4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
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18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
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30 * Copyright (c) 2011, 2012, Whamcloud, Inc.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
37 #define DEBUG_SUBSYSTEM S_LQUOTA
40 # include <linux/version.h>
41 # include <linux/module.h>
42 # include <linux/init.h>
43 # include <linux/fs.h>
44 # include <linux/jbd.h>
45 # include <linux/buffer_head.h>
46 # include <linux/workqueue.h>
47 # include <linux/mount.h>
48 #else /* __KERNEL__ */
49 # include <liblustre.h>
52 #include <obd_class.h>
53 #include <lustre_mds.h>
54 #include <lustre_dlm.h>
55 #include <lustre_cfg.h>
57 #include <lustre_fsfilt.h>
58 #include <lustre_quota.h>
59 #include <lprocfs_status.h>
60 #include "quota_internal.h"
64 static cfs_time_t last_print = 0;
65 static DEFINE_SPINLOCK(last_print_lock);
67 static int filter_quota_setup(struct obd_device *obd)
70 struct obd_device_target *obt = &obd->u.obt;
73 cfs_init_rwsem(&obt->obt_rwsem);
74 obt->obt_qfmt = LUSTRE_QUOTA_V2;
75 cfs_sema_init(&obt->obt_quotachecking, 1);
76 rc = qctxt_init(obd, NULL);
78 CERROR("initialize quota context failed! (rc:%d)\n", rc);
83 static int filter_quota_cleanup(struct obd_device *obd)
86 qctxt_cleanup(&obd->u.obt.obt_qctxt, 0);
90 static int filter_quota_setinfo(struct obd_device *obd, void *data)
92 struct obd_export *exp = data;
93 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
94 struct obd_import *imp = exp->exp_imp_reverse;
99 /* setup the quota context import */
100 cfs_spin_lock(&qctxt->lqc_lock);
101 if (qctxt->lqc_import != NULL) {
102 cfs_spin_unlock(&qctxt->lqc_lock);
103 if (qctxt->lqc_import == imp)
104 CDEBUG(D_WARNING, "%s: lqc_import(%p) of obd(%p) was "
105 "activated already.\n", obd->obd_name, imp, obd);
107 CERROR("%s: lqc_import(%p:%p) of obd(%p) was "
108 "activated by others.\n", obd->obd_name,
109 qctxt->lqc_import, imp, obd);
111 qctxt->lqc_import = imp;
112 /* make imp's connect flags equal relative exp's connect flags
113 * adding it to avoid the scan export list */
114 imp->imp_connect_data.ocd_connect_flags |=
115 (exp->exp_connect_flags &
116 (OBD_CONNECT_QUOTA64 | OBD_CONNECT_CHANGE_QS));
117 cfs_spin_unlock(&qctxt->lqc_lock);
118 CDEBUG(D_QUOTA, "%s: lqc_import(%p) of obd(%p) is reactivated "
119 "now.\n", obd->obd_name, imp, obd);
121 cfs_waitq_signal(&qctxt->lqc_wait_for_qmaster);
122 /* start quota slave recovery thread. (release high limits) */
123 qslave_start_recovery(obd, qctxt);
128 static int filter_quota_clearinfo(struct obd_export *exp, struct obd_device *obd)
130 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
131 struct obd_import *imp = exp->exp_imp_reverse;
134 /* lquota may be not set up before destroying export, b=14896 */
135 if (!obd->obd_set_up)
138 if (unlikely(imp == NULL))
141 /* when exp->exp_imp_reverse is destroyed, the corresponding lqc_import
142 * should be invalid b=12374 */
143 cfs_spin_lock(&qctxt->lqc_lock);
144 if (qctxt->lqc_import == imp) {
145 qctxt->lqc_import = NULL;
146 cfs_spin_unlock(&qctxt->lqc_lock);
147 CDEBUG(D_QUOTA, "%s: lqc_import(%p) of obd(%p) is invalid now.\n",
148 obd->obd_name, imp, obd);
149 ptlrpc_cleanup_imp(imp);
150 dqacq_interrupt(qctxt);
152 cfs_spin_unlock(&qctxt->lqc_lock);
157 static int filter_quota_enforce(struct obd_device *obd, unsigned int ignore)
161 if (!ll_sb_any_quota_active(obd->u.obt.obt_sb))
165 CDEBUG(D_QUOTA, "blocks will be written with ignoring quota.\n");
166 cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
168 cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
174 #define GET_OA_ID(flag, oa) (flag == USRQUOTA ? oa->o_uid : oa->o_gid)
175 static int filter_quota_getflag(struct obd_device *obd, struct obdo *oa)
177 struct obd_device_target *obt = &obd->u.obt;
178 struct lustre_quota_ctxt *qctxt = &obt->obt_qctxt;
179 int err, cnt, rc = 0;
180 struct obd_quotactl *oqctl;
183 if (!ll_sb_any_quota_active(obt->obt_sb))
186 OBD_ALLOC_PTR(oqctl);
190 /* set over quota flags for a uid/gid */
191 oa->o_valid |= OBD_MD_FLUSRQUOTA | OBD_MD_FLGRPQUOTA;
192 oa->o_flags &= ~(OBD_FL_NO_USRQUOTA | OBD_FL_NO_GRPQUOTA);
194 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
195 struct lustre_qunit_size *lqs = NULL;
197 /* check if quota is enabled */
198 if (!ll_sb_has_quota_active(obt->obt_sb, cnt))
201 lqs = quota_search_lqs(LQS_KEY(cnt, GET_OA_ID(cnt, oa)),
205 CDEBUG(D_QUOTA, "search lqs for %s %d failed, "
207 cnt == USRQUOTA ? "user" : "group",
208 GET_OA_ID(cnt, oa), rc);
210 } else if (lqs == NULL) {
211 /* continue to check group quota if the file's owner
212 * doesn't have quota limit. LU-530 */
215 cfs_spin_lock(&lqs->lqs_lock);
216 if (lqs->lqs_bunit_sz <= qctxt->lqc_sync_blk) {
217 oa->o_flags |= (cnt == USRQUOTA) ?
218 OBD_FL_NO_USRQUOTA : OBD_FL_NO_GRPQUOTA;
219 cfs_spin_unlock(&lqs->lqs_lock);
220 CDEBUG(D_QUOTA, "set sync flag: bunit(%lu), "
221 "sync_blk(%d)\n", lqs->lqs_bunit_sz,
222 qctxt->lqc_sync_blk);
223 /* this is for quota_search_lqs */
227 cfs_spin_unlock(&lqs->lqs_lock);
228 /* this is for quota_search_lqs */
232 memset(oqctl, 0, sizeof(*oqctl));
234 oqctl->qc_cmd = Q_GETQUOTA;
235 oqctl->qc_type = cnt;
236 oqctl->qc_id = (cnt == USRQUOTA) ? oa->o_uid : oa->o_gid;
237 err = fsfilt_quotactl(obd, obt->obt_sb, oqctl);
241 oa->o_valid &= ~((cnt == USRQUOTA) ? OBD_MD_FLUSRQUOTA :
243 CDEBUG(D_QUOTA, "fsfilt getquota for %s %d failed, "
245 cnt == USRQUOTA ? "user" : "group",
246 cnt == USRQUOTA ? oa->o_uid : oa->o_gid, err);
250 if (oqctl->qc_dqblk.dqb_bhardlimit &&
251 (toqb(oqctl->qc_dqblk.dqb_curspace) >=
252 oqctl->qc_dqblk.dqb_bhardlimit)) {
253 oa->o_flags |= (cnt == USRQUOTA) ?
254 OBD_FL_NO_USRQUOTA : OBD_FL_NO_GRPQUOTA;
255 CDEBUG(D_QUOTA, "out of quota for %s %d\n",
256 cnt == USRQUOTA ? "user" : "group",
257 cnt == USRQUOTA ? oa->o_uid : oa->o_gid);
265 * check whether the left quota of certain uid and gid can satisfy a block_write
266 * or inode_create rpc. When need to acquire quota, return QUOTA_RET_ACQUOTA
268 static int quota_check_common(struct obd_device *obd, const unsigned int id[],
269 int pending[], int count, int cycle, int isblk,
270 struct inode *inode, int frags)
272 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
274 struct qunit_data qdata[MAXQUOTAS];
276 int rc = 0, rc2[2] = { 0, 0 };
279 cfs_spin_lock(&qctxt->lqc_lock);
280 if (!qctxt->lqc_valid){
281 cfs_spin_unlock(&qctxt->lqc_lock);
284 cfs_spin_unlock(&qctxt->lqc_lock);
286 for (i = 0; i < MAXQUOTAS; i++) {
287 struct lustre_qunit_size *lqs = NULL;
289 qdata[i].qd_id = id[i];
290 qdata[i].qd_flags = i;
292 QDATA_SET_BLK(&qdata[i]);
293 qdata[i].qd_count = 0;
295 /* check if quota is enabled */
296 if (!ll_sb_has_quota_active(qctxt->lqc_sb, i))
299 /* ignore root user */
300 if (qdata[i].qd_id == 0 && !QDATA_IS_GRP(&qdata[i]))
303 lqs = quota_search_lqs(LQS_KEY(i, id[i]), qctxt, 0);
304 if (lqs == NULL || IS_ERR(lqs))
308 CERROR("can not find lqs for check_common: "
309 "[id %u] [%c] [isblk %d] [count %d] [rc %ld]\n",
310 id[i], i % 2 ? 'g': 'u', isblk, count,
312 RETURN(PTR_ERR(lqs));
315 rc2[i] = compute_remquota(obd, qctxt, &qdata[i], isblk);
316 cfs_spin_lock(&lqs->lqs_lock);
319 pending[i] = count * CFS_PAGE_SIZE;
320 /* in order to complete this write, we need extra
321 * meta blocks. This function can get it through
322 * data needed to be written b=16542 */
325 rc = fsfilt_get_mblk(obd, qctxt->lqc_sb,
329 CERROR("%s: can't get extra "
335 LASSERTF(pending[i] >= 0, "pending is not valid"
336 ", count=%d, mb=%d\n", count, mb);
337 lqs->lqs_bwrite_pending += pending[i];
340 lqs->lqs_iwrite_pending += pending[i];
344 /* if xx_rec < 0, that means quota are releasing,
345 * and it may return before we use quota. So if
346 * we find this situation, we assuming it has
347 * returned b=18491 */
348 if (isblk && lqs->lqs_blk_rec < 0) {
349 if (qdata[i].qd_count < -lqs->lqs_blk_rec)
350 qdata[i].qd_count = 0;
352 qdata[i].qd_count += lqs->lqs_blk_rec;
354 if (!isblk && lqs->lqs_ino_rec < 0) {
355 if (qdata[i].qd_count < -lqs->lqs_ino_rec)
356 qdata[i].qd_count = 0;
358 qdata[i].qd_count += lqs->lqs_ino_rec;
361 CDEBUG(D_QUOTA, "[id %u] [%c] [isblk %d] [count %d]"
362 " [lqs pending: %lu] [qd_count: "LPU64"] [metablocks: %d]"
363 " [pending: %d]\n", id[i], i % 2 ? 'g': 'u', isblk, count,
364 isblk ? lqs->lqs_bwrite_pending : lqs->lqs_iwrite_pending,
365 qdata[i].qd_count, mb, pending[i]);
366 if (rc2[i] == QUOTA_RET_OK) {
367 if (isblk && qdata[i].qd_count < lqs->lqs_bwrite_pending)
368 rc2[i] = QUOTA_RET_ACQUOTA;
369 if (!isblk && qdata[i].qd_count <
370 lqs->lqs_iwrite_pending)
371 rc2[i] = QUOTA_RET_ACQUOTA;
374 cfs_spin_unlock(&lqs->lqs_lock);
376 if (lqs->lqs_blk_rec < 0 &&
378 lqs->lqs_bwrite_pending - lqs->lqs_blk_rec - mb)
379 OBD_FAIL_TIMEOUT(OBD_FAIL_QUOTA_DELAY_REL, 5);
381 /* When cycle is zero, lqs_*_pending will be changed. We will
382 * get reference of the lqs here and put reference of lqs in
383 * quota_pending_commit b=14784 */
387 /* this is for quota_search_lqs */
391 if (rc2[0] == QUOTA_RET_ACQUOTA || rc2[1] == QUOTA_RET_ACQUOTA)
392 RETURN(QUOTA_RET_ACQUOTA);
397 int quota_is_set(struct obd_device *obd, const unsigned int id[], int flag)
399 struct lustre_qunit_size *lqs;
402 if (!ll_sb_any_quota_active(obd->u.obt.obt_qctxt.lqc_sb))
405 for (i = 0; i < MAXQUOTAS; i++) {
406 /* check if quota is enabled */
407 if (!ll_sb_has_quota_active(obd->u.obt.obt_qctxt.lqc_sb, i))
409 lqs = quota_search_lqs(LQS_KEY(i, id[i]),
410 &obd->u.obt.obt_qctxt, 0);
411 if (lqs && !IS_ERR(lqs)) {
412 if (lqs->lqs_flags & flag)
421 static int quota_chk_acq_common(struct obd_device *obd, struct obd_export *exp,
422 const unsigned int id[], int pending[],
423 int count, quota_acquire acquire,
424 struct obd_trans_info *oti, int isblk,
425 struct inode *inode, int frags)
427 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
428 struct timeval work_start;
429 struct timeval work_end;
431 struct l_wait_info lwi = { 0 };
432 int rc = 0, cycle = 0, count_err = 1;
435 if (!quota_is_set(obd, id, isblk ? QB_SET : QI_SET))
438 if (isblk && (exp->exp_failed || exp->exp_abort_active_req))
439 /* If the client has been evicted or if it
440 * timed out and tried to reconnect already,
441 * abort the request immediately */
444 CDEBUG(D_QUOTA, "check quota for %s\n", obd->obd_name);
445 pending[USRQUOTA] = pending[GRPQUOTA] = 0;
446 /* Unfortunately, if quota master is too busy to handle the
447 * pre-dqacq in time and quota hash on ost is used up, we
448 * have to wait for the completion of in flight dqacq/dqrel,
449 * in order to get enough quota for write b=12588 */
450 cfs_gettimeofday(&work_start);
451 while ((rc = quota_check_common(obd, id, pending, count, cycle, isblk,
454 struct ptlrpc_thread *thr = oti != NULL ?
455 oti->oti_thread : NULL;
457 cfs_spin_lock(&qctxt->lqc_lock);
458 if (!qctxt->lqc_import && oti != NULL) {
459 cfs_spin_unlock(&qctxt->lqc_lock);
461 LASSERT(thr != NULL);
462 /* The recovery thread doesn't have watchdog
463 * attached. LU-369 */
464 if (thr->t_watchdog != NULL)
465 lc_watchdog_disable(thr->t_watchdog);
466 CDEBUG(D_QUOTA, "sleep for quota master\n");
467 l_wait_event(qctxt->lqc_wait_for_qmaster,
468 check_qm(qctxt), &lwi);
470 CDEBUG(D_QUOTA, "wake up when quota master is back\n");
471 if (thr->t_watchdog != NULL) {
472 lc_watchdog_touch(thr->t_watchdog,
473 ptlrpc_server_get_timeout(thr->t_svcpt));
476 cfs_spin_unlock(&qctxt->lqc_lock);
481 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_HOLD_WRITE_RPC, 90);
482 /* after acquire(), we should run quota_check_common again
483 * so that we confirm there are enough quota to finish write */
484 rc = acquire(obd, id, oti, isblk);
486 /* please reference to dqacq_completion for the below */
487 /* a new request is finished, try again */
488 if (rc == QUOTA_REQ_RETURNED) {
489 CDEBUG(D_QUOTA, "finish a quota req, try again\n");
493 /* it is out of quota already */
495 CDEBUG(D_QUOTA, "out of quota, return -EDQUOT\n");
499 /* Related quota has been disabled by master, but enabled by
500 * slave, do not try again. */
501 if (unlikely(rc == -ESRCH)) {
502 CERROR("mismatched quota configuration, stop try.\n");
506 if (isblk && (exp->exp_failed || exp->exp_abort_active_req))
507 /* The client has been evicted or tried to
508 * to reconnect already, abort the request */
511 /* -EBUSY and others, wait a second and try again */
514 struct l_wait_info lwi;
516 if (thr != NULL && thr->t_watchdog != NULL)
517 lc_watchdog_touch(thr->t_watchdog,
518 ptlrpc_server_get_timeout(thr->t_svcpt));
519 CDEBUG(D_QUOTA, "rc: %d, count_err: %d\n", rc,
522 cfs_waitq_init(&waitq);
523 lwi = LWI_TIMEOUT(cfs_time_seconds(min(cycle, 10)), NULL,
525 l_wait_event(waitq, 0, &lwi);
528 if (rc < 0 || cycle % 10 == 0) {
529 cfs_spin_lock(&last_print_lock);
530 if (last_print == 0 ||
531 cfs_time_before((last_print + cfs_time_seconds(30)),
532 cfs_time_current())) {
533 last_print = cfs_time_current();
534 cfs_spin_unlock(&last_print_lock);
535 CWARN("still haven't managed to acquire quota "
536 "space from the quota master after %d "
537 "retries (err=%d, rc=%d)\n",
538 cycle, count_err - 1, rc);
540 cfs_spin_unlock(&last_print_lock);
544 CDEBUG(D_QUOTA, "recheck quota with rc: %d, cycle: %d\n", rc,
547 cfs_gettimeofday(&work_end);
548 timediff = cfs_timeval_sub(&work_end, &work_start, NULL);
549 lprocfs_counter_add(qctxt->lqc_stats,
550 isblk ? LQUOTA_WAIT_FOR_CHK_BLK :
551 LQUOTA_WAIT_FOR_CHK_INO,
560 * when a block_write or inode_create rpc is finished, adjust the record for
561 * pending blocks and inodes
563 static int quota_pending_commit(struct obd_device *obd, const unsigned int id[],
564 int pending[], int isblk)
566 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
567 struct timeval work_start;
568 struct timeval work_end;
571 struct qunit_data qdata[MAXQUOTAS];
574 CDEBUG(D_QUOTA, "commit pending quota for %s\n", obd->obd_name);
575 CLASSERT(MAXQUOTAS < 4);
576 if (!ll_sb_any_quota_active(qctxt->lqc_sb))
579 cfs_gettimeofday(&work_start);
580 for (i = 0; i < MAXQUOTAS; i++) {
581 struct lustre_qunit_size *lqs = NULL;
583 LASSERT(pending[i] >= 0);
587 qdata[i].qd_id = id[i];
588 qdata[i].qd_flags = i;
590 QDATA_SET_BLK(&qdata[i]);
591 qdata[i].qd_count = 0;
593 if (qdata[i].qd_id == 0 && !QDATA_IS_GRP(&qdata[i]))
596 lqs = quota_search_lqs(LQS_KEY(i, qdata[i].qd_id), qctxt, 0);
597 if (lqs == NULL || IS_ERR(lqs)) {
598 CERROR("can not find lqs for pending_commit: "
599 "[id %u] [%c] [pending %u] [isblk %d] (rc %ld), "
600 "maybe cause unexpected lqs refcount error!\n",
601 id[i], i ? 'g': 'u', pending[i], isblk,
602 lqs ? PTR_ERR(lqs) : -1);
606 cfs_spin_lock(&lqs->lqs_lock);
608 LASSERTF(lqs->lqs_bwrite_pending >= pending[i],
609 "there are too many blocks! [id %u] [%c] "
610 "[bwrite_pending %lu] [pending %u]\n",
611 id[i], i % 2 ? 'g' : 'u',
612 lqs->lqs_bwrite_pending, pending[i]);
614 lqs->lqs_bwrite_pending -= pending[i];
616 LASSERTF(lqs->lqs_iwrite_pending >= pending[i],
617 "there are too many files! [id %u] [%c] "
618 "[iwrite_pending %lu] [pending %u]\n",
619 id[i], i % 2 ? 'g' : 'u',
620 lqs->lqs_iwrite_pending, pending[i]);
622 lqs->lqs_iwrite_pending -= pending[i];
624 CDEBUG(D_QUOTA, "%s: lqs_pending=%lu pending[%d]=%d isblk=%d\n",
626 isblk ? lqs->lqs_bwrite_pending : lqs->lqs_iwrite_pending,
627 i, pending[i], isblk);
628 cfs_spin_unlock(&lqs->lqs_lock);
630 /* for quota_search_lqs in pending_commit */
632 /* for quota_search_lqs in quota_check */
635 cfs_gettimeofday(&work_end);
636 timediff = cfs_timeval_sub(&work_end, &work_start, NULL);
637 lprocfs_counter_add(qctxt->lqc_stats,
638 isblk ? LQUOTA_WAIT_FOR_COMMIT_BLK :
639 LQUOTA_WAIT_FOR_COMMIT_INO,
645 static int mds_quota_init(void)
647 return lustre_dquot_init();
650 static int mds_quota_exit(void)
656 static int mds_quota_setup(struct obd_device *obd)
658 struct obd_device_target *obt = &obd->u.obt;
659 struct mds_obd *mds = &obd->u.mds;
663 if (unlikely(mds->mds_quota)) {
664 CWARN("try to reinitialize quota context!\n");
668 cfs_init_rwsem(&obt->obt_rwsem);
669 obt->obt_qfmt = LUSTRE_QUOTA_V2;
670 mds->mds_quota_info.qi_version = LUSTRE_QUOTA_V2;
671 cfs_sema_init(&obt->obt_quotachecking, 1);
672 /* initialize quota master and quota context */
673 cfs_init_rwsem(&mds->mds_qonoff_sem);
674 rc = qctxt_init(obd, dqacq_handler);
676 CERROR("%s: initialize quota context failed! (rc:%d)\n",
684 static int mds_quota_cleanup(struct obd_device *obd)
687 if (unlikely(!obd->u.mds.mds_quota))
690 qctxt_cleanup(&obd->u.obt.obt_qctxt, 0);
694 static int mds_quota_setinfo(struct obd_device *obd, void *data)
696 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
699 if (unlikely(!obd->u.mds.mds_quota))
703 QUOTA_MASTER_READY(qctxt);
705 QUOTA_MASTER_UNREADY(qctxt);
709 static int mds_quota_fs_cleanup(struct obd_device *obd)
711 struct mds_obd *mds = &obd->u.mds;
712 struct obd_quotactl oqctl;
715 if (unlikely(!mds->mds_quota))
719 memset(&oqctl, 0, sizeof(oqctl));
720 oqctl.qc_type = UGQUOTA;
722 cfs_down_write(&mds->mds_qonoff_sem);
723 mds_admin_quota_off(obd, &oqctl);
724 cfs_up_write(&mds->mds_qonoff_sem);
728 static int quota_acquire_common(struct obd_device *obd, const unsigned int id[],
729 struct obd_trans_info *oti, int isblk)
731 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
735 rc = qctxt_adjust_qunit(obd, qctxt, id, isblk, 1, oti);
739 quota_interface_t mds_quota_interface = {
740 .quota_init = mds_quota_init,
741 .quota_exit = mds_quota_exit,
742 .quota_setup = mds_quota_setup,
743 .quota_cleanup = mds_quota_cleanup,
744 .quota_check = target_quota_check,
745 .quota_ctl = mds_quota_ctl,
746 .quota_setinfo = mds_quota_setinfo,
747 .quota_fs_cleanup = mds_quota_fs_cleanup,
748 .quota_recovery = mds_quota_recovery,
749 .quota_adjust = mds_quota_adjust,
750 .quota_chkquota = quota_chk_acq_common,
751 .quota_acquire = quota_acquire_common,
752 .quota_pending_commit = quota_pending_commit,
755 quota_interface_t filter_quota_interface = {
756 .quota_setup = filter_quota_setup,
757 .quota_cleanup = filter_quota_cleanup,
758 .quota_check = target_quota_check,
759 .quota_ctl = filter_quota_ctl,
760 .quota_setinfo = filter_quota_setinfo,
761 .quota_clearinfo = filter_quota_clearinfo,
762 .quota_enforce = filter_quota_enforce,
763 .quota_getflag = filter_quota_getflag,
764 .quota_acquire = quota_acquire_common,
765 .quota_adjust = filter_quota_adjust,
766 .quota_chkquota = quota_chk_acq_common,
767 .quota_adjust_qunit = filter_quota_adjust_qunit,
768 .quota_pending_commit = quota_pending_commit,
771 cfs_proc_dir_entry_t *lquota_type_proc_dir = NULL;
773 static int __init init_lustre_quota(void)
777 lquota_type_proc_dir = lprocfs_register(OBD_LQUOTA_DEVICENAME,
780 if (IS_ERR(lquota_type_proc_dir)) {
781 CERROR("LProcFS failed in lquota-init\n");
782 rc = PTR_ERR(lquota_type_proc_dir);
786 rc = qunit_cache_init();
790 PORTAL_SYMBOL_REGISTER(filter_quota_interface);
791 PORTAL_SYMBOL_REGISTER(mds_quota_interface);
796 static void /*__exit*/ exit_lustre_quota(void)
798 PORTAL_SYMBOL_UNREGISTER(filter_quota_interface);
799 PORTAL_SYMBOL_UNREGISTER(mds_quota_interface);
801 qunit_cache_cleanup();
803 if (lquota_type_proc_dir)
804 lprocfs_remove(&lquota_type_proc_dir);
807 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
808 MODULE_DESCRIPTION("Lustre Quota");
809 MODULE_LICENSE("GPL");
811 cfs_module(lquota, "1.0.0", init_lustre_quota, exit_lustre_quota);
813 EXPORT_SYMBOL(mds_quota_interface);
814 EXPORT_SYMBOL(filter_quota_interface);
815 #endif /* __KERNEL */