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 /* The following information about CURRENT quotas is expected on the output:
 179  * MDS: u for user quotas (administrative+operational) turned on,
 180  *      g for group quotas (administrative+operational) turned on,
 181  *      1 for 32-bit operational quotas and 32-bit administrative quotas,
 182  *      2 for 32-bit operational quotas and 64-bit administrative quotas,
 183  *      3 for 64-bit operational quotas and 64-bit administrative quotas
 184  * OST: u for user quotas (operational) turned on,
 185  *      g for group quotas (operational) turned on,
 186  *      1 for 32-bit local operational quotas,
 187  *      3 for 64-bit local operational quotas,
 188  * Permanent parameters can be read with lctl (?)
 189  */
 190 int lprocfs_quota_rd_type(char *page, char **start, off_t off, int count,
 191                           int *eof, void *data)
 192 {
 193         struct obd_device *obd = (struct obd_device *)data;
 194         char stype[MAX_STYPE_SIZE + 1] = "";
 195         int oq_type, rc, is_mds;
 196         lustre_quota_version_t aq_version, oq_version;
 197         struct obd_device_target *obt;
 198
 199         LASSERT(obd != NULL);
 200
 201         obt = &obd->u.obt;
 202         is_mds = !strcmp(obd->obd_type->typ_name, LUSTRE_MDS_NAME);
 203
 204         /* Collect the needed information */
 205         oq_type = obd->u.obt.obt_qctxt.lqc_flags;
 206         if (is_mds) {
 207                 rc = mds_quota_get_version(obd, &aq_version, &oq_version);
 208                 if (rc)
 209                         return -EPROTO;
 210         } else {
 211                 oq_version = obt->obt_qfmt;
 212         }
 213
 214         /* Transform the collected data into a user-readable string */
 215         if (oq_type & LQC_USRQUOTA_FLAG)
 216                 strcat(stype, "u");
 217         if (oq_type & LQC_GRPQUOTA_FLAG)
 218                 strcat(stype, "g");
 219
 220         if ((!is_mds || aq_version == LUSTRE_QUOTA_V1) &&
 221             oq_version == LUSTRE_QUOTA_V1)
 222                 strcat(stype, "1");
 223 #ifdef HAVE_QUOTA64
 224         else if ((!is_mds || aq_version == LUSTRE_QUOTA_V2) &&
 225                  oq_version == LUSTRE_QUOTA_V2)
 226                 strcat(stype, "3");
 227 #endif
 228         else if (is_mds && aq_version == LUSTRE_QUOTA_V2 &&
 229                  oq_version == LUSTRE_QUOTA_V1)
 230                 strcat(stype, "2");
 231         else
 232                 return -EPROTO;
 233
 234         return snprintf(page, count, "%s\n", stype);
 235 }
 236 EXPORT_SYMBOL(lprocfs_quota_rd_type);
 237
 238 /*
 239  * generic_quota_on is very lazy and tolerant about current quota settings
 240  * @global means to turn on quotas on each OST additionally to local quotas;
 241  * should not be called from filter_quota_ctl on MDS nodes (as it starts
 242  * admin quotas on MDS nodes).
 243  */
 244 int generic_quota_on(struct obd_device *obd, struct obd_quotactl *oqctl, int global)
 245 {
 246         struct obd_device_target *obt = &obd->u.obt;
 247         struct lvfs_run_ctxt saved;
 248         int id, is_master, rc = 0, local; /* means we need a local quotaon */
 249
 250         if (!atomic_dec_and_test(&obt->obt_quotachecking)) {
 251                 CDEBUG(D_INFO, "other people are doing quotacheck\n");
 252                 atomic_inc(&obt->obt_quotachecking);
 253                 RETURN(-EBUSY);
 254         }
 255
 256         id = UGQUOTA2LQC(oqctl->qc_type);
 257         local = (obt->obt_qctxt.lqc_flags & id) != id;
 258
 259         oqctl->qc_cmd = Q_QUOTAON;
 260         oqctl->qc_id = obt->obt_qfmt;
 261
 262         is_master= !strcmp(obd->obd_type->typ_name, LUSTRE_MDS_NAME);
 263         if (is_master && local) {
 264                 down(&obd->u.mds.mds_qonoff_sem);
 265                 push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 266                 /* turn on cluster wide quota */
 267                 rc = mds_admin_quota_on(obd, oqctl);
 268                 pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 269                 if (rc && rc != -ENOENT)
 270                         CERROR("%s: %s admin quotaon failed. rc=%d\n",
 271                                obd->obd_name, global ? "global" : "local", rc);
 272         }
 273
 274         if (rc == 0) {
 275                 if (local) {
 276                         push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 277                         /* turn on local quota */
 278                         rc = fsfilt_quotactl(obd, obt->obt_sb, oqctl);
 279                         pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 280                         if (rc) {
 281                                 if (rc != -ENOENT)
 282                                         CERROR("%s: %s quotaon failed with"
 283                                                " rc=%d\n", obd->obd_name,
 284                                                global ? "global" : "local", rc);
 285                         } else {
 286                                 obt->obt_qctxt.lqc_flags |= UGQUOTA2LQC(oqctl->qc_type);
 287                         }
 288                 }
 289
 290                 if (rc == 0 && global && is_master)
 291                         rc = obd_quotactl(obd->u.mds.mds_lov_exp, oqctl);
 292         }
 293
 294         if (is_master)
 295                 up(&obd->u.mds.mds_qonoff_sem);
 296
 297         atomic_inc(&obt->obt_quotachecking);
 298
 299         return rc;
 300 }
 301
 302 static int auto_quota_on(struct obd_device *obd, int type)
 303 {
 304         struct obd_quotactl *oqctl;
 305         int rc;
 306         ENTRY;
 307
 308         LASSERT(type == USRQUOTA || type == GRPQUOTA || type == UGQUOTA);
 309
 310         OBD_ALLOC_PTR(oqctl);
 311         if (!oqctl)
 312                 RETURN(-ENOMEM);
 313
 314         oqctl->qc_type = type;
 315
 316         rc = generic_quota_on(obd, oqctl, 0);
 317
 318         OBD_FREE_PTR(oqctl);
 319         RETURN(rc);
 320 }
 321
 322 static int filter_quota_set_version(struct obd_device *obd,
 323                                     lustre_quota_version_t version)
 324 {
 325         struct obd_device_target *obt = &obd->u.obt;
 326
 327         if (version != LUSTRE_QUOTA_V1) {
 328 #ifdef HAVE_QUOTA64
 329                 if (version != LUSTRE_QUOTA_V2)
 330 #endif
 331                         return -EINVAL;
 332         }
 333
 334         if (!atomic_dec_and_test(&obt->obt_quotachecking)) {
 335                 CDEBUG(D_INFO, "other people are doing quotacheck\n");
 336                 atomic_inc(&obt->obt_quotachecking);
 337                 return -EBUSY;
 338         }
 339
 340         /* do not complain of being busy if we actually have nothing to do */
 341         if (obt->obt_qfmt != version) {
 342                 if (obt->obt_qctxt.lqc_flags&(LQC_USRQUOTA_FLAG|LQC_GRPQUOTA_FLAG)){
 343                         atomic_inc(&obt->obt_quotachecking);
 344                         return -EBUSY;
 345                 }
 346                 obt->obt_qfmt = version;
 347         }
 348
 349         atomic_inc(&obt->obt_quotachecking);
 350
 351         return 0;
 352 }
 353
 354 /* The following settings of CURRENT quotas is expected on the input:
 355  * MDS: u for user quotas (administrative+operational) turned on,
 356  *      g for group quotas (administrative+operational) turned on,
 357  *      1 for 32-bit operational quotas and 32-bit administrative quotas,
 358  *      2 for 32-bit operational quotas and 64-bit administrative quotas,
 359  *      3 for 64-bit operational quotas and 64-bit administrative quotas
 360  * OST: u for user quotas (operational) turned on,
 361  *      g for group quotas (operational) turned on,
 362  *      1 for 32-bit local operational quotas,
 363  *      2 for 32-bit local operational quotas,
 364  *      3 for 64-bit local operational quotas,
 365  * Permanent parameters can be set with lctl/tunefs
 366  */
 367 int lprocfs_quota_wr_type(struct file *file, const char *buffer,
 368                           unsigned long count, void *data)
 369 {
 370         struct obd_device *obd = (struct obd_device *)data;
 371         struct obd_device_target *obt;
 372         int type = 0, is_mds, idx;
 373         unsigned long i;
 374         char stype[MAX_STYPE_SIZE + 1] = "";
 375         static const lustre_quota_version_t s2av[3] = {LUSTRE_QUOTA_V1,
 376                                                        LUSTRE_QUOTA_V2,
 377                                                        LUSTRE_QUOTA_V2},
 378                                             s2ov[3] = {LUSTRE_QUOTA_V1,
 379                                                        LUSTRE_QUOTA_V1,
 380                                                        LUSTRE_QUOTA_V2};
 381         LASSERT(obd != NULL);
 382
 383         obt = &obd->u.obt;
 384
 385         is_mds = !strcmp(obd->obd_type->typ_name, LUSTRE_MDS_NAME);
 386
 387         if (count > MAX_STYPE_SIZE)
 388                 return -EINVAL;
 389
 390         if (copy_from_user(stype, buffer, count))
 391                 return -EFAULT;
 392
 393         for (i = 0 ; i < count ; i++) {
 394                 int rc;
 395
 396                 switch (stype[i]) {
 397                 case 'u' :
 398                         type |= USER_QUOTA;
 399                         break;
 400                 case 'g' :
 401                         type |= GROUP_QUOTA;
 402                         break;
 403                 /* quota version specifiers */
 404                 case '1' :
 405                 case '2' :
 406                 case '3' :
 407                         idx = stype[i] - '1';
 408 #ifndef HAVE_QUOTA64
 409                         if (s2ov[idx] == LUSTRE_QUOTA_V2)
 410                                 return -EINVAL;
 411 #endif
 412                         if (is_mds) {
 413                                 rc = mds_quota_set_version(obd, s2av[idx],
 414                                                            s2ov[idx]);
 415                                 if (rc) {
 416                                         CDEBUG(D_QUOTA, "failed to set admin "
 417                                                "quota to spec %c! %d\n",
 418                                                stype[i], rc);
 419                                         return rc;
 420                                 }
 421                         } else {
 422                                 rc = filter_quota_set_version(obd, s2ov[idx]);
 423                                 if (rc) {
 424                                         CDEBUG(D_QUOTA, "failed to set op"
 425                                                " quota to spec %c! %d\n",
 426                                                stype[i], rc);
 427                                         return rc;
 428                                 }
 429                         }
 430                         break;
 431                 default  : /* just skip stray symbols like \n */
 432                         break;
 433                 }
 434         }
 435
 436         if (type != 0) {
 437                 int rc = auto_quota_on(obd, type - 1);
 438
 439                 if (rc == 0)
 440                         build_lqs(obd);
 441                 else if (rc == -ENOENT)
 442                         CWARN("%s: quotaon failed because quota files don't "
 443                               "exist, please run quotacheck firstly\n",
 444                               obd->obd_name);
 445                 else if (rc == -EALREADY)
 446                         CWARN("%s: quota is on already!\n", obd->obd_name);
 447                 else
 448                         return rc;
 449         }
 450
 451         return count;
 452 }
 453 EXPORT_SYMBOL(lprocfs_quota_wr_type);
 454
 455 int lprocfs_quota_rd_switch_seconds(char *page, char **start, off_t off,
 456                                     int count, int *eof, void *data)
 457 {
 458         struct obd_device *obd = (struct obd_device *)data;
 459         LASSERT(obd != NULL);
 460
 461         return snprintf(page, count, "%d\n",
 462                         obd->u.obt.obt_qctxt.lqc_switch_seconds);
 463 }
 464 EXPORT_SYMBOL(lprocfs_quota_rd_switch_seconds);
 465
 466 int lprocfs_quota_wr_switch_seconds(struct file *file, const char *buffer,
 467                                     unsigned long count, void *data)
 468 {
 469         struct obd_device *obd = (struct obd_device *)data;
 470         int val, rc;
 471         LASSERT(obd != NULL);
 472
 473         rc = lprocfs_write_helper(buffer, count, &val);
 474         if (rc)
 475                 return rc;
 476
 477         if (val <= 10)
 478                 return -EINVAL;
 479
 480         obd->u.obt.obt_qctxt.lqc_switch_seconds = val;
 481         return count;
 482 }
 483 EXPORT_SYMBOL(lprocfs_quota_wr_switch_seconds);
 484
 485 int lprocfs_quota_rd_sync_blk(char *page, char **start, off_t off,
 486                               int count, int *eof, void *data)
 487 {
 488         struct obd_device *obd = (struct obd_device *)data;
 489         LASSERT(obd != NULL);
 490
 491         return snprintf(page, count, "%d\n",
 492                         obd->u.obt.obt_qctxt.lqc_sync_blk);
 493 }
 494 EXPORT_SYMBOL(lprocfs_quota_rd_sync_blk);
 495
 496 int lprocfs_quota_wr_sync_blk(struct file *file, const char *buffer,
 497                               unsigned long count, void *data)
 498 {
 499         struct obd_device *obd = (struct obd_device *)data;
 500         int val, rc;
 501         LASSERT(obd != NULL);
 502
 503         rc = lprocfs_write_helper(buffer, count, &val);
 504         if (rc)
 505                 return rc;
 506
 507         if (val < 0)
 508                 return -EINVAL;
 509
 510         obd->u.obt.obt_qctxt.lqc_sync_blk = val;
 511         return count;
 512 }
 513 EXPORT_SYMBOL(lprocfs_quota_wr_sync_blk);
 514
 515 int lprocfs_quota_rd_switch_qs(char *page, char **start, off_t off,
 516                                int count, int *eof, void *data)
 517 {
 518         struct obd_device *obd = (struct obd_device *)data;
 519         LASSERT(obd != NULL);
 520
 521         return snprintf(page, count, "changing qunit size is %s\n",
 522                         obd->u.obt.obt_qctxt.lqc_switch_qs ?
 523                         "enabled" : "disabled");
 524 }
 525 EXPORT_SYMBOL(lprocfs_quota_rd_switch_qs);
 526
 527 int lprocfs_quota_wr_switch_qs(struct file *file, const char *buffer,
 528                                unsigned long count, void *data)
 529 {
 530         struct obd_device *obd = (struct obd_device *)data;
 531         int val, rc;
 532         LASSERT(obd != NULL);
 533
 534         rc = lprocfs_write_helper(buffer, count, &val);
 535         if (rc)
 536                 return rc;
 537
 538         if (val)
 539             obd->u.obt.obt_qctxt.lqc_switch_qs = 1;
 540         else
 541             obd->u.obt.obt_qctxt.lqc_switch_qs = 0;
 542
 543         return count;
 544 }
 545 EXPORT_SYMBOL(lprocfs_quota_wr_switch_qs);
 546
 547 int lprocfs_quota_rd_boundary_factor(char *page, char **start, off_t off,
 548                                      int count, int *eof, void *data)
 549 {
 550         struct obd_device *obd = (struct obd_device *)data;
 551         LASSERT(obd != NULL);
 552
 553
 554         return snprintf(page, count, "%lu\n",
 555                         obd->u.obt.obt_qctxt.lqc_cqs_boundary_factor);
 556 }
 557 EXPORT_SYMBOL(lprocfs_quota_rd_boundary_factor);
 558
 559 int lprocfs_quota_wr_boundary_factor(struct file *file, const char *buffer,
 560                                      unsigned long count, void *data)
 561 {
 562         struct obd_device *obd = (struct obd_device *)data;
 563         int val, rc;
 564         LASSERT(obd != NULL);
 565
 566         rc = lprocfs_write_helper(buffer, count, &val);
 567         if (rc)
 568                 return rc;
 569
 570         if (val < 2)
 571                 return -EINVAL;
 572
 573         obd->u.obt.obt_qctxt.lqc_cqs_boundary_factor = val;
 574         return count;
 575 }
 576 EXPORT_SYMBOL(lprocfs_quota_wr_boundary_factor);
 577
 578 int lprocfs_quota_rd_least_bunit(char *page, char **start, off_t off,
 579                                  int count, int *eof, void *data)
 580 {
 581         struct obd_device *obd = (struct obd_device *)data;
 582         LASSERT(obd != NULL);
 583
 584
 585         return snprintf(page, count, "%lu\n",
 586                         obd->u.obt.obt_qctxt.lqc_cqs_least_bunit);
 587 }
 588 EXPORT_SYMBOL(lprocfs_quota_rd_least_bunit);
 589
 590 int lprocfs_quota_wr_least_bunit(struct file *file, const char *buffer,
 591                                  unsigned long count, void *data)
 592 {
 593         struct obd_device *obd = (struct obd_device *)data;
 594         int val, rc;
 595         LASSERT(obd != NULL);
 596
 597         rc = lprocfs_write_helper(buffer, count, &val);
 598         if (rc)
 599                 return rc;
 600
 601         if (val < PTLRPC_MAX_BRW_SIZE ||
 602             val >= obd->u.obt.obt_qctxt.lqc_bunit_sz)
 603                 return -EINVAL;
 604
 605         obd->u.obt.obt_qctxt.lqc_cqs_least_bunit = val;
 606         return count;
 607 }
 608 EXPORT_SYMBOL(lprocfs_quota_wr_least_bunit);
 609
 610 int lprocfs_quota_rd_least_iunit(char *page, char **start, off_t off,
 611                                  int count, int *eof, void *data)
 612 {
 613         struct obd_device *obd = (struct obd_device *)data;
 614         LASSERT(obd != NULL);
 615
 616
 617         return snprintf(page, count, "%lu\n",
 618                         obd->u.obt.obt_qctxt.lqc_cqs_least_iunit);
 619 }
 620 EXPORT_SYMBOL(lprocfs_quota_rd_least_iunit);
 621
 622 int lprocfs_quota_wr_least_iunit(struct file *file, const char *buffer,
 623                                  unsigned long count, void *data)
 624 {
 625         struct obd_device *obd = (struct obd_device *)data;
 626         int val, rc;
 627         LASSERT(obd != NULL);
 628
 629         rc = lprocfs_write_helper(buffer, count, &val);
 630         if (rc)
 631                 return rc;
 632
 633         if (val < 1 || val >= obd->u.obt.obt_qctxt.lqc_iunit_sz)
 634                 return -EINVAL;
 635
 636         obd->u.obt.obt_qctxt.lqc_cqs_least_iunit = val;
 637         return count;
 638 }
 639 EXPORT_SYMBOL(lprocfs_quota_wr_least_iunit);
 640
 641 int lprocfs_quota_rd_qs_factor(char *page, char **start, off_t off,
 642                                int count, int *eof, void *data)
 643 {
 644         struct obd_device *obd = (struct obd_device *)data;
 645         LASSERT(obd != NULL);
 646
 647
 648         return snprintf(page, count, "%lu\n",
 649                         obd->u.obt.obt_qctxt.lqc_cqs_qs_factor);
 650 }
 651 EXPORT_SYMBOL(lprocfs_quota_rd_qs_factor);
 652
 653 int lprocfs_quota_wr_qs_factor(struct file *file, const char *buffer,
 654                                unsigned long count, void *data)
 655 {
 656         struct obd_device *obd = (struct obd_device *)data;
 657         int val, rc;
 658         LASSERT(obd != NULL);
 659
 660         rc = lprocfs_write_helper(buffer, count, &val);
 661         if (rc)
 662                 return rc;
 663
 664         if (val < 2)
 665                 return -EINVAL;
 666
 667         obd->u.obt.obt_qctxt.lqc_cqs_qs_factor = val;
 668         return count;
 669 }
 670 EXPORT_SYMBOL(lprocfs_quota_wr_qs_factor);
 671
 672 struct lprocfs_vars lprocfs_quota_common_vars[] = {
 673         { "quota_bunit_sz", lprocfs_quota_rd_bunit,
 674                             lprocfs_quota_wr_bunit, 0},
 675         { "quota_btune_sz", lprocfs_quota_rd_btune,
 676                             lprocfs_quota_wr_btune, 0},
 677         { "quota_iunit_sz", lprocfs_quota_rd_iunit,
 678                             lprocfs_quota_wr_iunit, 0},
 679         { "quota_itune_sz", lprocfs_quota_rd_itune,
 680                             lprocfs_quota_wr_itune, 0},
 681         { "quota_type",     lprocfs_quota_rd_type,
 682                             lprocfs_quota_wr_type, 0},
 683         { "quota_switch_seconds",  lprocfs_quota_rd_switch_seconds,
 684                                    lprocfs_quota_wr_switch_seconds, 0 },
 685         { "quota_sync_blk", lprocfs_quota_rd_sync_blk,
 686                             lprocfs_quota_wr_sync_blk, 0},
 687         { NULL }
 688 };
 689
 690 struct lprocfs_vars lprocfs_quota_master_vars[] = {
 691         { "quota_switch_qs", lprocfs_quota_rd_switch_qs,
 692                              lprocfs_quota_wr_switch_qs, 0 },
 693         { "quota_boundary_factor", lprocfs_quota_rd_boundary_factor,
 694                                    lprocfs_quota_wr_boundary_factor, 0 },
 695         { "quota_least_bunit", lprocfs_quota_rd_least_bunit,
 696                                lprocfs_quota_wr_least_bunit, 0 },
 697         { "quota_least_iunit", lprocfs_quota_rd_least_iunit,
 698                                lprocfs_quota_wr_least_iunit, 0 },
 699         { "quota_qs_factor",   lprocfs_quota_rd_qs_factor,
 700                                lprocfs_quota_wr_qs_factor, 0 },
 701         { NULL }
 702 };
 703
 704 int lquota_proc_setup(struct obd_device *obd, int is_master)
 705 {
 706         struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
 707         int rc = 0;
 708         ENTRY;
 709
 710         LASSERT(lquota_type_proc_dir && obd);
 711         qctxt->lqc_proc_dir = lprocfs_register(obd->obd_name,
 712                                                lquota_type_proc_dir,
 713                                                lprocfs_quota_common_vars, obd);
 714         if (IS_ERR(qctxt->lqc_proc_dir)) {
 715                 rc = PTR_ERR(qctxt->lqc_proc_dir);
 716                 CERROR("%s: error %d setting up lprocfs\n",
 717                        obd->obd_name, rc);
 718                 qctxt->lqc_proc_dir = NULL;
 719                 GOTO(out, rc);
 720         }
 721
 722         if (is_master) {
 723                 rc = lprocfs_add_vars(qctxt->lqc_proc_dir,
 724                                       lprocfs_quota_master_vars, obd);
 725                 if (rc) {
 726                         CERROR("%s: error %d setting up lprocfs for "
 727                                "quota master\n", obd->obd_name, rc);
 728                         GOTO(out_free_proc, rc);
 729                 }
 730         }
 731
 732         qctxt->lqc_stats = lprocfs_alloc_stats(LQUOTA_LAST_STAT -
 733                                                LQUOTA_FIRST_STAT, 0);
 734         if (!qctxt->lqc_stats)
 735                 GOTO(out_free_proc, rc = -ENOMEM);
 736
 737         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_SYNC_ACQ,
 738                              LPROCFS_CNTR_AVGMINMAX, "sync_acq_req", "us");
 739         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_SYNC_REL,
 740                              LPROCFS_CNTR_AVGMINMAX, "sync_rel_req", "us");
 741         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ASYNC_ACQ,
 742                              LPROCFS_CNTR_AVGMINMAX, "async_acq_req", "us");
 743         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ASYNC_REL,
 744                              LPROCFS_CNTR_AVGMINMAX, "async_rel_req", "us");
 745
 746         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_CHK_BLK,
 747                              LPROCFS_CNTR_AVGMINMAX,
 748                              "wait_for_blk_quota(lquota_chkquota)", "us");
 749         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_CHK_INO,
 750                              LPROCFS_CNTR_AVGMINMAX,
 751                              "wait_for_ino_quota(lquota_chkquota)", "us");
 752         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_COMMIT_BLK,
 753                              LPROCFS_CNTR_AVGMINMAX,
 754                              "wait_for_blk_quota(lquota_pending_commit)",
 755                              "us");
 756         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_COMMIT_INO,
 757                              LPROCFS_CNTR_AVGMINMAX,
 758                              "wait_for_ino_quota(lquota_pending_commit)",
 759                              "us");
 760
 761         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_PENDING_BLK_QUOTA,
 762                              LPROCFS_CNTR_AVGMINMAX,
 763                              "wait_for_pending_blk_quota_req"
 764                              "(qctxt_wait_pending_dqacq)", "us");
 765         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_PENDING_INO_QUOTA,
 766                              LPROCFS_CNTR_AVGMINMAX,
 767                              "wait_for_pending_ino_quota_req"
 768                              "(qctxt_wait_pending_dqacq)", "us");
 769         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_NOWAIT_PENDING_BLK_QUOTA,
 770                              LPROCFS_CNTR_AVGMINMAX,
 771                              "nowait_for_pending_blk_quota_req"
 772                              "(qctxt_wait_pending_dqacq)", "us");
 773         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_NOWAIT_PENDING_INO_QUOTA,
 774                              LPROCFS_CNTR_AVGMINMAX,
 775                              "nowait_for_pending_ino_quota_req"
 776                              "(qctxt_wait_pending_dqacq)", "us");
 777
 778         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_QUOTA_CTL,
 779                              LPROCFS_CNTR_AVGMINMAX, "quota_ctl", "us");
 780         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ADJUST_QUNIT,
 781                              LPROCFS_CNTR_AVGMINMAX, "adjust_qunit", "us");
 782
 783         lprocfs_register_stats(qctxt->lqc_proc_dir, "stats", qctxt->lqc_stats);
 784
 785         RETURN(rc);
 786
 787 out_free_proc:
 788         lprocfs_remove(&qctxt->lqc_proc_dir);
 789 out:
 790         RETURN(rc);
 791 }
 792
 793 int lquota_proc_cleanup(struct lustre_quota_ctxt *qctxt)
 794 {
 795         if (!qctxt || !qctxt->lqc_proc_dir)
 796                 return -EINVAL;
 797
 798         if (qctxt->lqc_stats != NULL)
 799                 lprocfs_free_stats(&qctxt->lqc_stats);
 800
 801         lprocfs_remove(&qctxt->lqc_proc_dir);
 802         return 0;
 803 }
 804
 805 #endif  /* LPROCFS */
 806 #endif