git.sur5r.net Git - openldap/blob - servers/slapd/back-bdb/delete.c

   1 /* delete.c - bdb backend delete routine */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2000-2018 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16
  17 #include "portable.h"
  18
  19 #include <stdio.h>
  20 #include <ac/string.h>
  21
  22 #include "lutil.h"
  23 #include "back-bdb.h"
  24
  25 int
  26 bdb_delete( Operation *op, SlapReply *rs )
  27 {
  28         struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
  29         Entry   *matched = NULL;
  30         struct berval   pdn = {0, NULL};
  31         Entry   *e = NULL;
  32         Entry   *p = NULL;
  33         EntryInfo       *ei = NULL, *eip = NULL;
  34         int             manageDSAit = get_manageDSAit( op );
  35         AttributeDescription *children = slap_schema.si_ad_children;
  36         AttributeDescription *entry = slap_schema.si_ad_entry;
  37         DB_TXN          *ltid = NULL, *lt2;
  38         struct bdb_op_info opinfo = {{{ 0 }}};
  39         ID      eid;
  40
  41         DB_LOCK         lock, plock;
  42
  43         int             num_retries = 0;
  44
  45         int     rc;
  46
  47         LDAPControl **preread_ctrl = NULL;
  48         LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
  49         int num_ctrls = 0;
  50
  51         int     parent_is_glue = 0;
  52         int parent_is_leaf = 0;
  53
  54         Debug( LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(bdb_delete) ": %s\n",
  55                 op->o_req_dn.bv_val, 0, 0 );
  56
  57 #ifdef LDAP_X_TXN
  58         if( op->o_txnSpec && txn_preop( op, rs ))
  59                 return rs->sr_err;
  60 #endif
  61
  62         ctrls[num_ctrls] = 0;
  63
  64         /* allocate CSN */
  65         if ( BER_BVISNULL( &op->o_csn ) ) {
  66                 struct berval csn;
  67                 char csnbuf[LDAP_PVT_CSNSTR_BUFSIZE];
  68
  69                 csn.bv_val = csnbuf;
  70                 csn.bv_len = sizeof(csnbuf);
  71                 slap_get_csn( op, &csn, 1 );
  72         }
  73
  74         if( 0 ) {
  75 retry:  /* transaction retry */
  76                 if( e != NULL ) {
  77                         bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
  78                         e = NULL;
  79                 }
  80                 if( p != NULL ) {
  81                         bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
  82                         p = NULL;
  83                 }
  84                 Debug( LDAP_DEBUG_TRACE,
  85                         "==> " LDAP_XSTRING(bdb_delete) ": retrying...\n",
  86                         0, 0, 0 );
  87                 rs->sr_err = TXN_ABORT( ltid );
  88                 ltid = NULL;
  89                 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
  90                 opinfo.boi_oe.oe_key = NULL;
  91                 op->o_do_not_cache = opinfo.boi_acl_cache;
  92                 if( rs->sr_err != 0 ) {
  93                         rs->sr_err = LDAP_OTHER;
  94                         rs->sr_text = "internal error";
  95                         goto return_results;
  96                 }
  97                 if ( op->o_abandon ) {
  98                         rs->sr_err = SLAPD_ABANDON;
  99                         goto return_results;
 100                 }
 101                 parent_is_glue = 0;
 102                 parent_is_leaf = 0;
 103                 bdb_trans_backoff( ++num_retries );
 104         }
 105
 106         /* begin transaction */
 107         {
 108                 int tflags = bdb->bi_db_opflags;
 109                 if ( get_lazyCommit( op ))
 110                         tflags |= DB_TXN_NOSYNC;
 111                 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid, tflags );
 112         }
 113         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_delete) ": txn1 id: %x\n",
 114                 ltid->id(ltid), 0, 0 );
 115         rs->sr_text = NULL;
 116         if( rs->sr_err != 0 ) {
 117                 Debug( LDAP_DEBUG_TRACE,
 118                         LDAP_XSTRING(bdb_delete) ": txn_begin failed: "
 119                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 120                 rs->sr_err = LDAP_OTHER;
 121                 rs->sr_text = "internal error";
 122                 goto return_results;
 123         }
 124
 125         opinfo.boi_oe.oe_key = bdb;
 126         opinfo.boi_txn = ltid;
 127         opinfo.boi_err = 0;
 128         opinfo.boi_acl_cache = op->o_do_not_cache;
 129         LDAP_SLIST_INSERT_HEAD( &op->o_extra, &opinfo.boi_oe, oe_next );
 130
 131         if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
 132                 dnParent( &op->o_req_ndn, &pdn );
 133         }
 134
 135         /* get entry */
 136         rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
 137                 &lock );
 138
 139         switch( rs->sr_err ) {
 140         case 0:
 141         case DB_NOTFOUND:
 142                 break;
 143         case DB_LOCK_DEADLOCK:
 144         case DB_LOCK_NOTGRANTED:
 145                 goto retry;
 146         case LDAP_BUSY:
 147                 rs->sr_text = "ldap server busy";
 148                 goto return_results;
 149         default:
 150                 rs->sr_err = LDAP_OTHER;
 151                 rs->sr_text = "internal error";
 152                 goto return_results;
 153         }
 154
 155         if ( rs->sr_err == 0 ) {
 156                 e = ei->bei_e;
 157                 eip = ei->bei_parent;
 158         } else {
 159                 matched = ei->bei_e;
 160         }
 161
 162         /* FIXME : dn2entry() should return non-glue entry */
 163         if ( e == NULL || ( !manageDSAit && is_entry_glue( e ))) {
 164                 Debug( LDAP_DEBUG_ARGS,
 165                         "<=- " LDAP_XSTRING(bdb_delete) ": no such object %s\n",
 166                         op->o_req_dn.bv_val, 0, 0);
 167
 168                 if ( matched != NULL ) {
 169                         rs->sr_matched = ch_strdup( matched->e_dn );
 170                         rs->sr_ref = is_entry_referral( matched )
 171                                 ? get_entry_referrals( op, matched )
 172                                 : NULL;
 173                         bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, matched);
 174                         matched = NULL;
 175
 176                 } else {
 177                         rs->sr_ref = referral_rewrite( default_referral, NULL,
 178                                         &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 179                 }
 180
 181                 rs->sr_err = LDAP_REFERRAL;
 182                 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
 183                 goto return_results;
 184         }
 185
 186         rc = bdb_cache_find_id( op, ltid, eip->bei_id, &eip, 0, &plock );
 187         switch( rc ) {
 188         case DB_LOCK_DEADLOCK:
 189         case DB_LOCK_NOTGRANTED:
 190                 goto retry;
 191         case 0:
 192         case DB_NOTFOUND:
 193                 break;
 194         default:
 195                 rs->sr_err = LDAP_OTHER;
 196                 rs->sr_text = "internal error";
 197                 goto return_results;
 198         }
 199         if ( eip ) p = eip->bei_e;
 200
 201         if ( pdn.bv_len != 0 ) {
 202                 if( p == NULL || !bvmatch( &pdn, &p->e_nname )) {
 203                         Debug( LDAP_DEBUG_TRACE,
 204                                 "<=- " LDAP_XSTRING(bdb_delete) ": parent "
 205                                 "does not exist\n", 0, 0, 0 );
 206                         rs->sr_err = LDAP_OTHER;
 207                         rs->sr_text = "could not locate parent of entry";
 208                         goto return_results;
 209                 }
 210
 211                 /* check parent for "children" acl */
 212                 rs->sr_err = access_allowed( op, p,
 213                         children, NULL, ACL_WDEL, NULL );
 214
 215                 if ( !rs->sr_err  ) {
 216                         switch( opinfo.boi_err ) {
 217                         case DB_LOCK_DEADLOCK:
 218                         case DB_LOCK_NOTGRANTED:
 219                                 goto retry;
 220                         }
 221
 222                         Debug( LDAP_DEBUG_TRACE,
 223                                 "<=- " LDAP_XSTRING(bdb_delete) ": no write "
 224                                 "access to parent\n", 0, 0, 0 );
 225                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 226                         rs->sr_text = "no write access to parent";
 227                         goto return_results;
 228                 }
 229
 230         } else {
 231                 /* no parent, must be root to delete */
 232                 if( ! be_isroot( op ) ) {
 233                         if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
 234                                 || be_shadow_update( op ) ) {
 235                                 p = (Entry *)&slap_entry_root;
 236
 237                                 /* check parent for "children" acl */
 238                                 rs->sr_err = access_allowed( op, p,
 239                                         children, NULL, ACL_WDEL, NULL );
 240
 241                                 p = NULL;
 242
 243                                 if ( !rs->sr_err  ) {
 244                                         switch( opinfo.boi_err ) {
 245                                         case DB_LOCK_DEADLOCK:
 246                                         case DB_LOCK_NOTGRANTED:
 247                                                 goto retry;
 248                                         }
 249
 250                                         Debug( LDAP_DEBUG_TRACE,
 251                                                 "<=- " LDAP_XSTRING(bdb_delete)
 252                                                 ": no access to parent\n",
 253                                                 0, 0, 0 );
 254                                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 255                                         rs->sr_text = "no write access to parent";
 256                                         goto return_results;
 257                                 }
 258
 259                         } else {
 260                                 Debug( LDAP_DEBUG_TRACE,
 261                                         "<=- " LDAP_XSTRING(bdb_delete)
 262                                         ": no parent and not root\n", 0, 0, 0 );
 263                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 264                                 goto return_results;
 265                         }
 266                 }
 267         }
 268
 269         if ( get_assert( op ) &&
 270                 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
 271         {
 272                 rs->sr_err = LDAP_ASSERTION_FAILED;
 273                 goto return_results;
 274         }
 275
 276         rs->sr_err = access_allowed( op, e,
 277                 entry, NULL, ACL_WDEL, NULL );
 278
 279         if ( !rs->sr_err  ) {
 280                 switch( opinfo.boi_err ) {
 281                 case DB_LOCK_DEADLOCK:
 282                 case DB_LOCK_NOTGRANTED:
 283                         goto retry;
 284                 }
 285
 286                 Debug( LDAP_DEBUG_TRACE,
 287                         "<=- " LDAP_XSTRING(bdb_delete) ": no write access "
 288                         "to entry\n", 0, 0, 0 );
 289                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 290                 rs->sr_text = "no write access to entry";
 291                 goto return_results;
 292         }
 293
 294         if ( !manageDSAit && is_entry_referral( e ) ) {
 295                 /* entry is a referral, don't allow delete */
 296                 rs->sr_ref = get_entry_referrals( op, e );
 297
 298                 Debug( LDAP_DEBUG_TRACE,
 299                         LDAP_XSTRING(bdb_delete) ": entry is referral\n",
 300                         0, 0, 0 );
 301
 302                 rs->sr_err = LDAP_REFERRAL;
 303                 rs->sr_matched = ch_strdup( e->e_name.bv_val );
 304                 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
 305                 goto return_results;
 306         }
 307
 308         /* pre-read */
 309         if( op->o_preread ) {
 310                 if( preread_ctrl == NULL ) {
 311                         preread_ctrl = &ctrls[num_ctrls++];
 312                         ctrls[num_ctrls] = NULL;
 313                 }
 314                 if( slap_read_controls( op, rs, e,
 315                         &slap_pre_read_bv, preread_ctrl ) )
 316                 {
 317                         Debug( LDAP_DEBUG_TRACE,
 318                                 "<=- " LDAP_XSTRING(bdb_delete) ": pre-read "
 319                                 "failed!\n", 0, 0, 0 );
 320                         if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
 321                                 /* FIXME: is it correct to abort
 322                                  * operation if control fails? */
 323                                 goto return_results;
 324                         }
 325                 }
 326         }
 327
 328         /* nested transaction */
 329         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2,
 330                 bdb->bi_db_opflags );
 331         rs->sr_text = NULL;
 332         if( rs->sr_err != 0 ) {
 333                 Debug( LDAP_DEBUG_TRACE,
 334                         LDAP_XSTRING(bdb_delete) ": txn_begin(2) failed: "
 335                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 336                 rs->sr_err = LDAP_OTHER;
 337                 rs->sr_text = "internal error";
 338                 goto return_results;
 339         }
 340         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_delete) ": txn2 id: %x\n",
 341                 lt2->id(lt2), 0, 0 );
 342
 343         BDB_LOG_PRINTF( bdb->bi_dbenv, lt2, "slapd Starting delete %s(%d)",
 344                 e->e_nname.bv_val, e->e_id );
 345
 346         /* Can't do it if we have kids */
 347         rs->sr_err = bdb_cache_children( op, lt2, e );
 348         if( rs->sr_err != DB_NOTFOUND ) {
 349                 switch( rs->sr_err ) {
 350                 case DB_LOCK_DEADLOCK:
 351                 case DB_LOCK_NOTGRANTED:
 352                         goto retry;
 353                 case 0:
 354                         Debug(LDAP_DEBUG_ARGS,
 355                                 "<=- " LDAP_XSTRING(bdb_delete)
 356                                 ": non-leaf %s\n",
 357                                 op->o_req_dn.bv_val, 0, 0);
 358                         rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
 359                         rs->sr_text = "subordinate objects must be deleted first";
 360                         break;
 361                 default:
 362                         Debug(LDAP_DEBUG_ARGS,
 363                                 "<=- " LDAP_XSTRING(bdb_delete)
 364                                 ": has_children failed: %s (%d)\n",
 365                                 db_strerror(rs->sr_err), rs->sr_err, 0 );
 366                         rs->sr_err = LDAP_OTHER;
 367                         rs->sr_text = "internal error";
 368                 }
 369                 goto return_results;
 370         }
 371
 372         /* delete from dn2id */
 373         rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
 374         if ( rs->sr_err != 0 ) {
 375                 Debug(LDAP_DEBUG_TRACE,
 376                         "<=- " LDAP_XSTRING(bdb_delete) ": dn2id failed: "
 377                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 378                 switch( rs->sr_err ) {
 379                 case DB_LOCK_DEADLOCK:
 380                 case DB_LOCK_NOTGRANTED:
 381                         goto retry;
 382                 }
 383                 rs->sr_text = "DN index delete failed";
 384                 rs->sr_err = LDAP_OTHER;
 385                 goto return_results;
 386         }
 387
 388         /* delete indices for old attributes */
 389         rs->sr_err = bdb_index_entry_del( op, lt2, e );
 390         if ( rs->sr_err != LDAP_SUCCESS ) {
 391                 Debug(LDAP_DEBUG_TRACE,
 392                         "<=- " LDAP_XSTRING(bdb_delete) ": index failed: "
 393                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 394                 switch( rs->sr_err ) {
 395                 case DB_LOCK_DEADLOCK:
 396                 case DB_LOCK_NOTGRANTED:
 397                         goto retry;
 398                 }
 399                 rs->sr_text = "entry index delete failed";
 400                 rs->sr_err = LDAP_OTHER;
 401                 goto return_results;
 402         }
 403
 404         /* fixup delete CSN */
 405         if ( !SLAP_SHADOW( op->o_bd )) {
 406                 struct berval vals[2];
 407
 408                 assert( !BER_BVISNULL( &op->o_csn ) );
 409                 vals[0] = op->o_csn;
 410                 BER_BVZERO( &vals[1] );
 411                 rs->sr_err = bdb_index_values( op, lt2, slap_schema.si_ad_entryCSN,
 412                         vals, 0, SLAP_INDEX_ADD_OP );
 413         if ( rs->sr_err != LDAP_SUCCESS ) {
 414                         switch( rs->sr_err ) {
 415                         case DB_LOCK_DEADLOCK:
 416                         case DB_LOCK_NOTGRANTED:
 417                                 goto retry;
 418                         }
 419                         rs->sr_text = "entryCSN index update failed";
 420                         rs->sr_err = LDAP_OTHER;
 421                         goto return_results;
 422                 }
 423         }
 424
 425         /* delete from id2entry */
 426         rs->sr_err = bdb_id2entry_delete( op->o_bd, lt2, e );
 427         if ( rs->sr_err != 0 ) {
 428                 Debug( LDAP_DEBUG_TRACE,
 429                         "<=- " LDAP_XSTRING(bdb_delete) ": id2entry failed: "
 430                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 431                 switch( rs->sr_err ) {
 432                 case DB_LOCK_DEADLOCK:
 433                 case DB_LOCK_NOTGRANTED:
 434                         goto retry;
 435                 }
 436                 rs->sr_text = "entry delete failed";
 437                 rs->sr_err = LDAP_OTHER;
 438                 goto return_results;
 439         }
 440
 441         if ( pdn.bv_len != 0 ) {
 442                 parent_is_glue = is_entry_glue(p);
 443                 rs->sr_err = bdb_cache_children( op, lt2, p );
 444                 if ( rs->sr_err != DB_NOTFOUND ) {
 445                         switch( rs->sr_err ) {
 446                         case DB_LOCK_DEADLOCK:
 447                         case DB_LOCK_NOTGRANTED:
 448                                 goto retry;
 449                         case 0:
 450                                 break;
 451                         default:
 452                                 Debug(LDAP_DEBUG_ARGS,
 453                                         "<=- " LDAP_XSTRING(bdb_delete)
 454                                         ": has_children failed: %s (%d)\n",
 455                                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 456                                 rs->sr_err = LDAP_OTHER;
 457                                 rs->sr_text = "internal error";
 458                                 goto return_results;
 459                         }
 460                         parent_is_leaf = 1;
 461                 }
 462                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 463                 p = NULL;
 464         }
 465
 466         BDB_LOG_PRINTF( bdb->bi_dbenv, lt2, "slapd Commit1 delete %s(%d)",
 467                 e->e_nname.bv_val, e->e_id );
 468
 469         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 470                 rs->sr_err = LDAP_OTHER;
 471                 rs->sr_text = "txn_commit(2) failed";
 472                 goto return_results;
 473         }
 474
 475         eid = e->e_id;
 476
 477 #if 0   /* Do we want to reclaim deleted IDs? */
 478         ldap_pvt_thread_mutex_lock( &bdb->bi_lastid_mutex );
 479         if ( e->e_id == bdb->bi_lastid ) {
 480                 bdb_last_id( op->o_bd, ltid );
 481         }
 482         ldap_pvt_thread_mutex_unlock( &bdb->bi_lastid_mutex );
 483 #endif
 484
 485         if( op->o_noop ) {
 486                 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
 487                         rs->sr_text = "txn_abort (no-op) failed";
 488                 } else {
 489                         rs->sr_err = LDAP_X_NO_OPERATION;
 490                         ltid = NULL;
 491                         goto return_results;
 492                 }
 493         } else {
 494
 495                 BDB_LOG_PRINTF( bdb->bi_dbenv, ltid, "slapd Cache delete %s(%d)",
 496                         e->e_nname.bv_val, e->e_id );
 497
 498                 rc = bdb_cache_delete( bdb, e, ltid, &lock );
 499                 switch( rc ) {
 500                 case DB_LOCK_DEADLOCK:
 501                 case DB_LOCK_NOTGRANTED:
 502                         goto retry;
 503                 }
 504
 505                 rs->sr_err = TXN_COMMIT( ltid, 0 );
 506         }
 507         ltid = NULL;
 508         LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
 509         opinfo.boi_oe.oe_key = NULL;
 510
 511         BDB_LOG_PRINTF( bdb->bi_dbenv, NULL, "slapd Committed delete %s(%d)",
 512                 e->e_nname.bv_val, e->e_id );
 513
 514         if( rs->sr_err != 0 ) {
 515                 Debug( LDAP_DEBUG_TRACE,
 516                         LDAP_XSTRING(bdb_delete) ": txn_%s failed: %s (%d)\n",
 517                         op->o_noop ? "abort (no-op)" : "commit",
 518                         db_strerror(rs->sr_err), rs->sr_err );
 519                 rs->sr_err = LDAP_OTHER;
 520                 rs->sr_text = "commit failed";
 521
 522                 goto return_results;
 523         }
 524
 525         Debug( LDAP_DEBUG_TRACE,
 526                 LDAP_XSTRING(bdb_delete) ": deleted%s id=%08lx dn=\"%s\"\n",
 527                 op->o_noop ? " (no-op)" : "",
 528                 eid, op->o_req_dn.bv_val );
 529         rs->sr_err = LDAP_SUCCESS;
 530         rs->sr_text = NULL;
 531         if( num_ctrls ) rs->sr_ctrls = ctrls;
 532
 533 return_results:
 534         if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
 535                 op->o_delete_glue_parent = 1;
 536         }
 537
 538         if ( p )
 539                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 540
 541         /* free entry */
 542         if( e != NULL ) {
 543                 if ( rs->sr_err == LDAP_SUCCESS ) {
 544                         /* Free the EntryInfo and the Entry */
 545                         bdb_cache_entryinfo_lock( BEI(e) );
 546                         bdb_cache_delete_cleanup( &bdb->bi_cache, BEI(e) );
 547                 } else {
 548                         bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
 549                 }
 550         }
 551
 552         if( ltid != NULL ) {
 553                 TXN_ABORT( ltid );
 554         }
 555         if ( opinfo.boi_oe.oe_key ) {
 556                 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
 557         }
 558
 559         send_ldap_result( op, rs );
 560         slap_graduate_commit_csn( op );
 561
 562         if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
 563                 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 564                 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
 565         }
 566
 567         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp_kbyte ) {
 568                 TXN_CHECKPOINT( bdb->bi_dbenv,
 569                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 570         }
 571         return rs->sr_err;
 572 }