lustre/quota/quota_master.c

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
   4  * GPL HEADER START
   5  *
   6  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 only,
  10  * as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License version 2 for more details (a copy is included
  16  * in the LICENSE file that accompanied this code).
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * version 2 along with this program; If not, see
  20  * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
  21  *
  22  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  23  * CA 95054 USA or visit www.sun.com if you need additional information or
  24  * have any questions.
  25  *
  26  * GPL HEADER END
  27  */
  28 /*
  29  * Copyright  2008 Sun Microsystems, Inc. All rights reserved
  30  * Use is subject to license terms.
  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/quota/quota_master.c
  37  *
  38  * Lustre Quota Master request handler
  39  *
  40  * Author: Niu YaWei <niu@clusterfs.com>
  41  */
  42
  43 #ifndef EXPORT_SYMTAB
  44 # define EXPORT_SYMTAB
  45 #endif
  46
  47 #define DEBUG_SUBSYSTEM S_LQUOTA
  48
  49 #include <linux/version.h>
  50 #include <linux/fs.h>
  51 #include <asm/unistd.h>
  52 #include <linux/slab.h>
  53 #include <linux/quotaops.h>
  54 #include <linux/module.h>
  55 #include <linux/init.h>
  56 #include <linux/quota.h>
  57
  58 #include <obd_class.h>
  59 #include <lustre_quota.h>
  60 #include <lustre_fsfilt.h>
  61 #include <lustre_mds.h>
  62
  63 #include "quota_internal.h"
  64
  65 #ifdef HAVE_QUOTA_SUPPORT
  66
  67 /* lock ordering: mds->mds_qonoff_sem > dquot->dq_sem */
  68 static struct list_head lustre_dquot_hash[NR_DQHASH];
  69 static spinlock_t dquot_hash_lock = SPIN_LOCK_UNLOCKED;
  70
  71 cfs_mem_cache_t *lustre_dquot_cachep;
  72
  73 int lustre_dquot_init(void)
  74 {
  75         int i;
  76         ENTRY;
  77
  78         LASSERT(lustre_dquot_cachep == NULL);
  79         lustre_dquot_cachep = cfs_mem_cache_create("lustre_dquot_cache",
  80                                                    sizeof(struct lustre_dquot),
  81                                                    0, 0);
  82         if (!lustre_dquot_cachep)
  83                 return (-ENOMEM);
  84
  85         for (i = 0; i < NR_DQHASH; i++) {
  86                 CFS_INIT_LIST_HEAD(lustre_dquot_hash + i);
  87         }
  88         RETURN(0);
  89 }
  90
  91 void lustre_dquot_exit(void)
  92 {
  93         int i;
  94         ENTRY;
  95         /* FIXME cleanup work ?? */
  96
  97         for (i = 0; i < NR_DQHASH; i++) {
  98                 LASSERT(list_empty(lustre_dquot_hash + i));
  99         }
 100         if (lustre_dquot_cachep) {
 101                 int rc;
 102                 rc = cfs_mem_cache_destroy(lustre_dquot_cachep);
 103                 LASSERTF(rc == 0,"couldn't destroy lustre_dquot_cachep slab\n");
 104                 lustre_dquot_cachep = NULL;
 105         }
 106         EXIT;
 107 }
 108
 109 static inline int
 110 dquot_hashfn(struct lustre_quota_info *info, unsigned int id, int type)
 111              __attribute__((__const__));
 112
 113 static inline int
 114 dquot_hashfn(struct lustre_quota_info *info, unsigned int id, int type)
 115 {
 116         unsigned long tmp = ((unsigned long)info >> L1_CACHE_SHIFT) ^ id;
 117         tmp = (tmp * (MAXQUOTAS - type)) % NR_DQHASH;
 118         return tmp;
 119 }
 120
 121 /* caller must hold dquot_hash_lock */
 122 static struct lustre_dquot *find_dquot(int hashent,
 123                                        struct lustre_quota_info *lqi, qid_t id,
 124                                        int type)
 125 {
 126         struct lustre_dquot *dquot;
 127         ENTRY;
 128
 129         LASSERT_SPIN_LOCKED(&dquot_hash_lock);
 130         list_for_each_entry(dquot, &lustre_dquot_hash[hashent], dq_hash) {
 131                 if (dquot->dq_info == lqi &&
 132                     dquot->dq_id == id && dquot->dq_type == type)
 133                         RETURN(dquot);
 134         }
 135         RETURN(NULL);
 136 }
 137
 138 static struct lustre_dquot *alloc_dquot(struct lustre_quota_info *lqi,
 139                                         qid_t id, int type)
 140 {
 141         struct lustre_dquot *dquot = NULL;
 142         ENTRY;
 143
 144         OBD_SLAB_ALLOC_PTR_GFP(dquot, lustre_dquot_cachep, CFS_ALLOC_IO);
 145         if (dquot == NULL)
 146                 RETURN(NULL);
 147
 148         CFS_INIT_LIST_HEAD(&dquot->dq_hash);
 149         init_mutex_locked(&dquot->dq_sem);
 150         dquot->dq_refcnt = 1;
 151         dquot->dq_info = lqi;
 152         dquot->dq_id = id;
 153         dquot->dq_type = type;
 154         dquot->dq_status = DQ_STATUS_AVAIL;
 155
 156         RETURN(dquot);
 157 }
 158
 159 static void free_dquot(struct lustre_dquot *dquot)
 160 {
 161         OBD_SLAB_FREE(dquot, lustre_dquot_cachep, sizeof(*dquot));
 162 }
 163
 164 static void insert_dquot_nolock(struct lustre_dquot *dquot)
 165 {
 166         struct list_head *head = lustre_dquot_hash +
 167             dquot_hashfn(dquot->dq_info, dquot->dq_id, dquot->dq_type);
 168         LASSERT(list_empty(&dquot->dq_hash));
 169         list_add(&dquot->dq_hash, head);
 170 }
 171
 172 static void remove_dquot_nolock(struct lustre_dquot *dquot)
 173 {
 174         LASSERT(!list_empty(&dquot->dq_hash));
 175         list_del_init(&dquot->dq_hash);
 176 }
 177
 178 static void lustre_dqput(struct lustre_dquot *dquot)
 179 {
 180         ENTRY;
 181         spin_lock(&dquot_hash_lock);
 182         LASSERT(dquot->dq_refcnt);
 183         dquot->dq_refcnt--;
 184         if (!dquot->dq_refcnt) {
 185                 remove_dquot_nolock(dquot);
 186                 free_dquot(dquot);
 187         }
 188         spin_unlock(&dquot_hash_lock);
 189         EXIT;
 190 }
 191
 192 static struct lustre_dquot *lustre_dqget(struct obd_device *obd,
 193                                          struct lustre_quota_info *lqi,
 194                                          qid_t id, int type)
 195 {
 196         unsigned int hashent = dquot_hashfn(lqi, id, type);
 197         struct lustre_dquot *dquot, *empty;
 198         ENTRY;
 199
 200         if ((empty = alloc_dquot(lqi, id, type)) == NULL)
 201                 RETURN(ERR_PTR(-ENOMEM));
 202
 203         spin_lock(&dquot_hash_lock);
 204         if ((dquot = find_dquot(hashent, lqi, id, type)) != NULL) {
 205                 dquot->dq_refcnt++;
 206                 spin_unlock(&dquot_hash_lock);
 207                 free_dquot(empty);
 208         } else {
 209                 int rc;
 210
 211                 dquot = empty;
 212                 insert_dquot_nolock(dquot);
 213                 spin_unlock(&dquot_hash_lock);
 214
 215                 rc = fsfilt_dquot(obd, dquot, QFILE_RD_DQUOT);
 216                 up(&dquot->dq_sem);
 217                 if (rc) {
 218                         CERROR("can't read dquot from admin quotafile! "
 219                                "(rc:%d)\n", rc);
 220                         lustre_dqput(dquot);
 221                         RETURN(ERR_PTR(rc));
 222                 }
 223
 224         }
 225
 226         LASSERT(dquot);
 227         RETURN(dquot);
 228 }
 229
 230 static void init_oqaq(struct quota_adjust_qunit *oqaq,
 231                       struct lustre_quota_ctxt *qctxt,
 232                       qid_t id, int type)
 233 {
 234         struct lustre_qunit_size *lqs = NULL;
 235
 236         oqaq->qaq_id = id;
 237         oqaq->qaq_flags = type;
 238         quota_search_lqs(NULL, oqaq, qctxt, &lqs);
 239         if (lqs) {
 240                 spin_lock(&lqs->lqs_lock);
 241                 oqaq->qaq_bunit_sz = lqs->lqs_bunit_sz;
 242                 oqaq->qaq_iunit_sz = lqs->lqs_iunit_sz;
 243                 oqaq->qaq_flags    = lqs->lqs_flags;
 244                 spin_unlock(&lqs->lqs_lock);
 245                 lqs_putref(lqs);
 246         } else {
 247                 CDEBUG(D_QUOTA, "Can't find the lustre qunit size!\n");
 248                 oqaq->qaq_bunit_sz = qctxt->lqc_bunit_sz;
 249                 oqaq->qaq_iunit_sz = qctxt->lqc_iunit_sz;
 250         }
 251 }
 252
 253 int dqacq_adjust_qunit_sz(struct obd_device *obd, qid_t id, int type,
 254                           __u32 is_blk)
 255 {
 256         struct mds_obd *mds = &obd->u.mds;
 257         struct lustre_quota_ctxt *qctxt = &mds->mds_obt.obt_qctxt;
 258         struct obd_device *lov_mds_obd = class_exp2obd(mds->mds_osc_exp);
 259         struct lov_obd *lov = &lov_mds_obd->u.lov;
 260         __u32 ost_num = lov->desc.ld_tgt_count, mdt_num = 1;
 261         struct quota_adjust_qunit *oqaq = NULL;
 262         unsigned int qid[MAXQUOTAS] = { 0, 0 };
 263         struct lustre_quota_info *info = &mds->mds_quota_info;
 264         struct lustre_dquot *dquot = NULL;
 265         int adjust_res = 0;
 266         int rc = 0;
 267         ENTRY;
 268
 269         LASSERT(mds);
 270         dquot = lustre_dqget(obd, info, id, type);
 271         if (IS_ERR(dquot))
 272                 RETURN(PTR_ERR(dquot));
 273
 274         OBD_ALLOC_PTR(oqaq);
 275         if (!oqaq)
 276                 GOTO(out, rc = -ENOMEM);
 277
 278         down(&dquot->dq_sem);
 279         init_oqaq(oqaq, qctxt, id, type);
 280
 281         rc = dquot_create_oqaq(qctxt, dquot, ost_num, mdt_num,
 282                                is_blk ? LQUOTA_FLAGS_ADJBLK :
 283                                LQUOTA_FLAGS_ADJINO, oqaq);
 284
 285         if (rc < 0) {
 286                 CDEBUG(D_ERROR, "create oqaq failed! (rc:%d)\n", rc);
 287                 GOTO(out_sem, rc);
 288         }
 289         QAQ_DEBUG(oqaq, "show oqaq.\n")
 290
 291         if (!QAQ_IS_ADJBLK(oqaq) && !QAQ_IS_ADJINO(oqaq))
 292                 GOTO(out_sem, rc);
 293
 294         /* adjust the mds slave qunit size */
 295         adjust_res = quota_adjust_slave_lqs(oqaq, qctxt);
 296         if (adjust_res <= 0) {
 297                 if (adjust_res < 0) {
 298                         rc = adjust_res;
 299                         CDEBUG(D_ERROR, "adjust mds slave's qunit size failed! \
 300                                (rc:%d)\n", rc);
 301                 } else {
 302                         CDEBUG(D_QUOTA, "qunit doesn't need to be adjusted.\n");
 303                 }
 304                 GOTO(out_sem, rc);
 305         }
 306
 307         if (type)
 308                 qid[GRPQUOTA] = dquot->dq_id;
 309         else
 310                 qid[USRQUOTA] = dquot->dq_id;
 311
 312         up(&dquot->dq_sem);
 313
 314         rc = qctxt_adjust_qunit(obd, qctxt, qid, is_blk, 0, NULL);
 315         if (rc == -EDQUOT || rc == -EBUSY) {
 316                 CDEBUG(D_QUOTA, "rc: %d.\n", rc);
 317                 rc = 0;
 318         }
 319         if (rc) {
 320                 CDEBUG(D_ERROR, "mds fail to adjust file quota! \
 321                                (rc:%d)\n", rc);
 322                 GOTO(out, rc);
 323         }
 324
 325         /* only when block qunit is reduced, boardcast to osts */
 326         if ((adjust_res & LQS_BLK_DECREASE) && QAQ_IS_ADJBLK(oqaq))
 327                 rc = obd_quota_adjust_qunit(mds->mds_osc_exp, oqaq, qctxt);
 328
 329 out:
 330         lustre_dqput(dquot);
 331         if (oqaq)
 332                 OBD_FREE_PTR(oqaq);
 333
 334         RETURN(rc);
 335 out_sem:
 336         up(&dquot->dq_sem);
 337         goto out;
 338 }
 339
 340 int dqacq_handler(struct obd_device *obd, struct qunit_data *qdata, int opc)
 341 {
 342         struct mds_obd *mds = &obd->u.mds;
 343         struct lustre_quota_ctxt *qctxt = &mds->mds_obt.obt_qctxt;
 344         struct lustre_quota_info *info = &mds->mds_quota_info;
 345         struct lustre_dquot *dquot = NULL;
 346         __u64 *usage = NULL;
 347         __u64 hlimit = 0, slimit = 0;
 348         time_t *time = NULL;
 349         unsigned int grace = 0;
 350         struct lustre_qunit_size *lqs = NULL;
 351         int rc = 0;
 352         ENTRY;
 353
 354         if (OBD_FAIL_CHECK(OBD_FAIL_OBD_DQACQ))
 355                 RETURN(-EIO);
 356
 357         dquot = lustre_dqget(obd, info, qdata->qd_id, QDATA_IS_GRP(qdata));
 358         if (IS_ERR(dquot))
 359                 RETURN(PTR_ERR(dquot));
 360
 361         DQUOT_DEBUG(dquot, "get dquot in dqacq_handler\n");
 362         QINFO_DEBUG(dquot->dq_info, "get dquot in dqadq_handler\n");
 363
 364         down(&mds->mds_qonoff_sem);
 365         down(&dquot->dq_sem);
 366
 367         if (dquot->dq_status & DQ_STATUS_RECOVERY) {
 368                 DQUOT_DEBUG(dquot, "this dquot is under recovering.\n");
 369                 GOTO(out, rc = -EBUSY);
 370         }
 371
 372         if (QDATA_IS_BLK(qdata)) {
 373                 grace = info->qi_info[QDATA_IS_GRP(qdata)].dqi_bgrace;
 374                 usage = &dquot->dq_dqb.dqb_curspace;
 375                 hlimit = dquot->dq_dqb.dqb_bhardlimit;
 376                 slimit = dquot->dq_dqb.dqb_bsoftlimit;
 377                 time = &dquot->dq_dqb.dqb_btime;
 378         } else {
 379                 grace = info->qi_info[QDATA_IS_GRP(qdata)].dqi_igrace;
 380                 usage = (__u64 *) & dquot->dq_dqb.dqb_curinodes;
 381                 hlimit = dquot->dq_dqb.dqb_ihardlimit;
 382                 slimit = dquot->dq_dqb.dqb_isoftlimit;
 383                 time = &dquot->dq_dqb.dqb_itime;
 384         }
 385
 386         /* if the quota limit in admin quotafile is zero, we just inform
 387          * slave to clear quota limit with zero qd_count */
 388         if (hlimit == 0 && slimit == 0) {
 389                 qdata->qd_count = 0;
 390                 GOTO(out, rc);
 391         }
 392
 393         switch (opc) {
 394         case QUOTA_DQACQ:
 395                 if (hlimit &&
 396                     QUSG(*usage + qdata->qd_count, QDATA_IS_BLK(qdata)) > hlimit)
 397                 {
 398                         if (QDATA_IS_CHANGE_QS(qdata) &&
 399                             QUSG(*usage, QDATA_IS_BLK(qdata)) < hlimit)
 400                                 qdata->qd_count = (hlimit -
 401                                         QUSG(*usage, QDATA_IS_BLK(qdata)))
 402                                         * (QDATA_IS_BLK(qdata) ?
 403                                            QUOTABLOCK_SIZE : 1);
 404                         else
 405                                 GOTO(out, rc = -EDQUOT);
 406                 }
 407
 408                 if (slimit &&
 409                     QUSG(*usage + qdata->qd_count, QDATA_IS_BLK(qdata)) > slimit) {
 410                         if (*time && cfs_time_current_sec() >= *time)
 411                                 GOTO(out, rc = -EDQUOT);
 412                         else if (!*time)
 413                                 *time = cfs_time_current_sec() + grace;
 414                 }
 415
 416                 *usage += qdata->qd_count;
 417                 break;
 418         case QUOTA_DQREL:
 419                 /* The usage in administrative file might be incorrect before
 420                  * recovery done */
 421                 if (*usage - qdata->qd_count < 0)
 422                         *usage = 0;
 423                 else
 424                         *usage -= qdata->qd_count;
 425
 426                 /* (usage <= soft limit) but not (usage < soft limit) */
 427                 if (!slimit || QUSG(*usage, QDATA_IS_BLK(qdata)) <= slimit)
 428                         *time = 0;
 429                 break;
 430         default:
 431                 LBUG();
 432         }
 433
 434         rc = fsfilt_dquot(obd, dquot, QFILE_WR_DQUOT);
 435         EXIT;
 436 out:
 437         up(&dquot->dq_sem);
 438         up(&mds->mds_qonoff_sem);
 439         lustre_dqput(dquot);
 440         if (rc != -EDQUOT)
 441                 dqacq_adjust_qunit_sz(obd, qdata->qd_id, QDATA_IS_GRP(qdata),
 442                                       QDATA_IS_BLK(qdata));
 443
 444         quota_search_lqs(qdata, NULL, qctxt, &lqs);
 445         if (QDATA_IS_BLK(qdata)) {
 446                 if (!lqs) {
 447                         CDEBUG(D_INFO, "Can't find the lustre qunit size!\n");
 448                         qdata->qd_qunit  = qctxt->lqc_bunit_sz;
 449                 } else {
 450                         spin_lock(&lqs->lqs_lock);
 451                         qdata->qd_qunit  = lqs->lqs_bunit_sz;
 452                         spin_unlock(&lqs->lqs_lock);
 453                 }
 454                 QDATA_SET_ADJBLK(qdata);
 455         } else {
 456                 if (!lqs) {
 457                         CDEBUG(D_INFO, "Can't find the lustre qunit size!\n");
 458                         qdata->qd_qunit  = qctxt->lqc_iunit_sz;
 459                 } else {
 460                         spin_lock(&lqs->lqs_lock);
 461                         qdata->qd_qunit  = lqs->lqs_iunit_sz;
 462                         spin_unlock(&lqs->lqs_lock);
 463                 }
 464                 QDATA_SET_ADJINO(qdata);
 465         }
 466
 467         QDATA_DEBUG(qdata, "alloc/release qunit in dqacq_handler\n");
 468         if (lqs)
 469                 lqs_putref(lqs);
 470
 471         return rc;
 472 }
 473
 474 int mds_quota_adjust(struct obd_device *obd, const unsigned int qcids[],
 475                      const unsigned int qpids[], int rc, int opc)
 476 {
 477         struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
 478         int rc2 = 0;
 479         ENTRY;
 480
 481         if (rc && rc != -EDQUOT && rc != ENOLCK)
 482                 RETURN(0);
 483
 484         switch (opc) {
 485         case FSFILT_OP_SETATTR:
 486                 /* release file quota on original owner */
 487                 rc2 |= qctxt_adjust_qunit(obd, qctxt, qpids, 0, 0, NULL);
 488                 /* release block quota on original owner */
 489                 rc2 |= qctxt_adjust_qunit(obd, qctxt, qpids, 1, 0, NULL);
 490                 /* acquire file quota on current owner */
 491                 rc2 |= qctxt_adjust_qunit(obd, qctxt, qcids, 0, 0, NULL);
 492                 /* acquire block quota on current owner */
 493                 rc2 |= qctxt_adjust_qunit(obd, qctxt, qcids, 1, 0, NULL);
 494                 break;
 495         case FSFILT_OP_UNLINK_PARTIAL_CHILD:
 496                 /* release file quota on child */
 497                 rc2 |= qctxt_adjust_qunit(obd, qctxt, qcids, 0, 0, NULL);
 498                 /* rlease block quota on child */
 499                 rc2 |= qctxt_adjust_qunit(obd, qctxt, qcids, 1, 0, NULL);
 500                 break;
 501         case FSFILT_OP_CREATE_PARTIAL_CHILD:
 502                 /* acquire file quota on child */
 503                 rc2 |= qctxt_adjust_qunit(obd, qctxt, qcids, 0, 0, NULL);
 504                 /* acquire block quota on child */
 505                 rc2 |= qctxt_adjust_qunit(obd, qctxt, qcids, 1, 0, NULL);
 506                 break;
 507         case FSFILT_OP_LINK:
 508                 /* acquire block quota on parent */
 509                 rc2 |= qctxt_adjust_qunit(obd, qctxt, qpids, 1, 0, NULL);
 510                 break;
 511         case FSFILT_OP_UNLINK:
 512                 /* release block quota on parent */
 513                 rc2 |= qctxt_adjust_qunit(obd, qctxt, qpids, 1, 0, NULL);
 514                 /* release file quota on child */
 515                 rc2 |= qctxt_adjust_qunit(obd, qctxt, qcids, 0, 0, NULL);
 516                 if (qpids[0] != qcids[0] || qpids[1] != qcids[1])
 517                         /* release block quota on child */
 518                         rc2 |= qctxt_adjust_qunit(obd, qctxt, qcids, 1, 0,
 519                                                   NULL);
 520                 break;
 521         case FSFILT_OP_UNLINK_PARTIAL_PARENT:
 522                 /* release block quota on parent */
 523                 rc2 |= qctxt_adjust_qunit(obd, qctxt, qpids, 1, 0, NULL);
 524                 break;
 525         case FSFILT_OP_CREATE:
 526                 /* acquire block quota on parent */
 527                 rc2 |= qctxt_adjust_qunit(obd, qctxt, qpids, 1, 0, NULL);
 528                 /* acquire file quota on child */
 529                 rc2 |= qctxt_adjust_qunit(obd, qctxt, qcids, 0, 0, NULL);
 530                 if (qpids[0] != qcids[0] || qpids[1] != qcids[1])
 531                         /* acquire block quota on child */
 532                         rc2 |= qctxt_adjust_qunit(obd, qctxt, qcids, 1, 0,
 533                                                   NULL);
 534                 break;
 535         default:
 536                 LBUG();
 537                 break;
 538         }
 539
 540         if (rc2)
 541                 CDEBUG(rc2 == QUOTA_REQ_RETURNED ? D_QUOTA: D_ERROR,
 542                        "mds adjust qunit %ssuccessfully! (opc:%d rc:%d)\n",
 543                        rc2 == QUOTA_REQ_RETURNED ? "" : "un", opc, rc2);
 544         RETURN(0);
 545 }
 546
 547 int filter_quota_adjust(struct obd_device *obd, const unsigned int qcids[],
 548                         const unsigned int qpids[], int rc, int opc)
 549 {
 550         struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
 551         int rc2 = 0;
 552         ENTRY;
 553
 554         if (rc && rc != -EDQUOT)
 555                 RETURN(0);
 556
 557         switch (opc) {
 558         case FSFILT_OP_SETATTR:
 559                 /* acquire/release block quota on original & current owner */
 560                 rc = qctxt_adjust_qunit(obd, qctxt, qcids, 1, 0, NULL);
 561                 rc2 = qctxt_adjust_qunit(obd, qctxt, qpids, 1, 0, NULL);
 562                 break;
 563         case FSFILT_OP_UNLINK:
 564                 /* release block quota on this owner */
 565         case FSFILT_OP_CREATE: /* XXX for write operation on obdfilter */
 566                 /* acquire block quota on this owner */
 567                 rc = qctxt_adjust_qunit(obd, qctxt, qcids, 1, 0, NULL);
 568                 break;
 569         default:
 570                 LBUG();
 571                 break;
 572         }
 573
 574         if (rc || rc2) {
 575                 if (!rc)
 576                         rc = rc2;
 577                 CDEBUG(rc == QUOTA_REQ_RETURNED ? D_QUOTA: D_ERROR,
 578                        "filter adjust qunit %ssuccessfully! (opc:%d rc%d)\n",
 579                        QUOTA_REQ_RETURNED ? "" : "un", opc, rc);
 580         }
 581
 582         RETURN(0);
 583 }
 584
 585 static const char prefix[] = "OBJECTS/";
 586
 587 int mds_quota_invalidate(struct obd_device *obd, struct obd_quotactl *oqctl)
 588 {
 589         struct mds_obd *mds = &obd->u.mds;
 590         struct lustre_quota_info *qinfo = &mds->mds_quota_info;
 591         int rc = 0, i;
 592         char *quotafile[] = LUSTRE_ADMIN_QUOTAFILES_V2;
 593         char name[64];
 594         struct lvfs_run_ctxt saved;
 595
 596         LASSERT(qinfo->qi_version == LUSTRE_QUOTA_V2);
 597
 598         if (oqctl->qc_type != USRQUOTA &&
 599             oqctl->qc_type != GRPQUOTA &&
 600             oqctl->qc_type != UGQUOTA)
 601                 return -EINVAL;
 602
 603         push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 604
 605         down(&mds->mds_qonoff_sem);
 606
 607         for (i = 0; i < MAXQUOTAS; i++) {
 608                 struct file *fp;
 609
 610                 if (!Q_TYPESET(oqctl, i))
 611                         continue;
 612
 613                 /* quota file has been opened ? */
 614                 if (qinfo->qi_files[i]) {
 615                         rc = -EBUSY;
 616                         goto out;
 617                 }
 618
 619                 LASSERT(strlen(quotafile[i]) + sizeof(prefix) <= sizeof(name));
 620                 sprintf(name, "%s%s", prefix, quotafile[i]);
 621
 622                 fp = filp_open(name, O_CREAT | O_TRUNC | O_RDWR, 0644);
 623                 if (IS_ERR(fp)) {
 624                         rc = PTR_ERR(fp);
 625                         CERROR("error invalidating admin quotafile %s (rc:%d)\n",
 626                                name, rc);
 627                 }
 628                 else
 629                         filp_close(fp, 0);
 630         }
 631
 632 out:
 633         up(&mds->mds_qonoff_sem);
 634
 635         pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 636
 637         return rc;
 638 }
 639
 640 int mds_quota_finvalidate(struct obd_device *obd, struct obd_quotactl *oqctl)
 641 {
 642         struct mds_obd *mds = &obd->u.mds;
 643         int rc;
 644         struct lvfs_run_ctxt saved;
 645
 646         if (oqctl->qc_type != USRQUOTA &&
 647             oqctl->qc_type != GRPQUOTA &&
 648             oqctl->qc_type != UGQUOTA)
 649                 RETURN(-EINVAL);
 650
 651         push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 652         down(&mds->mds_qonoff_sem);
 653
 654         oqctl->qc_cmd = Q_FINVALIDATE;
 655         rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, oqctl);
 656         if (!rc)
 657                 rc = obd_quotactl(mds->mds_osc_exp, oqctl);
 658
 659         up(&mds->mds_qonoff_sem);
 660         pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 661
 662         return rc;
 663 }
 664
 665 int init_admin_quotafiles(struct obd_device *obd, struct obd_quotactl *oqctl)
 666 {
 667         struct mds_obd *mds = &obd->u.mds;
 668         struct lustre_quota_info *qinfo = &mds->mds_quota_info;
 669         const char *quotafile[] = LUSTRE_ADMIN_QUOTAFILES_V2;
 670         struct lvfs_run_ctxt saved;
 671         char name[64];
 672         int i, rc = 0;
 673         ENTRY;
 674
 675         LASSERT(qinfo->qi_version == LUSTRE_QUOTA_V2);
 676
 677         push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 678
 679         down(&mds->mds_qonoff_sem);
 680
 681         for (i = 0; i < MAXQUOTAS && !rc; i++) {
 682                 struct file *fp;
 683
 684                 if (!Q_TYPESET(oqctl, i))
 685                         continue;
 686
 687                 /* quota file has been opened ? */
 688                 if (qinfo->qi_files[i]) {
 689                         CWARN("init %s admin quotafile while quota on.\n",
 690                               i == USRQUOTA ? "user" : "group");
 691                         continue;
 692                 }
 693
 694                 LASSERT(strlen(quotafile[i]) + sizeof(prefix) <= sizeof(name));
 695                 sprintf(name, "%s%s", prefix, quotafile[i]);
 696
 697                 /* check if quota file exists and is correct */
 698                 fp = filp_open(name, O_RDONLY, 0);
 699                 if (!IS_ERR(fp)) {
 700                         /* irregular file is not the right place for quota */
 701                         if (!S_ISREG(fp->f_dentry->d_inode->i_mode)) {
 702                                 CERROR("admin quota file %s is not "
 703                                        "regular!", name);
 704                                 filp_close(fp, 0);
 705                                 rc = -EINVAL;
 706                                 break;
 707                         }
 708                         qinfo->qi_files[i] = fp;
 709                         rc = fsfilt_quotainfo(obd, qinfo, i, QFILE_CHK);
 710                         qinfo->qi_files[i] = 0;
 711                         filp_close(fp, 0);
 712                 }
 713                 else
 714                         rc = PTR_ERR(fp);
 715
 716                 if (!rc)
 717                         continue;
 718
 719                 /* -EINVAL may be returned by quotainfo for bad quota file */
 720                 if (rc != -ENOENT && rc != -EINVAL) {
 721                         CERROR("error opening old quota file %s (%d)\n",
 722                                name, rc);
 723                         break;
 724                 }
 725
 726                 CDEBUG(D_INFO, "%s new quota file %s\n", name,
 727                        rc == -ENOENT ? "creating" : "overwriting");
 728
 729                 /* create quota file overwriting old if needed */
 730                 fp = filp_open(name, O_CREAT | O_TRUNC | O_RDWR, 0644);
 731                 if (IS_ERR(fp)) {
 732                         rc = PTR_ERR(fp);
 733                         CERROR("error creating admin quotafile %s (rc:%d)\n",
 734                                name, rc);
 735                         break;
 736                 }
 737
 738                 qinfo->qi_files[i] = fp;
 739
 740                 rc = fsfilt_quotainfo(obd, qinfo, i, QFILE_INIT_INFO);
 741                 if (rc)
 742                         CERROR("error init %s admin quotafile! (rc:%d)\n",
 743                                i == USRQUOTA ? "user" : "group", rc);
 744
 745                 filp_close(fp, 0);
 746                 qinfo->qi_files[i] = NULL;
 747         }
 748         up(&mds->mds_qonoff_sem);
 749
 750         pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 751         RETURN(rc);
 752 }
 753
 754 static int close_quota_files(struct obd_quotactl *oqctl,
 755                              struct lustre_quota_info *qinfo)
 756 {
 757         int i, rc = 0;
 758         ENTRY;
 759
 760         for (i = 0; i < MAXQUOTAS; i++) {
 761                 if (!Q_TYPESET(oqctl, i))
 762                         continue;
 763                 if (qinfo->qi_files[i] == NULL) {
 764                         rc = -ESRCH;
 765                         continue;
 766                 }
 767                 filp_close(qinfo->qi_files[i], 0);
 768                 qinfo->qi_files[i] = NULL;
 769         }
 770         RETURN(rc);
 771 }
 772
 773 int mds_admin_quota_on(struct obd_device *obd, struct obd_quotactl *oqctl)
 774 {
 775         struct mds_obd *mds = &obd->u.mds;
 776         struct lustre_quota_info *qinfo = &mds->mds_quota_info;
 777         const char *quotafile[] = LUSTRE_ADMIN_QUOTAFILES_V2;
 778         char name[64];
 779         int i, rc = 0;
 780         ENTRY;
 781
 782         LASSERT(qinfo->qi_version == LUSTRE_QUOTA_V2);
 783
 784         /* open admin quota files and read quotafile info */
 785         for (i = 0; i < MAXQUOTAS; i++) {
 786                 struct file *fp;
 787
 788                 if (!Q_TYPESET(oqctl, i))
 789                         continue;
 790
 791                 LASSERT(strlen(quotafile[i])
 792                         + sizeof(prefix) <= sizeof(name));
 793                 sprintf(name, "%s%s", prefix, quotafile[i]);
 794
 795                 if (qinfo->qi_files[i] != NULL) {
 796                         rc = -EBUSY;
 797                         break;
 798                 }
 799
 800                 fp = filp_open(name, O_RDWR, 0);
 801                 if (IS_ERR(fp) || !S_ISREG(fp->f_dentry->d_inode->i_mode)) {
 802                         rc = IS_ERR(fp) ? PTR_ERR(fp) : -EINVAL;
 803                         CERROR("error open/create %s! (rc:%d)\n", name, rc);
 804                         break;
 805                 }
 806                 qinfo->qi_files[i] = fp;
 807
 808                 rc = fsfilt_quotainfo(obd, qinfo, i, QFILE_CHK);
 809                 if (rc) {
 810                         CERROR("invalid quota file %s! (rc:%d)\n", name, rc);
 811                         break;
 812                 }
 813
 814                 rc = fsfilt_quotainfo(obd, qinfo, i, QFILE_RD_INFO);
 815                 if (rc) {
 816                         CERROR("error read quotainfo of %s! (rc:%d)\n", name,
 817                                rc);
 818                         break;
 819                 }
 820         }
 821
 822         if (rc && rc != -EBUSY)
 823                 close_quota_files(oqctl, qinfo);
 824
 825         RETURN(rc);
 826 }
 827
 828 int mds_admin_quota_off(struct obd_device *obd,
 829                         struct obd_quotactl *oqctl)
 830 {
 831         struct mds_obd *mds = &obd->u.mds;
 832         struct lustre_quota_info *qinfo = &mds->mds_quota_info;
 833         int rc;
 834         ENTRY;
 835
 836         /* close admin quota files */
 837         rc = close_quota_files(oqctl, qinfo);
 838         RETURN(rc);
 839 }
 840
 841 int mds_quota_on(struct obd_device *obd, struct obd_quotactl *oqctl)
 842 {
 843         struct mds_obd *mds = &obd->u.mds;
 844         struct obd_device_target *obt = &obd->u.obt;
 845         struct lvfs_run_ctxt saved;
 846         int rc;
 847         ENTRY;
 848
 849         if (oqctl->qc_type != USRQUOTA &&
 850             oqctl->qc_type != GRPQUOTA &&
 851             oqctl->qc_type != UGQUOTA)
 852                 RETURN(-EINVAL);
 853
 854         if (!atomic_dec_and_test(&obt->obt_quotachecking)) {
 855                 CDEBUG(D_INFO, "other people are doing quotacheck\n");
 856                 atomic_inc(&obt->obt_quotachecking);
 857                 RETURN(-EBUSY);
 858         }
 859
 860         down(&mds->mds_qonoff_sem);
 861         push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 862         rc = mds_admin_quota_on(obd, oqctl);
 863         if (rc)
 864                 GOTO(out, rc);
 865
 866         rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, oqctl);
 867         if (!rc)
 868                 obt->obt_qctxt.lqc_flags |= UGQUOTA2LQC(oqctl->qc_type);
 869         else
 870                 GOTO(out, rc);
 871
 872         rc = obd_quotactl(mds->mds_osc_exp, oqctl);
 873
 874 out:
 875         pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 876         up(&mds->mds_qonoff_sem);
 877         atomic_inc(&obt->obt_quotachecking);
 878         RETURN(rc);
 879 }
 880
 881 int mds_quota_off(struct obd_device *obd, struct obd_quotactl *oqctl)
 882 {
 883         struct mds_obd *mds = &obd->u.mds;
 884         struct obd_device_target *obt = &obd->u.obt;
 885         struct lvfs_run_ctxt saved;
 886         int rc, rc2;
 887         ENTRY;
 888
 889         if (oqctl->qc_type != USRQUOTA &&
 890             oqctl->qc_type != GRPQUOTA &&
 891             oqctl->qc_type != UGQUOTA)
 892                 RETURN(-EINVAL);
 893
 894         if (!atomic_dec_and_test(&obt->obt_quotachecking)) {
 895                 CDEBUG(D_INFO, "other people are doing quotacheck\n");
 896                 atomic_inc(&obt->obt_quotachecking);
 897                 RETURN(-EBUSY);
 898         }
 899
 900         down(&mds->mds_qonoff_sem);
 901         /* close admin quota files */
 902         push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 903         mds_admin_quota_off(obd, oqctl);
 904
 905         rc = obd_quotactl(mds->mds_osc_exp, oqctl);
 906         rc2 = fsfilt_quotactl(obd, obd->u.obt.obt_sb, oqctl);
 907         if (!rc2)
 908                 obt->obt_qctxt.lqc_flags &= ~UGQUOTA2LQC(oqctl->qc_type);
 909
 910         pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 911         up(&mds->mds_qonoff_sem);
 912         atomic_inc(&obt->obt_quotachecking);
 913
 914         RETURN(rc ?: rc2);
 915 }
 916
 917 int mds_set_dqinfo(struct obd_device *obd, struct obd_quotactl *oqctl)
 918 {
 919         struct mds_obd *mds = &obd->u.mds;
 920         struct lustre_quota_info *qinfo = &mds->mds_quota_info;
 921         struct obd_dqinfo *dqinfo = &oqctl->qc_dqinfo;
 922         int rc;
 923         ENTRY;
 924
 925         if (oqctl->qc_type != USRQUOTA &&
 926             oqctl->qc_type != GRPQUOTA)
 927                 RETURN(-EINVAL);
 928
 929         down(&mds->mds_qonoff_sem);
 930         if (qinfo->qi_files[oqctl->qc_type] == NULL) {
 931                 rc = -ESRCH;
 932                 goto out;
 933         }
 934
 935         qinfo->qi_info[oqctl->qc_type].dqi_bgrace = dqinfo->dqi_bgrace;
 936         qinfo->qi_info[oqctl->qc_type].dqi_igrace = dqinfo->dqi_igrace;
 937         qinfo->qi_info[oqctl->qc_type].dqi_flags = dqinfo->dqi_flags;
 938
 939         rc = fsfilt_quotainfo(obd, qinfo, oqctl->qc_type, QFILE_WR_INFO);
 940
 941 out:
 942         up(&mds->mds_qonoff_sem);
 943         RETURN(rc);
 944 }
 945
 946 int mds_get_dqinfo(struct obd_device *obd, struct obd_quotactl *oqctl)
 947 {
 948         struct mds_obd *mds = &obd->u.mds;
 949         struct lustre_quota_info *qinfo = &mds->mds_quota_info;
 950         struct obd_dqinfo *dqinfo = &oqctl->qc_dqinfo;
 951         int rc = 0;
 952         ENTRY;
 953
 954         if (oqctl->qc_type != USRQUOTA &&
 955             oqctl->qc_type != GRPQUOTA)
 956                 RETURN(-EINVAL);
 957
 958         down(&mds->mds_qonoff_sem);
 959         if (qinfo->qi_files[oqctl->qc_type] == NULL) {
 960                 rc = -ESRCH;
 961                 goto out;
 962         }
 963
 964         dqinfo->dqi_bgrace = qinfo->qi_info[oqctl->qc_type].dqi_bgrace;
 965         dqinfo->dqi_igrace = qinfo->qi_info[oqctl->qc_type].dqi_igrace;
 966         dqinfo->dqi_flags = qinfo->qi_info[oqctl->qc_type].dqi_flags;
 967
 968 out:
 969         up(&mds->mds_qonoff_sem);
 970         RETURN(rc);
 971 }
 972
 973 int dquot_create_oqaq(struct lustre_quota_ctxt *qctxt,
 974                       struct lustre_dquot *dquot, __u32 ost_num, __u32 mdt_num,
 975                       int type, struct quota_adjust_qunit *oqaq)
 976 {
 977         __u64 bunit_curr_o, iunit_curr_o;
 978         unsigned long shrink_qunit_limit = qctxt->lqc_cqs_boundary_factor;
 979         unsigned long cqs_factor = qctxt->lqc_cqs_qs_factor;
 980         __u64 blimit = dquot->dq_dqb.dqb_bhardlimit ?
 981                 dquot->dq_dqb.dqb_bhardlimit : dquot->dq_dqb.dqb_bsoftlimit;
 982         __u64 ilimit = dquot->dq_dqb.dqb_ihardlimit ?
 983                 dquot->dq_dqb.dqb_ihardlimit : dquot->dq_dqb.dqb_isoftlimit;
 984         int rc = 0;
 985         ENTRY;
 986
 987         if (!dquot || !oqaq)
 988                 RETURN(-EINVAL);
 989         LASSERT_SEM_LOCKED(&dquot->dq_sem);
 990         LASSERT(oqaq->qaq_iunit_sz);
 991         LASSERT(oqaq->qaq_bunit_sz);
 992
 993         /* don't change qunit size */
 994         if (!qctxt->lqc_switch_qs)
 995                 RETURN(rc);
 996
 997         bunit_curr_o = oqaq->qaq_bunit_sz;
 998         iunit_curr_o = oqaq->qaq_iunit_sz;
 999
1000         if (dquot->dq_type == GRPQUOTA)
1001                 QAQ_SET_GRP(oqaq);
1002
1003         if ((type & LQUOTA_FLAGS_ADJBLK) && blimit) {
1004                 __u64 b_limitation =
1005                         oqaq->qaq_bunit_sz * (ost_num + 1) * shrink_qunit_limit;
1006                 /* enlarge block qunit size */
1007                 while (blimit >
1008                        QUSG(dquot->dq_dqb.dqb_curspace + 2 * b_limitation, 1)) {
1009                         oqaq->qaq_bunit_sz =
1010                                 QUSG(oqaq->qaq_bunit_sz * cqs_factor, 1)
1011                                 << QUOTABLOCK_BITS;
1012                         b_limitation = oqaq->qaq_bunit_sz * (ost_num + 1) *
1013                                 shrink_qunit_limit;
1014                 }
1015
1016                 if (oqaq->qaq_bunit_sz > qctxt->lqc_bunit_sz)
1017                         oqaq->qaq_bunit_sz = qctxt->lqc_bunit_sz;
1018
1019                 /* shrink block qunit size */
1020                 while (blimit <
1021                        QUSG(dquot->dq_dqb.dqb_curspace + b_limitation, 1)) {
1022                         do_div(oqaq->qaq_bunit_sz , cqs_factor);
1023                         oqaq->qaq_bunit_sz = QUSG(oqaq->qaq_bunit_sz, 1) <<
1024                                 QUOTABLOCK_BITS;
1025                         b_limitation = oqaq->qaq_bunit_sz * (ost_num + 1) *
1026                                 shrink_qunit_limit;
1027                         if (oqaq->qaq_bunit_sz <  qctxt->lqc_cqs_least_bunit)
1028                                 break;
1029                 }
1030
1031                 if (oqaq->qaq_bunit_sz < qctxt->lqc_cqs_least_bunit)
1032                         oqaq->qaq_bunit_sz = qctxt->lqc_cqs_least_bunit;
1033
1034                 if (bunit_curr_o != oqaq->qaq_bunit_sz)
1035                         QAQ_SET_ADJBLK(oqaq);
1036
1037         }
1038
1039         if ((type & LQUOTA_FLAGS_ADJINO) && ilimit) {
1040                 __u64 i_limitation =
1041                         oqaq->qaq_iunit_sz * mdt_num * shrink_qunit_limit;
1042                 /* enlarge file qunit size */
1043                 while (ilimit > dquot->dq_dqb.dqb_curinodes
1044                        + 2 * i_limitation) {
1045                         oqaq->qaq_iunit_sz = oqaq->qaq_iunit_sz * cqs_factor;
1046                         i_limitation = oqaq->qaq_iunit_sz * mdt_num *
1047                                 shrink_qunit_limit;
1048                 }
1049
1050                 if (oqaq->qaq_iunit_sz > qctxt->lqc_iunit_sz)
1051                         oqaq->qaq_iunit_sz = qctxt->lqc_iunit_sz;
1052
1053                 /* shrink file qunit size */
1054                 while (ilimit < dquot->dq_dqb.dqb_curinodes
1055                        + i_limitation) {
1056                         do_div(oqaq->qaq_iunit_sz, cqs_factor);
1057                         i_limitation = oqaq->qaq_iunit_sz * mdt_num *
1058                                        shrink_qunit_limit;
1059                         if (oqaq->qaq_iunit_sz < qctxt->lqc_cqs_least_iunit)
1060                                 break;
1061                 }
1062
1063                 if (oqaq->qaq_iunit_sz < qctxt->lqc_cqs_least_iunit)
1064                         oqaq->qaq_iunit_sz = qctxt->lqc_cqs_least_iunit;
1065
1066                 if (iunit_curr_o != oqaq->qaq_iunit_sz)
1067                         QAQ_SET_ADJINO(oqaq);
1068
1069         }
1070
1071         if (!dquot->dq_dqb.dqb_bhardlimit && !dquot->dq_dqb.dqb_bsoftlimit &&
1072             !dquot->dq_dqb.dqb_ihardlimit && !dquot->dq_dqb.dqb_isoftlimit) {
1073                 oqaq->qaq_bunit_sz = 0;
1074                 oqaq->qaq_iunit_sz = 0;
1075                 QAQ_SET_ADJBLK(oqaq);
1076                 QAQ_SET_ADJINO(oqaq);
1077         }
1078
1079         QAQ_DEBUG(oqaq, "the oqaq computed\n");
1080
1081         RETURN(rc);
1082 }
1083
1084 static int mds_init_slave_ilimits(struct obd_device *obd,
1085                                   struct obd_quotactl *oqctl, int set,
1086                                   struct quota_adjust_qunit *oqaq)
1087 {
1088         /* XXX: for file limits only adjust local now */
1089         struct obd_device_target *obt = &obd->u.obt;
1090         struct lustre_quota_ctxt *qctxt = &obt->obt_qctxt;
1091         unsigned int id[MAXQUOTAS] = { 0, 0 };
1092         struct obd_quotactl *ioqc = NULL;
1093         int flag;
1094         int rc;
1095         ENTRY;
1096
1097         /* if we are going to set zero limit, needn't init slaves */
1098         if (!oqctl->qc_dqblk.dqb_ihardlimit && !oqctl->qc_dqblk.dqb_isoftlimit &&
1099             !set)
1100                 RETURN(0);
1101
1102         OBD_ALLOC_PTR(ioqc);
1103         if (!ioqc)
1104                 RETURN(-ENOMEM);
1105
1106         flag = oqctl->qc_dqblk.dqb_ihardlimit ||
1107                oqctl->qc_dqblk.dqb_isoftlimit || !set;
1108         ioqc->qc_cmd = flag ? Q_INITQUOTA : Q_SETQUOTA;
1109         ioqc->qc_id = oqctl->qc_id;
1110         ioqc->qc_type = oqctl->qc_type;
1111         ioqc->qc_dqblk.dqb_valid = QIF_ILIMITS;
1112         ioqc->qc_dqblk.dqb_ihardlimit = flag ? MIN_QLIMIT : 0;
1113
1114         if (QAQ_IS_ADJINO(oqaq)) {
1115                 /* adjust the mds slave's inode qunit size */
1116                 rc = quota_adjust_slave_lqs(oqaq, qctxt);
1117                 if (rc < 0)
1118                         CDEBUG(D_ERROR, "adjust mds slave's inode qunit size \
1119                                failed! (rc:%d)\n", rc);
1120         }
1121
1122         /* set local limit to MIN_QLIMIT */
1123         rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, ioqc);
1124         if (rc)
1125                 GOTO(out, rc);
1126
1127         /* trigger local qunit pre-acquire */
1128         if (oqctl->qc_type == USRQUOTA)
1129                 id[USRQUOTA] = oqctl->qc_id;
1130         else
1131                 id[GRPQUOTA] = oqctl->qc_id;
1132
1133         rc = qctxt_adjust_qunit(obd, &obd->u.obt.obt_qctxt, id, 0, 0, NULL);
1134         if (rc == -EDQUOT || rc == -EBUSY) {
1135                 CDEBUG(D_QUOTA, "rc: %d.\n", rc);
1136                 rc = 0;
1137         }
1138         if (rc) {
1139                 CDEBUG(D_QUOTA,"error mds adjust local file quota! (rc:%d)\n",
1140                        rc);
1141                 GOTO(out, rc);
1142         }
1143         /* FIXME initialize all slaves in CMD */
1144         EXIT;
1145 out:
1146         if (ioqc)
1147                 OBD_FREE_PTR(ioqc);
1148         return rc;
1149 }
1150
1151 static int mds_init_slave_blimits(struct obd_device *obd,
1152                                   struct obd_quotactl *oqctl, int set,
1153                                   struct quota_adjust_qunit *oqaq)
1154 {
1155         struct obd_device_target *obt = &obd->u.obt;
1156         struct lustre_quota_ctxt *qctxt = &obt->obt_qctxt;
1157         struct mds_obd *mds = &obd->u.mds;
1158         struct obd_quotactl *ioqc;
1159         unsigned int id[MAXQUOTAS] = { 0, 0 };
1160         int rc, rc1 = 0;
1161         int flag;
1162         ENTRY;
1163
1164         /* if we are going to set zero limit, needn't init slaves */
1165         if (!oqctl->qc_dqblk.dqb_bhardlimit && !oqctl->qc_dqblk.dqb_bsoftlimit &&
1166             !set)
1167                 RETURN(0);
1168
1169         OBD_ALLOC_PTR(ioqc);
1170         if (!ioqc)
1171                 RETURN(-ENOMEM);
1172
1173         flag = oqctl->qc_dqblk.dqb_bhardlimit ||
1174                oqctl->qc_dqblk.dqb_bsoftlimit || !set;
1175         ioqc->qc_cmd = flag ? Q_INITQUOTA : Q_SETQUOTA;
1176         ioqc->qc_id = oqctl->qc_id;
1177         ioqc->qc_type = oqctl->qc_type;
1178         ioqc->qc_dqblk.dqb_valid = QIF_BLIMITS;
1179         ioqc->qc_dqblk.dqb_bhardlimit = flag ? MIN_QLIMIT : 0;
1180         if (QAQ_IS_ADJBLK(oqaq)) {
1181                 /* adjust the mds slave's block qunit size */
1182                 rc1 = quota_adjust_slave_lqs(oqaq, qctxt);
1183                 if (rc1 < 0)
1184                         CERROR("adjust mds slave's block qunit size failed!"
1185                                "(rc:%d)\n", rc1);
1186         }
1187
1188         rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, ioqc);
1189         if (rc)
1190                 GOTO(out, rc);
1191
1192         /* trigger local qunit pre-acquire */
1193         if (oqctl->qc_type == USRQUOTA)
1194                 id[USRQUOTA] = oqctl->qc_id;
1195         else
1196                 id[GRPQUOTA] = oqctl->qc_id;
1197
1198         /* initialize all slave's limit */
1199         rc = obd_quotactl(mds->mds_osc_exp, ioqc);
1200
1201         rc = qctxt_adjust_qunit(obd, &obd->u.obt.obt_qctxt, id, 1, 0, NULL);
1202         if (rc == -EDQUOT || rc == -EBUSY) {
1203                 CDEBUG(D_QUOTA, "rc: %d.\n", rc);
1204                 rc = 0;
1205         }
1206         if (rc) {
1207                 CERROR("error mds adjust local block quota! (rc:%d)\n", rc);
1208                 GOTO(out, rc);
1209         }
1210
1211         /* adjust all slave's qunit size when setting quota
1212          * this is will create a lqs for every ost, which will present
1213          * certain uid/gid is set quota or not */
1214         QAQ_SET_ADJBLK(oqaq);
1215         rc = obd_quota_adjust_qunit(mds->mds_osc_exp, oqaq, qctxt);
1216
1217         EXIT;
1218 out:
1219         OBD_FREE_PTR(ioqc);
1220         return rc;
1221 }
1222
1223 int mds_set_dqblk(struct obd_device *obd, struct obd_quotactl *oqctl)
1224 {
1225         struct mds_obd *mds = &obd->u.mds;
1226         struct lustre_quota_ctxt *qctxt = &mds->mds_obt.obt_qctxt;
1227         struct obd_device *lov_obd = class_exp2obd(mds->mds_osc_exp);
1228         struct lov_obd *lov = &lov_obd->u.lov;
1229         struct quota_adjust_qunit *oqaq = NULL;
1230         struct lustre_quota_info *qinfo = &mds->mds_quota_info;
1231         __u64 ihardlimit, isoftlimit, bhardlimit, bsoftlimit;
1232         time_t btime, itime;
1233         struct lustre_dquot *dquot;
1234         struct obd_dqblk *dqblk = &oqctl->qc_dqblk;
1235         /* orig_set means if quota was set before; now_set means we are
1236          * setting/cancelling quota */
1237         int orig_set, now_set;
1238         int rc, rc2 = 0, flag = 0;
1239         ENTRY;
1240
1241         if (oqctl->qc_type != USRQUOTA &&
1242             oqctl->qc_type != GRPQUOTA)
1243                 RETURN(-EINVAL);
1244
1245         OBD_ALLOC_PTR(oqaq);
1246         if (!oqaq)
1247                 RETURN(-ENOMEM);
1248         down(&mds->mds_qonoff_sem);
1249         init_oqaq(oqaq, qctxt, oqctl->qc_id, oqctl->qc_type);
1250
1251         if (qinfo->qi_files[oqctl->qc_type] == NULL)
1252                 GOTO(out_sem, rc = -ESRCH);
1253
1254         dquot = lustre_dqget(obd, qinfo, oqctl->qc_id, oqctl->qc_type);
1255         if (IS_ERR(dquot))
1256                 GOTO(out_sem, rc = PTR_ERR(dquot));
1257         DQUOT_DEBUG(dquot, "get dquot in mds_set_blk\n");
1258         QINFO_DEBUG(dquot->dq_info, "get dquot in mds_set_blk\n");
1259
1260         down(&dquot->dq_sem);
1261
1262         if (dquot->dq_status) {
1263                 up(&dquot->dq_sem);
1264                 lustre_dqput(dquot);
1265                 GOTO(out_sem, rc = -EBUSY);
1266         }
1267         dquot->dq_status |= DQ_STATUS_SET;
1268
1269         ihardlimit = dquot->dq_dqb.dqb_ihardlimit;
1270         isoftlimit = dquot->dq_dqb.dqb_isoftlimit;
1271         bhardlimit = dquot->dq_dqb.dqb_bhardlimit;
1272         bsoftlimit = dquot->dq_dqb.dqb_bsoftlimit;
1273         btime = dquot->dq_dqb.dqb_btime;
1274         itime = dquot->dq_dqb.dqb_itime;
1275
1276         if (dqblk->dqb_valid & QIF_BTIME)
1277                 dquot->dq_dqb.dqb_btime = dqblk->dqb_btime;
1278         if (dqblk->dqb_valid & QIF_ITIME)
1279                 dquot->dq_dqb.dqb_itime = dqblk->dqb_itime;
1280
1281         if (dqblk->dqb_valid & QIF_BLIMITS) {
1282                 dquot->dq_dqb.dqb_bhardlimit = dqblk->dqb_bhardlimit;
1283                 dquot->dq_dqb.dqb_bsoftlimit = dqblk->dqb_bsoftlimit;
1284                 /* clear usage (limit pool) */
1285                 if (!dquot->dq_dqb.dqb_bhardlimit &&
1286                     !dquot->dq_dqb.dqb_bsoftlimit)
1287                         dquot->dq_dqb.dqb_curspace = 0;
1288
1289                 /* clear grace time */
1290                 if (!dqblk->dqb_bsoftlimit ||
1291                     toqb(dquot->dq_dqb.dqb_curspace) <= dqblk->dqb_bsoftlimit)
1292                         dquot->dq_dqb.dqb_btime = 0;
1293                 /* set grace only if user hasn't provided his own */
1294                 else if (!(dqblk->dqb_valid & QIF_BTIME))
1295                         dquot->dq_dqb.dqb_btime = cfs_time_current_sec() +
1296                                 qinfo->qi_info[dquot->dq_type].dqi_bgrace;
1297
1298                 flag |= LQUOTA_FLAGS_ADJBLK;
1299         }
1300
1301         if (dqblk->dqb_valid & QIF_ILIMITS) {
1302                 dquot->dq_dqb.dqb_ihardlimit = dqblk->dqb_ihardlimit;
1303                 dquot->dq_dqb.dqb_isoftlimit = dqblk->dqb_isoftlimit;
1304                 /* clear usage (limit pool) */
1305                 if (!dquot->dq_dqb.dqb_ihardlimit &&
1306                     !dquot->dq_dqb.dqb_isoftlimit)
1307                         dquot->dq_dqb.dqb_curinodes = 0;
1308
1309                 if (!dqblk->dqb_isoftlimit ||
1310                     dquot->dq_dqb.dqb_curinodes <= dqblk->dqb_isoftlimit)
1311                         dquot->dq_dqb.dqb_itime = 0;
1312                 else if (!(dqblk->dqb_valid & QIF_ITIME))
1313                         dquot->dq_dqb.dqb_itime = cfs_time_current_sec() +
1314                                 qinfo->qi_info[dquot->dq_type].dqi_igrace;
1315
1316                 flag |= LQUOTA_FLAGS_ADJINO;
1317         }
1318         QAQ_DEBUG(oqaq, "before dquot_create_oqaq\n");
1319         rc = dquot_create_oqaq(qctxt, dquot, lov->desc.ld_tgt_count, 1,
1320                                flag, oqaq);
1321         QAQ_DEBUG(oqaq, "after dquot_create_oqaq\n");
1322         if (rc < 0)
1323                 CDEBUG(D_QUOTA, "adjust qunit size failed! (rc:%d)\n", rc);
1324
1325
1326         rc = fsfilt_dquot(obd, dquot, QFILE_WR_DQUOT);
1327
1328         up(&dquot->dq_sem);
1329
1330         if (rc) {
1331                 CERROR("set limit failed! (rc:%d)\n", rc);
1332                 goto out;
1333         }
1334
1335         up(&mds->mds_qonoff_sem);
1336         orig_set = ihardlimit || isoftlimit;
1337         now_set  = dqblk->dqb_ihardlimit || dqblk->dqb_isoftlimit;
1338         if (dqblk->dqb_valid & QIF_ILIMITS && orig_set != now_set) {
1339                 down(&dquot->dq_sem);
1340                 dquot->dq_dqb.dqb_curinodes = 0;
1341                 up(&dquot->dq_sem);
1342                 rc = mds_init_slave_ilimits(obd, oqctl, orig_set, oqaq);
1343                 if (rc) {
1344                         CERROR("init slave ilimits failed! (rc:%d)\n", rc);
1345                         goto revoke_out;
1346                 }
1347         }
1348
1349         orig_set = bhardlimit || bsoftlimit;
1350         now_set  = dqblk->dqb_bhardlimit || dqblk->dqb_bsoftlimit;
1351         if (dqblk->dqb_valid & QIF_BLIMITS && orig_set != now_set) {
1352                 down(&dquot->dq_sem);
1353                 dquot->dq_dqb.dqb_curspace = 0;
1354                 up(&dquot->dq_sem);
1355                 rc = mds_init_slave_blimits(obd, oqctl, orig_set, oqaq);
1356                 if (rc) {
1357                         CERROR("init slave blimits failed! (rc:%d)\n", rc);
1358                         goto revoke_out;
1359                 }
1360         }
1361
1362 revoke_out:
1363         down(&mds->mds_qonoff_sem);
1364         down(&dquot->dq_sem);
1365         if (rc) {
1366                 /* cancel previous setting */
1367                 dquot->dq_dqb.dqb_ihardlimit = ihardlimit;
1368                 dquot->dq_dqb.dqb_isoftlimit = isoftlimit;
1369                 dquot->dq_dqb.dqb_bhardlimit = bhardlimit;
1370                 dquot->dq_dqb.dqb_bsoftlimit = bsoftlimit;
1371                 dquot->dq_dqb.dqb_btime = btime;
1372                 dquot->dq_dqb.dqb_itime = itime;
1373         }
1374         rc2 = fsfilt_dquot(obd, dquot, QFILE_WR_DQUOT);
1375         up(&dquot->dq_sem);
1376
1377 out:
1378         down(&dquot->dq_sem);
1379         dquot->dq_status &= ~DQ_STATUS_SET;
1380         up(&dquot->dq_sem);
1381         lustre_dqput(dquot);
1382         EXIT;
1383 out_sem:
1384         up(&mds->mds_qonoff_sem);
1385
1386         if (oqaq)
1387                 OBD_FREE_PTR(oqaq);
1388
1389         return rc ? rc : rc2;
1390 }
1391
1392 static int mds_get_space(struct obd_device *obd, struct obd_quotactl *oqctl)
1393 {
1394         struct obd_quotactl *soqc;
1395         struct lvfs_run_ctxt saved;
1396         int rc, rc1;
1397         ENTRY;
1398
1399         OBD_ALLOC_PTR(soqc);
1400         if (!soqc)
1401                 RETURN(-ENOMEM);
1402
1403         soqc->qc_cmd = Q_GETOQUOTA;
1404         soqc->qc_id = oqctl->qc_id;
1405         soqc->qc_type = oqctl->qc_type;
1406
1407         /* get block usage from OSS */
1408         soqc->qc_dqblk.dqb_curspace = 0;
1409         rc = obd_quotactl(obd->u.mds.mds_osc_exp, soqc);
1410         if (!rc) {
1411                 oqctl->qc_dqblk.dqb_curspace = soqc->qc_dqblk.dqb_curspace;
1412                 oqctl->qc_dqblk.dqb_valid |= QIF_SPACE;
1413         }
1414
1415         /* get block/inode usage from MDS */
1416         soqc->qc_dqblk.dqb_curspace = 0;
1417         soqc->qc_dqblk.dqb_curinodes = 0;
1418         push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
1419         rc1 = fsfilt_quotactl(obd, obd->u.obt.obt_sb, soqc);
1420         pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
1421         if (!rc1) {
1422                 oqctl->qc_dqblk.dqb_curspace += soqc->qc_dqblk.dqb_curspace;
1423                 oqctl->qc_dqblk.dqb_curinodes = soqc->qc_dqblk.dqb_curinodes;
1424                 oqctl->qc_dqblk.dqb_valid |= QIF_INODES;
1425         }
1426
1427         OBD_FREE_PTR(soqc);
1428
1429         RETURN(rc ? : rc1);
1430 }
1431
1432 int mds_get_dqblk(struct obd_device *obd, struct obd_quotactl *oqctl)
1433 {
1434         struct mds_obd *mds = &obd->u.mds;
1435         struct lustre_quota_info *qinfo = &mds->mds_quota_info;
1436         struct lustre_dquot *dquot;
1437         struct obd_dqblk *dqblk = &oqctl->qc_dqblk;
1438         int rc;
1439         ENTRY;
1440
1441         if (oqctl->qc_type != USRQUOTA &&
1442             oqctl->qc_type != GRPQUOTA)
1443                 RETURN(-EINVAL);
1444
1445         down(&mds->mds_qonoff_sem);
1446         dqblk->dqb_valid = 0;
1447         if (qinfo->qi_files[oqctl->qc_type] == NULL)
1448                 GOTO(out, rc = -ESRCH);
1449
1450         dquot = lustre_dqget(obd, qinfo, oqctl->qc_id, oqctl->qc_type);
1451         if (IS_ERR(dquot))
1452                 GOTO(out, rc = PTR_ERR(dquot));
1453
1454         down(&dquot->dq_sem);
1455         dqblk->dqb_ihardlimit = dquot->dq_dqb.dqb_ihardlimit;
1456         dqblk->dqb_isoftlimit = dquot->dq_dqb.dqb_isoftlimit;
1457         dqblk->dqb_bhardlimit = dquot->dq_dqb.dqb_bhardlimit;
1458         dqblk->dqb_bsoftlimit = dquot->dq_dqb.dqb_bsoftlimit;
1459         dqblk->dqb_btime = dquot->dq_dqb.dqb_btime;
1460         dqblk->dqb_itime = dquot->dq_dqb.dqb_itime;
1461         dqblk->dqb_valid |= QIF_LIMITS | QIF_TIMES;
1462         up(&dquot->dq_sem);
1463
1464         lustre_dqput(dquot);
1465
1466         /* the usages in admin quota file is inaccurate */
1467         dqblk->dqb_curinodes = 0;
1468         dqblk->dqb_curspace = 0;
1469         rc = mds_get_space(obd, oqctl);
1470         EXIT;
1471 out:
1472         up(&mds->mds_qonoff_sem);
1473         return rc;
1474 }
1475
1476 int mds_get_obd_quota(struct obd_device *obd, struct obd_quotactl *oqctl)
1477 {
1478         struct lvfs_run_ctxt saved;
1479         int rc;
1480         ENTRY;
1481
1482         push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
1483         rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, oqctl);
1484         pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
1485
1486         RETURN(rc);
1487 }
1488
1489
1490 /* FIXME we only recovery block limit by now, need recovery inode
1491  * limits also after CMD involved in */
1492 static int
1493 dquot_recovery(struct obd_device *obd, unsigned int id, unsigned short type)
1494 {
1495         struct mds_obd *mds = &obd->u.mds;
1496         struct lustre_quota_info *qinfo= &mds->mds_quota_info;
1497         struct lustre_dquot *dquot;
1498         struct obd_quotactl *qctl;
1499         __u64 total_limits = 0;
1500         int rc;
1501         ENTRY;
1502
1503         OBD_ALLOC_PTR(qctl);
1504         if (qctl == NULL)
1505                 RETURN(-ENOMEM);
1506
1507         dquot = lustre_dqget(obd, qinfo, id, type);
1508         if (IS_ERR(dquot)) {
1509                 CERROR("Get dquot failed. (rc:%ld)\n", PTR_ERR(dquot));
1510                 OBD_FREE_PTR(qctl);
1511                 RETURN(PTR_ERR(dquot));
1512         }
1513
1514         down(&dquot->dq_sem);
1515
1516         /* don't recovery the dquot without limits or under setting */
1517         if (!(dquot->dq_dqb.dqb_bhardlimit || dquot->dq_dqb.dqb_bsoftlimit) ||
1518             dquot->dq_status)
1519                 GOTO(skip, rc = 0);
1520         dquot->dq_status |= DQ_STATUS_RECOVERY;
1521
1522         up(&dquot->dq_sem);
1523
1524         /* get real bhardlimit from all slaves. */
1525         qctl->qc_cmd = Q_GETOQUOTA;
1526         qctl->qc_type = type;
1527         qctl->qc_id = id;
1528         qctl->qc_stat = QUOTA_RECOVERING;
1529         rc = obd_quotactl(mds->mds_osc_exp, qctl);
1530         if (rc)
1531                 GOTO(out, rc);
1532         total_limits = qctl->qc_dqblk.dqb_bhardlimit;
1533
1534         /* get real bhardlimit from master */
1535         rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, qctl);
1536         if (rc)
1537                 GOTO(out, rc);
1538         total_limits += qctl->qc_dqblk.dqb_bhardlimit;
1539
1540         /* amend the usage of the administrative quotafile */
1541         down(&mds->mds_qonoff_sem);
1542         down(&dquot->dq_sem);
1543
1544         dquot->dq_dqb.dqb_curspace = total_limits << QUOTABLOCK_BITS;
1545
1546         rc = fsfilt_dquot(obd, dquot, QFILE_WR_DQUOT);
1547         if (rc)
1548                 CERROR("write dquot failed! (rc:%d)\n", rc);
1549
1550         up(&dquot->dq_sem);
1551         up(&mds->mds_qonoff_sem);
1552         EXIT;
1553 out:
1554         down(&dquot->dq_sem);
1555         dquot->dq_status &= ~DQ_STATUS_RECOVERY;
1556 skip:
1557         up(&dquot->dq_sem);
1558
1559         lustre_dqput(dquot);
1560         OBD_FREE_PTR(qctl);
1561         return rc;
1562 }
1563
1564 struct qmaster_recov_thread_data {
1565         struct obd_device *obd;
1566         struct completion comp;
1567 };
1568
1569 static int qmaster_recovery_main(void *arg)
1570 {
1571         struct qmaster_recov_thread_data *data = arg;
1572         struct obd_device *obd = data->obd;
1573         struct mds_obd *mds = &obd->u.mds;
1574         struct lustre_quota_info *qinfo = &mds->mds_quota_info;
1575         int rc = 0;
1576         unsigned short type;
1577         ENTRY;
1578
1579         ptlrpc_daemonize("qmaster_recovd");
1580
1581         /* for mds */
1582         class_incref(obd, "qmaster_recovd_mds", obd);
1583         /* for lov */
1584         class_incref(mds->mds_osc_obd, "qmaster_recovd_lov", mds->mds_osc_obd);
1585
1586         complete(&data->comp);
1587
1588         for (type = USRQUOTA; type < MAXQUOTAS; type++) {
1589                 struct list_head id_list;
1590                 struct dquot_id *dqid, *tmp;
1591
1592                 down(&mds->mds_qonoff_sem);
1593                 if (qinfo->qi_files[type] == NULL) {
1594                         up(&mds->mds_qonoff_sem);
1595                         continue;
1596                 }
1597                 CFS_INIT_LIST_HEAD(&id_list);
1598                 rc = fsfilt_qids(obd, qinfo->qi_files[type], NULL, type,
1599                                  &id_list);
1600                 up(&mds->mds_qonoff_sem);
1601
1602                 if (rc)
1603                         CERROR("error get ids from admin quotafile.(%d)\n", rc);
1604
1605                 list_for_each_entry_safe(dqid, tmp, &id_list, di_link) {
1606                         list_del_init(&dqid->di_link);
1607                         if (rc)
1608                                 goto free;
1609
1610                         rc = dquot_recovery(obd, dqid->di_id, type);
1611                         if (rc)
1612                                 CERROR("qmaster recovery failed! (id:%d type:%d"
1613                                        " rc:%d)\n", dqid->di_id, type, rc);
1614 free:
1615                         kfree(dqid);
1616                 }
1617         }
1618         class_decref(mds->mds_osc_obd, "qmaster_recovd_lov", mds->mds_osc_obd);
1619         class_decref(obd, "qmaster_recovd_mds", obd);
1620         RETURN(rc);
1621 }
1622
1623 int mds_quota_recovery(struct obd_device *obd)
1624 {
1625         struct mds_obd *mds = &obd->u.mds;
1626         struct qmaster_recov_thread_data data;
1627         int rc = 0;
1628         ENTRY;
1629
1630         if (unlikely(!mds->mds_quota || obd->obd_stopping))
1631                 RETURN(rc);
1632
1633         mutex_down(&obd->obd_dev_sem);
1634         if (mds->mds_lov_desc.ld_active_tgt_count != mds->mds_lov_objid_count) {
1635                 CWARN("Only %u/%u OSTs are active, abort quota recovery\n",
1636                       mds->mds_lov_desc.ld_active_tgt_count,
1637                       mds->mds_lov_objid_count);
1638                 mutex_up(&obd->obd_dev_sem);
1639                 RETURN(rc);
1640         }
1641         mutex_up(&obd->obd_dev_sem);
1642
1643         data.obd = obd;
1644         init_completion(&data.comp);
1645
1646         rc = kernel_thread(qmaster_recovery_main, &data, CLONE_VM|CLONE_FILES);
1647         if (rc < 0)
1648                 CERROR("Cannot start quota recovery thread: rc %d\n", rc);
1649
1650         wait_for_completion(&data.comp);
1651         RETURN(rc);
1652 }
1653
1654 #endif /* HAVE_QUOTA_SUPPORT */