lustre/quota/lproc_quota.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 (c) 2008, 2010, Oracle and/or its affiliates. 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
  37 #define DEBUG_SUBSYSTEM S_LQUOTA
  38
  39 #include <linux/version.h>
  40 #include <lprocfs_status.h>
  41 #include <obd.h>
  42 #include <linux/seq_file.h>
  43 #include <lustre_fsfilt.h>
  44
  45 #include "quota_internal.h"
  46
  47 #ifdef HAVE_QUOTA_SUPPORT
  48
  49 #ifdef LPROCFS
  50 int lprocfs_quota_rd_bunit(char *page, char **start, off_t off, int count,
  51                            int *eof, void *data)
  52 {
  53         struct obd_device *obd = (struct obd_device *)data;
  54         LASSERT(obd != NULL);
  55
  56         return snprintf(page, count, "%lu\n",
  57                         obd->u.obt.obt_qctxt.lqc_bunit_sz);
  58 }
  59 EXPORT_SYMBOL(lprocfs_quota_rd_bunit);
  60
  61 int lprocfs_quota_wr_bunit(struct file *file, const char *buffer,
  62                            unsigned long count, void *data)
  63 {
  64         struct obd_device *obd = (struct obd_device *)data;
  65         int val, rc;
  66         LASSERT(obd != NULL);
  67
  68         rc = lprocfs_write_helper(buffer, count, &val);
  69         if (rc)
  70                 return rc;
  71
  72         if (val % QUOTABLOCK_SIZE ||
  73             val <= obd->u.obt.obt_qctxt.lqc_btune_sz)
  74                 return -EINVAL;
  75
  76         obd->u.obt.obt_qctxt.lqc_bunit_sz = val;
  77         return count;
  78 }
  79 EXPORT_SYMBOL(lprocfs_quota_wr_bunit);
  80
  81 int lprocfs_quota_rd_btune(char *page, char **start, off_t off, int count,
  82                            int *eof, void *data)
  83 {
  84         struct obd_device *obd = (struct obd_device *)data;
  85         LASSERT(obd != NULL);
  86
  87         return snprintf(page, count, "%lu\n",
  88                         obd->u.obt.obt_qctxt.lqc_btune_sz);
  89 }
  90 EXPORT_SYMBOL(lprocfs_quota_rd_btune);
  91
  92 int lprocfs_quota_wr_btune(struct file *file, const char *buffer,
  93                            unsigned long count, void *data)
  94 {
  95         struct obd_device *obd = (struct obd_device *)data;
  96         int val, rc;
  97         LASSERT(obd != NULL);
  98
  99         rc = lprocfs_write_helper(buffer, count, &val);
 100         if (rc)
 101                 return rc;
 102
 103         if (val <= QUOTABLOCK_SIZE * MIN_QLIMIT || val % QUOTABLOCK_SIZE ||
 104             val >= obd->u.obt.obt_qctxt.lqc_bunit_sz)
 105                 return -EINVAL;
 106
 107         obd->u.obt.obt_qctxt.lqc_btune_sz = val;
 108         return count;
 109 }
 110 EXPORT_SYMBOL(lprocfs_quota_wr_btune);
 111
 112 int lprocfs_quota_rd_iunit(char *page, char **start, off_t off, int count,
 113                            int *eof, void *data)
 114 {
 115         struct obd_device *obd = (struct obd_device *)data;
 116         LASSERT(obd != NULL);
 117
 118         return snprintf(page, count, "%lu\n",
 119                         obd->u.obt.obt_qctxt.lqc_iunit_sz);
 120 }
 121 EXPORT_SYMBOL(lprocfs_quota_rd_iunit);
 122
 123 int lprocfs_quota_wr_iunit(struct file *file, const char *buffer,
 124                            unsigned long count, void *data)
 125 {
 126         struct obd_device *obd = (struct obd_device *)data;
 127         int val, rc;
 128         LASSERT(obd != NULL);
 129
 130         rc = lprocfs_write_helper(buffer, count, &val);
 131         if (rc)
 132                 return rc;
 133
 134         if (val <= obd->u.obt.obt_qctxt.lqc_itune_sz)
 135                 return -EINVAL;
 136
 137         obd->u.obt.obt_qctxt.lqc_iunit_sz = val;
 138         return count;
 139 }
 140 EXPORT_SYMBOL(lprocfs_quota_wr_iunit);
 141
 142 int lprocfs_quota_rd_itune(char *page, char **start, off_t off, int count,
 143                            int *eof, void *data)
 144 {
 145         struct obd_device *obd = (struct obd_device *)data;
 146         LASSERT(obd != NULL);
 147
 148         return snprintf(page, count, "%lu\n",
 149                         obd->u.obt.obt_qctxt.lqc_itune_sz);
 150 }
 151 EXPORT_SYMBOL(lprocfs_quota_rd_itune);
 152
 153 int lprocfs_quota_wr_itune(struct file *file, const char *buffer,
 154                            unsigned long count, void *data)
 155 {
 156         struct obd_device *obd = (struct obd_device *)data;
 157         int val, rc;
 158         LASSERT(obd != NULL);
 159
 160         rc = lprocfs_write_helper(buffer, count, &val);
 161         if (rc)
 162                 return rc;
 163
 164         if (val <= MIN_QLIMIT ||
 165             val >= obd->u.obt.obt_qctxt.lqc_iunit_sz)
 166                 return -EINVAL;
 167
 168         obd->u.obt.obt_qctxt.lqc_itune_sz = val;
 169         return count;
 170 }
 171 EXPORT_SYMBOL(lprocfs_quota_wr_itune);
 172
 173 #define USER_QUOTA      1
 174 #define GROUP_QUOTA     2
 175
 176 #define MAX_STYPE_SIZE  5
 177
 178 int lprocfs_quota_rd_type(char *page, char **start, off_t off, int count,
 179                           int *eof, void *data)
 180 {
 181         struct obd_device *obd = (struct obd_device *)data;
 182         char stype[MAX_STYPE_SIZE + 1] = "";
 183         int oq_type;
 184
 185         LASSERT(obd != NULL);
 186
 187         /* Collect the needed information */
 188         oq_type = obd->u.obt.obt_qctxt.lqc_flags;
 189
 190         /* Transform the collected data into a user-readable string */
 191         if (oq_type & LQC_USRQUOTA_FLAG)
 192                 strcat(stype, "u");
 193         if (oq_type & LQC_GRPQUOTA_FLAG)
 194                 strcat(stype, "g");
 195
 196         strcat(stype, "3");
 197
 198         return snprintf(page, count, "%s\n", stype);
 199 }
 200 EXPORT_SYMBOL(lprocfs_quota_rd_type);
 201
 202 /*
 203  * generic_quota_on is very lazy and tolerant about current quota settings
 204  * @global means to turn on quotas on each OST additionally to local quotas;
 205  * should not be called from filter_quota_ctl on MDS nodes (as it starts
 206  * admin quotas on MDS nodes).
 207  */
 208 int generic_quota_on(struct obd_device *obd, struct obd_quotactl *oqctl, int global)
 209 {
 210         struct obd_device_target *obt = &obd->u.obt;
 211         struct lvfs_run_ctxt saved;
 212         int id, is_master, rc = 0, local; /* means we need a local quotaon */
 213
 214         cfs_down(&obt->obt_quotachecking);
 215         push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 216         id = UGQUOTA2LQC(oqctl->qc_type);
 217         local = (obt->obt_qctxt.lqc_flags & id) != id;
 218
 219         oqctl->qc_cmd = Q_QUOTAON;
 220         oqctl->qc_id = obt->obt_qfmt;
 221
 222         is_master = !strcmp(obd->obd_type->typ_name, LUSTRE_MDS_NAME);
 223         if (is_master) {
 224                 cfs_down_write(&obd->u.mds.mds_qonoff_sem);
 225                 if (local) {
 226                         /* turn on cluster wide quota */
 227                         rc = mds_admin_quota_on(obd, oqctl);
 228                         if (rc && rc != -ENOENT)
 229                                 CERROR("%s: %s admin quotaon failed. rc=%d\n",
 230                                        obd->obd_name, global ? "global":"local",
 231                                        rc);
 232                 }
 233         }
 234
 235         if (rc == 0) {
 236                 if (local) {
 237                         rc = fsfilt_quotactl(obd, obt->obt_sb, oqctl);
 238                         if (rc) {
 239                                 if (rc != -ENOENT)
 240                                         CERROR("%s: %s quotaon failed with"
 241                                                " rc=%d\n", obd->obd_name,
 242                                                global ? "global" : "local", rc);
 243                         } else {
 244                                 obt->obt_qctxt.lqc_flags |= UGQUOTA2LQC(oqctl->qc_type);
 245                                 build_lqs(obd);
 246                         }
 247                 }
 248
 249                 if (rc == 0 && global && is_master)
 250                         rc = obd_quotactl(obd->u.mds.mds_lov_exp, oqctl);
 251         }
 252
 253         if (is_master)
 254                 cfs_up_write(&obd->u.mds.mds_qonoff_sem);
 255
 256         pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 257         cfs_up(&obt->obt_quotachecking);
 258
 259         CDEBUG(D_QUOTA, "%s: quotaon type:master:global:local:flags:rc "
 260                "%u:%d:%d:%d:%lu:%d\n",
 261                obd->obd_name, oqctl->qc_type, is_master, global, local,
 262                obt->obt_qctxt.lqc_flags, rc);
 263
 264         return rc;
 265 }
 266
 267 static int auto_quota_on(struct obd_device *obd, int type)
 268 {
 269         struct obd_quotactl *oqctl;
 270         int rc;
 271         ENTRY;
 272
 273         LASSERT(type == USRQUOTA || type == GRPQUOTA || type == UGQUOTA);
 274
 275         OBD_ALLOC_PTR(oqctl);
 276         if (!oqctl)
 277                 RETURN(-ENOMEM);
 278
 279         oqctl->qc_type = type;
 280
 281         rc = generic_quota_on(obd, oqctl, 0);
 282
 283         OBD_FREE_PTR(oqctl);
 284         RETURN(rc);
 285 }
 286
 287 int lprocfs_quota_wr_type(struct file *file, const char *buffer,
 288                           unsigned long count, void *data)
 289 {
 290         struct obd_device *obd = (struct obd_device *)data;
 291         int type = 0;
 292         unsigned long i;
 293         char stype[MAX_STYPE_SIZE + 1] = "";
 294
 295         LASSERT(obd != NULL);
 296
 297         if (count > MAX_STYPE_SIZE)
 298                 return -EINVAL;
 299
 300         if (cfs_copy_from_user(stype, buffer, count))
 301                 return -EFAULT;
 302
 303         for (i = 0 ; i < count ; i++) {
 304                 switch (stype[i]) {
 305                 case 'u' :
 306                         type |= USER_QUOTA;
 307                         break;
 308                 case 'g' :
 309                         type |= GROUP_QUOTA;
 310                         break;
 311                 case '1' :
 312                 case '2' :
 313                         CWARN("quota_type options 1 and 2 are obsolete, "
 314                               "they will be ignored\n");
 315                         break;
 316                 case '3' : /* the only valid version spec, do nothing */
 317                 default  : /* just skip stray symbols like \n */
 318                         break;
 319                 }
 320         }
 321
 322         if (type != 0) {
 323                 int rc = auto_quota_on(obd, type - 1);
 324
 325                 if (rc && rc != -EALREADY && rc != -ENOENT)
 326                         return rc;
 327         }
 328
 329         return count;
 330 }
 331 EXPORT_SYMBOL(lprocfs_quota_wr_type);
 332
 333 int lprocfs_quota_rd_switch_seconds(char *page, char **start, off_t off,
 334                                     int count, int *eof, void *data)
 335 {
 336         struct obd_device *obd = (struct obd_device *)data;
 337         LASSERT(obd != NULL);
 338
 339         return snprintf(page, count, "%d\n",
 340                         obd->u.obt.obt_qctxt.lqc_switch_seconds);
 341 }
 342 EXPORT_SYMBOL(lprocfs_quota_rd_switch_seconds);
 343
 344 int lprocfs_quota_wr_switch_seconds(struct file *file, const char *buffer,
 345                                     unsigned long count, void *data)
 346 {
 347         struct obd_device *obd = (struct obd_device *)data;
 348         int val, rc;
 349         LASSERT(obd != NULL);
 350
 351         rc = lprocfs_write_helper(buffer, count, &val);
 352         if (rc)
 353                 return rc;
 354
 355         if (val <= 10)
 356                 return -EINVAL;
 357
 358         obd->u.obt.obt_qctxt.lqc_switch_seconds = val;
 359         return count;
 360 }
 361 EXPORT_SYMBOL(lprocfs_quota_wr_switch_seconds);
 362
 363 int lprocfs_quota_rd_sync_blk(char *page, char **start, off_t off,
 364                               int count, int *eof, void *data)
 365 {
 366         struct obd_device *obd = (struct obd_device *)data;
 367         LASSERT(obd != NULL);
 368
 369         return snprintf(page, count, "%d\n",
 370                         obd->u.obt.obt_qctxt.lqc_sync_blk);
 371 }
 372 EXPORT_SYMBOL(lprocfs_quota_rd_sync_blk);
 373
 374 int lprocfs_quota_wr_sync_blk(struct file *file, const char *buffer,
 375                               unsigned long count, void *data)
 376 {
 377         struct obd_device *obd = (struct obd_device *)data;
 378         int val, rc;
 379         LASSERT(obd != NULL);
 380
 381         rc = lprocfs_write_helper(buffer, count, &val);
 382         if (rc)
 383                 return rc;
 384
 385         if (val < 0)
 386                 return -EINVAL;
 387
 388         obd->u.obt.obt_qctxt.lqc_sync_blk = val;
 389         return count;
 390 }
 391 EXPORT_SYMBOL(lprocfs_quota_wr_sync_blk);
 392
 393 int lprocfs_quota_rd_switch_qs(char *page, char **start, off_t off,
 394                                int count, int *eof, void *data)
 395 {
 396         struct obd_device *obd = (struct obd_device *)data;
 397         LASSERT(obd != NULL);
 398
 399         return snprintf(page, count, "changing qunit size is %s\n",
 400                         obd->u.obt.obt_qctxt.lqc_switch_qs ?
 401                         "enabled" : "disabled");
 402 }
 403 EXPORT_SYMBOL(lprocfs_quota_rd_switch_qs);
 404
 405 int lprocfs_quota_wr_switch_qs(struct file *file, const char *buffer,
 406                                unsigned long count, void *data)
 407 {
 408         struct obd_device *obd = (struct obd_device *)data;
 409         int val, rc;
 410         LASSERT(obd != NULL);
 411
 412         rc = lprocfs_write_helper(buffer, count, &val);
 413         if (rc)
 414                 return rc;
 415
 416         if (val)
 417             obd->u.obt.obt_qctxt.lqc_switch_qs = 1;
 418         else
 419             obd->u.obt.obt_qctxt.lqc_switch_qs = 0;
 420
 421         return count;
 422 }
 423 EXPORT_SYMBOL(lprocfs_quota_wr_switch_qs);
 424
 425 int lprocfs_quota_rd_boundary_factor(char *page, char **start, off_t off,
 426                                      int count, int *eof, void *data)
 427 {
 428         struct obd_device *obd = (struct obd_device *)data;
 429         LASSERT(obd != NULL);
 430
 431
 432         return snprintf(page, count, "%lu\n",
 433                         obd->u.obt.obt_qctxt.lqc_cqs_boundary_factor);
 434 }
 435 EXPORT_SYMBOL(lprocfs_quota_rd_boundary_factor);
 436
 437 int lprocfs_quota_wr_boundary_factor(struct file *file, const char *buffer,
 438                                      unsigned long count, void *data)
 439 {
 440         struct obd_device *obd = (struct obd_device *)data;
 441         int val, rc;
 442         LASSERT(obd != NULL);
 443
 444         rc = lprocfs_write_helper(buffer, count, &val);
 445         if (rc)
 446                 return rc;
 447
 448         if (val < 2)
 449                 return -EINVAL;
 450
 451         obd->u.obt.obt_qctxt.lqc_cqs_boundary_factor = val;
 452         return count;
 453 }
 454 EXPORT_SYMBOL(lprocfs_quota_wr_boundary_factor);
 455
 456 int lprocfs_quota_rd_least_bunit(char *page, char **start, off_t off,
 457                                  int count, int *eof, void *data)
 458 {
 459         struct obd_device *obd = (struct obd_device *)data;
 460         LASSERT(obd != NULL);
 461
 462
 463         return snprintf(page, count, "%lu\n",
 464                         obd->u.obt.obt_qctxt.lqc_cqs_least_bunit);
 465 }
 466 EXPORT_SYMBOL(lprocfs_quota_rd_least_bunit);
 467
 468 int lprocfs_quota_wr_least_bunit(struct file *file, const char *buffer,
 469                                  unsigned long count, void *data)
 470 {
 471         struct obd_device *obd = (struct obd_device *)data;
 472         int val, rc;
 473         LASSERT(obd != NULL);
 474
 475         rc = lprocfs_write_helper(buffer, count, &val);
 476         if (rc)
 477                 return rc;
 478
 479         if (val < PTLRPC_MAX_BRW_SIZE ||
 480             val >= obd->u.obt.obt_qctxt.lqc_bunit_sz)
 481                 return -EINVAL;
 482
 483         obd->u.obt.obt_qctxt.lqc_cqs_least_bunit = val;
 484         return count;
 485 }
 486 EXPORT_SYMBOL(lprocfs_quota_wr_least_bunit);
 487
 488 int lprocfs_quota_rd_least_iunit(char *page, char **start, off_t off,
 489                                  int count, int *eof, void *data)
 490 {
 491         struct obd_device *obd = (struct obd_device *)data;
 492         LASSERT(obd != NULL);
 493
 494
 495         return snprintf(page, count, "%lu\n",
 496                         obd->u.obt.obt_qctxt.lqc_cqs_least_iunit);
 497 }
 498 EXPORT_SYMBOL(lprocfs_quota_rd_least_iunit);
 499
 500 int lprocfs_quota_wr_least_iunit(struct file *file, const char *buffer,
 501                                  unsigned long count, void *data)
 502 {
 503         struct obd_device *obd = (struct obd_device *)data;
 504         int val, rc;
 505         LASSERT(obd != NULL);
 506
 507         rc = lprocfs_write_helper(buffer, count, &val);
 508         if (rc)
 509                 return rc;
 510
 511         if (val < 1 || val >= obd->u.obt.obt_qctxt.lqc_iunit_sz)
 512                 return -EINVAL;
 513
 514         obd->u.obt.obt_qctxt.lqc_cqs_least_iunit = val;
 515         return count;
 516 }
 517 EXPORT_SYMBOL(lprocfs_quota_wr_least_iunit);
 518
 519 int lprocfs_quota_rd_qs_factor(char *page, char **start, off_t off,
 520                                int count, int *eof, void *data)
 521 {
 522         struct obd_device *obd = (struct obd_device *)data;
 523         LASSERT(obd != NULL);
 524
 525
 526         return snprintf(page, count, "%lu\n",
 527                         obd->u.obt.obt_qctxt.lqc_cqs_qs_factor);
 528 }
 529 EXPORT_SYMBOL(lprocfs_quota_rd_qs_factor);
 530
 531 int lprocfs_quota_wr_qs_factor(struct file *file, const char *buffer,
 532                                unsigned long count, void *data)
 533 {
 534         struct obd_device *obd = (struct obd_device *)data;
 535         int val, rc;
 536         LASSERT(obd != NULL);
 537
 538         rc = lprocfs_write_helper(buffer, count, &val);
 539         if (rc)
 540                 return rc;
 541
 542         if (val < 2)
 543                 return -EINVAL;
 544
 545         obd->u.obt.obt_qctxt.lqc_cqs_qs_factor = val;
 546         return count;
 547 }
 548 EXPORT_SYMBOL(lprocfs_quota_wr_qs_factor);
 549
 550 struct lprocfs_vars lprocfs_quota_common_vars[] = {
 551         { "quota_bunit_sz", lprocfs_quota_rd_bunit,
 552                             lprocfs_quota_wr_bunit, 0},
 553         { "quota_btune_sz", lprocfs_quota_rd_btune,
 554                             lprocfs_quota_wr_btune, 0},
 555         { "quota_iunit_sz", lprocfs_quota_rd_iunit,
 556                             lprocfs_quota_wr_iunit, 0},
 557         { "quota_itune_sz", lprocfs_quota_rd_itune,
 558                             lprocfs_quota_wr_itune, 0},
 559         { "quota_type",     lprocfs_quota_rd_type,
 560                             lprocfs_quota_wr_type, 0},
 561         { "quota_switch_seconds",  lprocfs_quota_rd_switch_seconds,
 562                                    lprocfs_quota_wr_switch_seconds, 0 },
 563         { "quota_sync_blk", lprocfs_quota_rd_sync_blk,
 564                             lprocfs_quota_wr_sync_blk, 0},
 565         { NULL }
 566 };
 567
 568 struct lprocfs_vars lprocfs_quota_master_vars[] = {
 569         { "quota_switch_qs", lprocfs_quota_rd_switch_qs,
 570                              lprocfs_quota_wr_switch_qs, 0 },
 571         { "quota_boundary_factor", lprocfs_quota_rd_boundary_factor,
 572                                    lprocfs_quota_wr_boundary_factor, 0 },
 573         { "quota_least_bunit", lprocfs_quota_rd_least_bunit,
 574                                lprocfs_quota_wr_least_bunit, 0 },
 575         { "quota_least_iunit", lprocfs_quota_rd_least_iunit,
 576                                lprocfs_quota_wr_least_iunit, 0 },
 577         { "quota_qs_factor",   lprocfs_quota_rd_qs_factor,
 578                                lprocfs_quota_wr_qs_factor, 0 },
 579         { NULL }
 580 };
 581
 582 int lquota_proc_setup(struct obd_device *obd, int is_master)
 583 {
 584         struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
 585         int rc = 0;
 586         ENTRY;
 587
 588         LASSERT(lquota_type_proc_dir && obd);
 589         qctxt->lqc_proc_dir = lprocfs_register(obd->obd_name,
 590                                                lquota_type_proc_dir,
 591                                                lprocfs_quota_common_vars, obd);
 592         if (IS_ERR(qctxt->lqc_proc_dir)) {
 593                 rc = PTR_ERR(qctxt->lqc_proc_dir);
 594                 CERROR("%s: error %d setting up lprocfs\n",
 595                        obd->obd_name, rc);
 596                 qctxt->lqc_proc_dir = NULL;
 597                 GOTO(out, rc);
 598         }
 599
 600         if (is_master) {
 601                 rc = lprocfs_add_vars(qctxt->lqc_proc_dir,
 602                                       lprocfs_quota_master_vars, obd);
 603                 if (rc) {
 604                         CERROR("%s: error %d setting up lprocfs for "
 605                                "quota master\n", obd->obd_name, rc);
 606                         GOTO(out_free_proc, rc);
 607                 }
 608         }
 609
 610         qctxt->lqc_stats = lprocfs_alloc_stats(LQUOTA_LAST_STAT -
 611                                                LQUOTA_FIRST_STAT, 0);
 612         if (!qctxt->lqc_stats)
 613                 GOTO(out_free_proc, rc = -ENOMEM);
 614
 615         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_SYNC_ACQ,
 616                              LPROCFS_CNTR_AVGMINMAX, "sync_acq_req", "us");
 617         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_SYNC_REL,
 618                              LPROCFS_CNTR_AVGMINMAX, "sync_rel_req", "us");
 619         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ASYNC_ACQ,
 620                              LPROCFS_CNTR_AVGMINMAX, "async_acq_req", "us");
 621         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ASYNC_REL,
 622                              LPROCFS_CNTR_AVGMINMAX, "async_rel_req", "us");
 623
 624         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_CHK_BLK,
 625                              LPROCFS_CNTR_AVGMINMAX,
 626                              "wait_for_blk_quota(lquota_chkquota)", "us");
 627         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_CHK_INO,
 628                              LPROCFS_CNTR_AVGMINMAX,
 629                              "wait_for_ino_quota(lquota_chkquota)", "us");
 630         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_COMMIT_BLK,
 631                              LPROCFS_CNTR_AVGMINMAX,
 632                              "wait_for_blk_quota(lquota_pending_commit)",
 633                              "us");
 634         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_COMMIT_INO,
 635                              LPROCFS_CNTR_AVGMINMAX,
 636                              "wait_for_ino_quota(lquota_pending_commit)",
 637                              "us");
 638
 639         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_PENDING_BLK_QUOTA,
 640                              LPROCFS_CNTR_AVGMINMAX,
 641                              "wait_for_pending_blk_quota_req"
 642                              "(qctxt_wait_pending_dqacq)", "us");
 643         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_PENDING_INO_QUOTA,
 644                              LPROCFS_CNTR_AVGMINMAX,
 645                              "wait_for_pending_ino_quota_req"
 646                              "(qctxt_wait_pending_dqacq)", "us");
 647         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_NOWAIT_PENDING_BLK_QUOTA,
 648                              LPROCFS_CNTR_AVGMINMAX,
 649                              "nowait_for_pending_blk_quota_req"
 650                              "(qctxt_wait_pending_dqacq)", "us");
 651         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_NOWAIT_PENDING_INO_QUOTA,
 652                              LPROCFS_CNTR_AVGMINMAX,
 653                              "nowait_for_pending_ino_quota_req"
 654                              "(qctxt_wait_pending_dqacq)", "us");
 655
 656         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_QUOTA_CTL,
 657                              LPROCFS_CNTR_AVGMINMAX, "quota_ctl", "us");
 658         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ADJUST_QUNIT,
 659                              LPROCFS_CNTR_AVGMINMAX, "adjust_qunit", "us");
 660
 661         lprocfs_register_stats(qctxt->lqc_proc_dir, "stats", qctxt->lqc_stats);
 662
 663         RETURN(rc);
 664
 665 out_free_proc:
 666         lprocfs_remove(&qctxt->lqc_proc_dir);
 667 out:
 668         RETURN(rc);
 669 }
 670
 671 int lquota_proc_cleanup(struct lustre_quota_ctxt *qctxt)
 672 {
 673         if (!qctxt || !qctxt->lqc_proc_dir)
 674                 return -EINVAL;
 675
 676         if (qctxt->lqc_stats != NULL)
 677                  lprocfs_free_stats(&qctxt->lqc_stats);
 678
 679         lprocfs_remove(&qctxt->lqc_proc_dir);
 680         return 0;
 681 }
 682
 683 #endif  /* LPROCFS */
 684 #endif