (cfs_list_empty(&com->lc_link_dir))
- cfs_list_add_tail(&com->lc_link_dir,
- &lfsck->ml_list_dir);
- if (!lfsck->ml_drop_dryrun ||
- mdd_lfsck_pos_is_zero(&ns->ln_pos_first_inconsistent)) {
- *pos = ns->ln_pos_last_checkpoint;
- pos->lp_oit_cookie++;
- } else {
- *pos = ns->ln_pos_first_inconsistent;
- }
- }
- spin_unlock(&lfsck->ml_lock);
-
- up_write(&com->lc_sem);
- return 0;
-}
-
-static int mdd_lfsck_namespace_exec_oit(const struct lu_env *env,
- struct lfsck_component *com,
- struct mdd_object *obj)
-{
- down_write(&com->lc_sem);
- com->lc_new_checked++;
- if (S_ISDIR(mdd_object_type(obj)))
- ((struct lfsck_namespace *)com->lc_file_ram)->ln_dirs_checked++;
- up_write(&com->lc_sem);
- return 0;
-}
-
-static int mdd_declare_lfsck_namespace_exec_dir(const struct lu_env *env,
- struct mdd_object *obj,
- struct thandle *handle)
-{
- int rc;
-
- /* For destroying all invalid linkEA entries. */
- rc = mdo_declare_xattr_del(env, obj, XATTR_NAME_LINK, handle);
- if (rc != 0)
- return rc;
-
- /* For insert new linkEA entry. */
- rc = mdd_declare_links_add(env, obj, handle, NULL);
- return rc;
-}
-
-static int mdd_lfsck_namespace_check_exist(const struct lu_env *env,
- struct md_lfsck *lfsck,
- struct mdd_object *obj,
- const char *name)
-{
- struct dt_object *dir = lfsck->ml_obj_dir;
- struct lu_fid *fid = &mdd_env_info(env)->mti_fid;
- int rc;
- ENTRY;
-
- if (unlikely(mdd_is_dead_obj(obj)))
- RETURN(LFSCK_NAMEENTRY_DEAD);
-
- rc = dt_lookup(env, dir, (struct dt_rec *)fid,
- (const struct dt_key *)name, BYPASS_CAPA);
- if (rc == -ENOENT)
- RETURN(LFSCK_NAMEENTRY_REMOVED);
-
- if (rc < 0)
- RETURN(rc);
-
- if (!lu_fid_eq(fid, mdo2fid(obj)))
- RETURN(LFSCK_NAMEENTRY_RECREATED);
-
- RETURN(0);
-}
-
-static int mdd_lfsck_namespace_exec_dir(const struct lu_env *env,
- struct lfsck_component *com,
- struct mdd_object *obj,
- struct lu_dirent *ent)
-{
- struct mdd_thread_info *info = mdd_env_info(env);
- struct lu_attr *la = &info->mti_la;
- struct md_lfsck *lfsck = com->lc_lfsck;
- struct lfsck_bookmark *bk = &lfsck->ml_bookmark_ram;
- struct lfsck_namespace *ns =
- (struct lfsck_namespace *)com->lc_file_ram;
- struct mdd_device *mdd = mdd_lfsck2mdd(lfsck);
- struct linkea_data ldata = { 0 };
- const struct lu_fid *pfid =
- lu_object_fid(&lfsck->ml_obj_dir->do_lu);
- const struct lu_fid *cfid = mdo2fid(obj);
- const struct lu_name *cname;
- struct thandle *handle = NULL;
- bool repaired = false;
- bool locked = false;
- int count = 0;
- int rc;
- ENTRY;
-
- cname = mdd_name_get_const(env, ent->lde_name, ent->lde_namelen);
- down_write(&com->lc_sem);
- com->lc_new_checked++;
-
- if (ent->lde_attrs & LUDA_UPGRADE) {
- ns->ln_flags |= LF_UPGRADE;
- repaired = true;
- } else if (ent->lde_attrs & LUDA_REPAIR) {
- ns->ln_flags |= LF_INCONSISTENT;
- repaired = true;
- }
-
- if (ent->lde_name[0] == '.' &&
- (ent->lde_namelen == 1 ||
- (ent->lde_namelen == 2 && ent->lde_name[1] == '.') ||
- fid_is_dot_lustre(&ent->lde_fid)))
- GOTO(out, rc = 0);
-
- if (!(bk->lb_param & LPF_DRYRUN) &&
- (com->lc_journal || repaired)) {
-
-again:
- LASSERT(!locked);
-
- com->lc_journal = 1;
- handle = mdd_trans_create(env, mdd);
- if (IS_ERR(handle))
- GOTO(out, rc = PTR_ERR(handle));
-
- rc = mdd_declare_lfsck_namespace_exec_dir(env, obj, handle);
- if (rc != 0)
- GOTO(stop, rc);
-
- rc = mdd_trans_start(env, mdd, handle);
- if (rc != 0)
- GOTO(stop, rc);
-
- mdd_write_lock(env, obj, MOR_TGT_CHILD);
- locked = true;
- }
-
- rc = mdd_lfsck_namespace_check_exist(env, lfsck, obj, ent->lde_name);
- if (rc != 0)
- GOTO(stop, rc);
-
- rc = mdd_links_read(env, obj, &ldata);
- if (rc == 0) {
- count = ldata.ld_leh->leh_reccount;
- rc = linkea_links_find(&ldata, cname, pfid);
- if (rc == 0) {
- /* For dir, if there are more than one linkea entries,
- * then remove all the other redundant linkea entries.*/
- if (unlikely(count > 1 &&
- S_ISDIR(mdd_object_type(obj))))
- goto unmatch;
-
- goto record;
- } else {
-
-unmatch:
- ns->ln_flags |= LF_INCONSISTENT;
- if (bk->lb_param & LPF_DRYRUN) {
- repaired = true;
- goto record;
- }
-
- /*For dir, remove the unmatched linkea entry directly.*/
- if (S_ISDIR(mdd_object_type(obj))) {
- if (!com->lc_journal)
- goto again;
-
- rc = mdo_xattr_del(env, obj, XATTR_NAME_LINK,
- handle, BYPASS_CAPA);
- if (rc != 0)
- GOTO(stop, rc);
-
- goto nodata;
- } else {
- goto add;
- }
- }
- } else if (unlikely(rc == -EINVAL)) {
- ns->ln_flags |= LF_INCONSISTENT;
- if (bk->lb_param & LPF_DRYRUN) {
- count = 1;
- repaired = true;
- goto record;
- }
-
- if (!com->lc_journal)
- goto again;
-
- /* The magic crashed, we are not sure whether there are more
- * corrupt data in the linkea, so remove all linkea entries. */
- rc = mdo_xattr_del(env, obj, XATTR_NAME_LINK, handle,
- BYPASS_CAPA);
- if (rc != 0)
- GOTO(stop, rc);
-
- goto nodata;
- } else if (rc == -ENODATA) {
- ns->ln_flags |= LF_UPGRADE;
- if (bk->lb_param & LPF_DRYRUN) {
- count = 1;
- repaired = true;
- goto record;
- }
-
-nodata:
- rc = linkea_data_new(&ldata, &mdd_env_info(env)->mti_link_buf);
- if (rc != 0)
- GOTO(stop, rc);
-
-add:
- if (!com->lc_journal)
- goto again;
-
- rc = linkea_add_buf(&ldata, cname, pfid);
- if (rc != 0)
- GOTO(stop, rc);
-
- rc = mdd_links_write(env, obj, &ldata, handle);
- if (rc != 0)
- GOTO(stop, rc);
-
- count = ldata.ld_leh->leh_reccount;
- repaired = true;
- } else {
- GOTO(stop, rc);
- }
-
-record:
- LASSERT(count > 0);
-
- rc = mdd_la_get(env, obj, la, BYPASS_CAPA);
- if (rc != 0)
- GOTO(stop, rc);
-
- if ((count == 1) &&
- (la->la_nlink == 1 || S_ISDIR(mdd_object_type(obj))))
- /* Usually, it is for single linked object or dir, do nothing.*/
- GOTO(stop, rc);
-
- /* Following modification will be in another transaction. */
- if (handle != NULL) {
- LASSERT(mdd_write_locked(env, obj));
-
- mdd_write_unlock(env, obj);
- locked = false;
-
- mdd_trans_stop(env, mdd, 0, handle);
- handle = NULL;
- }
-
- ns->ln_mlinked_checked++;
- rc = mdd_lfsck_namespace_update(env, com, cfid,
- count != la->la_nlink ? LLF_UNMATCH_NLINKS : 0, false);
-
- GOTO(out, rc);
-
-stop:
- if (locked)
- mdd_write_unlock(env, obj);
-
- if (handle != NULL)
- mdd_trans_stop(env, mdd, rc, handle);
-
-out:
- if (rc < 0) {
- ns->ln_items_failed++;
- if (mdd_lfsck_pos_is_zero(&ns->ln_pos_first_inconsistent))
- mdd_lfsck_pos_fill(env, lfsck,
- &ns->ln_pos_first_inconsistent,
- false);
- if (!(bk->lb_param & LPF_FAILOUT))
- rc = 0;
- } else {
- if (repaired)
- ns->ln_items_repaired++;
- else
- com->lc_journal = 0;
- rc = 0;
- }
- up_write(&com->lc_sem);
- return rc;
-}
-
-static int mdd_lfsck_namespace_post(const struct lu_env *env,
- struct lfsck_component *com,
- int result, bool init)
-{
- struct md_lfsck *lfsck = com->lc_lfsck;
- struct lfsck_namespace *ns =
- (struct lfsck_namespace *)com->lc_file_ram;
- int rc;
-
- down_write(&com->lc_sem);
-
- spin_lock(&lfsck->ml_lock);
- if (!init)
- ns->ln_pos_last_checkpoint = lfsck->ml_pos_current;
- if (result > 0) {
- ns->ln_status = LS_SCANNING_PHASE2;
- ns->ln_flags |= LF_SCANNED_ONCE;
- ns->ln_flags &= ~LF_UPGRADE;
- cfs_list_del_init(&com->lc_link);
- cfs_list_del_init(&com->lc_link_dir);
- cfs_list_add_tail(&com->lc_link, &lfsck->ml_list_double_scan);
- } else if (result == 0) {
- if (lfsck->ml_paused) {
- ns->ln_status = LS_PAUSED;
- } else {
- ns->ln_status = LS_STOPPED;
- cfs_list_del_init(&com->lc_link);
- cfs_list_del_init(&com->lc_link_dir);
- cfs_list_add_tail(&com->lc_link, &lfsck->ml_list_idle);
- }
- } else {
- ns->ln_status = LS_FAILED;
- cfs_list_del_init(&com->lc_link);
- cfs_list_del_init(&com->lc_link_dir);
- cfs_list_add_tail(&com->lc_link, &lfsck->ml_list_idle);
- }
- spin_unlock(&lfsck->ml_lock);
-
- if (!init) {
- ns->ln_run_time_phase1 += cfs_duration_sec(cfs_time_current() +
- HALF_SEC - lfsck->ml_time_last_checkpoint);
- ns->ln_time_last_checkpoint = cfs_time_current_sec();
- ns->ln_items_checked += com->lc_new_checked;
- com->lc_new_checked = 0;
- }
-
- rc = mdd_lfsck_namespace_store(env, com, false);
-
- up_write(&com->lc_sem);
- return rc;
-}
-
-static int
-mdd_lfsck_namespace_dump(const struct lu_env *env, struct lfsck_component *com,
- char *buf, int len)
-{
- struct md_lfsck *lfsck = com->lc_lfsck;
- struct lfsck_bookmark *bk = &lfsck->ml_bookmark_ram;
- struct lfsck_namespace *ns =
- (struct lfsck_namespace *)com->lc_file_ram;
- int save = len;
- int ret = -ENOSPC;
- int rc;
-
- down_read(&com->lc_sem);
- rc = snprintf(buf, len,
- "name: lfsck_namespace\n"
- "magic: 0x%x\n"
- "version: %d\n"
- "status: %s\n",
- ns->ln_magic,
- bk->lb_version,
- lfsck_status_names[ns->ln_status]);
- if (rc <= 0)
- goto out;
-
- buf += rc;
- len -= rc;
- rc = lfsck_bits_dump(&buf, &len, ns->ln_flags, lfsck_flags_names,
- "flags");
- if (rc < 0)
- goto out;
-
- rc = lfsck_bits_dump(&buf, &len, bk->lb_param, lfsck_param_names,
- "param");
- if (rc < 0)
- goto out;
-
- rc = lfsck_time_dump(&buf, &len, ns->ln_time_last_complete,
- "time_since_last_completed");
- if (rc < 0)
- goto out;
-
- rc = lfsck_time_dump(&buf, &len, ns->ln_time_latest_start,
- "time_since_latest_start");
- if (rc < 0)
- goto out;
-
- rc = lfsck_time_dump(&buf, &len, ns->ln_time_last_checkpoint,
- "time_since_last_checkpoint");
- if (rc < 0)
- goto out;
-
- rc = lfsck_pos_dump(&buf, &len, &ns->ln_pos_latest_start,
- "latest_start_position");
- if (rc < 0)
- goto out;
-
- rc = lfsck_pos_dump(&buf, &len, &ns->ln_pos_last_checkpoint,
- "last_checkpoint_position");
- if (rc < 0)
- goto out;
-
- rc = lfsck_pos_dump(&buf, &len, &ns->ln_pos_first_inconsistent,
- "first_failure_position");
- if (rc < 0)
- goto out;
-
- if (ns->ln_status == LS_SCANNING_PHASE1) {
- struct lfsck_position pos;
- cfs_duration_t duration = cfs_time_current() -
- lfsck->ml_time_last_checkpoint;
- __u64 checked = ns->ln_items_checked + com->lc_new_checked;
- __u64 speed = checked;
- __u64 new_checked = com->lc_new_checked * CFS_HZ;
- __u32 rtime = ns->ln_run_time_phase1 +
- cfs_duration_sec(duration + HALF_SEC);
-
- if (duration != 0)
- do_div(new_checked, duration);
- if (rtime != 0)
- do_div(speed, rtime);
- rc = snprintf(buf, len,
- "checked_phase1: "LPU64"\n"
- "checked_phase2: "LPU64"\n"
- "updated_phase1: "LPU64"\n"
- "updated_phase2: "LPU64"\n"
- "failed_phase1: "LPU64"\n"
- "failed_phase2: "LPU64"\n"
- "dirs: "LPU64"\n"
- "M-linked: "LPU64"\n"
- "nlinks_repaired: "LPU64"\n"
- "lost_found: "LPU64"\n"
- "success_count: %u\n"
- "run_time_phase1: %u seconds\n"
- "run_time_phase2: %u seconds\n"
- "average_speed_phase1: "LPU64" items/sec\n"
- "average_speed_phase2: N/A\n"
- "real-time_speed_phase1: "LPU64" items/sec\n"
- "real-time_speed_phase2: N/A\n",
- checked,
- ns->ln_objs_checked_phase2,
- ns->ln_items_repaired,
- ns->ln_objs_repaired_phase2,
- ns->ln_items_failed,
- ns->ln_objs_failed_phase2,
- ns->ln_dirs_checked,
- ns->ln_mlinked_checked,
- ns->ln_objs_nlink_repaired,
- ns->ln_objs_lost_found,
- ns->ln_success_count,
- rtime,
- ns->ln_run_time_phase2,
- speed,
- new_checked);
- if (rc <= 0)
- goto out;
-
- buf += rc;
- len -= rc;
- mdd_lfsck_pos_fill(env, lfsck, &pos, false);
- rc = lfsck_pos_dump(&buf, &len, &pos, "current_position");
- if (rc <= 0)
- goto out;
- } else if (ns->ln_status == LS_SCANNING_PHASE2) {
- cfs_duration_t duration = cfs_time_current() -
- lfsck->ml_time_last_checkpoint;
- __u64 checked = ns->ln_objs_checked_phase2 +
- com->lc_new_checked;
- __u64 speed1 = ns->ln_items_checked;
- __u64 speed2 = checked;
- __u64 new_checked = com->lc_new_checked * CFS_HZ;
- __u32 rtime = ns->ln_run_time_phase2 +
- cfs_duration_sec(duration + HALF_SEC);
-
- if (duration != 0)
- do_div(new_checked, duration);
- if (ns->ln_run_time_phase1 != 0)
- do_div(speed1, ns->ln_run_time_phase1);
- if (rtime != 0)
- do_div(speed2, rtime);
- rc = snprintf(buf, len,
- "checked_phase1: "LPU64"\n"
- "checked_phase2: "LPU64"\n"
- "updated_phase1: "LPU64"\n"
- "updated_phase2: "LPU64"\n"
- "failed_phase1: "LPU64"\n"
- "failed_phase2: "LPU64"\n"
- "dirs: "LPU64"\n"
- "M-linked: "LPU64"\n"
- "nlinks_repaired: "LPU64"\n"
- "lost_found: "LPU64"\n"
- "success_count: %u\n"
- "run_time_phase1: %u seconds\n"
- "run_time_phase2: %u seconds\n"
- "average_speed_phase1: "LPU64" items/sec\n"
- "average_speed_phase2: "LPU64" objs/sec\n"
- "real-time_speed_phase1: N/A\n"
- "real-time_speed_phase2: "LPU64" objs/sec\n"
- "current_position: "DFID"\n",
- ns->ln_items_checked,
- checked,
- ns->ln_items_repaired,
- ns->ln_objs_repaired_phase2,
- ns->ln_items_failed,
- ns->ln_objs_failed_phase2,
- ns->ln_dirs_checked,
- ns->ln_mlinked_checked,
- ns->ln_objs_nlink_repaired,
- ns->ln_objs_lost_found,
- ns->ln_success_count,
- ns->ln_run_time_phase1,
- rtime,
- speed1,
- speed2,
- new_checked,
- PFID(&ns->ln_fid_latest_scanned_phase2));
- if (rc <= 0)
- goto out;
-
- buf += rc;
- len -= rc;
- } else {
- __u64 speed1 = ns->ln_items_checked;
- __u64 speed2 = ns->ln_objs_checked_phase2;
-
- if (ns->ln_run_time_phase1 != 0)
- do_div(speed1, ns->ln_run_time_phase1);
- if (ns->ln_run_time_phase2 != 0)
- do_div(speed2, ns->ln_run_time_phase2);
- rc = snprintf(buf, len,
- "checked_phase1: "LPU64"\n"
- "checked_phase2: "LPU64"\n"
- "updated_phase1: "LPU64"\n"
- "updated_phase2: "LPU64"\n"
- "failed_phase1: "LPU64"\n"
- "failed_phase2: "LPU64"\n"
- "dirs: "LPU64"\n"
- "M-linked: "LPU64"\n"
- "nlinks_repaired: "LPU64"\n"
- "lost_found: "LPU64"\n"
- "success_count: %u\n"
- "run_time_phase1: %u seconds\n"
- "run_time_phase2: %u seconds\n"
- "average_speed_phase1: "LPU64" items/sec\n"
- "average_speed_phase2: "LPU64" objs/sec\n"
- "real-time_speed_phase1: N/A\n"
- "real-time_speed_phase2: N/A\n"
- "current_position: N/A\n",
- ns->ln_items_checked,
- ns->ln_objs_checked_phase2,
- ns->ln_items_repaired,
- ns->ln_objs_repaired_phase2,
- ns->ln_items_failed,
- ns->ln_objs_failed_phase2,
- ns->ln_dirs_checked,
- ns->ln_mlinked_checked,
- ns->ln_objs_nlink_repaired,
- ns->ln_objs_lost_found,
- ns->ln_success_count,
- ns->ln_run_time_phase1,
- ns->ln_run_time_phase2,
- speed1,
- speed2);
- if (rc <= 0)
- goto out;
-
- buf += rc;
- len -= rc;
- }
- ret = save - len;
-
-out:
- up_read(&com->lc_sem);
- return ret;
-}
-
-static int mdd_lfsck_namespace_double_scan(const struct lu_env *env,
- struct lfsck_component *com)
-{
- struct md_lfsck *lfsck = com->lc_lfsck;
- struct ptlrpc_thread *thread = &lfsck->ml_thread;
- struct mdd_device *mdd = mdd_lfsck2mdd(lfsck);
- struct lfsck_bookmark *bk = &lfsck->ml_bookmark_ram;
- struct lfsck_namespace *ns =
- (struct lfsck_namespace *)com->lc_file_ram;
- struct dt_object *obj = com->lc_obj;
- const struct dt_it_ops *iops = &obj->do_index_ops->dio_it;
- struct mdd_object *target;
- struct dt_it *di;
- struct dt_key *key;
- struct lu_fid fid;
- int rc;
- __u8 flags;
- ENTRY;
-
- lfsck->ml_new_scanned = 0;
- lfsck->ml_time_last_checkpoint = cfs_time_current();
- lfsck->ml_time_next_checkpoint = lfsck->ml_time_last_checkpoint +
- cfs_time_seconds(LFSCK_CHECKPOINT_INTERVAL);
-
- di = iops->init(env, obj, 0, BYPASS_CAPA);
- if (IS_ERR(di))
- RETURN(PTR_ERR(di));
-
- fid_cpu_to_be(&fid, &ns->ln_fid_latest_scanned_phase2);
- rc = iops->get(env, di, (const struct dt_key *)&fid);
- if (rc < 0)
- GOTO(fini, rc);
-
- /* Skip the start one, which either has been processed or non-exist. */
- rc = iops->next(env, di);
- if (rc != 0)
- GOTO(put, rc);
-
- if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_NO_DOUBLESCAN))
- GOTO(put, rc = 0);
-
- do {
- if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_DELAY3) &&
- cfs_fail_val > 0) {
- struct l_wait_info lwi;
-
- lwi = LWI_TIMEOUT(cfs_time_seconds(cfs_fail_val),
- NULL, NULL);
- l_wait_event(thread->t_ctl_waitq,
- !thread_is_running(thread),
- &lwi);
- }
-
- key = iops->key(env, di);
- fid_be_to_cpu(&fid, (const struct lu_fid *)key);
- target = mdd_object_find(env, mdd, &fid);
- down_write(&com->lc_sem);
- if (target == NULL) {
- rc = 0;
- goto checkpoint;
- } else if (IS_ERR(target)) {
- rc = PTR_ERR(target);
- goto checkpoint;
- }
-
- /* XXX: Currently, skip remote object, the consistency for
- * remote object will be processed in LFSCK phase III. */
- if (!mdd_object_exists(target) || mdd_object_remote(target))
- goto obj_put;
-
- rc = iops->rec(env, di, (struct dt_rec *)&flags, 0);
- if (rc == 0)
- rc = mdd_lfsck_namespace_double_scan_one(env, com,
- target, flags);
-
-obj_put:
- mdd_object_put(env, target);
-
-checkpoint:
- lfsck->ml_new_scanned++;
- com->lc_new_checked++;
- ns->ln_fid_latest_scanned_phase2 = fid;
- if (rc > 0)
- ns->ln_objs_repaired_phase2++;
- else if (rc < 0)
- ns->ln_objs_failed_phase2++;
- up_write(&com->lc_sem);
-
- if ((rc == 0) || ((rc > 0) && !(bk->lb_param & LPF_DRYRUN))) {
- mdd_lfsck_namespace_delete(env, com, &fid);
- } else if (rc < 0) {
- flags |= LLF_REPAIR_FAILED;
- mdd_lfsck_namespace_update(env, com, &fid, flags, true);
- }
-
- if (rc < 0 && bk->lb_param & LPF_FAILOUT)
- GOTO(put, rc);
-
- if (likely(cfs_time_beforeq(cfs_time_current(),
- lfsck->ml_time_next_checkpoint)) ||
- com->lc_new_checked == 0)
- goto speed;
-
- down_write(&com->lc_sem);
- ns->ln_run_time_phase2 += cfs_duration_sec(cfs_time_current() +
- HALF_SEC - lfsck->ml_time_last_checkpoint);
- ns->ln_time_last_checkpoint = cfs_time_current_sec();
- ns->ln_objs_checked_phase2 += com->lc_new_checked;
- com->lc_new_checked = 0;
- rc = mdd_lfsck_namespace_store(env, com, false);
- up_write(&com->lc_sem);
- if (rc != 0)
- GOTO(put, rc);
-
- lfsck->ml_time_last_checkpoint = cfs_time_current();
- lfsck->ml_time_next_checkpoint = lfsck->ml_time_last_checkpoint +
- cfs_time_seconds(LFSCK_CHECKPOINT_INTERVAL);
-
-speed:
- mdd_lfsck_control_speed(lfsck);
- if (unlikely(!thread_is_running(thread)))
- GOTO(put, rc = 0);
-
- rc = iops->next(env, di);
- } while (rc == 0);
-
- GOTO(put, rc);
-
-put:
- iops->put(env, di);
-
-fini:
- iops->fini(env, di);
- down_write(&com->lc_sem);
-
- ns->ln_run_time_phase2 += cfs_duration_sec(cfs_time_current() +
- HALF_SEC - lfsck->ml_time_last_checkpoint);
- ns->ln_time_last_checkpoint = cfs_time_current_sec();
- ns->ln_objs_checked_phase2 += com->lc_new_checked;
- com->lc_new_checked = 0;
-
- if (rc > 0) {
- com->lc_journal = 0;
- ns->ln_status = LS_COMPLETED;
- if (!(bk->lb_param & LPF_DRYRUN))
- ns->ln_flags &=
- ~(LF_SCANNED_ONCE | LF_INCONSISTENT | LF_UPGRADE);
- ns->ln_time_last_complete = ns->ln_time_last_checkpoint;
- ns->ln_success_count++;
- } else if (rc == 0) {
- if (lfsck->ml_paused)
- ns->ln_status = LS_PAUSED;
- else
- ns->ln_status = LS_STOPPED;
- } else {
- ns->ln_status = LS_FAILED;
- }
-
- if (ns->ln_status != LS_PAUSED) {
- spin_lock(&lfsck->ml_lock);
- cfs_list_del_init(&com->lc_link);
- cfs_list_add_tail(&com->lc_link, &lfsck->ml_list_idle);
- spin_unlock(&lfsck->ml_lock);
- }
-
- rc = mdd_lfsck_namespace_store(env, com, false);
-
- up_write(&com->lc_sem);
- return rc;
-}
-
-static struct lfsck_operations mdd_lfsck_namespace_ops = {
- .lfsck_reset = mdd_lfsck_namespace_reset,
- .lfsck_fail = mdd_lfsck_namespace_fail,
- .lfsck_checkpoint = mdd_lfsck_namespace_checkpoint,
- .lfsck_prep = mdd_lfsck_namespace_prep,
- .lfsck_exec_oit = mdd_lfsck_namespace_exec_oit,
- .lfsck_exec_dir = mdd_lfsck_namespace_exec_dir,
- .lfsck_post = mdd_lfsck_namespace_post,
- .lfsck_dump = mdd_lfsck_namespace_dump,
- .lfsck_double_scan = mdd_lfsck_namespace_double_scan,
-};
-
-/* LFSCK component setup/cleanup functions */
-
-static int mdd_lfsck_namespace_setup(const struct lu_env *env,
- struct md_lfsck *lfsck)
-{
- struct mdd_device *mdd = mdd_lfsck2mdd(lfsck);
- struct lfsck_component *com;
- struct lfsck_namespace *ns;
- struct dt_object *obj, *root;
- int rc;
- ENTRY;
-
- OBD_ALLOC_PTR(com);
- if (com == NULL)
- RETURN(-ENOMEM);
-
- CFS_INIT_LIST_HEAD(&com->lc_link);
- CFS_INIT_LIST_HEAD(&com->lc_link_dir);
- init_rwsem(&com->lc_sem);
- atomic_set(&com->lc_ref, 1);
- com->lc_lfsck = lfsck;
- com->lc_type = LT_NAMESPACE;
- com->lc_ops = &mdd_lfsck_namespace_ops;
- com->lc_file_size = sizeof(struct lfsck_namespace);
- OBD_ALLOC(com->lc_file_ram, com->lc_file_size);
- if (com->lc_file_ram == NULL)
- GOTO(out, rc = -ENOMEM);
-
- OBD_ALLOC(com->lc_file_disk, com->lc_file_size);
- if (com->lc_file_disk == NULL)
- GOTO(out, rc = -ENOMEM);
-
- root = dt_locate(env, mdd->mdd_bottom, &mdd->mdd_local_root_fid);
- if (unlikely(IS_ERR(root)))
- GOTO(out, rc = PTR_ERR(root));
-
- obj = local_index_find_or_create(env, mdd->mdd_los, root,
- lfsck_namespace_name,
- S_IFREG | S_IRUGO | S_IWUSR,
- &dt_lfsck_features);
- lu_object_put(env, &root->do_lu);
- if (IS_ERR(obj))
- GOTO(out, rc = PTR_ERR(obj));
-
- com->lc_obj = obj;
- rc = obj->do_ops->do_index_try(env, obj, &dt_lfsck_features);
- if (rc != 0)
- GOTO(out, rc);
-
- rc = mdd_lfsck_namespace_load(env, com);
- if (rc > 0)
- rc = mdd_lfsck_namespace_reset(env, com, true);
- else if (rc == -ENODATA)
- rc = mdd_lfsck_namespace_init(env, com);
- if (rc != 0)
- GOTO(out, rc);
-
- ns = (struct lfsck_namespace *)com->lc_file_ram;
- switch (ns->ln_status) {
- case LS_INIT:
- case LS_COMPLETED:
- case LS_FAILED:
- case LS_STOPPED:
- cfs_list_add_tail(&com->lc_link, &lfsck->ml_list_idle);
- break;
- default:
- CERROR("%s: unknown status: %u\n",
- mdd_lfsck2name(lfsck), ns->ln_status);
- /* fall through */
- case LS_SCANNING_PHASE1:
- case LS_SCANNING_PHASE2:
- /* No need to store the status to disk right now.
- * If the system crashed before the status stored,
- * it will be loaded back when next time. */
- ns->ln_status = LS_CRASHED;
- /* fall through */
- case LS_PAUSED:
- case LS_CRASHED:
- cfs_list_add_tail(&com->lc_link, &lfsck->ml_list_scan);
- cfs_list_add_tail(&com->lc_link_dir, &lfsck->ml_list_dir);
- break;
- }
-
- GOTO(out, rc = 0);
-
-out:
- if (rc != 0)
- mdd_lfsck_component_cleanup(env, com);
- return rc;
-}
-
-/* helper functions for framework */
-
-static int object_needs_lfsck(const struct lu_env *env, struct mdd_device *mdd,
- struct mdd_object *obj)
-{
- struct lu_fid *fid = &mdd_env_info(env)->mti_fid;
- int depth = 0;
- int rc;
-
- LASSERT(S_ISDIR(mdd_object_type(obj)));
-
- while (1) {
- if (mdd_is_root(mdd, mdo2fid(obj))) {
- if (depth > 0)
- mdd_object_put(env, obj);
- return 1;
- }
-
- /* .lustre doesn't contain "real" user objects, no need lfsck */
- if (fid_is_dot_lustre(mdo2fid(obj))) {
- if (depth > 0)
- mdd_object_put(env, obj);
- return 0;
- }
-
- mdd_read_lock(env, obj, MOR_TGT_CHILD);
- if (unlikely(mdd_is_dead_obj(obj))) {
- mdd_read_unlock(env, obj);
- if (depth > 0)
- mdd_object_put(env, obj);
- return 0;
- }
-
- rc = dt_xattr_get(env, mdd_object_child(obj),
- mdd_buf_get(env, NULL, 0), XATTR_NAME_LINK,
- BYPASS_CAPA);
- mdd_read_unlock(env, obj);
- if (rc >= 0) {
- if (depth > 0)
- mdd_object_put(env, obj);
- return 1;
- }
-
- if (rc < 0 && rc != -ENODATA) {
- if (depth > 0)
- mdd_object_put(env, obj);
- return rc;
- }
-
- rc = mdd_parent_fid(env, obj, fid);
- if (depth > 0)
- mdd_object_put(env, obj);
- if (rc != 0)
- return rc;
-
- if (unlikely(lu_fid_eq(fid, &mdd->mdd_local_root_fid)))
- return 0;
-
- obj = mdd_object_find(env, mdd, fid);
- if (obj == NULL)
- return 0;
- else if (IS_ERR(obj))
- return PTR_ERR(obj);
-
- if (!mdd_object_exists(obj)) {
- mdd_object_put(env, obj);
- return 0;
- }
-
- /* Currently, only client visible directory can be remote. */
- if (mdd_object_remote(obj)) {
- mdd_object_put(env, obj);
- return 1;
- }
-
- depth++;
- }
- return 0;
-}
-
-static void mdd_lfsck_unpack_ent(struct lu_dirent *ent)
-{
- fid_le_to_cpu(&ent->lde_fid, &ent->lde_fid);
- ent->lde_hash = le64_to_cpu(ent->lde_hash);
- ent->lde_reclen = le16_to_cpu(ent->lde_reclen);
- ent->lde_namelen = le16_to_cpu(ent->lde_namelen);
- ent->lde_attrs = le32_to_cpu(ent->lde_attrs);
-
- /* Make sure the name is terminated with '0'.
- * The data (type) after ent::lde_name maybe
- * broken, but we do not care. */
- ent->lde_name[ent->lde_namelen] = 0;
-}
-
-/* LFSCK wrap functions */
-
-static void mdd_lfsck_fail(const struct lu_env *env, struct md_lfsck *lfsck,
- bool new_checked)
-{
- struct lfsck_component *com;
-
- cfs_list_for_each_entry(com, &lfsck->ml_list_scan, lc_link) {
- com->lc_ops->lfsck_fail(env, com, new_checked);
- }
-}
-
-static int mdd_lfsck_checkpoint(const struct lu_env *env,
- struct md_lfsck *lfsck)
-{
- struct lfsck_component *com;
- int rc;
-
- if (likely(cfs_time_beforeq(cfs_time_current(),
- lfsck->ml_time_next_checkpoint)))
- return 0;
-
- mdd_lfsck_pos_fill(env, lfsck, &lfsck->ml_pos_current, false);
- cfs_list_for_each_entry(com, &lfsck->ml_list_scan, lc_link) {
- rc = com->lc_ops->lfsck_checkpoint(env, com, false);
- if (rc != 0)
- return rc;;
- }
-
- lfsck->ml_time_last_checkpoint = cfs_time_current();
- lfsck->ml_time_next_checkpoint = lfsck->ml_time_last_checkpoint +
- cfs_time_seconds(LFSCK_CHECKPOINT_INTERVAL);
- return 0;
-}
-
-static int mdd_lfsck_prep(struct lu_env *env, struct md_lfsck *lfsck)
-{
- struct mdd_device *mdd = mdd_lfsck2mdd(lfsck);
- struct mdd_object *obj = NULL;
- struct dt_object *dt_obj;
- struct lfsck_component *com;
- struct lfsck_component *next;
- struct lfsck_position *pos = NULL;
- const struct dt_it_ops *iops =
- &lfsck->ml_obj_oit->do_index_ops->dio_it;
- struct dt_it *di;
- int rc;
- ENTRY;
-
- LASSERT(lfsck->ml_obj_dir == NULL);
- LASSERT(lfsck->ml_di_dir == NULL);
-
- lfsck->ml_current_oit_processed = 0;
- cfs_list_for_each_entry_safe(com, next, &lfsck->ml_list_scan, lc_link) {
- com->lc_new_checked = 0;
- if (lfsck->ml_bookmark_ram.lb_param & LPF_DRYRUN)
- com->lc_journal = 0;
-
- rc = com->lc_ops->lfsck_prep(env, com);
- if (rc != 0)
- RETURN(rc);
-
- if ((pos == NULL) ||
- (!mdd_lfsck_pos_is_zero(&com->lc_pos_start) &&
- mdd_lfsck_pos_is_eq(pos, &com->lc_pos_start) > 0))
- pos = &com->lc_pos_start;
- }
-
- /* Init otable-based iterator. */
- if (pos == NULL) {
- rc = iops->load(env, lfsck->ml_di_oit, 0);
- if (rc > 0) {
- lfsck->ml_oit_over = 1;
- rc = 0;
- }
-
- GOTO(out, rc);
- }
-
- rc = iops->load(env, lfsck->ml_di_oit, pos->lp_oit_cookie);
- if (rc < 0)
- GOTO(out, rc);
- else if (rc > 0)
- lfsck->ml_oit_over = 1;
-
- if (fid_is_zero(&pos->lp_dir_parent))
- GOTO(out, rc = 0);
-
- /* Find the directory for namespace-based traverse. */
- obj = mdd_object_find(env, mdd, &pos->lp_dir_parent);
- if (obj == NULL)
- GOTO(out, rc = 0);
- else if (IS_ERR(obj))
- RETURN(PTR_ERR(obj));
-
- /* XXX: Currently, skip remote object, the consistency for
- * remote object will be processed in LFSCK phase III. */
- if (!mdd_object_exists(obj) || mdd_object_remote(obj) ||
- unlikely(!S_ISDIR(mdd_object_type(obj))))
- GOTO(out, rc = 0);
-
- if (unlikely(mdd_is_dead_obj(obj)))
- GOTO(out, rc = 0);
-
- dt_obj = mdd_object_child(obj);
- if (unlikely(!dt_try_as_dir(env, dt_obj)))
- GOTO(out, rc = -ENOTDIR);
-
- /* Init the namespace-based directory traverse. */
- iops = &dt_obj->do_index_ops->dio_it;
- di = iops->init(env, dt_obj, lfsck->ml_args_dir, BYPASS_CAPA);
- if (IS_ERR(di))
- GOTO(out, rc = PTR_ERR(di));
-
- LASSERT(pos->lp_dir_cookie < MDS_DIR_END_OFF);
-
- rc = iops->load(env, di, pos->lp_dir_cookie);
- if ((rc == 0) || (rc > 0 && pos->lp_dir_cookie > 0))
- rc = iops->next(env, di);
- else if (rc > 0)
- rc = 0;
-
- if (rc != 0) {
- iops->put(env, di);
- iops->fini(env, di);
- GOTO(out, rc);
- }
-
- lfsck->ml_obj_dir = dt_obj;
- spin_lock(&lfsck->ml_lock);
- lfsck->ml_di_dir = di;
- spin_unlock(&lfsck->ml_lock);
- obj = NULL;
-
- GOTO(out, rc = 0);
-
-out:
- if (obj != NULL)
- mdd_object_put(env, obj);
-
- if (rc < 0) {
- cfs_list_for_each_entry_safe(com, next, &lfsck->ml_list_scan,
- lc_link)
- com->lc_ops->lfsck_post(env, com, rc, true);
-
- return rc;
- }
-
- rc = 0;
- mdd_lfsck_pos_fill(env, lfsck, &lfsck->ml_pos_current, true);
- cfs_list_for_each_entry(com, &lfsck->ml_list_scan, lc_link) {
- rc = com->lc_ops->lfsck_checkpoint(env, com, true);
- if (rc != 0)
- break;
- }
-
- lfsck->ml_time_last_checkpoint = cfs_time_current();
- lfsck->ml_time_next_checkpoint = lfsck->ml_time_last_checkpoint +
- cfs_time_seconds(LFSCK_CHECKPOINT_INTERVAL);
- return rc;
-}
-
-static int mdd_lfsck_exec_oit(const struct lu_env *env, struct md_lfsck *lfsck,
- struct mdd_object *obj)
-{
- struct lfsck_component *com;
- struct dt_object *dt_obj;
- const struct dt_it_ops *iops;
- struct dt_it *di;
- int rc;
- ENTRY;
-
- LASSERT(lfsck->ml_obj_dir == NULL);
-
- cfs_list_for_each_entry(com, &lfsck->ml_list_scan, lc_link) {
- rc = com->lc_ops->lfsck_exec_oit(env, com, obj);
- if (rc != 0)
- RETURN(rc);
- }
-
- if (!S_ISDIR(mdd_object_type(obj)) ||
- cfs_list_empty(&lfsck->ml_list_dir))
- RETURN(0);
-
- rc = object_needs_lfsck(env, mdd_lfsck2mdd(lfsck), obj);
- if (rc <= 0)
- GOTO(out, rc);
-
- if (unlikely(mdd_is_dead_obj(obj)))
- GOTO(out, rc = 0);
-
- dt_obj = mdd_object_child(obj);
- if (unlikely(!dt_try_as_dir(env, dt_obj)))
- GOTO(out, rc = -ENOTDIR);
-
- iops = &dt_obj->do_index_ops->dio_it;
- di = iops->init(env, dt_obj, lfsck->ml_args_dir, BYPASS_CAPA);
- if (IS_ERR(di))
- GOTO(out, rc = PTR_ERR(di));
-
- rc = iops->load(env, di, 0);
- if (rc == 0)
- rc = iops->next(env, di);
- else if (rc > 0)
- rc = 0;
-
- if (rc != 0) {
- iops->put(env, di);
- iops->fini(env, di);
- GOTO(out, rc);
- }
-
- mdd_object_get(obj);
- lfsck->ml_obj_dir = dt_obj;
- spin_lock(&lfsck->ml_lock);
- lfsck->ml_di_dir = di;
- spin_unlock(&lfsck->ml_lock);
-
- GOTO(out, rc = 0);
-
-out:
- if (rc < 0)
- mdd_lfsck_fail(env, lfsck, false);
- return (rc > 0 ? 0 : rc);
-}
-
-static int mdd_lfsck_exec_dir(const struct lu_env *env, struct md_lfsck *lfsck,
- struct mdd_object *obj, struct lu_dirent *ent)
-{
- struct lfsck_component *com;
- int rc;
-
- cfs_list_for_each_entry(com, &lfsck->ml_list_scan, lc_link) {
- rc = com->lc_ops->lfsck_exec_dir(env, com, obj, ent);
- if (rc != 0)
- return rc;
- }
- return 0;
-}
-
-static int mdd_lfsck_post(const struct lu_env *env, struct md_lfsck *lfsck,
- int result)
-{
- struct lfsck_component *com;
- struct lfsck_component *next;
- int rc;
-
- mdd_lfsck_pos_fill(env, lfsck, &lfsck->ml_pos_current, false);
- cfs_list_for_each_entry_safe(com, next, &lfsck->ml_list_scan, lc_link) {
- rc = com->lc_ops->lfsck_post(env, com, result, false);
- if (rc != 0)
- return rc;
- }
-
- lfsck->ml_time_last_checkpoint = cfs_time_current();
- lfsck->ml_time_next_checkpoint = lfsck->ml_time_last_checkpoint +
- cfs_time_seconds(LFSCK_CHECKPOINT_INTERVAL);
- return result;
-}
-
-static int mdd_lfsck_double_scan(const struct lu_env *env,
- struct md_lfsck *lfsck)
-{
- struct lfsck_component *com;
- struct lfsck_component *next;
- int rc;
-
- cfs_list_for_each_entry_safe(com, next, &lfsck->ml_list_double_scan,
- lc_link) {
- if (lfsck->ml_bookmark_ram.lb_param & LPF_DRYRUN)
- com->lc_journal = 0;
-
- rc = com->lc_ops->lfsck_double_scan(env, com);
- if (rc != 0)
- return rc;
- }
- return 0;
-}
-
-/* LFSCK engines */
-
-static int mdd_lfsck_dir_engine(const struct lu_env *env,
- struct md_lfsck *lfsck)
-{
- struct mdd_thread_info *info = mdd_env_info(env);
- struct mdd_device *mdd = mdd_lfsck2mdd(lfsck);
- const struct dt_it_ops *iops =
- &lfsck->ml_obj_dir->do_index_ops->dio_it;
- struct dt_it *di = lfsck->ml_di_dir;
- struct lu_dirent *ent = &info->mti_ent;
- struct lu_fid *fid = &info->mti_fid;
- struct lfsck_bookmark *bk = &lfsck->ml_bookmark_ram;
- struct ptlrpc_thread *thread = &lfsck->ml_thread;
- int rc;
- ENTRY;
-
- do {
- struct mdd_object *child;
-
- if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_DELAY2) &&
- cfs_fail_val > 0) {
- struct l_wait_info lwi;
-
- lwi = LWI_TIMEOUT(cfs_time_seconds(cfs_fail_val),
- NULL, NULL);
- l_wait_event(thread->t_ctl_waitq,
- !thread_is_running(thread),
- &lwi);
- }
-
- lfsck->ml_new_scanned++;
- rc = iops->rec(env, di, (struct dt_rec *)ent,
- lfsck->ml_args_dir);
- if (rc != 0) {
- mdd_lfsck_fail(env, lfsck, true);
- if (bk->lb_param & LPF_FAILOUT)
- RETURN(rc);
- else
- goto checkpoint;
- }
-
- mdd_lfsck_unpack_ent(ent);
- if (ent->lde_attrs & LUDA_IGNORE)
- goto checkpoint;
-
- *fid = ent->lde_fid;
- child = mdd_object_find(env, mdd, fid);
- if (child == NULL) {
- goto checkpoint;
- } else if (IS_ERR(child)) {
- mdd_lfsck_fail(env, lfsck, true);
- if (bk->lb_param & LPF_FAILOUT)
- RETURN(PTR_ERR(child));
- else
- goto checkpoint;
- }
-
- /* XXX: Currently, skip remote object, the consistency for
- * remote object will be processed in LFSCK phase III. */
- if (mdd_object_exists(child) && !mdd_object_remote(child))
- rc = mdd_lfsck_exec_dir(env, lfsck, child, ent);
- mdd_object_put(env, child);
- if (rc != 0 && bk->lb_param & LPF_FAILOUT)
- RETURN(rc);
-
-checkpoint:
- rc = mdd_lfsck_checkpoint(env, lfsck);
- if (rc != 0 && bk->lb_param & LPF_FAILOUT)
- RETURN(rc);
-
- /* Rate control. */
- mdd_lfsck_control_speed(lfsck);
- if (unlikely(!thread_is_running(thread)))
- RETURN(0);
-
- if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_FATAL2)) {
- spin_lock(&lfsck->ml_lock);
- thread_set_flags(thread, SVC_STOPPING);
- spin_unlock(&lfsck->ml_lock);
- RETURN(-EINVAL);
- }
-
- rc = iops->next(env, di);
- } while (rc == 0);
-
- if (rc > 0 && !lfsck->ml_oit_over)
- mdd_lfsck_close_dir(env, lfsck);
-
- RETURN(rc);
-}
-
-static int mdd_lfsck_oit_engine(const struct lu_env *env,
- struct md_lfsck *lfsck)
-{
- struct mdd_thread_info *info = mdd_env_info(env);
- struct mdd_device *mdd = mdd_lfsck2mdd(lfsck);
- const struct dt_it_ops *iops =
- &lfsck->ml_obj_oit->do_index_ops->dio_it;
- struct dt_it *di = lfsck->ml_di_oit;
- struct lu_fid *fid = &info->mti_fid;
- struct lfsck_bookmark *bk = &lfsck->ml_bookmark_ram;
- struct ptlrpc_thread *thread = &lfsck->ml_thread;
- int rc;
- ENTRY;
-
- do {
- struct mdd_object *target;
-
- if (lfsck->ml_di_dir != NULL) {
- rc = mdd_lfsck_dir_engine(env, lfsck);
- if (rc <= 0)
- RETURN(rc);
- }
-
- if (unlikely(lfsck->ml_oit_over))
- RETURN(1);
-
- if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_DELAY1) &&
- cfs_fail_val > 0) {
- struct l_wait_info lwi;
-
- lwi = LWI_TIMEOUT(cfs_time_seconds(cfs_fail_val),
- NULL, NULL);
- l_wait_event(thread->t_ctl_waitq,
- !thread_is_running(thread),
- &lwi);
- }
-
- if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_CRASH))
- RETURN(0);
-
- lfsck->ml_current_oit_processed = 1;
- lfsck->ml_new_scanned++;
- rc = iops->rec(env, di, (struct dt_rec *)fid, 0);
- if (rc != 0) {
- mdd_lfsck_fail(env, lfsck, true);
- if (bk->lb_param & LPF_FAILOUT)
- RETURN(rc);
- else
- goto checkpoint;
- }
-
- target = mdd_object_find(env, mdd, fid);
- if (target == NULL) {
- goto checkpoint;
- } else if (IS_ERR(target)) {
- mdd_lfsck_fail(env, lfsck, true);
- if (bk->lb_param & LPF_FAILOUT)
- RETURN(PTR_ERR(target));
- else
- goto checkpoint;
- }
-
- /* XXX: Currently, skip remote object, the consistency for
- * remote object will be processed in LFSCK phase III. */
- if (mdd_object_exists(target) && !mdd_object_remote(target))
- rc = mdd_lfsck_exec_oit(env, lfsck, target);
- mdd_object_put(env, target);
- if (rc != 0 && bk->lb_param & LPF_FAILOUT)
- RETURN(rc);
-
-checkpoint:
- rc = mdd_lfsck_checkpoint(env, lfsck);
- if (rc != 0 && bk->lb_param & LPF_FAILOUT)
- RETURN(rc);
-
- /* Rate control. */
- mdd_lfsck_control_speed(lfsck);
-
- if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_FATAL1)) {
- spin_lock(&lfsck->ml_lock);
- thread_set_flags(thread, SVC_STOPPING);
- spin_unlock(&lfsck->ml_lock);
- RETURN(-EINVAL);
- }
-
- rc = iops->next(env, di);
- if (unlikely(rc > 0))
- lfsck->ml_oit_over = 1;
- else if (likely(rc == 0))
- lfsck->ml_current_oit_processed = 0;
-
- if (unlikely(!thread_is_running(thread)))
- RETURN(0);
- } while (rc == 0 || lfsck->ml_di_dir != NULL);
-
- RETURN(rc);
-}
-
-static int mdd_lfsck_main(void *args)
-{
- struct lu_env env;
- struct md_lfsck *lfsck = (struct md_lfsck *)args;
- struct ptlrpc_thread *thread = &lfsck->ml_thread;
- struct dt_object *oit_obj = lfsck->ml_obj_oit;
- const struct dt_it_ops *oit_iops = &oit_obj->do_index_ops->dio_it;
- struct dt_it *oit_di;
- int rc;
- ENTRY;
-
- cfs_daemonize("lfsck");
- rc = lu_env_init(&env, LCT_MD_THREAD | LCT_DT_THREAD);
- if (rc != 0) {
- CERROR("%s: LFSCK, fail to init env, rc = %d\n",
- mdd_lfsck2name(lfsck), rc);
- GOTO(noenv, rc);
- }
-
- oit_di = oit_iops->init(&env, oit_obj, lfsck->ml_args_oit, BYPASS_CAPA);
- if (IS_ERR(oit_di)) {
- rc = PTR_ERR(oit_di);
- CERROR("%s: LFSCK, fail to init iteration, rc = %d\n",
- mdd_lfsck2name(lfsck), rc);
- GOTO(fini_env, rc);
- }
-
- spin_lock(&lfsck->ml_lock);
- lfsck->ml_di_oit = oit_di;
- spin_unlock(&lfsck->ml_lock);
- rc = mdd_lfsck_prep(&env, lfsck);
- if (rc != 0)
- GOTO(fini_oit, rc);
-
- CDEBUG(D_LFSCK, "LFSCK entry: oit_flags = 0x%x, dir_flags = 0x%x, "
- "oit_cookie = "LPU64", dir_cookie = "LPU64", parent = "DFID
- ", pid = %d\n", lfsck->ml_args_oit, lfsck->ml_args_dir,
- lfsck->ml_pos_current.lp_oit_cookie,
- lfsck->ml_pos_current.lp_dir_cookie,
- PFID(&lfsck->ml_pos_current.lp_dir_parent),
- cfs_curproc_pid());
-
- spin_lock(&lfsck->ml_lock);
- thread_set_flags(thread, SVC_RUNNING);
- spin_unlock(&lfsck->ml_lock);
- cfs_waitq_broadcast(&thread->t_ctl_waitq);
-
- if (!cfs_list_empty(&lfsck->ml_list_scan) ||
- cfs_list_empty(&lfsck->ml_list_double_scan))
- rc = mdd_lfsck_oit_engine(&env, lfsck);
- else
- rc = 1;
-
- CDEBUG(D_LFSCK, "LFSCK exit: oit_flags = 0x%x, dir_flags = 0x%x, "
- "oit_cookie = "LPU64", dir_cookie = "LPU64", parent = "DFID
- ", pid = %d, rc = %d\n", lfsck->ml_args_oit, lfsck->ml_args_dir,
- lfsck->ml_pos_current.lp_oit_cookie,
- lfsck->ml_pos_current.lp_dir_cookie,
- PFID(&lfsck->ml_pos_current.lp_dir_parent),
- cfs_curproc_pid(), rc);
-
- if (lfsck->ml_paused && cfs_list_empty(&lfsck->ml_list_scan))
- oit_iops->put(&env, oit_di);
-
- if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_CRASH))
- rc = mdd_lfsck_post(&env, lfsck, rc);
- if (lfsck->ml_di_dir != NULL)
- mdd_lfsck_close_dir(&env, lfsck);
-
-fini_oit:
- spin_lock(&lfsck->ml_lock);
- lfsck->ml_di_oit = NULL;
- spin_unlock(&lfsck->ml_lock);
-
- oit_iops->fini(&env, oit_di);
- if (rc == 1) {
- if (!cfs_list_empty(&lfsck->ml_list_double_scan))
- rc = mdd_lfsck_double_scan(&env, lfsck);
- else
- rc = 0;
- }
-
- /* XXX: Purge the pinned objects in the future. */
-
-fini_env:
- lu_env_fini(&env);
-
-noenv:
- spin_lock(&lfsck->ml_lock);
- thread_set_flags(thread, SVC_STOPPED);
- cfs_waitq_broadcast(&thread->t_ctl_waitq);
- spin_unlock(&lfsck->ml_lock);
- return rc;
-}
-
-/* external interfaces */
-
-int mdd_lfsck_set_speed(const struct lu_env *env, struct md_lfsck *lfsck,
- __u32 limit)
-{
- int rc;
-
- mutex_lock(&lfsck->ml_mutex);
- __mdd_lfsck_set_speed(lfsck, limit);
- rc = mdd_lfsck_bookmark_store(env, lfsck);
- mutex_unlock(&lfsck->ml_mutex);
- return rc;
-}
-
-int mdd_lfsck_dump(const struct lu_env *env, struct md_lfsck *lfsck,
- __u16 type, char *buf, int len)
-{
- struct lfsck_component *com;
- int rc;
-
- if (!lfsck->ml_initialized)
- return -ENODEV;
-
- com = mdd_lfsck_component_find(lfsck, type);
- if (com == NULL)
- return -ENOTSUPP;
-
- rc = com->lc_ops->lfsck_dump(env, com, buf, len);
- mdd_lfsck_component_put(env, com);
- return rc;
-}
-
-int mdd_lfsck_start(const struct lu_env *env, struct md_lfsck *lfsck,
- struct lfsck_start *start)
-{
- struct lfsck_bookmark *bk = &lfsck->ml_bookmark_ram;
- struct ptlrpc_thread *thread = &lfsck->ml_thread;
- struct lfsck_component *com;
- struct l_wait_info lwi = { 0 };
- bool dirty = false;
- int rc = 0;
- __u16 valid = 0;
- __u16 flags = 0;
- ENTRY;
-
- if (lfsck->ml_obj_oit == NULL)
- RETURN(-ENOTSUPP);
-
- /* start == NULL means auto trigger paused LFSCK. */
- if ((start == NULL) &&
- (cfs_list_empty(&lfsck->ml_list_scan) ||
- OBD_FAIL_CHECK(OBD_FAIL_LFSCK_NO_AUTO)))
- RETURN(0);
-
- mutex_lock(&lfsck->ml_mutex);
- spin_lock(&lfsck->ml_lock);
- if (!thread_is_init(thread) && !thread_is_stopped(thread)) {
- spin_unlock(&lfsck->ml_lock);
- mutex_unlock(&lfsck->ml_mutex);
- RETURN(-EALREADY);
- }
-
- spin_unlock(&lfsck->ml_lock);
-
- lfsck->ml_paused = 0;
- lfsck->ml_oit_over = 0;
- lfsck->ml_drop_dryrun = 0;
- lfsck->ml_new_scanned = 0;
-
- /* For auto trigger. */
- if (start == NULL)
- goto trigger;
-
- start->ls_version = bk->lb_version;
- if (start->ls_valid & LSV_SPEED_LIMIT) {
- __mdd_lfsck_set_speed(lfsck, start->ls_speed_limit);
- dirty = true;
- }
-
- if (start->ls_valid & LSV_ERROR_HANDLE) {
- valid |= DOIV_ERROR_HANDLE;
- if (start->ls_flags & LPF_FAILOUT)
- flags |= DOIF_FAILOUT;
-
- if ((start->ls_flags & LPF_FAILOUT) &&
- !(bk->lb_param & LPF_FAILOUT)) {
- bk->lb_param |= LPF_FAILOUT;
- dirty = true;
- } else if (!(start->ls_flags & LPF_FAILOUT) &&
- (bk->lb_param & LPF_FAILOUT)) {
- bk->lb_param &= ~LPF_FAILOUT;
- dirty = true;
- }
- }
-
- if (start->ls_valid & LSV_DRYRUN) {
- if ((start->ls_flags & LPF_DRYRUN) &&
- !(bk->lb_param & LPF_DRYRUN)) {
- bk->lb_param |= LPF_DRYRUN;
- dirty = true;
- } else if (!(start->ls_flags & LPF_DRYRUN) &&
- (bk->lb_param & LPF_DRYRUN)) {
- bk->lb_param &= ~LPF_DRYRUN;
- lfsck->ml_drop_dryrun = 1;
- dirty = true;
- }
- }
-
- if (dirty) {
- rc = mdd_lfsck_bookmark_store(env, lfsck);
- if (rc != 0)
- GOTO(out, rc);
- }
-
- if (start->ls_flags & LPF_RESET)
- flags |= DOIF_RESET;
-
- if (start->ls_active != 0) {
- struct lfsck_component *next;
- __u16 type = 1;
-
- if (start->ls_active == LFSCK_TYPES_ALL)
- start->ls_active = LFSCK_TYPES_SUPPORTED;
-
- if (start->ls_active & ~LFSCK_TYPES_SUPPORTED) {
- start->ls_active &= ~LFSCK_TYPES_SUPPORTED;
- GOTO(out, rc = -ENOTSUPP);
- }
-
- cfs_list_for_each_entry_safe(com, next,
- &lfsck->ml_list_scan, lc_link) {
- if (!(com->lc_type & start->ls_active)) {
- rc = com->lc_ops->lfsck_post(env, com, 0,
- false);
- if (rc != 0)
- GOTO(out, rc);
- }
- }
-
- while (start->ls_active != 0) {
- if (type & start->ls_active) {
- com = __mdd_lfsck_component_find(lfsck, type,
- &lfsck->ml_list_idle);
- if (com != NULL) {
- /* The component status will be updated
- * when its prep() is called later by
- * the LFSCK main engine. */
- cfs_list_del_init(&com->lc_link);
- cfs_list_add_tail(&com->lc_link,
- &lfsck->ml_list_scan);
- }
- start->ls_active &= ~type;
- }
- type <<= 1;
- }
- }
-
- cfs_list_for_each_entry(com, &lfsck->ml_list_scan, lc_link) {
- start->ls_active |= com->lc_type;
- if (flags & DOIF_RESET) {
- rc = com->lc_ops->lfsck_reset(env, com, false);
- if (rc != 0)
- GOTO(out, rc);
- }
- }
-
-trigger:
- lfsck->ml_args_dir = LUDA_64BITHASH | LUDA_VERIFY;
- if (bk->lb_param & LPF_DRYRUN)
- lfsck->ml_args_dir |= LUDA_VERIFY_DRYRUN;
-
- if (bk->lb_param & LPF_FAILOUT) {
- valid |= DOIV_ERROR_HANDLE;
- flags |= DOIF_FAILOUT;
- }
-
- if (!cfs_list_empty(&lfsck->ml_list_scan))
- flags |= DOIF_OUTUSED;
-
- lfsck->ml_args_oit = (flags << DT_OTABLE_IT_FLAGS_SHIFT) | valid;
- thread_set_flags(thread, 0);
- rc = cfs_create_thread(mdd_lfsck_main, lfsck, 0);
- if (rc < 0)
- CERROR("%s: cannot start LFSCK thread, rc = %d\n",
- mdd_lfsck2name(lfsck), rc);
- else
- l_wait_event(thread->t_ctl_waitq,
- thread_is_running(thread) ||
- thread_is_stopped(thread),
- &lwi);
-
- GOTO(out, rc = 0);
-
-out:
- mutex_unlock(&lfsck->ml_mutex);
- return (rc < 0 ? rc : 0);
-}
-
-int mdd_lfsck_stop(const struct lu_env *env, struct md_lfsck *lfsck,
- bool pause)
-{
- struct ptlrpc_thread *thread = &lfsck->ml_thread;
- struct l_wait_info lwi = { 0 };
- ENTRY;
-
- if (!lfsck->ml_initialized)
- RETURN(0);
-
- mutex_lock(&lfsck->ml_mutex);
- spin_lock(&lfsck->ml_lock);
- if (thread_is_init(thread) || thread_is_stopped(thread)) {
- spin_unlock(&lfsck->ml_lock);
- mutex_unlock(&lfsck->ml_mutex);
- RETURN(-EALREADY);
- }
-
- if (pause)
- lfsck->ml_paused = 1;
- thread_set_flags(thread, SVC_STOPPING);
- /* The LFSCK thread may be sleeping on low layer wait queue,
- * wake it up. */
- if (likely(lfsck->ml_di_oit != NULL))
- lfsck->ml_obj_oit->do_index_ops->dio_it.put(env,
- lfsck->ml_di_oit);
- spin_unlock(&lfsck->ml_lock);
-
- cfs_waitq_broadcast(&thread->t_ctl_waitq);
- l_wait_event(thread->t_ctl_waitq,
- thread_is_stopped(thread),
- &lwi);
- mutex_unlock(&lfsck->ml_mutex);
-
- RETURN(0);
-}
-
-static const struct lu_fid lfsck_it_fid = { .f_seq = FID_SEQ_LOCAL_FILE,
- .f_oid = OTABLE_IT_OID,
- .f_ver = 0 };
-
-int mdd_lfsck_setup(const struct lu_env *env, struct mdd_device *mdd)
-{
- struct md_lfsck *lfsck = &mdd->mdd_lfsck;
- struct dt_object *obj;
- struct lu_fid fid;
- int rc;
-
- ENTRY;
-
- LASSERT(!lfsck->ml_initialized);
-
- lfsck->ml_initialized = 1;
- mutex_init(&lfsck->ml_mutex);
- spin_lock_init(&lfsck->ml_lock);
- CFS_INIT_LIST_HEAD(&lfsck->ml_list_scan);
- CFS_INIT_LIST_HEAD(&lfsck->ml_list_dir);
- CFS_INIT_LIST_HEAD(&lfsck->ml_list_double_scan);
- CFS_INIT_LIST_HEAD(&lfsck->ml_list_idle);
- cfs_waitq_init(&lfsck->ml_thread.t_ctl_waitq);
-
- obj = dt_locate(env, mdd->mdd_bottom, &lfsck_it_fid);
- if (IS_ERR(obj))
- RETURN(PTR_ERR(obj));
-
- lfsck->ml_obj_oit = obj;
- rc = obj->do_ops->do_index_try(env, obj, &dt_otable_features);
- if (rc != 0) {
- if (rc == -ENOTSUPP)
- RETURN(0);
- GOTO(out, rc);
- }
-
- /* LFSCK bookmark */
- fid_zero(&fid);
- rc = mdd_local_file_create(env, mdd, &mdd->mdd_local_root_fid,
- lfsck_bookmark_name,
- S_IFREG | S_IRUGO | S_IWUSR, &fid);
- if (rc < 0)
- GOTO(out, rc);
-
- obj = dt_locate(env, mdd->mdd_bottom, &fid);
- if (IS_ERR(obj))
- GOTO(out, rc = PTR_ERR(obj));
-
- LASSERT(lu_object_exists(&obj->do_lu));
- lfsck->ml_bookmark_obj = obj;
-
- rc = mdd_lfsck_bookmark_load(env, lfsck);
- if (rc == -ENODATA)
- rc = mdd_lfsck_bookmark_init(env, lfsck);
- if (rc != 0)
- GOTO(out, rc);
-
- rc = mdd_lfsck_namespace_setup(env, lfsck);
- if (rc < 0)
- GOTO(out, rc);
- /* XXX: LFSCK components initialization to be added here. */
- RETURN(0);
-out:
- lu_object_put(env, &lfsck->ml_obj_oit->do_lu);
- lfsck->ml_obj_oit = NULL;
- return 0;
-}
-
-void mdd_lfsck_cleanup(const struct lu_env *env, struct mdd_device *mdd)
-{
- struct md_lfsck *lfsck = &mdd->mdd_lfsck;
- struct ptlrpc_thread *thread = &lfsck->ml_thread;
- struct lfsck_component *com;
-
- if (!lfsck->ml_initialized)
- return;
-
- LASSERT(thread_is_init(thread) || thread_is_stopped(thread));
-
- if (lfsck->ml_obj_oit != NULL) {
- lu_object_put(env, &lfsck->ml_obj_oit->do_lu);
- lfsck->ml_obj_oit = NULL;
- }
-
- LASSERT(lfsck->ml_obj_dir == NULL);
-
- if (lfsck->ml_bookmark_obj != NULL) {
- lu_object_put(env, &lfsck->ml_bookmark_obj->do_lu);
- lfsck->ml_bookmark_obj = NULL;
- }
-
- while (!cfs_list_empty(&lfsck->ml_list_scan)) {
- com = cfs_list_entry(lfsck->ml_list_scan.next,
- struct lfsck_component,
- lc_link);
- mdd_lfsck_component_cleanup(env, com);
- }
-
- LASSERT(cfs_list_empty(&lfsck->ml_list_dir));
-
- while (!cfs_list_empty(&lfsck->ml_list_double_scan)) {
- com = cfs_list_entry(lfsck->ml_list_double_scan.next,
- struct lfsck_component,
- lc_link);
- mdd_lfsck_component_cleanup(env, com);
- }
-
- while (!cfs_list_empty(&lfsck->ml_list_idle)) {
- com = cfs_list_entry(lfsck->ml_list_idle.next,
- struct lfsck_component,
- lc_link);
- mdd_lfsck_component_cleanup(env, com);
- }
-}
git://git.whamcloud.com / fs / lustre-release.git / commitdiff