lustre/osd-ldiskfs/osd_oi.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) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  28  * Use is subject to license terms.
  29  *
  30  * Copyright (c) 2011, 2012, Intel Corporation.
  31  */
  32 /*
  33  * This file is part of Lustre, http://www.lustre.org/
  34  * Lustre is a trademark of Sun Microsystems, Inc.
  35  *
  36  * lustre/osd/osd_oi.c
  37  *
  38  * Object Index.
  39  *
  40  * Author: Nikita Danilov <nikita@clusterfs.com>
  41  */
  42
  43 #define DEBUG_SUBSYSTEM S_MDS
  44
  45 #include <linux/module.h>
  46
  47 /* LUSTRE_VERSION_CODE */
  48 #include <lustre_ver.h>
  49 /*
  50  * struct OBD_{ALLOC,FREE}*()
  51  * OBD_FAIL_CHECK
  52  */
  53 #include <obd.h>
  54 #include <obd_support.h>
  55
  56 /* fid_cpu_to_be() */
  57 #include <lustre_fid.h>
  58 #include <dt_object.h>
  59
  60 #include "osd_oi.h"
  61 /* osd_lookup(), struct osd_thread_info */
  62 #include "osd_internal.h"
  63 #include "osd_scrub.h"
  64
  65 static unsigned int osd_oi_count = OSD_OI_FID_NR;
  66 CFS_MODULE_PARM(osd_oi_count, "i", int, 0444,
  67                 "Number of Object Index containers to be created, "
  68                 "it's only valid for new filesystem.");
  69
  70 /** to serialize concurrent OI index initialization */
  71 static struct mutex oi_init_lock;
  72
  73 static struct dt_index_features oi_feat = {
  74         .dif_flags       = DT_IND_UPDATE,
  75         .dif_recsize_min = sizeof(struct osd_inode_id),
  76         .dif_recsize_max = sizeof(struct osd_inode_id),
  77         .dif_ptrsize     = 4
  78 };
  79
  80 #define OSD_OI_NAME_BASE        "oi.16"
  81
  82 static void osd_oi_table_put(struct osd_thread_info *info,
  83                              struct osd_oi **oi_table, unsigned oi_count)
  84 {
  85         struct iam_container *bag;
  86         int                   i;
  87
  88         for (i = 0; i < oi_count; i++) {
  89                 if (oi_table[i] == NULL)
  90                         continue;
  91
  92                 LASSERT(oi_table[i]->oi_inode != NULL);
  93
  94                 bag = &(oi_table[i]->oi_dir.od_container);
  95                 if (bag->ic_object == oi_table[i]->oi_inode)
  96                         iam_container_fini(bag);
  97                 iput(oi_table[i]->oi_inode);
  98                 oi_table[i]->oi_inode = NULL;
  99                 OBD_FREE_PTR(oi_table[i]);
 100                 oi_table[i] = NULL;
 101         }
 102 }
 103
 104 static int osd_oi_index_create_one(struct osd_thread_info *info,
 105                                    struct osd_device *osd, const char *name,
 106                                    struct dt_index_features *feat)
 107 {
 108         const struct lu_env             *env = info->oti_env;
 109         struct osd_inode_id             *id  = &info->oti_id;
 110         struct buffer_head              *bh;
 111         struct inode                    *inode;
 112         struct ldiskfs_dir_entry_2      *de;
 113         struct dentry                   *dentry;
 114         struct super_block              *sb  = osd_sb(osd);
 115         struct inode                    *dir = sb->s_root->d_inode;
 116         handle_t                        *jh;
 117         int                              rc;
 118
 119         dentry = osd_child_dentry_by_inode(env, dir, name, strlen(name));
 120         bh = osd_ldiskfs_find_entry(dir, dentry, &de, NULL);
 121         if (bh) {
 122                 osd_id_gen(id, le32_to_cpu(de->inode), OSD_OII_NOGEN);
 123                 brelse(bh);
 124                 inode = osd_iget(info, osd, id);
 125                 if (!IS_ERR(inode)) {
 126                         iput(inode);
 127                         inode = ERR_PTR(-EEXIST);
 128                 }
 129                 return PTR_ERR(inode);
 130         }
 131
 132         jh = ldiskfs_journal_start_sb(sb, 100);
 133         if (IS_ERR(jh))
 134                 return PTR_ERR(jh);
 135
 136         inode = ldiskfs_create_inode(jh, dir, (S_IFREG | S_IRUGO | S_IWUSR));
 137         if (IS_ERR(inode)) {
 138                 ldiskfs_journal_stop(jh);
 139                 return PTR_ERR(inode);
 140         }
 141
 142         if (feat->dif_flags & DT_IND_VARKEY)
 143                 rc = iam_lvar_create(inode, feat->dif_keysize_max,
 144                                      feat->dif_ptrsize, feat->dif_recsize_max,
 145                                      jh);
 146         else
 147                 rc = iam_lfix_create(inode, feat->dif_keysize_max,
 148                                      feat->dif_ptrsize, feat->dif_recsize_max,
 149                                      jh);
 150         dentry = osd_child_dentry_by_inode(env, dir, name, strlen(name));
 151         rc = osd_ldiskfs_add_entry(jh, dentry, inode, NULL);
 152         ldiskfs_journal_stop(jh);
 153         iput(inode);
 154         return rc;
 155 }
 156
 157 static struct inode *osd_oi_index_open(struct osd_thread_info *info,
 158                                        struct osd_device *osd,
 159                                        const char *name,
 160                                        struct dt_index_features *f,
 161                                        bool create)
 162 {
 163         struct dentry *dentry;
 164         struct inode  *inode;
 165         int            rc;
 166
 167         dentry = ll_lookup_one_len(name, osd_sb(osd)->s_root, strlen(name));
 168         if (IS_ERR(dentry))
 169                 return (void *) dentry;
 170
 171         if (dentry->d_inode) {
 172                 LASSERT(!is_bad_inode(dentry->d_inode));
 173                 inode = dentry->d_inode;
 174                 atomic_inc(&inode->i_count);
 175                 dput(dentry);
 176                 return inode;
 177         }
 178
 179         /* create */
 180         dput(dentry);
 181         shrink_dcache_parent(osd_sb(osd)->s_root);
 182         if (!create)
 183                 return ERR_PTR(-ENOENT);
 184
 185         rc = osd_oi_index_create_one(info, osd, name, f);
 186         if (rc)
 187                 return ERR_PTR(rc);
 188
 189         dentry = ll_lookup_one_len(name, osd_sb(osd)->s_root, strlen(name));
 190         if (IS_ERR(dentry))
 191                 return (void *) dentry;
 192
 193         if (dentry->d_inode) {
 194                 LASSERT(!is_bad_inode(dentry->d_inode));
 195                 inode = dentry->d_inode;
 196                 atomic_inc(&inode->i_count);
 197                 dput(dentry);
 198                 return inode;
 199         }
 200
 201         return ERR_PTR(-ENOENT);
 202 }
 203
 204 /**
 205  * Open an OI(Ojbect Index) container.
 206  *
 207  * \param       name    Name of OI container
 208  * \param       objp    Pointer of returned OI
 209  *
 210  * \retval      0       success
 211  * \retval      -ve     failure
 212  */
 213 static int osd_oi_open(struct osd_thread_info *info, struct osd_device *osd,
 214                        char *name, struct osd_oi **oi_slot, bool create)
 215 {
 216         struct osd_directory *dir;
 217         struct iam_container *bag;
 218         struct inode         *inode;
 219         struct osd_oi        *oi;
 220         int                   rc;
 221
 222         ENTRY;
 223
 224         oi_feat.dif_keysize_min = sizeof(struct lu_fid);
 225         oi_feat.dif_keysize_max = sizeof(struct lu_fid);
 226
 227         inode = osd_oi_index_open(info, osd, name, &oi_feat, create);
 228         if (IS_ERR(inode))
 229                 RETURN(PTR_ERR(inode));
 230
 231         ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NO_OI);
 232         OBD_ALLOC_PTR(oi);
 233         if (oi == NULL)
 234                 GOTO(out_inode, rc = -ENOMEM);
 235
 236         oi->oi_inode = inode;
 237         dir = &oi->oi_dir;
 238
 239         bag = &dir->od_container;
 240         rc = iam_container_init(bag, &dir->od_descr, inode);
 241         if (rc < 0)
 242                 GOTO(out_free, rc);
 243
 244         rc = iam_container_setup(bag);
 245         if (rc < 0)
 246                 GOTO(out_container, rc);
 247
 248         *oi_slot = oi;
 249         RETURN(0);
 250
 251 out_container:
 252         iam_container_fini(bag);
 253 out_free:
 254         OBD_FREE_PTR(oi);
 255 out_inode:
 256         iput(inode);
 257         return rc;
 258 }
 259
 260 /**
 261  * Open OI(Object Index) table.
 262  * If \a oi_count is zero, which means caller doesn't know how many OIs there
 263  * will be, this function can either return 0 for new filesystem, or number
 264  * of OIs on existed filesystem.
 265  *
 266  * If \a oi_count is non-zero, which means caller does know number of OIs on
 267  * filesystem, this function should return the exactly same number on
 268  * success, or error code in failure.
 269  *
 270  * \param     oi_count  Number of expected OI containers
 271  * \param     create    Create OIs if doesn't exist
 272  *
 273  * \retval    +ve       number of opened OI containers
 274  * \retval      0       no OI containers found
 275  * \retval    -ve       failure
 276  */
 277 static int
 278 osd_oi_table_open(struct osd_thread_info *info, struct osd_device *osd,
 279                   struct osd_oi **oi_table, unsigned oi_count, bool create)
 280 {
 281         struct scrub_file *sf = &osd->od_scrub.os_file;
 282         int                count = 0;
 283         int                rc = 0;
 284         int                i;
 285         ENTRY;
 286
 287         /* NB: oi_count != 0 means that we have already created/known all OIs
 288          * and have known exact number of OIs. */
 289         LASSERT(oi_count <= OSD_OI_FID_NR_MAX);
 290
 291         for (i = 0; i < (oi_count != 0 ? oi_count : OSD_OI_FID_NR_MAX); i++) {
 292                 char name[12];
 293
 294                 if (oi_table[i] != NULL) {
 295                         count++;
 296                         continue;
 297                 }
 298
 299                 sprintf(name, "%s.%d", OSD_OI_NAME_BASE, i);
 300                 rc = osd_oi_open(info, osd, name, &oi_table[i], create);
 301                 if (rc == 0) {
 302                         count++;
 303                         continue;
 304                 }
 305
 306                 if (rc == -ENOENT && create == false) {
 307                         if (oi_count == 0)
 308                                 return count;
 309
 310                         rc = 0;
 311                         ldiskfs_set_bit(i, sf->sf_oi_bitmap);
 312                         continue;
 313                 }
 314
 315                 CERROR("%.16s: can't open %s: rc = %d\n",
 316                        LDISKFS_SB(osd_sb(osd))->s_es->s_volume_name, name, rc);
 317                 if (oi_count > 0)
 318                         CERROR("%.16s: expect to open total %d OI files.\n",
 319                                LDISKFS_SB(osd_sb(osd))->s_es->s_volume_name,
 320                                oi_count);
 321                 break;
 322         }
 323
 324         if (rc < 0) {
 325                 osd_oi_table_put(info, oi_table, oi_count > 0 ? oi_count : i);
 326                 count = rc;
 327         }
 328
 329         RETURN(count);
 330 }
 331
 332 int osd_oi_init(struct osd_thread_info *info, struct osd_device *osd)
 333 {
 334         struct osd_scrub  *scrub = &osd->od_scrub;
 335         struct scrub_file *sf = &scrub->os_file;
 336         struct osd_oi    **oi;
 337         int                rc;
 338         ENTRY;
 339
 340         OBD_ALLOC(oi, sizeof(*oi) * OSD_OI_FID_NR_MAX);
 341         if (oi == NULL)
 342                 RETURN(-ENOMEM);
 343
 344         mutex_lock(&oi_init_lock);
 345         /* try to open existing multiple OIs first */
 346         rc = osd_oi_table_open(info, osd, oi, sf->sf_oi_count, false);
 347         if (rc < 0)
 348                 GOTO(out, rc);
 349
 350         if (rc > 0) {
 351                 if (rc == sf->sf_oi_count || sf->sf_oi_count == 0)
 352                         GOTO(out, rc);
 353
 354                 osd_scrub_file_reset(scrub,
 355                                      LDISKFS_SB(osd_sb(osd))->s_es->s_uuid,
 356                                      SF_RECREATED);
 357                 osd_oi_count = sf->sf_oi_count;
 358                 goto create;
 359         }
 360
 361         /* if previous failed then try found single OI from old filesystem */
 362         rc = osd_oi_open(info, osd, OSD_OI_NAME_BASE, &oi[0], false);
 363         if (rc == 0) { /* found single OI from old filesystem */
 364                 GOTO(out, rc = 1);
 365         } else if (rc != -ENOENT) {
 366                 CERROR("%.16s: can't open %s: rc = %d\n",
 367                        LDISKFS_SB(osd_sb(osd))->s_es->s_volume_name,
 368                        OSD_OI_NAME_BASE, rc);
 369                 GOTO(out, rc);
 370         }
 371
 372         if (sf->sf_oi_count > 0) {
 373                 int i;
 374
 375                 memset(sf->sf_oi_bitmap, 0, SCRUB_OI_BITMAP_SIZE);
 376                 for (i = 0; i < osd_oi_count; i++)
 377                         ldiskfs_set_bit(i, sf->sf_oi_bitmap);
 378                 osd_scrub_file_reset(scrub,
 379                                      LDISKFS_SB(osd_sb(osd))->s_es->s_uuid,
 380                                      SF_RECREATED);
 381         }
 382         sf->sf_oi_count = osd_oi_count;
 383
 384 create:
 385         rc = osd_scrub_file_store(scrub);
 386         if (rc < 0) {
 387                 osd_oi_table_put(info, oi, sf->sf_oi_count);
 388                 GOTO(out, rc);
 389         }
 390
 391         /* No OIs exist, new filesystem, create OI objects */
 392         rc = osd_oi_table_open(info, osd, oi, osd_oi_count, true);
 393         LASSERT(ergo(rc >= 0, rc == osd_oi_count));
 394
 395         GOTO(out, rc);
 396
 397 out:
 398         if (rc < 0) {
 399                 OBD_FREE(oi, sizeof(*oi) * OSD_OI_FID_NR_MAX);
 400         } else {
 401                 LASSERT((rc & (rc - 1)) == 0);
 402                 osd->od_oi_table = oi;
 403                 osd->od_oi_count = rc;
 404                 rc = 0;
 405         }
 406
 407         mutex_unlock(&oi_init_lock);
 408         return rc;
 409 }
 410
 411 void osd_oi_fini(struct osd_thread_info *info, struct osd_device *osd)
 412 {
 413         if (unlikely(osd->od_oi_table == NULL))
 414                 return;
 415
 416         osd_oi_table_put(info, osd->od_oi_table, osd->od_oi_count);
 417
 418         OBD_FREE(osd->od_oi_table,
 419                  sizeof(*(osd->od_oi_table)) * OSD_OI_FID_NR_MAX);
 420         osd->od_oi_table = NULL;
 421 }
 422
 423 static inline int fid_is_fs_root(const struct lu_fid *fid)
 424 {
 425         /* Map root inode to special local object FID */
 426         return (unlikely(fid_seq(fid) == FID_SEQ_LOCAL_FILE &&
 427                          fid_oid(fid) == OSD_FS_ROOT_OID));
 428 }
 429
 430 static int osd_oi_iam_lookup(struct osd_thread_info *oti,
 431                              struct osd_oi *oi, struct dt_rec *rec,
 432                              const struct dt_key *key)
 433 {
 434         struct iam_container  *bag;
 435         struct iam_iterator   *it = &oti->oti_idx_it;
 436         struct iam_path_descr *ipd;
 437         int                    rc;
 438         ENTRY;
 439
 440         LASSERT(oi);
 441         LASSERT(oi->oi_inode);
 442
 443         bag = &oi->oi_dir.od_container;
 444         ipd = osd_idx_ipd_get(oti->oti_env, bag);
 445         if (IS_ERR(ipd))
 446                 RETURN(-ENOMEM);
 447
 448         /* got ipd now we can start iterator. */
 449         iam_it_init(it, bag, 0, ipd);
 450
 451         rc = iam_it_get(it, (struct iam_key *)key);
 452         if (rc > 0)
 453                 iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)rec);
 454         iam_it_put(it);
 455         iam_it_fini(it);
 456         osd_ipd_put(oti->oti_env, bag, ipd);
 457
 458         LINVRNT(osd_invariant(obj));
 459
 460         RETURN(rc);
 461 }
 462
 463 int fid_is_on_ost(struct osd_thread_info *info, struct osd_device *osd,
 464                   const struct lu_fid *fid)
 465 {
 466         struct lu_seq_range *range = &info->oti_seq_range;
 467         int rc;
 468         ENTRY;
 469
 470         if (unlikely(fid_is_local_file(fid) || fid_is_igif(fid) ||
 471                      fid_is_llog(fid)))
 472                 RETURN(0);
 473
 474         if (fid_is_idif(fid) || fid_is_last_id(fid))
 475                 RETURN(1);
 476
 477         rc = osd_fld_lookup(info->oti_env, osd, fid, range);
 478         if (rc != 0) {
 479                 CERROR("%s: Can not lookup fld for "DFID"\n",
 480                        osd2lu_dev(osd)->ld_obd->obd_name, PFID(fid));
 481                 RETURN(rc);
 482         }
 483
 484         CDEBUG(D_INFO, "fid "DFID" range "DRANGE"\n", PFID(fid),
 485                PRANGE(range));
 486
 487         if (range->lsr_flags == LU_SEQ_RANGE_OST)
 488                 RETURN(1);
 489
 490         RETURN(0);
 491 }
 492
 493 int __osd_oi_lookup(struct osd_thread_info *info, struct osd_device *osd,
 494                     const struct lu_fid *fid, struct osd_inode_id *id)
 495 {
 496         struct lu_fid *oi_fid = &info->oti_fid2;
 497         int            rc;
 498
 499         fid_cpu_to_be(oi_fid, fid);
 500         rc = osd_oi_iam_lookup(info, osd_fid2oi(osd, fid), (struct dt_rec *)id,
 501                                (const struct dt_key *)oi_fid);
 502         if (rc > 0) {
 503                 osd_id_unpack(id, id);
 504                 rc = 0;
 505         } else if (rc == 0) {
 506                 rc = -ENOENT;
 507         }
 508         return rc;
 509 }
 510
 511 int osd_oi_lookup(struct osd_thread_info *info, struct osd_device *osd,
 512                   const struct lu_fid *fid, struct osd_inode_id *id,
 513                   bool check_fld)
 514 {
 515         if (unlikely(fid_is_last_id(fid)))
 516                 return osd_obj_spec_lookup(info, osd, fid, id);
 517
 518         if ((check_fld && fid_is_on_ost(info, osd, fid)) || fid_is_llog(fid))
 519                 return osd_obj_map_lookup(info, osd, fid, id);
 520
 521         if (fid_is_fs_root(fid)) {
 522                 osd_id_gen(id, osd_sb(osd)->s_root->d_inode->i_ino,
 523                            osd_sb(osd)->s_root->d_inode->i_generation);
 524                 return 0;
 525         }
 526
 527         if (unlikely(fid_is_acct(fid)))
 528                 return osd_acct_obj_lookup(info, osd, fid, id);
 529
 530         return __osd_oi_lookup(info, osd, fid, id);
 531 }
 532
 533 static int osd_oi_iam_refresh(struct osd_thread_info *oti, struct osd_oi *oi,
 534                              const struct dt_rec *rec, const struct dt_key *key,
 535                              struct thandle *th, bool insert)
 536 {
 537         struct iam_container    *bag;
 538         struct iam_path_descr   *ipd;
 539         struct osd_thandle      *oh;
 540         int                     rc;
 541         ENTRY;
 542
 543         LASSERT(oi);
 544         LASSERT(oi->oi_inode);
 545         ll_vfs_dq_init(oi->oi_inode);
 546
 547         bag = &oi->oi_dir.od_container;
 548         ipd = osd_idx_ipd_get(oti->oti_env, bag);
 549         if (unlikely(ipd == NULL))
 550                 RETURN(-ENOMEM);
 551
 552         oh = container_of0(th, struct osd_thandle, ot_super);
 553         LASSERT(oh->ot_handle != NULL);
 554         LASSERT(oh->ot_handle->h_transaction != NULL);
 555         if (insert)
 556                 rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
 557                                 (const struct iam_rec *)rec, ipd);
 558         else
 559                 rc = iam_update(oh->ot_handle, bag, (const struct iam_key *)key,
 560                                 (const struct iam_rec *)rec, ipd);
 561         osd_ipd_put(oti->oti_env, bag, ipd);
 562         LINVRNT(osd_invariant(obj));
 563         RETURN(rc);
 564 }
 565
 566 int osd_oi_insert(struct osd_thread_info *info, struct osd_device *osd,
 567                   const struct lu_fid *fid, const struct osd_inode_id *id,
 568                   struct thandle *th)
 569 {
 570         struct lu_fid       *oi_fid = &info->oti_fid2;
 571         struct osd_inode_id *oi_id  = &info->oti_id2;
 572         int                  rc     = 0;
 573
 574         if (unlikely(fid_is_last_id(fid)))
 575                 return osd_obj_spec_insert(info, osd, fid, id, th);
 576
 577         if (fid_is_on_ost(info, osd, fid) || fid_is_llog(fid))
 578                 return osd_obj_map_insert(info, osd, fid, id, th);
 579
 580         fid_cpu_to_be(oi_fid, fid);
 581         osd_id_pack(oi_id, id);
 582         rc = osd_oi_iam_refresh(info, osd_fid2oi(osd, fid),
 583                                (const struct dt_rec *)oi_id,
 584                                (const struct dt_key *)oi_fid, th, true);
 585         if (rc != 0) {
 586                 struct inode *inode;
 587                 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
 588
 589                 if (rc != -EEXIST)
 590                         return rc;
 591
 592                 rc = osd_oi_lookup(info, osd, fid, oi_id, false);
 593                 if (unlikely(rc != 0))
 594                         return rc;
 595
 596                 if (osd_id_eq(id, oi_id)) {
 597                         CERROR("%.16s: the FID "DFID" is there already:%u/%u\n",
 598                                LDISKFS_SB(osd_sb(osd))->s_es->s_volume_name,
 599                                PFID(fid), id->oii_ino, id->oii_gen);
 600                         return -EEXIST;
 601                 }
 602
 603                 /* Check whether the mapping for oi_id is valid or not. */
 604                 inode = osd_iget(info, osd, oi_id);
 605                 if (IS_ERR(inode)) {
 606                         rc = PTR_ERR(inode);
 607                         if (rc == -ENOENT || rc == -ESTALE)
 608                                 goto update;
 609                         return rc;
 610                 }
 611
 612                 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
 613                 iput(inode);
 614                 if (rc == -ENODATA)
 615                         goto update;
 616
 617                 if (rc != 0)
 618                         return rc;
 619
 620                 if (lu_fid_eq(fid, &lma->lma_self_fid)) {
 621                         CERROR("%.16s: the FID "DFID" is used by two objects: "
 622                                "%u/%u %u/%u\n",
 623                                LDISKFS_SB(osd_sb(osd))->s_es->s_volume_name,
 624                                PFID(fid), oi_id->oii_ino, oi_id->oii_gen,
 625                                id->oii_ino, id->oii_gen);
 626                         return -EEXIST;
 627                 }
 628
 629 update:
 630                 osd_id_pack(oi_id, id);
 631                 rc = osd_oi_iam_refresh(info, osd_fid2oi(osd, fid),
 632                                         (const struct dt_rec *)oi_id,
 633                                         (const struct dt_key *)oi_fid, th, false);
 634                 if (rc != 0)
 635                         return rc;
 636         }
 637
 638         if (unlikely(fid_seq(fid) == FID_SEQ_LOCAL_FILE))
 639                 rc = osd_obj_spec_insert(info, osd, fid, id, th);
 640         return rc;
 641 }
 642
 643 static int osd_oi_iam_delete(struct osd_thread_info *oti, struct osd_oi *oi,
 644                              const struct dt_key *key, struct thandle *handle)
 645 {
 646         struct iam_container  *bag;
 647         struct iam_path_descr *ipd;
 648         struct osd_thandle    *oh;
 649         int                    rc;
 650         ENTRY;
 651
 652         LASSERT(oi);
 653         LASSERT(oi->oi_inode);
 654         ll_vfs_dq_init(oi->oi_inode);
 655
 656         bag = &oi->oi_dir.od_container;
 657         ipd = osd_idx_ipd_get(oti->oti_env, bag);
 658         if (unlikely(ipd == NULL))
 659                 RETURN(-ENOMEM);
 660
 661         oh = container_of0(handle, struct osd_thandle, ot_super);
 662         LASSERT(oh->ot_handle != NULL);
 663         LASSERT(oh->ot_handle->h_transaction != NULL);
 664
 665         rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
 666         osd_ipd_put(oti->oti_env, bag, ipd);
 667         LINVRNT(osd_invariant(obj));
 668         RETURN(rc);
 669 }
 670
 671 int osd_oi_delete(struct osd_thread_info *info,
 672                   struct osd_device *osd, const struct lu_fid *fid,
 673                   struct thandle *th)
 674 {
 675         struct lu_fid *oi_fid = &info->oti_fid2;
 676
 677         if (fid_is_last_id(fid))
 678                 return 0;
 679
 680         if (fid_is_on_ost(info, osd, fid) || fid_is_llog(fid))
 681                 return osd_obj_map_delete(info, osd, fid, th);
 682
 683         fid_cpu_to_be(oi_fid, fid);
 684         return osd_oi_iam_delete(info, osd_fid2oi(osd, fid),
 685                                  (const struct dt_key *)oi_fid, th);
 686 }
 687
 688 int osd_oi_mod_init(void)
 689 {
 690         if (osd_oi_count == 0 || osd_oi_count > OSD_OI_FID_NR_MAX)
 691                 osd_oi_count = OSD_OI_FID_NR;
 692
 693         if ((osd_oi_count & (osd_oi_count - 1)) != 0) {
 694                 LCONSOLE_WARN("Round up oi_count %d to power2 %d\n",
 695                               osd_oi_count, size_roundup_power2(osd_oi_count));
 696                 osd_oi_count = size_roundup_power2(osd_oi_count);
 697         }
 698
 699         mutex_init(&oi_init_lock);
 700         return 0;
 701 }