lustre/ofd/ofd_obd.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, 2013, 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_obd.c
  37  *
  38  * Author: Andreas Dilger <adilger@whamcloud.com>
  39  * Author: Alex Zhuravlev <bzzz@whamcloud.com>
  40  * Author: Mike Pershin <tappro@whamcloud.com>
  41  */
  42
  43 #define DEBUG_SUBSYSTEM S_FILTER
  44
  45 #include <lustre/lustre_idl.h>
  46 #include "ofd_internal.h"
  47 #include <obd_cksum.h>
  48 #include <lustre_ioctl.h>
  49 #include <lustre_quota.h>
  50 #include <lustre_lfsck.h>
  51
  52 static int ofd_export_stats_init(struct ofd_device *ofd,
  53                                  struct obd_export *exp, void *client_nid)
  54 {
  55         struct obd_device       *obd = ofd_obd(ofd);
  56         struct nid_stat         *stats;
  57         int                      num_stats;
  58         int                      rc, newnid = 0;
  59
  60         ENTRY;
  61
  62         LASSERT(obd->obd_uses_nid_stats);
  63
  64         if (obd_uuid_equals(&exp->exp_client_uuid, &obd->obd_uuid))
  65                 /* Self-export gets no proc entry */
  66                 RETURN(0);
  67
  68         rc = lprocfs_exp_setup(exp, client_nid, &newnid);
  69         if (rc) {
  70                 /* Mask error for already created
  71                  * /proc entries */
  72                 if (rc == -EALREADY)
  73                         rc = 0;
  74                 RETURN(rc);
  75         }
  76
  77         if (newnid == 0)
  78                 RETURN(0);
  79
  80         stats = exp->exp_nid_stats;
  81         LASSERT(stats != NULL);
  82
  83         num_stats = NUM_OBD_STATS + LPROC_OFD_STATS_LAST;
  84
  85         stats->nid_stats = lprocfs_alloc_stats(num_stats,
  86                                                LPROCFS_STATS_FLAG_NOPERCPU);
  87         if (stats->nid_stats == NULL)
  88                 return -ENOMEM;
  89
  90         lprocfs_init_ops_stats(LPROC_OFD_STATS_LAST, stats->nid_stats);
  91         ofd_stats_counter_init(stats->nid_stats);
  92         rc = lprocfs_register_stats(stats->nid_proc, "stats",
  93                                     stats->nid_stats);
  94         if (rc)
  95                 GOTO(clean, rc);
  96
  97         rc = lprocfs_nid_ldlm_stats_init(stats);
  98         if (rc) {
  99                 lprocfs_free_stats(&stats->nid_stats);
 100                 GOTO(clean, rc);
 101         }
 102
 103         RETURN(0);
 104 clean:
 105         return rc;
 106 }
 107
 108 static int ofd_parse_connect_data(const struct lu_env *env,
 109                                   struct obd_export *exp,
 110                                   struct obd_connect_data *data,
 111                                   bool new_connection)
 112 {
 113         struct ofd_device                *ofd = ofd_exp(exp);
 114         struct filter_export_data        *fed = &exp->exp_filter_data;
 115
 116         if (!data)
 117                 RETURN(0);
 118
 119         CDEBUG(D_RPCTRACE, "%s: cli %s/%p ocd_connect_flags: "LPX64
 120                " ocd_version: %x ocd_grant: %d ocd_index: %u"
 121                " ocd_group %u\n",
 122                exp->exp_obd->obd_name, exp->exp_client_uuid.uuid, exp,
 123                data->ocd_connect_flags, data->ocd_version,
 124                data->ocd_grant, data->ocd_index, data->ocd_group);
 125
 126         if (fed->fed_group != 0 && fed->fed_group != data->ocd_group) {
 127                 CWARN("!!! This export (nid %s) used object group %d "
 128                       "earlier; now it's trying to use group %d!  This could "
 129                       "be a bug in the MDS. Please report to "
 130                       "http://bugs.whamcloud.com/\n",
 131                       obd_export_nid2str(exp), fed->fed_group,
 132                       data->ocd_group);
 133                 RETURN(-EPROTO);
 134         }
 135         fed->fed_group = data->ocd_group;
 136
 137         data->ocd_connect_flags &= OST_CONNECT_SUPPORTED;
 138         data->ocd_version = LUSTRE_VERSION_CODE;
 139
 140         /* Kindly make sure the SKIP_ORPHAN flag is from MDS. */
 141         if (data->ocd_connect_flags & OBD_CONNECT_MDS)
 142                 CDEBUG(D_HA, "%s: Received MDS connection for group %u\n",
 143                        exp->exp_obd->obd_name, data->ocd_group);
 144         else if (data->ocd_connect_flags & OBD_CONNECT_SKIP_ORPHAN)
 145                 RETURN(-EPROTO);
 146
 147         if (ofd_grant_param_supp(exp)) {
 148                 exp->exp_filter_data.fed_pagesize = data->ocd_blocksize;
 149                 /* ocd_{blocksize,inodespace} are log2 values */
 150                 data->ocd_blocksize  = ofd->ofd_blockbits;
 151                 data->ocd_inodespace = ofd->ofd_dt_conf.ddp_inodespace;
 152                 /* ocd_grant_extent is in 1K blocks */
 153                 data->ocd_grant_extent = ofd->ofd_dt_conf.ddp_grant_frag >> 10;
 154         }
 155
 156         if (data->ocd_connect_flags & OBD_CONNECT_GRANT)
 157                 data->ocd_grant = ofd_grant_connect(env, exp, data->ocd_grant,
 158                                                     new_connection);
 159
 160         if (data->ocd_connect_flags & OBD_CONNECT_INDEX) {
 161                 struct lr_server_data *lsd = &ofd->ofd_lut.lut_lsd;
 162                 int                    index = lsd->lsd_osd_index;
 163
 164                 if (index != data->ocd_index) {
 165                         LCONSOLE_ERROR_MSG(0x136, "Connection from %s to index"
 166                                            " %u doesn't match actual OST index"
 167                                            " %u in last_rcvd file, bad "
 168                                            "configuration?\n",
 169                                            obd_export_nid2str(exp), index,
 170                                            data->ocd_index);
 171                         RETURN(-EBADF);
 172                 }
 173                 if (!(lsd->lsd_feature_compat & OBD_COMPAT_OST)) {
 174                         /* this will only happen on the first connect */
 175                         lsd->lsd_feature_compat |= OBD_COMPAT_OST;
 176                         /* sync is not needed here as lut_client_add will
 177                          * set exp_need_sync flag */
 178                         tgt_server_data_update(env, &ofd->ofd_lut, 0);
 179                 }
 180         }
 181         if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_SIZE)) {
 182                 data->ocd_brw_size = 65536;
 183         } else if (data->ocd_connect_flags & OBD_CONNECT_BRW_SIZE) {
 184                 data->ocd_brw_size = min(data->ocd_brw_size,
 185                                          (__u32)DT_MAX_BRW_SIZE);
 186                 if (data->ocd_brw_size == 0) {
 187                         CERROR("%s: cli %s/%p ocd_connect_flags: "LPX64
 188                                " ocd_version: %x ocd_grant: %d ocd_index: %u "
 189                                "ocd_brw_size is unexpectedly zero, "
 190                                "network data corruption?"
 191                                "Refusing connection of this client\n",
 192                                exp->exp_obd->obd_name,
 193                                exp->exp_client_uuid.uuid,
 194                                exp, data->ocd_connect_flags, data->ocd_version,
 195                                data->ocd_grant, data->ocd_index);
 196                         RETURN(-EPROTO);
 197                 }
 198         }
 199
 200         if (data->ocd_connect_flags & OBD_CONNECT_CKSUM) {
 201                 __u32 cksum_types = data->ocd_cksum_types;
 202
 203                 /* The client set in ocd_cksum_types the checksum types it
 204                  * supports. We have to mask off the algorithms that we don't
 205                  * support */
 206                 data->ocd_cksum_types &= cksum_types_supported_server();
 207
 208                 if (unlikely(data->ocd_cksum_types == 0)) {
 209                         CERROR("%s: Connect with checksum support but no "
 210                                "ocd_cksum_types is set\n",
 211                                exp->exp_obd->obd_name);
 212                         RETURN(-EPROTO);
 213                 }
 214
 215                 CDEBUG(D_RPCTRACE, "%s: cli %s supports cksum type %x, return "
 216                        "%x\n", exp->exp_obd->obd_name, obd_export_nid2str(exp),
 217                        cksum_types, data->ocd_cksum_types);
 218         } else {
 219                 /* This client does not support OBD_CONNECT_CKSUM
 220                  * fall back to CRC32 */
 221                 CDEBUG(D_RPCTRACE, "%s: cli %s does not support "
 222                        "OBD_CONNECT_CKSUM, CRC32 will be used\n",
 223                        exp->exp_obd->obd_name, obd_export_nid2str(exp));
 224         }
 225
 226         if (data->ocd_connect_flags & OBD_CONNECT_MAXBYTES)
 227                 data->ocd_maxbytes = ofd->ofd_dt_conf.ddp_maxbytes;
 228
 229         if (OCD_HAS_FLAG(data, PINGLESS)) {
 230                 if (ptlrpc_pinger_suppress_pings()) {
 231                         spin_lock(&exp->exp_obd->obd_dev_lock);
 232                         list_del_init(&exp->exp_obd_chain_timed);
 233                         spin_unlock(&exp->exp_obd->obd_dev_lock);
 234                 } else {
 235                         data->ocd_connect_flags &= ~OBD_CONNECT_PINGLESS;
 236                 }
 237         }
 238
 239         RETURN(0);
 240 }
 241
 242 static int ofd_obd_reconnect(const struct lu_env *env, struct obd_export *exp,
 243                              struct obd_device *obd, struct obd_uuid *cluuid,
 244                              struct obd_connect_data *data, void *localdata)
 245 {
 246         struct ofd_device       *ofd;
 247         int                      rc;
 248
 249         ENTRY;
 250
 251         if (exp == NULL || obd == NULL || cluuid == NULL)
 252                 RETURN(-EINVAL);
 253
 254         ofd = ofd_dev(obd->obd_lu_dev);
 255
 256         rc = ofd_parse_connect_data(env, exp, data, false);
 257         if (rc == 0)
 258                 ofd_export_stats_init(ofd, exp, localdata);
 259
 260         RETURN(rc);
 261 }
 262
 263 static int ofd_obd_connect(const struct lu_env *env, struct obd_export **_exp,
 264                            struct obd_device *obd, struct obd_uuid *cluuid,
 265                            struct obd_connect_data *data, void *localdata)
 266 {
 267         struct obd_export       *exp;
 268         struct ofd_device       *ofd;
 269         struct lustre_handle     conn = { 0 };
 270         int                      rc;
 271         ENTRY;
 272
 273         if (_exp == NULL || obd == NULL || cluuid == NULL)
 274                 RETURN(-EINVAL);
 275
 276         ofd = ofd_dev(obd->obd_lu_dev);
 277
 278         rc = class_connect(&conn, obd, cluuid);
 279         if (rc)
 280                 RETURN(rc);
 281
 282         exp = class_conn2export(&conn);
 283         LASSERT(exp != NULL);
 284
 285         rc = ofd_parse_connect_data(env, exp, data, true);
 286         if (rc)
 287                 GOTO(out, rc);
 288
 289         if (obd->obd_replayable) {
 290                 struct tg_export_data *ted = &exp->exp_target_data;
 291
 292                 memcpy(ted->ted_lcd->lcd_uuid, cluuid,
 293                        sizeof(ted->ted_lcd->lcd_uuid));
 294                 rc = tgt_client_new(env, exp);
 295                 if (rc != 0)
 296                         GOTO(out, rc);
 297                 ofd_export_stats_init(ofd, exp, localdata);
 298         }
 299
 300         CDEBUG(D_HA, "%s: get connection from MDS %d\n", obd->obd_name,
 301                data ? data->ocd_group : -1);
 302
 303 out:
 304         if (rc != 0) {
 305                 class_disconnect(exp);
 306                 *_exp = NULL;
 307         } else {
 308                 *_exp = exp;
 309         }
 310         RETURN(rc);
 311 }
 312
 313 int ofd_obd_disconnect(struct obd_export *exp)
 314 {
 315         struct ofd_device       *ofd = ofd_dev(exp->exp_obd->obd_lu_dev);
 316         struct lu_env            env;
 317         int                      rc;
 318
 319         ENTRY;
 320
 321         LASSERT(exp);
 322         class_export_get(exp);
 323
 324         if (!(exp->exp_flags & OBD_OPT_FORCE))
 325                 ofd_grant_sanity_check(ofd_obd(ofd), __FUNCTION__);
 326
 327         rc = server_disconnect_export(exp);
 328
 329         ofd_grant_discard(exp);
 330
 331         /* Do not erase record for recoverable client. */
 332         if (exp->exp_obd->obd_replayable &&
 333             (!exp->exp_obd->obd_fail || exp->exp_failed)) {
 334                 rc = lu_env_init(&env, LCT_DT_THREAD);
 335                 if (rc)
 336                         GOTO(out, rc);
 337
 338                 tgt_client_del(&env, exp);
 339                 lu_env_fini(&env);
 340         }
 341 out:
 342         class_export_put(exp);
 343         RETURN(rc);
 344 }
 345
 346 static int ofd_init_export(struct obd_export *exp)
 347 {
 348         int rc;
 349
 350         spin_lock_init(&exp->exp_filter_data.fed_lock);
 351         CFS_INIT_LIST_HEAD(&exp->exp_filter_data.fed_mod_list);
 352         atomic_set(&exp->exp_filter_data.fed_soft_sync_count, 0);
 353         spin_lock(&exp->exp_lock);
 354         exp->exp_connecting = 1;
 355         spin_unlock(&exp->exp_lock);
 356
 357         /* self-export doesn't need client data and ldlm initialization */
 358         if (unlikely(obd_uuid_equals(&exp->exp_obd->obd_uuid,
 359                                      &exp->exp_client_uuid)))
 360                 return 0;
 361
 362         rc = tgt_client_alloc(exp);
 363         if (rc == 0)
 364                 ldlm_init_export(exp);
 365         if (rc)
 366                 CERROR("%s: Can't initialize export: rc %d\n",
 367                        exp->exp_obd->obd_name, rc);
 368         return rc;
 369 }
 370
 371 static int ofd_destroy_export(struct obd_export *exp)
 372 {
 373         struct ofd_device *ofd = ofd_dev(exp->exp_obd->obd_lu_dev);
 374
 375         if (exp->exp_filter_data.fed_pending)
 376                 CERROR("%s: cli %s/%p has %lu pending on destroyed export"
 377                        "\n", exp->exp_obd->obd_name, exp->exp_client_uuid.uuid,
 378                        exp, exp->exp_filter_data.fed_pending);
 379
 380         target_destroy_export(exp);
 381
 382         if (unlikely(obd_uuid_equals(&exp->exp_obd->obd_uuid,
 383                                      &exp->exp_client_uuid)))
 384                 return 0;
 385
 386         ldlm_destroy_export(exp);
 387         tgt_client_free(exp);
 388
 389         ofd_fmd_cleanup(exp);
 390
 391         /*
 392          * discard grants once we're sure no more
 393          * interaction with the client is possible
 394          */
 395         ofd_grant_discard(exp);
 396         ofd_fmd_cleanup(exp);
 397
 398         if (exp_connect_flags(exp) & OBD_CONNECT_GRANT_SHRINK) {
 399                 if (ofd->ofd_tot_granted_clients > 0)
 400                         ofd->ofd_tot_granted_clients --;
 401         }
 402
 403         if (!(exp->exp_flags & OBD_OPT_FORCE))
 404                 ofd_grant_sanity_check(exp->exp_obd, __FUNCTION__);
 405
 406         LASSERT(cfs_list_empty(&exp->exp_filter_data.fed_mod_list));
 407         return 0;
 408 }
 409
 410 int ofd_postrecov(const struct lu_env *env, struct ofd_device *ofd)
 411 {
 412         struct lu_device *ldev = &ofd->ofd_dt_dev.dd_lu_dev;
 413         struct lfsck_start_param lsp;
 414         int rc;
 415
 416         CDEBUG(D_HA, "%s: recovery is over\n", ofd_obd(ofd)->obd_name);
 417
 418         lsp.lsp_start = NULL;
 419         lsp.lsp_index_valid = 0;
 420         rc = lfsck_start(env, ofd->ofd_osd, &lsp);
 421         if (rc != 0 && rc != -EALREADY)
 422                 CWARN("%s: auto trigger paused LFSCK failed: rc = %d\n",
 423                       ofd_obd(ofd)->obd_name, rc);
 424
 425         return ldev->ld_ops->ldo_recovery_complete(env, ldev);
 426 }
 427
 428 int ofd_obd_postrecov(struct obd_device *obd)
 429 {
 430         struct lu_env            env;
 431         struct lu_device        *ldev = obd->obd_lu_dev;
 432         int                      rc;
 433
 434         ENTRY;
 435
 436         rc = lu_env_init(&env, LCT_DT_THREAD);
 437         if (rc)
 438                 RETURN(rc);
 439         ofd_info_init(&env, obd->obd_self_export);
 440
 441         rc = ofd_postrecov(&env, ofd_dev(ldev));
 442
 443         lu_env_fini(&env);
 444         RETURN(rc);
 445 }
 446
 447 /* This is not called from request handler, check ofd_set_info_hdl() instead
 448  * this OBD functions is only used by class_notify_sptlrpc_conf() locally
 449  * by direct obd_set_info_async() call */
 450 static int ofd_set_info_async(const struct lu_env *env, struct obd_export *exp,
 451                               __u32 keylen, void *key, __u32 vallen, void *val,
 452                               struct ptlrpc_request_set *set)
 453 {
 454         int rc = 0;
 455
 456         ENTRY;
 457
 458         if (exp->exp_obd == NULL) {
 459                 CDEBUG(D_IOCTL, "invalid export %p\n", exp);
 460                 RETURN(-EINVAL);
 461         }
 462
 463         if (KEY_IS(KEY_SPTLRPC_CONF)) {
 464                 rc = tgt_adapt_sptlrpc_conf(class_exp2tgt(exp), 0);
 465         } else {
 466                 CERROR("%s: Unsupported key %s\n",
 467                        exp->exp_obd->obd_name, (char*)key);
 468                 rc = -EOPNOTSUPP;
 469         }
 470         RETURN(rc);
 471 }
 472
 473 /* used by nrs_orr_range_fill_physical() in ptlrpc, see LU-3239 */
 474 static int ofd_get_info(const struct lu_env *env, struct obd_export *exp,
 475                         __u32 keylen, void *key, __u32 *vallen, void *val,
 476                         struct lov_stripe_md *lsm)
 477 {
 478         struct ofd_thread_info          *info;
 479         struct ofd_device               *ofd;
 480         struct ll_fiemap_info_key       *fm_key = key;
 481         struct ll_user_fiemap           *fiemap = val;
 482         int                              rc = 0;
 483
 484         ENTRY;
 485
 486         if (exp->exp_obd == NULL) {
 487                 CDEBUG(D_IOCTL, "invalid client export %p\n", exp);
 488                 RETURN(-EINVAL);
 489         }
 490
 491         ofd = ofd_exp(exp);
 492
 493         if (KEY_IS(KEY_FIEMAP)) {
 494                 info = ofd_info_init(env, exp);
 495
 496                 rc = ostid_to_fid(&info->fti_fid, &fm_key->oa.o_oi,
 497                                   ofd->ofd_lut.lut_lsd.lsd_osd_index);
 498                 if (rc != 0)
 499                         RETURN(rc);
 500
 501                 rc = ofd_fiemap_get(env, ofd, &info->fti_fid, fiemap);
 502         } else {
 503                 CERROR("%s: not supported key %s\n", ofd_name(ofd), (char*)key);
 504                 rc = -EOPNOTSUPP;
 505         }
 506
 507         RETURN(rc);
 508 }
 509
 510 /** helper function for statfs, also used by grant code */
 511 int ofd_statfs_internal(const struct lu_env *env, struct ofd_device *ofd,
 512                         struct obd_statfs *osfs, __u64 max_age, int *from_cache)
 513 {
 514         int rc = 0;
 515         ENTRY;
 516
 517         down_read(&ofd->ofd_lastid_rwsem);
 518         /* Currently, for safe, we do not distinguish which LAST_ID is broken,
 519          * we may do that in the future.
 520          * Return -ENOSPC until the LAST_ID rebuilt. */
 521         if (unlikely(ofd->ofd_lastid_rebuilding))
 522                 GOTO(out, rc = -ENOSPC);
 523
 524         spin_lock(&ofd->ofd_osfs_lock);
 525         if (cfs_time_before_64(ofd->ofd_osfs_age, max_age) || max_age == 0) {
 526                 obd_size unstable;
 527
 528                 /* statfs data are too old, get up-to-date one.
 529                  * we must be cautious here since multiple threads might be
 530                  * willing to update statfs data concurrently and we must
 531                  * grant that cached statfs data are always consistent */
 532
 533                 if (ofd->ofd_statfs_inflight == 0)
 534                         /* clear inflight counter if no users, although it would
 535                          * take a while to overflow this 64-bit counter ... */
 536                         ofd->ofd_osfs_inflight = 0;
 537                 /* notify ofd_grant_commit() that we want to track writes
 538                  * completed as of now */
 539                 ofd->ofd_statfs_inflight++;
 540                 /* record value of inflight counter before running statfs to
 541                  * compute the diff once statfs is completed */
 542                 unstable = ofd->ofd_osfs_inflight;
 543                 spin_unlock(&ofd->ofd_osfs_lock);
 544
 545                 /* statfs can sleep ... hopefully not for too long since we can
 546                  * call it fairly often as space fills up */
 547                 rc = dt_statfs(env, ofd->ofd_osd, osfs);
 548                 if (unlikely(rc))
 549                         GOTO(out, rc);
 550
 551                 spin_lock(&ofd->ofd_grant_lock);
 552                 spin_lock(&ofd->ofd_osfs_lock);
 553                 /* calculate how much space was written while we released the
 554                  * ofd_osfs_lock */
 555                 unstable = ofd->ofd_osfs_inflight - unstable;
 556                 ofd->ofd_osfs_unstable = 0;
 557                 if (unstable) {
 558                         /* some writes completed while we were running statfs
 559                          * w/o the ofd_osfs_lock. Those ones got added to
 560                          * the cached statfs data that we are about to crunch.
 561                          * Take them into account in the new statfs data */
 562                         osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
 563                                                unstable >> ofd->ofd_blockbits);
 564                         /* However, we don't really know if those writes got
 565                          * accounted in the statfs call, so tell
 566                          * ofd_grant_space_left() there is some uncertainty
 567                          * on the accounting of those writes.
 568                          * The purpose is to prevent spurious error messages in
 569                          * ofd_grant_space_left() since those writes might be
 570                          * accounted twice. */
 571                         ofd->ofd_osfs_unstable += unstable;
 572                 }
 573                 /* similarly, there is some uncertainty on write requests
 574                  * between prepare & commit */
 575                 ofd->ofd_osfs_unstable += ofd->ofd_tot_pending;
 576                 spin_unlock(&ofd->ofd_grant_lock);
 577
 578                 /* finally udpate cached statfs data */
 579                 ofd->ofd_osfs = *osfs;
 580                 ofd->ofd_osfs_age = cfs_time_current_64();
 581
 582                 ofd->ofd_statfs_inflight--; /* stop tracking */
 583                 if (ofd->ofd_statfs_inflight == 0)
 584                         ofd->ofd_osfs_inflight = 0;
 585                 spin_unlock(&ofd->ofd_osfs_lock);
 586
 587                 if (from_cache)
 588                         *from_cache = 0;
 589         } else {
 590                 /* use cached statfs data */
 591                 *osfs = ofd->ofd_osfs;
 592                 spin_unlock(&ofd->ofd_osfs_lock);
 593                 if (from_cache)
 594                         *from_cache = 1;
 595         }
 596
 597         GOTO(out, rc);
 598
 599 out:
 600         up_read(&ofd->ofd_lastid_rwsem);
 601
 602         return rc;
 603 }
 604
 605 int ofd_statfs(const struct lu_env *env,  struct obd_export *exp,
 606                struct obd_statfs *osfs, __u64 max_age, __u32 flags)
 607 {
 608         struct obd_device       *obd = class_exp2obd(exp);
 609         struct ofd_device       *ofd = ofd_dev(exp->exp_obd->obd_lu_dev);
 610         int                      rc;
 611
 612         ENTRY;
 613
 614         rc = ofd_statfs_internal(env, ofd, osfs, max_age, NULL);
 615         if (unlikely(rc))
 616                 GOTO(out, rc);
 617
 618         /* at least try to account for cached pages.  its still racy and
 619          * might be under-reporting if clients haven't announced their
 620          * caches with brw recently */
 621
 622         CDEBUG(D_SUPER | D_CACHE, "blocks cached "LPU64" granted "LPU64
 623                " pending "LPU64" free "LPU64" avail "LPU64"\n",
 624                ofd->ofd_tot_dirty, ofd->ofd_tot_granted, ofd->ofd_tot_pending,
 625                osfs->os_bfree << ofd->ofd_blockbits,
 626                osfs->os_bavail << ofd->ofd_blockbits);
 627
 628         osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
 629                                  ((ofd->ofd_tot_dirty + ofd->ofd_tot_pending +
 630                                    osfs->os_bsize - 1) >> ofd->ofd_blockbits));
 631
 632         /* The QoS code on the MDS does not care about space reserved for
 633          * precreate, so take it out. */
 634         if (exp_connect_flags(exp) & OBD_CONNECT_MDS) {
 635                 struct filter_export_data *fed;
 636
 637                 fed = &obd->obd_self_export->exp_filter_data;
 638                 osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
 639                                          fed->fed_grant >> ofd->ofd_blockbits);
 640         }
 641
 642         ofd_grant_sanity_check(obd, __FUNCTION__);
 643         CDEBUG(D_CACHE, LPU64" blocks: "LPU64" free, "LPU64" avail; "
 644                LPU64" objects: "LPU64" free; state %x\n",
 645                osfs->os_blocks, osfs->os_bfree, osfs->os_bavail,
 646                osfs->os_files, osfs->os_ffree, osfs->os_state);
 647
 648         if (OBD_FAIL_CHECK_VALUE(OBD_FAIL_OST_ENOINO,
 649                                  ofd->ofd_lut.lut_lsd.lsd_osd_index))
 650                 osfs->os_ffree = 0;
 651
 652         /* OS_STATE_READONLY can be set by OSD already */
 653         if (ofd->ofd_raid_degraded)
 654                 osfs->os_state |= OS_STATE_DEGRADED;
 655
 656         if (obd->obd_self_export != exp && ofd_grant_compat(exp, ofd)) {
 657                 /* clients which don't support OBD_CONNECT_GRANT_PARAM
 658                  * should not see a block size > page size, otherwise
 659                  * cl_lost_grant goes mad. Therefore, we emulate a 4KB (=2^12)
 660                  * block size which is the biggest block size known to work
 661                  * with all client's page size. */
 662                 osfs->os_blocks <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
 663                 osfs->os_bfree  <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
 664                 osfs->os_bavail <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
 665                 osfs->os_bsize    = 1 << COMPAT_BSIZE_SHIFT;
 666         }
 667
 668         if (OBD_FAIL_CHECK_VALUE(OBD_FAIL_OST_ENOSPC,
 669                                  ofd->ofd_lut.lut_lsd.lsd_osd_index))
 670                 osfs->os_bfree = osfs->os_bavail = 2;
 671
 672         EXIT;
 673 out:
 674         return rc;
 675 }
 676
 677 /* needed by echo client only for now, RPC handler uses ofd_setattr_hdl() */
 678 int ofd_echo_setattr(const struct lu_env *env, struct obd_export *exp,
 679                      struct obd_info *oinfo, struct obd_trans_info *oti)
 680 {
 681         struct ofd_thread_info  *info;
 682         struct ofd_device       *ofd = ofd_exp(exp);
 683         struct ldlm_namespace   *ns = ofd->ofd_namespace;
 684         struct ldlm_resource    *res;
 685         struct ofd_object       *fo;
 686         struct obdo             *oa = oinfo->oi_oa;
 687         struct lu_fid           *fid = &oa->o_oi.oi_fid;
 688         struct filter_fid       *ff = NULL;
 689         int                      rc = 0;
 690
 691         ENTRY;
 692
 693         info = ofd_info_init(env, exp);
 694
 695         ost_fid_build_resid(fid, &info->fti_resid);
 696
 697         /* This would be very bad - accidentally truncating a file when
 698          * changing the time or similar - bug 12203. */
 699         if (oa->o_valid & OBD_MD_FLSIZE &&
 700             oinfo->oi_policy.l_extent.end != OBD_OBJECT_EOF) {
 701                 static char mdsinum[48];
 702
 703                 if (oa->o_valid & OBD_MD_FLFID)
 704                         snprintf(mdsinum, sizeof(mdsinum) - 1,
 705                                  "of parent "DFID, oa->o_parent_seq,
 706                                  oa->o_parent_oid, 0);
 707                 else
 708                         mdsinum[0] = '\0';
 709
 710                 CERROR("%s: setattr from %s trying to truncate object "DFID
 711                        " %s\n", ofd_name(ofd), obd_export_nid2str(exp),
 712                        PFID(fid), mdsinum);
 713                 GOTO(out, rc = -EPERM);
 714         }
 715
 716         fo = ofd_object_find_exists(env, ofd, fid);
 717         if (IS_ERR(fo)) {
 718                 CERROR("%s: can't find object "DFID"\n",
 719                        ofd_name(ofd), PFID(fid));
 720                 GOTO(out, rc = PTR_ERR(fo));
 721         }
 722
 723         la_from_obdo(&info->fti_attr, oa, oa->o_valid);
 724         info->fti_attr.la_valid &= ~LA_TYPE;
 725
 726         if (oa->o_valid & OBD_MD_FLFID) {
 727                 ff = &info->fti_mds_fid;
 728                 ofd_prepare_fidea(ff, oa);
 729         }
 730
 731         /* setting objects attributes (including owner/group) */
 732         rc = ofd_attr_set(env, fo, &info->fti_attr, ff);
 733         if (rc)
 734                 GOTO(out_unlock, rc);
 735
 736         ofd_counter_incr(exp, LPROC_OFD_STATS_SETATTR, NULL, 1);
 737         EXIT;
 738 out_unlock:
 739         ofd_object_put(env, fo);
 740 out:
 741         if (rc == 0) {
 742                 /* we do not call this before to avoid lu_object_find() in
 743                  *  ->lvbo_update() holding another reference on the object.
 744                  * otherwise concurrent destroy can make the object unavailable
 745                  * for 2nd lu_object_find() waiting for the first reference
 746                  * to go... deadlock! */
 747                 res = ldlm_resource_get(ns, NULL, &info->fti_resid, LDLM_EXTENT, 0);
 748                 if (res != NULL) {
 749                         ldlm_res_lvbo_update(res, NULL, 0);
 750                         ldlm_resource_putref(res);
 751                 }
 752         }
 753
 754         return rc;
 755 }
 756
 757 int ofd_destroy_by_fid(const struct lu_env *env, struct ofd_device *ofd,
 758                        const struct lu_fid *fid, int orphan)
 759 {
 760         struct ofd_thread_info  *info = ofd_info(env);
 761         struct lustre_handle     lockh;
 762         __u64                    flags = LDLM_FL_AST_DISCARD_DATA;
 763         __u64                    rc = 0;
 764         ldlm_policy_data_t       policy = {
 765                                         .l_extent = { 0, OBD_OBJECT_EOF }
 766                                  };
 767         struct ofd_object       *fo;
 768
 769         ENTRY;
 770
 771         fo = ofd_object_find_exists(env, ofd, fid);
 772         if (IS_ERR(fo))
 773                 RETURN(PTR_ERR(fo));
 774
 775         /* Tell the clients that the object is gone now and that they should
 776          * throw away any cached pages. */
 777         ost_fid_build_resid(fid, &info->fti_resid);
 778         rc = ldlm_cli_enqueue_local(ofd->ofd_namespace, &info->fti_resid,
 779                                     LDLM_EXTENT, &policy, LCK_PW, &flags,
 780                                     ldlm_blocking_ast, ldlm_completion_ast,
 781                                     NULL, NULL, 0, LVB_T_NONE, NULL, &lockh);
 782
 783         /* We only care about the side-effects, just drop the lock. */
 784         if (rc == ELDLM_OK)
 785                 ldlm_lock_decref(&lockh, LCK_PW);
 786
 787         LASSERT(fo != NULL);
 788
 789         rc = ofd_object_destroy(env, fo, orphan);
 790         EXIT;
 791
 792         ofd_object_put(env, fo);
 793         RETURN(rc);
 794 }
 795
 796 /* needed by echo client only for now, RPC handler uses ofd_destroy_hdl() */
 797 int ofd_echo_destroy(const struct lu_env *env, struct obd_export *exp,
 798                      struct obdo *oa, struct lov_stripe_md *md,
 799                      struct obd_trans_info *oti, struct obd_export *md_exp,
 800                      void *capa)
 801 {
 802         struct ofd_device       *ofd = ofd_exp(exp);
 803         struct lu_fid           *fid = &oa->o_oi.oi_fid;
 804         int                      rc = 0;
 805
 806         ENTRY;
 807
 808         ofd_info_init(env, exp);
 809
 810         CDEBUG(D_HA, "%s: Destroy object "DFID"\n", ofd_name(ofd), PFID(fid));
 811
 812         rc = ofd_destroy_by_fid(env, ofd, fid, 0);
 813         if (rc == -ENOENT) {
 814                 CDEBUG(D_INODE, "%s: destroying non-existent object "DFID"\n",
 815                        ofd_name(ofd), PFID(fid));
 816                 GOTO(out, rc);
 817         } else if (rc != 0) {
 818                 CERROR("%s: error destroying object "DFID": %d\n",
 819                        ofd_name(ofd), PFID(fid), rc);
 820                 GOTO(out, rc);
 821         }
 822         EXIT;
 823 out:
 824         return rc;
 825 }
 826
 827 /* needed by echo client only for now, RPC handler uses ofd_create_hdl()
 828  * It is much simpler and just create objects */
 829 int ofd_echo_create(const struct lu_env *env, struct obd_export *exp,
 830                     struct obdo *oa, struct lov_stripe_md **ea,
 831                     struct obd_trans_info *oti)
 832 {
 833         struct ofd_device       *ofd = ofd_exp(exp);
 834         struct ofd_thread_info  *info;
 835         obd_seq                  seq = ostid_seq(&oa->o_oi);
 836         struct ofd_seq          *oseq;
 837         int                      rc = 0, diff = 1;
 838         obd_id                   next_id;
 839         int                      count;
 840
 841         ENTRY;
 842
 843         info = ofd_info_init(env, exp);
 844
 845         LASSERT(seq == FID_SEQ_ECHO);
 846         LASSERT(oa->o_valid & OBD_MD_FLGROUP);
 847
 848         CDEBUG(D_INFO, "ofd_create("DOSTID")\n", POSTID(&oa->o_oi));
 849
 850         down_read(&ofd->ofd_lastid_rwsem);
 851         /* Currently, for safe, we do not distinguish which LAST_ID is broken,
 852          * we may do that in the future.
 853          * Return -ENOSPC until the LAST_ID rebuilt. */
 854         if (unlikely(ofd->ofd_lastid_rebuilding))
 855                 GOTO(out_sem, rc = -ENOSPC);
 856
 857         oseq = ofd_seq_load(env, ofd, seq);
 858         if (IS_ERR(oseq)) {
 859                 CERROR("%s: Can't find FID Sequence "LPX64": rc = %ld\n",
 860                        ofd_name(ofd), seq, PTR_ERR(oseq));
 861                 GOTO(out_sem, rc = -EINVAL);
 862         }
 863
 864         mutex_lock(&oseq->os_create_lock);
 865         rc = ofd_grant_create(env, ofd_obd(ofd)->obd_self_export, &diff);
 866         if (rc < 0) {
 867                 CDEBUG(D_HA, "%s: failed to acquire grant space for "
 868                        "precreate (%d): rc = %d\n", ofd_name(ofd), diff, rc);
 869                 diff = 0;
 870                 GOTO(out, rc);
 871         }
 872
 873         next_id = ofd_seq_last_oid(oseq) + 1;
 874         count = ofd_precreate_batch(ofd, diff);
 875
 876         rc = ofd_precreate_objects(env, ofd, next_id, oseq, count, 0);
 877         if (rc < 0) {
 878                 CERROR("%s: unable to precreate: rc = %d\n",
 879                        ofd_name(ofd), rc);
 880         } else {
 881                 ostid_set_id(&oa->o_oi, ofd_seq_last_oid(oseq));
 882                 oa->o_valid |= OBD_MD_FLID | OBD_MD_FLGROUP;
 883                 rc = 0;
 884         }
 885
 886         ofd_grant_commit(env, ofd_obd(ofd)->obd_self_export, rc);
 887 out:
 888         mutex_unlock(&oseq->os_create_lock);
 889         if (rc == 0 && ea != NULL) {
 890                 struct lov_stripe_md *lsm = *ea;
 891
 892                 lsm->lsm_oi = oa->o_oi;
 893         }
 894         ofd_seq_put(env, oseq);
 895
 896 out_sem:
 897         up_read(&ofd->ofd_lastid_rwsem);
 898         RETURN(rc);
 899 }
 900
 901 /* needed by echo client only for now, RPC handler uses ofd_getattr_hdl() */
 902 int ofd_echo_getattr(const struct lu_env *env, struct obd_export *exp,
 903                      struct obd_info *oinfo)
 904 {
 905         struct ofd_device       *ofd = ofd_exp(exp);
 906         struct ofd_thread_info  *info;
 907         struct lu_fid           *fid = &oinfo->oi_oa->o_oi.oi_fid;
 908         struct ofd_object       *fo;
 909         int                      rc = 0;
 910
 911         ENTRY;
 912
 913         info = ofd_info_init(env, exp);
 914
 915         fo = ofd_object_find_exists(env, ofd, fid);
 916         if (IS_ERR(fo))
 917                 GOTO(out, rc = PTR_ERR(fo));
 918
 919         LASSERT(fo != NULL);
 920         rc = ofd_attr_get(env, fo, &info->fti_attr);
 921         oinfo->oi_oa->o_valid = OBD_MD_FLID;
 922         if (rc == 0) {
 923                 __u64 curr_version;
 924
 925                 obdo_from_la(oinfo->oi_oa, &info->fti_attr,
 926                              OFD_VALID_FLAGS | LA_UID | LA_GID);
 927
 928                 /* Store object version in reply */
 929                 curr_version = dt_version_get(env, ofd_object_child(fo));
 930                 if ((__s64)curr_version != -EOPNOTSUPP) {
 931                         oinfo->oi_oa->o_valid |= OBD_MD_FLDATAVERSION;
 932                         oinfo->oi_oa->o_data_version = curr_version;
 933                 }
 934         }
 935
 936         ofd_object_put(env, fo);
 937 out:
 938         RETURN(rc);
 939 }
 940
 941 static int ofd_ioc_get_obj_version(const struct lu_env *env,
 942                                    struct ofd_device *ofd, void *karg)
 943 {
 944         struct obd_ioctl_data *data = karg;
 945         struct lu_fid          fid;
 946         struct ofd_object     *fo;
 947         dt_obj_version_t       version;
 948         int                    rc = 0;
 949
 950         ENTRY;
 951
 952         if (data->ioc_inlbuf2 == NULL || data->ioc_inllen2 != sizeof(version))
 953                 GOTO(out, rc = -EINVAL);
 954
 955         if (data->ioc_inlbuf1 != NULL && data->ioc_inllen1 == sizeof(fid)) {
 956                 fid = *(struct lu_fid *)data->ioc_inlbuf1;
 957         } else if (data->ioc_inlbuf3 != NULL &&
 958                    data->ioc_inllen3 == sizeof(__u64) &&
 959                    data->ioc_inlbuf4 != NULL &&
 960                    data->ioc_inllen4 == sizeof(__u64)) {
 961                 struct ost_id ostid;
 962
 963                 ostid_set_seq(&ostid, *(__u64 *)data->ioc_inlbuf4);
 964                 ostid_set_id(&ostid, *(__u64 *)data->ioc_inlbuf3);
 965                 rc = ostid_to_fid(&fid, &ostid,
 966                                   ofd->ofd_lut.lut_lsd.lsd_osd_index);
 967                 if (rc != 0)
 968                         GOTO(out, rc);
 969         } else {
 970                 GOTO(out, rc = -EINVAL);
 971         }
 972
 973         if (!fid_is_sane(&fid))
 974                 GOTO(out, rc = -EINVAL);
 975
 976         fo = ofd_object_find(env, ofd, &fid);
 977         if (IS_ERR(fo))
 978                 GOTO(out, rc = PTR_ERR(fo));
 979
 980         if (!ofd_object_exists(fo))
 981                 GOTO(out_fo, rc = -ENOENT);
 982
 983         if (lu_object_remote(&fo->ofo_obj.do_lu))
 984                 GOTO(out_fo, rc = -EREMOTE);
 985
 986         version = dt_version_get(env, ofd_object_child(fo));
 987         if (version == 0)
 988                 GOTO(out_fo, rc = -EIO);
 989
 990         *(dt_obj_version_t *)data->ioc_inlbuf2 = version;
 991
 992         EXIT;
 993 out_fo:
 994         ofd_object_put(env, fo);
 995 out:
 996         return rc;
 997 }
 998
 999 int ofd_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
1000                   void *karg, void *uarg)
1001 {
1002         struct lu_env            env;
1003         struct ofd_device       *ofd = ofd_exp(exp);
1004         struct obd_device       *obd = ofd_obd(ofd);
1005         int                      rc;
1006
1007         ENTRY;
1008
1009         CDEBUG(D_IOCTL, "handling ioctl cmd %#x\n", cmd);
1010         rc = lu_env_init(&env, LCT_DT_THREAD);
1011         if (rc)
1012                 RETURN(rc);
1013
1014         switch (cmd) {
1015         case OBD_IOC_ABORT_RECOVERY:
1016                 CERROR("%s: aborting recovery\n", obd->obd_name);
1017                 target_stop_recovery_thread(obd);
1018                 break;
1019         case OBD_IOC_SYNC:
1020                 CDEBUG(D_RPCTRACE, "syncing ost %s\n", obd->obd_name);
1021                 rc = dt_sync(&env, ofd->ofd_osd);
1022                 break;
1023         case OBD_IOC_SET_READONLY:
1024                 rc = dt_sync(&env, ofd->ofd_osd);
1025                 if (rc == 0)
1026                         rc = dt_ro(&env, ofd->ofd_osd);
1027                 break;
1028         case OBD_IOC_START_LFSCK: {
1029                 struct obd_ioctl_data *data = karg;
1030                 struct lfsck_start_param lsp;
1031
1032                 if (unlikely(data == NULL)) {
1033                         rc = -EINVAL;
1034                         break;
1035                 }
1036
1037                 lsp.lsp_start = (struct lfsck_start *)(data->ioc_inlbuf1);
1038                 lsp.lsp_index_valid = 0;
1039                 rc = lfsck_start(&env, ofd->ofd_osd, &lsp);
1040                 break;
1041         }
1042         case OBD_IOC_STOP_LFSCK: {
1043                 struct obd_ioctl_data *data = karg;
1044                 struct lfsck_stop      stop;
1045
1046                 stop.ls_status = LS_STOPPED;
1047                 /* Old lfsck utils may pass NULL @stop. */
1048                 if (data->ioc_inlbuf1 == NULL)
1049                         stop.ls_flags = 0;
1050                 else
1051                         stop.ls_flags =
1052                         ((struct lfsck_stop *)(data->ioc_inlbuf1))->ls_flags;
1053
1054                 rc = lfsck_stop(&env, ofd->ofd_osd, &stop);
1055                 break;
1056         }
1057         case OBD_IOC_GET_OBJ_VERSION:
1058                 rc = ofd_ioc_get_obj_version(&env, ofd, karg);
1059                 break;
1060         default:
1061                 CERROR("%s: not supported cmd = %d\n", obd->obd_name, cmd);
1062                 rc = -ENOTTY;
1063         }
1064
1065         lu_env_fini(&env);
1066         RETURN(rc);
1067 }
1068
1069 static int ofd_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
1070 {
1071         int rc = 0;
1072
1073         ENTRY;
1074
1075         switch(stage) {
1076         case OBD_CLEANUP_EARLY:
1077                 break;
1078         case OBD_CLEANUP_EXPORTS:
1079                 target_cleanup_recovery(obd);
1080                 break;
1081         }
1082         RETURN(rc);
1083 }
1084
1085 static int ofd_ping(const struct lu_env *env, struct obd_export *exp)
1086 {
1087         ofd_fmd_expire(exp);
1088         return 0;
1089 }
1090
1091 static int ofd_health_check(const struct lu_env *nul, struct obd_device *obd)
1092 {
1093         struct ofd_device       *ofd = ofd_dev(obd->obd_lu_dev);
1094         struct ofd_thread_info  *info;
1095         struct lu_env            env;
1096 #ifdef USE_HEALTH_CHECK_WRITE
1097         struct thandle          *th;
1098 #endif
1099         int                      rc = 0;
1100
1101         /* obd_proc_read_health pass NULL env, we need real one */
1102         rc = lu_env_init(&env, LCT_DT_THREAD);
1103         if (rc)
1104                 RETURN(rc);
1105
1106         info = ofd_info_init(&env, NULL);
1107         rc = dt_statfs(&env, ofd->ofd_osd, &info->fti_u.osfs);
1108         if (unlikely(rc))
1109                 GOTO(out, rc);
1110
1111         if (info->fti_u.osfs.os_state == OS_STATE_READONLY)
1112                 GOTO(out, rc = -EROFS);
1113
1114 #ifdef USE_HEALTH_CHECK_WRITE
1115         OBD_ALLOC(info->fti_buf.lb_buf, PAGE_CACHE_SIZE);
1116         if (info->fti_buf.lb_buf == NULL)
1117                 GOTO(out, rc = -ENOMEM);
1118
1119         info->fti_buf.lb_len = PAGE_CACHE_SIZE;
1120         info->fti_off = 0;
1121
1122         th = dt_trans_create(&env, ofd->ofd_osd);
1123         if (IS_ERR(th))
1124                 GOTO(out, rc = PTR_ERR(th));
1125
1126         rc = dt_declare_record_write(&env, ofd->ofd_health_check_file,
1127                                      &info->fti_buf, info->fti_off, th);
1128         if (rc == 0) {
1129                 th->th_sync = 1; /* sync IO is needed */
1130                 rc = dt_trans_start_local(&env, ofd->ofd_osd, th);
1131                 if (rc == 0)
1132                         rc = dt_record_write(&env, ofd->ofd_health_check_file,
1133                                              &info->fti_buf, &info->fti_off,
1134                                              th);
1135         }
1136         dt_trans_stop(&env, ofd->ofd_osd, th);
1137
1138         OBD_FREE(info->fti_buf.lb_buf, PAGE_CACHE_SIZE);
1139
1140         CDEBUG(D_INFO, "write 1 page synchronously for checking io rc %d\n",rc);
1141 #endif
1142 out:
1143         lu_env_fini(&env);
1144         return !!rc;
1145 }
1146
1147 /*
1148  * Handle quota control requests to consult current usage/limit.
1149  *
1150  * \param obd - is the obd device associated with the ofd
1151  * \param exp - is the client's export
1152  * \param oqctl - is the obd_quotactl request to be processed
1153  */
1154 static int ofd_quotactl(struct obd_device *obd, struct obd_export *exp,
1155                         struct obd_quotactl *oqctl)
1156 {
1157         struct ofd_device  *ofd = ofd_dev(obd->obd_lu_dev);
1158         struct lu_env       env;
1159         int                 rc;
1160         ENTRY;
1161
1162         /* report success for quota on/off for interoperability with current MDT
1163          * stack */
1164         if (oqctl->qc_cmd == Q_QUOTAON || oqctl->qc_cmd == Q_QUOTAOFF)
1165                 RETURN(0);
1166
1167         rc = lu_env_init(&env, LCT_DT_THREAD);
1168         if (rc)
1169                 RETURN(rc);
1170
1171         rc = lquotactl_slv(&env, ofd->ofd_osd, oqctl);
1172         lu_env_fini(&env);
1173
1174         RETURN(rc);
1175 }
1176
1177 struct obd_ops ofd_obd_ops = {
1178         .o_owner                = THIS_MODULE,
1179         .o_connect              = ofd_obd_connect,
1180         .o_reconnect            = ofd_obd_reconnect,
1181         .o_disconnect           = ofd_obd_disconnect,
1182         .o_create               = ofd_echo_create,
1183         .o_statfs               = ofd_statfs,
1184         .o_setattr              = ofd_echo_setattr,
1185         .o_preprw               = ofd_preprw,
1186         .o_commitrw             = ofd_commitrw,
1187         .o_destroy              = ofd_echo_destroy,
1188         .o_init_export          = ofd_init_export,
1189         .o_destroy_export       = ofd_destroy_export,
1190         .o_postrecov            = ofd_obd_postrecov,
1191         .o_getattr              = ofd_echo_getattr,
1192         .o_iocontrol            = ofd_iocontrol,
1193         .o_precleanup           = ofd_precleanup,
1194         .o_ping                 = ofd_ping,
1195         .o_health_check         = ofd_health_check,
1196         .o_quotactl             = ofd_quotactl,
1197         .o_set_info_async       = ofd_set_info_async,
1198         .o_get_info             = ofd_get_info,
1199 };