lustre/ofd/ofd_fs.c

   1 /*
   2  * GPL HEADER START
   3  *
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 only,
   8  * as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License version 2 for more details (a copy is included
  14  * in the LICENSE file that accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * version 2 along with this program; If not, see
  18  * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
  19  *
  20  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  21  * CA 95054 USA or visit www.sun.com if you need additional information or
  22  * have any questions.
  23  *
  24  * GPL HEADER END
  25  */
  26 /*
  27  * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
  28  * Use is subject to license terms.
  29  *
  30  * Copyright (c) 2012, Intel Corporation.
  31  */
  32 /*
  33  * This file is part of Lustre, http://www.lustre.org/
  34  * Lustre is a trademark of Sun Microsystems, Inc.
  35  *
  36  * lustre/ofd/ofd_fs.c
  37  *
  38  * Author: Alexey Zhuravlev <bzzz@whamcloud.com>
  39  * Author: Mikhail Pershin <tappro@whamcloud.com>
  40  */
  41
  42 #define DEBUG_SUBSYSTEM S_FILTER
  43
  44 #include "ofd_internal.h"
  45
  46 int ofd_record_write(const struct lu_env *env, struct ofd_device *ofd,
  47                      struct dt_object *dt, struct lu_buf *buf, loff_t *off)
  48 {
  49         struct thandle  *th;
  50         int              rc;
  51
  52         ENTRY;
  53
  54         LASSERT(dt);
  55
  56         th = dt_trans_create(env, ofd->ofd_osd);
  57         if (IS_ERR(th))
  58                 RETURN(PTR_ERR(th));
  59
  60         rc = dt_declare_record_write(env, dt, buf->lb_len, *off, th);
  61         if (rc == 0) {
  62                 rc = dt_trans_start_local(env, ofd->ofd_osd, th);
  63                 if (rc == 0)
  64                         rc = dt_record_write(env, dt, buf, off, th);
  65         }
  66         dt_trans_stop(env, ofd->ofd_osd, th);
  67
  68         RETURN(rc);
  69 }
  70
  71 int ofd_precreate_batch(struct ofd_device *ofd, int batch)
  72 {
  73         int count;
  74
  75         spin_lock(&ofd->ofd_batch_lock);
  76         count = min(ofd->ofd_precreate_batch, batch);
  77         spin_unlock(&ofd->ofd_batch_lock);
  78
  79         return count;
  80 }
  81
  82 struct ofd_seq *ofd_seq_get(struct ofd_device *ofd, obd_seq seq)
  83 {
  84         struct ofd_seq *oseq;
  85
  86         read_lock(&ofd->ofd_seq_list_lock);
  87         cfs_list_for_each_entry(oseq, &ofd->ofd_seq_list, os_list) {
  88                 if (oseq->os_seq == seq) {
  89                         cfs_atomic_inc(&oseq->os_refc);
  90                         read_unlock(&ofd->ofd_seq_list_lock);
  91                         return oseq;
  92                 }
  93         }
  94         read_unlock(&ofd->ofd_seq_list_lock);
  95         return NULL;
  96 }
  97
  98 static void ofd_seq_destroy(const struct lu_env *env,
  99                             struct ofd_seq *oseq)
 100 {
 101         LASSERT(cfs_list_empty(&oseq->os_list));
 102         LASSERT(oseq->os_lastid_obj != NULL);
 103         lu_object_put(env, &oseq->os_lastid_obj->do_lu);
 104         OBD_FREE_PTR(oseq);
 105 }
 106
 107 void ofd_seq_put(const struct lu_env *env, struct ofd_seq *oseq)
 108 {
 109         if (cfs_atomic_dec_and_test(&oseq->os_refc))
 110                 ofd_seq_destroy(env, oseq);
 111 }
 112
 113 static void ofd_seq_delete(const struct lu_env *env, struct ofd_seq *oseq)
 114 {
 115         cfs_list_del_init(&oseq->os_list);
 116         ofd_seq_put(env, oseq);
 117 }
 118
 119 /**
 120  * Add a new sequence to the OFD device.
 121  *
 122  * \param ofd OFD device
 123  * \param new_seq new sequence to be added
 124  *
 125  * \retval the seq to be added or the existing seq
 126  **/
 127 static struct ofd_seq *ofd_seq_add(const struct lu_env *env,
 128                                    struct ofd_device *ofd,
 129                                    struct ofd_seq *new_seq)
 130 {
 131         struct ofd_seq *os = NULL;
 132
 133         write_lock(&ofd->ofd_seq_list_lock);
 134         cfs_list_for_each_entry(os, &ofd->ofd_seq_list, os_list) {
 135                 if (os->os_seq == new_seq->os_seq) {
 136                         cfs_atomic_inc(&os->os_refc);
 137                         write_unlock(&ofd->ofd_seq_list_lock);
 138                         /* The seq has not been added to the list */
 139                         ofd_seq_put(env, new_seq);
 140                         return os;
 141                 }
 142         }
 143         cfs_atomic_inc(&new_seq->os_refc);
 144         cfs_list_add_tail(&new_seq->os_list, &ofd->ofd_seq_list);
 145         ofd->ofd_seq_count++;
 146         write_unlock(&ofd->ofd_seq_list_lock);
 147         return new_seq;
 148 }
 149
 150 obd_id ofd_seq_last_oid(struct ofd_seq *oseq)
 151 {
 152         obd_id id;
 153
 154         spin_lock(&oseq->os_last_oid_lock);
 155         id = oseq->os_last_oid;
 156         spin_unlock(&oseq->os_last_oid_lock);
 157
 158         return id;
 159 }
 160
 161 void ofd_seq_last_oid_set(struct ofd_seq *oseq, obd_id id)
 162 {
 163         spin_lock(&oseq->os_last_oid_lock);
 164         if (likely(oseq->os_last_oid < id))
 165                 oseq->os_last_oid = id;
 166         spin_unlock(&oseq->os_last_oid_lock);
 167 }
 168
 169 int ofd_seq_last_oid_write(const struct lu_env *env, struct ofd_device *ofd,
 170                            struct ofd_seq *oseq)
 171 {
 172         struct ofd_thread_info  *info = ofd_info(env);
 173         obd_id                   tmp;
 174         int                      rc;
 175
 176         ENTRY;
 177
 178         info->fti_buf.lb_buf = &tmp;
 179         info->fti_buf.lb_len = sizeof(tmp);
 180         info->fti_off = 0;
 181
 182         CDEBUG(D_INODE, "%s: write last_objid for seq "LPX64" : "LPX64"\n",
 183                ofd_name(ofd), oseq->os_seq, ofd_seq_last_oid(oseq));
 184
 185         tmp = cpu_to_le64(ofd_seq_last_oid(oseq));
 186
 187         rc = ofd_record_write(env, ofd, oseq->os_lastid_obj, &info->fti_buf,
 188                               &info->fti_off);
 189         RETURN(rc);
 190 }
 191
 192 void ofd_seqs_fini(const struct lu_env *env, struct ofd_device *ofd)
 193 {
 194         struct ofd_seq  *oseq;
 195         struct ofd_seq  *tmp;
 196         cfs_list_t       dispose;
 197
 198         CFS_INIT_LIST_HEAD(&dispose);
 199         write_lock(&ofd->ofd_seq_list_lock);
 200         cfs_list_for_each_entry_safe(oseq, tmp, &ofd->ofd_seq_list, os_list) {
 201                 cfs_list_move(&oseq->os_list, &dispose);
 202         }
 203         write_unlock(&ofd->ofd_seq_list_lock);
 204
 205         while (!cfs_list_empty(&dispose)) {
 206                 oseq = container_of0(dispose.next, struct ofd_seq, os_list);
 207                 ofd_seq_delete(env, oseq);
 208         }
 209
 210         LASSERT(cfs_list_empty(&ofd->ofd_seq_list));
 211         return;
 212 }
 213
 214 struct ofd_seq *ofd_seq_load(const struct lu_env *env, struct ofd_device *ofd,
 215                              obd_seq seq)
 216 {
 217         struct ofd_thread_info  *info = ofd_info(env);
 218         struct ofd_seq          *oseq = NULL;
 219         struct dt_object        *dob;
 220         obd_id                   lastid;
 221         int                      rc;
 222
 223         ENTRY;
 224
 225         /* if seq is already initialized */
 226         oseq = ofd_seq_get(ofd, seq);
 227         if (oseq != NULL)
 228                 RETURN(oseq);
 229
 230         OBD_ALLOC_PTR(oseq);
 231         if (oseq == NULL)
 232                 RETURN(ERR_PTR(-ENOMEM));
 233
 234         lu_last_id_fid(&info->fti_fid, seq);
 235         memset(&info->fti_attr, 0, sizeof(info->fti_attr));
 236         info->fti_attr.la_valid = LA_MODE;
 237         info->fti_attr.la_mode = S_IFREG |  S_IRUGO | S_IWUSR;
 238         info->fti_dof.dof_type = dt_mode_to_dft(S_IFREG);
 239
 240         /* create object tracking per-seq last created
 241          * id to be used by orphan recovery mechanism */
 242         dob = dt_find_or_create(env, ofd->ofd_osd, &info->fti_fid,
 243                                 &info->fti_dof, &info->fti_attr);
 244         if (IS_ERR(dob)) {
 245                 OBD_FREE_PTR(oseq);
 246                 RETURN((void *)dob);
 247         }
 248
 249         oseq->os_lastid_obj = dob;
 250
 251         CFS_INIT_LIST_HEAD(&oseq->os_list);
 252         mutex_init(&oseq->os_create_lock);
 253         spin_lock_init(&oseq->os_last_oid_lock);
 254         oseq->os_seq = seq;
 255
 256         cfs_atomic_set(&oseq->os_refc, 1);
 257
 258         rc = dt_attr_get(env, dob, &info->fti_attr, BYPASS_CAPA);
 259         if (rc)
 260                 GOTO(cleanup, rc);
 261
 262         if (info->fti_attr.la_size == 0) {
 263                 /* object is just created, initialize last id */
 264                 oseq->os_last_oid = OFD_INIT_OBJID;
 265                 ofd_seq_last_oid_write(env, ofd, oseq);
 266         } else if (info->fti_attr.la_size == sizeof(lastid)) {
 267                 info->fti_off = 0;
 268                 info->fti_buf.lb_buf = &lastid;
 269                 info->fti_buf.lb_len = sizeof(lastid);
 270
 271                 rc = dt_record_read(env, dob, &info->fti_buf, &info->fti_off);
 272                 if (rc) {
 273                         CERROR("%s: can't read last_id: rc = %d\n",
 274                                 ofd_name(ofd), rc);
 275                         GOTO(cleanup, rc);
 276                 }
 277                 oseq->os_last_oid = le64_to_cpu(lastid);
 278         } else {
 279                 CERROR("%s: corrupted size "LPU64" LAST_ID of seq "LPX64"\n",
 280                         ofd_name(ofd), (__u64)info->fti_attr.la_size, seq);
 281                 GOTO(cleanup, rc = -EINVAL);
 282         }
 283
 284         oseq = ofd_seq_add(env, ofd, oseq);
 285         RETURN(oseq);
 286 cleanup:
 287         ofd_seq_put(env, oseq);
 288         return ERR_PTR(rc);
 289 }
 290
 291 /* object sequence management */
 292 int ofd_seqs_init(const struct lu_env *env, struct ofd_device *ofd)
 293 {
 294         rwlock_init(&ofd->ofd_seq_list_lock);
 295         CFS_INIT_LIST_HEAD(&ofd->ofd_seq_list);
 296         ofd->ofd_seq_count = 0;
 297         return 0;
 298 }
 299
 300 int ofd_clients_data_init(const struct lu_env *env, struct ofd_device *ofd,
 301                           unsigned long fsize)
 302 {
 303         struct obd_device               *obd = ofd_obd(ofd);
 304         struct lr_server_data           *lsd = &ofd->ofd_lut.lut_lsd;
 305         struct lsd_client_data          *lcd = NULL;
 306         struct filter_export_data       *fed;
 307         int                              cl_idx;
 308         int                              rc = 0;
 309         loff_t                           off = lsd->lsd_client_start;
 310
 311         CLASSERT(offsetof(struct lsd_client_data, lcd_padding) +
 312                  sizeof(lcd->lcd_padding) == LR_CLIENT_SIZE);
 313
 314         OBD_ALLOC_PTR(lcd);
 315         if (lcd == NULL)
 316                 RETURN(-ENOMEM);
 317
 318         for (cl_idx = 0; off < fsize; cl_idx++) {
 319                 struct obd_export       *exp;
 320                 __u64                    last_rcvd;
 321
 322                 /* Don't assume off is incremented properly by
 323                  * fsfilt_read_record(), in case sizeof(*lcd)
 324                  * isn't the same as fsd->lsd_client_size.  */
 325                 off = lsd->lsd_client_start + cl_idx * lsd->lsd_client_size;
 326                 rc = tgt_client_data_read(env, &ofd->ofd_lut, lcd, &off, cl_idx);
 327                 if (rc) {
 328                         CERROR("%s: error reading FILT %s idx %d off %llu: "
 329                                "rc = %d\n", ofd_name(ofd), LAST_RCVD, cl_idx,
 330                                off, rc);
 331                         rc = 0;
 332                         break; /* read error shouldn't cause startup to fail */
 333                 }
 334
 335                 if (lcd->lcd_uuid[0] == '\0') {
 336                         CDEBUG(D_INFO, "skipping zeroed client at offset %d\n",
 337                                cl_idx);
 338                         continue;
 339                 }
 340
 341                 last_rcvd = lcd->lcd_last_transno;
 342
 343                 /* These exports are cleaned up by ofd_disconnect(), so they
 344                  * need to be set up like real exports as ofd_connect() does.
 345                  */
 346                 exp = class_new_export(obd, (struct obd_uuid *)lcd->lcd_uuid);
 347
 348                 CDEBUG(D_HA, "RCVRNG CLIENT uuid: %s idx: %d lr: "LPU64
 349                        " srv lr: "LPU64"\n", lcd->lcd_uuid, cl_idx,
 350                        last_rcvd, lsd->lsd_last_transno);
 351
 352                 if (IS_ERR(exp)) {
 353                         if (PTR_ERR(exp) == -EALREADY) {
 354                                 /* export already exists, zero out this one */
 355                                 CERROR("%s: Duplicate export %s!\n",
 356                                        ofd_name(ofd), lcd->lcd_uuid);
 357                                 continue;
 358                         }
 359                         GOTO(err_out, rc = PTR_ERR(exp));
 360                 }
 361
 362                 fed = &exp->exp_filter_data;
 363                 *fed->fed_ted.ted_lcd = *lcd;
 364
 365                 rc = tgt_client_add(env, exp, cl_idx);
 366                 LASSERTF(rc == 0, "rc = %d\n", rc); /* can't fail existing */
 367                 /* VBR: set export last committed version */
 368                 exp->exp_last_committed = last_rcvd;
 369                 spin_lock(&exp->exp_lock);
 370                 exp->exp_connecting = 0;
 371                 exp->exp_in_recovery = 0;
 372                 spin_unlock(&exp->exp_lock);
 373                 obd->obd_max_recoverable_clients++;
 374                 class_export_put(exp);
 375
 376                 /* Need to check last_rcvd even for duplicated exports. */
 377                 CDEBUG(D_OTHER, "client at idx %d has last_rcvd = "LPU64"\n",
 378                        cl_idx, last_rcvd);
 379
 380                 spin_lock(&ofd->ofd_lut.lut_translock);
 381                 if (last_rcvd > lsd->lsd_last_transno)
 382                         lsd->lsd_last_transno = last_rcvd;
 383                 spin_unlock(&ofd->ofd_lut.lut_translock);
 384         }
 385
 386 err_out:
 387         OBD_FREE_PTR(lcd);
 388         RETURN(rc);
 389 }
 390
 391 int ofd_server_data_init(const struct lu_env *env, struct ofd_device *ofd)
 392 {
 393         struct ofd_thread_info  *info = ofd_info(env);
 394         struct lr_server_data   *lsd = &ofd->ofd_lut.lut_lsd;
 395         struct obd_device       *obd = ofd_obd(ofd);
 396         unsigned long           last_rcvd_size;
 397         __u32                   index;
 398         int                     rc;
 399
 400         rc = dt_attr_get(env, ofd->ofd_lut.lut_last_rcvd, &info->fti_attr,
 401                          BYPASS_CAPA);
 402         if (rc)
 403                 RETURN(rc);
 404
 405         last_rcvd_size = (unsigned long)info->fti_attr.la_size;
 406
 407         /* ensure padding in the struct is the correct size */
 408         CLASSERT (offsetof(struct lr_server_data, lsd_padding) +
 409                   sizeof(lsd->lsd_padding) == LR_SERVER_SIZE);
 410
 411         rc = server_name2index(obd->obd_name, &index, NULL);
 412         if (rc < 0) {
 413                 CERROR("%s: Can not get index from obd_name: rc = %d\n",
 414                        obd->obd_name, rc);
 415                 RETURN(rc);
 416         }
 417
 418         if (last_rcvd_size == 0) {
 419                 LCONSOLE_WARN("%s: new disk, initializing\n", obd->obd_name);
 420
 421                 memcpy(lsd->lsd_uuid, obd->obd_uuid.uuid,
 422                        sizeof(lsd->lsd_uuid));
 423                 lsd->lsd_last_transno = 0;
 424                 lsd->lsd_mount_count = 0;
 425                 lsd->lsd_server_size = LR_SERVER_SIZE;
 426                 lsd->lsd_client_start = LR_CLIENT_START;
 427                 lsd->lsd_client_size = LR_CLIENT_SIZE;
 428                 lsd->lsd_subdir_count = FILTER_SUBDIR_COUNT;
 429                 lsd->lsd_feature_incompat = OBD_INCOMPAT_OST;
 430                 lsd->lsd_osd_index = index;
 431         } else {
 432                 rc = tgt_server_data_read(env, &ofd->ofd_lut);
 433                 if (rc) {
 434                         CDEBUG(D_INODE,"OBD ofd: error reading %s: rc %d\n",
 435                                LAST_RCVD, rc);
 436                         GOTO(err_fsd, rc);
 437                 }
 438                 if (strcmp((char *)lsd->lsd_uuid,
 439                            (char *)obd->obd_uuid.uuid)) {
 440                         LCONSOLE_ERROR("Trying to start OBD %s using the wrong"
 441                                        " disk %s. Were the /dev/ assignments "
 442                                        "rearranged?\n",
 443                                        obd->obd_uuid.uuid, lsd->lsd_uuid);
 444                         GOTO(err_fsd, rc = -EINVAL);
 445                 }
 446
 447                 if (lsd->lsd_osd_index == 0) {
 448                         lsd->lsd_osd_index = index;
 449                 } else if (lsd->lsd_osd_index != index) {
 450                         LCONSOLE_ERROR("%s: index %d in last rcvd is different"
 451                                        " with the index %d in config log."
 452                                        " It might be disk corruption!\n",
 453                                        obd->obd_name, lsd->lsd_osd_index,
 454                                        index);
 455                         GOTO(err_fsd, rc = -EINVAL);
 456                 }
 457         }
 458
 459         lsd->lsd_mount_count++;
 460         obd->u.obt.obt_mount_count = lsd->lsd_mount_count;
 461         obd->u.obt.obt_instance = (__u32)obd->u.obt.obt_mount_count;
 462         ofd->ofd_subdir_count = lsd->lsd_subdir_count;
 463
 464         if (lsd->lsd_feature_incompat & ~OFD_INCOMPAT_SUPP) {
 465                 CERROR("%s: unsupported incompat filesystem feature(s) %x\n",
 466                        obd->obd_name,
 467                        lsd->lsd_feature_incompat & ~OFD_INCOMPAT_SUPP);
 468                 GOTO(err_fsd, rc = -EINVAL);
 469         }
 470         if (lsd->lsd_feature_rocompat & ~OFD_ROCOMPAT_SUPP) {
 471                 CERROR("%s: unsupported read-only filesystem feature(s) %x\n",
 472                        obd->obd_name,
 473                        lsd->lsd_feature_rocompat & ~OFD_ROCOMPAT_SUPP);
 474                 /* Do something like remount filesystem read-only */
 475                 GOTO(err_fsd, rc = -EINVAL);
 476         }
 477
 478         CDEBUG(D_INODE, "%s: server last_transno : "LPU64"\n",
 479                obd->obd_name, lsd->lsd_last_transno);
 480         CDEBUG(D_INODE, "%s: server mount_count: "LPU64"\n",
 481                obd->obd_name, lsd->lsd_mount_count);
 482         CDEBUG(D_INODE, "%s: server data size: %u\n",
 483                obd->obd_name, lsd->lsd_server_size);
 484         CDEBUG(D_INODE, "%s: per-client data start: %u\n",
 485                obd->obd_name, lsd->lsd_client_start);
 486         CDEBUG(D_INODE, "%s: per-client data size: %u\n",
 487                obd->obd_name, lsd->lsd_client_size);
 488         CDEBUG(D_INODE, "%s: server subdir_count: %u\n",
 489                obd->obd_name, lsd->lsd_subdir_count);
 490         CDEBUG(D_INODE, "%s: last_rcvd clients: %lu\n", obd->obd_name,
 491                last_rcvd_size <= lsd->lsd_client_start ? 0 :
 492                (last_rcvd_size - lsd->lsd_client_start) /
 493                lsd->lsd_client_size);
 494
 495         if (!obd->obd_replayable)
 496                 CWARN("%s: recovery support OFF\n", obd->obd_name);
 497
 498         rc = ofd_clients_data_init(env, ofd, last_rcvd_size);
 499
 500         spin_lock(&ofd->ofd_lut.lut_translock);
 501         obd->obd_last_committed = lsd->lsd_last_transno;
 502         ofd->ofd_lut.lut_last_transno = lsd->lsd_last_transno;
 503         spin_unlock(&ofd->ofd_lut.lut_translock);
 504
 505         /* save it, so mount count and last_transno is current */
 506         rc = tgt_server_data_update(env, &ofd->ofd_lut, 0);
 507         if (rc)
 508                 GOTO(err_fsd, rc);
 509
 510         RETURN(0);
 511
 512 err_fsd:
 513         class_disconnect_exports(obd);
 514         RETURN(rc);
 515 }
 516
 517 int ofd_fs_setup(const struct lu_env *env, struct ofd_device *ofd,
 518                  struct obd_device *obd)
 519 {
 520         struct ofd_thread_info  *info = ofd_info(env);
 521         struct dt_object        *fo;
 522         int                      rc = 0;
 523
 524         ENTRY;
 525
 526         if (OBD_FAIL_CHECK(OBD_FAIL_MDS_FS_SETUP))
 527                 RETURN (-ENOENT);
 528
 529         /* prepare transactions callbacks */
 530         ofd->ofd_txn_cb.dtc_txn_start = NULL;
 531         ofd->ofd_txn_cb.dtc_txn_stop = ofd_txn_stop_cb;
 532         ofd->ofd_txn_cb.dtc_txn_commit = NULL;
 533         ofd->ofd_txn_cb.dtc_cookie = ofd;
 534         ofd->ofd_txn_cb.dtc_tag = LCT_DT_THREAD;
 535         CFS_INIT_LIST_HEAD(&ofd->ofd_txn_cb.dtc_linkage);
 536
 537         dt_txn_callback_add(ofd->ofd_osd, &ofd->ofd_txn_cb);
 538
 539         rc = ofd_server_data_init(env, ofd);
 540         if (rc)
 541                 GOTO(out, rc);
 542
 543         lu_local_obj_fid(&info->fti_fid, OFD_HEALTH_CHECK_OID);
 544         memset(&info->fti_attr, 0, sizeof(info->fti_attr));
 545         info->fti_attr.la_valid = LA_MODE;
 546         info->fti_attr.la_mode = S_IFREG | S_IRUGO | S_IWUSR;
 547         info->fti_dof.dof_type = dt_mode_to_dft(S_IFREG);
 548
 549         fo = dt_find_or_create(env, ofd->ofd_osd, &info->fti_fid,
 550                                &info->fti_dof, &info->fti_attr);
 551         if (IS_ERR(fo))
 552                 GOTO(out, rc = PTR_ERR(fo));
 553
 554         ofd->ofd_health_check_file = fo;
 555
 556         rc = ofd_seqs_init(env, ofd);
 557         if (rc)
 558                 GOTO(out_hc, rc);
 559
 560         RETURN(0);
 561 out_hc:
 562         lu_object_put(env, &ofd->ofd_health_check_file->do_lu);
 563 out:
 564         dt_txn_callback_del(ofd->ofd_osd, &ofd->ofd_txn_cb);
 565         return rc;
 566 }
 567
 568 void ofd_fs_cleanup(const struct lu_env *env, struct ofd_device *ofd)
 569 {
 570         int i;
 571
 572         ENTRY;
 573
 574         ofd_info_init(env, NULL);
 575
 576         ofd_seqs_fini(env, ofd);
 577
 578         i = dt_sync(env, ofd->ofd_osd);
 579         if (i)
 580                 CERROR("can't sync: %d\n", i);
 581
 582         /* Remove transaction callback */
 583         dt_txn_callback_del(ofd->ofd_osd, &ofd->ofd_txn_cb);
 584
 585         if (ofd->ofd_health_check_file) {
 586                 lu_object_put(env, &ofd->ofd_health_check_file->do_lu);
 587                 ofd->ofd_health_check_file = NULL;
 588         }
 589
 590         EXIT;
 591 }
 592