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.gnu.org/licenses/gpl-2.0.html
  19  *
  20  * GPL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Use is subject to license terms.
  25  *
  26  * Copyright (c) 2012, 2016, Intel Corporation.
  27  */
  28 /*
  29  * This file is part of Lustre, http://www.lustre.org/
  30  * Lustre is a trademark of Sun Microsystems, Inc.
  31  *
  32  * lustre/osd-zfs/osd_object.c
  33  *
  34  * Author: Alex Zhuravlev <bzzz@whamcloud.com>
  35  * Author: Mike Pershin <tappro@whamcloud.com>
  36  * Author: Johann Lombardi <johann@whamcloud.com>
  37  */
  38
  39 #define DEBUG_SUBSYSTEM S_OSD
  40
  41 #include <lustre_ver.h>
  42 #include <libcfs/libcfs.h>
  43 #include <obd_support.h>
  44 #include <lustre_net.h>
  45 #include <obd.h>
  46 #include <obd_class.h>
  47 #include <lustre_disk.h>
  48 #include <lustre_fid.h>
  49
  50 #include "osd_internal.h"
  51
  52 #include <sys/dnode.h>
  53 #include <sys/dbuf.h>
  54 #include <sys/spa.h>
  55 #include <sys/stat.h>
  56 #include <sys/zap.h>
  57 #include <sys/spa_impl.h>
  58 #include <sys/zfs_znode.h>
  59 #include <sys/dmu_tx.h>
  60 #include <sys/dmu_objset.h>
  61 #include <sys/dsl_prop.h>
  62 #include <sys/sa_impl.h>
  63 #include <sys/txg.h>
  64
  65 char *osd_obj_tag = "osd_object";
  66
  67 static struct dt_object_operations osd_obj_ops;
  68 static struct lu_object_operations osd_lu_obj_ops;
  69 extern struct dt_body_operations osd_body_ops;
  70 static struct dt_object_operations osd_obj_otable_it_ops;
  71
  72 extern struct kmem_cache *osd_object_kmem;
  73
  74 static void
  75 osd_object_sa_fini(struct osd_object *obj)
  76 {
  77         if (obj->oo_sa_hdl) {
  78                 sa_handle_destroy(obj->oo_sa_hdl);
  79                 obj->oo_sa_hdl = NULL;
  80         }
  81 }
  82
  83 static int
  84 osd_object_sa_init(struct osd_object *obj, struct osd_device *o)
  85 {
  86         int rc;
  87
  88         LASSERT(obj->oo_sa_hdl == NULL);
  89         LASSERT(obj->oo_dn != NULL);
  90
  91         rc = osd_sa_handle_get(obj);
  92         if (rc)
  93                 return rc;
  94
  95         /* Cache the xattr object id, valid for the life of the object */
  96         rc = -sa_lookup(obj->oo_sa_hdl, SA_ZPL_XATTR(o), &obj->oo_xattr, 8);
  97         if (rc == -ENOENT) {
  98                 obj->oo_xattr = ZFS_NO_OBJECT;
  99                 rc = 0;
 100         } else if (rc) {
 101                 osd_object_sa_fini(obj);
 102         }
 103
 104         return rc;
 105 }
 106
 107 /*
 108  * Add object to list of dirty objects in tx handle.
 109  */
 110 void osd_object_sa_dirty_add(struct osd_object *obj, struct osd_thandle *oh)
 111 {
 112         if (!list_empty(&obj->oo_sa_linkage))
 113                 return;
 114
 115         write_lock(&obj->oo_attr_lock);
 116         if (likely(list_empty(&obj->oo_sa_linkage)))
 117                 list_add(&obj->oo_sa_linkage, &oh->ot_sa_list);
 118         write_unlock(&obj->oo_attr_lock);
 119 }
 120
 121 /*
 122  * Release spill block dbuf hold for all dirty SAs.
 123  */
 124 void osd_object_sa_dirty_rele(const struct lu_env *env, struct osd_thandle *oh)
 125 {
 126         struct osd_object *obj;
 127
 128         while (!list_empty(&oh->ot_sa_list)) {
 129                 obj = list_entry(oh->ot_sa_list.next,
 130                                  struct osd_object, oo_sa_linkage);
 131                 write_lock(&obj->oo_attr_lock);
 132                 list_del_init(&obj->oo_sa_linkage);
 133                 write_unlock(&obj->oo_attr_lock);
 134                 if (obj->oo_late_xattr) {
 135                         /*
 136                          * take oo_guard to protect oo_sa_xattr buffer
 137                          * from concurrent update by osd_xattr_set()
 138                          */
 139                         LASSERT(oh->ot_assigned != 0);
 140                         down_write(&obj->oo_guard);
 141                         if (obj->oo_late_attr_set)
 142                                 __osd_sa_attr_init(env, obj, oh);
 143                         else if (obj->oo_late_xattr)
 144                                 __osd_sa_xattr_update(env, obj, oh);
 145                         up_write(&obj->oo_guard);
 146                 }
 147                 sa_spill_rele(obj->oo_sa_hdl);
 148         }
 149 }
 150
 151 /*
 152  * Update the SA and add the object to the dirty list.
 153  */
 154 int osd_object_sa_update(struct osd_object *obj, sa_attr_type_t type,
 155                          void *buf, uint32_t buflen, struct osd_thandle *oh)
 156 {
 157         int rc;
 158
 159         LASSERT(obj->oo_sa_hdl != NULL);
 160         LASSERT(oh->ot_tx != NULL);
 161
 162         rc = -sa_update(obj->oo_sa_hdl, type, buf, buflen, oh->ot_tx);
 163         osd_object_sa_dirty_add(obj, oh);
 164
 165         return rc;
 166 }
 167
 168 /*
 169  * Bulk update the SA and add the object to the dirty list.
 170  */
 171 static int
 172 osd_object_sa_bulk_update(struct osd_object *obj, sa_bulk_attr_t *attrs,
 173                           int count, struct osd_thandle *oh)
 174 {
 175         int rc;
 176
 177         LASSERT(obj->oo_sa_hdl != NULL);
 178         LASSERT(oh->ot_tx != NULL);
 179
 180         rc = -sa_bulk_update(obj->oo_sa_hdl, attrs, count, oh->ot_tx);
 181         osd_object_sa_dirty_add(obj, oh);
 182
 183         return rc;
 184 }
 185
 186 /*
 187  * Retrieve the attributes of a DMU object
 188  */
 189 int __osd_object_attr_get(const struct lu_env *env, struct osd_device *o,
 190                           struct osd_object *obj, struct lu_attr *la)
 191 {
 192         struct osa_attr *osa = &osd_oti_get(env)->oti_osa;
 193         sa_bulk_attr_t  *bulk = osd_oti_get(env)->oti_attr_bulk;
 194         int              cnt = 0;
 195         int              rc;
 196         ENTRY;
 197
 198         LASSERT(obj->oo_dn != NULL);
 199
 200         la->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE | LA_TYPE |
 201                         LA_SIZE | LA_UID | LA_GID | LA_FLAGS | LA_NLINK;
 202
 203         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(o), NULL, osa->atime, 16);
 204         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(o), NULL, osa->mtime, 16);
 205         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(o), NULL, osa->ctime, 16);
 206         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(o), NULL, &osa->mode, 8);
 207         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(o), NULL, &osa->size, 8);
 208         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(o), NULL, &osa->nlink, 8);
 209         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(o), NULL, &osa->uid, 8);
 210         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(o), NULL, &osa->gid, 8);
 211         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(o), NULL, &osa->flags, 8);
 212         LASSERT(cnt <= ARRAY_SIZE(osd_oti_get(env)->oti_attr_bulk));
 213
 214         rc = -sa_bulk_lookup(obj->oo_sa_hdl, bulk, cnt);
 215         if (rc)
 216                 GOTO(out_sa, rc);
 217
 218         la->la_atime = osa->atime[0];
 219         la->la_mtime = osa->mtime[0];
 220         la->la_ctime = osa->ctime[0];
 221         la->la_mode = osa->mode;
 222         la->la_uid = osa->uid;
 223         la->la_gid = osa->gid;
 224         la->la_nlink = osa->nlink;
 225         la->la_flags = attrs_zfs2fs(osa->flags);
 226         la->la_size = osa->size;
 227
 228         /* Try to get extra flag from LMA. Right now, only LMAI_ORPHAN
 229          * flags is stored in LMA, and it is only for orphan directory */
 230         if (S_ISDIR(la->la_mode) && dt_object_exists(&obj->oo_dt)) {
 231                 struct osd_thread_info *info = osd_oti_get(env);
 232                 struct lustre_mdt_attrs *lma;
 233                 struct lu_buf buf;
 234
 235                 lma = (struct lustre_mdt_attrs *)info->oti_buf;
 236                 buf.lb_buf = lma;
 237                 buf.lb_len = sizeof(info->oti_buf);
 238                 rc = osd_xattr_get(env, &obj->oo_dt, &buf, XATTR_NAME_LMA);
 239                 if (rc > 0) {
 240                         rc = 0;
 241                         lma->lma_incompat = le32_to_cpu(lma->lma_incompat);
 242                         obj->oo_lma_flags =
 243                                 lma_to_lustre_flags(lma->lma_incompat);
 244
 245                 } else if (rc == -ENODATA) {
 246                         rc = 0;
 247                 }
 248         }
 249
 250         if (S_ISCHR(la->la_mode) || S_ISBLK(la->la_mode)) {
 251                 rc = -sa_lookup(obj->oo_sa_hdl, SA_ZPL_RDEV(o), &osa->rdev, 8);
 252                 if (rc)
 253                         GOTO(out_sa, rc);
 254                 la->la_rdev = osa->rdev;
 255                 la->la_valid |= LA_RDEV;
 256         }
 257 out_sa:
 258
 259         RETURN(rc);
 260 }
 261
 262 int __osd_obj2dnode(objset_t *os, uint64_t oid, dnode_t **dnp)
 263 {
 264         dmu_buf_t *db;
 265         dmu_buf_impl_t *dbi;
 266         int rc;
 267
 268         rc = -dmu_bonus_hold(os, oid, osd_obj_tag, &db);
 269         if (rc)
 270                 return rc;
 271
 272         dbi = (dmu_buf_impl_t *)db;
 273         DB_DNODE_ENTER(dbi);
 274         *dnp = DB_DNODE(dbi);
 275         LASSERT(*dnp != NULL);
 276
 277         return 0;
 278 }
 279
 280 /*
 281  * Concurrency: no concurrent access is possible that early in object
 282  * life-cycle.
 283  */
 284 struct lu_object *osd_object_alloc(const struct lu_env *env,
 285                                    const struct lu_object_header *hdr,
 286                                    struct lu_device *d)
 287 {
 288         struct osd_object *mo;
 289
 290         OBD_SLAB_ALLOC_PTR_GFP(mo, osd_object_kmem, GFP_NOFS);
 291         if (mo != NULL) {
 292                 struct lu_object *l;
 293
 294                 l = &mo->oo_dt.do_lu;
 295                 dt_object_init(&mo->oo_dt, NULL, d);
 296                 mo->oo_dt.do_ops = &osd_obj_ops;
 297                 l->lo_ops = &osd_lu_obj_ops;
 298                 INIT_LIST_HEAD(&mo->oo_sa_linkage);
 299                 INIT_LIST_HEAD(&mo->oo_unlinked_linkage);
 300                 init_rwsem(&mo->oo_sem);
 301                 init_rwsem(&mo->oo_guard);
 302                 rwlock_init(&mo->oo_attr_lock);
 303                 mo->oo_destroy = OSD_DESTROY_NONE;
 304                 return l;
 305         } else {
 306                 return NULL;
 307         }
 308 }
 309
 310 /*
 311  * Concurrency: shouldn't matter.
 312  */
 313 int osd_object_init0(const struct lu_env *env, struct osd_object *obj)
 314 {
 315         struct osd_device       *osd = osd_obj2dev(obj);
 316         const struct lu_fid     *fid = lu_object_fid(&obj->oo_dt.do_lu);
 317         int                      rc = 0;
 318         ENTRY;
 319
 320         if (obj->oo_dn == NULL)
 321                 RETURN(0);
 322
 323         /* object exist */
 324
 325         rc = osd_object_sa_init(obj, osd);
 326         if (rc)
 327                 RETURN(rc);
 328
 329         /* cache attrs in object */
 330         rc = __osd_object_attr_get(env, osd, obj, &obj->oo_attr);
 331         if (rc)
 332                 RETURN(rc);
 333
 334         if (likely(!fid_is_acct(fid)))
 335                 /* no body operations for accounting objects */
 336                 obj->oo_dt.do_body_ops = &osd_body_ops;
 337
 338         /*
 339          * initialize object before marking it existing
 340          */
 341         obj->oo_dt.do_lu.lo_header->loh_attr |= obj->oo_attr.la_mode & S_IFMT;
 342
 343         smp_mb();
 344         obj->oo_dt.do_lu.lo_header->loh_attr |= LOHA_EXISTS;
 345
 346         RETURN(0);
 347 }
 348
 349 static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
 350 {
 351         struct osd_thread_info  *info = osd_oti_get(env);
 352         struct lu_buf           buf;
 353         int                     rc;
 354         struct lustre_mdt_attrs *lma;
 355         ENTRY;
 356
 357         CLASSERT(sizeof(info->oti_buf) >= sizeof(*lma));
 358         lma = (struct lustre_mdt_attrs *)info->oti_buf;
 359         buf.lb_buf = lma;
 360         buf.lb_len = sizeof(info->oti_buf);
 361
 362         rc = osd_xattr_get(env, &obj->oo_dt, &buf, XATTR_NAME_LMA);
 363         if (rc > 0) {
 364                 rc = 0;
 365                 lustre_lma_swab(lma);
 366                 if (unlikely((lma->lma_incompat & ~LMA_INCOMPAT_SUPP) ||
 367                              CFS_FAIL_CHECK(OBD_FAIL_OSD_LMA_INCOMPAT))) {
 368                         CWARN("%s: unsupported incompat LMA feature(s) %#x for "
 369                               "fid = "DFID"\n", osd_obj2dev(obj)->od_svname,
 370                               lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
 371                               PFID(lu_object_fid(&obj->oo_dt.do_lu)));
 372                         rc = -EOPNOTSUPP;
 373                 }
 374         } else if (rc == -ENODATA) {
 375                 /* haven't initialize LMA xattr */
 376                 rc = 0;
 377         }
 378
 379         RETURN(rc);
 380 }
 381
 382 /**
 383  * Helper function to retrieve DMU object id from fid for accounting object
 384  */
 385 static dnode_t *osd_quota_fid2dmu(const struct osd_device *osd,
 386                                   const struct lu_fid *fid)
 387 {
 388         dnode_t *dn = NULL;
 389
 390         LASSERT(fid_is_acct(fid));
 391
 392         switch (fid_oid(fid)) {
 393         case ACCT_USER_OID:
 394                 dn = osd->od_userused_dn;
 395                 break;
 396         case ACCT_GROUP_OID:
 397                 dn = osd->od_groupused_dn;
 398                 break;
 399         default:
 400                 break;
 401         }
 402
 403         return dn;
 404 }
 405
 406 /*
 407  * Concurrency: no concurrent access is possible that early in object
 408  * life-cycle.
 409  */
 410 static int osd_object_init(const struct lu_env *env, struct lu_object *l,
 411                            const struct lu_object_conf *conf)
 412 {
 413         struct osd_object *obj = osd_obj(l);
 414         struct osd_device *osd = osd_obj2dev(obj);
 415         const struct lu_fid *fid = lu_object_fid(l);
 416         uint64_t oid;
 417         int rc = 0;
 418         ENTRY;
 419
 420         LASSERT(osd_invariant(obj));
 421
 422         if (fid_is_otable_it(&l->lo_header->loh_fid)) {
 423                 obj->oo_dt.do_ops = &osd_obj_otable_it_ops;
 424                 l->lo_header->loh_attr |= LOHA_EXISTS;
 425                 RETURN(0);
 426         }
 427
 428         if (conf != NULL && conf->loc_flags & LOC_F_NEW)
 429                 GOTO(out, rc = 0);
 430
 431         if (unlikely(fid_is_acct(fid))) {
 432                 obj->oo_dn = osd_quota_fid2dmu(osd, fid);
 433                 if (obj->oo_dn) {
 434                         obj->oo_dt.do_index_ops = &osd_acct_index_ops;
 435                         l->lo_header->loh_attr |= LOHA_EXISTS;
 436                 }
 437
 438                 GOTO(out, rc = 0);
 439         }
 440
 441         rc = osd_fid_lookup(env, osd, fid, &oid);
 442         if (rc == 0) {
 443                 LASSERT(obj->oo_dn == NULL);
 444                 rc = __osd_obj2dnode(osd->od_os, oid, &obj->oo_dn);
 445                 /* EEXIST will be returned if object is being deleted in ZFS */
 446                 if (rc == -EEXIST) {
 447                         rc = 0;
 448                         GOTO(out, rc);
 449                 }
 450                 if (rc != 0) {
 451                         CERROR("%s: lookup "DFID"/%#llx failed: rc = %d\n",
 452                                osd->od_svname, PFID(lu_object_fid(l)), oid, rc);
 453                         GOTO(out, rc);
 454                 }
 455                 LASSERT(obj->oo_dn);
 456                 rc = osd_object_init0(env, obj);
 457                 if (rc != 0)
 458                         GOTO(out, rc);
 459
 460                 rc = osd_check_lma(env, obj);
 461                 if (rc != 0)
 462                         GOTO(out, rc);
 463         } else if (rc == -ENOENT) {
 464                 rc = 0;
 465         }
 466         LASSERT(osd_invariant(obj));
 467 out:
 468         RETURN(rc);
 469 }
 470
 471 /*
 472  * Concurrency: no concurrent access is possible that late in object
 473  * life-cycle.
 474  */
 475 static void osd_object_free(const struct lu_env *env, struct lu_object *l)
 476 {
 477         struct osd_object *obj = osd_obj(l);
 478
 479         LASSERT(osd_invariant(obj));
 480
 481         dt_object_fini(&obj->oo_dt);
 482         OBD_SLAB_FREE_PTR(obj, osd_object_kmem);
 483 }
 484
 485 static int
 486 osd_object_unlinked_add(struct osd_object *obj, struct osd_thandle *oh)
 487 {
 488         int rc = -EBUSY;
 489
 490         LASSERT(obj->oo_destroy == OSD_DESTROY_ASYNC);
 491
 492         /* the object is supposed to be exclusively locked by
 493          * the caller (osd_destroy()), while the transaction
 494          * (oh) is per-thread and not shared */
 495         if (likely(list_empty(&obj->oo_unlinked_linkage))) {
 496                 list_add(&obj->oo_unlinked_linkage, &oh->ot_unlinked_list);
 497                 rc = 0;
 498         }
 499
 500         return rc;
 501 }
 502
 503 /* Default to max data size covered by a level-1 indirect block */
 504 static unsigned long osd_sync_destroy_max_size =
 505         1UL << (DN_MAX_INDBLKSHIFT - SPA_BLKPTRSHIFT + SPA_MAXBLOCKSHIFT);
 506 module_param(osd_sync_destroy_max_size, ulong, 0444);
 507 MODULE_PARM_DESC(osd_sync_destroy_max_size, "Maximum object size to use synchronous destroy.");
 508
 509 static inline void
 510 osd_object_set_destroy_type(struct osd_object *obj)
 511 {
 512         /*
 513          * Lock-less OST_WRITE can race with OST_DESTROY, so set destroy type
 514          * only once and use it consistently thereafter.
 515          */
 516         down_write(&obj->oo_guard);
 517         if (obj->oo_destroy == OSD_DESTROY_NONE) {
 518                 if (obj->oo_attr.la_size <= osd_sync_destroy_max_size)
 519                         obj->oo_destroy = OSD_DESTROY_SYNC;
 520                 else /* Larger objects are destroyed asynchronously */
 521                         obj->oo_destroy = OSD_DESTROY_ASYNC;
 522         }
 523         up_write(&obj->oo_guard);
 524 }
 525
 526 static int osd_declare_destroy(const struct lu_env *env, struct dt_object *dt,
 527                                struct thandle *th)
 528 {
 529         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
 530         struct osd_object       *obj = osd_dt_obj(dt);
 531         struct osd_device       *osd = osd_obj2dev(obj);
 532         struct osd_thandle      *oh;
 533         dnode_t *dn;
 534         int                      rc;
 535         uint64_t                 zapid;
 536         ENTRY;
 537
 538         LASSERT(th != NULL);
 539         LASSERT(dt_object_exists(dt));
 540
 541         oh = container_of0(th, struct osd_thandle, ot_super);
 542         LASSERT(oh->ot_tx != NULL);
 543
 544         /* declare that we'll remove object from fid-dnode mapping */
 545         zapid = osd_get_name_n_idx(env, osd, fid, NULL, 0, &dn);
 546         osd_tx_hold_zap(oh->ot_tx, zapid, dn, FALSE, NULL);
 547
 548         osd_declare_xattrs_destroy(env, obj, oh);
 549
 550         /* one less inode */
 551         rc = osd_declare_quota(env, osd, obj->oo_attr.la_uid,
 552                                obj->oo_attr.la_gid, -1, oh, false, NULL, false);
 553         if (rc)
 554                 RETURN(rc);
 555
 556         /* data to be truncated */
 557         rc = osd_declare_quota(env, osd, obj->oo_attr.la_uid,
 558                                obj->oo_attr.la_gid, 0, oh, true, NULL, false);
 559         if (rc)
 560                 RETURN(rc);
 561
 562         osd_object_set_destroy_type(obj);
 563         if (obj->oo_destroy == OSD_DESTROY_SYNC)
 564                 dmu_tx_hold_free(oh->ot_tx, obj->oo_dn->dn_object,
 565                                  0, DMU_OBJECT_END);
 566         else
 567                 osd_tx_hold_zap(oh->ot_tx, osd->od_unlinked->dn_object,
 568                                 osd->od_unlinked, TRUE, NULL);
 569
 570         /* will help to find FID->ino when this object is being
 571          * added to PENDING/ */
 572         osd_idc_find_and_init(env, osd, obj);
 573
 574         RETURN(0);
 575 }
 576
 577 static int osd_destroy(const struct lu_env *env, struct dt_object *dt,
 578                        struct thandle *th)
 579 {
 580         struct osd_thread_info  *info = osd_oti_get(env);
 581         char                    *buf = info->oti_str;
 582         struct osd_object       *obj = osd_dt_obj(dt);
 583         struct osd_device       *osd = osd_obj2dev(obj);
 584         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
 585         struct osd_thandle      *oh;
 586         int                      rc;
 587         uint64_t                 oid, zapid;
 588         dnode_t *zdn;
 589         ENTRY;
 590
 591         down_write(&obj->oo_guard);
 592
 593         if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
 594                 GOTO(out, rc = -ENOENT);
 595
 596         LASSERT(obj->oo_dn != NULL);
 597
 598         oh = container_of0(th, struct osd_thandle, ot_super);
 599         LASSERT(oh != NULL);
 600         LASSERT(oh->ot_tx != NULL);
 601
 602         /* remove obj ref from index dir (it depends) */
 603         zapid = osd_get_name_n_idx(env, osd, fid, buf,
 604                                    sizeof(info->oti_str), &zdn);
 605         rc = osd_zap_remove(osd, zapid, zdn, buf, oh->ot_tx);
 606         if (rc) {
 607                 CERROR("%s: zap_remove(%s) failed: rc = %d\n",
 608                        osd->od_svname, buf, rc);
 609                 GOTO(out, rc);
 610         }
 611
 612         rc = osd_xattrs_destroy(env, obj, oh);
 613         if (rc) {
 614                 CERROR("%s: cannot destroy xattrs for %s: rc = %d\n",
 615                        osd->od_svname, buf, rc);
 616                 GOTO(out, rc);
 617         }
 618
 619         oid = obj->oo_dn->dn_object;
 620         if (unlikely(obj->oo_destroy == OSD_DESTROY_NONE)) {
 621                 /* this may happen if the destroy wasn't declared
 622                  * e.g. when the object is created and then destroyed
 623                  * in the same transaction - we don't need additional
 624                  * space for destroy specifically */
 625                 LASSERT(obj->oo_attr.la_size <= osd_sync_destroy_max_size);
 626                 rc = -dmu_object_free(osd->od_os, oid, oh->ot_tx);
 627                 if (rc)
 628                         CERROR("%s: failed to free %s %llu: rc = %d\n",
 629                                osd->od_svname, buf, oid, rc);
 630         } else if (obj->oo_destroy == OSD_DESTROY_SYNC) {
 631                 rc = -dmu_object_free(osd->od_os, oid, oh->ot_tx);
 632                 if (rc)
 633                         CERROR("%s: failed to free %s %llu: rc = %d\n",
 634                                osd->od_svname, buf, oid, rc);
 635         } else { /* asynchronous destroy */
 636                 char *key = info->oti_key;
 637
 638                 rc = osd_object_unlinked_add(obj, oh);
 639                 if (rc)
 640                         GOTO(out, rc);
 641
 642                 snprintf(key, sizeof(info->oti_key), "%llx", oid);
 643                 rc = osd_zap_add(osd, osd->od_unlinked->dn_object,
 644                                  osd->od_unlinked, key, 8, 1, &oid, oh->ot_tx);
 645                 if (rc)
 646                         CERROR("%s: zap_add_int() failed %s %llu: rc = %d\n",
 647                                osd->od_svname, buf, oid, rc);
 648         }
 649
 650 out:
 651         /* not needed in the cache anymore */
 652         set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
 653         if (rc == 0)
 654                 obj->oo_destroyed = 1;
 655         up_write(&obj->oo_guard);
 656         RETURN (0);
 657 }
 658
 659 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
 660 {
 661         struct osd_object *obj = osd_obj(l);
 662         const struct lu_fid *fid = lu_object_fid(l);
 663
 664         if (obj->oo_dn) {
 665                 if (likely(!fid_is_acct(fid))) {
 666                         osd_object_sa_fini(obj);
 667                         if (obj->oo_sa_xattr) {
 668                                 nvlist_free(obj->oo_sa_xattr);
 669                                 obj->oo_sa_xattr = NULL;
 670                         }
 671                         osd_dnode_rele(obj->oo_dn);
 672                         list_del(&obj->oo_sa_linkage);
 673                 }
 674                 obj->oo_dn = NULL;
 675         }
 676 }
 677
 678 /*
 679  * Concurrency: ->loo_object_release() is called under site spin-lock.
 680  */
 681 static void osd_object_release(const struct lu_env *env,
 682                                struct lu_object *l)
 683 {
 684 }
 685
 686 /*
 687  * Concurrency: shouldn't matter.
 688  */
 689 static int osd_object_print(const struct lu_env *env, void *cookie,
 690                             lu_printer_t p, const struct lu_object *l)
 691 {
 692         struct osd_object *o = osd_obj(l);
 693
 694         return (*p)(env, cookie, LUSTRE_OSD_ZFS_NAME"-object@%p", o);
 695 }
 696
 697 static void osd_read_lock(const struct lu_env *env, struct dt_object *dt,
 698                           unsigned role)
 699 {
 700         struct osd_object *obj = osd_dt_obj(dt);
 701
 702         LASSERT(osd_invariant(obj));
 703
 704         down_read_nested(&obj->oo_sem, role);
 705 }
 706
 707 static void osd_write_lock(const struct lu_env *env, struct dt_object *dt,
 708                            unsigned role)
 709 {
 710         struct osd_object *obj = osd_dt_obj(dt);
 711
 712         LASSERT(osd_invariant(obj));
 713
 714         down_write_nested(&obj->oo_sem, role);
 715 }
 716
 717 static void osd_read_unlock(const struct lu_env *env, struct dt_object *dt)
 718 {
 719         struct osd_object *obj = osd_dt_obj(dt);
 720
 721         LASSERT(osd_invariant(obj));
 722         up_read(&obj->oo_sem);
 723 }
 724
 725 static void osd_write_unlock(const struct lu_env *env, struct dt_object *dt)
 726 {
 727         struct osd_object *obj = osd_dt_obj(dt);
 728
 729         LASSERT(osd_invariant(obj));
 730         up_write(&obj->oo_sem);
 731 }
 732
 733 static int osd_write_locked(const struct lu_env *env, struct dt_object *dt)
 734 {
 735         struct osd_object *obj = osd_dt_obj(dt);
 736         int rc = 1;
 737
 738         LASSERT(osd_invariant(obj));
 739
 740         if (down_write_trylock(&obj->oo_sem)) {
 741                 rc = 0;
 742                 up_write(&obj->oo_sem);
 743         }
 744         return rc;
 745 }
 746
 747 static int osd_attr_get(const struct lu_env *env,
 748                         struct dt_object *dt,
 749                         struct lu_attr *attr)
 750 {
 751         struct osd_object       *obj = osd_dt_obj(dt);
 752         uint64_t                 blocks;
 753         uint32_t                 blksize;
 754         int                      rc = 0;
 755
 756         down_read(&obj->oo_guard);
 757
 758         if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
 759                 GOTO(out, rc = -ENOENT);
 760
 761         if (unlikely(fid_is_acct(lu_object_fid(&dt->do_lu))))
 762                 GOTO(out, rc = 0);
 763
 764         LASSERT(osd_invariant(obj));
 765         LASSERT(obj->oo_dn);
 766
 767         read_lock(&obj->oo_attr_lock);
 768         *attr = obj->oo_attr;
 769         if (obj->oo_lma_flags & LUSTRE_ORPHAN_FL)
 770                 attr->la_flags |= LUSTRE_ORPHAN_FL;
 771         read_unlock(&obj->oo_attr_lock);
 772
 773         /* with ZFS_DEBUG zrl_add_debug() called by DB_DNODE_ENTER()
 774          * from within sa_object_size() can block on a mutex, so
 775          * we can't call sa_object_size() holding rwlock */
 776         sa_object_size(obj->oo_sa_hdl, &blksize, &blocks);
 777         /* we do not control size of indices, so always calculate
 778          * it from number of blocks reported by DMU */
 779         if (S_ISDIR(attr->la_mode))
 780                 attr->la_size = 512 * blocks;
 781         /* Block size may be not set; suggest maximal I/O transfers. */
 782         if (blksize == 0)
 783                 blksize = osd_spa_maxblocksize(
 784                         dmu_objset_spa(osd_obj2dev(obj)->od_os));
 785
 786         attr->la_blksize = blksize;
 787         attr->la_blocks = blocks;
 788         attr->la_valid |= LA_BLOCKS | LA_BLKSIZE;
 789
 790 out:
 791         up_read(&obj->oo_guard);
 792         return rc;
 793 }
 794
 795 /* Simple wrapper on top of qsd API which implement quota transfer for osd
 796  * setattr needs. As a reminder, only the root user can change ownership of
 797  * a file, that's why EDQUOT & EINPROGRESS errors are discarded */
 798 static inline int qsd_transfer(const struct lu_env *env,
 799                                struct qsd_instance *qsd,
 800                                struct lquota_trans *trans, int qtype,
 801                                __u64 orig_id, __u64 new_id, __u64 bspace,
 802                                struct lquota_id_info *qi)
 803 {
 804         int     rc;
 805
 806         if (unlikely(qsd == NULL))
 807                 return 0;
 808
 809         LASSERT(qtype >= 0 && qtype < LL_MAXQUOTAS);
 810         qi->lqi_type = qtype;
 811
 812         /* inode accounting */
 813         qi->lqi_is_blk = false;
 814
 815         /* one more inode for the new owner ... */
 816         qi->lqi_id.qid_uid = new_id;
 817         qi->lqi_space      = 1;
 818         rc = qsd_op_begin(env, qsd, trans, qi, NULL);
 819         if (rc == -EDQUOT || rc == -EINPROGRESS)
 820                 rc = 0;
 821         if (rc)
 822                 return rc;
 823
 824         /* and one less inode for the current id */
 825         qi->lqi_id.qid_uid = orig_id;;
 826         qi->lqi_space      = -1;
 827         /* can't get EDQUOT when reducing usage */
 828         rc = qsd_op_begin(env, qsd, trans, qi, NULL);
 829         if (rc == -EINPROGRESS)
 830                 rc = 0;
 831         if (rc)
 832                 return rc;
 833
 834         /* block accounting */
 835         qi->lqi_is_blk = true;
 836
 837         /* more blocks for the new owner ... */
 838         qi->lqi_id.qid_uid = new_id;
 839         qi->lqi_space      = bspace;
 840         rc = qsd_op_begin(env, qsd, trans, qi, NULL);
 841         if (rc == -EDQUOT || rc == -EINPROGRESS)
 842                 rc = 0;
 843         if (rc)
 844                 return rc;
 845
 846         /* and finally less blocks for the current owner */
 847         qi->lqi_id.qid_uid = orig_id;
 848         qi->lqi_space      = -bspace;
 849         rc = qsd_op_begin(env, qsd, trans, qi, NULL);
 850         /* can't get EDQUOT when reducing usage */
 851         if (rc == -EINPROGRESS)
 852                 rc = 0;
 853         return rc;
 854 }
 855
 856 static int osd_declare_attr_set(const struct lu_env *env,
 857                                 struct dt_object *dt,
 858                                 const struct lu_attr *attr,
 859                                 struct thandle *handle)
 860 {
 861         struct osd_thread_info  *info = osd_oti_get(env);
 862         struct osd_object       *obj = osd_dt_obj(dt);
 863         struct osd_device       *osd = osd_obj2dev(obj);
 864         dmu_tx_hold_t           *txh;
 865         struct osd_thandle      *oh;
 866         uint64_t                 bspace;
 867         uint32_t                 blksize;
 868         int                      rc = 0;
 869         bool                     found;
 870         ENTRY;
 871
 872
 873         LASSERT(handle != NULL);
 874         LASSERT(osd_invariant(obj));
 875
 876         oh = container_of0(handle, struct osd_thandle, ot_super);
 877
 878         down_read(&obj->oo_guard);
 879         if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
 880                 GOTO(out, rc = 0);
 881
 882         LASSERT(obj->oo_sa_hdl != NULL);
 883         LASSERT(oh->ot_tx != NULL);
 884         /* regular attributes are part of the bonus buffer */
 885         /* let's check whether this object is already part of
 886          * transaction.. */
 887         found = false;
 888         for (txh = list_head(&oh->ot_tx->tx_holds); txh;
 889              txh = list_next(&oh->ot_tx->tx_holds, txh)) {
 890                 if (txh->txh_dnode == NULL)
 891                         continue;
 892                 if (txh->txh_dnode->dn_object != obj->oo_dn->dn_object)
 893                         continue;
 894                 /* this object is part of the transaction already
 895                  * we don't need to declare bonus again */
 896                 found = true;
 897                 break;
 898         }
 899         if (!found)
 900                 dmu_tx_hold_bonus(oh->ot_tx, obj->oo_dn->dn_object);
 901         if (oh->ot_tx->tx_err != 0)
 902                 GOTO(out, rc = -oh->ot_tx->tx_err);
 903
 904         if (attr && attr->la_valid & LA_FLAGS) {
 905                 /* LMA is usually a part of bonus, no need to declare
 906                  * anything else */
 907         }
 908
 909         if (attr && (attr->la_valid & (LA_UID | LA_GID))) {
 910                 sa_object_size(obj->oo_sa_hdl, &blksize, &bspace);
 911                 bspace = toqb(bspace * blksize);
 912         }
 913
 914         if (attr && attr->la_valid & LA_UID) {
 915                 /* quota enforcement for user */
 916                 if (attr->la_uid != obj->oo_attr.la_uid) {
 917                         rc = qsd_transfer(env, osd->od_quota_slave,
 918                                           &oh->ot_quota_trans, USRQUOTA,
 919                                           obj->oo_attr.la_uid, attr->la_uid,
 920                                           bspace, &info->oti_qi);
 921                         if (rc)
 922                                 GOTO(out, rc);
 923                 }
 924         }
 925         if (attr && attr->la_valid & LA_GID) {
 926                 /* quota enforcement for group */
 927                 if (attr->la_gid != obj->oo_attr.la_gid) {
 928                         rc = qsd_transfer(env, osd->od_quota_slave,
 929                                           &oh->ot_quota_trans, GRPQUOTA,
 930                                           obj->oo_attr.la_gid, attr->la_gid,
 931                                           bspace, &info->oti_qi);
 932                         if (rc)
 933                                 GOTO(out, rc);
 934                 }
 935         }
 936
 937 out:
 938         up_read(&obj->oo_guard);
 939         RETURN(rc);
 940 }
 941
 942 /*
 943  * Set the attributes of an object
 944  *
 945  * The transaction passed to this routine must have
 946  * dmu_tx_hold_bonus(tx, oid) called and then assigned
 947  * to a transaction group.
 948  */
 949 static int osd_attr_set(const struct lu_env *env, struct dt_object *dt,
 950                         const struct lu_attr *la, struct thandle *handle)
 951 {
 952         struct osd_thread_info  *info = osd_oti_get(env);
 953         sa_bulk_attr_t          *bulk = osd_oti_get(env)->oti_attr_bulk;
 954         struct osd_object       *obj = osd_dt_obj(dt);
 955         struct osd_device       *osd = osd_obj2dev(obj);
 956         struct osd_thandle      *oh;
 957         struct osa_attr         *osa = &info->oti_osa;
 958         __u64                    valid = la->la_valid;
 959         int                      cnt;
 960         int                      rc = 0;
 961
 962         ENTRY;
 963
 964         down_read(&obj->oo_guard);
 965         if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
 966                 GOTO(out, rc = -ENOENT);
 967
 968         LASSERT(handle != NULL);
 969         LASSERT(osd_invariant(obj));
 970         LASSERT(obj->oo_sa_hdl);
 971
 972         oh = container_of0(handle, struct osd_thandle, ot_super);
 973         /* Assert that the transaction has been assigned to a
 974            transaction group. */
 975         LASSERT(oh->ot_tx->tx_txg != 0);
 976
 977         /* Only allow set size for regular file */
 978         if (!S_ISREG(dt->do_lu.lo_header->loh_attr))
 979                 valid &= ~(LA_SIZE | LA_BLOCKS);
 980
 981         if (valid & LA_CTIME && la->la_ctime == obj->oo_attr.la_ctime)
 982                 valid &= ~LA_CTIME;
 983
 984         if (valid & LA_MTIME && la->la_mtime == obj->oo_attr.la_mtime)
 985                 valid &= ~LA_MTIME;
 986
 987         if (valid & LA_ATIME && la->la_atime == obj->oo_attr.la_atime)
 988                 valid &= ~LA_ATIME;
 989
 990         if (valid == 0)
 991                 GOTO(out, rc = 0);
 992
 993         if (valid & LA_FLAGS) {
 994                 struct lustre_mdt_attrs *lma;
 995                 struct lu_buf buf;
 996
 997                 if (la->la_flags & LUSTRE_LMA_FL_MASKS) {
 998                         CLASSERT(sizeof(info->oti_buf) >= sizeof(*lma));
 999                         lma = (struct lustre_mdt_attrs *)&info->oti_buf;
1000                         buf.lb_buf = lma;
1001                         buf.lb_len = sizeof(info->oti_buf);
1002                         rc = osd_xattr_get(env, &obj->oo_dt, &buf,
1003                                            XATTR_NAME_LMA);
1004                         if (rc > 0) {
1005                                 lma->lma_incompat =
1006                                         le32_to_cpu(lma->lma_incompat);
1007                                 lma->lma_incompat |=
1008                                         lustre_to_lma_flags(la->la_flags);
1009                                 lma->lma_incompat =
1010                                         cpu_to_le32(lma->lma_incompat);
1011                                 buf.lb_buf = lma;
1012                                 buf.lb_len = sizeof(*lma);
1013                                 rc = osd_xattr_set_internal(env, obj, &buf,
1014                                                             XATTR_NAME_LMA,
1015                                                             LU_XATTR_REPLACE,
1016                                                             oh);
1017                         }
1018                         if (rc < 0) {
1019                                 CWARN("%s: failed to set LMA flags: rc = %d\n",
1020                                        osd->od_svname, rc);
1021                                 RETURN(rc);
1022                         }
1023                 }
1024         }
1025
1026         write_lock(&obj->oo_attr_lock);
1027         cnt = 0;
1028         if (valid & LA_ATIME) {
1029                 osa->atime[0] = obj->oo_attr.la_atime = la->la_atime;
1030                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(osd), NULL,
1031                                  osa->atime, 16);
1032         }
1033         if (valid & LA_MTIME) {
1034                 osa->mtime[0] = obj->oo_attr.la_mtime = la->la_mtime;
1035                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(osd), NULL,
1036                                  osa->mtime, 16);
1037         }
1038         if (valid & LA_CTIME) {
1039                 osa->ctime[0] = obj->oo_attr.la_ctime = la->la_ctime;
1040                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(osd), NULL,
1041                                  osa->ctime, 16);
1042         }
1043         if (valid & LA_MODE) {
1044                 /* mode is stored along with type, so read it first */
1045                 obj->oo_attr.la_mode = (obj->oo_attr.la_mode & S_IFMT) |
1046                         (la->la_mode & ~S_IFMT);
1047                 osa->mode = obj->oo_attr.la_mode;
1048                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(osd), NULL,
1049                                  &osa->mode, 8);
1050         }
1051         if (valid & LA_SIZE) {
1052                 osa->size = obj->oo_attr.la_size = la->la_size;
1053                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(osd), NULL,
1054                                  &osa->size, 8);
1055         }
1056         if (valid & LA_NLINK) {
1057                 osa->nlink = obj->oo_attr.la_nlink = la->la_nlink;
1058                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(osd), NULL,
1059                                  &osa->nlink, 8);
1060         }
1061         if (valid & LA_RDEV) {
1062                 osa->rdev = obj->oo_attr.la_rdev = la->la_rdev;
1063                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_RDEV(osd), NULL,
1064                                  &osa->rdev, 8);
1065         }
1066         if (valid & LA_FLAGS) {
1067                 osa->flags = attrs_fs2zfs(la->la_flags);
1068                 /* many flags are not supported by zfs, so ensure a good cached
1069                  * copy */
1070                 obj->oo_attr.la_flags = attrs_zfs2fs(osa->flags);
1071                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(osd), NULL,
1072                                  &osa->flags, 8);
1073         }
1074         if (valid & LA_UID) {
1075                 osa->uid = obj->oo_attr.la_uid = la->la_uid;
1076                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(osd), NULL,
1077                                  &osa->uid, 8);
1078         }
1079         if (valid & LA_GID) {
1080                 osa->gid = obj->oo_attr.la_gid = la->la_gid;
1081                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(osd), NULL,
1082                                  &osa->gid, 8);
1083         }
1084         obj->oo_attr.la_valid |= valid;
1085         write_unlock(&obj->oo_attr_lock);
1086
1087         LASSERT(cnt <= ARRAY_SIZE(osd_oti_get(env)->oti_attr_bulk));
1088         rc = osd_object_sa_bulk_update(obj, bulk, cnt, oh);
1089
1090 out:
1091         up_read(&obj->oo_guard);
1092         RETURN(rc);
1093 }
1094
1095 /*
1096  * Object creation.
1097  *
1098  * XXX temporary solution.
1099  */
1100
1101 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
1102                         struct dt_object *parent, struct dt_object *child,
1103                         umode_t child_mode)
1104 {
1105         LASSERT(ah);
1106
1107         ah->dah_parent = parent;
1108         ah->dah_mode = child_mode;
1109
1110         if (parent != NULL && !dt_object_remote(parent)) {
1111                 /* will help to find FID->ino at dt_insert("..") */
1112                 struct osd_object *pobj = osd_dt_obj(parent);
1113
1114                 osd_idc_find_and_init(env, osd_obj2dev(pobj), pobj);
1115         }
1116 }
1117
1118 static int osd_declare_create(const struct lu_env *env, struct dt_object *dt,
1119                               struct lu_attr *attr,
1120                               struct dt_allocation_hint *hint,
1121                               struct dt_object_format *dof,
1122                               struct thandle *handle)
1123 {
1124         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
1125         struct osd_object       *obj = osd_dt_obj(dt);
1126         struct osd_device       *osd = osd_obj2dev(obj);
1127         struct osd_thandle      *oh;
1128         uint64_t                 zapid;
1129         dnode_t                 *dn;
1130         int                      rc, dnode_size;
1131         ENTRY;
1132
1133         LASSERT(dof);
1134
1135         switch (dof->dof_type) {
1136                 case DFT_REGULAR:
1137                 case DFT_SYM:
1138                 case DFT_NODE:
1139                         if (obj->oo_dt.do_body_ops == NULL)
1140                                 obj->oo_dt.do_body_ops = &osd_body_ops;
1141                         break;
1142                 default:
1143                         break;
1144         }
1145
1146         LASSERT(handle != NULL);
1147         oh = container_of0(handle, struct osd_thandle, ot_super);
1148         LASSERT(oh->ot_tx != NULL);
1149
1150         /* this is the minimum set of EAs on every Lustre object */
1151         obj->oo_ea_in_bonus = ZFS_SA_BASE_ATTR_SIZE +
1152                                 sizeof(__u64) + /* VBR VERSION */
1153                                 sizeof(struct lustre_mdt_attrs); /* LMA */
1154         /* reserve 32 bytes for extra stuff like ACLs */
1155         dnode_size = size_roundup_power2(obj->oo_ea_in_bonus + 32);
1156
1157         switch (dof->dof_type) {
1158                 case DFT_DIR:
1159                         dt->do_index_ops = &osd_dir_ops;
1160                 case DFT_INDEX:
1161                         /* for zap create */
1162                         dmu_tx_hold_zap(oh->ot_tx, DMU_NEW_OBJECT, FALSE, NULL);
1163                         dmu_tx_hold_sa_create(oh->ot_tx, dnode_size);
1164                         break;
1165                 case DFT_REGULAR:
1166                 case DFT_SYM:
1167                 case DFT_NODE:
1168                         /* first, we'll create new object */
1169                         dmu_tx_hold_sa_create(oh->ot_tx, dnode_size);
1170                         break;
1171
1172                 default:
1173                         LBUG();
1174                         break;
1175         }
1176
1177         /* and we'll add it to some mapping */
1178         zapid = osd_get_name_n_idx(env, osd, fid, NULL, 0, &dn);
1179         osd_tx_hold_zap(oh->ot_tx, zapid, dn, TRUE, NULL);
1180
1181         /* will help to find FID->ino mapping at dt_insert() */
1182         osd_idc_find_and_init(env, osd, obj);
1183
1184         rc = osd_declare_quota(env, osd, attr->la_uid, attr->la_gid, 1, oh,
1185                                false, NULL, false);
1186
1187         RETURN(rc);
1188 }
1189
1190 int __osd_attr_init(const struct lu_env *env, struct osd_device *osd,
1191                     sa_handle_t *sa_hdl, dmu_tx_t *tx,
1192                     struct lu_attr *la, uint64_t parent,
1193                     nvlist_t *xattr)
1194 {
1195         sa_bulk_attr_t  *bulk = osd_oti_get(env)->oti_attr_bulk;
1196         struct osa_attr *osa = &osd_oti_get(env)->oti_osa;
1197         uint64_t         gen;
1198         uint64_t         crtime[2];
1199         timestruc_t      now;
1200         int              cnt;
1201         int              rc;
1202         char *dxattr = NULL;
1203         size_t sa_size;
1204
1205
1206         LASSERT(sa_hdl);
1207
1208         gen = dmu_tx_get_txg(tx);
1209         gethrestime(&now);
1210         ZFS_TIME_ENCODE(&now, crtime);
1211
1212         osa->atime[0] = la->la_atime;
1213         osa->ctime[0] = la->la_ctime;
1214         osa->mtime[0] = la->la_mtime;
1215         osa->mode = la->la_mode;
1216         osa->uid = la->la_uid;
1217         osa->gid = la->la_gid;
1218         osa->rdev = la->la_rdev;
1219         osa->nlink = la->la_nlink;
1220         osa->flags = attrs_fs2zfs(la->la_flags);
1221         osa->size  = la->la_size;
1222
1223         /*
1224          * we need to create all SA below upon object create.
1225          *
1226          * XXX The attribute order matters since the accounting callback relies
1227          * on static offsets (i.e. SA_*_OFFSET, see zfs_space_delta_cb()) to
1228          * look up the UID/GID attributes. Moreover, the callback does not seem
1229          * to support the spill block.
1230          * We define attributes in the same order as SA_*_OFFSET in order to
1231          * work around the problem. See ORI-610.
1232          */
1233         cnt = 0;
1234         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(osd), NULL, &osa->mode, 8);
1235         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(osd), NULL, &osa->size, 8);
1236         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GEN(osd), NULL, &gen, 8);
1237         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(osd), NULL, &osa->uid, 8);
1238         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(osd), NULL, &osa->gid, 8);
1239         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_PARENT(osd), NULL, &parent, 8);
1240         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(osd), NULL, &osa->flags, 8);
1241         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(osd), NULL, osa->atime, 16);
1242         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(osd), NULL, osa->mtime, 16);
1243         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(osd), NULL, osa->ctime, 16);
1244         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CRTIME(osd), NULL, crtime, 16);
1245         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(osd), NULL, &osa->nlink, 8);
1246         SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_RDEV(osd), NULL, &osa->rdev, 8);
1247         LASSERT(cnt <= ARRAY_SIZE(osd_oti_get(env)->oti_attr_bulk));
1248
1249         if (xattr) {
1250                 rc = -nvlist_size(xattr, &sa_size, NV_ENCODE_XDR);
1251                 LASSERT(rc == 0);
1252
1253                 dxattr = osd_zio_buf_alloc(sa_size);
1254                 LASSERT(dxattr);
1255
1256                 rc = -nvlist_pack(xattr, &dxattr, &sa_size,
1257                                 NV_ENCODE_XDR, KM_SLEEP);
1258                 LASSERT(rc == 0);
1259
1260                 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_DXATTR(osd),
1261                                 NULL, dxattr, sa_size);
1262         }
1263
1264         rc = -sa_replace_all_by_template(sa_hdl, bulk, cnt, tx);
1265         if (dxattr)
1266                 osd_zio_buf_free(dxattr, sa_size);
1267
1268         return rc;
1269 }
1270
1271 static int osd_find_new_dnode(const struct lu_env *env, dmu_tx_t *tx,
1272                               uint64_t oid, dnode_t **dnp)
1273 {
1274         dmu_tx_hold_t *txh;
1275         int rc = 0;
1276
1277         /* take dnode_t from tx to save on dnode#->dnode_t lookup */
1278         for (txh = list_tail(&tx->tx_holds); txh;
1279              txh = list_prev(&tx->tx_holds, txh)) {
1280                 dnode_t *dn = txh->txh_dnode;
1281                 dmu_buf_impl_t *db;
1282
1283                 if (dn == NULL)
1284                         continue;
1285                 if (dn->dn_object != oid)
1286                         continue;
1287                 db = dn->dn_bonus;
1288                 if (db == NULL) {
1289                         rw_enter(&dn->dn_struct_rwlock, RW_WRITER);
1290                         if (dn->dn_bonus == NULL)
1291                                 dbuf_create_bonus(dn);
1292                         rw_exit(&dn->dn_struct_rwlock);
1293                 }
1294                 db = dn->dn_bonus;
1295                 LASSERT(db);
1296                 LASSERT(dn->dn_handle);
1297                 DB_DNODE_ENTER(db);
1298                 if (refcount_add(&db->db_holds, osd_obj_tag) == 1) {
1299                         refcount_add(&dn->dn_holds, tag);
1300                         atomic_inc_32(&dn->dn_dbufs_count);
1301                 }
1302                 *dnp = dn;
1303                 dbuf_read(db, NULL, DB_RF_MUST_SUCCEED | DB_RF_NOPREFETCH);
1304                 break;
1305         }
1306
1307         if (unlikely(*dnp == NULL))
1308                 rc = __osd_obj2dnode(tx->tx_objset, oid, dnp);
1309
1310         return rc;
1311 }
1312
1313 /*
1314  * The transaction passed to this routine must have
1315  * dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT) called and then assigned
1316  * to a transaction group.
1317  */
1318 int __osd_object_create(const struct lu_env *env, struct osd_object *obj,
1319                         dnode_t **dnp, dmu_tx_t *tx, struct lu_attr *la)
1320 {
1321         struct osd_device   *osd = osd_obj2dev(obj);
1322         const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
1323         dmu_object_type_t    type = DMU_OT_PLAIN_FILE_CONTENTS;
1324         uint64_t oid;
1325
1326         /* Use DMU_OTN_UINT8_METADATA for local objects so their data blocks
1327          * would get an additional ditto copy */
1328         if (unlikely(S_ISREG(la->la_mode) &&
1329                      fid_seq_is_local_file(fid_seq(fid))))
1330                 type = DMU_OTN_UINT8_METADATA;
1331
1332         /* Create a new DMU object using the default dnode size. */
1333         oid = osd_dmu_object_alloc(osd->od_os, type, 0, 0, tx);
1334
1335         LASSERT(la->la_valid & LA_MODE);
1336         la->la_size = 0;
1337         la->la_nlink = 1;
1338
1339         return osd_find_new_dnode(env, tx, oid, dnp);
1340 }
1341
1342 /*
1343  * The transaction passed to this routine must have
1344  * dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, ...) called and then assigned
1345  * to a transaction group.
1346  *
1347  * Using ZAP_FLAG_HASH64 will force the ZAP to always be a FAT ZAP.
1348  * This is fine for directories today, because storing the FID in the dirent
1349  * will also require a FAT ZAP.  If there is a new type of micro ZAP created
1350  * then we might need to re-evaluate the use of this flag and instead do
1351  * a conversion from the different internal ZAP hash formats being used. */
1352 int __osd_zap_create(const struct lu_env *env, struct osd_device *osd,
1353                      dnode_t **dnp, dmu_tx_t *tx, struct lu_attr *la,
1354                      zap_flags_t flags)
1355 {
1356         uint64_t oid;
1357
1358         /* Assert that the transaction has been assigned to a
1359            transaction group. */
1360         LASSERT(tx->tx_txg != 0);
1361         *dnp = NULL;
1362
1363         oid = osd_zap_create_flags(osd->od_os, 0, flags | ZAP_FLAG_HASH64,
1364                                    DMU_OT_DIRECTORY_CONTENTS,
1365                                    14, /* == ZFS fzap_default_blockshift */
1366                                    DN_MAX_INDBLKSHIFT, /* indirect blockshift */
1367                                    0, tx);
1368
1369         la->la_size = 2;
1370         la->la_nlink = 1;
1371
1372         return osd_find_new_dnode(env, tx, oid, dnp);
1373 }
1374
1375 static dnode_t *osd_mkidx(const struct lu_env *env, struct osd_object *obj,
1376                           struct lu_attr *la, struct osd_thandle *oh)
1377 {
1378         dnode_t *dn;
1379         int rc;
1380
1381         /* Index file should be created as regular file in order not to confuse
1382          * ZPL which could interpret them as directory.
1383          * We set ZAP_FLAG_UINT64_KEY to let ZFS know than we are going to use
1384          * binary keys */
1385         LASSERT(S_ISREG(la->la_mode));
1386         rc = __osd_zap_create(env, osd_obj2dev(obj), &dn, oh->ot_tx, la,
1387                               ZAP_FLAG_UINT64_KEY);
1388         if (rc)
1389                 return ERR_PTR(rc);
1390         return dn;
1391 }
1392
1393 static dnode_t *osd_mkdir(const struct lu_env *env, struct osd_object *obj,
1394                           struct lu_attr *la, struct osd_thandle *oh)
1395 {
1396         dnode_t *dn;
1397         int rc;
1398
1399         LASSERT(S_ISDIR(la->la_mode));
1400         rc = __osd_zap_create(env, osd_obj2dev(obj), &dn, oh->ot_tx, la, 0);
1401         if (rc)
1402                 return ERR_PTR(rc);
1403         return dn;
1404 }
1405
1406 static dnode_t *osd_mkreg(const struct lu_env *env, struct osd_object *obj,
1407                           struct lu_attr *la, struct osd_thandle *oh)
1408 {
1409         const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
1410         struct osd_device *osd = osd_obj2dev(obj);
1411         dnode_t *dn;
1412         int rc;
1413
1414         LASSERT(S_ISREG(la->la_mode));
1415         rc = __osd_object_create(env, obj, &dn, oh->ot_tx, la);
1416         if (rc)
1417                 return ERR_PTR(rc);
1418
1419         if ((fid_is_idif(fid) || fid_is_norm(fid) || fid_is_echo(fid)) &&
1420             osd->od_is_ost) {
1421                 /* The minimum block size must be at least page size otherwise
1422                  * it will break the assumption in tgt_thread_big_cache where
1423                  * the array size is PTLRPC_MAX_BRW_PAGES. It will also affect
1424                  * RDMA due to subpage transfer size */
1425                 rc = -dmu_object_set_blocksize(osd->od_os, dn->dn_object,
1426                                                PAGE_SIZE, 0, oh->ot_tx);
1427                 if (unlikely(rc)) {
1428                         CERROR("%s: can't change blocksize: %d\n",
1429                                osd->od_svname, rc);
1430                         return ERR_PTR(rc);
1431                 }
1432         }
1433
1434         return dn;
1435 }
1436
1437 static dnode_t *osd_mksym(const struct lu_env *env, struct osd_object *obj,
1438                           struct lu_attr *la, struct osd_thandle *oh)
1439 {
1440         dnode_t *dn;
1441         int rc;
1442
1443         LASSERT(S_ISLNK(la->la_mode));
1444         rc = __osd_object_create(env, obj, &dn, oh->ot_tx, la);
1445         if (rc)
1446                 return ERR_PTR(rc);
1447         return dn;
1448 }
1449
1450 static dnode_t *osd_mknod(const struct lu_env *env, struct osd_object *obj,
1451                           struct lu_attr *la, struct osd_thandle *oh)
1452 {
1453         dnode_t *dn;
1454         int rc;
1455
1456         if (S_ISCHR(la->la_mode) || S_ISBLK(la->la_mode))
1457                 la->la_valid |= LA_RDEV;
1458
1459         rc = __osd_object_create(env, obj, &dn, oh->ot_tx, la);
1460         if (rc)
1461                 return ERR_PTR(rc);
1462         return dn;
1463 }
1464
1465 typedef dnode_t *(*osd_obj_type_f)(const struct lu_env *env,
1466                                    struct osd_object *obj,
1467                                    struct lu_attr *la,
1468                                    struct osd_thandle *oh);
1469
1470 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
1471 {
1472         osd_obj_type_f result;
1473
1474         switch (type) {
1475         case DFT_DIR:
1476                 result = osd_mkdir;
1477                 break;
1478         case DFT_INDEX:
1479                 result = osd_mkidx;
1480                 break;
1481         case DFT_REGULAR:
1482                 result = osd_mkreg;
1483                 break;
1484         case DFT_SYM:
1485                 result = osd_mksym;
1486                 break;
1487         case DFT_NODE:
1488                 result = osd_mknod;
1489                 break;
1490         default:
1491                 LBUG();
1492                 break;
1493         }
1494         return result;
1495 }
1496
1497 /*
1498  * Concurrency: @dt is write locked.
1499  */
1500 static int osd_create(const struct lu_env *env, struct dt_object *dt,
1501                       struct lu_attr *attr, struct dt_allocation_hint *hint,
1502                       struct dt_object_format *dof, struct thandle *th)
1503 {
1504         struct osd_thread_info  *info = osd_oti_get(env);
1505         struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
1506         struct zpl_direntry     *zde = &info->oti_zde.lzd_reg;
1507         const struct lu_fid     *fid = lu_object_fid(&dt->do_lu);
1508         struct osd_object       *obj = osd_dt_obj(dt);
1509         struct osd_device       *osd = osd_obj2dev(obj);
1510         char                    *buf = info->oti_str;
1511         struct osd_thandle      *oh;
1512         dnode_t *dn = NULL, *zdn = NULL;
1513         uint64_t                 zapid, parent = 0;
1514         int                      rc;
1515
1516         ENTRY;
1517
1518         LASSERT(!fid_is_acct(fid));
1519
1520         /* concurrent create declarations should not see
1521          * the object inconsistent (db, attr, etc).
1522          * in regular cases acquisition should be cheap */
1523         down_write(&obj->oo_guard);
1524
1525         if (unlikely(dt_object_exists(dt)))
1526                 GOTO(out, rc = -EEXIST);
1527
1528         LASSERT(osd_invariant(obj));
1529         LASSERT(dof != NULL);
1530
1531         LASSERT(th != NULL);
1532         oh = container_of0(th, struct osd_thandle, ot_super);
1533
1534         LASSERT(obj->oo_dn == NULL);
1535
1536         /* to follow ZFS on-disk format we need
1537          * to initialize parent dnode properly */
1538         if (hint != NULL && hint->dah_parent != NULL &&
1539             !dt_object_remote(hint->dah_parent))
1540                 parent = osd_dt_obj(hint->dah_parent)->oo_dn->dn_object;
1541
1542         /* we may fix some attributes, better do not change the source */
1543         obj->oo_attr = *attr;
1544         obj->oo_attr.la_valid |= LA_SIZE | LA_NLINK | LA_TYPE;
1545
1546         dn = osd_create_type_f(dof->dof_type)(env, obj, &obj->oo_attr, oh);
1547         if (IS_ERR(dn)) {
1548                 rc = PTR_ERR(dn);
1549                 dn = NULL;
1550                 GOTO(out, rc);
1551         }
1552
1553         zde->zde_pad = 0;
1554         zde->zde_dnode = dn->dn_object;
1555         zde->zde_type = IFTODT(attr->la_mode & S_IFMT);
1556
1557         zapid = osd_get_name_n_idx(env, osd, fid, buf,
1558                                    sizeof(info->oti_str), &zdn);
1559         rc = osd_zap_add(osd, zapid, zdn, buf, 8, 1, zde, oh->ot_tx);
1560         if (rc)
1561                 GOTO(out, rc);
1562         obj->oo_dn = dn;
1563         /* Now add in all of the "SA" attributes */
1564         rc = osd_sa_handle_get(obj);
1565         if (rc)
1566                 GOTO(out, rc);
1567
1568         rc = -nvlist_alloc(&obj->oo_sa_xattr, NV_UNIQUE_NAME, KM_SLEEP);
1569         if (rc)
1570                 GOTO(out, rc);
1571
1572         /* initialize LMA */
1573         lustre_lma_init(lma, fid, 0, 0);
1574         lustre_lma_swab(lma);
1575         rc = -nvlist_add_byte_array(obj->oo_sa_xattr, XATTR_NAME_LMA,
1576                                     (uchar_t *)lma, sizeof(*lma));
1577         if (rc)
1578                 GOTO(out, rc);
1579
1580         /* configure new osd object */
1581         obj->oo_parent = parent != 0 ? parent : zapid;
1582         obj->oo_late_attr_set = 1;
1583         rc = __osd_sa_xattr_schedule_update(env, obj, oh);
1584         if (rc)
1585                 GOTO(out, rc);
1586
1587         /* XXX: oo_lma_flags */
1588         obj->oo_dt.do_lu.lo_header->loh_attr |= obj->oo_attr.la_mode & S_IFMT;
1589         if (likely(!fid_is_acct(lu_object_fid(&obj->oo_dt.do_lu))))
1590                 /* no body operations for accounting objects */
1591                 obj->oo_dt.do_body_ops = &osd_body_ops;
1592
1593         osd_idc_find_and_init(env, osd, obj);
1594
1595 out:
1596         if (unlikely(rc && dn)) {
1597                 dmu_object_free(osd->od_os, dn->dn_object, oh->ot_tx);
1598                 osd_dnode_rele(dn);
1599                 obj->oo_dn = NULL;
1600         } else if (!rc) {
1601                 obj->oo_dt.do_lu.lo_header->loh_attr |= LOHA_EXISTS;
1602         }
1603         up_write(&obj->oo_guard);
1604         RETURN(rc);
1605 }
1606
1607 static int osd_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
1608                                struct thandle *th)
1609 {
1610         return osd_declare_attr_set(env, dt, NULL, th);
1611 }
1612
1613 /*
1614  * Concurrency: @dt is write locked.
1615  */
1616 static int osd_ref_add(const struct lu_env *env, struct dt_object *dt,
1617                        struct thandle *handle)
1618 {
1619         struct osd_object       *obj = osd_dt_obj(dt);
1620         struct osd_thandle      *oh;
1621         struct osd_device       *osd = osd_obj2dev(obj);
1622         uint64_t                 nlink;
1623         int rc;
1624
1625         ENTRY;
1626
1627         down_read(&obj->oo_guard);
1628         if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
1629                 GOTO(out, rc = -ENOENT);
1630
1631         LASSERT(osd_invariant(obj));
1632         LASSERT(obj->oo_sa_hdl != NULL);
1633
1634         oh = container_of0(handle, struct osd_thandle, ot_super);
1635
1636         write_lock(&obj->oo_attr_lock);
1637         nlink = ++obj->oo_attr.la_nlink;
1638         write_unlock(&obj->oo_attr_lock);
1639
1640         rc = osd_object_sa_update(obj, SA_ZPL_LINKS(osd), &nlink, 8, oh);
1641
1642 out:
1643         up_read(&obj->oo_guard);
1644         RETURN(rc);
1645 }
1646
1647 static int osd_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
1648                                struct thandle *handle)
1649 {
1650         return osd_declare_attr_set(env, dt, NULL, handle);
1651 }
1652
1653 /*
1654  * Concurrency: @dt is write locked.
1655  */
1656 static int osd_ref_del(const struct lu_env *env, struct dt_object *dt,
1657                        struct thandle *handle)
1658 {
1659         struct osd_object       *obj = osd_dt_obj(dt);
1660         struct osd_thandle      *oh;
1661         struct osd_device       *osd = osd_obj2dev(obj);
1662         uint64_t                 nlink;
1663         int                      rc;
1664
1665         ENTRY;
1666
1667         down_read(&obj->oo_guard);
1668
1669         if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
1670                 GOTO(out, rc = -ENOENT);
1671
1672         LASSERT(osd_invariant(obj));
1673         LASSERT(obj->oo_sa_hdl != NULL);
1674
1675         oh = container_of0(handle, struct osd_thandle, ot_super);
1676         LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
1677
1678         write_lock(&obj->oo_attr_lock);
1679         nlink = --obj->oo_attr.la_nlink;
1680         write_unlock(&obj->oo_attr_lock);
1681
1682         rc = osd_object_sa_update(obj, SA_ZPL_LINKS(osd), &nlink, 8, oh);
1683
1684 out:
1685         up_read(&obj->oo_guard);
1686         RETURN(rc);
1687 }
1688
1689 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt,
1690                            __u64 start, __u64 end)
1691 {
1692         struct osd_device *osd = osd_obj2dev(osd_dt_obj(dt));
1693         ENTRY;
1694
1695         /* XXX: no other option than syncing the whole filesystem until we
1696          * support ZIL.  If the object tracked the txg that it was last
1697          * modified in, it could pass that txg here instead of "0".  Maybe
1698          * the changes are already committed, so no wait is needed at all? */
1699         if (!osd->od_dt_dev.dd_rdonly)
1700                 txg_wait_synced(dmu_objset_pool(osd->od_os), 0ULL);
1701
1702         RETURN(0);
1703 }
1704
1705 static int osd_invalidate(const struct lu_env *env, struct dt_object *dt)
1706 {
1707         return 0;
1708 }
1709
1710 static struct dt_object_operations osd_obj_ops = {
1711         .do_read_lock           = osd_read_lock,
1712         .do_write_lock          = osd_write_lock,
1713         .do_read_unlock         = osd_read_unlock,
1714         .do_write_unlock        = osd_write_unlock,
1715         .do_write_locked        = osd_write_locked,
1716         .do_attr_get            = osd_attr_get,
1717         .do_declare_attr_set    = osd_declare_attr_set,
1718         .do_attr_set            = osd_attr_set,
1719         .do_ah_init             = osd_ah_init,
1720         .do_declare_create      = osd_declare_create,
1721         .do_create              = osd_create,
1722         .do_declare_destroy     = osd_declare_destroy,
1723         .do_destroy             = osd_destroy,
1724         .do_index_try           = osd_index_try,
1725         .do_declare_ref_add     = osd_declare_ref_add,
1726         .do_ref_add             = osd_ref_add,
1727         .do_declare_ref_del     = osd_declare_ref_del,
1728         .do_ref_del             = osd_ref_del,
1729         .do_xattr_get           = osd_xattr_get,
1730         .do_declare_xattr_set   = osd_declare_xattr_set,
1731         .do_xattr_set           = osd_xattr_set,
1732         .do_declare_xattr_del   = osd_declare_xattr_del,
1733         .do_xattr_del           = osd_xattr_del,
1734         .do_xattr_list          = osd_xattr_list,
1735         .do_object_sync         = osd_object_sync,
1736         .do_invalidate          = osd_invalidate,
1737 };
1738
1739 static struct lu_object_operations osd_lu_obj_ops = {
1740         .loo_object_init        = osd_object_init,
1741         .loo_object_delete      = osd_object_delete,
1742         .loo_object_release     = osd_object_release,
1743         .loo_object_free        = osd_object_free,
1744         .loo_object_print       = osd_object_print,
1745         .loo_object_invariant   = osd_object_invariant,
1746 };
1747
1748 static int osd_otable_it_attr_get(const struct lu_env *env,
1749                                 struct dt_object *dt,
1750                                 struct lu_attr *attr)
1751 {
1752         attr->la_valid = 0;
1753         return 0;
1754 }
1755
1756 static struct dt_object_operations osd_obj_otable_it_ops = {
1757         .do_attr_get            = osd_otable_it_attr_get,
1758         .do_index_try           = osd_index_try,
1759 };