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         struct obd_device_target *obt;
 185
 186         LASSERT(obd != NULL);
 187
 188         obt = &obd->u.obt;
 189
 190         /* Collect the needed information */
 191         oq_type = obd->u.obt.obt_qctxt.lqc_flags;
 192
 193         /* Transform the collected data into a user-readable string */
 194         if (oq_type & LQC_USRQUOTA_FLAG)
 195                 strcat(stype, "u");
 196         if (oq_type & LQC_GRPQUOTA_FLAG)
 197                 strcat(stype, "g");
 198
 199         strcat(stype, "3");
 200
 201         return snprintf(page, count, "%s\n", stype);
 202 }
 203 EXPORT_SYMBOL(lprocfs_quota_rd_type);
 204
 205 /*
 206  * generic_quota_on is very lazy and tolerant about current quota settings
 207  * @global means to turn on quotas on each OST additionally to local quotas;
 208  * should not be called from filter_quota_ctl on MDS nodes (as it starts
 209  * admin quotas on MDS nodes).
 210  */
 211 int generic_quota_on(struct obd_device *obd, struct obd_quotactl *oqctl, int global)
 212 {
 213         struct obd_device_target *obt = &obd->u.obt;
 214         struct lvfs_run_ctxt saved;
 215         int id, is_master, rc = 0, local; /* means we need a local quotaon */
 216
 217         cfs_down(&obt->obt_quotachecking);
 218         push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 219         id = UGQUOTA2LQC(oqctl->qc_type);
 220         local = (obt->obt_qctxt.lqc_flags & id) != id;
 221
 222         oqctl->qc_cmd = Q_QUOTAON;
 223         oqctl->qc_id = obt->obt_qfmt;
 224
 225         is_master = !strcmp(obd->obd_type->typ_name, LUSTRE_MDS_NAME);
 226         if (is_master) {
 227                 cfs_down_write(&obd->u.mds.mds_qonoff_sem);
 228                 if (local) {
 229                         /* turn on cluster wide quota */
 230                         rc = mds_admin_quota_on(obd, oqctl);
 231                         if (rc && rc != -ENOENT)
 232                                 CERROR("%s: %s admin quotaon failed. rc=%d\n",
 233                                        obd->obd_name, global ? "global":"local",
 234                                        rc);
 235                 }
 236         }
 237
 238         if (rc == 0) {
 239                 if (local) {
 240                         rc = fsfilt_quotactl(obd, obt->obt_sb, oqctl);
 241                         if (rc) {
 242                                 if (rc != -ENOENT)
 243                                         CERROR("%s: %s quotaon failed with"
 244                                                " rc=%d\n", obd->obd_name,
 245                                                global ? "global" : "local", rc);
 246                         } else {
 247                                 obt->obt_qctxt.lqc_flags |= UGQUOTA2LQC(oqctl->qc_type);
 248                                 build_lqs(obd);
 249                         }
 250                 }
 251
 252                 if (rc == 0 && global && is_master)
 253                         rc = obd_quotactl(obd->u.mds.mds_lov_exp, oqctl);
 254         }
 255
 256         if (is_master)
 257                 cfs_up_write(&obd->u.mds.mds_qonoff_sem);
 258
 259         pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 260         cfs_up(&obt->obt_quotachecking);
 261
 262         return rc;
 263 }
 264
 265 static int auto_quota_on(struct obd_device *obd, int type)
 266 {
 267         struct obd_quotactl *oqctl;
 268         int rc;
 269         ENTRY;
 270
 271         LASSERT(type == USRQUOTA || type == GRPQUOTA || type == UGQUOTA);
 272
 273         OBD_ALLOC_PTR(oqctl);
 274         if (!oqctl)
 275                 RETURN(-ENOMEM);
 276
 277         oqctl->qc_type = type;
 278
 279         rc = generic_quota_on(obd, oqctl, 0);
 280
 281         OBD_FREE_PTR(oqctl);
 282         RETURN(rc);
 283 }
 284
 285 int lprocfs_quota_wr_type(struct file *file, const char *buffer,
 286                           unsigned long count, void *data)
 287 {
 288         struct obd_device *obd = (struct obd_device *)data;
 289         struct obd_device_target *obt;
 290         int type = 0, is_mds;
 291         unsigned long i;
 292         char stype[MAX_STYPE_SIZE + 1] = "";
 293
 294         LASSERT(obd != NULL);
 295
 296         obt = &obd->u.obt;
 297
 298         is_mds = !strcmp(obd->obd_type->typ_name, LUSTRE_MDS_NAME);
 299
 300         if (count > MAX_STYPE_SIZE)
 301                 return -EINVAL;
 302
 303         if (cfs_copy_from_user(stype, buffer, count))
 304                 return -EFAULT;
 305
 306         for (i = 0 ; i < count ; i++) {
 307                 switch (stype[i]) {
 308                 case 'u' :
 309                         type |= USER_QUOTA;
 310                         break;
 311                 case 'g' :
 312                         type |= GROUP_QUOTA;
 313                         break;
 314                 case '1' :
 315                 case '2' :
 316                         CWARN("quota_type options 1 and 2 are obsolete, "
 317                               "they will be ignored\n");
 318                         break;
 319                 case '3' : /* the only valid version spec, do nothing */
 320                 default  : /* just skip stray symbols like \n */
 321                         break;
 322                 }
 323         }
 324
 325         if (type != 0) {
 326                 int rc = auto_quota_on(obd, type - 1);
 327
 328                 if (rc && rc != -EALREADY && rc != -ENOENT)
 329                         return rc;
 330         }
 331
 332         return count;
 333 }
 334 EXPORT_SYMBOL(lprocfs_quota_wr_type);
 335
 336 int lprocfs_quota_rd_switch_seconds(char *page, char **start, off_t off,
 337                                     int count, int *eof, void *data)
 338 {
 339         struct obd_device *obd = (struct obd_device *)data;
 340         LASSERT(obd != NULL);
 341
 342         return snprintf(page, count, "%d\n",
 343                         obd->u.obt.obt_qctxt.lqc_switch_seconds);
 344 }
 345 EXPORT_SYMBOL(lprocfs_quota_rd_switch_seconds);
 346
 347 int lprocfs_quota_wr_switch_seconds(struct file *file, const char *buffer,
 348                                     unsigned long count, void *data)
 349 {
 350         struct obd_device *obd = (struct obd_device *)data;
 351         int val, rc;
 352         LASSERT(obd != NULL);
 353
 354         rc = lprocfs_write_helper(buffer, count, &val);
 355         if (rc)
 356                 return rc;
 357
 358         if (val <= 10)
 359                 return -EINVAL;
 360
 361         obd->u.obt.obt_qctxt.lqc_switch_seconds = val;
 362         return count;
 363 }
 364 EXPORT_SYMBOL(lprocfs_quota_wr_switch_seconds);
 365
 366 int lprocfs_quota_rd_sync_blk(char *page, char **start, off_t off,
 367                               int count, int *eof, void *data)
 368 {
 369         struct obd_device *obd = (struct obd_device *)data;
 370         LASSERT(obd != NULL);
 371
 372         return snprintf(page, count, "%d\n",
 373                         obd->u.obt.obt_qctxt.lqc_sync_blk);
 374 }
 375 EXPORT_SYMBOL(lprocfs_quota_rd_sync_blk);
 376
 377 int lprocfs_quota_wr_sync_blk(struct file *file, const char *buffer,
 378                               unsigned long count, void *data)
 379 {
 380         struct obd_device *obd = (struct obd_device *)data;
 381         int val, rc;
 382         LASSERT(obd != NULL);
 383
 384         rc = lprocfs_write_helper(buffer, count, &val);
 385         if (rc)
 386                 return rc;
 387
 388         if (val < 0)
 389                 return -EINVAL;
 390
 391         obd->u.obt.obt_qctxt.lqc_sync_blk = val;
 392         return count;
 393 }
 394 EXPORT_SYMBOL(lprocfs_quota_wr_sync_blk);
 395
 396 int lprocfs_quota_rd_switch_qs(char *page, char **start, off_t off,
 397                                int count, int *eof, void *data)
 398 {
 399         struct obd_device *obd = (struct obd_device *)data;
 400         LASSERT(obd != NULL);
 401
 402         return snprintf(page, count, "changing qunit size is %s\n",
 403                         obd->u.obt.obt_qctxt.lqc_switch_qs ?
 404                         "enabled" : "disabled");
 405 }
 406 EXPORT_SYMBOL(lprocfs_quota_rd_switch_qs);
 407
 408 int lprocfs_quota_wr_switch_qs(struct file *file, const char *buffer,
 409                                unsigned long count, void *data)
 410 {
 411         struct obd_device *obd = (struct obd_device *)data;
 412         int val, rc;
 413         LASSERT(obd != NULL);
 414
 415         rc = lprocfs_write_helper(buffer, count, &val);
 416         if (rc)
 417                 return rc;
 418
 419         if (val)
 420             obd->u.obt.obt_qctxt.lqc_switch_qs = 1;
 421         else
 422             obd->u.obt.obt_qctxt.lqc_switch_qs = 0;
 423
 424         return count;
 425 }
 426 EXPORT_SYMBOL(lprocfs_quota_wr_switch_qs);
 427
 428 int lprocfs_quota_rd_boundary_factor(char *page, char **start, off_t off,
 429                                      int count, int *eof, void *data)
 430 {
 431         struct obd_device *obd = (struct obd_device *)data;
 432         LASSERT(obd != NULL);
 433
 434
 435         return snprintf(page, count, "%lu\n",
 436                         obd->u.obt.obt_qctxt.lqc_cqs_boundary_factor);
 437 }
 438 EXPORT_SYMBOL(lprocfs_quota_rd_boundary_factor);
 439
 440 int lprocfs_quota_wr_boundary_factor(struct file *file, const char *buffer,
 441                                      unsigned long count, void *data)
 442 {
 443         struct obd_device *obd = (struct obd_device *)data;
 444         int val, rc;
 445         LASSERT(obd != NULL);
 446
 447         rc = lprocfs_write_helper(buffer, count, &val);
 448         if (rc)
 449                 return rc;
 450
 451         if (val < 2)
 452                 return -EINVAL;
 453
 454         obd->u.obt.obt_qctxt.lqc_cqs_boundary_factor = val;
 455         return count;
 456 }
 457 EXPORT_SYMBOL(lprocfs_quota_wr_boundary_factor);
 458
 459 int lprocfs_quota_rd_least_bunit(char *page, char **start, off_t off,
 460                                  int count, int *eof, void *data)
 461 {
 462         struct obd_device *obd = (struct obd_device *)data;
 463         LASSERT(obd != NULL);
 464
 465
 466         return snprintf(page, count, "%lu\n",
 467                         obd->u.obt.obt_qctxt.lqc_cqs_least_bunit);
 468 }
 469 EXPORT_SYMBOL(lprocfs_quota_rd_least_bunit);
 470
 471 int lprocfs_quota_wr_least_bunit(struct file *file, const char *buffer,
 472                                  unsigned long count, void *data)
 473 {
 474         struct obd_device *obd = (struct obd_device *)data;
 475         int val, rc;
 476         LASSERT(obd != NULL);
 477
 478         rc = lprocfs_write_helper(buffer, count, &val);
 479         if (rc)
 480                 return rc;
 481
 482         if (val < PTLRPC_MAX_BRW_SIZE ||
 483             val >= obd->u.obt.obt_qctxt.lqc_bunit_sz)
 484                 return -EINVAL;
 485
 486         obd->u.obt.obt_qctxt.lqc_cqs_least_bunit = val;
 487         return count;
 488 }
 489 EXPORT_SYMBOL(lprocfs_quota_wr_least_bunit);
 490
 491 int lprocfs_quota_rd_least_iunit(char *page, char **start, off_t off,
 492                                  int count, int *eof, void *data)
 493 {
 494         struct obd_device *obd = (struct obd_device *)data;
 495         LASSERT(obd != NULL);
 496
 497
 498         return snprintf(page, count, "%lu\n",
 499                         obd->u.obt.obt_qctxt.lqc_cqs_least_iunit);
 500 }
 501 EXPORT_SYMBOL(lprocfs_quota_rd_least_iunit);
 502
 503 int lprocfs_quota_wr_least_iunit(struct file *file, const char *buffer,
 504                                  unsigned long count, void *data)
 505 {
 506         struct obd_device *obd = (struct obd_device *)data;
 507         int val, rc;
 508         LASSERT(obd != NULL);
 509
 510         rc = lprocfs_write_helper(buffer, count, &val);
 511         if (rc)
 512                 return rc;
 513
 514         if (val < 1 || val >= obd->u.obt.obt_qctxt.lqc_iunit_sz)
 515                 return -EINVAL;
 516
 517         obd->u.obt.obt_qctxt.lqc_cqs_least_iunit = val;
 518         return count;
 519 }
 520 EXPORT_SYMBOL(lprocfs_quota_wr_least_iunit);
 521
 522 int lprocfs_quota_rd_qs_factor(char *page, char **start, off_t off,
 523                                int count, int *eof, void *data)
 524 {
 525         struct obd_device *obd = (struct obd_device *)data;
 526         LASSERT(obd != NULL);
 527
 528
 529         return snprintf(page, count, "%lu\n",
 530                         obd->u.obt.obt_qctxt.lqc_cqs_qs_factor);
 531 }
 532 EXPORT_SYMBOL(lprocfs_quota_rd_qs_factor);
 533
 534 int lprocfs_quota_wr_qs_factor(struct file *file, const char *buffer,
 535                                unsigned long count, void *data)
 536 {
 537         struct obd_device *obd = (struct obd_device *)data;
 538         int val, rc;
 539         LASSERT(obd != NULL);
 540
 541         rc = lprocfs_write_helper(buffer, count, &val);
 542         if (rc)
 543                 return rc;
 544
 545         if (val < 2)
 546                 return -EINVAL;
 547
 548         obd->u.obt.obt_qctxt.lqc_cqs_qs_factor = val;
 549         return count;
 550 }
 551 EXPORT_SYMBOL(lprocfs_quota_wr_qs_factor);
 552
 553 struct lprocfs_vars lprocfs_quota_common_vars[] = {
 554         { "quota_bunit_sz", lprocfs_quota_rd_bunit,
 555                             lprocfs_quota_wr_bunit, 0},
 556         { "quota_btune_sz", lprocfs_quota_rd_btune,
 557                             lprocfs_quota_wr_btune, 0},
 558         { "quota_iunit_sz", lprocfs_quota_rd_iunit,
 559                             lprocfs_quota_wr_iunit, 0},
 560         { "quota_itune_sz", lprocfs_quota_rd_itune,
 561                             lprocfs_quota_wr_itune, 0},
 562         { "quota_type",     lprocfs_quota_rd_type,
 563                             lprocfs_quota_wr_type, 0},
 564         { "quota_switch_seconds",  lprocfs_quota_rd_switch_seconds,
 565                                    lprocfs_quota_wr_switch_seconds, 0 },
 566         { "quota_sync_blk", lprocfs_quota_rd_sync_blk,
 567                             lprocfs_quota_wr_sync_blk, 0},
 568         { NULL }
 569 };
 570
 571 struct lprocfs_vars lprocfs_quota_master_vars[] = {
 572         { "quota_switch_qs", lprocfs_quota_rd_switch_qs,
 573                              lprocfs_quota_wr_switch_qs, 0 },
 574         { "quota_boundary_factor", lprocfs_quota_rd_boundary_factor,
 575                                    lprocfs_quota_wr_boundary_factor, 0 },
 576         { "quota_least_bunit", lprocfs_quota_rd_least_bunit,
 577                                lprocfs_quota_wr_least_bunit, 0 },
 578         { "quota_least_iunit", lprocfs_quota_rd_least_iunit,
 579                                lprocfs_quota_wr_least_iunit, 0 },
 580         { "quota_qs_factor",   lprocfs_quota_rd_qs_factor,
 581                                lprocfs_quota_wr_qs_factor, 0 },
 582         { NULL }
 583 };
 584
 585 int lquota_proc_setup(struct obd_device *obd, int is_master)
 586 {
 587         struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
 588         int rc = 0;
 589         ENTRY;
 590
 591         LASSERT(lquota_type_proc_dir && obd);
 592         qctxt->lqc_proc_dir = lprocfs_register(obd->obd_name,
 593                                                lquota_type_proc_dir,
 594                                                lprocfs_quota_common_vars, obd);
 595         if (IS_ERR(qctxt->lqc_proc_dir)) {
 596                 rc = PTR_ERR(qctxt->lqc_proc_dir);
 597                 CERROR("%s: error %d setting up lprocfs\n",
 598                        obd->obd_name, rc);
 599                 qctxt->lqc_proc_dir = NULL;
 600                 GOTO(out, rc);
 601         }
 602
 603         if (is_master) {
 604                 rc = lprocfs_add_vars(qctxt->lqc_proc_dir,
 605                                       lprocfs_quota_master_vars, obd);
 606                 if (rc) {
 607                         CERROR("%s: error %d setting up lprocfs for "
 608                                "quota master\n", obd->obd_name, rc);
 609                         GOTO(out_free_proc, rc);
 610                 }
 611         }
 612
 613         qctxt->lqc_stats = lprocfs_alloc_stats(LQUOTA_LAST_STAT -
 614                                                LQUOTA_FIRST_STAT, 0);
 615         if (!qctxt->lqc_stats)
 616                 GOTO(out_free_proc, rc = -ENOMEM);
 617
 618         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_SYNC_ACQ,
 619                              LPROCFS_CNTR_AVGMINMAX, "sync_acq_req", "us");
 620         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_SYNC_REL,
 621                              LPROCFS_CNTR_AVGMINMAX, "sync_rel_req", "us");
 622         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ASYNC_ACQ,
 623                              LPROCFS_CNTR_AVGMINMAX, "async_acq_req", "us");
 624         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ASYNC_REL,
 625                              LPROCFS_CNTR_AVGMINMAX, "async_rel_req", "us");
 626
 627         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_CHK_BLK,
 628                              LPROCFS_CNTR_AVGMINMAX,
 629                              "wait_for_blk_quota(lquota_chkquota)", "us");
 630         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_CHK_INO,
 631                              LPROCFS_CNTR_AVGMINMAX,
 632                              "wait_for_ino_quota(lquota_chkquota)", "us");
 633         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_COMMIT_BLK,
 634                              LPROCFS_CNTR_AVGMINMAX,
 635                              "wait_for_blk_quota(lquota_pending_commit)",
 636                              "us");
 637         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_COMMIT_INO,
 638                              LPROCFS_CNTR_AVGMINMAX,
 639                              "wait_for_ino_quota(lquota_pending_commit)",
 640                              "us");
 641
 642         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_PENDING_BLK_QUOTA,
 643                              LPROCFS_CNTR_AVGMINMAX,
 644                              "wait_for_pending_blk_quota_req"
 645                              "(qctxt_wait_pending_dqacq)", "us");
 646         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_PENDING_INO_QUOTA,
 647                              LPROCFS_CNTR_AVGMINMAX,
 648                              "wait_for_pending_ino_quota_req"
 649                              "(qctxt_wait_pending_dqacq)", "us");
 650         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_NOWAIT_PENDING_BLK_QUOTA,
 651                              LPROCFS_CNTR_AVGMINMAX,
 652                              "nowait_for_pending_blk_quota_req"
 653                              "(qctxt_wait_pending_dqacq)", "us");
 654         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_NOWAIT_PENDING_INO_QUOTA,
 655                              LPROCFS_CNTR_AVGMINMAX,
 656                              "nowait_for_pending_ino_quota_req"
 657                              "(qctxt_wait_pending_dqacq)", "us");
 658
 659         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_QUOTA_CTL,
 660                              LPROCFS_CNTR_AVGMINMAX, "quota_ctl", "us");
 661         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ADJUST_QUNIT,
 662                              LPROCFS_CNTR_AVGMINMAX, "adjust_qunit", "us");
 663
 664         lprocfs_register_stats(qctxt->lqc_proc_dir, "stats", qctxt->lqc_stats);
 665
 666         RETURN(rc);
 667
 668 out_free_proc:
 669         lprocfs_remove(&qctxt->lqc_proc_dir);
 670 out:
 671         RETURN(rc);
 672 }
 673
 674 int lquota_proc_cleanup(struct lustre_quota_ctxt *qctxt)
 675 {
 676         if (!qctxt || !qctxt->lqc_proc_dir)
 677                 return -EINVAL;
 678
 679         if (qctxt->lqc_stats != NULL)
 680                  lprocfs_free_stats(&qctxt->lqc_stats);
 681
 682         lprocfs_remove(&qctxt->lqc_proc_dir);
 683         return 0;
 684 }
 685
 686 #endif  /* LPROCFS */
 687 #endif