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         /* 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         LASSERT(oh->ot_tx != NULL);
 878         dmu_tx_hold_sa(oh->ot_tx, obj->oo_sa_hdl, 0);
 879         if (oh->ot_tx->tx_err != 0)
 880                 RETURN(-oh->ot_tx->tx_err);
 881
 882         sa_object_size(obj->oo_sa_hdl, &blksize, &bspace);
 883         bspace = toqb(bspace * blksize);
 884
 885         if (attr && attr->la_valid & LA_UID) {
 886                 /* account for user inode tracking ZAP update */
 887                 dmu_tx_hold_bonus(oh->ot_tx, osd->od_iusr_oid);
 888                 dmu_tx_hold_zap(oh->ot_tx, osd->od_iusr_oid, TRUE, buf);
 889
 890                 /* quota enforcement for user */
 891                 if (attr->la_uid != obj->oo_attr.la_uid) {
 892                         rc = qsd_transfer(env, osd->od_quota_slave,
 893                                           &oh->ot_quota_trans, USRQUOTA,
 894                                           obj->oo_attr.la_uid, attr->la_uid,
 895                                           bspace, &info->oti_qi);
 896                         if (rc)
 897                                 RETURN(rc);
 898                 }
 899         }
 900         if (attr && attr->la_valid & LA_GID) {
 901                 /* account for user inode tracking ZAP update */
 902                 dmu_tx_hold_bonus(oh->ot_tx, osd->od_igrp_oid);
 903                 dmu_tx_hold_zap(oh->ot_tx, osd->od_igrp_oid, TRUE, buf);
 904
 905                 /* quota enforcement for group */
 906                 if (attr->la_gid != obj->oo_attr.la_gid) {
 907                         rc = qsd_transfer(env, osd->od_quota_slave,
 908                                           &oh->ot_quota_trans, GRPQUOTA,
 909                                           obj->oo_attr.la_gid, attr->la_gid,
 910                                           bspace, &info->oti_qi);
 911                         if (rc)
 912                                 RETURN(rc);
 913                 }
 914         }
 915
 916         RETURN(0);
 917 }
 918
 919 /*
 920  * Set the attributes of an object
 921  *
 922  * The transaction passed to this routine must have
 923  * dmu_tx_hold_bonus(tx, oid) called and then assigned
 924  * to a transaction group.
 925  */
 926 static int osd_attr_set(const struct lu_env *env, struct dt_object *dt,
 927                         const struct lu_attr *la, struct thandle *handle,
 928                         struct lustre_capa *capa)
 929 {
 930         struct osd_object       *obj = osd_dt_obj(dt);
 931         struct osd_device       *osd = osd_obj2dev(obj);
 932         udmu_objset_t           *uos = &osd->od_objset;
 933         struct osd_thandle      *oh;
 934         struct osa_attr         *osa = &osd_oti_get(env)->oti_osa;
 935         sa_bulk_attr_t          *bulk;
 936         int                      cnt;
 937         int                      rc = 0;
 938
 939         ENTRY;
 940         LASSERT(handle != NULL);
 941         LASSERT(dt_object_exists(dt));
 942         LASSERT(osd_invariant(obj));
 943         LASSERT(obj->oo_sa_hdl);
 944
 945         oh = container_of0(handle, struct osd_thandle, ot_super);
 946         /* Assert that the transaction has been assigned to a
 947            transaction group. */
 948         LASSERT(oh->ot_tx->tx_txg != 0);
 949
 950         if (la->la_valid == 0)
 951                 RETURN(0);
 952
 953         OBD_ALLOC(bulk, sizeof(sa_bulk_attr_t) * 10);
 954         if (bulk == NULL)
 955                 RETURN(-ENOMEM);
 956
 957         /* do both accounting updates outside oo_attr_lock below */
 958         if ((la->la_valid & LA_UID) && (la->la_uid != obj->oo_attr.la_uid)) {
 959                 /* Update user accounting. Failure isn't fatal, but we still
 960                  * log an error message */
 961                 rc = -zap_increment_int(osd->od_objset.os, osd->od_iusr_oid,
 962                                         la->la_uid, 1, oh->ot_tx);
 963                 if (rc)
 964                         CERROR("%s: failed to update accounting ZAP for user "
 965                                 "%d (%d)\n", osd->od_svname, la->la_uid, rc);
 966                 rc = -zap_increment_int(osd->od_objset.os, osd->od_iusr_oid,
 967                                         obj->oo_attr.la_uid, -1, oh->ot_tx);
 968                 if (rc)
 969                         CERROR("%s: failed to update accounting ZAP for user "
 970                                 "%d (%d)\n", osd->od_svname,
 971                                 obj->oo_attr.la_uid, rc);
 972         }
 973         if ((la->la_valid & LA_GID) && (la->la_gid != obj->oo_attr.la_gid)) {
 974                 /* Update group accounting. Failure isn't fatal, but we still
 975                  * log an error message */
 976                 rc = -zap_increment_int(osd->od_objset.os, osd->od_igrp_oid,
 977                                         la->la_gid, 1, oh->ot_tx);
 978                 if (rc)
 979                         CERROR("%s: failed to update accounting ZAP for user "
 980                                 "%d (%d)\n", osd->od_svname, la->la_gid, rc);
 981                 rc = -zap_increment_int(osd->od_objset.os, osd->od_igrp_oid,
 982                                         obj->oo_attr.la_gid, -1, oh->ot_tx);
 983                 if (rc)
 984                         CERROR("%s: failed to update accounting ZAP for user "
 985                                 "%d (%d)\n", osd->od_svname,
 986                                 obj->oo_attr.la_gid, rc);
 987         }
 988
 989         write_lock(&obj->oo_attr_lock);
 990         cnt = 0;
 991         if (la->la_valid & LA_ATIME) {
 992                 osa->atime[0] = obj->oo_attr.la_atime = la->la_atime;
 993                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(uos), NULL,
 994                                  osa->atime, 16);
 995         }
 996         if (la->la_valid & LA_MTIME) {
 997                 osa->mtime[0] = obj->oo_attr.la_mtime = la->la_mtime;
 998                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(uos), NULL,
 999                                  osa->mtime, 16);
1000         }
1001         if (la->la_valid & LA_CTIME) {
1002                 osa->ctime[0] = obj->oo_attr.la_ctime = la->la_ctime;
1003                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(uos), NULL,
1004                                  osa->ctime, 16);
1005         }
1006         if (la->la_valid & LA_MODE) {
1007                 /* mode is stored along with type, so read it first */
1008                 obj->oo_attr.la_mode = (obj->oo_attr.la_mode & S_IFMT) |
1009                         (la->la_mode & ~S_IFMT);
1010                 osa->mode = obj->oo_attr.la_mode;
1011                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(uos), NULL,
1012                                  &osa->mode, 8);
1013         }
1014         if (la->la_valid & LA_SIZE) {
1015                 osa->size = obj->oo_attr.la_size = la->la_size;
1016                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(uos), NULL,
1017                                  &osa->size, 8);
1018         }
1019         if (la->la_valid & LA_NLINK) {
1020                 osa->nlink = obj->oo_attr.la_nlink = la->la_nlink;
1021                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(uos), NULL,
1022                                  &osa->nlink, 8);
1023         }
1024         if (la->la_valid & LA_RDEV) {
1025                 osa->rdev = obj->oo_attr.la_rdev = la->la_rdev;
1026                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_RDEV(uos), NULL,
1027                                  &osa->rdev, 8);
1028         }
1029         if (la->la_valid & LA_FLAGS) {
1030                 osa->flags = attrs_fs2zfs(la->la_flags);
1031                 /* many flags are not supported by zfs, so ensure a good cached
1032                  * copy */
1033                 obj->oo_attr.la_flags = attrs_zfs2fs(osa->flags);
1034                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(uos), NULL,
1035                                  &osa->flags, 8);
1036         }
1037         if (la->la_valid & LA_UID) {
1038                 osa->uid = obj->oo_attr.la_uid = la->la_uid;
1039                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(uos), NULL,
1040                                  &osa->uid, 8);
1041         }
1042         if (la->la_valid & LA_GID) {
1043                 osa->gid = obj->oo_attr.la_gid = la->la_gid;
1044                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(uos), NULL,
1045                                  &osa->gid, 8);
1046         }
1047         obj->oo_attr.la_valid |= la->la_valid;
1048         write_unlock(&obj->oo_attr_lock);
1049
1050         rc = osd_object_sa_bulk_update(obj, bulk, cnt, oh);
1051
1052         OBD_FREE(bulk, sizeof(sa_bulk_attr_t) * 10);
1053         RETURN(rc);
1054 }
1055
1056 /*
1057  * Object creation.
1058  *
1059  * XXX temporary solution.
1060  */
1061
1062 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
1063                         struct dt_object *parent, struct dt_object *child,
1064                         umode_t child_mode)
1065 {
1066         LASSERT(ah);
1067
1068         memset(ah, 0, sizeof(*ah));
1069         ah->dah_parent = parent;
1070         ah->dah_mode = child_mode;
1071 }
1072
1073 static int osd_declare_object_create(const struct lu_env *env,
1074                                      struct dt_object *dt,
1075                                      struct lu_attr *attr,
1076                                      struct dt_allocation_hint *hint,
1077                                      struct dt_object_format *dof,
1078                                      struct thandle *handle)
1079 {
1080         char                    *buf = osd_oti_get(env)->oti_str;
1081         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
1082         struct osd_object       *obj = osd_dt_obj(dt);
1083         struct osd_device       *osd = osd_obj2dev(obj);
1084         struct osd_thandle      *oh;
1085         uint64_t                 zapid;
1086         int                      rc;
1087         ENTRY;
1088
1089         LASSERT(dof);
1090
1091         switch (dof->dof_type) {
1092                 case DFT_REGULAR:
1093                 case DFT_SYM:
1094                 case DFT_NODE:
1095                         if (obj->oo_dt.do_body_ops == NULL)
1096                                 obj->oo_dt.do_body_ops = &osd_body_ops;
1097                         break;
1098                 default:
1099                         break;
1100         }
1101
1102         LASSERT(handle != NULL);
1103         oh = container_of0(handle, struct osd_thandle, ot_super);
1104         LASSERT(oh->ot_tx != NULL);
1105
1106         switch (dof->dof_type) {
1107                 case DFT_DIR:
1108                 case DFT_INDEX:
1109                         /* for zap create */
1110                         dmu_tx_hold_zap(oh->ot_tx, DMU_NEW_OBJECT, 1, NULL);
1111                         break;
1112                 case DFT_REGULAR:
1113                 case DFT_SYM:
1114                 case DFT_NODE:
1115                         /* first, we'll create new object */
1116                         dmu_tx_hold_bonus(oh->ot_tx, DMU_NEW_OBJECT);
1117                         break;
1118
1119                 default:
1120                         LBUG();
1121                         break;
1122         }
1123
1124         /* and we'll add it to some mapping */
1125         zapid = osd_get_name_n_idx(env, osd, fid, buf);
1126         dmu_tx_hold_bonus(oh->ot_tx, zapid);
1127         dmu_tx_hold_zap(oh->ot_tx, zapid, TRUE, buf);
1128
1129         /* we will also update inode accounting ZAPs */
1130         dmu_tx_hold_bonus(oh->ot_tx, osd->od_iusr_oid);
1131         dmu_tx_hold_zap(oh->ot_tx, osd->od_iusr_oid, TRUE, buf);
1132         dmu_tx_hold_bonus(oh->ot_tx, osd->od_igrp_oid);
1133         dmu_tx_hold_zap(oh->ot_tx, osd->od_igrp_oid, TRUE, buf);
1134
1135         dmu_tx_hold_sa_create(oh->ot_tx, ZFS_SA_BASE_ATTR_SIZE);
1136
1137         __osd_xattr_declare_set(env, obj, sizeof(struct lustre_mdt_attrs),
1138                                 XATTR_NAME_LMA, oh);
1139
1140         rc = osd_declare_quota(env, osd, attr->la_uid, attr->la_gid, 1, oh,
1141                                false, NULL, false);
1142         RETURN(rc);
1143 }
1144
1145 int __osd_attr_init(const struct lu_env *env, udmu_objset_t *uos, uint64_t oid,
1146                     dmu_tx_t *tx, struct lu_attr *la, uint64_t parent)
1147 {
1148         sa_bulk_attr_t  *bulk;
1149         sa_handle_t     *sa_hdl;
1150         struct osa_attr *osa = &osd_oti_get(env)->oti_osa;
1151         uint64_t         gen;
1152         uint64_t         crtime[2];
1153         timestruc_t      now;
1154         int              cnt;
1155         int              rc;
1156
1157         gethrestime(&now);
1158         gen = dmu_tx_get_txg(tx);
1159
1160         ZFS_TIME_ENCODE(&now, crtime);
1161
1162         osa->atime[0] = la->la_atime;
1163         osa->ctime[0] = la->la_ctime;
1164         osa->mtime[0] = la->la_mtime;
1165         osa->mode = la->la_mode;
1166         osa->uid = la->la_uid;
1167         osa->gid = la->la_gid;
1168         osa->rdev = la->la_rdev;
1169         osa->nlink = la->la_nlink;
1170         osa->flags = attrs_fs2zfs(la->la_flags);
1171         osa->size  = la->la_size;
1172
1173         /* Now add in all of the "SA" attributes */
1174         rc = -sa_handle_get(uos->os, oid, NULL, SA_HDL_PRIVATE, &sa_hdl);
1175         if (rc)
1176                 return rc;
1177
1178         OBD_ALLOC(bulk, sizeof(sa_bulk_attr_t) * 13);
1179         if (bulk == NULL) {
1180                 rc = -ENOMEM;
1181                 goto out;
1182         }
1183         /*
1184          * we need to create all SA below upon object create.
1185          *
1186          * XXX The attribute order matters since the accounting callback relies
1187          * on static offsets (i.e. SA_*_OFFSET, see zfs_space_delta_cb()) to
1188          * look up the UID/GID attributes. Moreover, the callback does not seem
1189          * to support the spill block.
1190          * We define attributes in the same order as SA_*_OFFSET in order to
1191          * work around the problem. See ORI-610.
1192          */
1193         cnt = 0;
1194         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(uos), NULL, &osa->mode, 8);
1195         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(uos), NULL, &osa->size, 8);
1196         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GEN(uos), NULL, &gen, 8);
1197         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(uos), NULL, &osa->uid, 8);
1198         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(uos), NULL, &osa->gid, 8);
1199         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_PARENT(uos), NULL, &parent, 8);
1200         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(uos), NULL, &osa->flags, 8);
1201         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(uos), NULL, osa->atime, 16);
1202         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(uos), NULL, osa->mtime, 16);
1203         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(uos), NULL, osa->ctime, 16);
1204         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CRTIME(uos), NULL, crtime, 16);
1205         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(uos), NULL, &osa->nlink, 8);
1206         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_RDEV(uos), NULL, &osa->rdev, 8);
1207
1208         rc = -sa_replace_all_by_template(sa_hdl, bulk, cnt, tx);
1209
1210         OBD_FREE(bulk, sizeof(sa_bulk_attr_t) * 13);
1211 out:
1212         sa_handle_destroy(sa_hdl);
1213         return rc;
1214 }
1215
1216 /*
1217  * The transaction passed to this routine must have
1218  * dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT) called and then assigned
1219  * to a transaction group.
1220  */
1221 int __osd_object_create(const struct lu_env *env, udmu_objset_t *uos,
1222                         dmu_buf_t **dbp, dmu_tx_t *tx, struct lu_attr *la,
1223                         uint64_t parent, void *tag)
1224 {
1225         uint64_t oid;
1226         int      rc;
1227
1228         LASSERT(tag);
1229         spin_lock(&uos->lock);
1230         uos->objects++;
1231         spin_unlock(&uos->lock);
1232
1233         /* Assert that the transaction has been assigned to a
1234            transaction group. */
1235         LASSERT(tx->tx_txg != 0);
1236
1237         /* Create a new DMU object. */
1238         oid = dmu_object_alloc(uos->os, DMU_OT_PLAIN_FILE_CONTENTS, 0,
1239                                DMU_OT_SA, DN_MAX_BONUSLEN, tx);
1240         rc = -sa_buf_hold(uos->os, oid, tag, dbp);
1241         if (rc)
1242                 return rc;
1243
1244         LASSERT(la->la_valid & LA_MODE);
1245         la->la_size = 0;
1246         la->la_nlink = 1;
1247
1248         return __osd_attr_init(env, uos, oid, tx, la, parent);
1249 }
1250
1251 /*
1252  * The transaction passed to this routine must have
1253  * dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, ...) called and then assigned
1254  * to a transaction group.
1255  *
1256  * Using ZAP_FLAG_HASH64 will force the ZAP to always be a FAT ZAP.
1257  * This is fine for directories today, because storing the FID in the dirent
1258  * will also require a FAT ZAP.  If there is a new type of micro ZAP created
1259  * then we might need to re-evaluate the use of this flag and instead do
1260  * a conversion from the different internal ZAP hash formats being used. */
1261 int __osd_zap_create(const struct lu_env *env, udmu_objset_t *uos,
1262                      dmu_buf_t **zap_dbp, dmu_tx_t *tx,
1263                      struct lu_attr *la, uint64_t parent,
1264                      void *tag, zap_flags_t flags)
1265 {
1266         uint64_t oid;
1267         int      rc;
1268
1269         LASSERT(tag);
1270
1271         spin_lock(&uos->lock);
1272         uos->objects++;
1273         spin_unlock(&uos->lock);
1274
1275         /* Assert that the transaction has been assigned to a
1276            transaction group. */
1277         LASSERT(tx->tx_txg != 0);
1278
1279         oid = zap_create_flags(uos->os, 0, flags | ZAP_FLAG_HASH64,
1280                                DMU_OT_DIRECTORY_CONTENTS, 12, 12,
1281                                DMU_OT_SA, DN_MAX_BONUSLEN, tx);
1282
1283         rc = -sa_buf_hold(uos->os, oid, tag, zap_dbp);
1284         if (rc)
1285                 return rc;
1286
1287         LASSERT(la->la_valid & LA_MODE);
1288         la->la_size = 2;
1289         la->la_nlink = 1;
1290
1291         return __osd_attr_init(env, uos, oid, tx, la, parent);
1292 }
1293
1294 static dmu_buf_t *osd_mkidx(const struct lu_env *env, struct osd_device *osd,
1295                             struct lu_attr *la, uint64_t parent,
1296                             struct osd_thandle *oh)
1297 {
1298         dmu_buf_t *db;
1299         int        rc;
1300
1301         /* Index file should be created as regular file in order not to confuse
1302          * ZPL which could interpret them as directory.
1303          * We set ZAP_FLAG_UINT64_KEY to let ZFS know than we are going to use
1304          * binary keys */
1305         LASSERT(S_ISREG(la->la_mode));
1306         rc = __osd_zap_create(env, &osd->od_objset, &db, oh->ot_tx, la,
1307                               parent, osd_obj_tag, ZAP_FLAG_UINT64_KEY);
1308         if (rc)
1309                 return ERR_PTR(rc);
1310         return db;
1311 }
1312
1313 static dmu_buf_t *osd_mkdir(const struct lu_env *env, struct osd_device *osd,
1314                             struct lu_attr *la, uint64_t parent,
1315                             struct osd_thandle *oh)
1316 {
1317         dmu_buf_t *db;
1318         int        rc;
1319
1320         LASSERT(S_ISDIR(la->la_mode));
1321         rc = __osd_zap_create(env, &osd->od_objset, &db, oh->ot_tx, la,
1322                               parent, osd_obj_tag, 0);
1323         if (rc)
1324                 return ERR_PTR(rc);
1325         return db;
1326 }
1327
1328 static dmu_buf_t* osd_mkreg(const struct lu_env *env, struct osd_device *osd,
1329                             struct lu_attr *la, uint64_t parent,
1330                             struct osd_thandle *oh)
1331 {
1332         dmu_buf_t *db;
1333         int         rc;
1334
1335         LASSERT(S_ISREG(la->la_mode));
1336         rc = __osd_object_create(env, &osd->od_objset, &db, oh->ot_tx, la,
1337                                  parent, osd_obj_tag);
1338         if (rc)
1339                 return ERR_PTR(rc);
1340
1341         /*
1342          * XXX: a hack, OST to use bigger blocksize. we need
1343          * a method in OSD API to control this from OFD/MDD
1344          */
1345         if (!lu_device_is_md(osd2lu_dev(osd))) {
1346                 rc = -dmu_object_set_blocksize(osd->od_objset.os,
1347                                                db->db_object,
1348                                 128 << 10, 0, oh->ot_tx);
1349                 if (unlikely(rc)) {
1350                         CERROR("%s: can't change blocksize: %d\n",
1351                                osd->od_svname, rc);
1352                         return ERR_PTR(rc);
1353                 }
1354         }
1355
1356         return db;
1357 }
1358
1359 static dmu_buf_t *osd_mksym(const struct lu_env *env, struct osd_device *osd,
1360                             struct lu_attr *la, uint64_t parent,
1361                             struct osd_thandle *oh)
1362 {
1363         dmu_buf_t *db;
1364         int        rc;
1365
1366         LASSERT(S_ISLNK(la->la_mode));
1367         rc = __osd_object_create(env, &osd->od_objset, &db, oh->ot_tx, la,
1368                                  parent, osd_obj_tag);
1369         if (rc)
1370                 return ERR_PTR(rc);
1371         return db;
1372 }
1373
1374 static dmu_buf_t *osd_mknod(const struct lu_env *env, struct osd_device *osd,
1375                             struct lu_attr *la, uint64_t parent,
1376                             struct osd_thandle *oh)
1377 {
1378         dmu_buf_t *db;
1379         int        rc;
1380
1381         la->la_valid = LA_MODE;
1382         if (S_ISCHR(la->la_mode) || S_ISBLK(la->la_mode))
1383                 la->la_valid |= LA_RDEV;
1384
1385         rc = __osd_object_create(env, &osd->od_objset, &db, oh->ot_tx, la,
1386                                  parent, osd_obj_tag);
1387         if (rc)
1388                 return ERR_PTR(rc);
1389         return db;
1390 }
1391
1392 typedef dmu_buf_t *(*osd_obj_type_f)(const struct lu_env *env,
1393                                      struct osd_device *osd,
1394                                      struct lu_attr *la,
1395                                      uint64_t parent,
1396                                      struct osd_thandle *oh);
1397
1398 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
1399 {
1400         osd_obj_type_f result;
1401
1402         switch (type) {
1403         case DFT_DIR:
1404                 result = osd_mkdir;
1405                 break;
1406         case DFT_INDEX:
1407                 result = osd_mkidx;
1408                 break;
1409         case DFT_REGULAR:
1410                 result = osd_mkreg;
1411                 break;
1412         case DFT_SYM:
1413                 result = osd_mksym;
1414                 break;
1415         case DFT_NODE:
1416                 result = osd_mknod;
1417                 break;
1418         default:
1419                 LBUG();
1420                 break;
1421         }
1422         return result;
1423 }
1424
1425 /*
1426  * Primitives for directory (i.e. ZAP) handling
1427  */
1428 static inline int osd_init_lma(const struct lu_env *env, struct osd_object *obj,
1429                                const struct lu_fid *fid, struct osd_thandle *oh)
1430 {
1431         struct osd_thread_info  *info = osd_oti_get(env);
1432         struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
1433         struct lu_buf            buf;
1434         int rc;
1435
1436         lustre_lma_init(lma, fid, 0, 0);
1437         lustre_lma_swab(lma);
1438         buf.lb_buf = lma;
1439         buf.lb_len = sizeof(*lma);
1440
1441         rc = osd_xattr_set_internal(env, obj, &buf, XATTR_NAME_LMA,
1442                                     LU_XATTR_CREATE, oh, BYPASS_CAPA);
1443
1444         return rc;
1445 }
1446
1447 /*
1448  * Concurrency: @dt is write locked.
1449  */
1450 static int osd_object_create(const struct lu_env *env, struct dt_object *dt,
1451                              struct lu_attr *attr,
1452                              struct dt_allocation_hint *hint,
1453                              struct dt_object_format *dof,
1454                              struct thandle *th)
1455 {
1456         struct zpl_direntry     *zde = &osd_oti_get(env)->oti_zde.lzd_reg;
1457         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
1458         struct osd_object       *obj = osd_dt_obj(dt);
1459         struct osd_device       *osd = osd_obj2dev(obj);
1460         char                    *buf = osd_oti_get(env)->oti_str;
1461         struct osd_thandle      *oh;
1462         dmu_buf_t               *db;
1463         uint64_t                 zapid;
1464         int                      rc;
1465
1466         ENTRY;
1467
1468         /* concurrent create declarations should not see
1469          * the object inconsistent (db, attr, etc).
1470          * in regular cases acquisition should be cheap */
1471         down(&obj->oo_guard);
1472
1473         LASSERT(osd_invariant(obj));
1474         LASSERT(!dt_object_exists(dt));
1475         LASSERT(dof != NULL);
1476
1477         LASSERT(th != NULL);
1478         oh = container_of0(th, struct osd_thandle, ot_super);
1479
1480         /*
1481          * XXX missing: Quote handling.
1482          */
1483
1484         LASSERT(obj->oo_db == NULL);
1485
1486         /* to follow ZFS on-disk format we need
1487          * to initialize parent dnode properly */
1488         zapid = 0;
1489         if (hint && hint->dah_parent)
1490                 zapid = osd_dt_obj(hint->dah_parent)->oo_db->db_object;
1491
1492         db = osd_create_type_f(dof->dof_type)(env, osd, attr, zapid, oh);
1493         if (IS_ERR(db))
1494                 GOTO(out, rc = PTR_ERR(db));
1495
1496         zde->zde_pad = 0;
1497         zde->zde_dnode = db->db_object;
1498         zde->zde_type = IFTODT(attr->la_mode & S_IFMT);
1499
1500         zapid = osd_get_name_n_idx(env, osd, fid, buf);
1501
1502         rc = -zap_add(osd->od_objset.os, zapid, buf, 8, 1, zde, oh->ot_tx);
1503         if (rc)
1504                 GOTO(out, rc);
1505
1506         /* Add new object to inode accounting.
1507          * Errors are not considered as fatal */
1508         rc = -zap_increment_int(osd->od_objset.os, osd->od_iusr_oid,
1509                                 (attr->la_valid & LA_UID) ? attr->la_uid : 0, 1,
1510                                 oh->ot_tx);
1511         if (rc)
1512                 CERROR("%s: failed to add "DFID" to accounting ZAP for usr %d "
1513                         "(%d)\n", osd->od_svname, PFID(fid), attr->la_uid, rc);
1514         rc = -zap_increment_int(osd->od_objset.os, osd->od_igrp_oid,
1515                                 (attr->la_valid & LA_GID) ? attr->la_gid : 0, 1,
1516                                 oh->ot_tx);
1517         if (rc)
1518                 CERROR("%s: failed to add "DFID" to accounting ZAP for grp %d "
1519                         "(%d)\n", osd->od_svname, PFID(fid), attr->la_gid, rc);
1520
1521         /* configure new osd object */
1522         obj->oo_db = db;
1523         rc = osd_object_init0(env, obj);
1524         LASSERT(ergo(rc == 0, dt_object_exists(dt)));
1525         LASSERT(osd_invariant(obj));
1526
1527         rc = osd_init_lma(env, obj, fid, oh);
1528         if (rc) {
1529                 CERROR("%s: can not set LMA on "DFID": rc = %d\n",
1530                        osd->od_svname, PFID(fid), rc);
1531                 /* ignore errors during LMA initialization */
1532                 rc = 0;
1533         }
1534
1535 out:
1536         up(&obj->oo_guard);
1537         RETURN(rc);
1538 }
1539
1540 static int osd_declare_object_ref_add(const struct lu_env *env,
1541                                       struct dt_object *dt,
1542                                       struct thandle *th)
1543 {
1544         return osd_declare_attr_set(env, dt, NULL, th);
1545 }
1546
1547 /*
1548  * Concurrency: @dt is write locked.
1549  */
1550 static int osd_object_ref_add(const struct lu_env *env,
1551                               struct dt_object *dt,
1552                               struct thandle *handle)
1553 {
1554         struct osd_object       *obj = osd_dt_obj(dt);
1555         struct osd_thandle      *oh;
1556         struct osd_device       *osd = osd_obj2dev(obj);
1557         udmu_objset_t           *uos = &osd->od_objset;
1558         uint64_t                 nlink;
1559         int rc;
1560
1561         ENTRY;
1562
1563         LASSERT(osd_invariant(obj));
1564         LASSERT(dt_object_exists(dt));
1565         LASSERT(obj->oo_sa_hdl != NULL);
1566
1567         oh = container_of0(handle, struct osd_thandle, ot_super);
1568
1569         write_lock(&obj->oo_attr_lock);
1570         nlink = ++obj->oo_attr.la_nlink;
1571         write_unlock(&obj->oo_attr_lock);
1572
1573         rc = osd_object_sa_update(obj, SA_ZPL_LINKS(uos), &nlink, 8, oh);
1574         return rc;
1575 }
1576
1577 static int osd_declare_object_ref_del(const struct lu_env *env,
1578                                       struct dt_object *dt,
1579                                       struct thandle *handle)
1580 {
1581         return osd_declare_attr_set(env, dt, NULL, handle);
1582 }
1583
1584 /*
1585  * Concurrency: @dt is write locked.
1586  */
1587 static int osd_object_ref_del(const struct lu_env *env,
1588                               struct dt_object *dt,
1589                               struct thandle *handle)
1590 {
1591         struct osd_object       *obj = osd_dt_obj(dt);
1592         struct osd_thandle      *oh;
1593         struct osd_device       *osd = osd_obj2dev(obj);
1594         udmu_objset_t           *uos = &osd->od_objset;
1595         uint64_t                 nlink;
1596         int                      rc;
1597
1598         ENTRY;
1599
1600         LASSERT(osd_invariant(obj));
1601         LASSERT(dt_object_exists(dt));
1602         LASSERT(obj->oo_sa_hdl != NULL);
1603
1604         oh = container_of0(handle, struct osd_thandle, ot_super);
1605         LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
1606
1607         write_lock(&obj->oo_attr_lock);
1608         nlink = --obj->oo_attr.la_nlink;
1609         write_unlock(&obj->oo_attr_lock);
1610
1611         rc = osd_object_sa_update(obj, SA_ZPL_LINKS(uos), &nlink, 8, oh);
1612         return rc;
1613 }
1614
1615 static int capa_is_sane(const struct lu_env *env, struct osd_device *dev,
1616                         struct lustre_capa *capa, struct lustre_capa_key *keys)
1617 {
1618         struct osd_thread_info  *oti = osd_oti_get(env);
1619         struct obd_capa         *oc;
1620         int                      i, rc = 0;
1621         ENTRY;
1622
1623         oc = capa_lookup(dev->od_capa_hash, capa, 0);
1624         if (oc) {
1625                 if (capa_is_expired(oc)) {
1626                         DEBUG_CAPA(D_ERROR, capa, "expired");
1627                         rc = -ESTALE;
1628                 }
1629                 capa_put(oc);
1630                 RETURN(rc);
1631         }
1632
1633         spin_lock(&capa_lock);
1634         for (i = 0; i < 2; i++) {
1635                 if (keys[i].lk_keyid == capa->lc_keyid) {
1636                         oti->oti_capa_key = keys[i];
1637                         break;
1638                 }
1639         }
1640         spin_unlock(&capa_lock);
1641
1642         if (i == 2) {
1643                 DEBUG_CAPA(D_ERROR, capa, "no matched capa key");
1644                 RETURN(-ESTALE);
1645         }
1646
1647         rc = capa_hmac(oti->oti_capa.lc_hmac, capa, oti->oti_capa_key.lk_key);
1648         if (rc)
1649                 RETURN(rc);
1650         if (memcmp(oti->oti_capa.lc_hmac, capa->lc_hmac, sizeof(capa->lc_hmac)))
1651         {
1652                 DEBUG_CAPA(D_ERROR, capa, "HMAC mismatch");
1653                 RETURN(-EACCES);
1654         }
1655
1656         oc = capa_add(dev->od_capa_hash, capa);
1657         capa_put(oc);
1658
1659         RETURN(0);
1660 }
1661
1662 static int osd_object_auth(const struct lu_env *env, struct dt_object *dt,
1663                            struct lustre_capa *capa, __u64 opc)
1664 {
1665         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
1666         struct osd_device       *dev = osd_dev(dt->do_lu.lo_dev);
1667         int                      rc;
1668
1669         if (!dev->od_fl_capa)
1670                 return 0;
1671
1672         if (capa == BYPASS_CAPA)
1673                 return 0;
1674
1675         if (!capa) {
1676                 CERROR("no capability is provided for fid "DFID"\n", PFID(fid));
1677                 return -EACCES;
1678         }
1679
1680         if (!lu_fid_eq(fid, &capa->lc_fid)) {
1681                 DEBUG_CAPA(D_ERROR, capa, "fid "DFID" mismatch with",PFID(fid));
1682                 return -EACCES;
1683         }
1684
1685         if (!capa_opc_supported(capa, opc)) {
1686                 DEBUG_CAPA(D_ERROR, capa, "opc "LPX64" not supported by", opc);
1687                 return -EACCES;
1688         }
1689
1690         if ((rc = capa_is_sane(env, dev, capa, dev->od_capa_keys))) {
1691                 DEBUG_CAPA(D_ERROR, capa, "insane (rc %d)", rc);
1692                 return -EACCES;
1693         }
1694
1695         return 0;
1696 }
1697
1698 static struct obd_capa *osd_capa_get(const struct lu_env *env,
1699                                      struct dt_object *dt,
1700                                      struct lustre_capa *old,
1701                                      __u64 opc)
1702 {
1703         struct osd_thread_info  *info = osd_oti_get(env);
1704         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
1705         struct osd_object       *obj = osd_dt_obj(dt);
1706         struct osd_device       *dev = osd_obj2dev(obj);
1707         struct lustre_capa_key  *key = &info->oti_capa_key;
1708         struct lustre_capa      *capa = &info->oti_capa;
1709         struct obd_capa         *oc;
1710         int                      rc;
1711         ENTRY;
1712
1713         if (!dev->od_fl_capa)
1714                 RETURN(ERR_PTR(-ENOENT));
1715
1716         LASSERT(dt_object_exists(dt));
1717         LASSERT(osd_invariant(obj));
1718
1719         /* renewal sanity check */
1720         if (old && osd_object_auth(env, dt, old, opc))
1721                 RETURN(ERR_PTR(-EACCES));
1722
1723         capa->lc_fid = *fid;
1724         capa->lc_opc = opc;
1725         capa->lc_uid = 0;
1726         capa->lc_flags = dev->od_capa_alg << 24;
1727         capa->lc_timeout = dev->od_capa_timeout;
1728         capa->lc_expiry = 0;
1729
1730         oc = capa_lookup(dev->od_capa_hash, capa, 1);
1731         if (oc) {
1732                 LASSERT(!capa_is_expired(oc));
1733                 RETURN(oc);
1734         }
1735
1736         spin_lock(&capa_lock);
1737         *key = dev->od_capa_keys[1];
1738         spin_unlock(&capa_lock);
1739
1740         capa->lc_keyid = key->lk_keyid;
1741         capa->lc_expiry = cfs_time_current_sec() + dev->od_capa_timeout;
1742
1743         rc = capa_hmac(capa->lc_hmac, capa, key->lk_key);
1744         if (rc) {
1745                 DEBUG_CAPA(D_ERROR, capa, "HMAC failed: %d for", rc);
1746                 LBUG();
1747                 RETURN(ERR_PTR(rc));
1748         }
1749
1750         oc = capa_add(dev->od_capa_hash, capa);
1751         RETURN(oc);
1752 }
1753
1754 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt,
1755                            __u64 start, __u64 end)
1756 {
1757         struct osd_device *osd = osd_obj2dev(osd_dt_obj(dt));
1758         ENTRY;
1759
1760         /* XXX: no other option than syncing the whole filesystem until we
1761          * support ZIL.  If the object tracked the txg that it was last
1762          * modified in, it could pass that txg here instead of "0".  Maybe
1763          * the changes are already committed, so no wait is needed at all? */
1764         txg_wait_synced(dmu_objset_pool(osd->od_objset.os), 0ULL);
1765
1766         RETURN(0);
1767 }
1768
1769 static struct dt_object_operations osd_obj_ops = {
1770         .do_read_lock           = osd_object_read_lock,
1771         .do_write_lock          = osd_object_write_lock,
1772         .do_read_unlock         = osd_object_read_unlock,
1773         .do_write_unlock        = osd_object_write_unlock,
1774         .do_write_locked        = osd_object_write_locked,
1775         .do_attr_get            = osd_attr_get,
1776         .do_declare_attr_set    = osd_declare_attr_set,
1777         .do_attr_set            = osd_attr_set,
1778         .do_ah_init             = osd_ah_init,
1779         .do_declare_create      = osd_declare_object_create,
1780         .do_create              = osd_object_create,
1781         .do_declare_destroy     = osd_declare_object_destroy,
1782         .do_destroy             = osd_object_destroy,
1783         .do_index_try           = osd_index_try,
1784         .do_declare_ref_add     = osd_declare_object_ref_add,
1785         .do_ref_add             = osd_object_ref_add,
1786         .do_declare_ref_del     = osd_declare_object_ref_del,
1787         .do_ref_del             = osd_object_ref_del,
1788         .do_xattr_get           = osd_xattr_get,
1789         .do_declare_xattr_set   = osd_declare_xattr_set,
1790         .do_xattr_set           = osd_xattr_set,
1791         .do_declare_xattr_del   = osd_declare_xattr_del,
1792         .do_xattr_del           = osd_xattr_del,
1793         .do_xattr_list          = osd_xattr_list,
1794         .do_capa_get            = osd_capa_get,
1795         .do_object_sync         = osd_object_sync,
1796 };
1797
1798 static struct lu_object_operations osd_lu_obj_ops = {
1799         .loo_object_init        = osd_object_init,
1800         .loo_object_delete      = osd_object_delete,
1801         .loo_object_release     = osd_object_release,
1802         .loo_object_free        = osd_object_free,
1803         .loo_object_print       = osd_object_print,
1804         .loo_object_invariant   = osd_object_invariant,
1805 };
1806
1807 static int osd_otable_it_attr_get(const struct lu_env *env,
1808                                 struct dt_object *dt,
1809                                 struct lu_attr *attr,
1810                                 struct lustre_capa *capa)
1811 {
1812         attr->la_valid = 0;
1813         return 0;
1814 }
1815
1816 static struct dt_object_operations osd_obj_otable_it_ops = {
1817         .do_attr_get    = osd_otable_it_attr_get,
1818         .do_index_try   = osd_index_try,
1819 };
1820