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) {
 264                 down(&obd->u.mds.mds_qonoff_sem);
 265                 if (local) {
 266                         push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 267                         /* turn on cluster wide quota */
 268                         rc = mds_admin_quota_on(obd, oqctl);
 269                         pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 270                         if (rc && rc != -ENOENT)
 271                                 CERROR("%s: %s admin quotaon failed. rc=%d\n",
 272                                        obd->obd_name, global? "global":"local",
 273                                        rc);
 274                 }
 275         }
 276
 277         if (rc == 0) {
 278                 if (local) {
 279                         push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 280                         /* turn on local quota */
 281                         rc = fsfilt_quotactl(obd, obt->obt_sb, oqctl);
 282                         if (rc) {
 283                                 if (rc != -ENOENT)
 284                                         CERROR("%s: %s quotaon failed with"
 285                                                " rc=%d\n", obd->obd_name,
 286                                                global ? "global" : "local", rc);
 287                         } else {
 288                                 obt->obt_qctxt.lqc_flags |= UGQUOTA2LQC(oqctl->qc_type);
 289                                 /* when quotaon, create lqs for every
 290                                  * quota uid/gid b=18574 */
 291                                 build_lqs(obd);
 292                         }
 293                         pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 294                 }
 295
 296                 if (rc == 0 && global && is_master)
 297                         rc = obd_quotactl(obd->u.mds.mds_lov_exp, oqctl);
 298         }
 299
 300         if (is_master)
 301                 up(&obd->u.mds.mds_qonoff_sem);
 302
 303         atomic_inc(&obt->obt_quotachecking);
 304
 305         return rc;
 306 }
 307
 308 static int auto_quota_on(struct obd_device *obd, int type)
 309 {
 310         struct obd_quotactl *oqctl;
 311         int rc;
 312         ENTRY;
 313
 314         LASSERT(type == USRQUOTA || type == GRPQUOTA || type == UGQUOTA);
 315
 316         OBD_ALLOC_PTR(oqctl);
 317         if (!oqctl)
 318                 RETURN(-ENOMEM);
 319
 320         oqctl->qc_type = type;
 321
 322         rc = generic_quota_on(obd, oqctl, 0);
 323
 324         OBD_FREE_PTR(oqctl);
 325         RETURN(rc);
 326 }
 327
 328 static int filter_quota_set_version(struct obd_device *obd,
 329                                     lustre_quota_version_t version)
 330 {
 331         struct obd_device_target *obt = &obd->u.obt;
 332
 333         if (version != LUSTRE_QUOTA_V1) {
 334 #ifdef HAVE_QUOTA64
 335                 if (version != LUSTRE_QUOTA_V2)
 336 #endif
 337                         return -EINVAL;
 338         }
 339
 340         if (!atomic_dec_and_test(&obt->obt_quotachecking)) {
 341                 CDEBUG(D_INFO, "other people are doing quotacheck\n");
 342                 atomic_inc(&obt->obt_quotachecking);
 343                 return -EBUSY;
 344         }
 345
 346         /* do not complain of being busy if we actually have nothing to do */
 347         if (obt->obt_qfmt != version) {
 348                 if (obt->obt_qctxt.lqc_flags&(LQC_USRQUOTA_FLAG|LQC_GRPQUOTA_FLAG)){
 349                         atomic_inc(&obt->obt_quotachecking);
 350                         return -EBUSY;
 351                 }
 352                 obt->obt_qfmt = version;
 353         }
 354
 355         atomic_inc(&obt->obt_quotachecking);
 356
 357         return 0;
 358 }
 359
 360 /* The following settings of CURRENT quotas is expected on the input:
 361  * MDS: u for user quotas (administrative+operational) turned on,
 362  *      g for group quotas (administrative+operational) turned on,
 363  *      1 for 32-bit operational quotas and 32-bit administrative quotas,
 364  *      2 for 32-bit operational quotas and 64-bit administrative quotas,
 365  *      3 for 64-bit operational quotas and 64-bit administrative quotas
 366  * OST: u for user quotas (operational) turned on,
 367  *      g for group quotas (operational) turned on,
 368  *      1 for 32-bit local operational quotas,
 369  *      2 for 32-bit local operational quotas,
 370  *      3 for 64-bit local operational quotas,
 371  * Permanent parameters can be set with lctl/tunefs
 372  */
 373 int lprocfs_quota_wr_type(struct file *file, const char *buffer,
 374                           unsigned long count, void *data)
 375 {
 376         struct obd_device *obd = (struct obd_device *)data;
 377         struct obd_device_target *obt;
 378         int type = 0, is_mds, idx;
 379         unsigned long i;
 380         char stype[MAX_STYPE_SIZE + 1] = "";
 381         static const lustre_quota_version_t s2av[3] = {LUSTRE_QUOTA_V1,
 382                                                        LUSTRE_QUOTA_V2,
 383                                                        LUSTRE_QUOTA_V2},
 384                                             s2ov[3] = {LUSTRE_QUOTA_V1,
 385                                                        LUSTRE_QUOTA_V1,
 386                                                        LUSTRE_QUOTA_V2};
 387         LASSERT(obd != NULL);
 388
 389         obt = &obd->u.obt;
 390
 391         is_mds = !strcmp(obd->obd_type->typ_name, LUSTRE_MDS_NAME);
 392
 393         if (count > MAX_STYPE_SIZE)
 394                 return -EINVAL;
 395
 396         if (copy_from_user(stype, buffer, count))
 397                 return -EFAULT;
 398
 399         for (i = 0 ; i < count ; i++) {
 400                 int rc;
 401
 402                 switch (stype[i]) {
 403                 case 'u' :
 404                         type |= USER_QUOTA;
 405                         break;
 406                 case 'g' :
 407                         type |= GROUP_QUOTA;
 408                         break;
 409                 /* quota version specifiers */
 410                 case '1' :
 411                 case '2' :
 412                 case '3' :
 413                         idx = stype[i] - '1';
 414 #ifndef HAVE_QUOTA64
 415                         if (s2ov[idx] == LUSTRE_QUOTA_V2)
 416                                 return -EINVAL;
 417 #endif
 418                         if (is_mds) {
 419                                 rc = mds_quota_set_version(obd, s2av[idx],
 420                                                            s2ov[idx]);
 421                                 if (rc) {
 422                                         CDEBUG(D_QUOTA, "failed to set admin "
 423                                                "quota to spec %c! %d\n",
 424                                                stype[i], rc);
 425                                         return rc;
 426                                 }
 427                         } else {
 428                                 rc = filter_quota_set_version(obd, s2ov[idx]);
 429                                 if (rc) {
 430                                         CDEBUG(D_QUOTA, "failed to set op"
 431                                                " quota to spec %c! %d\n",
 432                                                stype[i], rc);
 433                                         return rc;
 434                                 }
 435                         }
 436                         break;
 437                 default  : /* just skip stray symbols like \n */
 438                         break;
 439                 }
 440         }
 441
 442         if (type != 0) {
 443                 int rc = auto_quota_on(obd, type - 1);
 444
 445                 if (rc == -ENOENT)
 446                         CWARN("%s: quotaon failed because quota files don't "
 447                               "exist, please run quotacheck firstly\n",
 448                               obd->obd_name);
 449                 else if (rc == -EALREADY)
 450                         CWARN("%s: quota is on already!\n", obd->obd_name);
 451                 else if (rc != 0)
 452                         return rc;
 453         }
 454
 455         return count;
 456 }
 457 EXPORT_SYMBOL(lprocfs_quota_wr_type);
 458
 459 int lprocfs_quota_rd_switch_seconds(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         return snprintf(page, count, "%d\n",
 466                         obd->u.obt.obt_qctxt.lqc_switch_seconds);
 467 }
 468 EXPORT_SYMBOL(lprocfs_quota_rd_switch_seconds);
 469
 470 int lprocfs_quota_wr_switch_seconds(struct file *file, const char *buffer,
 471                                     unsigned long count, void *data)
 472 {
 473         struct obd_device *obd = (struct obd_device *)data;
 474         int val, rc;
 475         LASSERT(obd != NULL);
 476
 477         rc = lprocfs_write_helper(buffer, count, &val);
 478         if (rc)
 479                 return rc;
 480
 481         if (val <= 10)
 482                 return -EINVAL;
 483
 484         obd->u.obt.obt_qctxt.lqc_switch_seconds = val;
 485         return count;
 486 }
 487 EXPORT_SYMBOL(lprocfs_quota_wr_switch_seconds);
 488
 489 int lprocfs_quota_rd_sync_blk(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         return snprintf(page, count, "%d\n",
 496                         obd->u.obt.obt_qctxt.lqc_sync_blk);
 497 }
 498 EXPORT_SYMBOL(lprocfs_quota_rd_sync_blk);
 499
 500 int lprocfs_quota_wr_sync_blk(struct file *file, const char *buffer,
 501                               unsigned long count, void *data)
 502 {
 503         struct obd_device *obd = (struct obd_device *)data;
 504         int val, rc;
 505         LASSERT(obd != NULL);
 506
 507         rc = lprocfs_write_helper(buffer, count, &val);
 508         if (rc)
 509                 return rc;
 510
 511         if (val < 0)
 512                 return -EINVAL;
 513
 514         obd->u.obt.obt_qctxt.lqc_sync_blk = val;
 515         return count;
 516 }
 517 EXPORT_SYMBOL(lprocfs_quota_wr_sync_blk);
 518
 519 int lprocfs_quota_rd_switch_qs(char *page, char **start, off_t off,
 520                                int count, int *eof, void *data)
 521 {
 522         struct obd_device *obd = (struct obd_device *)data;
 523         LASSERT(obd != NULL);
 524
 525         return snprintf(page, count, "changing qunit size is %s\n",
 526                         obd->u.obt.obt_qctxt.lqc_switch_qs ?
 527                         "enabled" : "disabled");
 528 }
 529 EXPORT_SYMBOL(lprocfs_quota_rd_switch_qs);
 530
 531 int lprocfs_quota_wr_switch_qs(struct file *file, const char *buffer,
 532                                unsigned long count, void *data)
 533 {
 534         struct obd_device *obd = (struct obd_device *)data;
 535         int val, rc;
 536         LASSERT(obd != NULL);
 537
 538         rc = lprocfs_write_helper(buffer, count, &val);
 539         if (rc)
 540                 return rc;
 541
 542         if (val)
 543             obd->u.obt.obt_qctxt.lqc_switch_qs = 1;
 544         else
 545             obd->u.obt.obt_qctxt.lqc_switch_qs = 0;
 546
 547         return count;
 548 }
 549 EXPORT_SYMBOL(lprocfs_quota_wr_switch_qs);
 550
 551 int lprocfs_quota_rd_boundary_factor(char *page, char **start, off_t off,
 552                                      int count, int *eof, void *data)
 553 {
 554         struct obd_device *obd = (struct obd_device *)data;
 555         LASSERT(obd != NULL);
 556
 557
 558         return snprintf(page, count, "%lu\n",
 559                         obd->u.obt.obt_qctxt.lqc_cqs_boundary_factor);
 560 }
 561 EXPORT_SYMBOL(lprocfs_quota_rd_boundary_factor);
 562
 563 int lprocfs_quota_wr_boundary_factor(struct file *file, const char *buffer,
 564                                      unsigned long count, void *data)
 565 {
 566         struct obd_device *obd = (struct obd_device *)data;
 567         int val, rc;
 568         LASSERT(obd != NULL);
 569
 570         rc = lprocfs_write_helper(buffer, count, &val);
 571         if (rc)
 572                 return rc;
 573
 574         if (val < 2)
 575                 return -EINVAL;
 576
 577         obd->u.obt.obt_qctxt.lqc_cqs_boundary_factor = val;
 578         return count;
 579 }
 580 EXPORT_SYMBOL(lprocfs_quota_wr_boundary_factor);
 581
 582 int lprocfs_quota_rd_least_bunit(char *page, char **start, off_t off,
 583                                  int count, int *eof, void *data)
 584 {
 585         struct obd_device *obd = (struct obd_device *)data;
 586         LASSERT(obd != NULL);
 587
 588
 589         return snprintf(page, count, "%lu\n",
 590                         obd->u.obt.obt_qctxt.lqc_cqs_least_bunit);
 591 }
 592 EXPORT_SYMBOL(lprocfs_quota_rd_least_bunit);
 593
 594 int lprocfs_quota_wr_least_bunit(struct file *file, const char *buffer,
 595                                  unsigned long count, void *data)
 596 {
 597         struct obd_device *obd = (struct obd_device *)data;
 598         int val, rc;
 599         LASSERT(obd != NULL);
 600
 601         rc = lprocfs_write_helper(buffer, count, &val);
 602         if (rc)
 603                 return rc;
 604
 605         if (val < PTLRPC_MAX_BRW_SIZE ||
 606             val >= obd->u.obt.obt_qctxt.lqc_bunit_sz)
 607                 return -EINVAL;
 608
 609         obd->u.obt.obt_qctxt.lqc_cqs_least_bunit = val;
 610         return count;
 611 }
 612 EXPORT_SYMBOL(lprocfs_quota_wr_least_bunit);
 613
 614 int lprocfs_quota_rd_least_iunit(char *page, char **start, off_t off,
 615                                  int count, int *eof, void *data)
 616 {
 617         struct obd_device *obd = (struct obd_device *)data;
 618         LASSERT(obd != NULL);
 619
 620
 621         return snprintf(page, count, "%lu\n",
 622                         obd->u.obt.obt_qctxt.lqc_cqs_least_iunit);
 623 }
 624 EXPORT_SYMBOL(lprocfs_quota_rd_least_iunit);
 625
 626 int lprocfs_quota_wr_least_iunit(struct file *file, const char *buffer,
 627                                  unsigned long count, void *data)
 628 {
 629         struct obd_device *obd = (struct obd_device *)data;
 630         int val, rc;
 631         LASSERT(obd != NULL);
 632
 633         rc = lprocfs_write_helper(buffer, count, &val);
 634         if (rc)
 635                 return rc;
 636
 637         if (val < 1 || val >= obd->u.obt.obt_qctxt.lqc_iunit_sz)
 638                 return -EINVAL;
 639
 640         obd->u.obt.obt_qctxt.lqc_cqs_least_iunit = val;
 641         return count;
 642 }
 643 EXPORT_SYMBOL(lprocfs_quota_wr_least_iunit);
 644
 645 int lprocfs_quota_rd_qs_factor(char *page, char **start, off_t off,
 646                                int count, int *eof, void *data)
 647 {
 648         struct obd_device *obd = (struct obd_device *)data;
 649         LASSERT(obd != NULL);
 650
 651
 652         return snprintf(page, count, "%lu\n",
 653                         obd->u.obt.obt_qctxt.lqc_cqs_qs_factor);
 654 }
 655 EXPORT_SYMBOL(lprocfs_quota_rd_qs_factor);
 656
 657 int lprocfs_quota_wr_qs_factor(struct file *file, const char *buffer,
 658                                unsigned long count, void *data)
 659 {
 660         struct obd_device *obd = (struct obd_device *)data;
 661         int val, rc;
 662         LASSERT(obd != NULL);
 663
 664         rc = lprocfs_write_helper(buffer, count, &val);
 665         if (rc)
 666                 return rc;
 667
 668         if (val < 2)
 669                 return -EINVAL;
 670
 671         obd->u.obt.obt_qctxt.lqc_cqs_qs_factor = val;
 672         return count;
 673 }
 674 EXPORT_SYMBOL(lprocfs_quota_wr_qs_factor);
 675
 676 struct lprocfs_vars lprocfs_quota_common_vars[] = {
 677         { "quota_bunit_sz", lprocfs_quota_rd_bunit,
 678                             lprocfs_quota_wr_bunit, 0},
 679         { "quota_btune_sz", lprocfs_quota_rd_btune,
 680                             lprocfs_quota_wr_btune, 0},
 681         { "quota_iunit_sz", lprocfs_quota_rd_iunit,
 682                             lprocfs_quota_wr_iunit, 0},
 683         { "quota_itune_sz", lprocfs_quota_rd_itune,
 684                             lprocfs_quota_wr_itune, 0},
 685         { "quota_type",     lprocfs_quota_rd_type,
 686                             lprocfs_quota_wr_type, 0},
 687         { "quota_switch_seconds",  lprocfs_quota_rd_switch_seconds,
 688                                    lprocfs_quota_wr_switch_seconds, 0 },
 689         { "quota_sync_blk", lprocfs_quota_rd_sync_blk,
 690                             lprocfs_quota_wr_sync_blk, 0},
 691         { NULL }
 692 };
 693
 694 struct lprocfs_vars lprocfs_quota_master_vars[] = {
 695         { "quota_switch_qs", lprocfs_quota_rd_switch_qs,
 696                              lprocfs_quota_wr_switch_qs, 0 },
 697         { "quota_boundary_factor", lprocfs_quota_rd_boundary_factor,
 698                                    lprocfs_quota_wr_boundary_factor, 0 },
 699         { "quota_least_bunit", lprocfs_quota_rd_least_bunit,
 700                                lprocfs_quota_wr_least_bunit, 0 },
 701         { "quota_least_iunit", lprocfs_quota_rd_least_iunit,
 702                                lprocfs_quota_wr_least_iunit, 0 },
 703         { "quota_qs_factor",   lprocfs_quota_rd_qs_factor,
 704                                lprocfs_quota_wr_qs_factor, 0 },
 705         { NULL }
 706 };
 707
 708 int lquota_proc_setup(struct obd_device *obd, int is_master)
 709 {
 710         struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
 711         int rc = 0;
 712         ENTRY;
 713
 714         LASSERT(lquota_type_proc_dir && obd);
 715         qctxt->lqc_proc_dir = lprocfs_register(obd->obd_name,
 716                                                lquota_type_proc_dir,
 717                                                lprocfs_quota_common_vars, obd);
 718         if (IS_ERR(qctxt->lqc_proc_dir)) {
 719                 rc = PTR_ERR(qctxt->lqc_proc_dir);
 720                 CERROR("%s: error %d setting up lprocfs\n",
 721                        obd->obd_name, rc);
 722                 qctxt->lqc_proc_dir = NULL;
 723                 GOTO(out, rc);
 724         }
 725
 726         if (is_master) {
 727                 rc = lprocfs_add_vars(qctxt->lqc_proc_dir,
 728                                       lprocfs_quota_master_vars, obd);
 729                 if (rc) {
 730                         CERROR("%s: error %d setting up lprocfs for "
 731                                "quota master\n", obd->obd_name, rc);
 732                         GOTO(out_free_proc, rc);
 733                 }
 734         }
 735
 736         qctxt->lqc_stats = lprocfs_alloc_stats(LQUOTA_LAST_STAT -
 737                                                LQUOTA_FIRST_STAT, 0);
 738         if (!qctxt->lqc_stats)
 739                 GOTO(out_free_proc, rc = -ENOMEM);
 740
 741         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_SYNC_ACQ,
 742                              LPROCFS_CNTR_AVGMINMAX, "sync_acq_req", "us");
 743         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_SYNC_REL,
 744                              LPROCFS_CNTR_AVGMINMAX, "sync_rel_req", "us");
 745         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ASYNC_ACQ,
 746                              LPROCFS_CNTR_AVGMINMAX, "async_acq_req", "us");
 747         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ASYNC_REL,
 748                              LPROCFS_CNTR_AVGMINMAX, "async_rel_req", "us");
 749
 750         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_CHK_BLK,
 751                              LPROCFS_CNTR_AVGMINMAX,
 752                              "wait_for_blk_quota(lquota_chkquota)", "us");
 753         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_CHK_INO,
 754                              LPROCFS_CNTR_AVGMINMAX,
 755                              "wait_for_ino_quota(lquota_chkquota)", "us");
 756         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_COMMIT_BLK,
 757                              LPROCFS_CNTR_AVGMINMAX,
 758                              "wait_for_blk_quota(lquota_pending_commit)",
 759                              "us");
 760         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_COMMIT_INO,
 761                              LPROCFS_CNTR_AVGMINMAX,
 762                              "wait_for_ino_quota(lquota_pending_commit)",
 763                              "us");
 764
 765         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_PENDING_BLK_QUOTA,
 766                              LPROCFS_CNTR_AVGMINMAX,
 767                              "wait_for_pending_blk_quota_req"
 768                              "(qctxt_wait_pending_dqacq)", "us");
 769         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_PENDING_INO_QUOTA,
 770                              LPROCFS_CNTR_AVGMINMAX,
 771                              "wait_for_pending_ino_quota_req"
 772                              "(qctxt_wait_pending_dqacq)", "us");
 773         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_NOWAIT_PENDING_BLK_QUOTA,
 774                              LPROCFS_CNTR_AVGMINMAX,
 775                              "nowait_for_pending_blk_quota_req"
 776                              "(qctxt_wait_pending_dqacq)", "us");
 777         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_NOWAIT_PENDING_INO_QUOTA,
 778                              LPROCFS_CNTR_AVGMINMAX,
 779                              "nowait_for_pending_ino_quota_req"
 780                              "(qctxt_wait_pending_dqacq)", "us");
 781
 782         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_QUOTA_CTL,
 783                              LPROCFS_CNTR_AVGMINMAX, "quota_ctl", "us");
 784         lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ADJUST_QUNIT,
 785                              LPROCFS_CNTR_AVGMINMAX, "adjust_qunit", "us");
 786
 787         lprocfs_register_stats(qctxt->lqc_proc_dir, "stats", qctxt->lqc_stats);
 788
 789         RETURN(rc);
 790
 791 out_free_proc:
 792         lprocfs_remove(&qctxt->lqc_proc_dir);
 793 out:
 794         RETURN(rc);
 795 }
 796
 797 int lquota_proc_cleanup(struct lustre_quota_ctxt *qctxt)
 798 {
 799         if (!qctxt || !qctxt->lqc_proc_dir)
 800                 return -EINVAL;
 801
 802         if (qctxt->lqc_stats != NULL)
 803                 lprocfs_free_stats(&qctxt->lqc_stats);
 804
 805         lprocfs_remove(&qctxt->lqc_proc_dir);
 806         return 0;
 807 }
 808
 809 #endif  /* LPROCFS */
 810 #endif