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 /*
  31  * Copyright (c) 2012, 2013, Intel Corporation.
  32  * Use is subject to license terms.
  33  */
  34 /*
  35  * This file is part of Lustre, http://www.lustre.org/
  36  * Lustre is a trademark of Sun Microsystems, Inc.
  37  *
  38  * lustre/osd-zfs/osd_object.c
  39  *
  40  * Author: Alex Zhuravlev <bzzz@whamcloud.com>
  41  * Author: Mike Pershin <tappro@whamcloud.com>
  42  * Author: Johann Lombardi <johann@whamcloud.com>
  43  */
  44
  45 #define DEBUG_SUBSYSTEM S_OSD
  46
  47 #include <lustre_ver.h>
  48 #include <libcfs/libcfs.h>
  49 #include <obd_support.h>
  50 #include <lustre_net.h>
  51 #include <obd.h>
  52 #include <obd_class.h>
  53 #include <lustre_disk.h>
  54 #include <lustre_fid.h>
  55
  56 #include "osd_internal.h"
  57
  58 #include <sys/dnode.h>
  59 #include <sys/dbuf.h>
  60 #include <sys/spa.h>
  61 #include <sys/stat.h>
  62 #include <sys/zap.h>
  63 #include <sys/spa_impl.h>
  64 #include <sys/zfs_znode.h>
  65 #include <sys/dmu_tx.h>
  66 #include <sys/dmu_objset.h>
  67 #include <sys/dsl_prop.h>
  68 #include <sys/sa_impl.h>
  69 #include <sys/txg.h>
  70
  71 static char *osd_obj_tag = "osd_object";
  72
  73 static struct dt_object_operations osd_obj_ops;
  74 static struct lu_object_operations osd_lu_obj_ops;
  75 extern struct dt_body_operations osd_body_ops;
  76 static struct dt_object_operations osd_obj_otable_it_ops;
  77
  78 extern struct kmem_cache *osd_object_kmem;
  79
  80 static void
  81 osd_object_sa_fini(struct osd_object *obj)
  82 {
  83         if (obj->oo_sa_hdl) {
  84                 sa_handle_destroy(obj->oo_sa_hdl);
  85                 obj->oo_sa_hdl = NULL;
  86         }
  87 }
  88
  89 static int
  90 osd_object_sa_init(struct osd_object *obj, udmu_objset_t *uos)
  91 {
  92         int rc;
  93
  94         LASSERT(obj->oo_sa_hdl == NULL);
  95         LASSERT(obj->oo_db != NULL);
  96
  97         rc = -sa_handle_get(uos->os, obj->oo_db->db_object, obj,
  98                             SA_HDL_PRIVATE, &obj->oo_sa_hdl);
  99         if (rc)
 100                 return rc;
 101
 102         /* Cache the xattr object id, valid for the life of the object */
 103         rc = -sa_lookup(obj->oo_sa_hdl, SA_ZPL_XATTR(uos), &obj->oo_xattr, 8);
 104         if (rc == -ENOENT) {
 105                 obj->oo_xattr = ZFS_NO_OBJECT;
 106                 rc = 0;
 107         } else if (rc) {
 108                 osd_object_sa_fini(obj);
 109         }
 110
 111         return rc;
 112 }
 113
 114 /*
 115  * Add object to list of dirty objects in tx handle.
 116  */
 117 static void
 118 osd_object_sa_dirty_add(struct osd_object *obj, struct osd_thandle *oh)
 119 {
 120         if (!cfs_list_empty(&obj->oo_sa_linkage))
 121                 return;
 122
 123         down(&oh->ot_sa_lock);
 124         write_lock(&obj->oo_attr_lock);
 125         if (likely(cfs_list_empty(&obj->oo_sa_linkage)))
 126                 cfs_list_add(&obj->oo_sa_linkage, &oh->ot_sa_list);
 127         write_unlock(&obj->oo_attr_lock);
 128         up(&oh->ot_sa_lock);
 129 }
 130
 131 /*
 132  * Release spill block dbuf hold for all dirty SAs.
 133  */
 134 void osd_object_sa_dirty_rele(struct osd_thandle *oh)
 135 {
 136         struct osd_object *obj;
 137
 138         down(&oh->ot_sa_lock);
 139         while (!cfs_list_empty(&oh->ot_sa_list)) {
 140                 obj = cfs_list_entry(oh->ot_sa_list.next,
 141                                      struct osd_object, oo_sa_linkage);
 142                 sa_spill_rele(obj->oo_sa_hdl);
 143                 write_lock(&obj->oo_attr_lock);
 144                 cfs_list_del_init(&obj->oo_sa_linkage);
 145                 write_unlock(&obj->oo_attr_lock);
 146         }
 147         up(&oh->ot_sa_lock);
 148 }
 149
 150 /*
 151  * Update the SA and add the object to the dirty list.
 152  */
 153 int osd_object_sa_update(struct osd_object *obj, sa_attr_type_t type,
 154                          void *buf, uint32_t buflen, struct osd_thandle *oh)
 155 {
 156         int rc;
 157
 158         LASSERT(obj->oo_sa_hdl != NULL);
 159         LASSERT(oh->ot_tx != NULL);
 160
 161         rc = -sa_update(obj->oo_sa_hdl, type, buf, buflen, oh->ot_tx);
 162         osd_object_sa_dirty_add(obj, oh);
 163
 164         return rc;
 165 }
 166
 167 /*
 168  * Bulk update the SA and add the object to the dirty list.
 169  */
 170 static int
 171 osd_object_sa_bulk_update(struct osd_object *obj, sa_bulk_attr_t *attrs,
 172                           int count, struct osd_thandle *oh)
 173 {
 174         int rc;
 175
 176         LASSERT(obj->oo_sa_hdl != NULL);
 177         LASSERT(oh->ot_tx != NULL);
 178
 179         rc = -sa_bulk_update(obj->oo_sa_hdl, attrs, count, oh->ot_tx);
 180         osd_object_sa_dirty_add(obj, oh);
 181
 182         return rc;
 183 }
 184
 185 /*
 186  * Retrieve the attributes of a DMU object
 187  */
 188 int __osd_object_attr_get(const struct lu_env *env, udmu_objset_t *uos,
 189                           struct osd_object *obj, struct lu_attr *la)
 190 {
 191         struct osa_attr *osa = &osd_oti_get(env)->oti_osa;
 192         sa_handle_t     *sa_hdl;
 193         sa_bulk_attr_t  *bulk;
 194         int              cnt = 0;
 195         int              rc;
 196         ENTRY;
 197
 198         LASSERT(obj->oo_db != NULL);
 199
 200         rc = -sa_handle_get(uos->os, obj->oo_db->db_object, NULL,
 201                             SA_HDL_PRIVATE, &sa_hdl);
 202         if (rc)
 203                 RETURN(rc);
 204
 205         OBD_ALLOC(bulk, sizeof(sa_bulk_attr_t) * 9);
 206         if (bulk == NULL)
 207                 GOTO(out_sa, rc = -ENOMEM);
 208
 209         la->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE | LA_TYPE |
 210                         LA_SIZE | LA_UID | LA_GID | LA_FLAGS | LA_NLINK;
 211
 212         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(uos), NULL, osa->atime, 16);
 213         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(uos), NULL, osa->mtime, 16);
 214         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(uos), NULL, osa->ctime, 16);
 215         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(uos), NULL, &osa->mode, 8);
 216         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(uos), NULL, &osa->size, 8);
 217         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(uos), NULL, &osa->nlink, 8);
 218         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(uos), NULL, &osa->uid, 8);
 219         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(uos), NULL, &osa->gid, 8);
 220         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(uos), NULL, &osa->flags, 8);
 221
 222         rc = -sa_bulk_lookup(sa_hdl, bulk, cnt);
 223         if (rc)
 224                 GOTO(out_bulk, rc);
 225
 226         la->la_atime = osa->atime[0];
 227         la->la_mtime = osa->mtime[0];
 228         la->la_ctime = osa->ctime[0];
 229         la->la_mode = osa->mode;
 230         la->la_uid = osa->uid;
 231         la->la_gid = osa->gid;
 232         la->la_nlink = osa->nlink;
 233         la->la_flags = attrs_zfs2fs(osa->flags);
 234         la->la_size = osa->size;
 235
 236         if (S_ISCHR(la->la_mode) || S_ISBLK(la->la_mode)) {
 237                 rc = -sa_lookup(sa_hdl, SA_ZPL_RDEV(uos), &osa->rdev, 8);
 238                 if (rc)
 239                         GOTO(out_bulk, rc);
 240                 la->la_rdev = osa->rdev;
 241                 la->la_valid |= LA_RDEV;
 242         }
 243 out_bulk:
 244         OBD_FREE(bulk, sizeof(sa_bulk_attr_t) * 9);
 245 out_sa:
 246         sa_handle_destroy(sa_hdl);
 247
 248         RETURN(rc);
 249 }
 250
 251 int __osd_obj2dbuf(const struct lu_env *env, objset_t *os,
 252                    uint64_t oid, dmu_buf_t **dbp, void *tag)
 253 {
 254         dmu_object_info_t *doi = &osd_oti_get(env)->oti_doi;
 255         int rc;
 256
 257         LASSERT(tag);
 258
 259         rc = -sa_buf_hold(os, oid, tag, dbp);
 260         if (rc)
 261                 return rc;
 262
 263         dmu_object_info_from_db(*dbp, doi);
 264         if (unlikely (oid != DMU_USERUSED_OBJECT &&
 265             oid != DMU_GROUPUSED_OBJECT && doi->doi_bonus_type != DMU_OT_SA)) {
 266                 sa_buf_rele(*dbp, tag);
 267                 *dbp = NULL;
 268                 return -EINVAL;
 269         }
 270
 271         LASSERT(*dbp);
 272         LASSERT((*dbp)->db_object == oid);
 273         LASSERT((*dbp)->db_offset == -1);
 274         LASSERT((*dbp)->db_data != NULL);
 275
 276         return 0;
 277 }
 278
 279 /*
 280  * Concurrency: no concurrent access is possible that early in object
 281  * life-cycle.
 282  */
 283 struct lu_object *osd_object_alloc(const struct lu_env *env,
 284                                    const struct lu_object_header *hdr,
 285                                    struct lu_device *d)
 286 {
 287         struct osd_object *mo;
 288
 289         OBD_SLAB_ALLOC_PTR_GFP(mo, osd_object_kmem, GFP_NOFS);
 290         if (mo != NULL) {
 291                 struct lu_object *l;
 292
 293                 l = &mo->oo_dt.do_lu;
 294                 dt_object_init(&mo->oo_dt, NULL, d);
 295                 mo->oo_dt.do_ops = &osd_obj_ops;
 296                 l->lo_ops = &osd_lu_obj_ops;
 297                 CFS_INIT_LIST_HEAD(&mo->oo_sa_linkage);
 298                 init_rwsem(&mo->oo_sem);
 299                 sema_init(&mo->oo_guard, 1);
 300                 rwlock_init(&mo->oo_attr_lock);
 301                 return l;
 302         } else {
 303                 return NULL;
 304         }
 305 }
 306
 307 /*
 308  * Concurrency: shouldn't matter.
 309  */
 310 int osd_object_init0(const struct lu_env *env, struct osd_object *obj)
 311 {
 312         struct osd_device       *osd = osd_obj2dev(obj);
 313         udmu_objset_t           *uos = &osd->od_objset;
 314         const struct lu_fid     *fid  = lu_object_fid(&obj->oo_dt.do_lu);
 315         int                      rc = 0;
 316         ENTRY;
 317
 318         if (obj->oo_db == NULL)
 319                 RETURN(0);
 320
 321         /* object exist */
 322
 323         rc = osd_object_sa_init(obj, uos);
 324         if (rc)
 325                 RETURN(rc);
 326
 327         /* cache attrs in object */
 328         rc = __osd_object_attr_get(env, &osd->od_objset,
 329                                    obj, &obj->oo_attr);
 330         if (rc)
 331                 RETURN(rc);
 332
 333         if (likely(!fid_is_acct(fid)))
 334                 /* no body operations for accounting objects */
 335                 obj->oo_dt.do_body_ops = &osd_body_ops;
 336
 337         /*
 338          * initialize object before marking it existing
 339          */
 340         obj->oo_dt.do_lu.lo_header->loh_attr |= obj->oo_attr.la_mode & S_IFMT;
 341
 342         smp_mb();
 343         obj->oo_dt.do_lu.lo_header->loh_attr |= LOHA_EXISTS;
 344
 345         RETURN(0);
 346 }
 347
 348 static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
 349 {
 350         struct osd_thread_info  *info = osd_oti_get(env);
 351         struct lu_buf           buf;
 352         int                     rc;
 353         struct lustre_mdt_attrs *lma;
 354         ENTRY;
 355
 356         CLASSERT(sizeof(info->oti_buf) >= sizeof(*lma));
 357         lma = (struct lustre_mdt_attrs *)info->oti_buf;
 358         buf.lb_buf = lma;
 359         buf.lb_len = sizeof(info->oti_buf);
 360
 361         rc = osd_xattr_get(env, &obj->oo_dt, &buf, XATTR_NAME_LMA, BYPASS_CAPA);
 362         if (rc > 0) {
 363                 rc = 0;
 364                 lustre_lma_swab(lma);
 365                 if (unlikely((lma->lma_incompat & ~LMA_INCOMPAT_SUPP) ||
 366                              CFS_FAIL_CHECK(OBD_FAIL_OSD_LMA_INCOMPAT))) {
 367                         CWARN("%s: unsupported incompat LMA feature(s) %#x for "
 368                               "fid = "DFID"\n", osd_obj2dev(obj)->od_svname,
 369                               lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
 370                               PFID(lu_object_fid(&obj->oo_dt.do_lu)));
 371                         rc = -EOPNOTSUPP;
 372                 }
 373         } else if (rc == -ENODATA) {
 374                 /* haven't initialize LMA xattr */
 375                 rc = 0;
 376         }
 377
 378         RETURN(rc);
 379 }
 380
 381 /*
 382  * Concurrency: no concurrent access is possible that early in object
 383  * life-cycle.
 384  */
 385 static int osd_object_init(const struct lu_env *env, struct lu_object *l,
 386                            const struct lu_object_conf *conf)
 387 {
 388         struct osd_object       *obj = osd_obj(l);
 389         struct osd_device       *osd = osd_obj2dev(obj);
 390         uint64_t                 oid;
 391         int                      rc;
 392         ENTRY;
 393
 394         LASSERT(osd_invariant(obj));
 395
 396         if (fid_is_otable_it(&l->lo_header->loh_fid)) {
 397                 obj->oo_dt.do_ops = &osd_obj_otable_it_ops;
 398                 l->lo_header->loh_attr |= LOHA_EXISTS;
 399                 RETURN(0);
 400         }
 401
 402         rc = osd_fid_lookup(env, osd, lu_object_fid(l), &oid);
 403         if (rc == 0) {
 404                 LASSERT(obj->oo_db == NULL);
 405                 rc = __osd_obj2dbuf(env, osd->od_objset.os, oid,
 406                                         &obj->oo_db, osd_obj_tag);
 407                 if (rc != 0) {
 408                         CERROR("%s: lookup "DFID"/"LPX64" failed: rc = %d\n",
 409                                osd->od_svname, PFID(lu_object_fid(l)), oid, rc);
 410                         GOTO(out, rc);
 411                 }
 412                 LASSERT(obj->oo_db);
 413                 rc = osd_object_init0(env, obj);
 414                 if (rc != 0)
 415                         GOTO(out, rc);
 416
 417                 rc = osd_check_lma(env, obj);
 418                 if (rc != 0)
 419                         GOTO(out, rc);
 420         } else if (rc == -ENOENT) {
 421                 rc = 0;
 422         }
 423         LASSERT(osd_invariant(obj));
 424 out:
 425         RETURN(rc);
 426 }
 427
 428 /*
 429  * Concurrency: no concurrent access is possible that late in object
 430  * life-cycle.
 431  */
 432 static void osd_object_free(const struct lu_env *env, struct lu_object *l)
 433 {
 434         struct osd_object *obj = osd_obj(l);
 435
 436         LASSERT(osd_invariant(obj));
 437
 438         dt_object_fini(&obj->oo_dt);
 439         OBD_SLAB_FREE_PTR(obj, osd_object_kmem);
 440 }
 441
 442 static void __osd_declare_object_destroy(const struct lu_env *env,
 443                                          struct osd_object *obj,
 444                                          struct osd_thandle *oh)
 445 {
 446         struct osd_device       *osd = osd_obj2dev(obj);
 447         udmu_objset_t           *uos = &osd->od_objset;
 448         dmu_buf_t               *db = obj->oo_db;
 449         zap_attribute_t         *za = &osd_oti_get(env)->oti_za;
 450         uint64_t                 oid = db->db_object, xid;
 451         dmu_tx_t                *tx = oh->ot_tx;
 452         zap_cursor_t            *zc;
 453         int                      rc = 0;
 454
 455         dmu_tx_hold_free(tx, oid, 0, DMU_OBJECT_END);
 456
 457         /* zap holding xattrs */
 458         if (obj->oo_xattr != ZFS_NO_OBJECT) {
 459                 oid = obj->oo_xattr;
 460
 461                 dmu_tx_hold_free(tx, oid, 0, DMU_OBJECT_END);
 462
 463                 rc = -udmu_zap_cursor_init(&zc, uos, oid, 0);
 464                 if (rc)
 465                         goto out;
 466
 467                 while ((rc = -zap_cursor_retrieve(zc, za)) == 0) {
 468                         BUG_ON(za->za_integer_length != sizeof(uint64_t));
 469                         BUG_ON(za->za_num_integers != 1);
 470
 471                         rc = -zap_lookup(uos->os, obj->oo_xattr, za->za_name,
 472                                          sizeof(uint64_t), 1, &xid);
 473                         if (rc) {
 474                                 CERROR("%s: xattr lookup failed: rc = %d\n",
 475                                        osd->od_svname, rc);
 476                                 goto out_err;
 477                         }
 478                         dmu_tx_hold_free(tx, xid, 0, DMU_OBJECT_END);
 479
 480                         zap_cursor_advance(zc);
 481                 }
 482                 if (rc == -ENOENT)
 483                         rc = 0;
 484 out_err:
 485                 udmu_zap_cursor_fini(zc);
 486         }
 487 out:
 488         if (rc && tx->tx_err == 0)
 489                 tx->tx_err = -rc;
 490 }
 491
 492 static int osd_declare_object_destroy(const struct lu_env *env,
 493                                       struct dt_object *dt,
 494                                       struct thandle *th)
 495 {
 496         char                    *buf = osd_oti_get(env)->oti_str;
 497         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
 498         struct osd_object       *obj = osd_dt_obj(dt);
 499         struct osd_device       *osd = osd_obj2dev(obj);
 500         struct osd_thandle      *oh;
 501         uint64_t                 zapid;
 502         int                      rc;
 503         ENTRY;
 504
 505         LASSERT(th != NULL);
 506         LASSERT(dt_object_exists(dt));
 507
 508         oh = container_of0(th, struct osd_thandle, ot_super);
 509         LASSERT(oh->ot_tx != NULL);
 510
 511         /* declare that we'll destroy the object */
 512         __osd_declare_object_destroy(env, obj, oh);
 513
 514         /* declare that we'll remove object from fid-dnode mapping */
 515         zapid = osd_get_name_n_idx(env, osd, fid, buf);
 516         dmu_tx_hold_bonus(oh->ot_tx, zapid);
 517         dmu_tx_hold_zap(oh->ot_tx, zapid, 0, buf);
 518
 519         /* declare that we'll remove object from inode accounting ZAPs */
 520         dmu_tx_hold_bonus(oh->ot_tx, osd->od_iusr_oid);
 521         dmu_tx_hold_zap(oh->ot_tx, osd->od_iusr_oid, 0, buf);
 522         dmu_tx_hold_bonus(oh->ot_tx, osd->od_igrp_oid);
 523         dmu_tx_hold_zap(oh->ot_tx, osd->od_igrp_oid, 0, buf);
 524
 525         /* one less inode */
 526         rc = osd_declare_quota(env, osd, obj->oo_attr.la_uid,
 527                                obj->oo_attr.la_gid, -1, oh, false, NULL, false);
 528         if (rc)
 529                 RETURN(rc);
 530
 531         /* data to be truncated */
 532         rc = osd_declare_quota(env, osd, obj->oo_attr.la_uid,
 533                                obj->oo_attr.la_gid, 0, oh, true, NULL, false);
 534         RETURN(rc);
 535 }
 536
 537 int __osd_object_free(udmu_objset_t *uos, uint64_t oid, dmu_tx_t *tx)
 538 {
 539         LASSERT(uos->objects != 0);
 540         spin_lock(&uos->lock);
 541         uos->objects--;
 542         spin_unlock(&uos->lock);
 543
 544         return -dmu_object_free(uos->os, oid, tx);
 545 }
 546
 547 /*
 548  * Delete a DMU object
 549  *
 550  * The transaction passed to this routine must have
 551  * dmu_tx_hold_free(tx, oid, 0, DMU_OBJECT_END) called
 552  * and then assigned to a transaction group.
 553  *
 554  * This will release db and set it to NULL to prevent further dbuf releases.
 555  */
 556 static int __osd_object_destroy(const struct lu_env *env,
 557                                 struct osd_object *obj,
 558                                 dmu_tx_t *tx, void *tag)
 559 {
 560         struct osd_device       *osd = osd_obj2dev(obj);
 561         udmu_objset_t           *uos = &osd->od_objset;
 562         uint64_t                 xid;
 563         zap_attribute_t         *za = &osd_oti_get(env)->oti_za;
 564         zap_cursor_t            *zc;
 565         int                      rc;
 566
 567         /* Assert that the transaction has been assigned to a
 568            transaction group. */
 569         LASSERT(tx->tx_txg != 0);
 570
 571         /* zap holding xattrs */
 572         if (obj->oo_xattr != ZFS_NO_OBJECT) {
 573                 rc = -udmu_zap_cursor_init(&zc, uos, obj->oo_xattr, 0);
 574                 if (rc)
 575                         return rc;
 576                 while ((rc = -zap_cursor_retrieve(zc, za)) == 0) {
 577                         BUG_ON(za->za_integer_length != sizeof(uint64_t));
 578                         BUG_ON(za->za_num_integers != 1);
 579
 580                         rc = -zap_lookup(uos->os, obj->oo_xattr, za->za_name,
 581                                          sizeof(uint64_t), 1, &xid);
 582                         if (rc) {
 583                                 CERROR("%s: lookup xattr %s failed: rc = %d\n",
 584                                        osd->od_svname, za->za_name, rc);
 585                                 continue;
 586                         }
 587                         rc = __osd_object_free(uos, xid, tx);
 588                         if (rc)
 589                                 CERROR("%s: fetch xattr %s failed: rc = %d\n",
 590                                        osd->od_svname, za->za_name, rc);
 591                         zap_cursor_advance(zc);
 592                 }
 593                 udmu_zap_cursor_fini(zc);
 594
 595                 rc = __osd_object_free(uos, obj->oo_xattr, tx);
 596                 if (rc)
 597                         CERROR("%s: freeing xattr failed: rc = %d\n",
 598                                osd->od_svname, rc);
 599         }
 600
 601         return __osd_object_free(uos, obj->oo_db->db_object, tx);
 602 }
 603
 604 static int osd_object_destroy(const struct lu_env *env,
 605                               struct dt_object *dt,
 606                               struct thandle *th)
 607 {
 608         char                    *buf = osd_oti_get(env)->oti_str;
 609         struct osd_object       *obj = osd_dt_obj(dt);
 610         struct osd_device       *osd = osd_obj2dev(obj);
 611         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
 612         struct osd_thandle      *oh;
 613         int                      rc;
 614         uint64_t                 zapid;
 615         ENTRY;
 616
 617         LASSERT(obj->oo_db != NULL);
 618         LASSERT(dt_object_exists(dt));
 619         LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
 620
 621         oh = container_of0(th, struct osd_thandle, ot_super);
 622         LASSERT(oh != NULL);
 623         LASSERT(oh->ot_tx != NULL);
 624
 625         zapid = osd_get_name_n_idx(env, osd, fid, buf);
 626
 627         /* remove obj ref from index dir (it depends) */
 628         rc = -zap_remove(osd->od_objset.os, zapid, buf, oh->ot_tx);
 629         if (rc) {
 630                 CERROR("%s: zap_remove() failed: rc = %d\n",
 631                        osd->od_svname, rc);
 632                 GOTO(out, rc);
 633         }
 634
 635         /* do object accounting */
 636         osd_zfs_acct_uid(env, osd, obj->oo_attr.la_uid, -1, oh);
 637         osd_zfs_acct_gid(env, osd, obj->oo_attr.la_gid, -1, oh);
 638
 639         /* kill object */
 640         rc = __osd_object_destroy(env, obj, oh->ot_tx, osd_obj_tag);
 641         if (rc) {
 642                 CERROR("%s: __osd_object_destroy() failed: rc = %d\n",
 643                        osd->od_svname, rc);
 644                 GOTO(out, rc);
 645         }
 646
 647 out:
 648         /* not needed in the cache anymore */
 649         set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
 650
 651         RETURN (0);
 652 }
 653
 654 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
 655 {
 656         struct osd_object *obj = osd_obj(l);
 657
 658         if (obj->oo_db != NULL) {
 659                 osd_object_sa_fini(obj);
 660                 if (obj->oo_sa_xattr) {
 661                         nvlist_free(obj->oo_sa_xattr);
 662                         obj->oo_sa_xattr = NULL;
 663                 }
 664                 sa_buf_rele(obj->oo_db, osd_obj_tag);
 665                 cfs_list_del(&obj->oo_sa_linkage);
 666                 obj->oo_db = NULL;
 667         }
 668 }
 669
 670 /*
 671  * Concurrency: ->loo_object_release() is called under site spin-lock.
 672  */
 673 static void osd_object_release(const struct lu_env *env,
 674                                struct lu_object *l)
 675 {
 676 }
 677
 678 /*
 679  * Concurrency: shouldn't matter.
 680  */
 681 static int osd_object_print(const struct lu_env *env, void *cookie,
 682                             lu_printer_t p, const struct lu_object *l)
 683 {
 684         struct osd_object *o = osd_obj(l);
 685
 686         return (*p)(env, cookie, LUSTRE_OSD_ZFS_NAME"-object@%p", o);
 687 }
 688
 689 static void osd_object_read_lock(const struct lu_env *env,
 690                                  struct dt_object *dt, unsigned role)
 691 {
 692         struct osd_object *obj = osd_dt_obj(dt);
 693
 694         LASSERT(osd_invariant(obj));
 695
 696         down_read(&obj->oo_sem);
 697 }
 698
 699 static void osd_object_write_lock(const struct lu_env *env,
 700                                   struct dt_object *dt, unsigned role)
 701 {
 702         struct osd_object *obj = osd_dt_obj(dt);
 703
 704         LASSERT(osd_invariant(obj));
 705
 706         down_write(&obj->oo_sem);
 707 }
 708
 709 static void osd_object_read_unlock(const struct lu_env *env,
 710                                    struct dt_object *dt)
 711 {
 712         struct osd_object *obj = osd_dt_obj(dt);
 713
 714         LASSERT(osd_invariant(obj));
 715         up_read(&obj->oo_sem);
 716 }
 717
 718 static void osd_object_write_unlock(const struct lu_env *env,
 719                                     struct dt_object *dt)
 720 {
 721         struct osd_object *obj = osd_dt_obj(dt);
 722
 723         LASSERT(osd_invariant(obj));
 724         up_write(&obj->oo_sem);
 725 }
 726
 727 static int osd_object_write_locked(const struct lu_env *env,
 728                                    struct dt_object *dt)
 729 {
 730         struct osd_object *obj = osd_dt_obj(dt);
 731         int rc = 1;
 732
 733         LASSERT(osd_invariant(obj));
 734
 735         if (down_write_trylock(&obj->oo_sem)) {
 736                 rc = 0;
 737                 up_write(&obj->oo_sem);
 738         }
 739         return rc;
 740 }
 741
 742 static int osd_attr_get(const struct lu_env *env,
 743                         struct dt_object *dt,
 744                         struct lu_attr *attr,
 745                         struct lustre_capa *capa)
 746 {
 747         struct osd_object       *obj = osd_dt_obj(dt);
 748         uint64_t                 blocks;
 749         uint32_t                 blksize;
 750
 751         LASSERT(dt_object_exists(dt));
 752         LASSERT(osd_invariant(obj));
 753         LASSERT(obj->oo_db);
 754
 755         read_lock(&obj->oo_attr_lock);
 756         *attr = obj->oo_attr;
 757         read_unlock(&obj->oo_attr_lock);
 758
 759         /* with ZFS_DEBUG zrl_add_debug() called by DB_DNODE_ENTER()
 760          * from within sa_object_size() can block on a mutex, so
 761          * we can't call sa_object_size() holding rwlock */
 762         sa_object_size(obj->oo_sa_hdl, &blksize, &blocks);
 763         /* we do not control size of indices, so always calculate
 764          * it from number of blocks reported by DMU */
 765         if (S_ISDIR(attr->la_mode))
 766                 attr->la_size = 512 * blocks;
 767         /* Block size may be not set; suggest maximal I/O transfers. */
 768         if (blksize == 0)
 769                 blksize = 1ULL << SPA_MAXBLOCKSHIFT;
 770
 771         attr->la_blksize = blksize;
 772         attr->la_blocks = blocks;
 773         attr->la_valid |= LA_BLOCKS | LA_BLKSIZE;
 774
 775         return 0;
 776 }
 777
 778 /* Simple wrapper on top of qsd API which implement quota transfer for osd
 779  * setattr needs. As a reminder, only the root user can change ownership of
 780  * a file, that's why EDQUOT & EINPROGRESS errors are discarded */
 781 static inline int qsd_transfer(const struct lu_env *env,
 782                                struct qsd_instance *qsd,
 783                                struct lquota_trans *trans, int qtype,
 784                                __u64 orig_id, __u64 new_id, __u64 bspace,
 785                                struct lquota_id_info *qi)
 786 {
 787         int     rc;
 788
 789         if (unlikely(qsd == NULL))
 790                 return 0;
 791
 792         LASSERT(qtype >= 0 && qtype < MAXQUOTAS);
 793         qi->lqi_type = qtype;
 794
 795         /* inode accounting */
 796         qi->lqi_is_blk = false;
 797
 798         /* one more inode for the new owner ... */
 799         qi->lqi_id.qid_uid = new_id;
 800         qi->lqi_space      = 1;
 801         rc = qsd_op_begin(env, qsd, trans, qi, NULL);
 802         if (rc == -EDQUOT || rc == -EINPROGRESS)
 803                 rc = 0;
 804         if (rc)
 805                 return rc;
 806
 807         /* and one less inode for the current id */
 808         qi->lqi_id.qid_uid = orig_id;;
 809         qi->lqi_space      = -1;
 810         /* can't get EDQUOT when reducing usage */
 811         rc = qsd_op_begin(env, qsd, trans, qi, NULL);
 812         if (rc == -EINPROGRESS)
 813                 rc = 0;
 814         if (rc)
 815                 return rc;
 816
 817         /* block accounting */
 818         qi->lqi_is_blk = true;
 819
 820         /* more blocks for the new owner ... */
 821         qi->lqi_id.qid_uid = new_id;
 822         qi->lqi_space      = bspace;
 823         rc = qsd_op_begin(env, qsd, trans, qi, NULL);
 824         if (rc == -EDQUOT || rc == -EINPROGRESS)
 825                 rc = 0;
 826         if (rc)
 827                 return rc;
 828
 829         /* and finally less blocks for the current owner */
 830         qi->lqi_id.qid_uid = orig_id;
 831         qi->lqi_space      = -bspace;
 832         rc = qsd_op_begin(env, qsd, trans, qi, NULL);
 833         /* can't get EDQUOT when reducing usage */
 834         if (rc == -EINPROGRESS)
 835                 rc = 0;
 836         return rc;
 837 }
 838
 839 static int osd_declare_attr_set(const struct lu_env *env,
 840                                 struct dt_object *dt,
 841                                 const struct lu_attr *attr,
 842                                 struct thandle *handle)
 843 {
 844         struct osd_thread_info  *info = osd_oti_get(env);
 845         char                    *buf = osd_oti_get(env)->oti_str;
 846         struct osd_object       *obj = osd_dt_obj(dt);
 847         struct osd_device       *osd = osd_obj2dev(obj);
 848         struct osd_thandle      *oh;
 849         uint64_t                 bspace;
 850         uint32_t                 blksize;
 851         int                      rc;
 852         ENTRY;
 853
 854         if (!dt_object_exists(dt)) {
 855                 /* XXX: sanity check that object creation is declared */
 856                 RETURN(0);
 857         }
 858
 859         LASSERT(handle != NULL);
 860         LASSERT(osd_invariant(obj));
 861
 862         oh = container_of0(handle, struct osd_thandle, ot_super);
 863
 864         LASSERT(obj->oo_sa_hdl != NULL);
 865         LASSERT(oh->ot_tx != NULL);
 866         dmu_tx_hold_sa(oh->ot_tx, obj->oo_sa_hdl, 0);
 867         if (oh->ot_tx->tx_err != 0)
 868                 RETURN(-oh->ot_tx->tx_err);
 869
 870         sa_object_size(obj->oo_sa_hdl, &blksize, &bspace);
 871         bspace = toqb(bspace * blksize);
 872
 873         if (attr && attr->la_valid & LA_UID) {
 874                 /* account for user inode tracking ZAP update */
 875                 dmu_tx_hold_bonus(oh->ot_tx, osd->od_iusr_oid);
 876                 dmu_tx_hold_zap(oh->ot_tx, osd->od_iusr_oid, TRUE, buf);
 877
 878                 /* quota enforcement for user */
 879                 if (attr->la_uid != obj->oo_attr.la_uid) {
 880                         rc = qsd_transfer(env, osd->od_quota_slave,
 881                                           &oh->ot_quota_trans, USRQUOTA,
 882                                           obj->oo_attr.la_uid, attr->la_uid,
 883                                           bspace, &info->oti_qi);
 884                         if (rc)
 885                                 RETURN(rc);
 886                 }
 887         }
 888         if (attr && attr->la_valid & LA_GID) {
 889                 /* account for user inode tracking ZAP update */
 890                 dmu_tx_hold_bonus(oh->ot_tx, osd->od_igrp_oid);
 891                 dmu_tx_hold_zap(oh->ot_tx, osd->od_igrp_oid, TRUE, buf);
 892
 893                 /* quota enforcement for group */
 894                 if (attr->la_gid != obj->oo_attr.la_gid) {
 895                         rc = qsd_transfer(env, osd->od_quota_slave,
 896                                           &oh->ot_quota_trans, GRPQUOTA,
 897                                           obj->oo_attr.la_gid, attr->la_gid,
 898                                           bspace, &info->oti_qi);
 899                         if (rc)
 900                                 RETURN(rc);
 901                 }
 902         }
 903
 904         RETURN(0);
 905 }
 906
 907 /*
 908  * Set the attributes of an object
 909  *
 910  * The transaction passed to this routine must have
 911  * dmu_tx_hold_bonus(tx, oid) called and then assigned
 912  * to a transaction group.
 913  */
 914 static int osd_attr_set(const struct lu_env *env, struct dt_object *dt,
 915                         const struct lu_attr *la, struct thandle *handle,
 916                         struct lustre_capa *capa)
 917 {
 918         struct osd_object       *obj = osd_dt_obj(dt);
 919         struct osd_device       *osd = osd_obj2dev(obj);
 920         udmu_objset_t           *uos = &osd->od_objset;
 921         struct osd_thandle      *oh;
 922         struct osa_attr         *osa = &osd_oti_get(env)->oti_osa;
 923         sa_bulk_attr_t          *bulk;
 924         int                      cnt;
 925         int                      rc = 0;
 926
 927         ENTRY;
 928         LASSERT(handle != NULL);
 929         LASSERT(dt_object_exists(dt));
 930         LASSERT(osd_invariant(obj));
 931         LASSERT(obj->oo_sa_hdl);
 932
 933         oh = container_of0(handle, struct osd_thandle, ot_super);
 934         /* Assert that the transaction has been assigned to a
 935            transaction group. */
 936         LASSERT(oh->ot_tx->tx_txg != 0);
 937
 938         if (la->la_valid == 0)
 939                 RETURN(0);
 940
 941         OBD_ALLOC(bulk, sizeof(sa_bulk_attr_t) * 10);
 942         if (bulk == NULL)
 943                 RETURN(-ENOMEM);
 944
 945         /* do both accounting updates outside oo_attr_lock below */
 946         if ((la->la_valid & LA_UID) && (la->la_uid != obj->oo_attr.la_uid)) {
 947                 /* do object accounting */
 948                 osd_zfs_acct_uid(env, osd, la->la_uid, 1, oh);
 949                 osd_zfs_acct_uid(env, osd, obj->oo_attr.la_uid, -1, oh);
 950         }
 951         if ((la->la_valid & LA_GID) && (la->la_gid != obj->oo_attr.la_gid)) {
 952                 /* do object accounting */
 953                 osd_zfs_acct_gid(env, osd, la->la_gid, 1, oh);
 954                 osd_zfs_acct_gid(env, osd, obj->oo_attr.la_gid, -1, oh);
 955         }
 956
 957         write_lock(&obj->oo_attr_lock);
 958         cnt = 0;
 959         if (la->la_valid & LA_ATIME) {
 960                 osa->atime[0] = obj->oo_attr.la_atime = la->la_atime;
 961                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(uos), NULL,
 962                                  osa->atime, 16);
 963         }
 964         if (la->la_valid & LA_MTIME) {
 965                 osa->mtime[0] = obj->oo_attr.la_mtime = la->la_mtime;
 966                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(uos), NULL,
 967                                  osa->mtime, 16);
 968         }
 969         if (la->la_valid & LA_CTIME) {
 970                 osa->ctime[0] = obj->oo_attr.la_ctime = la->la_ctime;
 971                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(uos), NULL,
 972                                  osa->ctime, 16);
 973         }
 974         if (la->la_valid & LA_MODE) {
 975                 /* mode is stored along with type, so read it first */
 976                 obj->oo_attr.la_mode = (obj->oo_attr.la_mode & S_IFMT) |
 977                         (la->la_mode & ~S_IFMT);
 978                 osa->mode = obj->oo_attr.la_mode;
 979                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(uos), NULL,
 980                                  &osa->mode, 8);
 981         }
 982         if (la->la_valid & LA_SIZE) {
 983                 osa->size = obj->oo_attr.la_size = la->la_size;
 984                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(uos), NULL,
 985                                  &osa->size, 8);
 986         }
 987         if (la->la_valid & LA_NLINK) {
 988                 osa->nlink = obj->oo_attr.la_nlink = la->la_nlink;
 989                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(uos), NULL,
 990                                  &osa->nlink, 8);
 991         }
 992         if (la->la_valid & LA_RDEV) {
 993                 osa->rdev = obj->oo_attr.la_rdev = la->la_rdev;
 994                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_RDEV(uos), NULL,
 995                                  &osa->rdev, 8);
 996         }
 997         if (la->la_valid & LA_FLAGS) {
 998                 osa->flags = attrs_fs2zfs(la->la_flags);
 999                 /* many flags are not supported by zfs, so ensure a good cached
1000                  * copy */
1001                 obj->oo_attr.la_flags = attrs_zfs2fs(osa->flags);
1002                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(uos), NULL,
1003                                  &osa->flags, 8);
1004         }
1005         if (la->la_valid & LA_UID) {
1006                 osa->uid = obj->oo_attr.la_uid = la->la_uid;
1007                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(uos), NULL,
1008                                  &osa->uid, 8);
1009         }
1010         if (la->la_valid & LA_GID) {
1011                 osa->gid = obj->oo_attr.la_gid = la->la_gid;
1012                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(uos), NULL,
1013                                  &osa->gid, 8);
1014         }
1015         obj->oo_attr.la_valid |= la->la_valid;
1016         write_unlock(&obj->oo_attr_lock);
1017
1018         rc = osd_object_sa_bulk_update(obj, bulk, cnt, oh);
1019
1020         OBD_FREE(bulk, sizeof(sa_bulk_attr_t) * 10);
1021         RETURN(rc);
1022 }
1023
1024 /*
1025  * Object creation.
1026  *
1027  * XXX temporary solution.
1028  */
1029
1030 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
1031                         struct dt_object *parent, struct dt_object *child,
1032                         umode_t child_mode)
1033 {
1034         LASSERT(ah);
1035
1036         memset(ah, 0, sizeof(*ah));
1037         ah->dah_parent = parent;
1038         ah->dah_mode = child_mode;
1039 }
1040
1041 static int osd_declare_object_create(const struct lu_env *env,
1042                                      struct dt_object *dt,
1043                                      struct lu_attr *attr,
1044                                      struct dt_allocation_hint *hint,
1045                                      struct dt_object_format *dof,
1046                                      struct thandle *handle)
1047 {
1048         char                    *buf = osd_oti_get(env)->oti_str;
1049         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
1050         struct osd_object       *obj = osd_dt_obj(dt);
1051         struct osd_device       *osd = osd_obj2dev(obj);
1052         struct osd_thandle      *oh;
1053         uint64_t                 zapid;
1054         int                      rc;
1055         ENTRY;
1056
1057         LASSERT(dof);
1058
1059         switch (dof->dof_type) {
1060                 case DFT_REGULAR:
1061                 case DFT_SYM:
1062                 case DFT_NODE:
1063                         if (obj->oo_dt.do_body_ops == NULL)
1064                                 obj->oo_dt.do_body_ops = &osd_body_ops;
1065                         break;
1066                 default:
1067                         break;
1068         }
1069
1070         LASSERT(handle != NULL);
1071         oh = container_of0(handle, struct osd_thandle, ot_super);
1072         LASSERT(oh->ot_tx != NULL);
1073
1074         switch (dof->dof_type) {
1075                 case DFT_DIR:
1076                 case DFT_INDEX:
1077                         /* for zap create */
1078                         dmu_tx_hold_zap(oh->ot_tx, DMU_NEW_OBJECT, 1, NULL);
1079                         break;
1080                 case DFT_REGULAR:
1081                 case DFT_SYM:
1082                 case DFT_NODE:
1083                         /* first, we'll create new object */
1084                         dmu_tx_hold_bonus(oh->ot_tx, DMU_NEW_OBJECT);
1085                         break;
1086
1087                 default:
1088                         LBUG();
1089                         break;
1090         }
1091
1092         /* and we'll add it to some mapping */
1093         zapid = osd_get_name_n_idx(env, osd, fid, buf);
1094         dmu_tx_hold_bonus(oh->ot_tx, zapid);
1095         dmu_tx_hold_zap(oh->ot_tx, zapid, TRUE, buf);
1096
1097         /* we will also update inode accounting ZAPs */
1098         dmu_tx_hold_bonus(oh->ot_tx, osd->od_iusr_oid);
1099         dmu_tx_hold_zap(oh->ot_tx, osd->od_iusr_oid, TRUE, buf);
1100         dmu_tx_hold_bonus(oh->ot_tx, osd->od_igrp_oid);
1101         dmu_tx_hold_zap(oh->ot_tx, osd->od_igrp_oid, TRUE, buf);
1102
1103         dmu_tx_hold_sa_create(oh->ot_tx, ZFS_SA_BASE_ATTR_SIZE);
1104
1105         __osd_xattr_declare_set(env, obj, sizeof(struct lustre_mdt_attrs),
1106                                 XATTR_NAME_LMA, oh);
1107
1108         rc = osd_declare_quota(env, osd, attr->la_uid, attr->la_gid, 1, oh,
1109                                false, NULL, false);
1110         RETURN(rc);
1111 }
1112
1113 int __osd_attr_init(const struct lu_env *env, udmu_objset_t *uos, uint64_t oid,
1114                     dmu_tx_t *tx, struct lu_attr *la, uint64_t parent)
1115 {
1116         sa_bulk_attr_t  *bulk;
1117         sa_handle_t     *sa_hdl;
1118         struct osa_attr *osa = &osd_oti_get(env)->oti_osa;
1119         uint64_t         gen;
1120         uint64_t         crtime[2];
1121         timestruc_t      now;
1122         int              cnt;
1123         int              rc;
1124
1125         gethrestime(&now);
1126         gen = dmu_tx_get_txg(tx);
1127
1128         ZFS_TIME_ENCODE(&now, crtime);
1129
1130         osa->atime[0] = la->la_atime;
1131         osa->ctime[0] = la->la_ctime;
1132         osa->mtime[0] = la->la_mtime;
1133         osa->mode = la->la_mode;
1134         osa->uid = la->la_uid;
1135         osa->gid = la->la_gid;
1136         osa->rdev = la->la_rdev;
1137         osa->nlink = la->la_nlink;
1138         osa->flags = attrs_fs2zfs(la->la_flags);
1139         osa->size  = la->la_size;
1140
1141         /* Now add in all of the "SA" attributes */
1142         rc = -sa_handle_get(uos->os, oid, NULL, SA_HDL_PRIVATE, &sa_hdl);
1143         if (rc)
1144                 return rc;
1145
1146         OBD_ALLOC(bulk, sizeof(sa_bulk_attr_t) * 13);
1147         if (bulk == NULL) {
1148                 rc = -ENOMEM;
1149                 goto out;
1150         }
1151         /*
1152          * we need to create all SA below upon object create.
1153          *
1154          * XXX The attribute order matters since the accounting callback relies
1155          * on static offsets (i.e. SA_*_OFFSET, see zfs_space_delta_cb()) to
1156          * look up the UID/GID attributes. Moreover, the callback does not seem
1157          * to support the spill block.
1158          * We define attributes in the same order as SA_*_OFFSET in order to
1159          * work around the problem. See ORI-610.
1160          */
1161         cnt = 0;
1162         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(uos), NULL, &osa->mode, 8);
1163         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(uos), NULL, &osa->size, 8);
1164         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GEN(uos), NULL, &gen, 8);
1165         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(uos), NULL, &osa->uid, 8);
1166         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(uos), NULL, &osa->gid, 8);
1167         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_PARENT(uos), NULL, &parent, 8);
1168         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(uos), NULL, &osa->flags, 8);
1169         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(uos), NULL, osa->atime, 16);
1170         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(uos), NULL, osa->mtime, 16);
1171         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(uos), NULL, osa->ctime, 16);
1172         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CRTIME(uos), NULL, crtime, 16);
1173         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(uos), NULL, &osa->nlink, 8);
1174         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_RDEV(uos), NULL, &osa->rdev, 8);
1175
1176         rc = -sa_replace_all_by_template(sa_hdl, bulk, cnt, tx);
1177
1178         OBD_FREE(bulk, sizeof(sa_bulk_attr_t) * 13);
1179 out:
1180         sa_handle_destroy(sa_hdl);
1181         return rc;
1182 }
1183
1184 /*
1185  * The transaction passed to this routine must have
1186  * dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT) called and then assigned
1187  * to a transaction group.
1188  */
1189 int __osd_object_create(const struct lu_env *env, udmu_objset_t *uos,
1190                         dmu_buf_t **dbp, dmu_tx_t *tx, struct lu_attr *la,
1191                         uint64_t parent, void *tag)
1192 {
1193         uint64_t oid;
1194         int      rc;
1195
1196         LASSERT(tag);
1197         spin_lock(&uos->lock);
1198         uos->objects++;
1199         spin_unlock(&uos->lock);
1200
1201         /* Assert that the transaction has been assigned to a
1202            transaction group. */
1203         LASSERT(tx->tx_txg != 0);
1204
1205         /* Create a new DMU object. */
1206         oid = dmu_object_alloc(uos->os, DMU_OT_PLAIN_FILE_CONTENTS, 0,
1207                                DMU_OT_SA, DN_MAX_BONUSLEN, tx);
1208         rc = -sa_buf_hold(uos->os, oid, tag, dbp);
1209         if (rc)
1210                 return rc;
1211
1212         LASSERT(la->la_valid & LA_MODE);
1213         la->la_size = 0;
1214         la->la_nlink = 1;
1215
1216         return __osd_attr_init(env, uos, oid, tx, la, parent);
1217 }
1218
1219 /*
1220  * The transaction passed to this routine must have
1221  * dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, ...) called and then assigned
1222  * to a transaction group.
1223  *
1224  * Using ZAP_FLAG_HASH64 will force the ZAP to always be a FAT ZAP.
1225  * This is fine for directories today, because storing the FID in the dirent
1226  * will also require a FAT ZAP.  If there is a new type of micro ZAP created
1227  * then we might need to re-evaluate the use of this flag and instead do
1228  * a conversion from the different internal ZAP hash formats being used. */
1229 int __osd_zap_create(const struct lu_env *env, udmu_objset_t *uos,
1230                      dmu_buf_t **zap_dbp, dmu_tx_t *tx,
1231                      struct lu_attr *la, uint64_t parent,
1232                      void *tag, zap_flags_t flags)
1233 {
1234         uint64_t oid;
1235         int      rc;
1236
1237         LASSERT(tag);
1238
1239         spin_lock(&uos->lock);
1240         uos->objects++;
1241         spin_unlock(&uos->lock);
1242
1243         /* Assert that the transaction has been assigned to a
1244            transaction group. */
1245         LASSERT(tx->tx_txg != 0);
1246
1247         oid = zap_create_flags(uos->os, 0, flags | ZAP_FLAG_HASH64,
1248                                DMU_OT_DIRECTORY_CONTENTS, 12, 12,
1249                                DMU_OT_SA, DN_MAX_BONUSLEN, tx);
1250
1251         rc = -sa_buf_hold(uos->os, oid, tag, zap_dbp);
1252         if (rc)
1253                 return rc;
1254
1255         LASSERT(la->la_valid & LA_MODE);
1256         la->la_size = 2;
1257         la->la_nlink = 1;
1258
1259         return __osd_attr_init(env, uos, oid, tx, la, parent);
1260 }
1261
1262 static dmu_buf_t *osd_mkidx(const struct lu_env *env, struct osd_device *osd,
1263                             struct lu_attr *la, uint64_t parent,
1264                             struct osd_thandle *oh)
1265 {
1266         dmu_buf_t *db;
1267         int        rc;
1268
1269         /* Index file should be created as regular file in order not to confuse
1270          * ZPL which could interpret them as directory.
1271          * We set ZAP_FLAG_UINT64_KEY to let ZFS know than we are going to use
1272          * binary keys */
1273         LASSERT(S_ISREG(la->la_mode));
1274         rc = __osd_zap_create(env, &osd->od_objset, &db, oh->ot_tx, la,
1275                               parent, osd_obj_tag, ZAP_FLAG_UINT64_KEY);
1276         if (rc)
1277                 return ERR_PTR(rc);
1278         return db;
1279 }
1280
1281 static dmu_buf_t *osd_mkdir(const struct lu_env *env, struct osd_device *osd,
1282                             struct lu_attr *la, uint64_t parent,
1283                             struct osd_thandle *oh)
1284 {
1285         dmu_buf_t *db;
1286         int        rc;
1287
1288         LASSERT(S_ISDIR(la->la_mode));
1289         rc = __osd_zap_create(env, &osd->od_objset, &db, oh->ot_tx, la,
1290                               parent, osd_obj_tag, 0);
1291         if (rc)
1292                 return ERR_PTR(rc);
1293         return db;
1294 }
1295
1296 static dmu_buf_t* osd_mkreg(const struct lu_env *env, struct osd_device *osd,
1297                             struct lu_attr *la, uint64_t parent,
1298                             struct osd_thandle *oh)
1299 {
1300         dmu_buf_t *db;
1301         int         rc;
1302
1303         LASSERT(S_ISREG(la->la_mode));
1304         rc = __osd_object_create(env, &osd->od_objset, &db, oh->ot_tx, la,
1305                                  parent, osd_obj_tag);
1306         if (rc)
1307                 return ERR_PTR(rc);
1308
1309         /*
1310          * XXX: a hack, OST to use bigger blocksize. we need
1311          * a method in OSD API to control this from OFD/MDD
1312          */
1313         if (!lu_device_is_md(osd2lu_dev(osd))) {
1314                 rc = -dmu_object_set_blocksize(osd->od_objset.os,
1315                                                db->db_object,
1316                                 128 << 10, 0, oh->ot_tx);
1317                 if (unlikely(rc)) {
1318                         CERROR("%s: can't change blocksize: %d\n",
1319                                osd->od_svname, rc);
1320                         return ERR_PTR(rc);
1321                 }
1322         }
1323
1324         return db;
1325 }
1326
1327 static dmu_buf_t *osd_mksym(const struct lu_env *env, struct osd_device *osd,
1328                             struct lu_attr *la, uint64_t parent,
1329                             struct osd_thandle *oh)
1330 {
1331         dmu_buf_t *db;
1332         int        rc;
1333
1334         LASSERT(S_ISLNK(la->la_mode));
1335         rc = __osd_object_create(env, &osd->od_objset, &db, oh->ot_tx, la,
1336                                  parent, osd_obj_tag);
1337         if (rc)
1338                 return ERR_PTR(rc);
1339         return db;
1340 }
1341
1342 static dmu_buf_t *osd_mknod(const struct lu_env *env, struct osd_device *osd,
1343                             struct lu_attr *la, uint64_t parent,
1344                             struct osd_thandle *oh)
1345 {
1346         dmu_buf_t *db;
1347         int        rc;
1348
1349         la->la_valid = LA_MODE;
1350         if (S_ISCHR(la->la_mode) || S_ISBLK(la->la_mode))
1351                 la->la_valid |= LA_RDEV;
1352
1353         rc = __osd_object_create(env, &osd->od_objset, &db, oh->ot_tx, la,
1354                                  parent, osd_obj_tag);
1355         if (rc)
1356                 return ERR_PTR(rc);
1357         return db;
1358 }
1359
1360 typedef dmu_buf_t *(*osd_obj_type_f)(const struct lu_env *env,
1361                                      struct osd_device *osd,
1362                                      struct lu_attr *la,
1363                                      uint64_t parent,
1364                                      struct osd_thandle *oh);
1365
1366 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
1367 {
1368         osd_obj_type_f result;
1369
1370         switch (type) {
1371         case DFT_DIR:
1372                 result = osd_mkdir;
1373                 break;
1374         case DFT_INDEX:
1375                 result = osd_mkidx;
1376                 break;
1377         case DFT_REGULAR:
1378                 result = osd_mkreg;
1379                 break;
1380         case DFT_SYM:
1381                 result = osd_mksym;
1382                 break;
1383         case DFT_NODE:
1384                 result = osd_mknod;
1385                 break;
1386         default:
1387                 LBUG();
1388                 break;
1389         }
1390         return result;
1391 }
1392
1393 /*
1394  * Primitives for directory (i.e. ZAP) handling
1395  */
1396 static inline int osd_init_lma(const struct lu_env *env, struct osd_object *obj,
1397                                const struct lu_fid *fid, struct osd_thandle *oh)
1398 {
1399         struct osd_thread_info  *info = osd_oti_get(env);
1400         struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
1401         struct lu_buf            buf;
1402         int rc;
1403
1404         lustre_lma_init(lma, fid, 0, 0);
1405         lustre_lma_swab(lma);
1406         buf.lb_buf = lma;
1407         buf.lb_len = sizeof(*lma);
1408
1409         rc = osd_xattr_set_internal(env, obj, &buf, XATTR_NAME_LMA,
1410                                     LU_XATTR_CREATE, oh, BYPASS_CAPA);
1411
1412         return rc;
1413 }
1414
1415 /*
1416  * Concurrency: @dt is write locked.
1417  */
1418 static int osd_object_create(const struct lu_env *env, struct dt_object *dt,
1419                              struct lu_attr *attr,
1420                              struct dt_allocation_hint *hint,
1421                              struct dt_object_format *dof,
1422                              struct thandle *th)
1423 {
1424         struct zpl_direntry     *zde = &osd_oti_get(env)->oti_zde.lzd_reg;
1425         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
1426         struct osd_object       *obj = osd_dt_obj(dt);
1427         struct osd_device       *osd = osd_obj2dev(obj);
1428         char                    *buf = osd_oti_get(env)->oti_str;
1429         struct osd_thandle      *oh;
1430         dmu_buf_t               *db;
1431         uint64_t                 zapid;
1432         int                      rc;
1433
1434         ENTRY;
1435
1436         /* concurrent create declarations should not see
1437          * the object inconsistent (db, attr, etc).
1438          * in regular cases acquisition should be cheap */
1439         down(&obj->oo_guard);
1440
1441         LASSERT(osd_invariant(obj));
1442         LASSERT(!dt_object_exists(dt));
1443         LASSERT(dof != NULL);
1444
1445         LASSERT(th != NULL);
1446         oh = container_of0(th, struct osd_thandle, ot_super);
1447
1448         /*
1449          * XXX missing: Quote handling.
1450          */
1451
1452         LASSERT(obj->oo_db == NULL);
1453
1454         /* to follow ZFS on-disk format we need
1455          * to initialize parent dnode properly */
1456         zapid = 0;
1457         if (hint && hint->dah_parent)
1458                 zapid = osd_dt_obj(hint->dah_parent)->oo_db->db_object;
1459
1460         db = osd_create_type_f(dof->dof_type)(env, osd, attr, zapid, oh);
1461         if (IS_ERR(db))
1462                 GOTO(out, rc = PTR_ERR(db));
1463
1464         zde->zde_pad = 0;
1465         zde->zde_dnode = db->db_object;
1466         zde->zde_type = IFTODT(attr->la_mode & S_IFMT);
1467
1468         zapid = osd_get_name_n_idx(env, osd, fid, buf);
1469
1470         rc = -zap_add(osd->od_objset.os, zapid, buf, 8, 1, zde, oh->ot_tx);
1471         if (rc)
1472                 GOTO(out, rc);
1473
1474         /* Add new object to inode accounting.
1475          * Errors are not considered as fatal */
1476         /* XXX: UID/GID must be defined otherwise we can break accounting */
1477         osd_zfs_acct_uid(env, osd, attr->la_uid, 1, oh);
1478         osd_zfs_acct_gid(env, osd, attr->la_gid, 1, oh);
1479
1480         /* configure new osd object */
1481         obj->oo_db = db;
1482         rc = osd_object_init0(env, obj);
1483         LASSERT(ergo(rc == 0, dt_object_exists(dt)));
1484         LASSERT(osd_invariant(obj));
1485
1486         rc = osd_init_lma(env, obj, fid, oh);
1487         if (rc) {
1488                 CERROR("%s: can not set LMA on "DFID": rc = %d\n",
1489                        osd->od_svname, PFID(fid), rc);
1490                 /* ignore errors during LMA initialization */
1491                 rc = 0;
1492         }
1493
1494 out:
1495         up(&obj->oo_guard);
1496         RETURN(rc);
1497 }
1498
1499 static int osd_declare_object_ref_add(const struct lu_env *env,
1500                                       struct dt_object *dt,
1501                                       struct thandle *th)
1502 {
1503         return osd_declare_attr_set(env, dt, NULL, th);
1504 }
1505
1506 /*
1507  * Concurrency: @dt is write locked.
1508  */
1509 static int osd_object_ref_add(const struct lu_env *env,
1510                               struct dt_object *dt,
1511                               struct thandle *handle)
1512 {
1513         struct osd_object       *obj = osd_dt_obj(dt);
1514         struct osd_thandle      *oh;
1515         struct osd_device       *osd = osd_obj2dev(obj);
1516         udmu_objset_t           *uos = &osd->od_objset;
1517         uint64_t                 nlink;
1518         int rc;
1519
1520         ENTRY;
1521
1522         LASSERT(osd_invariant(obj));
1523         LASSERT(dt_object_exists(dt));
1524         LASSERT(obj->oo_sa_hdl != NULL);
1525
1526         oh = container_of0(handle, struct osd_thandle, ot_super);
1527
1528         write_lock(&obj->oo_attr_lock);
1529         nlink = ++obj->oo_attr.la_nlink;
1530         write_unlock(&obj->oo_attr_lock);
1531
1532         rc = osd_object_sa_update(obj, SA_ZPL_LINKS(uos), &nlink, 8, oh);
1533         return rc;
1534 }
1535
1536 static int osd_declare_object_ref_del(const struct lu_env *env,
1537                                       struct dt_object *dt,
1538                                       struct thandle *handle)
1539 {
1540         return osd_declare_attr_set(env, dt, NULL, handle);
1541 }
1542
1543 /*
1544  * Concurrency: @dt is write locked.
1545  */
1546 static int osd_object_ref_del(const struct lu_env *env,
1547                               struct dt_object *dt,
1548                               struct thandle *handle)
1549 {
1550         struct osd_object       *obj = osd_dt_obj(dt);
1551         struct osd_thandle      *oh;
1552         struct osd_device       *osd = osd_obj2dev(obj);
1553         udmu_objset_t           *uos = &osd->od_objset;
1554         uint64_t                 nlink;
1555         int                      rc;
1556
1557         ENTRY;
1558
1559         LASSERT(osd_invariant(obj));
1560         LASSERT(dt_object_exists(dt));
1561         LASSERT(obj->oo_sa_hdl != NULL);
1562
1563         oh = container_of0(handle, struct osd_thandle, ot_super);
1564         LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
1565
1566         write_lock(&obj->oo_attr_lock);
1567         nlink = --obj->oo_attr.la_nlink;
1568         write_unlock(&obj->oo_attr_lock);
1569
1570         rc = osd_object_sa_update(obj, SA_ZPL_LINKS(uos), &nlink, 8, oh);
1571         return rc;
1572 }
1573
1574 static int capa_is_sane(const struct lu_env *env, struct osd_device *dev,
1575                         struct lustre_capa *capa, struct lustre_capa_key *keys)
1576 {
1577         struct osd_thread_info  *oti = osd_oti_get(env);
1578         struct obd_capa         *oc;
1579         int                      i, rc = 0;
1580         ENTRY;
1581
1582         oc = capa_lookup(dev->od_capa_hash, capa, 0);
1583         if (oc) {
1584                 if (capa_is_expired(oc)) {
1585                         DEBUG_CAPA(D_ERROR, capa, "expired");
1586                         rc = -ESTALE;
1587                 }
1588                 capa_put(oc);
1589                 RETURN(rc);
1590         }
1591
1592         spin_lock(&capa_lock);
1593         for (i = 0; i < 2; i++) {
1594                 if (keys[i].lk_keyid == capa->lc_keyid) {
1595                         oti->oti_capa_key = keys[i];
1596                         break;
1597                 }
1598         }
1599         spin_unlock(&capa_lock);
1600
1601         if (i == 2) {
1602                 DEBUG_CAPA(D_ERROR, capa, "no matched capa key");
1603                 RETURN(-ESTALE);
1604         }
1605
1606         rc = capa_hmac(oti->oti_capa.lc_hmac, capa, oti->oti_capa_key.lk_key);
1607         if (rc)
1608                 RETURN(rc);
1609         if (memcmp(oti->oti_capa.lc_hmac, capa->lc_hmac, sizeof(capa->lc_hmac)))
1610         {
1611                 DEBUG_CAPA(D_ERROR, capa, "HMAC mismatch");
1612                 RETURN(-EACCES);
1613         }
1614
1615         oc = capa_add(dev->od_capa_hash, capa);
1616         capa_put(oc);
1617
1618         RETURN(0);
1619 }
1620
1621 static int osd_object_auth(const struct lu_env *env, struct dt_object *dt,
1622                            struct lustre_capa *capa, __u64 opc)
1623 {
1624         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
1625         struct osd_device       *dev = osd_dev(dt->do_lu.lo_dev);
1626         int                      rc;
1627
1628         if (!dev->od_fl_capa)
1629                 return 0;
1630
1631         if (capa == BYPASS_CAPA)
1632                 return 0;
1633
1634         if (!capa) {
1635                 CERROR("no capability is provided for fid "DFID"\n", PFID(fid));
1636                 return -EACCES;
1637         }
1638
1639         if (!lu_fid_eq(fid, &capa->lc_fid)) {
1640                 DEBUG_CAPA(D_ERROR, capa, "fid "DFID" mismatch with",PFID(fid));
1641                 return -EACCES;
1642         }
1643
1644         if (!capa_opc_supported(capa, opc)) {
1645                 DEBUG_CAPA(D_ERROR, capa, "opc "LPX64" not supported by", opc);
1646                 return -EACCES;
1647         }
1648
1649         if ((rc = capa_is_sane(env, dev, capa, dev->od_capa_keys))) {
1650                 DEBUG_CAPA(D_ERROR, capa, "insane (rc %d)", rc);
1651                 return -EACCES;
1652         }
1653
1654         return 0;
1655 }
1656
1657 static struct obd_capa *osd_capa_get(const struct lu_env *env,
1658                                      struct dt_object *dt,
1659                                      struct lustre_capa *old,
1660                                      __u64 opc)
1661 {
1662         struct osd_thread_info  *info = osd_oti_get(env);
1663         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
1664         struct osd_object       *obj = osd_dt_obj(dt);
1665         struct osd_device       *dev = osd_obj2dev(obj);
1666         struct lustre_capa_key  *key = &info->oti_capa_key;
1667         struct lustre_capa      *capa = &info->oti_capa;
1668         struct obd_capa         *oc;
1669         int                      rc;
1670         ENTRY;
1671
1672         if (!dev->od_fl_capa)
1673                 RETURN(ERR_PTR(-ENOENT));
1674
1675         LASSERT(dt_object_exists(dt));
1676         LASSERT(osd_invariant(obj));
1677
1678         /* renewal sanity check */
1679         if (old && osd_object_auth(env, dt, old, opc))
1680                 RETURN(ERR_PTR(-EACCES));
1681
1682         capa->lc_fid = *fid;
1683         capa->lc_opc = opc;
1684         capa->lc_uid = 0;
1685         capa->lc_flags = dev->od_capa_alg << 24;
1686         capa->lc_timeout = dev->od_capa_timeout;
1687         capa->lc_expiry = 0;
1688
1689         oc = capa_lookup(dev->od_capa_hash, capa, 1);
1690         if (oc) {
1691                 LASSERT(!capa_is_expired(oc));
1692                 RETURN(oc);
1693         }
1694
1695         spin_lock(&capa_lock);
1696         *key = dev->od_capa_keys[1];
1697         spin_unlock(&capa_lock);
1698
1699         capa->lc_keyid = key->lk_keyid;
1700         capa->lc_expiry = cfs_time_current_sec() + dev->od_capa_timeout;
1701
1702         rc = capa_hmac(capa->lc_hmac, capa, key->lk_key);
1703         if (rc) {
1704                 DEBUG_CAPA(D_ERROR, capa, "HMAC failed: %d for", rc);
1705                 LBUG();
1706                 RETURN(ERR_PTR(rc));
1707         }
1708
1709         oc = capa_add(dev->od_capa_hash, capa);
1710         RETURN(oc);
1711 }
1712
1713 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt)
1714 {
1715         struct osd_device *osd = osd_obj2dev(osd_dt_obj(dt));
1716         ENTRY;
1717
1718         /* XXX: no other option than syncing the whole filesystem until we
1719          * support ZIL */
1720         txg_wait_synced(dmu_objset_pool(osd->od_objset.os), 0ULL);
1721
1722         RETURN(0);
1723 }
1724
1725 static struct dt_object_operations osd_obj_ops = {
1726         .do_read_lock           = osd_object_read_lock,
1727         .do_write_lock          = osd_object_write_lock,
1728         .do_read_unlock         = osd_object_read_unlock,
1729         .do_write_unlock        = osd_object_write_unlock,
1730         .do_write_locked        = osd_object_write_locked,
1731         .do_attr_get            = osd_attr_get,
1732         .do_declare_attr_set    = osd_declare_attr_set,
1733         .do_attr_set            = osd_attr_set,
1734         .do_ah_init             = osd_ah_init,
1735         .do_declare_create      = osd_declare_object_create,
1736         .do_create              = osd_object_create,
1737         .do_declare_destroy     = osd_declare_object_destroy,
1738         .do_destroy             = osd_object_destroy,
1739         .do_index_try           = osd_index_try,
1740         .do_declare_ref_add     = osd_declare_object_ref_add,
1741         .do_ref_add             = osd_object_ref_add,
1742         .do_declare_ref_del     = osd_declare_object_ref_del,
1743         .do_ref_del             = osd_object_ref_del,
1744         .do_xattr_get           = osd_xattr_get,
1745         .do_declare_xattr_set   = osd_declare_xattr_set,
1746         .do_xattr_set           = osd_xattr_set,
1747         .do_declare_xattr_del   = osd_declare_xattr_del,
1748         .do_xattr_del           = osd_xattr_del,
1749         .do_xattr_list          = osd_xattr_list,
1750         .do_capa_get            = osd_capa_get,
1751         .do_object_sync         = osd_object_sync,
1752 };
1753
1754 static struct lu_object_operations osd_lu_obj_ops = {
1755         .loo_object_init        = osd_object_init,
1756         .loo_object_delete      = osd_object_delete,
1757         .loo_object_release     = osd_object_release,
1758         .loo_object_free        = osd_object_free,
1759         .loo_object_print       = osd_object_print,
1760         .loo_object_invariant   = osd_object_invariant,
1761 };
1762
1763 static int osd_otable_it_attr_get(const struct lu_env *env,
1764                                 struct dt_object *dt,
1765                                 struct lu_attr *attr,
1766                                 struct lustre_capa *capa)
1767 {
1768         attr->la_valid = 0;
1769         return 0;
1770 }
1771
1772 static struct dt_object_operations osd_obj_otable_it_ops = {
1773         .do_attr_get    = osd_otable_it_attr_get,
1774         .do_index_try   = osd_index_try,
1775 };
1776