1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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.
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).
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
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
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
38 # define EXPORT_SYMTAB
40 #define DEBUG_SUBSYSTEM S_LQUOTA
43 # include <linux/version.h>
44 # include <linux/module.h>
45 # include <linux/init.h>
46 # include <linux/fs.h>
47 # include <linux/jbd.h>
48 # include <linux/smp_lock.h>
49 # include <linux/buffer_head.h>
50 # include <linux/workqueue.h>
51 # include <linux/mount.h>
52 #else /* __KERNEL__ */
53 # include <liblustre.h>
56 #include <obd_class.h>
57 #include <lustre_mds.h>
58 #include <lustre_dlm.h>
59 #include <lustre_cfg.h>
61 #include <lustre_fsfilt.h>
62 #include <lustre_quota.h>
63 #include <lprocfs_status.h>
64 #include "quota_internal.h"
68 #ifdef HAVE_QUOTA_SUPPORT
70 static cfs_time_t last_print = 0;
71 static spinlock_t last_print_lock = SPIN_LOCK_UNLOCKED;
73 static int filter_quota_setup(struct obd_device *obd)
76 struct obd_device_target *obt = &obd->u.obt;
79 init_rwsem(&obt->obt_rwsem);
80 obt->obt_qfmt = LUSTRE_QUOTA_V2;
81 atomic_set(&obt->obt_quotachecking, 1);
82 rc = qctxt_init(obd, NULL);
84 CERROR("initialize quota context failed! (rc:%d)\n", rc);
89 static int filter_quota_cleanup(struct obd_device *obd)
92 qctxt_cleanup(&obd->u.obt.obt_qctxt, 0);
96 static int filter_quota_setinfo(struct obd_device *obd, void *data)
98 struct obd_export *exp = data;
99 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
100 struct obd_import *imp;
103 /* setup the quota context import */
104 spin_lock(&qctxt->lqc_lock);
105 qctxt->lqc_import = exp->exp_imp_reverse;
106 spin_unlock(&qctxt->lqc_lock);
107 CDEBUG(D_QUOTA, "%s: lqc_import(%p) of obd(%p) is reactivated now, \n",
108 obd->obd_name,exp->exp_imp_reverse, obd);
110 /* make imp's connect flags equal relative exp's connect flags
111 * adding it to avoid the scan export list
113 imp = qctxt->lqc_import;
115 imp->imp_connect_data.ocd_connect_flags |=
116 (exp->exp_connect_flags &
117 (OBD_CONNECT_QUOTA64 | OBD_CONNECT_CHANGE_QS));
119 cfs_waitq_signal(&qctxt->lqc_wait_for_qmaster);
120 /* start quota slave recovery thread. (release high limits) */
121 qslave_start_recovery(obd, qctxt);
125 static int filter_quota_clearinfo(struct obd_export *exp, struct obd_device *obd)
127 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
130 /* lquota may be not set up before destroying export, b=14896 */
131 if (!obd->obd_set_up)
134 /* when exp->exp_imp_reverse is destroyed, the corresponding lqc_import
135 * should be invalid b=12374 */
136 if (qctxt->lqc_import && qctxt->lqc_import == exp->exp_imp_reverse) {
137 spin_lock(&qctxt->lqc_lock);
138 qctxt->lqc_import = NULL;
139 spin_unlock(&qctxt->lqc_lock);
140 CDEBUG(D_QUOTA, "%s: lqc_import of obd(%p) is invalid now.\n",
146 static int filter_quota_enforce(struct obd_device *obd, unsigned int ignore)
150 if (!sb_any_quota_enabled(obd->u.obt.obt_sb))
154 CDEBUG(D_QUOTA, "blocks will be written with ignoring quota.\n");
155 cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
157 cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
163 static int filter_quota_getflag(struct obd_device *obd, struct obdo *oa)
165 struct obd_device_target *obt = &obd->u.obt;
166 struct lustre_quota_ctxt *qctxt = &obt->obt_qctxt;
167 int err, cnt, rc = 0;
168 struct obd_quotactl *oqctl;
171 if (!sb_any_quota_enabled(obt->obt_sb))
174 OBD_ALLOC_PTR(oqctl);
176 CERROR("Not enough memory!");
180 /* set over quota flags for a uid/gid */
181 oa->o_valid |= OBD_MD_FLUSRQUOTA | OBD_MD_FLGRPQUOTA;
182 oa->o_flags &= ~(OBD_FL_NO_USRQUOTA | OBD_FL_NO_GRPQUOTA);
184 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
185 struct quota_adjust_qunit oqaq_tmp;
186 struct lustre_qunit_size *lqs = NULL;
188 oqaq_tmp.qaq_flags = cnt;
189 oqaq_tmp.qaq_id = (cnt == USRQUOTA) ? oa->o_uid : oa->o_gid;
191 quota_search_lqs(NULL, &oqaq_tmp, qctxt, &lqs);
193 spin_lock(&lqs->lqs_lock);
194 if (lqs->lqs_bunit_sz <= qctxt->lqc_sync_blk) {
195 oa->o_flags |= (cnt == USRQUOTA) ?
196 OBD_FL_NO_USRQUOTA : OBD_FL_NO_GRPQUOTA;
197 spin_unlock(&lqs->lqs_lock);
198 CDEBUG(D_QUOTA, "set sync flag: bunit(%lu), "
199 "sync_blk(%d)\n", lqs->lqs_bunit_sz,
200 qctxt->lqc_sync_blk);
201 /* this is for quota_search_lqs */
205 spin_unlock(&lqs->lqs_lock);
206 /* this is for quota_search_lqs */
210 memset(oqctl, 0, sizeof(*oqctl));
212 oqctl->qc_cmd = Q_GETQUOTA;
213 oqctl->qc_type = cnt;
214 oqctl->qc_id = (cnt == USRQUOTA) ? oa->o_uid : oa->o_gid;
215 err = fsfilt_quotactl(obd, obt->obt_sb, oqctl);
219 oa->o_valid &= ~((cnt == USRQUOTA) ? OBD_MD_FLUSRQUOTA :
224 if (oqctl->qc_dqblk.dqb_bhardlimit &&
225 (toqb(oqctl->qc_dqblk.dqb_curspace) >=
226 oqctl->qc_dqblk.dqb_bhardlimit))
227 oa->o_flags |= (cnt == USRQUOTA) ?
228 OBD_FL_NO_USRQUOTA : OBD_FL_NO_GRPQUOTA;
235 * check whether the left quota of certain uid and gid can satisfy a block_write
236 * or inode_create rpc. When need to acquire quota, return QUOTA_RET_ACQUOTA
238 static int quota_check_common(struct obd_device *obd, unsigned int uid,
239 unsigned int gid, int count, int cycle, int isblk,
240 struct inode *inode, int frags, int *pending)
242 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
244 __u32 id[MAXQUOTAS] = { uid, gid };
245 struct qunit_data qdata[MAXQUOTAS];
247 int rc = 0, rc2[2] = { 0, 0 };
250 CLASSERT(MAXQUOTAS < 4);
251 if (!sb_any_quota_enabled(qctxt->lqc_sb))
254 spin_lock(&qctxt->lqc_lock);
255 if (!qctxt->lqc_valid){
256 spin_unlock(&qctxt->lqc_lock);
259 spin_unlock(&qctxt->lqc_lock);
261 for (i = 0; i < MAXQUOTAS; i++) {
262 struct lustre_qunit_size *lqs = NULL;
264 qdata[i].qd_id = id[i];
265 qdata[i].qd_flags = i;
267 QDATA_SET_BLK(&qdata[i]);
268 qdata[i].qd_count = 0;
270 /* ignore root user */
271 if (qdata[i].qd_id == 0 && !QDATA_IS_GRP(&qdata[i]))
274 quota_search_lqs(&qdata[i], NULL, qctxt, &lqs);
278 rc2[i] = compute_remquota(obd, qctxt, &qdata[i], isblk);
279 spin_lock(&lqs->lqs_lock);
282 *pending = count * CFS_PAGE_SIZE;
283 /* in order to complete this write, we need extra
284 * meta blocks. This function can get it through
285 * data needed to be written b=16542 */
288 rc = fsfilt_get_mblk(obd, qctxt->lqc_sb,
297 lqs->lqs_bwrite_pending += *pending;
300 lqs->lqs_iwrite_pending += *pending;
303 if (rc2[i] == QUOTA_RET_OK) {
304 if (isblk && qdata[i].qd_count < lqs->lqs_bwrite_pending)
305 rc2[i] = QUOTA_RET_ACQUOTA;
306 if (!isblk && qdata[i].qd_count <
307 lqs->lqs_iwrite_pending)
308 rc2[i] = QUOTA_RET_ACQUOTA;
310 spin_unlock(&lqs->lqs_lock);
311 CDEBUG(D_QUOTA, "count: %d, lqs pending: %lu, qd_count: "LPU64
312 ", metablocks: %d, isblk: %d, pending: %d.\n", count,
313 isblk ? lqs->lqs_bwrite_pending : lqs->lqs_iwrite_pending,
314 qdata[i].qd_count, mb, isblk, *pending);
316 /* When cycle is zero, lqs_*_pending will be changed. We will
317 * get reference of the lqs here and put reference of lqs in
318 * quota_pending_commit b=14784 */
322 /* this is for quota_search_lqs */
326 if (rc2[0] == QUOTA_RET_ACQUOTA || rc2[1] == QUOTA_RET_ACQUOTA)
327 RETURN(QUOTA_RET_ACQUOTA);
332 static int quota_chk_acq_common(struct obd_device *obd, unsigned int uid,
333 unsigned int gid, int count, int *pending,
334 quota_acquire acquire,
335 struct obd_trans_info *oti, int isblk,
336 struct inode *inode, int frags)
338 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
339 struct timeval work_start;
340 struct timeval work_end;
342 struct l_wait_info lwi = { 0 };
343 int rc = 0, cycle = 0, count_err = 1;
346 CDEBUG(D_QUOTA, "check quota for %s\n", obd->obd_name);
348 /* Unfortunately, if quota master is too busy to handle the
349 * pre-dqacq in time and quota hash on ost is used up, we
350 * have to wait for the completion of in flight dqacq/dqrel,
351 * in order to get enough quota for write b=12588 */
352 do_gettimeofday(&work_start);
353 while ((rc = quota_check_common(obd, uid, gid, count, cycle, isblk,
354 inode, frags, pending)) &
357 spin_lock(&qctxt->lqc_lock);
358 if (!qctxt->lqc_import && oti) {
359 spin_unlock(&qctxt->lqc_lock);
361 LASSERT(oti && oti->oti_thread &&
362 oti->oti_thread->t_watchdog);
364 lc_watchdog_disable(oti->oti_thread->t_watchdog);
365 CDEBUG(D_QUOTA, "sleep for quota master\n");
366 l_wait_event(qctxt->lqc_wait_for_qmaster, check_qm(qctxt),
368 CDEBUG(D_QUOTA, "wake up when quota master is back\n");
369 lc_watchdog_touch(oti->oti_thread->t_watchdog);
371 spin_unlock(&qctxt->lqc_lock);
376 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_HOLD_WRITE_RPC, 90);
377 /* after acquire(), we should run quota_check_common again
378 * so that we confirm there are enough quota to finish write */
379 rc = acquire(obd, uid, gid, oti, isblk);
381 /* please reference to dqacq_completion for the below */
382 /* a new request is finished, try again */
384 CDEBUG(D_QUOTA, "finish a quota req, try again\n");
388 /* it is out of quota already */
390 CDEBUG(D_QUOTA, "out of quota, return -EDQUOT\n");
394 /* -EBUSY and others, wait a second and try again */
397 struct l_wait_info lwi;
399 if (oti && oti->oti_thread && oti->oti_thread->t_watchdog)
400 lc_watchdog_touch(oti->oti_thread->t_watchdog);
401 CDEBUG(D_QUOTA, "rc: %d, count_err: %d\n", rc,
404 init_waitqueue_head(&waitq);
405 lwi = LWI_TIMEOUT(cfs_time_seconds(min(cycle, 10)), NULL,
407 l_wait_event(waitq, 0, &lwi);
410 if (rc < 0 || cycle % 10 == 2) {
411 spin_lock(&last_print_lock);
412 if (last_print == 0 ||
413 cfs_time_before((last_print + cfs_time_seconds(30)),
414 cfs_time_current())) {
415 last_print = cfs_time_current();
416 spin_unlock(&last_print_lock);
417 CWARN("still haven't managed to acquire quota "
418 "space from the quota master after %d "
419 "retries (err=%d, rc=%d)\n",
420 cycle, count_err - 1, rc);
422 spin_unlock(&last_print_lock);
426 CDEBUG(D_QUOTA, "recheck quota with rc: %d, cycle: %d\n", rc,
429 do_gettimeofday(&work_end);
430 timediff = cfs_timeval_sub(&work_end, &work_start, NULL);
431 lprocfs_counter_add(qctxt->lqc_stats,
432 isblk ? LQUOTA_WAIT_FOR_CHK_BLK :
433 LQUOTA_WAIT_FOR_CHK_INO,
440 * when a block_write or inode_create rpc is finished, adjust the record for
441 * pending blocks and inodes
443 static int quota_pending_commit(struct obd_device *obd, unsigned int uid,
444 unsigned int gid, int pending, int isblk)
446 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
447 struct timeval work_start;
448 struct timeval work_end;
451 __u32 id[MAXQUOTAS] = { uid, gid };
452 struct qunit_data qdata[MAXQUOTAS];
455 CDEBUG(D_QUOTA, "commit pending quota for %s\n", obd->obd_name);
456 CLASSERT(MAXQUOTAS < 4);
457 if (!sb_any_quota_enabled(qctxt->lqc_sb))
460 do_gettimeofday(&work_start);
461 for (i = 0; i < MAXQUOTAS; i++) {
462 struct lustre_qunit_size *lqs = NULL;
464 qdata[i].qd_id = id[i];
465 qdata[i].qd_flags = i;
467 QDATA_SET_BLK(&qdata[i]);
468 qdata[i].qd_count = 0;
470 if (qdata[i].qd_id == 0 && !QDATA_IS_GRP(&qdata[i]))
473 quota_search_lqs(&qdata[i], NULL, qctxt, &lqs);
476 spin_lock(&lqs->lqs_lock);
478 if (lqs->lqs_bwrite_pending >= pending) {
479 lqs->lqs_bwrite_pending -= pending;
480 spin_unlock(&lqs->lqs_lock);
483 spin_unlock(&lqs->lqs_lock);
485 "there are too many blocks!\n");
488 if (lqs->lqs_iwrite_pending >= pending) {
489 lqs->lqs_iwrite_pending -= pending;
490 spin_unlock(&lqs->lqs_lock);
493 spin_unlock(&lqs->lqs_lock);
495 "there are too many files!\n");
498 CDEBUG(D_QUOTA, "lqs pending: %lu, pending: %d, "
500 isblk ? lqs->lqs_bwrite_pending :
501 lqs->lqs_iwrite_pending, pending, isblk);
504 /* When lqs_*_pening is changed back, we'll putref lqs
510 do_gettimeofday(&work_end);
511 timediff = cfs_timeval_sub(&work_end, &work_start, NULL);
512 lprocfs_counter_add(qctxt->lqc_stats,
513 isblk ? LQUOTA_WAIT_FOR_COMMIT_BLK :
514 LQUOTA_WAIT_FOR_COMMIT_INO,
520 static int mds_quota_init(void)
522 return lustre_dquot_init();
525 static int mds_quota_exit(void)
531 static int mds_quota_setup(struct obd_device *obd)
533 struct obd_device_target *obt = &obd->u.obt;
534 struct mds_obd *mds = &obd->u.mds;
538 if (unlikely(mds->mds_quota)) {
539 CWARN("try to reinitialize quota context!\n");
543 init_rwsem(&obt->obt_rwsem);
544 obt->obt_qfmt = LUSTRE_QUOTA_V2;
545 mds->mds_quota_info.qi_version = LUSTRE_QUOTA_V2;
546 atomic_set(&obt->obt_quotachecking, 1);
547 /* initialize quota master and quota context */
548 sema_init(&mds->mds_qonoff_sem, 1);
549 rc = qctxt_init(obd, dqacq_handler);
551 CERROR("initialize quota context failed! (rc:%d)\n", rc);
558 static int mds_quota_cleanup(struct obd_device *obd)
561 if (unlikely(!obd->u.mds.mds_quota))
564 qctxt_cleanup(&obd->u.obt.obt_qctxt, 0);
568 static int mds_quota_setinfo(struct obd_device *obd, void *data)
570 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
573 if (unlikely(!obd->u.mds.mds_quota))
577 QUOTA_MASTER_READY(qctxt);
579 QUOTA_MASTER_UNREADY(qctxt);
583 static int mds_quota_fs_cleanup(struct obd_device *obd)
585 struct mds_obd *mds = &obd->u.mds;
586 struct obd_quotactl oqctl;
589 if (unlikely(!mds->mds_quota))
593 memset(&oqctl, 0, sizeof(oqctl));
594 oqctl.qc_type = UGQUOTA;
596 down(&mds->mds_qonoff_sem);
597 mds_admin_quota_off(obd, &oqctl);
598 up(&mds->mds_qonoff_sem);
602 static int quota_acquire_common(struct obd_device *obd, unsigned int uid,
603 unsigned int gid, struct obd_trans_info *oti,
606 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
610 rc = qctxt_adjust_qunit(obd, qctxt, uid, gid, isblk, 1, oti);
614 #endif /* HAVE_QUOTA_SUPPORT */
615 #endif /* __KERNEL__ */
617 struct osc_quota_info {
618 struct list_head oqi_hash; /* hash list */
619 struct client_obd *oqi_cli; /* osc obd */
620 unsigned int oqi_id; /* uid/gid of a file */
621 short oqi_type; /* quota type */
624 spinlock_t qinfo_list_lock = SPIN_LOCK_UNLOCKED;
626 static struct list_head qinfo_hash[NR_DQHASH];
627 /* SLAB cache for client quota context */
628 cfs_mem_cache_t *qinfo_cachep = NULL;
630 static inline int hashfn(struct client_obd *cli, unsigned long id, int type)
631 __attribute__((__const__));
633 static inline int hashfn(struct client_obd *cli, unsigned long id, int type)
635 unsigned long tmp = ((unsigned long)cli>>6) ^ id;
636 tmp = (tmp * (MAXQUOTAS - type)) % NR_DQHASH;
640 /* caller must hold qinfo_list_lock */
641 static inline void insert_qinfo_hash(struct osc_quota_info *oqi)
643 struct list_head *head = qinfo_hash +
644 hashfn(oqi->oqi_cli, oqi->oqi_id, oqi->oqi_type);
646 LASSERT_SPIN_LOCKED(&qinfo_list_lock);
647 list_add(&oqi->oqi_hash, head);
650 /* caller must hold qinfo_list_lock */
651 static inline void remove_qinfo_hash(struct osc_quota_info *oqi)
653 LASSERT_SPIN_LOCKED(&qinfo_list_lock);
654 list_del_init(&oqi->oqi_hash);
657 /* caller must hold qinfo_list_lock */
658 static inline struct osc_quota_info *find_qinfo(struct client_obd *cli,
659 unsigned int id, int type)
661 unsigned int hashent = hashfn(cli, id, type);
662 struct osc_quota_info *oqi;
665 LASSERT_SPIN_LOCKED(&qinfo_list_lock);
666 list_for_each_entry(oqi, &qinfo_hash[hashent], oqi_hash) {
667 if (oqi->oqi_cli == cli &&
668 oqi->oqi_id == id && oqi->oqi_type == type)
674 static struct osc_quota_info *alloc_qinfo(struct client_obd *cli,
675 unsigned int id, int type)
677 struct osc_quota_info *oqi;
680 OBD_SLAB_ALLOC(oqi, qinfo_cachep, CFS_ALLOC_STD, sizeof(*oqi));
684 CFS_INIT_LIST_HEAD(&oqi->oqi_hash);
687 oqi->oqi_type = type;
692 static void free_qinfo(struct osc_quota_info *oqi)
694 OBD_SLAB_FREE(oqi, qinfo_cachep, sizeof(*oqi));
697 int osc_quota_chkdq(struct client_obd *cli, unsigned int uid, unsigned int gid)
700 int cnt, rc = QUOTA_OK;
703 spin_lock(&qinfo_list_lock);
704 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
705 struct osc_quota_info *oqi = NULL;
707 id = (cnt == USRQUOTA) ? uid : gid;
708 oqi = find_qinfo(cli, id, cnt);
714 spin_unlock(&qinfo_list_lock);
719 int osc_quota_setdq(struct client_obd *cli, unsigned int uid, unsigned int gid,
720 obd_flag valid, obd_flag flags)
728 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
729 struct osc_quota_info *oqi, *old;
731 if (!(valid & ((cnt == USRQUOTA) ?
732 OBD_MD_FLUSRQUOTA : OBD_MD_FLGRPQUOTA)))
735 id = (cnt == USRQUOTA) ? uid : gid;
736 noquota = (cnt == USRQUOTA) ?
737 (flags & OBD_FL_NO_USRQUOTA) : (flags & OBD_FL_NO_GRPQUOTA);
739 oqi = alloc_qinfo(cli, id, cnt);
741 spin_lock(&qinfo_list_lock);
743 old = find_qinfo(cli, id, cnt);
745 remove_qinfo_hash(old);
746 else if (!old && noquota)
747 insert_qinfo_hash(oqi);
749 spin_unlock(&qinfo_list_lock);
756 CERROR("not enough mem!\n");
765 int osc_quota_cleanup(struct obd_device *obd)
767 struct client_obd *cli = &obd->u.cli;
768 struct osc_quota_info *oqi, *n;
772 spin_lock(&qinfo_list_lock);
773 for (i = 0; i < NR_DQHASH; i++) {
774 list_for_each_entry_safe(oqi, n, &qinfo_hash[i], oqi_hash) {
775 if (oqi->oqi_cli != cli)
777 remove_qinfo_hash(oqi);
781 spin_unlock(&qinfo_list_lock);
786 int osc_quota_init(void)
791 LASSERT(qinfo_cachep == NULL);
792 qinfo_cachep = cfs_mem_cache_create("osc_quota_info",
793 sizeof(struct osc_quota_info),
798 for (i = 0; i < NR_DQHASH; i++)
799 CFS_INIT_LIST_HEAD(qinfo_hash + i);
804 int osc_quota_exit(void)
806 struct osc_quota_info *oqi, *n;
810 spin_lock(&qinfo_list_lock);
811 for (i = 0; i < NR_DQHASH; i++) {
812 list_for_each_entry_safe(oqi, n, &qinfo_hash[i], oqi_hash) {
813 remove_qinfo_hash(oqi);
817 spin_unlock(&qinfo_list_lock);
819 rc = cfs_mem_cache_destroy(qinfo_cachep);
820 LASSERTF(rc == 0, "couldn't destory qinfo_cachep slab\n");
827 #ifdef HAVE_QUOTA_SUPPORT
828 quota_interface_t mds_quota_interface = {
829 .quota_init = mds_quota_init,
830 .quota_exit = mds_quota_exit,
831 .quota_setup = mds_quota_setup,
832 .quota_cleanup = mds_quota_cleanup,
833 .quota_check = target_quota_check,
834 .quota_ctl = mds_quota_ctl,
835 .quota_setinfo = mds_quota_setinfo,
836 .quota_fs_cleanup = mds_quota_fs_cleanup,
837 .quota_recovery = mds_quota_recovery,
838 .quota_adjust = mds_quota_adjust,
839 .quota_chkquota = quota_chk_acq_common,
840 .quota_acquire = quota_acquire_common,
841 .quota_pending_commit = quota_pending_commit,
844 quota_interface_t filter_quota_interface = {
845 .quota_setup = filter_quota_setup,
846 .quota_cleanup = filter_quota_cleanup,
847 .quota_check = target_quota_check,
848 .quota_ctl = filter_quota_ctl,
849 .quota_setinfo = filter_quota_setinfo,
850 .quota_clearinfo = filter_quota_clearinfo,
851 .quota_enforce = filter_quota_enforce,
852 .quota_getflag = filter_quota_getflag,
853 .quota_acquire = quota_acquire_common,
854 .quota_adjust = filter_quota_adjust,
855 .quota_chkquota = quota_chk_acq_common,
856 .quota_adjust_qunit = filter_quota_adjust_qunit,
857 .quota_pending_commit = quota_pending_commit,
860 #endif /* __KERNEL__ */
862 quota_interface_t mdc_quota_interface = {
863 .quota_ctl = client_quota_ctl,
864 .quota_check = client_quota_check,
865 .quota_poll_check = client_quota_poll_check,
868 quota_interface_t lmv_quota_interface = {
869 .quota_ctl = lmv_quota_ctl,
870 .quota_check = lmv_quota_check,
873 quota_interface_t osc_quota_interface = {
874 .quota_ctl = client_quota_ctl,
875 .quota_check = client_quota_check,
876 .quota_poll_check = client_quota_poll_check,
877 .quota_init = osc_quota_init,
878 .quota_exit = osc_quota_exit,
879 .quota_chkdq = osc_quota_chkdq,
880 .quota_setdq = osc_quota_setdq,
881 .quota_cleanup = osc_quota_cleanup,
882 .quota_adjust_qunit = client_quota_adjust_qunit,
885 quota_interface_t lov_quota_interface = {
886 .quota_ctl = lov_quota_ctl,
887 .quota_check = lov_quota_check,
888 .quota_adjust_qunit = lov_quota_adjust_qunit,
893 cfs_proc_dir_entry_t *lquota_type_proc_dir = NULL;
895 static int __init init_lustre_quota(void)
897 #ifdef HAVE_QUOTA_SUPPORT
900 lquota_type_proc_dir = lprocfs_register(OBD_LQUOTA_DEVICENAME,
903 if (IS_ERR(lquota_type_proc_dir)) {
904 CERROR("LProcFS failed in lquota-init\n");
905 rc = PTR_ERR(lquota_type_proc_dir);
909 rc = qunit_cache_init();
913 PORTAL_SYMBOL_REGISTER(filter_quota_interface);
914 PORTAL_SYMBOL_REGISTER(mds_quota_interface);
916 PORTAL_SYMBOL_REGISTER(mdc_quota_interface);
917 PORTAL_SYMBOL_REGISTER(lmv_quota_interface);
918 PORTAL_SYMBOL_REGISTER(osc_quota_interface);
919 PORTAL_SYMBOL_REGISTER(lov_quota_interface);
923 static void /*__exit*/ exit_lustre_quota(void)
925 PORTAL_SYMBOL_UNREGISTER(mdc_quota_interface);
926 PORTAL_SYMBOL_UNREGISTER(lmv_quota_interface);
927 PORTAL_SYMBOL_UNREGISTER(osc_quota_interface);
928 PORTAL_SYMBOL_UNREGISTER(lov_quota_interface);
929 #ifdef HAVE_QUOTA_SUPPORT
930 PORTAL_SYMBOL_UNREGISTER(filter_quota_interface);
931 PORTAL_SYMBOL_UNREGISTER(mds_quota_interface);
933 qunit_cache_cleanup();
935 if (lquota_type_proc_dir)
936 lprocfs_remove(&lquota_type_proc_dir);
940 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
941 MODULE_DESCRIPTION("Lustre Quota");
942 MODULE_LICENSE("GPL");
944 cfs_module(lquota, "1.0.0", init_lustre_quota, exit_lustre_quota);
946 #ifdef HAVE_QUOTA_SUPPORT
947 EXPORT_SYMBOL(mds_quota_interface);
948 EXPORT_SYMBOL(filter_quota_interface);
950 EXPORT_SYMBOL(mdc_quota_interface);
951 EXPORT_SYMBOL(lmv_quota_interface);
952 EXPORT_SYMBOL(osc_quota_interface);
953 EXPORT_SYMBOL(lov_quota_interface);
954 #endif /* __KERNEL */