lustre/osd-zfs/osd_object.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, 2015, 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/osd-zfs/osd_object.c
  37  *
  38  * Author: Alex Zhuravlev <bzzz@whamcloud.com>
  39  * Author: Mike Pershin <tappro@whamcloud.com>
  40  * Author: Johann Lombardi <johann@whamcloud.com>
  41  */
  42
  43 #define DEBUG_SUBSYSTEM S_OSD
  44
  45 #include <lustre_ver.h>
  46 #include <libcfs/libcfs.h>
  47 #include <obd_support.h>
  48 #include <lustre_net.h>
  49 #include <obd.h>
  50 #include <obd_class.h>
  51 #include <lustre_disk.h>
  52 #include <lustre_fid.h>
  53
  54 #include "osd_internal.h"
  55
  56 #include <sys/dnode.h>
  57 #include <sys/dbuf.h>
  58 #include <sys/spa.h>
  59 #include <sys/stat.h>
  60 #include <sys/zap.h>
  61 #include <sys/spa_impl.h>
  62 #include <sys/zfs_znode.h>
  63 #include <sys/dmu_tx.h>
  64 #include <sys/dmu_objset.h>
  65 #include <sys/dsl_prop.h>
  66 #include <sys/sa_impl.h>
  67 #include <sys/txg.h>
  68
  69 char *osd_obj_tag = "osd_object";
  70
  71 static struct dt_object_operations osd_obj_ops;
  72 static struct lu_object_operations osd_lu_obj_ops;
  73 extern struct dt_body_operations osd_body_ops;
  74 static struct dt_object_operations osd_obj_otable_it_ops;
  75
  76 extern struct kmem_cache *osd_object_kmem;
  77
  78 static void
  79 osd_object_sa_fini(struct osd_object *obj)
  80 {
  81         if (obj->oo_sa_hdl) {
  82                 sa_handle_destroy(obj->oo_sa_hdl);
  83                 obj->oo_sa_hdl = NULL;
  84         }
  85 }
  86
  87 static int
  88 osd_object_sa_init(struct osd_object *obj, struct osd_device *o)
  89 {
  90         int rc;
  91
  92         LASSERT(obj->oo_sa_hdl == NULL);
  93         LASSERT(obj->oo_db != NULL);
  94
  95         rc = -sa_handle_get(o->od_os, obj->oo_db->db_object, obj,
  96                             SA_HDL_PRIVATE, &obj->oo_sa_hdl);
  97         if (rc)
  98                 return rc;
  99
 100         /* Cache the xattr object id, valid for the life of the object */
 101         rc = -sa_lookup(obj->oo_sa_hdl, SA_ZPL_XATTR(o), &obj->oo_xattr, 8);
 102         if (rc == -ENOENT) {
 103                 obj->oo_xattr = ZFS_NO_OBJECT;
 104                 rc = 0;
 105         } else if (rc) {
 106                 osd_object_sa_fini(obj);
 107         }
 108
 109         return rc;
 110 }
 111
 112 /*
 113  * Add object to list of dirty objects in tx handle.
 114  */
 115 static void
 116 osd_object_sa_dirty_add(struct osd_object *obj, struct osd_thandle *oh)
 117 {
 118         if (!list_empty(&obj->oo_sa_linkage))
 119                 return;
 120
 121         down(&oh->ot_sa_lock);
 122         write_lock(&obj->oo_attr_lock);
 123         if (likely(list_empty(&obj->oo_sa_linkage)))
 124                 list_add(&obj->oo_sa_linkage, &oh->ot_sa_list);
 125         write_unlock(&obj->oo_attr_lock);
 126         up(&oh->ot_sa_lock);
 127 }
 128
 129 /*
 130  * Release spill block dbuf hold for all dirty SAs.
 131  */
 132 void osd_object_sa_dirty_rele(struct osd_thandle *oh)
 133 {
 134         struct osd_object *obj;
 135
 136         down(&oh->ot_sa_lock);
 137         while (!list_empty(&oh->ot_sa_list)) {
 138                 obj = list_entry(oh->ot_sa_list.next,
 139                                  struct osd_object, oo_sa_linkage);
 140                 sa_spill_rele(obj->oo_sa_hdl);
 141                 write_lock(&obj->oo_attr_lock);
 142                 list_del_init(&obj->oo_sa_linkage);
 143                 write_unlock(&obj->oo_attr_lock);
 144         }
 145         up(&oh->ot_sa_lock);
 146 }
 147
 148 /*
 149  * Update the SA and add the object to the dirty list.
 150  */
 151 int osd_object_sa_update(struct osd_object *obj, sa_attr_type_t type,
 152                          void *buf, uint32_t buflen, struct osd_thandle *oh)
 153 {
 154         int rc;
 155
 156         LASSERT(obj->oo_sa_hdl != NULL);
 157         LASSERT(oh->ot_tx != NULL);
 158
 159         rc = -sa_update(obj->oo_sa_hdl, type, buf, buflen, oh->ot_tx);
 160         osd_object_sa_dirty_add(obj, oh);
 161
 162         return rc;
 163 }
 164
 165 /*
 166  * Bulk update the SA and add the object to the dirty list.
 167  */
 168 static int
 169 osd_object_sa_bulk_update(struct osd_object *obj, sa_bulk_attr_t *attrs,
 170                           int count, struct osd_thandle *oh)
 171 {
 172         int rc;
 173
 174         LASSERT(obj->oo_sa_hdl != NULL);
 175         LASSERT(oh->ot_tx != NULL);
 176
 177         rc = -sa_bulk_update(obj->oo_sa_hdl, attrs, count, oh->ot_tx);
 178         osd_object_sa_dirty_add(obj, oh);
 179
 180         return rc;
 181 }
 182
 183 /*
 184  * Retrieve the attributes of a DMU object
 185  */
 186 int __osd_object_attr_get(const struct lu_env *env, struct osd_device *o,
 187                           struct osd_object *obj, struct lu_attr *la)
 188 {
 189         struct osa_attr *osa = &osd_oti_get(env)->oti_osa;
 190         sa_handle_t     *sa_hdl;
 191         sa_bulk_attr_t  *bulk;
 192         int              cnt = 0;
 193         int              rc;
 194         ENTRY;
 195
 196         LASSERT(obj->oo_db != NULL);
 197
 198         rc = -sa_handle_get(o->od_os, obj->oo_db->db_object, NULL,
 199                             SA_HDL_PRIVATE, &sa_hdl);
 200         if (rc)
 201                 RETURN(rc);
 202
 203         OBD_ALLOC(bulk, sizeof(sa_bulk_attr_t) * 9);
 204         if (bulk == NULL)
 205                 GOTO(out_sa, rc = -ENOMEM);
 206
 207         la->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE | LA_TYPE |
 208                         LA_SIZE | LA_UID | LA_GID | LA_FLAGS | LA_NLINK;
 209
 210         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(o), NULL, osa->atime, 16);
 211         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(o), NULL, osa->mtime, 16);
 212         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(o), NULL, osa->ctime, 16);
 213         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(o), NULL, &osa->mode, 8);
 214         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(o), NULL, &osa->size, 8);
 215         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(o), NULL, &osa->nlink, 8);
 216         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(o), NULL, &osa->uid, 8);
 217         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(o), NULL, &osa->gid, 8);
 218         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(o), NULL, &osa->flags, 8);
 219
 220         rc = -sa_bulk_lookup(sa_hdl, bulk, cnt);
 221         if (rc)
 222                 GOTO(out_bulk, rc);
 223
 224         la->la_atime = osa->atime[0];
 225         la->la_mtime = osa->mtime[0];
 226         la->la_ctime = osa->ctime[0];
 227         la->la_mode = osa->mode;
 228         la->la_uid = osa->uid;
 229         la->la_gid = osa->gid;
 230         la->la_nlink = osa->nlink;
 231         la->la_flags = attrs_zfs2fs(osa->flags);
 232         la->la_size = osa->size;
 233
 234         /* Try to get extra flag from LMA. Right now, only LMAI_ORPHAN
 235          * flags is stored in LMA, and it is only for orphan directory */
 236         if (S_ISDIR(la->la_mode) && dt_object_exists(&obj->oo_dt)) {
 237                 struct osd_thread_info *info = osd_oti_get(env);
 238                 struct lustre_mdt_attrs *lma;
 239                 struct lu_buf buf;
 240
 241                 lma = (struct lustre_mdt_attrs *)info->oti_buf;
 242                 buf.lb_buf = lma;
 243                 buf.lb_len = sizeof(info->oti_buf);
 244                 rc = osd_xattr_get(env, &obj->oo_dt, &buf, XATTR_NAME_LMA);
 245                 if (rc > 0) {
 246                         rc = 0;
 247                         lma->lma_incompat = le32_to_cpu(lma->lma_incompat);
 248                         obj->oo_lma_flags =
 249                                 lma_to_lustre_flags(lma->lma_incompat);
 250
 251                 } else if (rc == -ENODATA) {
 252                         rc = 0;
 253                 }
 254         }
 255
 256         if (S_ISCHR(la->la_mode) || S_ISBLK(la->la_mode)) {
 257                 rc = -sa_lookup(sa_hdl, SA_ZPL_RDEV(o), &osa->rdev, 8);
 258                 if (rc)
 259                         GOTO(out_bulk, rc);
 260                 la->la_rdev = osa->rdev;
 261                 la->la_valid |= LA_RDEV;
 262         }
 263 out_bulk:
 264         OBD_FREE(bulk, sizeof(sa_bulk_attr_t) * 9);
 265 out_sa:
 266         sa_handle_destroy(sa_hdl);
 267
 268         RETURN(rc);
 269 }
 270
 271 int __osd_obj2dbuf(const struct lu_env *env, objset_t *os,
 272                    uint64_t oid, dmu_buf_t **dbp)
 273 {
 274         dmu_object_info_t *doi = &osd_oti_get(env)->oti_doi;
 275         int rc;
 276
 277         rc = -sa_buf_hold(os, oid, osd_obj_tag, dbp);
 278         if (rc)
 279                 return rc;
 280
 281         dmu_object_info_from_db(*dbp, doi);
 282         if (unlikely (oid != DMU_USERUSED_OBJECT &&
 283             oid != DMU_GROUPUSED_OBJECT && doi->doi_bonus_type != DMU_OT_SA)) {
 284                 sa_buf_rele(*dbp, osd_obj_tag);
 285                 *dbp = NULL;
 286                 return -EINVAL;
 287         }
 288
 289         LASSERT(*dbp);
 290         LASSERT((*dbp)->db_object == oid);
 291         LASSERT((*dbp)->db_offset == -1);
 292         LASSERT((*dbp)->db_data != NULL);
 293
 294         return 0;
 295 }
 296
 297 /*
 298  * Concurrency: no concurrent access is possible that early in object
 299  * life-cycle.
 300  */
 301 struct lu_object *osd_object_alloc(const struct lu_env *env,
 302                                    const struct lu_object_header *hdr,
 303                                    struct lu_device *d)
 304 {
 305         struct osd_object *mo;
 306
 307         OBD_SLAB_ALLOC_PTR_GFP(mo, osd_object_kmem, GFP_NOFS);
 308         if (mo != NULL) {
 309                 struct lu_object *l;
 310
 311                 l = &mo->oo_dt.do_lu;
 312                 dt_object_init(&mo->oo_dt, NULL, d);
 313                 mo->oo_dt.do_ops = &osd_obj_ops;
 314                 l->lo_ops = &osd_lu_obj_ops;
 315                 INIT_LIST_HEAD(&mo->oo_sa_linkage);
 316                 INIT_LIST_HEAD(&mo->oo_unlinked_linkage);
 317                 init_rwsem(&mo->oo_sem);
 318                 init_rwsem(&mo->oo_guard);
 319                 rwlock_init(&mo->oo_attr_lock);
 320                 mo->oo_destroy = OSD_DESTROY_NONE;
 321                 return l;
 322         } else {
 323                 return NULL;
 324         }
 325 }
 326
 327 /*
 328  * Concurrency: shouldn't matter.
 329  */
 330 int osd_object_init0(const struct lu_env *env, struct osd_object *obj)
 331 {
 332         struct osd_device       *osd = osd_obj2dev(obj);
 333         const struct lu_fid     *fid = lu_object_fid(&obj->oo_dt.do_lu);
 334         int                      rc = 0;
 335         ENTRY;
 336
 337         if (obj->oo_db == NULL)
 338                 RETURN(0);
 339
 340         /* object exist */
 341
 342         rc = osd_object_sa_init(obj, osd);
 343         if (rc)
 344                 RETURN(rc);
 345
 346         /* cache attrs in object */
 347         rc = __osd_object_attr_get(env, osd, obj, &obj->oo_attr);
 348         if (rc)
 349                 RETURN(rc);
 350
 351         if (likely(!fid_is_acct(fid)))
 352                 /* no body operations for accounting objects */
 353                 obj->oo_dt.do_body_ops = &osd_body_ops;
 354
 355         /*
 356          * initialize object before marking it existing
 357          */
 358         obj->oo_dt.do_lu.lo_header->loh_attr |= obj->oo_attr.la_mode & S_IFMT;
 359
 360         smp_mb();
 361         obj->oo_dt.do_lu.lo_header->loh_attr |= LOHA_EXISTS;
 362
 363         RETURN(0);
 364 }
 365
 366 static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
 367 {
 368         struct osd_thread_info  *info = osd_oti_get(env);
 369         struct lu_buf           buf;
 370         int                     rc;
 371         struct lustre_mdt_attrs *lma;
 372         ENTRY;
 373
 374         CLASSERT(sizeof(info->oti_buf) >= sizeof(*lma));
 375         lma = (struct lustre_mdt_attrs *)info->oti_buf;
 376         buf.lb_buf = lma;
 377         buf.lb_len = sizeof(info->oti_buf);
 378
 379         rc = osd_xattr_get(env, &obj->oo_dt, &buf, XATTR_NAME_LMA);
 380         if (rc > 0) {
 381                 rc = 0;
 382                 lustre_lma_swab(lma);
 383                 if (unlikely((lma->lma_incompat & ~LMA_INCOMPAT_SUPP) ||
 384                              CFS_FAIL_CHECK(OBD_FAIL_OSD_LMA_INCOMPAT))) {
 385                         CWARN("%s: unsupported incompat LMA feature(s) %#x for "
 386                               "fid = "DFID"\n", osd_obj2dev(obj)->od_svname,
 387                               lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
 388                               PFID(lu_object_fid(&obj->oo_dt.do_lu)));
 389                         rc = -EOPNOTSUPP;
 390                 }
 391         } else if (rc == -ENODATA) {
 392                 /* haven't initialize LMA xattr */
 393                 rc = 0;
 394         }
 395
 396         RETURN(rc);
 397 }
 398
 399 /*
 400  * Concurrency: no concurrent access is possible that early in object
 401  * life-cycle.
 402  */
 403 static int osd_object_init(const struct lu_env *env, struct lu_object *l,
 404                            const struct lu_object_conf *conf)
 405 {
 406         struct osd_object       *obj = osd_obj(l);
 407         struct osd_device       *osd = osd_obj2dev(obj);
 408         uint64_t                 oid;
 409         int                      rc;
 410         ENTRY;
 411
 412         LASSERT(osd_invariant(obj));
 413
 414         if (fid_is_otable_it(&l->lo_header->loh_fid)) {
 415                 obj->oo_dt.do_ops = &osd_obj_otable_it_ops;
 416                 l->lo_header->loh_attr |= LOHA_EXISTS;
 417                 RETURN(0);
 418         }
 419
 420         rc = osd_fid_lookup(env, osd, lu_object_fid(l), &oid);
 421         if (rc == 0) {
 422                 LASSERT(obj->oo_db == NULL);
 423                 rc = __osd_obj2dbuf(env, osd->od_os, oid, &obj->oo_db);
 424                 /* EEXIST will be returned if object is being deleted in ZFS */
 425                 if (rc == -EEXIST) {
 426                         rc = 0;
 427                         GOTO(out, rc);
 428                 }
 429                 if (rc != 0) {
 430                         CERROR("%s: lookup "DFID"/"LPX64" failed: rc = %d\n",
 431                                osd->od_svname, PFID(lu_object_fid(l)), oid, rc);
 432                         GOTO(out, rc);
 433                 }
 434                 LASSERT(obj->oo_db);
 435                 rc = osd_object_init0(env, obj);
 436                 if (rc != 0)
 437                         GOTO(out, rc);
 438
 439                 rc = osd_check_lma(env, obj);
 440                 if (rc != 0)
 441                         GOTO(out, rc);
 442         } else if (rc == -ENOENT) {
 443                 rc = 0;
 444         }
 445         LASSERT(osd_invariant(obj));
 446 out:
 447         RETURN(rc);
 448 }
 449
 450 /*
 451  * Concurrency: no concurrent access is possible that late in object
 452  * life-cycle.
 453  */
 454 static void osd_object_free(const struct lu_env *env, struct lu_object *l)
 455 {
 456         struct osd_object *obj = osd_obj(l);
 457
 458         LASSERT(osd_invariant(obj));
 459
 460         dt_object_fini(&obj->oo_dt);
 461         OBD_SLAB_FREE_PTR(obj, osd_object_kmem);
 462 }
 463
 464 static int
 465 osd_object_unlinked_add(struct osd_object *obj, struct osd_thandle *oh)
 466 {
 467         int rc = -EBUSY;
 468
 469         LASSERT(obj->oo_destroy == OSD_DESTROY_ASYNC);
 470
 471         /* the object is supposed to be exclusively locked by
 472          * the caller (osd_object_destroy()), while the transaction
 473          * (oh) is per-thread and not shared */
 474         if (likely(list_empty(&obj->oo_unlinked_linkage))) {
 475                 list_add(&obj->oo_unlinked_linkage, &oh->ot_unlinked_list);
 476                 rc = 0;
 477         }
 478
 479         return rc;
 480 }
 481
 482 /* Default to max data size covered by a level-1 indirect block */
 483 static unsigned long osd_sync_destroy_max_size =
 484         1UL << (DN_MAX_INDBLKSHIFT - SPA_BLKPTRSHIFT + SPA_MAXBLOCKSHIFT);
 485 module_param(osd_sync_destroy_max_size, ulong, 0444);
 486 MODULE_PARM_DESC(osd_sync_destroy_max_size, "Maximum object size to use synchronous destroy.");
 487
 488 static inline void
 489 osd_object_set_destroy_type(struct osd_object *obj)
 490 {
 491         /*
 492          * Lock-less OST_WRITE can race with OST_DESTROY, so set destroy type
 493          * only once and use it consistently thereafter.
 494          */
 495         down_write(&obj->oo_guard);
 496         if (obj->oo_destroy == OSD_DESTROY_NONE) {
 497                 if (obj->oo_attr.la_size <= osd_sync_destroy_max_size)
 498                         obj->oo_destroy = OSD_DESTROY_SYNC;
 499                 else /* Larger objects are destroyed asynchronously */
 500                         obj->oo_destroy = OSD_DESTROY_ASYNC;
 501         }
 502         up_write(&obj->oo_guard);
 503 }
 504
 505 static int osd_declare_object_destroy(const struct lu_env *env,
 506                                       struct dt_object *dt,
 507                                       struct thandle *th)
 508 {
 509         char                    *buf = osd_oti_get(env)->oti_str;
 510         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
 511         struct osd_object       *obj = osd_dt_obj(dt);
 512         struct osd_device       *osd = osd_obj2dev(obj);
 513         struct osd_thandle      *oh;
 514         int                      rc;
 515         uint64_t                 zapid;
 516         ENTRY;
 517
 518         LASSERT(th != NULL);
 519         LASSERT(dt_object_exists(dt));
 520
 521         oh = container_of0(th, struct osd_thandle, ot_super);
 522         LASSERT(oh->ot_tx != NULL);
 523
 524         /* declare that we'll remove object from fid-dnode mapping */
 525         zapid = osd_get_name_n_idx(env, osd, fid, buf);
 526         dmu_tx_hold_bonus(oh->ot_tx, zapid);
 527         dmu_tx_hold_zap(oh->ot_tx, zapid, FALSE, buf);
 528
 529         osd_declare_xattrs_destroy(env, obj, oh);
 530
 531         /* declare that we'll remove object from inode accounting ZAPs */
 532         dmu_tx_hold_bonus(oh->ot_tx, osd->od_iusr_oid);
 533         dmu_tx_hold_zap(oh->ot_tx, osd->od_iusr_oid, FALSE, buf);
 534         dmu_tx_hold_bonus(oh->ot_tx, osd->od_igrp_oid);
 535         dmu_tx_hold_zap(oh->ot_tx, osd->od_igrp_oid, FALSE, buf);
 536
 537         /* one less inode */
 538         rc = osd_declare_quota(env, osd, obj->oo_attr.la_uid,
 539                                obj->oo_attr.la_gid, -1, oh, false, NULL, false);
 540         if (rc)
 541                 RETURN(rc);
 542
 543         /* data to be truncated */
 544         rc = osd_declare_quota(env, osd, obj->oo_attr.la_uid,
 545                                obj->oo_attr.la_gid, 0, oh, true, NULL, false);
 546         if (rc)
 547                 RETURN(rc);
 548
 549         osd_object_set_destroy_type(obj);
 550         if (obj->oo_destroy == OSD_DESTROY_SYNC)
 551                 dmu_tx_hold_free(oh->ot_tx, obj->oo_db->db_object,
 552                                  0, DMU_OBJECT_END);
 553         else
 554                 dmu_tx_hold_zap(oh->ot_tx, osd->od_unlinkedid, TRUE, NULL);
 555
 556         RETURN(0);
 557 }
 558
 559 static int osd_object_destroy(const struct lu_env *env,
 560                               struct dt_object *dt, struct thandle *th)
 561 {
 562         char                    *buf = osd_oti_get(env)->oti_str;
 563         struct osd_object       *obj = osd_dt_obj(dt);
 564         struct osd_device       *osd = osd_obj2dev(obj);
 565         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
 566         struct osd_thandle      *oh;
 567         int                      rc;
 568         uint64_t                 oid, zapid;
 569         ENTRY;
 570
 571         down_write(&obj->oo_guard);
 572
 573         if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
 574                 GOTO(out, rc = -ENOENT);
 575
 576         LASSERT(obj->oo_db != NULL);
 577
 578         oh = container_of0(th, struct osd_thandle, ot_super);
 579         LASSERT(oh != NULL);
 580         LASSERT(oh->ot_tx != NULL);
 581
 582         /* remove obj ref from index dir (it depends) */
 583         zapid = osd_get_name_n_idx(env, osd, fid, buf);
 584         rc = -zap_remove(osd->od_os, zapid, buf, oh->ot_tx);
 585         if (rc) {
 586                 CERROR("%s: zap_remove(%s) failed: rc = %d\n",
 587                        osd->od_svname, buf, rc);
 588                 GOTO(out, rc);
 589         }
 590
 591         rc = osd_xattrs_destroy(env, obj, oh);
 592         if (rc) {
 593                 CERROR("%s: cannot destroy xattrs for %s: rc = %d\n",
 594                        osd->od_svname, buf, rc);
 595                 GOTO(out, rc);
 596         }
 597
 598         /* Remove object from inode accounting. It is not fatal for the destroy
 599          * operation if something goes wrong while updating accounting, but we
 600          * still log an error message to notify the administrator */
 601         rc = -zap_increment_int(osd->od_os, osd->od_iusr_oid,
 602                                 obj->oo_attr.la_uid, -1, oh->ot_tx);
 603         if (rc)
 604                 CERROR("%s: failed to remove "DFID" from accounting ZAP for usr"
 605                        " %d: rc = %d\n", osd->od_svname, PFID(fid),
 606                        obj->oo_attr.la_uid, rc);
 607         rc = -zap_increment_int(osd->od_os, osd->od_igrp_oid,
 608                                 obj->oo_attr.la_gid, -1, oh->ot_tx);
 609         if (rc)
 610                 CERROR("%s: failed to remove "DFID" from accounting ZAP for grp"
 611                        " %d: rc = %d\n", osd->od_svname, PFID(fid),
 612                        obj->oo_attr.la_gid, rc);
 613
 614         oid = obj->oo_db->db_object;
 615         if (unlikely(obj->oo_destroy == OSD_DESTROY_NONE)) {
 616                 /* this may happen if the destroy wasn't declared
 617                  * e.g. when the object is created and then destroyed
 618                  * in the same transaction - we don't need additional
 619                  * space for destroy specifically */
 620                 LASSERT(obj->oo_attr.la_size <= osd_sync_destroy_max_size);
 621                 rc = -dmu_object_free(osd->od_os, oid, oh->ot_tx);
 622                 if (rc)
 623                         CERROR("%s: failed to free %s "LPU64": rc = %d\n",
 624                                osd->od_svname, buf, oid, rc);
 625         } else if (obj->oo_destroy == OSD_DESTROY_SYNC) {
 626                 rc = -dmu_object_free(osd->od_os, oid, oh->ot_tx);
 627                 if (rc)
 628                         CERROR("%s: failed to free %s "LPU64": rc = %d\n",
 629                                osd->od_svname, buf, oid, rc);
 630         } else { /* asynchronous destroy */
 631                 rc = osd_object_unlinked_add(obj, oh);
 632                 if (rc)
 633                         GOTO(out, rc);
 634
 635                 rc = -zap_add_int(osd->od_os, osd->od_unlinkedid,
 636                                   oid, oh->ot_tx);
 637                 if (rc)
 638                         CERROR("%s: zap_add_int() failed %s "LPU64": rc = %d\n",
 639                                osd->od_svname, buf, oid, rc);
 640         }
 641
 642 out:
 643         /* not needed in the cache anymore */
 644         set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
 645         if (rc == 0)
 646                 obj->oo_destroyed = 1;
 647         up_write(&obj->oo_guard);
 648         RETURN (0);
 649 }
 650
 651 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
 652 {
 653         struct osd_object *obj = osd_obj(l);
 654
 655         if (obj->oo_db != NULL) {
 656                 osd_object_sa_fini(obj);
 657                 if (obj->oo_sa_xattr) {
 658                         nvlist_free(obj->oo_sa_xattr);
 659                         obj->oo_sa_xattr = NULL;
 660                 }
 661                 sa_buf_rele(obj->oo_db, osd_obj_tag);
 662                 list_del(&obj->oo_sa_linkage);
 663                 obj->oo_db = NULL;
 664         }
 665 }
 666
 667 /*
 668  * Concurrency: ->loo_object_release() is called under site spin-lock.
 669  */
 670 static void osd_object_release(const struct lu_env *env,
 671                                struct lu_object *l)
 672 {
 673 }
 674
 675 /*
 676  * Concurrency: shouldn't matter.
 677  */
 678 static int osd_object_print(const struct lu_env *env, void *cookie,
 679                             lu_printer_t p, const struct lu_object *l)
 680 {
 681         struct osd_object *o = osd_obj(l);
 682
 683         return (*p)(env, cookie, LUSTRE_OSD_ZFS_NAME"-object@%p", o);
 684 }
 685
 686 static void osd_object_read_lock(const struct lu_env *env,
 687                                  struct dt_object *dt, unsigned role)
 688 {
 689         struct osd_object *obj = osd_dt_obj(dt);
 690
 691         LASSERT(osd_invariant(obj));
 692
 693         down_read_nested(&obj->oo_sem, role);
 694 }
 695
 696 static void osd_object_write_lock(const struct lu_env *env,
 697                                   struct dt_object *dt, unsigned role)
 698 {
 699         struct osd_object *obj = osd_dt_obj(dt);
 700
 701         LASSERT(osd_invariant(obj));
 702
 703         down_write_nested(&obj->oo_sem, role);
 704 }
 705
 706 static void osd_object_read_unlock(const struct lu_env *env,
 707                                    struct dt_object *dt)
 708 {
 709         struct osd_object *obj = osd_dt_obj(dt);
 710
 711         LASSERT(osd_invariant(obj));
 712         up_read(&obj->oo_sem);
 713 }
 714
 715 static void osd_object_write_unlock(const struct lu_env *env,
 716                                     struct dt_object *dt)
 717 {
 718         struct osd_object *obj = osd_dt_obj(dt);
 719
 720         LASSERT(osd_invariant(obj));
 721         up_write(&obj->oo_sem);
 722 }
 723
 724 static int osd_object_write_locked(const struct lu_env *env,
 725                                    struct dt_object *dt)
 726 {
 727         struct osd_object *obj = osd_dt_obj(dt);
 728         int rc = 1;
 729
 730         LASSERT(osd_invariant(obj));
 731
 732         if (down_write_trylock(&obj->oo_sem)) {
 733                 rc = 0;
 734                 up_write(&obj->oo_sem);
 735         }
 736         return rc;
 737 }
 738
 739 static int osd_attr_get(const struct lu_env *env,
 740                         struct dt_object *dt,
 741                         struct lu_attr *attr)
 742 {
 743         struct osd_object       *obj = osd_dt_obj(dt);
 744         uint64_t                 blocks;
 745         uint32_t                 blksize;
 746         int                      rc = 0;
 747
 748         down_read(&obj->oo_guard);
 749
 750         if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
 751                 GOTO(out, rc = -ENOENT);
 752
 753         LASSERT(osd_invariant(obj));
 754         LASSERT(obj->oo_db);
 755
 756         read_lock(&obj->oo_attr_lock);
 757         *attr = obj->oo_attr;
 758         if (obj->oo_lma_flags & LUSTRE_ORPHAN_FL)
 759                 attr->la_flags |= LUSTRE_ORPHAN_FL;
 760         read_unlock(&obj->oo_attr_lock);
 761
 762         /* with ZFS_DEBUG zrl_add_debug() called by DB_DNODE_ENTER()
 763          * from within sa_object_size() can block on a mutex, so
 764          * we can't call sa_object_size() holding rwlock */
 765         sa_object_size(obj->oo_sa_hdl, &blksize, &blocks);
 766         /* we do not control size of indices, so always calculate
 767          * it from number of blocks reported by DMU */
 768         if (S_ISDIR(attr->la_mode))
 769                 attr->la_size = 512 * blocks;
 770         /* Block size may be not set; suggest maximal I/O transfers. */
 771         if (blksize == 0)
 772                 blksize = osd_spa_maxblocksize(
 773                         dmu_objset_spa(osd_obj2dev(obj)->od_os));
 774
 775         attr->la_blksize = blksize;
 776         attr->la_blocks = blocks;
 777         attr->la_valid |= LA_BLOCKS | LA_BLKSIZE;
 778
 779 out:
 780         up_read(&obj->oo_guard);
 781         return rc;
 782 }
 783
 784 /* Simple wrapper on top of qsd API which implement quota transfer for osd
 785  * setattr needs. As a reminder, only the root user can change ownership of
 786  * a file, that's why EDQUOT & EINPROGRESS errors are discarded */
 787 static inline int qsd_transfer(const struct lu_env *env,
 788                                struct qsd_instance *qsd,
 789                                struct lquota_trans *trans, int qtype,
 790                                __u64 orig_id, __u64 new_id, __u64 bspace,
 791                                struct lquota_id_info *qi)
 792 {
 793         int     rc;
 794
 795         if (unlikely(qsd == NULL))
 796                 return 0;
 797
 798         LASSERT(qtype >= 0 && qtype < MAXQUOTAS);
 799         qi->lqi_type = qtype;
 800
 801         /* inode accounting */
 802         qi->lqi_is_blk = false;
 803
 804         /* one more inode for the new owner ... */
 805         qi->lqi_id.qid_uid = new_id;
 806         qi->lqi_space      = 1;
 807         rc = qsd_op_begin(env, qsd, trans, qi, NULL);
 808         if (rc == -EDQUOT || rc == -EINPROGRESS)
 809                 rc = 0;
 810         if (rc)
 811                 return rc;
 812
 813         /* and one less inode for the current id */
 814         qi->lqi_id.qid_uid = orig_id;;
 815         qi->lqi_space      = -1;
 816         /* can't get EDQUOT when reducing usage */
 817         rc = qsd_op_begin(env, qsd, trans, qi, NULL);
 818         if (rc == -EINPROGRESS)
 819                 rc = 0;
 820         if (rc)
 821                 return rc;
 822
 823         /* block accounting */
 824         qi->lqi_is_blk = true;
 825
 826         /* more blocks for the new owner ... */
 827         qi->lqi_id.qid_uid = new_id;
 828         qi->lqi_space      = bspace;
 829         rc = qsd_op_begin(env, qsd, trans, qi, NULL);
 830         if (rc == -EDQUOT || rc == -EINPROGRESS)
 831                 rc = 0;
 832         if (rc)
 833                 return rc;
 834
 835         /* and finally less blocks for the current owner */
 836         qi->lqi_id.qid_uid = orig_id;
 837         qi->lqi_space      = -bspace;
 838         rc = qsd_op_begin(env, qsd, trans, qi, NULL);
 839         /* can't get EDQUOT when reducing usage */
 840         if (rc == -EINPROGRESS)
 841                 rc = 0;
 842         return rc;
 843 }
 844
 845 static int osd_declare_attr_set(const struct lu_env *env,
 846                                 struct dt_object *dt,
 847                                 const struct lu_attr *attr,
 848                                 struct thandle *handle)
 849 {
 850         struct osd_thread_info  *info = osd_oti_get(env);
 851         char                    *buf = osd_oti_get(env)->oti_str;
 852         struct osd_object       *obj = osd_dt_obj(dt);
 853         struct osd_device       *osd = osd_obj2dev(obj);
 854         struct osd_thandle      *oh;
 855         uint64_t                 bspace;
 856         uint32_t                 blksize;
 857         int                      rc = 0;
 858         ENTRY;
 859
 860
 861         LASSERT(handle != NULL);
 862         LASSERT(osd_invariant(obj));
 863
 864         oh = container_of0(handle, struct osd_thandle, ot_super);
 865
 866         down_read(&obj->oo_guard);
 867         if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
 868                 GOTO(out, rc = 0);
 869
 870         LASSERT(obj->oo_sa_hdl != NULL);
 871         LASSERT(oh->ot_tx != NULL);
 872         dmu_tx_hold_sa(oh->ot_tx, obj->oo_sa_hdl, 0);
 873         if (oh->ot_tx->tx_err != 0)
 874                 GOTO(out, rc = -oh->ot_tx->tx_err);
 875
 876         sa_object_size(obj->oo_sa_hdl, &blksize, &bspace);
 877         bspace = toqb(bspace * blksize);
 878
 879         __osd_xattr_declare_set(env, obj, sizeof(struct lustre_mdt_attrs),
 880                                 XATTR_NAME_LMA, oh);
 881
 882         if (attr && attr->la_valid & LA_UID) {
 883                 /* account for user inode tracking ZAP update */
 884                 dmu_tx_hold_bonus(oh->ot_tx, osd->od_iusr_oid);
 885                 dmu_tx_hold_zap(oh->ot_tx, osd->od_iusr_oid, TRUE, buf);
 886
 887                 /* quota enforcement for user */
 888                 if (attr->la_uid != obj->oo_attr.la_uid) {
 889                         rc = qsd_transfer(env, osd->od_quota_slave,
 890                                           &oh->ot_quota_trans, USRQUOTA,
 891                                           obj->oo_attr.la_uid, attr->la_uid,
 892                                           bspace, &info->oti_qi);
 893                         if (rc)
 894                                 GOTO(out, rc);
 895                 }
 896         }
 897         if (attr && attr->la_valid & LA_GID) {
 898                 /* account for user inode tracking ZAP update */
 899                 dmu_tx_hold_bonus(oh->ot_tx, osd->od_igrp_oid);
 900                 dmu_tx_hold_zap(oh->ot_tx, osd->od_igrp_oid, TRUE, buf);
 901
 902                 /* quota enforcement for group */
 903                 if (attr->la_gid != obj->oo_attr.la_gid) {
 904                         rc = qsd_transfer(env, osd->od_quota_slave,
 905                                           &oh->ot_quota_trans, GRPQUOTA,
 906                                           obj->oo_attr.la_gid, attr->la_gid,
 907                                           bspace, &info->oti_qi);
 908                         if (rc)
 909                                 GOTO(out, rc);
 910                 }
 911         }
 912
 913 out:
 914         up_read(&obj->oo_guard);
 915         RETURN(rc);
 916 }
 917
 918 /*
 919  * Set the attributes of an object
 920  *
 921  * The transaction passed to this routine must have
 922  * dmu_tx_hold_bonus(tx, oid) called and then assigned
 923  * to a transaction group.
 924  */
 925 static int osd_attr_set(const struct lu_env *env, struct dt_object *dt,
 926                         const struct lu_attr *la, struct thandle *handle)
 927 {
 928         struct osd_thread_info  *info = osd_oti_get(env);
 929         struct osd_object       *obj = osd_dt_obj(dt);
 930         struct osd_device       *osd = osd_obj2dev(obj);
 931         struct osd_thandle      *oh;
 932         struct osa_attr         *osa = &info->oti_osa;
 933         sa_bulk_attr_t          *bulk;
 934         __u64                    valid = la->la_valid;
 935         int                      cnt;
 936         int                      rc = 0;
 937
 938         ENTRY;
 939
 940         down_read(&obj->oo_guard);
 941         if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
 942                 GOTO(out, rc = -ENOENT);
 943
 944         LASSERT(handle != NULL);
 945         LASSERT(osd_invariant(obj));
 946         LASSERT(obj->oo_sa_hdl);
 947
 948         oh = container_of0(handle, struct osd_thandle, ot_super);
 949         /* Assert that the transaction has been assigned to a
 950            transaction group. */
 951         LASSERT(oh->ot_tx->tx_txg != 0);
 952
 953         /* Only allow set size for regular file */
 954         if (!S_ISREG(dt->do_lu.lo_header->loh_attr))
 955                 valid &= ~(LA_SIZE | LA_BLOCKS);
 956
 957         if (valid == 0)
 958                 GOTO(out, rc = 0);
 959
 960         if (valid & LA_FLAGS) {
 961                 struct lustre_mdt_attrs *lma;
 962                 struct lu_buf buf;
 963
 964                 if (la->la_flags & LUSTRE_LMA_FL_MASKS) {
 965                         CLASSERT(sizeof(info->oti_buf) >= sizeof(*lma));
 966                         lma = (struct lustre_mdt_attrs *)&info->oti_buf;
 967                         buf.lb_buf = lma;
 968                         buf.lb_len = sizeof(info->oti_buf);
 969                         rc = osd_xattr_get(env, &obj->oo_dt, &buf,
 970                                            XATTR_NAME_LMA);
 971                         if (rc > 0) {
 972                                 lma->lma_incompat =
 973                                         le32_to_cpu(lma->lma_incompat);
 974                                 lma->lma_incompat |=
 975                                         lustre_to_lma_flags(la->la_flags);
 976                                 lma->lma_incompat =
 977                                         cpu_to_le32(lma->lma_incompat);
 978                                 buf.lb_buf = lma;
 979                                 buf.lb_len = sizeof(*lma);
 980                                 rc = osd_xattr_set_internal(env, obj, &buf,
 981                                                             XATTR_NAME_LMA,
 982                                                             LU_XATTR_REPLACE,
 983                                                             oh);
 984                         }
 985                         if (rc < 0) {
 986                                 CWARN("%s: failed to set LMA flags: rc = %d\n",
 987                                        osd->od_svname, rc);
 988                                 RETURN(rc);
 989                         }
 990                 }
 991         }
 992
 993         OBD_ALLOC(bulk, sizeof(sa_bulk_attr_t) * 10);
 994         if (bulk == NULL)
 995                 GOTO(out, rc = -ENOMEM);
 996
 997         /* do both accounting updates outside oo_attr_lock below */
 998         if ((valid & LA_UID) && (la->la_uid != obj->oo_attr.la_uid)) {
 999                 /* Update user accounting. Failure isn't fatal, but we still
1000                  * log an error message */
1001                 rc = -zap_increment_int(osd->od_os, osd->od_iusr_oid,
1002                                         la->la_uid, 1, oh->ot_tx);
1003                 if (rc)
1004                         CERROR("%s: failed to update accounting ZAP for user "
1005                                 "%d (%d)\n", osd->od_svname, la->la_uid, rc);
1006                 rc = -zap_increment_int(osd->od_os, osd->od_iusr_oid,
1007                                         obj->oo_attr.la_uid, -1, oh->ot_tx);
1008                 if (rc)
1009                         CERROR("%s: failed to update accounting ZAP for user "
1010                                 "%d (%d)\n", osd->od_svname,
1011                                 obj->oo_attr.la_uid, rc);
1012         }
1013         if ((valid & LA_GID) && (la->la_gid != obj->oo_attr.la_gid)) {
1014                 /* Update group accounting. Failure isn't fatal, but we still
1015                  * log an error message */
1016                 rc = -zap_increment_int(osd->od_os, osd->od_igrp_oid,
1017                                         la->la_gid, 1, oh->ot_tx);
1018                 if (rc)
1019                         CERROR("%s: failed to update accounting ZAP for user "
1020                                 "%d (%d)\n", osd->od_svname, la->la_gid, rc);
1021                 rc = -zap_increment_int(osd->od_os, osd->od_igrp_oid,
1022                                         obj->oo_attr.la_gid, -1, oh->ot_tx);
1023                 if (rc)
1024                         CERROR("%s: failed to update accounting ZAP for user "
1025                                 "%d (%d)\n", osd->od_svname,
1026                                 obj->oo_attr.la_gid, rc);
1027         }
1028
1029         write_lock(&obj->oo_attr_lock);
1030         cnt = 0;
1031         if (valid & LA_ATIME) {
1032                 osa->atime[0] = obj->oo_attr.la_atime = la->la_atime;
1033                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(osd), NULL,
1034                                  osa->atime, 16);
1035         }
1036         if (valid & LA_MTIME) {
1037                 osa->mtime[0] = obj->oo_attr.la_mtime = la->la_mtime;
1038                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(osd), NULL,
1039                                  osa->mtime, 16);
1040         }
1041         if (valid & LA_CTIME) {
1042                 osa->ctime[0] = obj->oo_attr.la_ctime = la->la_ctime;
1043                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(osd), NULL,
1044                                  osa->ctime, 16);
1045         }
1046         if (valid & LA_MODE) {
1047                 /* mode is stored along with type, so read it first */
1048                 obj->oo_attr.la_mode = (obj->oo_attr.la_mode & S_IFMT) |
1049                         (la->la_mode & ~S_IFMT);
1050                 osa->mode = obj->oo_attr.la_mode;
1051                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(osd), NULL,
1052                                  &osa->mode, 8);
1053         }
1054         if (valid & LA_SIZE) {
1055                 osa->size = obj->oo_attr.la_size = la->la_size;
1056                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(osd), NULL,
1057                                  &osa->size, 8);
1058         }
1059         if (valid & LA_NLINK) {
1060                 osa->nlink = obj->oo_attr.la_nlink = la->la_nlink;
1061                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(osd), NULL,
1062                                  &osa->nlink, 8);
1063         }
1064         if (valid & LA_RDEV) {
1065                 osa->rdev = obj->oo_attr.la_rdev = la->la_rdev;
1066                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_RDEV(osd), NULL,
1067                                  &osa->rdev, 8);
1068         }
1069         if (valid & LA_FLAGS) {
1070                 osa->flags = attrs_fs2zfs(la->la_flags);
1071                 /* many flags are not supported by zfs, so ensure a good cached
1072                  * copy */
1073                 obj->oo_attr.la_flags = attrs_zfs2fs(osa->flags);
1074                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(osd), NULL,
1075                                  &osa->flags, 8);
1076         }
1077         if (valid & LA_UID) {
1078                 osa->uid = obj->oo_attr.la_uid = la->la_uid;
1079                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(osd), NULL,
1080                                  &osa->uid, 8);
1081         }
1082         if (valid & LA_GID) {
1083                 osa->gid = obj->oo_attr.la_gid = la->la_gid;
1084                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(osd), NULL,
1085                                  &osa->gid, 8);
1086         }
1087         obj->oo_attr.la_valid |= valid;
1088         write_unlock(&obj->oo_attr_lock);
1089
1090         rc = osd_object_sa_bulk_update(obj, bulk, cnt, oh);
1091
1092         OBD_FREE(bulk, sizeof(sa_bulk_attr_t) * 10);
1093 out:
1094         up_read(&obj->oo_guard);
1095         RETURN(rc);
1096 }
1097
1098 /*
1099  * Object creation.
1100  *
1101  * XXX temporary solution.
1102  */
1103
1104 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
1105                         struct dt_object *parent, struct dt_object *child,
1106                         umode_t child_mode)
1107 {
1108         LASSERT(ah);
1109
1110         ah->dah_parent = parent;
1111         ah->dah_mode = child_mode;
1112 }
1113
1114 static int osd_declare_object_create(const struct lu_env *env,
1115                                      struct dt_object *dt,
1116                                      struct lu_attr *attr,
1117                                      struct dt_allocation_hint *hint,
1118                                      struct dt_object_format *dof,
1119                                      struct thandle *handle)
1120 {
1121         char                    *buf = osd_oti_get(env)->oti_str;
1122         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
1123         struct osd_object       *obj = osd_dt_obj(dt);
1124         struct osd_device       *osd = osd_obj2dev(obj);
1125         struct osd_thandle      *oh;
1126         uint64_t                 zapid;
1127         int                      rc;
1128         ENTRY;
1129
1130         LASSERT(dof);
1131
1132         switch (dof->dof_type) {
1133                 case DFT_REGULAR:
1134                 case DFT_SYM:
1135                 case DFT_NODE:
1136                         if (obj->oo_dt.do_body_ops == NULL)
1137                                 obj->oo_dt.do_body_ops = &osd_body_ops;
1138                         break;
1139                 default:
1140                         break;
1141         }
1142
1143         LASSERT(handle != NULL);
1144         oh = container_of0(handle, struct osd_thandle, ot_super);
1145         LASSERT(oh->ot_tx != NULL);
1146
1147         switch (dof->dof_type) {
1148                 case DFT_DIR:
1149                         dt->do_index_ops = &osd_dir_ops;
1150                 case DFT_INDEX:
1151                         /* for zap create */
1152                         dmu_tx_hold_zap(oh->ot_tx, DMU_NEW_OBJECT, 1, NULL);
1153                         break;
1154                 case DFT_REGULAR:
1155                 case DFT_SYM:
1156                 case DFT_NODE:
1157                         /* first, we'll create new object */
1158                         dmu_tx_hold_bonus(oh->ot_tx, DMU_NEW_OBJECT);
1159                         break;
1160
1161                 default:
1162                         LBUG();
1163                         break;
1164         }
1165
1166         /* and we'll add it to some mapping */
1167         zapid = osd_get_name_n_idx(env, osd, fid, buf);
1168         dmu_tx_hold_bonus(oh->ot_tx, zapid);
1169         dmu_tx_hold_zap(oh->ot_tx, zapid, TRUE, buf);
1170
1171         /* we will also update inode accounting ZAPs */
1172         dmu_tx_hold_bonus(oh->ot_tx, osd->od_iusr_oid);
1173         dmu_tx_hold_zap(oh->ot_tx, osd->od_iusr_oid, TRUE, buf);
1174         dmu_tx_hold_bonus(oh->ot_tx, osd->od_igrp_oid);
1175         dmu_tx_hold_zap(oh->ot_tx, osd->od_igrp_oid, TRUE, buf);
1176
1177         dmu_tx_hold_sa_create(oh->ot_tx, ZFS_SA_BASE_ATTR_SIZE);
1178
1179         __osd_xattr_declare_set(env, obj, sizeof(struct lustre_mdt_attrs),
1180                                 XATTR_NAME_LMA, oh);
1181
1182         rc = osd_declare_quota(env, osd, attr->la_uid, attr->la_gid, 1, oh,
1183                                false, NULL, false);
1184         RETURN(rc);
1185 }
1186
1187 int __osd_attr_init(const struct lu_env *env, struct osd_device *osd,
1188                     uint64_t oid, dmu_tx_t *tx, struct lu_attr *la,
1189                     uint64_t parent)
1190 {
1191         sa_bulk_attr_t  *bulk;
1192         sa_handle_t     *sa_hdl;
1193         struct osa_attr *osa = &osd_oti_get(env)->oti_osa;
1194         uint64_t         gen;
1195         uint64_t         crtime[2];
1196         timestruc_t      now;
1197         int              cnt;
1198         int              rc;
1199
1200         gethrestime(&now);
1201         gen = dmu_tx_get_txg(tx);
1202
1203         ZFS_TIME_ENCODE(&now, crtime);
1204
1205         osa->atime[0] = la->la_atime;
1206         osa->ctime[0] = la->la_ctime;
1207         osa->mtime[0] = la->la_mtime;
1208         osa->mode = la->la_mode;
1209         osa->uid = la->la_uid;
1210         osa->gid = la->la_gid;
1211         osa->rdev = la->la_rdev;
1212         osa->nlink = la->la_nlink;
1213         osa->flags = attrs_fs2zfs(la->la_flags);
1214         osa->size  = la->la_size;
1215
1216         /* Now add in all of the "SA" attributes */
1217         rc = -sa_handle_get(osd->od_os, oid, NULL, SA_HDL_PRIVATE, &sa_hdl);
1218         if (rc)
1219                 return rc;
1220
1221         OBD_ALLOC(bulk, sizeof(sa_bulk_attr_t) * 13);
1222         if (bulk == NULL) {
1223                 rc = -ENOMEM;
1224                 goto out;
1225         }
1226         /*
1227          * we need to create all SA below upon object create.
1228          *
1229          * XXX The attribute order matters since the accounting callback relies
1230          * on static offsets (i.e. SA_*_OFFSET, see zfs_space_delta_cb()) to
1231          * look up the UID/GID attributes. Moreover, the callback does not seem
1232          * to support the spill block.
1233          * We define attributes in the same order as SA_*_OFFSET in order to
1234          * work around the problem. See ORI-610.
1235          */
1236         cnt = 0;
1237         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(osd), NULL, &osa->mode, 8);
1238         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(osd), NULL, &osa->size, 8);
1239         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GEN(osd), NULL, &gen, 8);
1240         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(osd), NULL, &osa->uid, 8);
1241         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(osd), NULL, &osa->gid, 8);
1242         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_PARENT(osd), NULL, &parent, 8);
1243         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(osd), NULL, &osa->flags, 8);
1244         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(osd), NULL, osa->atime, 16);
1245         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(osd), NULL, osa->mtime, 16);
1246         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(osd), NULL, osa->ctime, 16);
1247         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CRTIME(osd), NULL, crtime, 16);
1248         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(osd), NULL, &osa->nlink, 8);
1249         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_RDEV(osd), NULL, &osa->rdev, 8);
1250
1251         rc = -sa_replace_all_by_template(sa_hdl, bulk, cnt, tx);
1252
1253         OBD_FREE(bulk, sizeof(sa_bulk_attr_t) * 13);
1254 out:
1255         sa_handle_destroy(sa_hdl);
1256         return rc;
1257 }
1258
1259 /*
1260  * The transaction passed to this routine must have
1261  * dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT) called and then assigned
1262  * to a transaction group.
1263  */
1264 int __osd_object_create(const struct lu_env *env, struct osd_object *obj,
1265                         dmu_buf_t **dbp, dmu_tx_t *tx, struct lu_attr *la,
1266                         uint64_t parent)
1267 {
1268         uint64_t             oid;
1269         int                  rc;
1270         struct osd_device   *osd = osd_obj2dev(obj);
1271         const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
1272         dmu_object_type_t    type = DMU_OT_PLAIN_FILE_CONTENTS;
1273
1274         /* Assert that the transaction has been assigned to a
1275            transaction group. */
1276         LASSERT(tx->tx_txg != 0);
1277
1278         /* Use DMU_OTN_UINT8_METADATA for local objects so their data blocks
1279          * would get an additional ditto copy */
1280         if (unlikely(S_ISREG(la->la_mode) &&
1281                      fid_seq_is_local_file(fid_seq(fid))))
1282                 type = DMU_OTN_UINT8_METADATA;
1283
1284         /* Create a new DMU object. */
1285         oid = dmu_object_alloc(osd->od_os, type, 0,
1286                                DMU_OT_SA, DN_MAX_BONUSLEN, tx);
1287         rc = -sa_buf_hold(osd->od_os, oid, osd_obj_tag, dbp);
1288         LASSERTF(rc == 0, "sa_buf_hold "LPU64" failed: %d\n", oid, rc);
1289
1290         LASSERT(la->la_valid & LA_MODE);
1291         la->la_size = 0;
1292         la->la_nlink = 1;
1293
1294         rc = __osd_attr_init(env, osd, oid, tx, la, parent);
1295         if (rc != 0) {
1296                 sa_buf_rele(*dbp, osd_obj_tag);
1297                 *dbp = NULL;
1298                 dmu_object_free(osd->od_os, oid, tx);
1299                 return rc;
1300         }
1301
1302         return 0;
1303 }
1304
1305 /*
1306  * The transaction passed to this routine must have
1307  * dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, ...) called and then assigned
1308  * to a transaction group.
1309  *
1310  * Using ZAP_FLAG_HASH64 will force the ZAP to always be a FAT ZAP.
1311  * This is fine for directories today, because storing the FID in the dirent
1312  * will also require a FAT ZAP.  If there is a new type of micro ZAP created
1313  * then we might need to re-evaluate the use of this flag and instead do
1314  * a conversion from the different internal ZAP hash formats being used. */
1315 int __osd_zap_create(const struct lu_env *env, struct osd_device *osd,
1316                      dmu_buf_t **zap_dbp, dmu_tx_t *tx,
1317                      struct lu_attr *la, uint64_t parent, zap_flags_t flags)
1318 {
1319         uint64_t oid;
1320         int      rc;
1321
1322         /* Assert that the transaction has been assigned to a
1323            transaction group. */
1324         LASSERT(tx->tx_txg != 0);
1325
1326         oid = zap_create_flags(osd->od_os, 0, flags | ZAP_FLAG_HASH64,
1327                                DMU_OT_DIRECTORY_CONTENTS,
1328                                14, /* == ZFS fzap_default_block_shift */
1329                                DN_MAX_INDBLKSHIFT, /* indirect block shift */
1330                                DMU_OT_SA, DN_MAX_BONUSLEN, tx);
1331
1332         rc = -sa_buf_hold(osd->od_os, oid, osd_obj_tag, zap_dbp);
1333         if (rc)
1334                 return rc;
1335
1336         LASSERT(la->la_valid & LA_MODE);
1337         la->la_size = 2;
1338         la->la_nlink = 1;
1339
1340         return __osd_attr_init(env, osd, oid, tx, la, parent);
1341 }
1342
1343 static dmu_buf_t *osd_mkidx(const struct lu_env *env, struct osd_object *obj,
1344                             struct lu_attr *la, uint64_t parent,
1345                             struct osd_thandle *oh)
1346 {
1347         dmu_buf_t *db;
1348         int        rc;
1349
1350         /* Index file should be created as regular file in order not to confuse
1351          * ZPL which could interpret them as directory.
1352          * We set ZAP_FLAG_UINT64_KEY to let ZFS know than we are going to use
1353          * binary keys */
1354         LASSERT(S_ISREG(la->la_mode));
1355         rc = __osd_zap_create(env, osd_obj2dev(obj), &db, oh->ot_tx, la, parent,
1356                               ZAP_FLAG_UINT64_KEY);
1357         if (rc)
1358                 return ERR_PTR(rc);
1359         return db;
1360 }
1361
1362 static dmu_buf_t *osd_mkdir(const struct lu_env *env, struct osd_object *obj,
1363                             struct lu_attr *la, uint64_t parent,
1364                             struct osd_thandle *oh)
1365 {
1366         dmu_buf_t *db;
1367         int        rc;
1368
1369         LASSERT(S_ISDIR(la->la_mode));
1370         rc = __osd_zap_create(env, osd_obj2dev(obj), &db,
1371                               oh->ot_tx, la, parent, 0);
1372         if (rc)
1373                 return ERR_PTR(rc);
1374         return db;
1375 }
1376
1377 static dmu_buf_t *osd_mkreg(const struct lu_env *env, struct osd_object *obj,
1378                             struct lu_attr *la, uint64_t parent,
1379                             struct osd_thandle *oh)
1380 {
1381         dmu_buf_t         *db;
1382         int                rc;
1383         struct osd_device *osd = osd_obj2dev(obj);
1384
1385         LASSERT(S_ISREG(la->la_mode));
1386         rc = __osd_object_create(env, obj, &db, oh->ot_tx, la, parent);
1387         if (rc)
1388                 return ERR_PTR(rc);
1389
1390         /*
1391          * XXX: This heuristic is non-optimal.  It would be better to
1392          * increase the blocksize up to osd->od_max_blksz during the write.
1393          * This is exactly how the ZPL behaves and it ensures that the right
1394          * blocksize is selected based on the file size rather than the
1395          * making broad assumptions based on the osd type.
1396          */
1397         if (!lu_device_is_md(osd2lu_dev(osd))) {
1398                 rc = -dmu_object_set_blocksize(osd->od_os, db->db_object,
1399                                                osd->od_max_blksz, 0, oh->ot_tx);
1400                 if (unlikely(rc)) {
1401                         CERROR("%s: can't change blocksize: %d\n",
1402                                osd->od_svname, rc);
1403                         return ERR_PTR(rc);
1404                 }
1405         }
1406
1407         return db;
1408 }
1409
1410 static dmu_buf_t *osd_mksym(const struct lu_env *env, struct osd_object *obj,
1411                             struct lu_attr *la, uint64_t parent,
1412                             struct osd_thandle *oh)
1413 {
1414         dmu_buf_t *db;
1415         int        rc;
1416
1417         LASSERT(S_ISLNK(la->la_mode));
1418         rc = __osd_object_create(env, obj, &db, oh->ot_tx, la, parent);
1419         if (rc)
1420                 return ERR_PTR(rc);
1421         return db;
1422 }
1423
1424 static dmu_buf_t *osd_mknod(const struct lu_env *env, struct osd_object *obj,
1425                             struct lu_attr *la, uint64_t parent,
1426                             struct osd_thandle *oh)
1427 {
1428         dmu_buf_t *db;
1429         int        rc;
1430
1431         la->la_valid = LA_MODE;
1432         if (S_ISCHR(la->la_mode) || S_ISBLK(la->la_mode))
1433                 la->la_valid |= LA_RDEV;
1434
1435         rc = __osd_object_create(env, obj, &db, oh->ot_tx, la, parent);
1436         if (rc)
1437                 return ERR_PTR(rc);
1438         return db;
1439 }
1440
1441 typedef dmu_buf_t *(*osd_obj_type_f)(const struct lu_env *env,
1442                                      struct osd_object *obj,
1443                                      struct lu_attr *la,
1444                                      uint64_t parent,
1445                                      struct osd_thandle *oh);
1446
1447 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
1448 {
1449         osd_obj_type_f result;
1450
1451         switch (type) {
1452         case DFT_DIR:
1453                 result = osd_mkdir;
1454                 break;
1455         case DFT_INDEX:
1456                 result = osd_mkidx;
1457                 break;
1458         case DFT_REGULAR:
1459                 result = osd_mkreg;
1460                 break;
1461         case DFT_SYM:
1462                 result = osd_mksym;
1463                 break;
1464         case DFT_NODE:
1465                 result = osd_mknod;
1466                 break;
1467         default:
1468                 LBUG();
1469                 break;
1470         }
1471         return result;
1472 }
1473
1474 /*
1475  * Primitives for directory (i.e. ZAP) handling
1476  */
1477 static inline int osd_init_lma(const struct lu_env *env, struct osd_object *obj,
1478                                const struct lu_fid *fid, struct osd_thandle *oh)
1479 {
1480         struct osd_thread_info  *info = osd_oti_get(env);
1481         struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
1482         struct lu_buf            buf;
1483         int rc;
1484
1485         lustre_lma_init(lma, fid, 0, 0);
1486         lustre_lma_swab(lma);
1487         buf.lb_buf = lma;
1488         buf.lb_len = sizeof(*lma);
1489
1490         rc = osd_xattr_set_internal(env, obj, &buf, XATTR_NAME_LMA,
1491                                     LU_XATTR_CREATE, oh);
1492
1493         return rc;
1494 }
1495
1496 /*
1497  * Concurrency: @dt is write locked.
1498  */
1499 static int osd_object_create(const struct lu_env *env, struct dt_object *dt,
1500                              struct lu_attr *attr,
1501                              struct dt_allocation_hint *hint,
1502                              struct dt_object_format *dof,
1503                              struct thandle *th)
1504 {
1505         struct zpl_direntry     *zde = &osd_oti_get(env)->oti_zde.lzd_reg;
1506         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
1507         struct osd_object       *obj = osd_dt_obj(dt);
1508         struct osd_device       *osd = osd_obj2dev(obj);
1509         char                    *buf = osd_oti_get(env)->oti_str;
1510         struct osd_thandle      *oh;
1511         dmu_buf_t               *db;
1512         uint64_t                 zapid;
1513         int                      rc;
1514
1515         ENTRY;
1516
1517         /* concurrent create declarations should not see
1518          * the object inconsistent (db, attr, etc).
1519          * in regular cases acquisition should be cheap */
1520         down_write(&obj->oo_guard);
1521
1522         if (unlikely(dt_object_exists(dt)))
1523                 GOTO(out, rc = -EEXIST);
1524
1525         LASSERT(osd_invariant(obj));
1526         LASSERT(dof != NULL);
1527
1528         LASSERT(th != NULL);
1529         oh = container_of0(th, struct osd_thandle, ot_super);
1530
1531         /*
1532          * XXX missing: Quote handling.
1533          */
1534
1535         LASSERT(obj->oo_db == NULL);
1536
1537         /* to follow ZFS on-disk format we need
1538          * to initialize parent dnode properly */
1539         zapid = 0;
1540         if (hint != NULL && hint->dah_parent != NULL &&
1541             !dt_object_remote(hint->dah_parent))
1542                 zapid = osd_dt_obj(hint->dah_parent)->oo_db->db_object;
1543
1544         db = osd_create_type_f(dof->dof_type)(env, obj, attr, zapid, oh);
1545         if (IS_ERR(db))
1546                 GOTO(out, rc = PTR_ERR(db));
1547
1548         zde->zde_pad = 0;
1549         zde->zde_dnode = db->db_object;
1550         zde->zde_type = IFTODT(attr->la_mode & S_IFMT);
1551
1552         zapid = osd_get_name_n_idx(env, osd, fid, buf);
1553
1554         rc = -zap_add(osd->od_os, zapid, buf, 8, 1, zde, oh->ot_tx);
1555         if (rc)
1556                 GOTO(out, rc);
1557
1558         /* Add new object to inode accounting.
1559          * Errors are not considered as fatal */
1560         rc = -zap_increment_int(osd->od_os, osd->od_iusr_oid,
1561                                 (attr->la_valid & LA_UID) ? attr->la_uid : 0, 1,
1562                                 oh->ot_tx);
1563         if (rc)
1564                 CERROR("%s: failed to add "DFID" to accounting ZAP for usr %d "
1565                         "(%d)\n", osd->od_svname, PFID(fid), attr->la_uid, rc);
1566         rc = -zap_increment_int(osd->od_os, osd->od_igrp_oid,
1567                                 (attr->la_valid & LA_GID) ? attr->la_gid : 0, 1,
1568                                 oh->ot_tx);
1569         if (rc)
1570                 CERROR("%s: failed to add "DFID" to accounting ZAP for grp %d "
1571                         "(%d)\n", osd->od_svname, PFID(fid), attr->la_gid, rc);
1572
1573         /* configure new osd object */
1574         obj->oo_db = db;
1575         rc = osd_object_init0(env, obj);
1576         LASSERT(ergo(rc == 0, dt_object_exists(dt)));
1577         LASSERT(osd_invariant(obj));
1578
1579         rc = osd_init_lma(env, obj, fid, oh);
1580         if (rc != 0)
1581                 CERROR("%s: can not set LMA on "DFID": rc = %d\n",
1582                        osd->od_svname, PFID(fid), rc);
1583
1584 out:
1585         up_write(&obj->oo_guard);
1586         RETURN(rc);
1587 }
1588
1589 static int osd_declare_object_ref_add(const struct lu_env *env,
1590                                       struct dt_object *dt,
1591                                       struct thandle *th)
1592 {
1593         return osd_declare_attr_set(env, dt, NULL, th);
1594 }
1595
1596 /*
1597  * Concurrency: @dt is write locked.
1598  */
1599 static int osd_object_ref_add(const struct lu_env *env,
1600                               struct dt_object *dt,
1601                               struct thandle *handle)
1602 {
1603         struct osd_object       *obj = osd_dt_obj(dt);
1604         struct osd_thandle      *oh;
1605         struct osd_device       *osd = osd_obj2dev(obj);
1606         uint64_t                 nlink;
1607         int rc;
1608
1609         ENTRY;
1610
1611         down_read(&obj->oo_guard);
1612         if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
1613                 GOTO(out, rc = -ENOENT);
1614
1615         LASSERT(osd_invariant(obj));
1616         LASSERT(obj->oo_sa_hdl != NULL);
1617
1618         oh = container_of0(handle, struct osd_thandle, ot_super);
1619
1620         write_lock(&obj->oo_attr_lock);
1621         nlink = ++obj->oo_attr.la_nlink;
1622         write_unlock(&obj->oo_attr_lock);
1623
1624         rc = osd_object_sa_update(obj, SA_ZPL_LINKS(osd), &nlink, 8, oh);
1625
1626 out:
1627         up_read(&obj->oo_guard);
1628         RETURN(rc);
1629 }
1630
1631 static int osd_declare_object_ref_del(const struct lu_env *env,
1632                                       struct dt_object *dt,
1633                                       struct thandle *handle)
1634 {
1635         return osd_declare_attr_set(env, dt, NULL, handle);
1636 }
1637
1638 /*
1639  * Concurrency: @dt is write locked.
1640  */
1641 static int osd_object_ref_del(const struct lu_env *env,
1642                               struct dt_object *dt,
1643                               struct thandle *handle)
1644 {
1645         struct osd_object       *obj = osd_dt_obj(dt);
1646         struct osd_thandle      *oh;
1647         struct osd_device       *osd = osd_obj2dev(obj);
1648         uint64_t                 nlink;
1649         int                      rc;
1650
1651         ENTRY;
1652
1653         down_read(&obj->oo_guard);
1654
1655         if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
1656                 GOTO(out, rc = -ENOENT);
1657
1658         LASSERT(osd_invariant(obj));
1659         LASSERT(obj->oo_sa_hdl != NULL);
1660
1661         oh = container_of0(handle, struct osd_thandle, ot_super);
1662         LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
1663
1664         write_lock(&obj->oo_attr_lock);
1665         nlink = --obj->oo_attr.la_nlink;
1666         write_unlock(&obj->oo_attr_lock);
1667
1668         rc = osd_object_sa_update(obj, SA_ZPL_LINKS(osd), &nlink, 8, oh);
1669
1670 out:
1671         up_read(&obj->oo_guard);
1672         RETURN(rc);
1673 }
1674
1675 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt,
1676                            __u64 start, __u64 end)
1677 {
1678         struct osd_device *osd = osd_obj2dev(osd_dt_obj(dt));
1679         ENTRY;
1680
1681         /* XXX: no other option than syncing the whole filesystem until we
1682          * support ZIL.  If the object tracked the txg that it was last
1683          * modified in, it could pass that txg here instead of "0".  Maybe
1684          * the changes are already committed, so no wait is needed at all? */
1685         txg_wait_synced(dmu_objset_pool(osd->od_os), 0ULL);
1686
1687         RETURN(0);
1688 }
1689
1690 static struct dt_object_operations osd_obj_ops = {
1691         .do_read_lock           = osd_object_read_lock,
1692         .do_write_lock          = osd_object_write_lock,
1693         .do_read_unlock         = osd_object_read_unlock,
1694         .do_write_unlock        = osd_object_write_unlock,
1695         .do_write_locked        = osd_object_write_locked,
1696         .do_attr_get            = osd_attr_get,
1697         .do_declare_attr_set    = osd_declare_attr_set,
1698         .do_attr_set            = osd_attr_set,
1699         .do_ah_init             = osd_ah_init,
1700         .do_declare_create      = osd_declare_object_create,
1701         .do_create              = osd_object_create,
1702         .do_declare_destroy     = osd_declare_object_destroy,
1703         .do_destroy             = osd_object_destroy,
1704         .do_index_try           = osd_index_try,
1705         .do_declare_ref_add     = osd_declare_object_ref_add,
1706         .do_ref_add             = osd_object_ref_add,
1707         .do_declare_ref_del     = osd_declare_object_ref_del,
1708         .do_ref_del             = osd_object_ref_del,
1709         .do_xattr_get           = osd_xattr_get,
1710         .do_declare_xattr_set   = osd_declare_xattr_set,
1711         .do_xattr_set           = osd_xattr_set,
1712         .do_declare_xattr_del   = osd_declare_xattr_del,
1713         .do_xattr_del           = osd_xattr_del,
1714         .do_xattr_list          = osd_xattr_list,
1715         .do_object_sync         = osd_object_sync,
1716 };
1717
1718 static struct lu_object_operations osd_lu_obj_ops = {
1719         .loo_object_init        = osd_object_init,
1720         .loo_object_delete      = osd_object_delete,
1721         .loo_object_release     = osd_object_release,
1722         .loo_object_free        = osd_object_free,
1723         .loo_object_print       = osd_object_print,
1724         .loo_object_invariant   = osd_object_invariant,
1725 };
1726
1727 static int osd_otable_it_attr_get(const struct lu_env *env,
1728                                 struct dt_object *dt,
1729                                 struct lu_attr *attr)
1730 {
1731         attr->la_valid = 0;
1732         return 0;
1733 }
1734
1735 static struct dt_object_operations osd_obj_otable_it_ops = {
1736         .do_attr_get    = osd_otable_it_attr_get,
1737         .do_index_try   = osd_index_try,
1738 };