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