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 static int auto_quota_on(struct obd_device *obd, int type,
 206                          struct super_block *sb, int is_master)
 207 {
 208         struct obd_quotactl *oqctl;
 209         struct lvfs_run_ctxt saved;
 210         int rc = 0, rc1 = 0, id;
 211         struct obd_device_target *obt = &obd->u.obt;
 212         struct lustre_quota_ctxt *qctxt = &obt->obt_qctxt;
 213         struct mds_obd *mds = NULL;
 214         ENTRY;
 215
 216         LASSERT(type == USRQUOTA || type == GRPQUOTA || type == UGQUOTA);
 217
 218         OBD_ALLOC_PTR(oqctl);
 219         if (!oqctl)
 220                 RETURN(-ENOMEM);
 221
 222         down(&obt->obt_quotachecking);
 223         id = UGQUOTA2LQC(type);
 224         /* quota already turned on */
 225         if ((obt->obt_qctxt.lqc_flags & id) == id)
 226                 GOTO(out, rc);
 227
 228         if (obt->obt_qctxt.lqc_immutable) {
 229                 LCONSOLE_ERROR("Failed to turn Quota on, immutable mode "
 230                                "(is SOM enabled?)\n");
 231                 GOTO(out, rc = -ECANCELED);
 232         }
 233
 234         oqctl->qc_type = type;
 235         oqctl->qc_cmd = Q_QUOTAON;
 236         oqctl->qc_id = obt->obt_qfmt;
 237
 238         push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 239
 240         if (is_master) {
 241                 mds = &obd->u.mds;
 242                 down(&mds->mds_qonoff_sem);
 243                 /* turn on cluster wide quota */
 244                 rc1 = mds_admin_quota_on(obd, oqctl);
 245                 if (rc1 && rc1 != -EALREADY) {
 246                         CDEBUG(rc1 == -ENOENT ? D_QUOTA : D_ERROR,
 247                                "auto-enable admin quota failed. rc=%d\n", rc1);
 248                         GOTO(out_ctxt, rc1);
 249                 }
 250         }
 251
 252         /* turn on local quota */
 253         rc = fsfilt_quotactl(obd, sb, oqctl);
 254         if (!rc) {
 255                 obt->obt_qctxt.lqc_flags |= UGQUOTA2LQC(type);
 256                 build_lqs(obd);
 257         } else if (rc == -EBUSY && quota_is_on(qctxt, oqctl)) {
 258                 CWARN("mds local quota[%d] is on already\n", oqctl->qc_type);
 259                 rc = -EALREADY;
 260         } else {
 261                 CDEBUG(rc == -ENOENT ? D_QUOTA : D_ERROR,
 262                        "auto-enable local quota failed. rc=%d\n", rc);
 263                 if (rc1 == -EALREADY) {
 264                         oqctl->qc_cmd = Q_QUOTAOFF;
 265                         mds_admin_quota_off(obd, oqctl);
 266                 }
 267                 GOTO(out_ctxt, rc);
 268         }
 269
 270         EXIT;
 271
 272 out_ctxt:
 273         if (mds != NULL)
 274                 up(&mds->mds_qonoff_sem);
 275         pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 276
 277 out:
 278         up(&obt->obt_quotachecking);
 279         OBD_FREE_PTR(oqctl);
 280         return rc;
 281 }
 282
 283 int lprocfs_quota_wr_type(struct file *file, const char *buffer,
 284                           unsigned long count, void *data)
 285 {
 286         struct obd_device *obd = (struct obd_device *)data;
 287         struct obd_device_target *obt;
 288         int type = 0, is_mds;
 289         unsigned long i;
 290         char stype[MAX_STYPE_SIZE + 1] = "";
 291
 292         LASSERT(obd != NULL);
 293
 294         obt = &obd->u.obt;
 295
 296         is_mds = !strcmp(obd->obd_type->typ_name, LUSTRE_MDS_NAME);
 297
 298         if (count > MAX_STYPE_SIZE)
 299                 return -EINVAL;
 300
 301         if (copy_from_user(stype, buffer, count))
 302                 return -EFAULT;
 303
 304         for (i = 0 ; i < count ; i++) {
 305                 switch (stype[i]) {
 306                 case 'u' :
 307                         type |= USER_QUOTA;
 308                         break;
 309                 case 'g' :
 310                         type |= GROUP_QUOTA;
 311                         break;
 312                 case '1' :
 313                 case '2' :
 314                         CWARN("quota_type options 1 and 2 are obsolete, "
 315                               "they will be ignored\n");
 316                         break;
 317                 case '3' : /* the only valid version spec, do nothing */
 318                 default  : /* just skip stray symbols like \n */
 319                         break;
 320                 }
 321         }
 322
 323         if (type != 0) {
 324                 int rc = auto_quota_on(obd, type - 1, obt->obt_sb, is_mds);
 325
 326                 if (rc && rc != -EALREADY)
 327                         return rc;
 328         }
 329
 330         return count;
 331 }
 332 EXPORT_SYMBOL(lprocfs_quota_wr_type);
 333
 334 int lprocfs_quota_rd_switch_seconds(char *page, char **start, off_t off,
 335                                     int count, int *eof, void *data)
 336 {
 337         struct obd_device *obd = (struct obd_device *)data;
 338         LASSERT(obd != NULL);
 339
 340         return snprintf(page, count, "%d\n",
 341                         obd->u.obt.obt_qctxt.lqc_switch_seconds);
 342 }
 343 EXPORT_SYMBOL(lprocfs_quota_rd_switch_seconds);
 344
 345 int lprocfs_quota_wr_switch_seconds(struct file *file, const char *buffer,
 346                                     unsigned long count, void *data)
 347 {
 348         struct obd_device *obd = (struct obd_device *)data;
 349         int val, rc;
 350         LASSERT(obd != NULL);
 351
 352         rc = lprocfs_write_helper(buffer, count, &val);
 353         if (rc)
 354                 return rc;
 355
 356         if (val <= 10)
 357                 return -EINVAL;
 358
 359         obd->u.obt.obt_qctxt.lqc_switch_seconds = val;
 360         return count;
 361 }
 362 EXPORT_SYMBOL(lprocfs_quota_wr_switch_seconds);
 363
 364 int lprocfs_quota_rd_sync_blk(char *page, char **start, off_t off,
 365                               int count, int *eof, void *data)
 366 {
 367         struct obd_device *obd = (struct obd_device *)data;
 368         LASSERT(obd != NULL);
 369
 370         return snprintf(page, count, "%d\n",
 371                         obd->u.obt.obt_qctxt.lqc_sync_blk);
 372 }
 373 EXPORT_SYMBOL(lprocfs_quota_rd_sync_blk);
 374
 375 int lprocfs_quota_wr_sync_blk(struct file *file, const char *buffer,
 376                               unsigned long count, void *data)
 377 {
 378         struct obd_device *obd = (struct obd_device *)data;
 379         int val, rc;
 380         LASSERT(obd != NULL);
 381
 382         rc = lprocfs_write_helper(buffer, count, &val);
 383         if (rc)
 384                 return rc;
 385
 386         if (val < 0)
 387                 return -EINVAL;
 388
 389         obd->u.obt.obt_qctxt.lqc_sync_blk = val;
 390         return count;
 391 }
 392 EXPORT_SYMBOL(lprocfs_quota_wr_sync_blk);
 393
 394 int lprocfs_quota_rd_switch_qs(char *page, char **start, off_t off,
 395                                int count, int *eof, void *data)
 396 {
 397         struct obd_device *obd = (struct obd_device *)data;
 398         LASSERT(obd != NULL);
 399
 400         return snprintf(page, count, "changing qunit size is %s\n",
 401                         obd->u.obt.obt_qctxt.lqc_switch_qs ?
 402                         "enabled" : "disabled");
 403 }
 404 EXPORT_SYMBOL(lprocfs_quota_rd_switch_qs);
 405
 406 int lprocfs_quota_wr_switch_qs(struct file *file, const char *buffer,
 407                                unsigned long count, void *data)
 408 {
 409         struct obd_device *obd = (struct obd_device *)data;
 410         int val, rc;
 411         LASSERT(obd != NULL);
 412
 413         rc = lprocfs_write_helper(buffer, count, &val);
 414         if (rc)
 415                 return rc;
 416
 417         if (val)
 418             obd->u.obt.obt_qctxt.lqc_switch_qs = 1;
 419         else
 420             obd->u.obt.obt_qctxt.lqc_switch_qs = 0;
 421
 422         return count;
 423 }
 424 EXPORT_SYMBOL(lprocfs_quota_wr_switch_qs);
 425
 426 int lprocfs_quota_rd_boundary_factor(char *page, char **start, off_t off,
 427                                      int count, int *eof, void *data)
 428 {
 429         struct obd_device *obd = (struct obd_device *)data;
 430         LASSERT(obd != NULL);
 431
 432
 433         return snprintf(page, count, "%lu\n",
 434                         obd->u.obt.obt_qctxt.lqc_cqs_boundary_factor);
 435 }
 436 EXPORT_SYMBOL(lprocfs_quota_rd_boundary_factor);
 437
 438 int lprocfs_quota_wr_boundary_factor(struct file *file, const char *buffer,
 439                                      unsigned long count, void *data)
 440 {
 441         struct obd_device *obd = (struct obd_device *)data;
 442         int val, rc;
 443         LASSERT(obd != NULL);
 444
 445         rc = lprocfs_write_helper(buffer, count, &val);
 446         if (rc)
 447                 return rc;
 448
 449         if (val < 2)
 450                 return -EINVAL;
 451
 452         obd->u.obt.obt_qctxt.lqc_cqs_boundary_factor = val;
 453         return count;
 454 }
 455 EXPORT_SYMBOL(lprocfs_quota_wr_boundary_factor);
 456
 457 int lprocfs_quota_rd_least_bunit(char *page, char **start, off_t off,
 458                                  int count, int *eof, void *data)
 459 {
 460         struct obd_device *obd = (struct obd_device *)data;
 461         LASSERT(obd != NULL);
 462
 463
 464         return snprintf(page, count, "%lu\n",
 465                         obd->u.obt.obt_qctxt.lqc_cqs_least_bunit);
 466 }
 467 EXPORT_SYMBOL(lprocfs_quota_rd_least_bunit);
 468
 469 int lprocfs_quota_wr_least_bunit(struct file *file, const char *buffer,
 470                                  unsigned long count, void *data)
 471 {
 472         struct obd_device *obd = (struct obd_device *)data;
 473         int val, rc;
 474         LASSERT(obd != NULL);
 475
 476         rc = lprocfs_write_helper(buffer, count, &val);
 477         if (rc)
 478                 return rc;
 479
 480         if (val < PTLRPC_MAX_BRW_SIZE ||
 481             val >= obd->u.obt.obt_qctxt.lqc_bunit_sz)
 482                 return -EINVAL;
 483
 484         obd->u.obt.obt_qctxt.lqc_cqs_least_bunit = val;
 485         return count;
 486 }
 487 EXPORT_SYMBOL(lprocfs_quota_wr_least_bunit);
 488
 489 int lprocfs_quota_rd_least_iunit(char *page, char **start, off_t off,
 490                                  int count, int *eof, void *data)
 491 {
 492         struct obd_device *obd = (struct obd_device *)data;
 493         LASSERT(obd != NULL);
 494
 495
 496         return snprintf(page, count, "%lu\n",
 497                         obd->u.obt.obt_qctxt.lqc_cqs_least_iunit);
 498 }
 499 EXPORT_SYMBOL(lprocfs_quota_rd_least_iunit);
 500
 501 int lprocfs_quota_wr_least_iunit(struct file *file, const char *buffer,
 502                                  unsigned long count, void *data)
 503 {
 504         struct obd_device *obd = (struct obd_device *)data;
 505         int val, rc;
 506         LASSERT(obd != NULL);
 507
 508         rc = lprocfs_write_helper(buffer, count, &val);
 509         if (rc)
 510                 return rc;
 511
 512         if (val < 1 || val >= obd->u.obt.obt_qctxt.lqc_iunit_sz)
 513                 return -EINVAL;
 514
 515         obd->u.obt.obt_qctxt.lqc_cqs_least_iunit = val;
 516         return count;
 517 }
 518 EXPORT_SYMBOL(lprocfs_quota_wr_least_iunit);
 519
 520 int lprocfs_quota_rd_qs_factor(char *page, char **start, off_t off,
 521                                int count, int *eof, void *data)
 522 {
 523         struct obd_device *obd = (struct obd_device *)data;
 524         LASSERT(obd != NULL);
 525
 526
 527         return snprintf(page, count, "%lu\n",
 528                         obd->u.obt.obt_qctxt.lqc_cqs_qs_factor);
 529 }
 530 EXPORT_SYMBOL(lprocfs_quota_rd_qs_factor);
 531
 532 int lprocfs_quota_wr_qs_factor(struct file *file, const char *buffer,
 533                                unsigned long count, void *data)
 534 {
 535         struct obd_device *obd = (struct obd_device *)data;
 536         int val, rc;
 537         LASSERT(obd != NULL);
 538
 539         rc = lprocfs_write_helper(buffer, count, &val);
 540         if (rc)
 541                 return rc;
 542
 543         if (val < 2)
 544                 return -EINVAL;
 545
 546         obd->u.obt.obt_qctxt.lqc_cqs_qs_factor = val;
 547         return count;
 548 }
 549 EXPORT_SYMBOL(lprocfs_quota_wr_qs_factor);
 550
 551 struct lprocfs_vars lprocfs_quota_common_vars[] = {
 552         { "quota_bunit_sz", lprocfs_quota_rd_bunit,
 553                             lprocfs_quota_wr_bunit, 0},
 554         { "quota_btune_sz", lprocfs_quota_rd_btune,
 555                             lprocfs_quota_wr_btune, 0},
 556         { "quota_iunit_sz", lprocfs_quota_rd_iunit,
 557                             lprocfs_quota_wr_iunit, 0},
 558         { "quota_itune_sz", lprocfs_quota_rd_itune,
 559                             lprocfs_quota_wr_itune, 0},
 560         { "quota_type",     lprocfs_quota_rd_type,
 561                             lprocfs_quota_wr_type, 0},
 562         { "quota_switch_seconds",  lprocfs_quota_rd_switch_seconds,
 563                                    lprocfs_quota_wr_switch_seconds, 0 },
 564         { "quota_sync_blk", lprocfs_quota_rd_sync_blk,
 565                             lprocfs_quota_wr_sync_blk, 0},
 566         { NULL }
 567 };
 568
 569 struct lprocfs_vars lprocfs_quota_master_vars[] = {
 570         { "quota_switch_qs", lprocfs_quota_rd_switch_qs,
 571                              lprocfs_quota_wr_switch_qs, 0 },
 572         { "quota_boundary_factor", lprocfs_quota_rd_boundary_factor,
 573                                    lprocfs_quota_wr_boundary_factor, 0 },
 574         { "quota_least_bunit", lprocfs_quota_rd_least_bunit,
 575                                lprocfs_quota_wr_least_bunit, 0 },
 576         { "quota_least_iunit", lprocfs_quota_rd_least_iunit,
 577                                lprocfs_quota_wr_least_iunit, 0 },
 578         { "quota_qs_factor",   lprocfs_quota_rd_qs_factor,
 579                                lprocfs_quota_wr_qs_factor, 0 },
 580         { NULL }
 581 };
 582
 583 int lquota_proc_setup(struct obd_device *obd, int is_master)
 584 {
 585         struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
 586         int rc = 0;
 587         ENTRY;
 588
 589         LASSERT(lquota_type_proc_dir && obd);
 590         qctxt->lqc_proc_dir = lprocfs_register(obd->obd_name,
 591                                                lquota_type_proc_dir,
 592                                                lprocfs_quota_common_vars, obd);
 593         if (IS_ERR(qctxt->lqc_proc_dir)) {
 594                 rc = PTR_ERR(qctxt->lqc_proc_dir);
 595                 CERROR("error %d setting up lprocfs for %s\n", rc,
 596                        obd->obd_name);
 597                 qctxt->lqc_proc_dir = NULL;
 598                 GOTO(out, rc);
 599         }
 600
 601         if (is_master) {
 602                 rc = lprocfs_add_vars(qctxt->lqc_proc_dir,
 603                                       lprocfs_quota_master_vars, obd);
 604                 if (rc) {
 605                         CERROR("error %d setting up lprocfs for %s"
 606                                "(quota master)\n", rc, obd->obd_name);
 607                         GOTO(out_free_proc, rc);
 608                 }
 609         }
 610
 611         qctxt->lqc_stats = lprocfs_alloc_stats(LQUOTA_LAST_STAT -
 612                                                LQUOTA_FIRST_STAT, 0);
 613         if (!qctxt->lqc_stats)
 614                 GOTO(out_free_proc, rc = -ENOMEM);
 615
 616         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_SYNC_ACQ,
 617                              LPROCFS_CNTR_AVGMINMAX, "sync_acq_req", "us");
 618         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_SYNC_REL,
 619                              LPROCFS_CNTR_AVGMINMAX, "sync_rel_req", "us");
 620         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ASYNC_ACQ,
 621                              LPROCFS_CNTR_AVGMINMAX, "async_acq_req", "us");
 622         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ASYNC_REL,
 623                              LPROCFS_CNTR_AVGMINMAX, "async_rel_req", "us");
 624
 625         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_CHK_BLK,
 626                              LPROCFS_CNTR_AVGMINMAX,
 627                              "wait_for_blk_quota(lquota_chkquota)", "us");
 628         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_CHK_INO,
 629                              LPROCFS_CNTR_AVGMINMAX,
 630                              "wait_for_ino_quota(lquota_chkquota)", "us");
 631         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_COMMIT_BLK,
 632                              LPROCFS_CNTR_AVGMINMAX,
 633                              "wait_for_blk_quota(lquota_pending_commit)",
 634                              "us");
 635         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_COMMIT_INO,
 636                              LPROCFS_CNTR_AVGMINMAX,
 637                              "wait_for_ino_quota(lquota_pending_commit)",
 638                              "us");
 639
 640         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_PENDING_BLK_QUOTA,
 641                              LPROCFS_CNTR_AVGMINMAX,
 642                              "wait_for_pending_blk_quota_req"
 643                              "(qctxt_wait_pending_dqacq)", "us");
 644         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_PENDING_INO_QUOTA,
 645                              LPROCFS_CNTR_AVGMINMAX,
 646                              "wait_for_pending_ino_quota_req"
 647                              "(qctxt_wait_pending_dqacq)", "us");
 648         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_NOWAIT_PENDING_BLK_QUOTA,
 649                              LPROCFS_CNTR_AVGMINMAX,
 650                              "nowait_for_pending_blk_quota_req"
 651                              "(qctxt_wait_pending_dqacq)", "us");
 652         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_NOWAIT_PENDING_INO_QUOTA,
 653                              LPROCFS_CNTR_AVGMINMAX,
 654                              "nowait_for_pending_ino_quota_req"
 655                              "(qctxt_wait_pending_dqacq)", "us");
 656
 657         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_QUOTA_CTL,
 658                              LPROCFS_CNTR_AVGMINMAX, "quota_ctl", "us");
 659         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ADJUST_QUNIT,
 660                              LPROCFS_CNTR_AVGMINMAX, "adjust_qunit", "us");
 661
 662         lprocfs_register_stats(qctxt->lqc_proc_dir, "stats", qctxt->lqc_stats);
 663
 664         RETURN(rc);
 665
 666 out_free_proc:
 667         lprocfs_remove(&qctxt->lqc_proc_dir);
 668 out:
 669         RETURN(rc);
 670 }
 671
 672 int lquota_proc_cleanup(struct lustre_quota_ctxt *qctxt)
 673 {
 674         if (!qctxt || !qctxt->lqc_proc_dir)
 675                 return -EINVAL;
 676
 677         if (qctxt->lqc_stats != NULL)
 678                  lprocfs_free_stats(&qctxt->lqc_stats);
 679
 680         lprocfs_remove(&qctxt->lqc_proc_dir);
 681         return 0;
 682 }
 683
 684 #endif  /* LPROCFS */
 685 #endif