lustre/quota/quota_interface.c

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
   4  *  lustre/quota/quota_interface.c
   5  *
   6  *  Copyright (c) 2001-2005 Cluster File Systems, Inc.
   7  *
   8  *   This file is part of Lustre, http://www.lustre.org.
   9  *
  10  *   No redistribution or use is permitted outside of Cluster File Systems, Inc.
  11  *
  12  */
  13 #ifndef EXPORT_SYMTAB
  14 # define EXPORT_SYMTAB
  15 #endif
  16 #define DEBUG_SUBSYSTEM S_MDS
  17
  18 #ifdef __KERNEL__
  19 # include <linux/version.h>
  20 # include <linux/module.h>
  21 # include <linux/init.h>
  22 # include <linux/fs.h>
  23 # include <linux/jbd.h>
  24 # include <linux/ext3_fs.h>
  25 # if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
  26 #  include <linux/smp_lock.h>
  27 #  include <linux/buffer_head.h>
  28 #  include <linux/workqueue.h>
  29 #  include <linux/mount.h>
  30 # else
  31 #  include <linux/locks.h>
  32 # endif
  33 #else /* __KERNEL__ */
  34 # include <liblustre.h>
  35 #endif
  36
  37 #include <obd_class.h>
  38 #include <lustre_mds.h>
  39 #include <lustre_dlm.h>
  40 #include <lustre_cfg.h>
  41 #include <obd_ost.h>
  42 #include <lustre_fsfilt.h>
  43 #include <lustre_quota.h>
  44 #include <lprocfs_status.h>
  45 #include "quota_internal.h"
  46
  47
  48 #ifdef __KERNEL__
  49
  50 /* quota proc file handling functions */
  51 #ifdef LPROCFS
  52 int lprocfs_rd_bunit(char *page, char **start, off_t off, int count,
  53                      int *eof, void *data)
  54 {
  55         struct obd_device *obd = (struct obd_device *)data;
  56         LASSERT(obd != NULL);
  57
  58         return snprintf(page, count, "%lu\n",
  59                         obd->u.obt.obt_qctxt.lqc_bunit_sz);
  60 }
  61 EXPORT_SYMBOL(lprocfs_rd_bunit);
  62
  63 int lprocfs_rd_iunit(char *page, char **start, off_t off, int count,
  64                      int *eof, void *data)
  65 {
  66         struct obd_device *obd = (struct obd_device *)data;
  67         LASSERT(obd != NULL);
  68
  69         return snprintf(page, count, "%lu\n",
  70                         obd->u.obt.obt_qctxt.lqc_iunit_sz);
  71 }
  72 EXPORT_SYMBOL(lprocfs_rd_iunit);
  73
  74 int lprocfs_wr_bunit(struct file *file, const char *buffer,
  75                      unsigned long count, void *data)
  76 {
  77         struct obd_device *obd = (struct obd_device *)data;
  78         int val, rc;
  79         LASSERT(obd != NULL);
  80
  81         rc = lprocfs_write_helper(buffer, count, &val);
  82         if (rc)
  83                 return rc;
  84
  85         if (val % QUOTABLOCK_SIZE ||
  86             val <= obd->u.obt.obt_qctxt.lqc_btune_sz)
  87                 return -EINVAL;
  88
  89         obd->u.obt.obt_qctxt.lqc_bunit_sz = val;
  90         return count;
  91 }
  92 EXPORT_SYMBOL(lprocfs_wr_bunit);
  93
  94 int lprocfs_wr_iunit(struct file *file, const char *buffer,
  95                      unsigned long count, void *data)
  96 {
  97         struct obd_device *obd = (struct obd_device *)data;
  98         int val, rc;
  99         LASSERT(obd != NULL);
 100
 101         rc = lprocfs_write_helper(buffer, count, &val);
 102         if (rc)
 103                 return rc;
 104
 105         if (val <= obd->u.obt.obt_qctxt.lqc_itune_sz)
 106                 return -EINVAL;
 107
 108         obd->u.obt.obt_qctxt.lqc_iunit_sz = val;
 109         return count;
 110 }
 111 EXPORT_SYMBOL(lprocfs_wr_iunit);
 112
 113 int lprocfs_rd_btune(char *page, char **start, off_t off, int count,
 114                      int *eof, void *data)
 115 {
 116         struct obd_device *obd = (struct obd_device *)data;
 117         LASSERT(obd != NULL);
 118
 119         return snprintf(page, count, "%lu\n",
 120                         obd->u.obt.obt_qctxt.lqc_btune_sz);
 121 }
 122 EXPORT_SYMBOL(lprocfs_rd_btune);
 123
 124 int lprocfs_rd_itune(char *page, char **start, off_t off, int count,
 125                      int *eof, void *data)
 126 {
 127         struct obd_device *obd = (struct obd_device *)data;
 128         LASSERT(obd != NULL);
 129
 130         return snprintf(page, count, "%lu\n",
 131                         obd->u.obt.obt_qctxt.lqc_itune_sz);
 132 }
 133 EXPORT_SYMBOL(lprocfs_rd_itune);
 134
 135 int lprocfs_wr_btune(struct file *file, const char *buffer,
 136                      unsigned long count, void *data)
 137 {
 138         struct obd_device *obd = (struct obd_device *)data;
 139         int val, rc;
 140         LASSERT(obd != NULL);
 141
 142         rc = lprocfs_write_helper(buffer, count, &val);
 143         if (rc)
 144                 return rc;
 145
 146         if (val <= QUOTABLOCK_SIZE * MIN_QLIMIT || val % QUOTABLOCK_SIZE ||
 147             val >= obd->u.obt.obt_qctxt.lqc_bunit_sz)
 148                 return -EINVAL;
 149
 150         obd->u.obt.obt_qctxt.lqc_btune_sz = val;
 151         return count;
 152 }
 153 EXPORT_SYMBOL(lprocfs_wr_btune);
 154
 155 int lprocfs_wr_itune(struct file *file, const char *buffer,
 156                      unsigned long count, void *data)
 157 {
 158         struct obd_device *obd = (struct obd_device *)data;
 159         int val, rc;
 160         LASSERT(obd != NULL);
 161
 162         rc = lprocfs_write_helper(buffer, count, &val);
 163         if (rc)
 164                 return rc;
 165
 166         if (val <= MIN_QLIMIT ||
 167             val >= obd->u.obt.obt_qctxt.lqc_iunit_sz)
 168                 return -EINVAL;
 169
 170         obd->u.obt.obt_qctxt.lqc_itune_sz = val;
 171         return count;
 172 }
 173 EXPORT_SYMBOL(lprocfs_wr_itune);
 174
 175 #define USER_QUOTA      1
 176 #define GROUP_QUOTA     2
 177
 178 #define MAX_STYPE_SIZE  4
 179 int lprocfs_rd_type(char *page, char **start, off_t off, int count,
 180                     int *eof, void *data)
 181 {
 182         struct obd_device *obd = (struct obd_device *)data;
 183         char stype[MAX_STYPE_SIZE + 1] = "";
 184         int type = obd->u.obt.obt_qctxt.lqc_atype;
 185         LASSERT(obd != NULL);
 186
 187         if (type == 0) {
 188                 strcpy(stype, "off");
 189         } else {
 190                 if (type & USER_QUOTA)
 191                         strcat(stype, "u");
 192                 if (type & GROUP_QUOTA)
 193                         strcat(stype, "g");
 194         }
 195
 196         return snprintf(page, count, "%s\n", stype);
 197 }
 198 EXPORT_SYMBOL(lprocfs_rd_type);
 199
 200 static int auto_quota_on(struct obd_device *obd, int type,
 201                          struct super_block *sb, int is_master)
 202 {
 203         struct obd_quotactl *oqctl;
 204         struct lvfs_run_ctxt saved;
 205         int rc;
 206         ENTRY;
 207
 208         LASSERT(type == USRQUOTA || type == GRPQUOTA || type == UGQUOTA);
 209
 210         /* quota already turned on */
 211         if (obd->u.obt.obt_qctxt.lqc_status)
 212                 RETURN(0);
 213
 214         OBD_ALLOC_PTR(oqctl);
 215         if (!oqctl)
 216                 RETURN(-ENOMEM);
 217
 218         oqctl->qc_type = type;
 219         oqctl->qc_cmd = Q_QUOTAON;
 220         oqctl->qc_id = QFMT_LDISKFS;
 221
 222         push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 223
 224         if (!is_master)
 225                 goto local_quota;
 226
 227         /* turn on cluster wide quota */
 228         rc = mds_admin_quota_on(obd, oqctl);
 229         if (rc) {
 230                 CDEBUG(rc == -ENOENT ? D_QUOTA : D_ERROR,
 231                        "auto-enable admin quota failed. rc=%d\n", rc);
 232                 GOTO(out_pop, rc);
 233         }
 234 local_quota:
 235         /* turn on local quota */
 236         rc = fsfilt_quotactl(obd, sb, oqctl);
 237         if (rc) {
 238                 CDEBUG(rc == -ENOENT ? D_QUOTA : D_ERROR,
 239                        "auto-enable local quota failed. rc=%d\n", rc);
 240                 if (is_master)
 241                         mds_quota_off(obd, oqctl);
 242         } else {
 243                 obd->u.obt.obt_qctxt.lqc_status = 1;
 244         }
 245 out_pop:
 246         pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 247
 248         OBD_FREE_PTR(oqctl);
 249         RETURN(rc);
 250 }
 251
 252 int lprocfs_wr_type(struct file *file, const char *buffer,
 253                     unsigned long count, void *data)
 254 {
 255         struct obd_device *obd = (struct obd_device *)data;
 256         struct obd_device_target *obt = &obd->u.obt;
 257         int type = 0;
 258         char stype[MAX_STYPE_SIZE + 1] = "";
 259         LASSERT(obd != NULL);
 260
 261         if (copy_from_user(stype, buffer, MAX_STYPE_SIZE))
 262                 return -EFAULT;
 263
 264         if (strchr(stype, 'u'))
 265                 type |= USER_QUOTA;
 266         if (strchr(stype, 'g'))
 267                 type |= GROUP_QUOTA;
 268
 269         obt->obt_qctxt.lqc_atype = type;
 270
 271         if (type == 0)
 272                 return count;
 273
 274         if (!strcmp(obd->obd_type->typ_name, LUSTRE_MDS_NAME))
 275                 auto_quota_on(obd, type - 1, obt->obt_sb, 1);
 276         else if (!strcmp(obd->obd_type->typ_name, LUSTRE_OST_NAME))
 277                 auto_quota_on(obd, type - 1, obt->obt_sb, 0);
 278         else
 279                 return -EFAULT;
 280
 281         return count;
 282 }
 283 EXPORT_SYMBOL(lprocfs_wr_type);
 284 #endif /* LPROCFS */
 285
 286 static int filter_quota_setup(struct obd_device *obd)
 287 {
 288         int rc = 0;
 289         struct obd_device_target *obt = &obd->u.obt;
 290         ENTRY;
 291
 292         atomic_set(&obt->obt_quotachecking, 1);
 293         rc = qctxt_init(&obt->obt_qctxt, obt->obt_sb, NULL);
 294         if (rc) {
 295                 CERROR("initialize quota context failed! (rc:%d)\n", rc);
 296                 RETURN(rc);
 297         }
 298         RETURN(rc);
 299 }
 300
 301 static int filter_quota_cleanup(struct obd_device *obd)
 302 {
 303         qctxt_cleanup(&obd->u.obt.obt_qctxt, 0);
 304         return 0;
 305 }
 306
 307 static int filter_quota_setinfo(struct obd_export *exp, struct obd_device *obd)
 308 {
 309         struct obd_import *imp;
 310
 311         /* setup the quota context import */
 312         obd->u.obt.obt_qctxt.lqc_import = exp->exp_imp_reverse;
 313
 314         /* make imp's connect flags equal relative exp's connect flags
 315          * adding it to avoid the scan export list
 316          */
 317         imp = exp->exp_imp_reverse;
 318         if (imp)
 319                 imp->imp_connect_data.ocd_connect_flags |=
 320                         (exp->exp_connect_flags & OBD_CONNECT_QUOTA64);
 321
 322         /* start quota slave recovery thread. (release high limits) */
 323         qslave_start_recovery(obd, &obd->u.obt.obt_qctxt);
 324         return 0;
 325 }
 326 static int filter_quota_enforce(struct obd_device *obd, unsigned int ignore)
 327 {
 328         ENTRY;
 329
 330         if (!sb_any_quota_enabled(obd->u.obt.obt_sb))
 331                 RETURN(0);
 332
 333         if (ignore)
 334                 cap_raise(current->cap_effective, CAP_SYS_RESOURCE);
 335         else
 336                 cap_lower(current->cap_effective, CAP_SYS_RESOURCE);
 337
 338         RETURN(0);
 339 }
 340
 341 static int filter_quota_getflag(struct obd_device *obd, struct obdo *oa)
 342 {
 343         struct obd_device_target *obt = &obd->u.obt;
 344         int err, cnt, rc = 0;
 345         struct obd_quotactl *oqctl;
 346         ENTRY;
 347
 348         if (!sb_any_quota_enabled(obt->obt_sb))
 349                 RETURN(0);
 350
 351         oa->o_flags &= ~(OBD_FL_NO_USRQUOTA | OBD_FL_NO_GRPQUOTA);
 352
 353         OBD_ALLOC_PTR(oqctl);
 354         if (!oqctl) {
 355                 CERROR("Not enough memory!");
 356                 RETURN(-ENOMEM);
 357         }
 358
 359         for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
 360                 memset(oqctl, 0, sizeof(*oqctl));
 361
 362                 oqctl->qc_cmd = Q_GETQUOTA;
 363                 oqctl->qc_type = cnt;
 364                 oqctl->qc_id = (cnt == USRQUOTA) ? oa->o_uid : oa->o_gid;
 365                 err = fsfilt_quotactl(obd, obt->obt_sb, oqctl);
 366                 if (err) {
 367                         if (!rc)
 368                                 rc = err;
 369                         continue;
 370                 }
 371
 372                 /* set over quota flags for a uid/gid */
 373                 oa->o_valid |= (cnt == USRQUOTA) ?
 374                                OBD_MD_FLUSRQUOTA : OBD_MD_FLGRPQUOTA;
 375                 if (oqctl->qc_dqblk.dqb_bhardlimit &&
 376                    (toqb(oqctl->qc_dqblk.dqb_curspace) >
 377                     oqctl->qc_dqblk.dqb_bhardlimit))
 378                         oa->o_flags |= (cnt == USRQUOTA) ?
 379                                 OBD_FL_NO_USRQUOTA : OBD_FL_NO_GRPQUOTA;
 380         }
 381         OBD_FREE_PTR(oqctl);
 382         RETURN(rc);
 383 }
 384
 385 static int filter_quota_acquire(struct obd_device *obd, unsigned int uid,
 386                                 unsigned int gid)
 387 {
 388         struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
 389         int rc;
 390         ENTRY;
 391
 392         rc = qctxt_adjust_qunit(obd, qctxt, uid, gid, 1, 1);
 393         RETURN(rc == -EAGAIN);
 394 }
 395
 396 static int mds_quota_init(void)
 397 {
 398         return lustre_dquot_init();
 399 }
 400
 401 static int mds_quota_exit(void)
 402 {
 403         lustre_dquot_exit();
 404         return 0;
 405 }
 406
 407 static int mds_quota_setup(struct obd_device *obd)
 408 {
 409         struct obd_device_target *obt = &obd->u.obt;
 410         struct mds_obd *mds = &obd->u.mds;
 411         int rc;
 412         ENTRY;
 413
 414         atomic_set(&obt->obt_quotachecking, 1);
 415         /* initialize quota master and quota context */
 416         sema_init(&mds->mds_qonoff_sem, 1);
 417         rc = qctxt_init(&obt->obt_qctxt, obt->obt_sb, dqacq_handler);
 418         if (rc) {
 419                 CERROR("initialize quota context failed! (rc:%d)\n", rc);
 420                 RETURN(rc);
 421         }
 422         RETURN(rc);
 423 }
 424
 425 static int mds_quota_cleanup(struct obd_device *obd)
 426 {
 427         qctxt_cleanup(&obd->u.obt.obt_qctxt, 0);
 428         RETURN(0);
 429 }
 430
 431 static int mds_quota_fs_cleanup(struct obd_device *obd)
 432 {
 433         struct mds_obd *mds = &obd->u.mds;
 434         int i;
 435         ENTRY;
 436
 437         /* close admin quota files */
 438         down(&mds->mds_qonoff_sem);
 439         for (i = 0; i < MAXQUOTAS; i++) {
 440                 if (mds->mds_quota_info.qi_files[i]) {
 441                         filp_close(mds->mds_quota_info.qi_files[i], 0);
 442                         mds->mds_quota_info.qi_files[i] = NULL;
 443                 }
 444         }
 445         up(&mds->mds_qonoff_sem);
 446         RETURN(0);
 447 }
 448 #endif /* __KERNEL__ */
 449
 450 struct osc_quota_info {
 451         struct list_head        oqi_hash;       /* hash list */
 452         struct client_obd      *oqi_cli;        /* osc obd */
 453         unsigned int            oqi_id;         /* uid/gid of a file */
 454         short                   oqi_type;       /* quota type */
 455 };
 456
 457 spinlock_t qinfo_list_lock = SPIN_LOCK_UNLOCKED;
 458
 459 static struct list_head qinfo_hash[NR_DQHASH];
 460 /* SLAB cache for client quota context */
 461 cfs_mem_cache_t *qinfo_cachep = NULL;
 462
 463 static inline int hashfn(struct client_obd *cli, unsigned long id, int type)
 464                          __attribute__((__const__));
 465
 466 static inline int hashfn(struct client_obd *cli, unsigned long id, int type)
 467 {
 468         unsigned long tmp = ((unsigned long)cli>>6) ^ id;
 469         tmp = (tmp * (MAXQUOTAS - type)) % NR_DQHASH;
 470         return tmp;
 471 }
 472
 473 /* caller must hold qinfo_list_lock */
 474 static inline void insert_qinfo_hash(struct osc_quota_info *oqi)
 475 {
 476         struct list_head *head = qinfo_hash +
 477                 hashfn(oqi->oqi_cli, oqi->oqi_id, oqi->oqi_type);
 478
 479         LASSERT_SPIN_LOCKED(&qinfo_list_lock);
 480         list_add(&oqi->oqi_hash, head);
 481 }
 482
 483 /* caller must hold qinfo_list_lock */
 484 static inline void remove_qinfo_hash(struct osc_quota_info *oqi)
 485 {
 486         LASSERT_SPIN_LOCKED(&qinfo_list_lock);
 487         list_del_init(&oqi->oqi_hash);
 488 }
 489
 490 /* caller must hold qinfo_list_lock */
 491 static inline struct osc_quota_info *find_qinfo(struct client_obd *cli,
 492                                                 unsigned int id, int type)
 493 {
 494         unsigned int hashent = hashfn(cli, id, type);
 495         struct osc_quota_info *oqi;
 496
 497         LASSERT_SPIN_LOCKED(&qinfo_list_lock);
 498         list_for_each_entry(oqi, &qinfo_hash[hashent], oqi_hash) {
 499                 if (oqi->oqi_cli == cli &&
 500                     oqi->oqi_id == id && oqi->oqi_type == type)
 501                         return oqi;
 502         }
 503         return NULL;
 504 }
 505
 506 static struct osc_quota_info *alloc_qinfo(struct client_obd *cli,
 507                                           unsigned int id, int type)
 508 {
 509         struct osc_quota_info *oqi;
 510         ENTRY;
 511
 512         OBD_SLAB_ALLOC(oqi, qinfo_cachep, CFS_ALLOC_STD, sizeof(*oqi));
 513         if(!oqi)
 514                 RETURN(NULL);
 515
 516         INIT_LIST_HEAD(&oqi->oqi_hash);
 517         oqi->oqi_cli = cli;
 518         oqi->oqi_id = id;
 519         oqi->oqi_type = type;
 520
 521         RETURN(oqi);
 522 }
 523
 524 static void free_qinfo(struct osc_quota_info *oqi)
 525 {
 526         OBD_SLAB_FREE(oqi, qinfo_cachep, sizeof(*oqi));
 527 }
 528
 529 int osc_quota_chkdq(struct client_obd *cli,
 530                     unsigned int uid, unsigned int gid)
 531 {
 532         unsigned int id;
 533         int cnt, rc = QUOTA_OK;
 534         ENTRY;
 535
 536         spin_lock(&qinfo_list_lock);
 537         for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
 538                 struct osc_quota_info *oqi = NULL;
 539
 540                 id = (cnt == USRQUOTA) ? uid : gid;
 541                 oqi = find_qinfo(cli, id, cnt);
 542                 if (oqi) {
 543                         rc = NO_QUOTA;
 544                         break;
 545                 }
 546         }
 547         spin_unlock(&qinfo_list_lock);
 548
 549         RETURN(rc);
 550 }
 551
 552 int osc_quota_setdq(struct client_obd *cli,
 553                     unsigned int uid, unsigned int gid,
 554                     obd_flag valid, obd_flag flags)
 555 {
 556         unsigned int id;
 557         obd_flag noquota;
 558         int cnt, rc = 0;
 559         ENTRY;
 560
 561
 562         for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
 563                 struct osc_quota_info *oqi, *old;
 564
 565                 if (!(valid & ((cnt == USRQUOTA) ?
 566                     OBD_MD_FLUSRQUOTA : OBD_MD_FLGRPQUOTA)))
 567                         continue;
 568
 569                 id = (cnt == USRQUOTA) ? uid : gid;
 570                 noquota = (cnt == USRQUOTA) ?
 571                     (flags & OBD_FL_NO_USRQUOTA) : (flags & OBD_FL_NO_GRPQUOTA);
 572
 573                 oqi = alloc_qinfo(cli, id, cnt);
 574                 if (oqi) {
 575                         spin_lock(&qinfo_list_lock);
 576
 577                         old = find_qinfo(cli, id, cnt);
 578                         if (old && !noquota)
 579                                 remove_qinfo_hash(old);
 580                         else if (!old && noquota)
 581                                 insert_qinfo_hash(oqi);
 582
 583                         spin_unlock(&qinfo_list_lock);
 584
 585                         if (old || !noquota)
 586                                 free_qinfo(oqi);
 587                         if (old && !noquota)
 588                                 free_qinfo(old);
 589                 } else {
 590                         CERROR("not enough mem!\n");
 591                         rc = -ENOMEM;
 592                         break;
 593                 }
 594         }
 595
 596         RETURN(rc);
 597 }
 598
 599 int osc_quota_cleanup(struct obd_device *obd)
 600 {
 601         struct client_obd *cli = &obd->u.cli;
 602         struct osc_quota_info *oqi, *n;
 603         int i;
 604         ENTRY;
 605
 606         spin_lock(&qinfo_list_lock);
 607         for (i = 0; i < NR_DQHASH; i++) {
 608                 list_for_each_entry_safe(oqi, n, &qinfo_hash[i], oqi_hash) {
 609                         if (oqi->oqi_cli != cli)
 610                                 continue;
 611                         remove_qinfo_hash(oqi);
 612                         free_qinfo(oqi);
 613                 }
 614         }
 615         spin_unlock(&qinfo_list_lock);
 616
 617         RETURN(0);
 618 }
 619
 620 int osc_quota_init(void)
 621 {
 622         int i;
 623         ENTRY;
 624
 625         LASSERT(qinfo_cachep == NULL);
 626         qinfo_cachep = cfs_mem_cache_create("osc_quota_info",
 627                                          sizeof(struct osc_quota_info),
 628                                          0, 0);
 629         if (!qinfo_cachep)
 630                 RETURN(-ENOMEM);
 631
 632         for (i = 0; i < NR_DQHASH; i++)
 633                 INIT_LIST_HEAD(qinfo_hash + i);
 634
 635         RETURN(0);
 636 }
 637
 638 int osc_quota_exit(void)
 639 {
 640         struct osc_quota_info *oqi, *n;
 641         int i, rc;
 642         ENTRY;
 643
 644         spin_lock(&qinfo_list_lock);
 645         for (i = 0; i < NR_DQHASH; i++) {
 646                 list_for_each_entry_safe(oqi, n, &qinfo_hash[i], oqi_hash) {
 647                         remove_qinfo_hash(oqi);
 648                         free_qinfo(oqi);
 649                 }
 650         }
 651         spin_unlock(&qinfo_list_lock);
 652
 653         rc = cfs_mem_cache_destroy(qinfo_cachep);
 654         LASSERTF(rc == 0, "couldn't destory qinfo_cachep slab\n");
 655         qinfo_cachep = NULL;
 656
 657         RETURN(0);
 658 }
 659
 660 #ifdef __KERNEL__
 661 quota_interface_t mds_quota_interface = {
 662         .quota_init     = mds_quota_init,
 663         .quota_exit     = mds_quota_exit,
 664         .quota_setup    = mds_quota_setup,
 665         .quota_cleanup  = mds_quota_cleanup,
 666         .quota_check    = target_quota_check,
 667         .quota_ctl      = mds_quota_ctl,
 668         .quota_fs_cleanup       =mds_quota_fs_cleanup,
 669         .quota_recovery = mds_quota_recovery,
 670         .quota_adjust   = mds_quota_adjust,
 671 };
 672
 673 quota_interface_t filter_quota_interface = {
 674         .quota_setup    = filter_quota_setup,
 675         .quota_cleanup  = filter_quota_cleanup,
 676         .quota_check    = target_quota_check,
 677         .quota_ctl      = filter_quota_ctl,
 678         .quota_setinfo  = filter_quota_setinfo,
 679         .quota_enforce  = filter_quota_enforce,
 680         .quota_getflag  = filter_quota_getflag,
 681         .quota_acquire  = filter_quota_acquire,
 682         .quota_adjust   = filter_quota_adjust,
 683 };
 684 #endif /* __KERNEL__ */
 685
 686 quota_interface_t mdc_quota_interface = {
 687         .quota_ctl      = client_quota_ctl,
 688         .quota_check    = client_quota_check,
 689         .quota_poll_check = client_quota_poll_check,
 690 };
 691
 692 quota_interface_t osc_quota_interface = {
 693         .quota_ctl      = client_quota_ctl,
 694         .quota_check    = client_quota_check,
 695         .quota_poll_check = client_quota_poll_check,
 696         .quota_init     = osc_quota_init,
 697         .quota_exit     = osc_quota_exit,
 698         .quota_chkdq    = osc_quota_chkdq,
 699         .quota_setdq    = osc_quota_setdq,
 700         .quota_cleanup  = osc_quota_cleanup,
 701 };
 702
 703 quota_interface_t lov_quota_interface = {
 704         .quota_check    = lov_quota_check,
 705         .quota_ctl      = lov_quota_ctl,
 706 };
 707
 708 #ifdef __KERNEL__
 709 static int __init init_lustre_quota(void)
 710 {
 711         int rc = qunit_cache_init();
 712         if (rc)
 713                 return rc;
 714         PORTAL_SYMBOL_REGISTER(filter_quota_interface);
 715         PORTAL_SYMBOL_REGISTER(mds_quota_interface);
 716         PORTAL_SYMBOL_REGISTER(mdc_quota_interface);
 717         PORTAL_SYMBOL_REGISTER(osc_quota_interface);
 718         PORTAL_SYMBOL_REGISTER(lov_quota_interface);
 719         return 0;
 720 }
 721
 722 static void /*__exit*/ exit_lustre_quota(void)
 723 {
 724         PORTAL_SYMBOL_UNREGISTER(filter_quota_interface);
 725         PORTAL_SYMBOL_UNREGISTER(mds_quota_interface);
 726         PORTAL_SYMBOL_UNREGISTER(mdc_quota_interface);
 727         PORTAL_SYMBOL_UNREGISTER(osc_quota_interface);
 728         PORTAL_SYMBOL_UNREGISTER(lov_quota_interface);
 729
 730         qunit_cache_cleanup();
 731 }
 732
 733 MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
 734 MODULE_DESCRIPTION("Lustre Quota");
 735 MODULE_LICENSE("GPL");
 736
 737 cfs_module(lquota, "1.0.0", init_lustre_quota, exit_lustre_quota);
 738
 739 EXPORT_SYMBOL(mds_quota_interface);
 740 EXPORT_SYMBOL(filter_quota_interface);
 741 EXPORT_SYMBOL(mdc_quota_interface);
 742 EXPORT_SYMBOL(osc_quota_interface);
 743 EXPORT_SYMBOL(lov_quota_interface);
 744 #endif /* __KERNEL */