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