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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 #ifndef _LUSTRE_QUOTA_H
38 #define _LUSTRE_QUOTA_H
39
40 #if defined(__linux__)
41 #include <linux/lustre_quota.h>
42 #elif defined(__APPLE__)
43 #include <darwin/lustre_quota.h>
44 #elif defined(__WINNT__)
45 #include <winnt/lustre_quota.h>
46 #else
47 #error Unsupported operating system.
48 #endif
49
50 #include <lustre/lustre_idl.h>
51 #include <lustre_net.h>
52 #include <lvfs.h>
53 #include <obd_support.h>
54 #include <class_hash.h>
55
56 struct obd_device;
57 struct client_obd;
58
59 #ifndef NR_DQHASH
60 #define NR_DQHASH 45
61 #endif
62
63 #ifdef HAVE_QUOTA_SUPPORT
64
65 #ifdef __KERNEL__
66
67 #ifdef LPROCFS
68 enum {
69         LQUOTA_FIRST_STAT = 0,
70         /** @{ */
71         /**
72          * these four are for measuring quota requests, for both of
73          * quota master and quota slaves
74          */
75         LQUOTA_SYNC_ACQ = LQUOTA_FIRST_STAT,
76         LQUOTA_SYNC_REL,
77         LQUOTA_ASYNC_ACQ,
78         LQUOTA_ASYNC_REL,
79         /** }@ */
80         /** @{ */
81         /**
82          * these four measure how much time I/O threads spend on dealing
83          * with quota before and after writing data or creating files,
84          * only for quota slaves(lquota_chkquota and lquota_pending_commit)
85          */
86         LQUOTA_WAIT_FOR_CHK_BLK,
87         LQUOTA_WAIT_FOR_CHK_INO,
88         LQUOTA_WAIT_FOR_COMMIT_BLK,
89         LQUOTA_WAIT_FOR_COMMIT_INO,
90         /** }@ */
91         /** @{ */
92         /**
93          * these two are for measuring time waiting return of quota reqs
94          * (qctxt_wait_pending_dqacq), only for quota salves
95          */
96         LQUOTA_WAIT_PENDING_BLK_QUOTA,
97         LQUOTA_WAIT_PENDING_INO_QUOTA,
98         /** }@ */
99         /** @{ */
100         /**
101          * these two are for those when they are calling
102          * qctxt_wait_pending_dqacq, the quota req has returned already,
103          * only for quota salves
104          */
105         LQUOTA_NOWAIT_PENDING_BLK_QUOTA,
106         LQUOTA_NOWAIT_PENDING_INO_QUOTA,
107         /** }@ */
108         /** @{ */
109         /**
110          * these are for quota ctl
111          */
112         LQUOTA_QUOTA_CTL,
113         /** }@ */
114         /** @{ */
115         /**
116          * these are for adjust quota qunit, for both of
117          * quota master and quota slaves
118          */
119         LQUOTA_ADJUST_QUNIT,
120         LQUOTA_LAST_STAT
121         /** }@ */
122 };
123 #endif  /* LPROCFS */
124
125 /* structures to access admin quotafile */
126 struct lustre_mem_dqinfo {
127         unsigned int dqi_bgrace;
128         unsigned int dqi_igrace;
129         unsigned long dqi_flags;
130         unsigned int dqi_blocks;
131         unsigned int dqi_free_blk;
132         unsigned int dqi_free_entry;
133 };
134
135 struct lustre_quota_info {
136         struct file *qi_files[MAXQUOTAS];
137         struct lustre_mem_dqinfo qi_info[MAXQUOTAS];
138         lustre_quota_version_t qi_version;
139 };
140
141 #define DQ_STATUS_AVAIL         0x0     /* Available dquot */
142 #define DQ_STATUS_SET           0x01    /* Sombody is setting dquot */
143 #define DQ_STATUS_RECOVERY      0x02    /* dquot is in recovery */
144
145 struct lustre_mem_dqblk {
146         __u64 dqb_bhardlimit;   /**< absolute limit on disk blks alloc */
147         __u64 dqb_bsoftlimit;   /**< preferred limit on disk blks */
148         __u64 dqb_curspace;     /**< current used space */
149         __u64 dqb_ihardlimit;   /**< absolute limit on allocated inodes */
150         __u64 dqb_isoftlimit;   /**< preferred inode limit */
151         __u64 dqb_curinodes;    /**< current # allocated inodes */
152         time_t dqb_btime;       /**< time limit for excessive disk use */
153         time_t dqb_itime;       /**< time limit for excessive inode use */
154 };
155
156 struct lustre_dquot {
157         /** Hash list in memory, protect by dquot_hash_lock */
158         struct list_head dq_hash;
159         /** Protect the data in lustre_dquot */
160         struct semaphore dq_sem;
161         /** Use count */
162         int dq_refcnt;
163         /** Pointer of quota info it belongs to */
164         struct lustre_quota_info *dq_info;
165         /** Offset of dquot on disk */
166         loff_t dq_off;
167         /** ID this applies to (uid, gid) */
168         unsigned int dq_id;
169         /** Type fo quota (USRQUOTA, GRPQUOUTA) */
170         int dq_type;
171         /** See DQ_STATUS_ */
172         unsigned short dq_status;
173         /** See DQ_ in quota.h */
174         unsigned long dq_flags;
175         /** Diskquota usage */
176         struct lustre_mem_dqblk dq_dqb;
177 };
178
179 struct dquot_id {
180         struct list_head        di_link;
181         __u32                   di_id;
182 };
183
184 #define QFILE_CHK               1
185 #define QFILE_RD_INFO           2
186 #define QFILE_WR_INFO           3
187 #define QFILE_INIT_INFO         4
188 #define QFILE_RD_DQUOT          5
189 #define QFILE_WR_DQUOT          6
190 #define QFILE_CONVERT           7
191
192 /* admin quotafile operations */
193 int lustre_check_quota_file(struct lustre_quota_info *lqi, int type);
194 int lustre_read_quota_info(struct lustre_quota_info *lqi, int type);
195 int lustre_write_quota_info(struct lustre_quota_info *lqi, int type);
196 int lustre_read_dquot(struct lustre_dquot *dquot);
197 int lustre_commit_dquot(struct lustre_dquot *dquot);
198 int lustre_init_quota_info(struct lustre_quota_info *lqi, int type);
199 int lustre_get_qids(struct file *file, struct inode *inode, int type,
200                     struct list_head *list);
201 int lustre_quota_convert(struct lustre_quota_info *lqi, int type);
202
203 #define LL_DQUOT_OFF(sb)    DQUOT_OFF(sb)
204
205 typedef int (*dqacq_handler_t) (struct obd_device * obd, struct qunit_data * qd,
206                                 int opc);
207
208 /* user quota is turned on on filter */
209 #define LQC_USRQUOTA_FLAG (1 << 0)
210 /* group quota is turned on on filter */
211 #define LQC_GRPQUOTA_FLAG (1 << 1)
212
213 #define UGQUOTA2LQC(id) ((Q_TYPEMATCH(id, USRQUOTA) ? LQC_USRQUOTA_FLAG : 0) | \
214                          (Q_TYPEMATCH(id, GRPQUOTA) ? LQC_GRPQUOTA_FLAG : 0))
215
216 struct lustre_quota_ctxt {
217         /** superblock this applies to */
218         struct super_block *lqc_sb;
219         /** obd_device_target for obt_rwsem */
220         struct obd_device_target *lqc_obt;
221         /** import used to send dqacq/dqrel RPC */
222         struct obd_import *lqc_import;
223         /** dqacq/dqrel RPC handler, only for quota master */
224         dqacq_handler_t lqc_handler;
225         /** quota flags */
226         unsigned long lqc_flags;
227         /** @{ */
228         unsigned long lqc_recovery:1,   /** Doing recovery */
229                       lqc_switch_qs:1,  /**
230                                          * the function of change qunit size
231                                          * 0:Off, 1:On
232                                          */
233                       lqc_valid:1,      /** this qctxt is valid or not */
234                       lqc_setup:1;      /**
235                                          * tell whether of not quota_type has
236                                          * been processed, so that the master
237                                          * knows when it can start processing
238                                          * incoming acq/rel quota requests
239                                          */
240         /** }@ */
241         /**
242          * original unit size of file quota and
243          * upper limitation for adjust file qunit
244          */
245         unsigned long lqc_iunit_sz;
246         /**
247          * Trigger dqacq when available file
248          * quota less than this value, trigger
249          * dqrel when available file quota
250          * more than this value + 1 iunit
251          */
252         unsigned long lqc_itune_sz;
253         /**
254          * original unit size of block quota and
255          * upper limitation for adjust block qunit
256          */
257         unsigned long lqc_bunit_sz;
258         /** See comment of lqc_itune_sz */
259         unsigned long lqc_btune_sz;
260         /** all lustre_qunit_size structures */
261         struct lustre_hash *lqc_lqs_hash;
262
263         /** @{ */
264         /**
265          * the values below are relative to how master change its qunit sizes
266          */
267         /**
268          * this affects the boundary of
269          * shrinking and enlarging qunit size. default=4
270          */
271         unsigned long lqc_cqs_boundary_factor;
272         /** the least value of block qunit */
273         unsigned long lqc_cqs_least_bunit;
274         /** the least value of inode qunit */
275         unsigned long lqc_cqs_least_iunit;
276         /**
277          * when enlarging, qunit size will
278          * mutilple it; when shrinking,
279          * qunit size will divide it
280          */
281         unsigned long lqc_cqs_qs_factor;
282         /**
283          * avoid ping-pong effect of
284          * adjusting qunit size. How many
285          * seconds must be waited between
286          * enlarging and shinking qunit
287          */
288         /** }@ */
289         int           lqc_switch_seconds;
290         /**
291          * when blk qunit reaches this value,
292          * later write reqs from client should be sync b=16642
293          */
294         int           lqc_sync_blk;
295         /** guard lqc_imp_valid now */
296         spinlock_t    lqc_lock;
297         /**
298          * when mds isn't connected, threads
299          * on osts who send the quota reqs
300          * with wait==1 will be put here b=14840
301          */
302         cfs_waitq_t   lqc_wait_for_qmaster;
303         struct proc_dir_entry *lqc_proc_dir;
304         /** lquota statistics */
305         struct lprocfs_stats  *lqc_stats;
306 };
307
308 #define QUOTA_MASTER_READY(qctxt)   (qctxt)->lqc_setup = 1
309 #define QUOTA_MASTER_UNREADY(qctxt) (qctxt)->lqc_setup = 0
310
311 struct lustre_qunit_size {
312         struct hlist_node lqs_hash; /** the hash entry */
313         unsigned int lqs_id;        /** id of user/group */
314         unsigned long lqs_flags;    /** is user/group; FULLBUF or LESSBUF */
315         unsigned long lqs_iunit_sz; /** Unit size of file quota currently */
316         /**
317          * Trigger dqacq when available file quota
318          * less than this value, trigger dqrel
319          * when more than this value + 1 iunit
320          */
321         unsigned long lqs_itune_sz;
322         unsigned long lqs_bunit_sz; /** Unit size of block quota currently */
323         unsigned long lqs_btune_sz; /** See comment of lqs itune sz */
324         /** the blocks reached ost and don't finish */
325         unsigned long lqs_bwrite_pending;
326         /** the inodes reached mds and don't finish */
327         unsigned long lqs_iwrite_pending;
328         /** when inodes are allocated/released, this value will record it */
329         long long lqs_ino_rec;
330         /** when blocks are allocated/released, this value will record it */
331         long long lqs_blk_rec;
332         atomic_t lqs_refcount;
333         cfs_time_t lqs_last_bshrink;   /** time of last block shrink */
334         cfs_time_t lqs_last_ishrink;   /** time of last inode shrink */
335         spinlock_t lqs_lock;
336         struct quota_adjust_qunit lqs_key; /** hash key */
337         struct lustre_quota_ctxt *lqs_ctxt; /** quota ctxt */
338 };
339
340 #define LQS_IS_GRP(lqs)    ((lqs)->lqs_flags & LQUOTA_FLAGS_GRP)
341 #define LQS_IS_ADJBLK(lqs) ((lqs)->lqs_flags & LQUOTA_FLAGS_ADJBLK)
342 #define LQS_IS_ADJINO(lqs) ((lqs)->lqs_flags & LQUOTA_FLAGS_ADJINO)
343
344 #define LQS_SET_GRP(lqs)    ((lqs)->lqs_flags |= LQUOTA_FLAGS_GRP)
345 #define LQS_SET_ADJBLK(lqs) ((lqs)->lqs_flags |= LQUOTA_FLAGS_ADJBLK)
346 #define LQS_SET_ADJINO(lqs) ((lqs)->lqs_flags |= LQUOTA_FLAGS_ADJINO)
347
348 static inline void lqs_getref(struct lustre_qunit_size *lqs)
349 {
350         atomic_inc(&lqs->lqs_refcount);
351         CDEBUG(D_QUOTA, "lqs=%p refcount %d\n",
352                lqs, atomic_read(&lqs->lqs_refcount));
353 }
354
355 static inline void lqs_putref(struct lustre_qunit_size *lqs)
356 {
357         LASSERT(atomic_read(&lqs->lqs_refcount) > 0);
358
359         /* killing last ref, let's let hash table kill it */
360         if (atomic_read(&lqs->lqs_refcount) == 1) {
361                 lustre_hash_del(lqs->lqs_ctxt->lqc_lqs_hash,
362                                 &lqs->lqs_key, &lqs->lqs_hash);
363                 OBD_FREE_PTR(lqs);
364         } else {
365                 atomic_dec(&lqs->lqs_refcount);
366                 CDEBUG(D_QUOTA, "lqs=%p refcount %d\n",
367                        lqs, atomic_read(&lqs->lqs_refcount));
368
369         }
370 }
371
372 static inline void lqs_initref(struct lustre_qunit_size *lqs)
373 {
374         atomic_set(&lqs->lqs_refcount, 0);
375 }
376
377 #else
378
379 struct lustre_quota_info {
380 };
381
382 struct lustre_quota_ctxt {
383 };
384
385 #define QUOTA_MASTER_READY(qctxt)
386 #define QUOTA_MASTER_UNREADY(qctxt)
387
388 #endif  /* !__KERNEL__ */
389
390 #else
391
392 #define LL_DQUOT_OFF(sb) do {} while(0)
393
394 struct lustre_quota_info {
395 };
396
397 struct lustre_quota_ctxt {
398 };
399
400 #endif /* !HAVE_QUOTA_SUPPORT */
401
402 /* If the (quota limit < qunit * slave count), the slave which can't
403  * acquire qunit should set it's local limit as MIN_QLIMIT */
404 #define MIN_QLIMIT      1
405
406 struct quotacheck_thread_args {
407         struct obd_export   *qta_exp;   /** obd export */
408         struct obd_device   *qta_obd;   /** obd device */
409         struct obd_quotactl  qta_oqctl; /** obd_quotactl args */
410         struct super_block  *qta_sb;    /** obd super block */
411         atomic_t            *qta_sem;   /** obt_quotachecking */
412 };
413
414 struct obd_trans_info;
415 typedef int (*quota_acquire)(struct obd_device *obd, const unsigned int id[],
416                              struct obd_trans_info *oti, int isblk);
417
418 typedef struct {
419         int (*quota_init) (void);
420         int (*quota_exit) (void);
421         int (*quota_setup) (struct obd_device *);
422         int (*quota_cleanup) (struct obd_device *);
423         /**
424          * For quota master, close admin quota files
425          */
426         int (*quota_fs_cleanup) (struct obd_device *);
427         int (*quota_ctl) (struct obd_device *, struct obd_export *,
428                           struct obd_quotactl *);
429         int (*quota_check) (struct obd_device *, struct obd_export *,
430                             struct obd_quotactl *);
431         int (*quota_recovery) (struct obd_device *);
432
433         /**
434          * For quota master/slave, adjust quota limit after fs operation
435          */
436         int (*quota_adjust) (struct obd_device *, const unsigned int[],
437                              const unsigned int[], int, int);
438
439         /**
440          * For quota slave, set import, trigger quota recovery,
441          * For quota master, set lqc_setup
442          */
443         int (*quota_setinfo) (struct obd_device *, void *);
444
445         /**
446          * For quota slave, clear import when relative import is invalid
447          */
448         int (*quota_clearinfo) (struct obd_export *, struct obd_device *);
449
450         /**
451          * For quota slave, set proper thread resoure capability
452          */
453         int (*quota_enforce) (struct obd_device *, unsigned int);
454
455         /**
456          * For quota slave, check whether specified uid/gid is over quota
457          */
458         int (*quota_getflag) (struct obd_device *, struct obdo *);
459
460 #ifdef __KERNEL__
461         /**
462          * For quota slave, acquire/release quota from master if needed
463          */
464         int (*quota_acquire) (struct obd_device *, const unsigned int [],
465                               struct obd_trans_info *, int);
466
467         /**
468          * For quota slave, check whether specified uid/gid's remaining quota
469          * can finish a block_write or inode_create rpc. It updates the pending
470          * record of block and inode, acquires quota if necessary
471          */
472         int (*quota_chkquota) (struct obd_device *, const unsigned int [],
473                                int [], int, quota_acquire,
474                                struct obd_trans_info *, int, struct inode *,
475                                int);
476
477         /**
478          * For quota client, the actions after the pending write is committed
479          */
480         int (*quota_pending_commit) (struct obd_device *, const unsigned int [],
481                                      int [], int);
482 #endif
483
484         /**
485          * For quota client, poll if the quota check done
486          */
487         int (*quota_poll_check) (struct obd_export *, struct if_quotacheck *);
488
489         /**
490          * For quota client, check whether specified uid/gid is over quota
491          */
492         int (*quota_chkdq) (struct client_obd *, const unsigned int []);
493
494         /**
495          * For quota client, set over quota flag for specifed uid/gid
496          */
497         int (*quota_setdq) (struct client_obd *, const unsigned int [],
498                             obd_flag, obd_flag);
499
500         /**
501          * For adjusting qunit size b=10600
502          */
503         int (*quota_adjust_qunit) (struct obd_export *exp,
504                                    struct quota_adjust_qunit *oqaq,
505                                    struct lustre_quota_ctxt *qctxt);
506
507 } quota_interface_t;
508
509 #define Q_COPY(out, in, member) (out)->member = (in)->member
510
511 #define QUOTA_OP(interface, op) interface->quota_ ## op
512
513 #define QUOTA_CHECK_OP(interface, op)                           \
514 do {                                                            \
515         if (!interface)                                         \
516                 RETURN(0);                                      \
517         if (!QUOTA_OP(interface, op)) {                         \
518                 CERROR("no quota operation: " #op "\n");        \
519                 RETURN(-EOPNOTSUPP);                            \
520         }                                                       \
521 } while(0)
522
523 static inline int lquota_init(quota_interface_t *interface)
524 {
525         int rc;
526         ENTRY;
527
528         QUOTA_CHECK_OP(interface, init);
529         rc = QUOTA_OP(interface, init)();
530         RETURN(rc);
531 }
532
533 static inline int lquota_exit(quota_interface_t *interface)
534 {
535         int rc;
536         ENTRY;
537
538         QUOTA_CHECK_OP(interface, exit);
539         rc = QUOTA_OP(interface, exit)();
540         RETURN(rc);
541 }
542
543 static inline int lquota_setup(quota_interface_t *interface,
544                                struct obd_device *obd)
545 {
546         int rc;
547         ENTRY;
548
549         QUOTA_CHECK_OP(interface, setup);
550         rc = QUOTA_OP(interface, setup)(obd);
551         RETURN(rc);
552 }
553
554 static inline int lquota_cleanup(quota_interface_t *interface,
555                                  struct obd_device *obd)
556 {
557         int rc;
558         ENTRY;
559
560         QUOTA_CHECK_OP(interface, cleanup);
561         rc = QUOTA_OP(interface, cleanup)(obd);
562         RETURN(rc);
563 }
564
565 static inline int lquota_fs_cleanup(quota_interface_t *interface,
566                                     struct obd_device *obd)
567 {
568         int rc;
569         ENTRY;
570
571         QUOTA_CHECK_OP(interface, fs_cleanup);
572         rc = QUOTA_OP(interface, fs_cleanup)(obd);
573         RETURN(rc);
574 }
575
576 static inline int lquota_recovery(quota_interface_t *interface,
577                                   struct obd_device *obd)
578 {
579         int rc;
580         ENTRY;
581
582         QUOTA_CHECK_OP(interface, recovery);
583         rc = QUOTA_OP(interface, recovery)(obd);
584         RETURN(rc);
585 }
586
587 static inline int lquota_check(quota_interface_t *interface,
588                                struct obd_device *obd,
589                                struct obd_export *exp,
590                                struct obd_quotactl *oqctl)
591 {
592         int rc;
593         ENTRY;
594
595         QUOTA_CHECK_OP(interface, check);
596         rc = QUOTA_OP(interface, check)(obd, exp, oqctl);
597         RETURN(rc);
598 }
599
600 static inline int lquota_ctl(quota_interface_t *interface,
601                              struct obd_device *obd,
602                              struct obd_quotactl *oqctl)
603 {
604         int rc;
605         ENTRY;
606
607         QUOTA_CHECK_OP(interface, ctl);
608         rc = QUOTA_OP(interface, ctl)(obd, NULL, oqctl);
609         RETURN(rc);
610 }
611
612 static inline int lquota_adjust(quota_interface_t *interface,
613                                 struct obd_device *obd,
614                                 const unsigned int qcids[],
615                                 const unsigned int qpids[],
616                                 int rc, int opc)
617 {
618         int ret;
619         ENTRY;
620
621         QUOTA_CHECK_OP(interface, adjust);
622         ret = QUOTA_OP(interface, adjust)(obd, qcids, qpids, rc, opc);
623         RETURN(ret);
624 }
625
626 static inline int lquota_chkdq(quota_interface_t *interface,
627                                struct client_obd *cli, const unsigned int qid[])
628 {
629         int rc;
630         ENTRY;
631
632         QUOTA_CHECK_OP(interface, chkdq);
633         rc = QUOTA_OP(interface, chkdq)(cli, qid);
634         RETURN(rc);
635 }
636
637 static inline int lquota_setdq(quota_interface_t *interface,
638                                struct client_obd *cli, const unsigned int qid[],
639                                obd_flag valid, obd_flag flags)
640 {
641         int rc;
642         ENTRY;
643
644         QUOTA_CHECK_OP(interface, setdq);
645         rc = QUOTA_OP(interface, setdq)(cli, qid, valid, flags);
646         RETURN(rc);
647 }
648
649 static inline int lquota_poll_check(quota_interface_t *interface,
650                                     struct obd_export *exp,
651                                     struct if_quotacheck *qchk)
652 {
653         int rc;
654         ENTRY;
655
656         QUOTA_CHECK_OP(interface, poll_check);
657         rc = QUOTA_OP(interface, poll_check)(exp, qchk);
658         RETURN(rc);
659 }
660
661 static inline int lquota_setinfo(quota_interface_t *interface,
662                                  struct obd_device *obd,
663                                  void *data)
664 {
665         int rc;
666         ENTRY;
667
668         QUOTA_CHECK_OP(interface, setinfo);
669         rc = QUOTA_OP(interface, setinfo)(obd, data);
670         RETURN(rc);
671 }
672
673 static inline int lquota_clearinfo(quota_interface_t *interface,
674                                    struct obd_export *exp,
675                                    struct obd_device *obd)
676 {
677         int rc;
678         ENTRY;
679
680         QUOTA_CHECK_OP(interface, clearinfo);
681         rc = QUOTA_OP(interface, clearinfo)(exp, obd);
682         RETURN(rc);
683 }
684
685 static inline int lquota_enforce(quota_interface_t *interface,
686                                  struct obd_device *obd,
687                                  unsigned int ignore)
688 {
689         int rc;
690         ENTRY;
691
692         QUOTA_CHECK_OP(interface, enforce);
693         rc = QUOTA_OP(interface, enforce)(obd, ignore);
694         RETURN(rc);
695 }
696
697 static inline int lquota_getflag(quota_interface_t *interface,
698                                  struct obd_device *obd, struct obdo *oa)
699 {
700         int rc;
701         ENTRY;
702
703         QUOTA_CHECK_OP(interface, getflag);
704         rc = QUOTA_OP(interface, getflag)(obd, oa);
705         RETURN(rc);
706 }
707
708 #ifdef __KERNEL__
709 static inline int lquota_chkquota(quota_interface_t *interface,
710                                   struct obd_device *obd,
711                                   const unsigned int id[], int pending[],
712                                   int count, struct obd_trans_info *oti,
713                                   int isblk, void *data, int frags)
714 {
715         int rc;
716         ENTRY;
717
718         QUOTA_CHECK_OP(interface, chkquota);
719         QUOTA_CHECK_OP(interface, acquire);
720         rc = QUOTA_OP(interface, chkquota)(obd, id, pending, count,
721                                            QUOTA_OP(interface, acquire), oti,
722                                            isblk, (struct inode *)data, frags);
723         RETURN(rc);
724 }
725
726 static inline int lquota_pending_commit(quota_interface_t *interface,
727                                         struct obd_device *obd,
728                                         const unsigned int id[],
729                                         int pending[], int isblk)
730 {
731         int rc;
732         ENTRY;
733
734         QUOTA_CHECK_OP(interface, pending_commit);
735         rc = QUOTA_OP(interface, pending_commit)(obd, id, pending, isblk);
736         RETURN(rc);
737 }
738 #endif
739
740 #ifndef __KERNEL__
741 extern quota_interface_t osc_quota_interface;
742 extern quota_interface_t lov_quota_interface;
743 extern quota_interface_t mdc_quota_interface;
744 extern quota_interface_t lmv_quota_interface;
745
746 #ifndef MAXQUOTAS
747 #define MAXQUOTAS 2
748 #endif
749
750 #ifndef USRQUOTA
751 #define USRQUOTA 0
752 #endif
753
754 #ifndef GRPQUOTA
755 #define GRPQUOTA 1
756 #endif
757
758 #endif
759
760 #define LUSTRE_ADMIN_QUOTAFILES_V2 {\
761         "admin_quotafile_v2.usr",       /** user admin quotafile */\
762         "admin_quotafile_v2.grp"        /** group admin quotafile */\
763 }
764
765 #endif /* _LUSTRE_QUOTA_H */