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_IO);
 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         cfs_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         /* Remove object from inode accounting. It is not fatal for the destroy
 636          * operation if something goes wrong while updating accounting, but we
 637          * still log an error message to notify the administrator */
 638         rc = -zap_increment_int(osd->od_objset.os, osd->od_iusr_oid,
 639                         obj->oo_attr.la_uid, -1, oh->ot_tx);
 640         if (rc)
 641                 CERROR("%s: failed to remove "DFID" from accounting ZAP for usr"
 642                         " %d: rc = %d\n", osd->od_svname, PFID(fid),
 643                         obj->oo_attr.la_uid, rc);
 644         rc = -zap_increment_int(osd->od_objset.os, osd->od_igrp_oid,
 645                                 obj->oo_attr.la_gid, -1, oh->ot_tx);
 646         if (rc)
 647                 CERROR("%s: failed to remove "DFID" from accounting ZAP for grp"
 648                         " %d: rc = %d\n", osd->od_svname, PFID(fid),
 649                         obj->oo_attr.la_gid, rc);
 650
 651         /* kill object */
 652         rc = __osd_object_destroy(env, obj, oh->ot_tx, osd_obj_tag);
 653         if (rc) {
 654                 CERROR("%s: __osd_object_destroy() failed: rc = %d\n",
 655                        osd->od_svname, rc);
 656                 GOTO(out, rc);
 657         }
 658
 659 out:
 660         /* not needed in the cache anymore */
 661         set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
 662
 663         RETURN (0);
 664 }
 665
 666 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
 667 {
 668         struct osd_object *obj = osd_obj(l);
 669
 670         if (obj->oo_db != NULL) {
 671                 osd_object_sa_fini(obj);
 672                 if (obj->oo_sa_xattr) {
 673                         nvlist_free(obj->oo_sa_xattr);
 674                         obj->oo_sa_xattr = NULL;
 675                 }
 676                 sa_buf_rele(obj->oo_db, osd_obj_tag);
 677                 cfs_list_del(&obj->oo_sa_linkage);
 678                 obj->oo_db = NULL;
 679         }
 680 }
 681
 682 /*
 683  * Concurrency: ->loo_object_release() is called under site spin-lock.
 684  */
 685 static void osd_object_release(const struct lu_env *env,
 686                                struct lu_object *l)
 687 {
 688 }
 689
 690 /*
 691  * Concurrency: shouldn't matter.
 692  */
 693 static int osd_object_print(const struct lu_env *env, void *cookie,
 694                             lu_printer_t p, const struct lu_object *l)
 695 {
 696         struct osd_object *o = osd_obj(l);
 697
 698         return (*p)(env, cookie, LUSTRE_OSD_ZFS_NAME"-object@%p", o);
 699 }
 700
 701 static void osd_object_read_lock(const struct lu_env *env,
 702                                  struct dt_object *dt, unsigned role)
 703 {
 704         struct osd_object *obj = osd_dt_obj(dt);
 705
 706         LASSERT(osd_invariant(obj));
 707
 708         down_read(&obj->oo_sem);
 709 }
 710
 711 static void osd_object_write_lock(const struct lu_env *env,
 712                                   struct dt_object *dt, unsigned role)
 713 {
 714         struct osd_object *obj = osd_dt_obj(dt);
 715
 716         LASSERT(osd_invariant(obj));
 717
 718         down_write(&obj->oo_sem);
 719 }
 720
 721 static void osd_object_read_unlock(const struct lu_env *env,
 722                                    struct dt_object *dt)
 723 {
 724         struct osd_object *obj = osd_dt_obj(dt);
 725
 726         LASSERT(osd_invariant(obj));
 727         up_read(&obj->oo_sem);
 728 }
 729
 730 static void osd_object_write_unlock(const struct lu_env *env,
 731                                     struct dt_object *dt)
 732 {
 733         struct osd_object *obj = osd_dt_obj(dt);
 734
 735         LASSERT(osd_invariant(obj));
 736         up_write(&obj->oo_sem);
 737 }
 738
 739 static int osd_object_write_locked(const struct lu_env *env,
 740                                    struct dt_object *dt)
 741 {
 742         struct osd_object *obj = osd_dt_obj(dt);
 743         int rc = 1;
 744
 745         LASSERT(osd_invariant(obj));
 746
 747         if (down_write_trylock(&obj->oo_sem)) {
 748                 rc = 0;
 749                 up_write(&obj->oo_sem);
 750         }
 751         return rc;
 752 }
 753
 754 static int osd_attr_get(const struct lu_env *env,
 755                         struct dt_object *dt,
 756                         struct lu_attr *attr,
 757                         struct lustre_capa *capa)
 758 {
 759         struct osd_object       *obj = osd_dt_obj(dt);
 760         uint64_t                 blocks;
 761         uint32_t                 blksize;
 762
 763         LASSERT(dt_object_exists(dt));
 764         LASSERT(osd_invariant(obj));
 765         LASSERT(obj->oo_db);
 766
 767         read_lock(&obj->oo_attr_lock);
 768         *attr = obj->oo_attr;
 769         read_unlock(&obj->oo_attr_lock);
 770
 771         /* with ZFS_DEBUG zrl_add_debug() called by DB_DNODE_ENTER()
 772          * from within sa_object_size() can block on a mutex, so
 773          * we can't call sa_object_size() holding rwlock */
 774         sa_object_size(obj->oo_sa_hdl, &blksize, &blocks);
 775         /* we do not control size of indices, so always calculate
 776          * it from number of blocks reported by DMU */
 777         if (S_ISDIR(attr->la_mode))
 778                 attr->la_size = 512 * blocks;
 779         /* Block size may be not set; suggest maximal I/O transfers. */
 780         if (blksize == 0)
 781                 blksize = 1ULL << SPA_MAXBLOCKSHIFT;
 782
 783         attr->la_blksize = blksize;
 784         attr->la_blocks = blocks;
 785         attr->la_valid |= LA_BLOCKS | LA_BLKSIZE;
 786
 787         return 0;
 788 }
 789
 790 /* Simple wrapper on top of qsd API which implement quota transfer for osd
 791  * setattr needs. As a reminder, only the root user can change ownership of
 792  * a file, that's why EDQUOT & EINPROGRESS errors are discarded */
 793 static inline int qsd_transfer(const struct lu_env *env,
 794                                struct qsd_instance *qsd,
 795                                struct lquota_trans *trans, int qtype,
 796                                __u64 orig_id, __u64 new_id, __u64 bspace,
 797                                struct lquota_id_info *qi)
 798 {
 799         int     rc;
 800
 801         if (unlikely(qsd == NULL))
 802                 return 0;
 803
 804         LASSERT(qtype >= 0 && qtype < MAXQUOTAS);
 805         qi->lqi_type = qtype;
 806
 807         /* inode accounting */
 808         qi->lqi_is_blk = false;
 809
 810         /* one more inode for the new owner ... */
 811         qi->lqi_id.qid_uid = new_id;
 812         qi->lqi_space      = 1;
 813         rc = qsd_op_begin(env, qsd, trans, qi, NULL);
 814         if (rc == -EDQUOT || rc == -EINPROGRESS)
 815                 rc = 0;
 816         if (rc)
 817                 return rc;
 818
 819         /* and one less inode for the current id */
 820         qi->lqi_id.qid_uid = orig_id;;
 821         qi->lqi_space      = -1;
 822         /* can't get EDQUOT when reducing usage */
 823         rc = qsd_op_begin(env, qsd, trans, qi, NULL);
 824         if (rc == -EINPROGRESS)
 825                 rc = 0;
 826         if (rc)
 827                 return rc;
 828
 829         /* block accounting */
 830         qi->lqi_is_blk = true;
 831
 832         /* more blocks for the new owner ... */
 833         qi->lqi_id.qid_uid = new_id;
 834         qi->lqi_space      = bspace;
 835         rc = qsd_op_begin(env, qsd, trans, qi, NULL);
 836         if (rc == -EDQUOT || rc == -EINPROGRESS)
 837                 rc = 0;
 838         if (rc)
 839                 return rc;
 840
 841         /* and finally less blocks for the current owner */
 842         qi->lqi_id.qid_uid = orig_id;
 843         qi->lqi_space      = -bspace;
 844         rc = qsd_op_begin(env, qsd, trans, qi, NULL);
 845         /* can't get EDQUOT when reducing usage */
 846         if (rc == -EINPROGRESS)
 847                 rc = 0;
 848         return rc;
 849 }
 850
 851 static int osd_declare_attr_set(const struct lu_env *env,
 852                                 struct dt_object *dt,
 853                                 const struct lu_attr *attr,
 854                                 struct thandle *handle)
 855 {
 856         struct osd_thread_info  *info = osd_oti_get(env);
 857         char                    *buf = osd_oti_get(env)->oti_str;
 858         struct osd_object       *obj = osd_dt_obj(dt);
 859         struct osd_device       *osd = osd_obj2dev(obj);
 860         struct osd_thandle      *oh;
 861         uint64_t                 bspace;
 862         uint32_t                 blksize;
 863         int                      rc;
 864         ENTRY;
 865
 866         if (!dt_object_exists(dt)) {
 867                 /* XXX: sanity check that object creation is declared */
 868                 RETURN(0);
 869         }
 870
 871         LASSERT(handle != NULL);
 872         LASSERT(osd_invariant(obj));
 873
 874         oh = container_of0(handle, struct osd_thandle, ot_super);
 875
 876         LASSERT(obj->oo_sa_hdl != NULL);
 877         dmu_tx_hold_sa(oh->ot_tx, obj->oo_sa_hdl, 0);
 878
 879         sa_object_size(obj->oo_sa_hdl, &blksize, &bspace);
 880         bspace = toqb(bspace * blksize);
 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                                 RETURN(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                                 RETURN(rc);
 910                 }
 911         }
 912
 913         RETURN(0);
 914 }
 915
 916 /*
 917  * Set the attributes of an object
 918  *
 919  * The transaction passed to this routine must have
 920  * dmu_tx_hold_bonus(tx, oid) called and then assigned
 921  * to a transaction group.
 922  */
 923 static int osd_attr_set(const struct lu_env *env, struct dt_object *dt,
 924                         const struct lu_attr *la, struct thandle *handle,
 925                         struct lustre_capa *capa)
 926 {
 927         struct osd_object       *obj = osd_dt_obj(dt);
 928         struct osd_device       *osd = osd_obj2dev(obj);
 929         udmu_objset_t           *uos = &osd->od_objset;
 930         struct osd_thandle      *oh;
 931         struct osa_attr         *osa = &osd_oti_get(env)->oti_osa;
 932         sa_bulk_attr_t          *bulk;
 933         int                      cnt;
 934         int                      rc = 0;
 935
 936         ENTRY;
 937         LASSERT(handle != NULL);
 938         LASSERT(dt_object_exists(dt));
 939         LASSERT(osd_invariant(obj));
 940         LASSERT(obj->oo_sa_hdl);
 941
 942         oh = container_of0(handle, struct osd_thandle, ot_super);
 943         /* Assert that the transaction has been assigned to a
 944            transaction group. */
 945         LASSERT(oh->ot_tx->tx_txg != 0);
 946
 947         if (la->la_valid == 0)
 948                 RETURN(0);
 949
 950         OBD_ALLOC(bulk, sizeof(sa_bulk_attr_t) * 10);
 951         if (bulk == NULL)
 952                 RETURN(-ENOMEM);
 953
 954         /* do both accounting updates outside oo_attr_lock below */
 955         if ((la->la_valid & LA_UID) && (la->la_uid != obj->oo_attr.la_uid)) {
 956                 /* Update user accounting. Failure isn't fatal, but we still
 957                  * log an error message */
 958                 rc = -zap_increment_int(osd->od_objset.os, osd->od_iusr_oid,
 959                                         la->la_uid, 1, oh->ot_tx);
 960                 if (rc)
 961                         CERROR("%s: failed to update accounting ZAP for user "
 962                                 "%d (%d)\n", osd->od_svname, la->la_uid, rc);
 963                 rc = -zap_increment_int(osd->od_objset.os, osd->od_iusr_oid,
 964                                         obj->oo_attr.la_uid, -1, oh->ot_tx);
 965                 if (rc)
 966                         CERROR("%s: failed to update accounting ZAP for user "
 967                                 "%d (%d)\n", osd->od_svname,
 968                                 obj->oo_attr.la_uid, rc);
 969         }
 970         if ((la->la_valid & LA_GID) && (la->la_gid != obj->oo_attr.la_gid)) {
 971                 /* Update group accounting. Failure isn't fatal, but we still
 972                  * log an error message */
 973                 rc = -zap_increment_int(osd->od_objset.os, osd->od_igrp_oid,
 974                                         la->la_gid, 1, oh->ot_tx);
 975                 if (rc)
 976                         CERROR("%s: failed to update accounting ZAP for user "
 977                                 "%d (%d)\n", osd->od_svname, la->la_gid, rc);
 978                 rc = -zap_increment_int(osd->od_objset.os, osd->od_igrp_oid,
 979                                         obj->oo_attr.la_gid, -1, oh->ot_tx);
 980                 if (rc)
 981                         CERROR("%s: failed to update accounting ZAP for user "
 982                                 "%d (%d)\n", osd->od_svname,
 983                                 obj->oo_attr.la_gid, rc);
 984         }
 985
 986         write_lock(&obj->oo_attr_lock);
 987         cnt = 0;
 988         if (la->la_valid & LA_ATIME) {
 989                 osa->atime[0] = obj->oo_attr.la_atime = la->la_atime;
 990                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(uos), NULL,
 991                                  osa->atime, 16);
 992         }
 993         if (la->la_valid & LA_MTIME) {
 994                 osa->mtime[0] = obj->oo_attr.la_mtime = la->la_mtime;
 995                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(uos), NULL,
 996                                  osa->mtime, 16);
 997         }
 998         if (la->la_valid & LA_CTIME) {
 999                 osa->ctime[0] = obj->oo_attr.la_ctime = la->la_ctime;
1000                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(uos), NULL,
1001                                  osa->ctime, 16);
1002         }
1003         if (la->la_valid & LA_MODE) {
1004                 /* mode is stored along with type, so read it first */
1005                 obj->oo_attr.la_mode = (obj->oo_attr.la_mode & S_IFMT) |
1006                         (la->la_mode & ~S_IFMT);
1007                 osa->mode = obj->oo_attr.la_mode;
1008                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(uos), NULL,
1009                                  &osa->mode, 8);
1010         }
1011         if (la->la_valid & LA_SIZE) {
1012                 osa->size = obj->oo_attr.la_size = la->la_size;
1013                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(uos), NULL,
1014                                  &osa->size, 8);
1015         }
1016         if (la->la_valid & LA_NLINK) {
1017                 osa->nlink = obj->oo_attr.la_nlink = la->la_nlink;
1018                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(uos), NULL,
1019                                  &osa->nlink, 8);
1020         }
1021         if (la->la_valid & LA_RDEV) {
1022                 osa->rdev = obj->oo_attr.la_rdev = la->la_rdev;
1023                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_RDEV(uos), NULL,
1024                                  &osa->rdev, 8);
1025         }
1026         if (la->la_valid & LA_FLAGS) {
1027                 osa->flags = attrs_fs2zfs(la->la_flags);
1028                 /* many flags are not supported by zfs, so ensure a good cached
1029                  * copy */
1030                 obj->oo_attr.la_flags = attrs_zfs2fs(osa->flags);
1031                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(uos), NULL,
1032                                  &osa->flags, 8);
1033         }
1034         if (la->la_valid & LA_UID) {
1035                 osa->uid = obj->oo_attr.la_uid = la->la_uid;
1036                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(uos), NULL,
1037                                  &osa->uid, 8);
1038         }
1039         if (la->la_valid & LA_GID) {
1040                 osa->gid = obj->oo_attr.la_gid = la->la_gid;
1041                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(uos), NULL,
1042                                  &osa->gid, 8);
1043         }
1044         obj->oo_attr.la_valid |= la->la_valid;
1045         write_unlock(&obj->oo_attr_lock);
1046
1047         rc = osd_object_sa_bulk_update(obj, bulk, cnt, oh);
1048
1049         OBD_FREE(bulk, sizeof(sa_bulk_attr_t) * 10);
1050         RETURN(rc);
1051 }
1052
1053 /*
1054  * Object creation.
1055  *
1056  * XXX temporary solution.
1057  */
1058
1059 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
1060                         struct dt_object *parent, struct dt_object *child,
1061                         cfs_umode_t child_mode)
1062 {
1063         LASSERT(ah);
1064
1065         memset(ah, 0, sizeof(*ah));
1066         ah->dah_parent = parent;
1067         ah->dah_mode = child_mode;
1068 }
1069
1070 static int osd_declare_object_create(const struct lu_env *env,
1071                                      struct dt_object *dt,
1072                                      struct lu_attr *attr,
1073                                      struct dt_allocation_hint *hint,
1074                                      struct dt_object_format *dof,
1075                                      struct thandle *handle)
1076 {
1077         char                    *buf = osd_oti_get(env)->oti_str;
1078         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
1079         struct osd_object       *obj = osd_dt_obj(dt);
1080         struct osd_device       *osd = osd_obj2dev(obj);
1081         struct osd_thandle      *oh;
1082         uint64_t                 zapid;
1083         int                      rc;
1084         ENTRY;
1085
1086         LASSERT(dof);
1087
1088         switch (dof->dof_type) {
1089                 case DFT_REGULAR:
1090                 case DFT_SYM:
1091                 case DFT_NODE:
1092                         if (obj->oo_dt.do_body_ops == NULL)
1093                                 obj->oo_dt.do_body_ops = &osd_body_ops;
1094                         break;
1095                 default:
1096                         break;
1097         }
1098
1099         LASSERT(handle != NULL);
1100         oh = container_of0(handle, struct osd_thandle, ot_super);
1101         LASSERT(oh->ot_tx != NULL);
1102
1103         switch (dof->dof_type) {
1104                 case DFT_DIR:
1105                 case DFT_INDEX:
1106                         /* for zap create */
1107                         dmu_tx_hold_zap(oh->ot_tx, DMU_NEW_OBJECT, 1, NULL);
1108                         break;
1109                 case DFT_REGULAR:
1110                 case DFT_SYM:
1111                 case DFT_NODE:
1112                         /* first, we'll create new object */
1113                         dmu_tx_hold_bonus(oh->ot_tx, DMU_NEW_OBJECT);
1114                         break;
1115
1116                 default:
1117                         LBUG();
1118                         break;
1119         }
1120
1121         /* and we'll add it to some mapping */
1122         zapid = osd_get_name_n_idx(env, osd, fid, buf);
1123         dmu_tx_hold_bonus(oh->ot_tx, zapid);
1124         dmu_tx_hold_zap(oh->ot_tx, zapid, TRUE, buf);
1125
1126         /* we will also update inode accounting ZAPs */
1127         dmu_tx_hold_bonus(oh->ot_tx, osd->od_iusr_oid);
1128         dmu_tx_hold_zap(oh->ot_tx, osd->od_iusr_oid, TRUE, buf);
1129         dmu_tx_hold_bonus(oh->ot_tx, osd->od_igrp_oid);
1130         dmu_tx_hold_zap(oh->ot_tx, osd->od_igrp_oid, TRUE, buf);
1131
1132         dmu_tx_hold_sa_create(oh->ot_tx, ZFS_SA_BASE_ATTR_SIZE);
1133
1134         __osd_xattr_declare_set(env, obj, sizeof(struct lustre_mdt_attrs),
1135                                 XATTR_NAME_LMA, oh);
1136
1137         rc = osd_declare_quota(env, osd, attr->la_uid, attr->la_gid, 1, oh,
1138                                false, NULL, false);
1139         RETURN(rc);
1140 }
1141
1142 int __osd_attr_init(const struct lu_env *env, udmu_objset_t *uos, uint64_t oid,
1143                     dmu_tx_t *tx, struct lu_attr *la, uint64_t parent)
1144 {
1145         sa_bulk_attr_t  *bulk;
1146         sa_handle_t     *sa_hdl;
1147         struct osa_attr *osa = &osd_oti_get(env)->oti_osa;
1148         uint64_t         gen;
1149         uint64_t         crtime[2];
1150         timestruc_t      now;
1151         int              cnt;
1152         int              rc;
1153
1154         gethrestime(&now);
1155         gen = dmu_tx_get_txg(tx);
1156
1157         ZFS_TIME_ENCODE(&now, crtime);
1158
1159         osa->atime[0] = la->la_atime;
1160         osa->ctime[0] = la->la_ctime;
1161         osa->mtime[0] = la->la_mtime;
1162         osa->mode = la->la_mode;
1163         osa->uid = la->la_uid;
1164         osa->gid = la->la_gid;
1165         osa->rdev = la->la_rdev;
1166         osa->nlink = la->la_nlink;
1167         osa->flags = attrs_fs2zfs(la->la_flags);
1168         osa->size  = la->la_size;
1169
1170         /* Now add in all of the "SA" attributes */
1171         rc = -sa_handle_get(uos->os, oid, NULL, SA_HDL_PRIVATE, &sa_hdl);
1172         if (rc)
1173                 return rc;
1174
1175         OBD_ALLOC(bulk, sizeof(sa_bulk_attr_t) * 13);
1176         if (bulk == NULL) {
1177                 rc = -ENOMEM;
1178                 goto out;
1179         }
1180         /*
1181          * we need to create all SA below upon object create.
1182          *
1183          * XXX The attribute order matters since the accounting callback relies
1184          * on static offsets (i.e. SA_*_OFFSET, see zfs_space_delta_cb()) to
1185          * look up the UID/GID attributes. Moreover, the callback does not seem
1186          * to support the spill block.
1187          * We define attributes in the same order as SA_*_OFFSET in order to
1188          * work around the problem. See ORI-610.
1189          */
1190         cnt = 0;
1191         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(uos), NULL, &osa->mode, 8);
1192         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(uos), NULL, &osa->size, 8);
1193         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GEN(uos), NULL, &gen, 8);
1194         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(uos), NULL, &osa->uid, 8);
1195         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(uos), NULL, &osa->gid, 8);
1196         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_PARENT(uos), NULL, &parent, 8);
1197         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(uos), NULL, &osa->flags, 8);
1198         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(uos), NULL, osa->atime, 16);
1199         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(uos), NULL, osa->mtime, 16);
1200         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(uos), NULL, osa->ctime, 16);
1201         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CRTIME(uos), NULL, crtime, 16);
1202         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(uos), NULL, &osa->nlink, 8);
1203         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_RDEV(uos), NULL, &osa->rdev, 8);
1204
1205         rc = -sa_replace_all_by_template(sa_hdl, bulk, cnt, tx);
1206
1207         OBD_FREE(bulk, sizeof(sa_bulk_attr_t) * 13);
1208 out:
1209         sa_handle_destroy(sa_hdl);
1210         return rc;
1211 }
1212
1213 /*
1214  * The transaction passed to this routine must have
1215  * dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT) called and then assigned
1216  * to a transaction group.
1217  */
1218 int __osd_object_create(const struct lu_env *env, udmu_objset_t *uos,
1219                         dmu_buf_t **dbp, dmu_tx_t *tx, struct lu_attr *la,
1220                         uint64_t parent, void *tag)
1221 {
1222         uint64_t oid;
1223         int      rc;
1224
1225         LASSERT(tag);
1226         spin_lock(&uos->lock);
1227         uos->objects++;
1228         spin_unlock(&uos->lock);
1229
1230         /* Assert that the transaction has been assigned to a
1231            transaction group. */
1232         LASSERT(tx->tx_txg != 0);
1233
1234         /* Create a new DMU object. */
1235         oid = dmu_object_alloc(uos->os, DMU_OT_PLAIN_FILE_CONTENTS, 0,
1236                                DMU_OT_SA, DN_MAX_BONUSLEN, tx);
1237         rc = -sa_buf_hold(uos->os, oid, tag, dbp);
1238         if (rc)
1239                 return rc;
1240
1241         LASSERT(la->la_valid & LA_MODE);
1242         la->la_size = 0;
1243         la->la_nlink = 1;
1244
1245         return __osd_attr_init(env, uos, oid, tx, la, parent);
1246 }
1247
1248 /*
1249  * The transaction passed to this routine must have
1250  * dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, ...) called and then assigned
1251  * to a transaction group.
1252  *
1253  * Using ZAP_FLAG_HASH64 will force the ZAP to always be a FAT ZAP.
1254  * This is fine for directories today, because storing the FID in the dirent
1255  * will also require a FAT ZAP.  If there is a new type of micro ZAP created
1256  * then we might need to re-evaluate the use of this flag and instead do
1257  * a conversion from the different internal ZAP hash formats being used. */
1258 int __osd_zap_create(const struct lu_env *env, udmu_objset_t *uos,
1259                      dmu_buf_t **zap_dbp, dmu_tx_t *tx,
1260                      struct lu_attr *la, uint64_t parent,
1261                      void *tag, zap_flags_t flags)
1262 {
1263         uint64_t oid;
1264         int      rc;
1265
1266         LASSERT(tag);
1267
1268         spin_lock(&uos->lock);
1269         uos->objects++;
1270         spin_unlock(&uos->lock);
1271
1272         /* Assert that the transaction has been assigned to a
1273            transaction group. */
1274         LASSERT(tx->tx_txg != 0);
1275
1276         oid = zap_create_flags(uos->os, 0, flags | ZAP_FLAG_HASH64,
1277                                DMU_OT_DIRECTORY_CONTENTS, 12, 12,
1278                                DMU_OT_SA, DN_MAX_BONUSLEN, tx);
1279
1280         rc = -sa_buf_hold(uos->os, oid, tag, zap_dbp);
1281         if (rc)
1282                 return rc;
1283
1284         LASSERT(la->la_valid & LA_MODE);
1285         la->la_size = 2;
1286         la->la_nlink = 1;
1287
1288         return __osd_attr_init(env, uos, oid, tx, la, parent);
1289 }
1290
1291 static dmu_buf_t *osd_mkidx(const struct lu_env *env, struct osd_device *osd,
1292                             struct lu_attr *la, uint64_t parent,
1293                             struct osd_thandle *oh)
1294 {
1295         dmu_buf_t *db;
1296         int        rc;
1297
1298         /* Index file should be created as regular file in order not to confuse
1299          * ZPL which could interpret them as directory.
1300          * We set ZAP_FLAG_UINT64_KEY to let ZFS know than we are going to use
1301          * binary keys */
1302         LASSERT(S_ISREG(la->la_mode));
1303         rc = __osd_zap_create(env, &osd->od_objset, &db, oh->ot_tx, la,
1304                               parent, osd_obj_tag, ZAP_FLAG_UINT64_KEY);
1305         if (rc)
1306                 return ERR_PTR(rc);
1307         return db;
1308 }
1309
1310 static dmu_buf_t *osd_mkdir(const struct lu_env *env, struct osd_device *osd,
1311                             struct lu_attr *la, uint64_t parent,
1312                             struct osd_thandle *oh)
1313 {
1314         dmu_buf_t *db;
1315         int        rc;
1316
1317         LASSERT(S_ISDIR(la->la_mode));
1318         rc = __osd_zap_create(env, &osd->od_objset, &db, oh->ot_tx, la,
1319                               parent, osd_obj_tag, 0);
1320         if (rc)
1321                 return ERR_PTR(rc);
1322         return db;
1323 }
1324
1325 static dmu_buf_t* osd_mkreg(const struct lu_env *env, struct osd_device *osd,
1326                             struct lu_attr *la, uint64_t parent,
1327                             struct osd_thandle *oh)
1328 {
1329         dmu_buf_t *db;
1330         int         rc;
1331
1332         LASSERT(S_ISREG(la->la_mode));
1333         rc = __osd_object_create(env, &osd->od_objset, &db, oh->ot_tx, la,
1334                                  parent, osd_obj_tag);
1335         if (rc)
1336                 return ERR_PTR(rc);
1337
1338         /*
1339          * XXX: a hack, OST to use bigger blocksize. we need
1340          * a method in OSD API to control this from OFD/MDD
1341          */
1342         if (!lu_device_is_md(osd2lu_dev(osd))) {
1343                 rc = -dmu_object_set_blocksize(osd->od_objset.os,
1344                                                db->db_object,
1345                                 128 << 10, 0, oh->ot_tx);
1346                 if (unlikely(rc)) {
1347                         CERROR("%s: can't change blocksize: %d\n",
1348                                osd->od_svname, rc);
1349                         return ERR_PTR(rc);
1350                 }
1351         }
1352
1353         return db;
1354 }
1355
1356 static dmu_buf_t *osd_mksym(const struct lu_env *env, struct osd_device *osd,
1357                             struct lu_attr *la, uint64_t parent,
1358                             struct osd_thandle *oh)
1359 {
1360         dmu_buf_t *db;
1361         int        rc;
1362
1363         LASSERT(S_ISLNK(la->la_mode));
1364         rc = __osd_object_create(env, &osd->od_objset, &db, oh->ot_tx, la,
1365                                  parent, osd_obj_tag);
1366         if (rc)
1367                 return ERR_PTR(rc);
1368         return db;
1369 }
1370
1371 static dmu_buf_t *osd_mknod(const struct lu_env *env, struct osd_device *osd,
1372                             struct lu_attr *la, uint64_t parent,
1373                             struct osd_thandle *oh)
1374 {
1375         dmu_buf_t *db;
1376         int        rc;
1377
1378         la->la_valid = LA_MODE;
1379         if (S_ISCHR(la->la_mode) || S_ISBLK(la->la_mode))
1380                 la->la_valid |= LA_RDEV;
1381
1382         rc = __osd_object_create(env, &osd->od_objset, &db, oh->ot_tx, la,
1383                                  parent, osd_obj_tag);
1384         if (rc)
1385                 return ERR_PTR(rc);
1386         return db;
1387 }
1388
1389 typedef dmu_buf_t *(*osd_obj_type_f)(const struct lu_env *env,
1390                                      struct osd_device *osd,
1391                                      struct lu_attr *la,
1392                                      uint64_t parent,
1393                                      struct osd_thandle *oh);
1394
1395 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
1396 {
1397         osd_obj_type_f result;
1398
1399         switch (type) {
1400         case DFT_DIR:
1401                 result = osd_mkdir;
1402                 break;
1403         case DFT_INDEX:
1404                 result = osd_mkidx;
1405                 break;
1406         case DFT_REGULAR:
1407                 result = osd_mkreg;
1408                 break;
1409         case DFT_SYM:
1410                 result = osd_mksym;
1411                 break;
1412         case DFT_NODE:
1413                 result = osd_mknod;
1414                 break;
1415         default:
1416                 LBUG();
1417                 break;
1418         }
1419         return result;
1420 }
1421
1422 /*
1423  * Primitives for directory (i.e. ZAP) handling
1424  */
1425 static inline int osd_init_lma(const struct lu_env *env, struct osd_object *obj,
1426                                const struct lu_fid *fid, struct osd_thandle *oh)
1427 {
1428         struct osd_thread_info  *info = osd_oti_get(env);
1429         struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
1430         struct lu_buf            buf;
1431         int rc;
1432
1433         lustre_lma_init(lma, fid, 0);
1434         lustre_lma_swab(lma);
1435         buf.lb_buf = lma;
1436         buf.lb_len = sizeof(*lma);
1437
1438         rc = osd_xattr_set_internal(env, obj, &buf, XATTR_NAME_LMA,
1439                                     LU_XATTR_CREATE, oh, BYPASS_CAPA);
1440
1441         return rc;
1442 }
1443
1444 /*
1445  * Concurrency: @dt is write locked.
1446  */
1447 static int osd_object_create(const struct lu_env *env, struct dt_object *dt,
1448                              struct lu_attr *attr,
1449                              struct dt_allocation_hint *hint,
1450                              struct dt_object_format *dof,
1451                              struct thandle *th)
1452 {
1453         struct zpl_direntry     *zde = &osd_oti_get(env)->oti_zde.lzd_reg;
1454         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
1455         struct osd_object       *obj = osd_dt_obj(dt);
1456         struct osd_device       *osd = osd_obj2dev(obj);
1457         char                    *buf = osd_oti_get(env)->oti_str;
1458         struct osd_thandle      *oh;
1459         dmu_buf_t               *db;
1460         uint64_t                 zapid;
1461         int                      rc;
1462
1463         ENTRY;
1464
1465         /* concurrent create declarations should not see
1466          * the object inconsistent (db, attr, etc).
1467          * in regular cases acquisition should be cheap */
1468         down(&obj->oo_guard);
1469
1470         LASSERT(osd_invariant(obj));
1471         LASSERT(!dt_object_exists(dt));
1472         LASSERT(dof != NULL);
1473
1474         LASSERT(th != NULL);
1475         oh = container_of0(th, struct osd_thandle, ot_super);
1476
1477         /*
1478          * XXX missing: Quote handling.
1479          */
1480
1481         LASSERT(obj->oo_db == NULL);
1482
1483         /* to follow ZFS on-disk format we need
1484          * to initialize parent dnode properly */
1485         zapid = 0;
1486         if (hint && hint->dah_parent)
1487                 zapid = osd_dt_obj(hint->dah_parent)->oo_db->db_object;
1488
1489         db = osd_create_type_f(dof->dof_type)(env, osd, attr, zapid, oh);
1490         if (IS_ERR(db))
1491                 GOTO(out, rc = PTR_ERR(th));
1492
1493         zde->zde_pad = 0;
1494         zde->zde_dnode = db->db_object;
1495         zde->zde_type = IFTODT(attr->la_mode & S_IFMT);
1496
1497         zapid = osd_get_name_n_idx(env, osd, fid, buf);
1498
1499         rc = -zap_add(osd->od_objset.os, zapid, buf, 8, 1, zde, oh->ot_tx);
1500         if (rc)
1501                 GOTO(out, rc);
1502
1503         /* Add new object to inode accounting.
1504          * Errors are not considered as fatal */
1505         rc = -zap_increment_int(osd->od_objset.os, osd->od_iusr_oid,
1506                                 (attr->la_valid & LA_UID) ? attr->la_uid : 0, 1,
1507                                 oh->ot_tx);
1508         if (rc)
1509                 CERROR("%s: failed to add "DFID" to accounting ZAP for usr %d "
1510                         "(%d)\n", osd->od_svname, PFID(fid), attr->la_uid, rc);
1511         rc = -zap_increment_int(osd->od_objset.os, osd->od_igrp_oid,
1512                                 (attr->la_valid & LA_GID) ? attr->la_gid : 0, 1,
1513                                 oh->ot_tx);
1514         if (rc)
1515                 CERROR("%s: failed to add "DFID" to accounting ZAP for grp %d "
1516                         "(%d)\n", osd->od_svname, PFID(fid), attr->la_gid, rc);
1517
1518         /* configure new osd object */
1519         obj->oo_db = db;
1520         rc = osd_object_init0(env, obj);
1521         LASSERT(ergo(rc == 0, dt_object_exists(dt)));
1522         LASSERT(osd_invariant(obj));
1523
1524         rc = osd_init_lma(env, obj, fid, oh);
1525         if (rc) {
1526                 CERROR("%s: can not set LMA on "DFID": rc = %d\n",
1527                        osd->od_svname, PFID(fid), rc);
1528                 /* ignore errors during LMA initialization */
1529                 rc = 0;
1530         }
1531
1532 out:
1533         up(&obj->oo_guard);
1534         RETURN(rc);
1535 }
1536
1537 static int osd_declare_object_ref_add(const struct lu_env *env,
1538                                       struct dt_object *dt,
1539                                       struct thandle *th)
1540 {
1541         return osd_declare_attr_set(env, dt, NULL, th);
1542 }
1543
1544 /*
1545  * Concurrency: @dt is write locked.
1546  */
1547 static int osd_object_ref_add(const struct lu_env *env,
1548                               struct dt_object *dt,
1549                               struct thandle *handle)
1550 {
1551         struct osd_object       *obj = osd_dt_obj(dt);
1552         struct osd_thandle      *oh;
1553         struct osd_device       *osd = osd_obj2dev(obj);
1554         udmu_objset_t           *uos = &osd->od_objset;
1555         uint64_t                 nlink;
1556         int rc;
1557
1558         ENTRY;
1559
1560         LASSERT(osd_invariant(obj));
1561         LASSERT(dt_object_exists(dt));
1562         LASSERT(obj->oo_sa_hdl != NULL);
1563
1564         oh = container_of0(handle, struct osd_thandle, ot_super);
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 osd_declare_object_ref_del(const struct lu_env *env,
1575                                       struct dt_object *dt,
1576                                       struct thandle *handle)
1577 {
1578         return osd_declare_attr_set(env, dt, NULL, handle);
1579 }
1580
1581 /*
1582  * Concurrency: @dt is write locked.
1583  */
1584 static int osd_object_ref_del(const struct lu_env *env,
1585                               struct dt_object *dt,
1586                               struct thandle *handle)
1587 {
1588         struct osd_object       *obj = osd_dt_obj(dt);
1589         struct osd_thandle      *oh;
1590         struct osd_device       *osd = osd_obj2dev(obj);
1591         udmu_objset_t           *uos = &osd->od_objset;
1592         uint64_t                 nlink;
1593         int                      rc;
1594
1595         ENTRY;
1596
1597         LASSERT(osd_invariant(obj));
1598         LASSERT(dt_object_exists(dt));
1599         LASSERT(obj->oo_sa_hdl != NULL);
1600
1601         oh = container_of0(handle, struct osd_thandle, ot_super);
1602         LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
1603
1604         write_lock(&obj->oo_attr_lock);
1605         nlink = --obj->oo_attr.la_nlink;
1606         write_unlock(&obj->oo_attr_lock);
1607
1608         rc = osd_object_sa_update(obj, SA_ZPL_LINKS(uos), &nlink, 8, oh);
1609         return rc;
1610 }
1611
1612 static int capa_is_sane(const struct lu_env *env, struct osd_device *dev,
1613                         struct lustre_capa *capa, struct lustre_capa_key *keys)
1614 {
1615         struct osd_thread_info  *oti = osd_oti_get(env);
1616         struct obd_capa         *oc;
1617         int                      i, rc = 0;
1618         ENTRY;
1619
1620         oc = capa_lookup(dev->od_capa_hash, capa, 0);
1621         if (oc) {
1622                 if (capa_is_expired(oc)) {
1623                         DEBUG_CAPA(D_ERROR, capa, "expired");
1624                         rc = -ESTALE;
1625                 }
1626                 capa_put(oc);
1627                 RETURN(rc);
1628         }
1629
1630         spin_lock(&capa_lock);
1631         for (i = 0; i < 2; i++) {
1632                 if (keys[i].lk_keyid == capa->lc_keyid) {
1633                         oti->oti_capa_key = keys[i];
1634                         break;
1635                 }
1636         }
1637         spin_unlock(&capa_lock);
1638
1639         if (i == 2) {
1640                 DEBUG_CAPA(D_ERROR, capa, "no matched capa key");
1641                 RETURN(-ESTALE);
1642         }
1643
1644         rc = capa_hmac(oti->oti_capa.lc_hmac, capa, oti->oti_capa_key.lk_key);
1645         if (rc)
1646                 RETURN(rc);
1647         if (memcmp(oti->oti_capa.lc_hmac, capa->lc_hmac, sizeof(capa->lc_hmac)))
1648         {
1649                 DEBUG_CAPA(D_ERROR, capa, "HMAC mismatch");
1650                 RETURN(-EACCES);
1651         }
1652
1653         oc = capa_add(dev->od_capa_hash, capa);
1654         capa_put(oc);
1655
1656         RETURN(0);
1657 }
1658
1659 static int osd_object_auth(const struct lu_env *env, struct dt_object *dt,
1660                            struct lustre_capa *capa, __u64 opc)
1661 {
1662         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
1663         struct osd_device       *dev = osd_dev(dt->do_lu.lo_dev);
1664         int                      rc;
1665
1666         if (!dev->od_fl_capa)
1667                 return 0;
1668
1669         if (capa == BYPASS_CAPA)
1670                 return 0;
1671
1672         if (!capa) {
1673                 CERROR("no capability is provided for fid "DFID"\n", PFID(fid));
1674                 return -EACCES;
1675         }
1676
1677         if (!lu_fid_eq(fid, &capa->lc_fid)) {
1678                 DEBUG_CAPA(D_ERROR, capa, "fid "DFID" mismatch with",PFID(fid));
1679                 return -EACCES;
1680         }
1681
1682         if (!capa_opc_supported(capa, opc)) {
1683                 DEBUG_CAPA(D_ERROR, capa, "opc "LPX64" not supported by", opc);
1684                 return -EACCES;
1685         }
1686
1687         if ((rc = capa_is_sane(env, dev, capa, dev->od_capa_keys))) {
1688                 DEBUG_CAPA(D_ERROR, capa, "insane (rc %d)", rc);
1689                 return -EACCES;
1690         }
1691
1692         return 0;
1693 }
1694
1695 static struct obd_capa *osd_capa_get(const struct lu_env *env,
1696                                      struct dt_object *dt,
1697                                      struct lustre_capa *old,
1698                                      __u64 opc)
1699 {
1700         struct osd_thread_info  *info = osd_oti_get(env);
1701         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
1702         struct osd_object       *obj = osd_dt_obj(dt);
1703         struct osd_device       *dev = osd_obj2dev(obj);
1704         struct lustre_capa_key  *key = &info->oti_capa_key;
1705         struct lustre_capa      *capa = &info->oti_capa;
1706         struct obd_capa         *oc;
1707         int                      rc;
1708         ENTRY;
1709
1710         if (!dev->od_fl_capa)
1711                 RETURN(ERR_PTR(-ENOENT));
1712
1713         LASSERT(dt_object_exists(dt));
1714         LASSERT(osd_invariant(obj));
1715
1716         /* renewal sanity check */
1717         if (old && osd_object_auth(env, dt, old, opc))
1718                 RETURN(ERR_PTR(-EACCES));
1719
1720         capa->lc_fid = *fid;
1721         capa->lc_opc = opc;
1722         capa->lc_uid = 0;
1723         capa->lc_flags = dev->od_capa_alg << 24;
1724         capa->lc_timeout = dev->od_capa_timeout;
1725         capa->lc_expiry = 0;
1726
1727         oc = capa_lookup(dev->od_capa_hash, capa, 1);
1728         if (oc) {
1729                 LASSERT(!capa_is_expired(oc));
1730                 RETURN(oc);
1731         }
1732
1733         spin_lock(&capa_lock);
1734         *key = dev->od_capa_keys[1];
1735         spin_unlock(&capa_lock);
1736
1737         capa->lc_keyid = key->lk_keyid;
1738         capa->lc_expiry = cfs_time_current_sec() + dev->od_capa_timeout;
1739
1740         rc = capa_hmac(capa->lc_hmac, capa, key->lk_key);
1741         if (rc) {
1742                 DEBUG_CAPA(D_ERROR, capa, "HMAC failed: %d for", rc);
1743                 LBUG();
1744                 RETURN(ERR_PTR(rc));
1745         }
1746
1747         oc = capa_add(dev->od_capa_hash, capa);
1748         RETURN(oc);
1749 }
1750
1751 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt)
1752 {
1753         struct osd_device *osd = osd_obj2dev(osd_dt_obj(dt));
1754         ENTRY;
1755
1756         /* XXX: no other option than syncing the whole filesystem until we
1757          * support ZIL */
1758         txg_wait_synced(dmu_objset_pool(osd->od_objset.os), 0ULL);
1759
1760         RETURN(0);
1761 }
1762
1763 static struct dt_object_operations osd_obj_ops = {
1764         .do_read_lock           = osd_object_read_lock,
1765         .do_write_lock          = osd_object_write_lock,
1766         .do_read_unlock         = osd_object_read_unlock,
1767         .do_write_unlock        = osd_object_write_unlock,
1768         .do_write_locked        = osd_object_write_locked,
1769         .do_attr_get            = osd_attr_get,
1770         .do_declare_attr_set    = osd_declare_attr_set,
1771         .do_attr_set            = osd_attr_set,
1772         .do_ah_init             = osd_ah_init,
1773         .do_declare_create      = osd_declare_object_create,
1774         .do_create              = osd_object_create,
1775         .do_declare_destroy     = osd_declare_object_destroy,
1776         .do_destroy             = osd_object_destroy,
1777         .do_index_try           = osd_index_try,
1778         .do_declare_ref_add     = osd_declare_object_ref_add,
1779         .do_ref_add             = osd_object_ref_add,
1780         .do_declare_ref_del     = osd_declare_object_ref_del,
1781         .do_ref_del             = osd_object_ref_del,
1782         .do_xattr_get           = osd_xattr_get,
1783         .do_declare_xattr_set   = osd_declare_xattr_set,
1784         .do_xattr_set           = osd_xattr_set,
1785         .do_declare_xattr_del   = osd_declare_xattr_del,
1786         .do_xattr_del           = osd_xattr_del,
1787         .do_xattr_list          = osd_xattr_list,
1788         .do_capa_get            = osd_capa_get,
1789         .do_object_sync         = osd_object_sync,
1790 };
1791
1792 static struct lu_object_operations osd_lu_obj_ops = {
1793         .loo_object_init        = osd_object_init,
1794         .loo_object_delete      = osd_object_delete,
1795         .loo_object_release     = osd_object_release,
1796         .loo_object_free        = osd_object_free,
1797         .loo_object_print       = osd_object_print,
1798         .loo_object_invariant   = osd_object_invariant,
1799 };
1800
1801 static int osd_otable_it_attr_get(const struct lu_env *env,
1802                                 struct dt_object *dt,
1803                                 struct lu_attr *attr,
1804                                 struct lustre_capa *capa)
1805 {
1806         attr->la_valid = 0;
1807         return 0;
1808 }
1809
1810 static struct dt_object_operations osd_obj_otable_it_ops = {
1811         .do_attr_get    = osd_otable_it_attr_get,
1812         .do_index_try   = osd_index_try,
1813 };
1814