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 ptlrpc_cleanup_imp(exp->exp_imp_reverse);
141 dqacq_interrupt(qctxt);
142 CDEBUG(D_QUOTA, "%s: lqc_import of obd(%p) is invalid now.\n",
148 static int filter_quota_enforce(struct obd_device *obd, unsigned int ignore)
152 if (!sb_any_quota_enabled(obd->u.obt.obt_sb))
156 CDEBUG(D_QUOTA, "blocks will be written with ignoring quota.\n");
157 cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
159 cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
165 static int filter_quota_getflag(struct obd_device *obd, struct obdo *oa)
167 struct obd_device_target *obt = &obd->u.obt;
168 struct lustre_quota_ctxt *qctxt = &obt->obt_qctxt;
169 int err, cnt, rc = 0;
170 struct obd_quotactl *oqctl;
173 if (!sb_any_quota_enabled(obt->obt_sb))
176 OBD_ALLOC_PTR(oqctl);
178 CERROR("Not enough memory!");
182 /* set over quota flags for a uid/gid */
183 oa->o_valid |= OBD_MD_FLUSRQUOTA | OBD_MD_FLGRPQUOTA;
184 oa->o_flags &= ~(OBD_FL_NO_USRQUOTA | OBD_FL_NO_GRPQUOTA);
186 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
187 struct quota_adjust_qunit oqaq_tmp;
188 struct lustre_qunit_size *lqs = NULL;
190 oqaq_tmp.qaq_flags = cnt;
191 oqaq_tmp.qaq_id = (cnt == USRQUOTA) ? oa->o_uid : oa->o_gid;
193 quota_search_lqs(NULL, &oqaq_tmp, qctxt, &lqs);
195 spin_lock(&lqs->lqs_lock);
196 if (lqs->lqs_bunit_sz <= qctxt->lqc_sync_blk) {
197 oa->o_flags |= (cnt == USRQUOTA) ?
198 OBD_FL_NO_USRQUOTA : OBD_FL_NO_GRPQUOTA;
199 spin_unlock(&lqs->lqs_lock);
200 CDEBUG(D_QUOTA, "set sync flag: bunit(%lu), "
201 "sync_blk(%d)\n", lqs->lqs_bunit_sz,
202 qctxt->lqc_sync_blk);
203 /* this is for quota_search_lqs */
207 spin_unlock(&lqs->lqs_lock);
208 /* this is for quota_search_lqs */
212 memset(oqctl, 0, sizeof(*oqctl));
214 oqctl->qc_cmd = Q_GETQUOTA;
215 oqctl->qc_type = cnt;
216 oqctl->qc_id = (cnt == USRQUOTA) ? oa->o_uid : oa->o_gid;
217 err = fsfilt_quotactl(obd, obt->obt_sb, oqctl);
221 oa->o_valid &= ~((cnt == USRQUOTA) ? OBD_MD_FLUSRQUOTA :
226 if (oqctl->qc_dqblk.dqb_bhardlimit &&
227 (toqb(oqctl->qc_dqblk.dqb_curspace) >=
228 oqctl->qc_dqblk.dqb_bhardlimit))
229 oa->o_flags |= (cnt == USRQUOTA) ?
230 OBD_FL_NO_USRQUOTA : OBD_FL_NO_GRPQUOTA;
237 * check whether the left quota of certain uid and gid can satisfy a block_write
238 * or inode_create rpc. When need to acquire quota, return QUOTA_RET_ACQUOTA
240 static int quota_check_common(struct obd_device *obd, unsigned int uid,
241 unsigned int gid, int count, int cycle, int isblk,
242 struct inode *inode, int frags, int *pending)
244 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
246 __u32 id[MAXQUOTAS] = { uid, gid };
247 struct qunit_data qdata[MAXQUOTAS];
249 int rc = 0, rc2[2] = { 0, 0 };
252 CLASSERT(MAXQUOTAS < 4);
253 if (!sb_any_quota_enabled(qctxt->lqc_sb))
256 spin_lock(&qctxt->lqc_lock);
257 if (!qctxt->lqc_valid){
258 spin_unlock(&qctxt->lqc_lock);
261 spin_unlock(&qctxt->lqc_lock);
263 for (i = 0; i < MAXQUOTAS; i++) {
264 struct lustre_qunit_size *lqs = NULL;
266 qdata[i].qd_id = id[i];
267 qdata[i].qd_flags = i;
269 QDATA_SET_BLK(&qdata[i]);
270 qdata[i].qd_count = 0;
272 /* ignore root user */
273 if (qdata[i].qd_id == 0 && !QDATA_IS_GRP(&qdata[i]))
276 quota_search_lqs(&qdata[i], NULL, qctxt, &lqs);
280 rc2[i] = compute_remquota(obd, qctxt, &qdata[i], isblk);
281 spin_lock(&lqs->lqs_lock);
284 *pending = count * CFS_PAGE_SIZE;
285 /* in order to complete this write, we need extra
286 * meta blocks. This function can get it through
287 * data needed to be written b=16542 */
290 rc = fsfilt_get_mblk(obd, qctxt->lqc_sb,
299 lqs->lqs_bwrite_pending += *pending;
302 lqs->lqs_iwrite_pending += *pending;
306 /* if xx_rec < 0, that means quota are releasing,
307 * and it may return before we use quota. So if
308 * we find this situation, we assuming it has
309 * returned b=18491 */
310 if (isblk && lqs->lqs_blk_rec < 0) {
311 if (qdata[i].qd_count < -lqs->lqs_blk_rec)
312 qdata[i].qd_count = 0;
314 qdata[i].qd_count += lqs->lqs_blk_rec;
316 if (!isblk && lqs->lqs_ino_rec < 0) {
317 if (qdata[i].qd_count < -lqs->lqs_ino_rec)
318 qdata[i].qd_count = 0;
320 qdata[i].qd_count += lqs->lqs_ino_rec;
324 CDEBUG(D_QUOTA, "count: %d, lqs pending: %lu, qd_count: "LPU64
325 ", metablocks: %d, isblk: %d, pending: %d.\n", count,
326 isblk ? lqs->lqs_bwrite_pending : lqs->lqs_iwrite_pending,
327 qdata[i].qd_count, mb, isblk, *pending);
328 if (rc2[i] == QUOTA_RET_OK) {
329 if (isblk && qdata[i].qd_count < lqs->lqs_bwrite_pending)
330 rc2[i] = QUOTA_RET_ACQUOTA;
331 if (!isblk && qdata[i].qd_count <
332 lqs->lqs_iwrite_pending)
333 rc2[i] = QUOTA_RET_ACQUOTA;
336 spin_unlock(&lqs->lqs_lock);
338 if (lqs->lqs_blk_rec < 0 &&
340 lqs->lqs_bwrite_pending - lqs->lqs_blk_rec - mb)
341 OBD_FAIL_TIMEOUT(OBD_FAIL_QUOTA_DELAY_REL, 5);
343 /* When cycle is zero, lqs_*_pending will be changed. We will
344 * get reference of the lqs here and put reference of lqs in
345 * quota_pending_commit b=14784 */
349 /* this is for quota_search_lqs */
353 if (rc2[0] == QUOTA_RET_ACQUOTA || rc2[1] == QUOTA_RET_ACQUOTA)
354 RETURN(QUOTA_RET_ACQUOTA);
359 static int quota_chk_acq_common(struct obd_device *obd, unsigned int uid,
360 unsigned int gid, int count, int *pending,
361 quota_acquire acquire,
362 struct obd_trans_info *oti, int isblk,
363 struct inode *inode, int frags)
365 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
366 struct timeval work_start;
367 struct timeval work_end;
369 struct l_wait_info lwi = { 0 };
370 int rc = 0, cycle = 0, count_err = 1;
373 CDEBUG(D_QUOTA, "check quota for %s\n", obd->obd_name);
375 /* Unfortunately, if quota master is too busy to handle the
376 * pre-dqacq in time and quota hash on ost is used up, we
377 * have to wait for the completion of in flight dqacq/dqrel,
378 * in order to get enough quota for write b=12588 */
379 do_gettimeofday(&work_start);
380 while ((rc = quota_check_common(obd, uid, gid, count, cycle, isblk,
381 inode, frags, pending)) &
384 spin_lock(&qctxt->lqc_lock);
385 if (!qctxt->lqc_import && oti) {
386 spin_unlock(&qctxt->lqc_lock);
388 LASSERT(oti && oti->oti_thread &&
389 oti->oti_thread->t_watchdog);
391 lc_watchdog_disable(oti->oti_thread->t_watchdog);
392 CDEBUG(D_QUOTA, "sleep for quota master\n");
393 l_wait_event(qctxt->lqc_wait_for_qmaster, check_qm(qctxt),
395 CDEBUG(D_QUOTA, "wake up when quota master is back\n");
396 lc_watchdog_touch(oti->oti_thread->t_watchdog,
397 GET_TIMEOUT(oti->oti_thread->t_svc));
399 spin_unlock(&qctxt->lqc_lock);
404 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_HOLD_WRITE_RPC, 90);
405 /* after acquire(), we should run quota_check_common again
406 * so that we confirm there are enough quota to finish write */
407 rc = acquire(obd, uid, gid, oti, isblk);
409 /* please reference to dqacq_completion for the below */
410 /* a new request is finished, try again */
411 if (rc == QUOTA_REQ_RETURNED) {
412 CDEBUG(D_QUOTA, "finish a quota req, try again\n");
416 /* it is out of quota already */
418 CDEBUG(D_QUOTA, "out of quota, return -EDQUOT\n");
422 /* -EBUSY and others, wait a second and try again */
425 struct l_wait_info lwi;
427 if (oti && oti->oti_thread && oti->oti_thread->t_watchdog)
428 lc_watchdog_touch(oti->oti_thread->t_watchdog,
429 GET_TIMEOUT(oti->oti_thread->t_svc));
430 CDEBUG(D_QUOTA, "rc: %d, count_err: %d\n", rc,
433 init_waitqueue_head(&waitq);
434 lwi = LWI_TIMEOUT(cfs_time_seconds(min(cycle, 10)), NULL,
436 l_wait_event(waitq, 0, &lwi);
439 if (rc < 0 || cycle % 10 == 2) {
440 spin_lock(&last_print_lock);
441 if (last_print == 0 ||
442 cfs_time_before((last_print + cfs_time_seconds(30)),
443 cfs_time_current())) {
444 last_print = cfs_time_current();
445 spin_unlock(&last_print_lock);
446 CWARN("still haven't managed to acquire quota "
447 "space from the quota master after %d "
448 "retries (err=%d, rc=%d)\n",
449 cycle, count_err - 1, rc);
451 spin_unlock(&last_print_lock);
455 CDEBUG(D_QUOTA, "recheck quota with rc: %d, cycle: %d\n", rc,
458 do_gettimeofday(&work_end);
459 timediff = cfs_timeval_sub(&work_end, &work_start, NULL);
460 lprocfs_counter_add(qctxt->lqc_stats,
461 isblk ? LQUOTA_WAIT_FOR_CHK_BLK :
462 LQUOTA_WAIT_FOR_CHK_INO,
469 * when a block_write or inode_create rpc is finished, adjust the record for
470 * pending blocks and inodes
472 static int quota_pending_commit(struct obd_device *obd, unsigned int uid,
473 unsigned int gid, int pending, int isblk)
475 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
476 struct timeval work_start;
477 struct timeval work_end;
480 __u32 id[MAXQUOTAS] = { uid, gid };
481 struct qunit_data qdata[MAXQUOTAS];
484 CDEBUG(D_QUOTA, "commit pending quota for %s\n", obd->obd_name);
485 CLASSERT(MAXQUOTAS < 4);
486 if (!sb_any_quota_enabled(qctxt->lqc_sb))
489 do_gettimeofday(&work_start);
490 for (i = 0; i < MAXQUOTAS; i++) {
491 struct lustre_qunit_size *lqs = NULL;
493 qdata[i].qd_id = id[i];
494 qdata[i].qd_flags = i;
496 QDATA_SET_BLK(&qdata[i]);
497 qdata[i].qd_count = 0;
499 if (qdata[i].qd_id == 0 && !QDATA_IS_GRP(&qdata[i]))
502 quota_search_lqs(&qdata[i], NULL, qctxt, &lqs);
505 spin_lock(&lqs->lqs_lock);
507 if (lqs->lqs_bwrite_pending >= pending) {
508 lqs->lqs_bwrite_pending -= pending;
509 spin_unlock(&lqs->lqs_lock);
512 spin_unlock(&lqs->lqs_lock);
514 "there are too many blocks!\n");
517 if (lqs->lqs_iwrite_pending >= pending) {
518 lqs->lqs_iwrite_pending -= pending;
519 spin_unlock(&lqs->lqs_lock);
522 spin_unlock(&lqs->lqs_lock);
524 "there are too many files!\n");
527 CDEBUG(D_QUOTA, "lqs pending: %lu, pending: %d, "
529 isblk ? lqs->lqs_bwrite_pending :
530 lqs->lqs_iwrite_pending, pending, isblk);
533 /* When lqs_*_pening is changed back, we'll putref lqs
539 do_gettimeofday(&work_end);
540 timediff = cfs_timeval_sub(&work_end, &work_start, NULL);
541 lprocfs_counter_add(qctxt->lqc_stats,
542 isblk ? LQUOTA_WAIT_FOR_COMMIT_BLK :
543 LQUOTA_WAIT_FOR_COMMIT_INO,
549 static int mds_quota_init(void)
551 return lustre_dquot_init();
554 static int mds_quota_exit(void)
560 static int mds_quota_setup(struct obd_device *obd)
562 struct obd_device_target *obt = &obd->u.obt;
563 struct mds_obd *mds = &obd->u.mds;
567 if (unlikely(mds->mds_quota)) {
568 CWARN("try to reinitialize quota context!\n");
572 init_rwsem(&obt->obt_rwsem);
573 obt->obt_qfmt = LUSTRE_QUOTA_V2;
574 mds->mds_quota_info.qi_version = LUSTRE_QUOTA_V2;
575 atomic_set(&obt->obt_quotachecking, 1);
576 /* initialize quota master and quota context */
577 sema_init(&mds->mds_qonoff_sem, 1);
578 rc = qctxt_init(obd, dqacq_handler);
580 CERROR("initialize quota context failed! (rc:%d)\n", rc);
587 static int mds_quota_cleanup(struct obd_device *obd)
590 if (unlikely(!obd->u.mds.mds_quota))
593 qctxt_cleanup(&obd->u.obt.obt_qctxt, 0);
597 static int mds_quota_setinfo(struct obd_device *obd, void *data)
599 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
602 if (unlikely(!obd->u.mds.mds_quota))
606 QUOTA_MASTER_READY(qctxt);
608 QUOTA_MASTER_UNREADY(qctxt);
612 static int mds_quota_fs_cleanup(struct obd_device *obd)
614 struct mds_obd *mds = &obd->u.mds;
615 struct obd_quotactl oqctl;
618 if (unlikely(!mds->mds_quota))
622 memset(&oqctl, 0, sizeof(oqctl));
623 oqctl.qc_type = UGQUOTA;
625 down(&mds->mds_qonoff_sem);
626 mds_admin_quota_off(obd, &oqctl);
627 up(&mds->mds_qonoff_sem);
631 static int quota_acquire_common(struct obd_device *obd, unsigned int uid,
632 unsigned int gid, struct obd_trans_info *oti,
635 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
639 rc = qctxt_adjust_qunit(obd, qctxt, uid, gid, isblk, 1, oti);
643 #endif /* HAVE_QUOTA_SUPPORT */
644 #endif /* __KERNEL__ */
646 struct osc_quota_info {
647 struct list_head oqi_hash; /* hash list */
648 struct client_obd *oqi_cli; /* osc obd */
649 unsigned int oqi_id; /* uid/gid of a file */
650 short oqi_type; /* quota type */
653 spinlock_t qinfo_list_lock = SPIN_LOCK_UNLOCKED;
655 static struct list_head qinfo_hash[NR_DQHASH];
656 /* SLAB cache for client quota context */
657 cfs_mem_cache_t *qinfo_cachep = NULL;
659 static inline int hashfn(struct client_obd *cli, unsigned long id, int type)
660 __attribute__((__const__));
662 static inline int hashfn(struct client_obd *cli, unsigned long id, int type)
664 unsigned long tmp = ((unsigned long)cli>>6) ^ id;
665 tmp = (tmp * (MAXQUOTAS - type)) % NR_DQHASH;
669 /* caller must hold qinfo_list_lock */
670 static inline void insert_qinfo_hash(struct osc_quota_info *oqi)
672 struct list_head *head = qinfo_hash +
673 hashfn(oqi->oqi_cli, oqi->oqi_id, oqi->oqi_type);
675 LASSERT_SPIN_LOCKED(&qinfo_list_lock);
676 list_add(&oqi->oqi_hash, head);
679 /* caller must hold qinfo_list_lock */
680 static inline void remove_qinfo_hash(struct osc_quota_info *oqi)
682 LASSERT_SPIN_LOCKED(&qinfo_list_lock);
683 list_del_init(&oqi->oqi_hash);
686 /* caller must hold qinfo_list_lock */
687 static inline struct osc_quota_info *find_qinfo(struct client_obd *cli,
688 unsigned int id, int type)
690 unsigned int hashent = hashfn(cli, id, type);
691 struct osc_quota_info *oqi;
694 LASSERT_SPIN_LOCKED(&qinfo_list_lock);
695 list_for_each_entry(oqi, &qinfo_hash[hashent], oqi_hash) {
696 if (oqi->oqi_cli == cli &&
697 oqi->oqi_id == id && oqi->oqi_type == type)
703 static struct osc_quota_info *alloc_qinfo(struct client_obd *cli,
704 unsigned int id, int type)
706 struct osc_quota_info *oqi;
709 OBD_SLAB_ALLOC(oqi, qinfo_cachep, CFS_ALLOC_STD, sizeof(*oqi));
713 CFS_INIT_LIST_HEAD(&oqi->oqi_hash);
716 oqi->oqi_type = type;
721 static void free_qinfo(struct osc_quota_info *oqi)
723 OBD_SLAB_FREE(oqi, qinfo_cachep, sizeof(*oqi));
726 int osc_quota_chkdq(struct client_obd *cli, unsigned int uid, unsigned int gid)
729 int cnt, rc = QUOTA_OK;
732 spin_lock(&qinfo_list_lock);
733 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
734 struct osc_quota_info *oqi = NULL;
736 id = (cnt == USRQUOTA) ? uid : gid;
737 oqi = find_qinfo(cli, id, cnt);
743 spin_unlock(&qinfo_list_lock);
748 int osc_quota_setdq(struct client_obd *cli, unsigned int uid, unsigned int gid,
749 obd_flag valid, obd_flag flags)
757 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
758 struct osc_quota_info *oqi, *old;
760 if (!(valid & ((cnt == USRQUOTA) ?
761 OBD_MD_FLUSRQUOTA : OBD_MD_FLGRPQUOTA)))
764 id = (cnt == USRQUOTA) ? uid : gid;
765 noquota = (cnt == USRQUOTA) ?
766 (flags & OBD_FL_NO_USRQUOTA) : (flags & OBD_FL_NO_GRPQUOTA);
768 oqi = alloc_qinfo(cli, id, cnt);
770 spin_lock(&qinfo_list_lock);
772 old = find_qinfo(cli, id, cnt);
774 remove_qinfo_hash(old);
775 else if (!old && noquota)
776 insert_qinfo_hash(oqi);
778 spin_unlock(&qinfo_list_lock);
785 CERROR("not enough mem!\n");
794 int osc_quota_cleanup(struct obd_device *obd)
796 struct client_obd *cli = &obd->u.cli;
797 struct osc_quota_info *oqi, *n;
801 spin_lock(&qinfo_list_lock);
802 for (i = 0; i < NR_DQHASH; i++) {
803 list_for_each_entry_safe(oqi, n, &qinfo_hash[i], oqi_hash) {
804 if (oqi->oqi_cli != cli)
806 remove_qinfo_hash(oqi);
810 spin_unlock(&qinfo_list_lock);
815 int osc_quota_init(void)
820 LASSERT(qinfo_cachep == NULL);
821 qinfo_cachep = cfs_mem_cache_create("osc_quota_info",
822 sizeof(struct osc_quota_info),
827 for (i = 0; i < NR_DQHASH; i++)
828 CFS_INIT_LIST_HEAD(qinfo_hash + i);
833 int osc_quota_exit(void)
835 struct osc_quota_info *oqi, *n;
839 spin_lock(&qinfo_list_lock);
840 for (i = 0; i < NR_DQHASH; i++) {
841 list_for_each_entry_safe(oqi, n, &qinfo_hash[i], oqi_hash) {
842 remove_qinfo_hash(oqi);
846 spin_unlock(&qinfo_list_lock);
848 rc = cfs_mem_cache_destroy(qinfo_cachep);
849 LASSERTF(rc == 0, "couldn't destory qinfo_cachep slab\n");
856 #ifdef HAVE_QUOTA_SUPPORT
857 quota_interface_t mds_quota_interface = {
858 .quota_init = mds_quota_init,
859 .quota_exit = mds_quota_exit,
860 .quota_setup = mds_quota_setup,
861 .quota_cleanup = mds_quota_cleanup,
862 .quota_check = target_quota_check,
863 .quota_ctl = mds_quota_ctl,
864 .quota_setinfo = mds_quota_setinfo,
865 .quota_fs_cleanup = mds_quota_fs_cleanup,
866 .quota_recovery = mds_quota_recovery,
867 .quota_adjust = mds_quota_adjust,
868 .quota_chkquota = quota_chk_acq_common,
869 .quota_acquire = quota_acquire_common,
870 .quota_pending_commit = quota_pending_commit,
873 quota_interface_t filter_quota_interface = {
874 .quota_setup = filter_quota_setup,
875 .quota_cleanup = filter_quota_cleanup,
876 .quota_check = target_quota_check,
877 .quota_ctl = filter_quota_ctl,
878 .quota_setinfo = filter_quota_setinfo,
879 .quota_clearinfo = filter_quota_clearinfo,
880 .quota_enforce = filter_quota_enforce,
881 .quota_getflag = filter_quota_getflag,
882 .quota_acquire = quota_acquire_common,
883 .quota_adjust = filter_quota_adjust,
884 .quota_chkquota = quota_chk_acq_common,
885 .quota_adjust_qunit = filter_quota_adjust_qunit,
886 .quota_pending_commit = quota_pending_commit,
889 #endif /* __KERNEL__ */
891 quota_interface_t mdc_quota_interface = {
892 .quota_ctl = client_quota_ctl,
893 .quota_check = client_quota_check,
894 .quota_poll_check = client_quota_poll_check,
897 quota_interface_t lmv_quota_interface = {
898 .quota_ctl = lmv_quota_ctl,
899 .quota_check = lmv_quota_check,
902 quota_interface_t osc_quota_interface = {
903 .quota_ctl = client_quota_ctl,
904 .quota_check = client_quota_check,
905 .quota_poll_check = client_quota_poll_check,
906 .quota_init = osc_quota_init,
907 .quota_exit = osc_quota_exit,
908 .quota_chkdq = osc_quota_chkdq,
909 .quota_setdq = osc_quota_setdq,
910 .quota_cleanup = osc_quota_cleanup,
911 .quota_adjust_qunit = client_quota_adjust_qunit,
914 quota_interface_t lov_quota_interface = {
915 .quota_ctl = lov_quota_ctl,
916 .quota_check = lov_quota_check,
917 .quota_adjust_qunit = lov_quota_adjust_qunit,
922 cfs_proc_dir_entry_t *lquota_type_proc_dir = NULL;
924 static int __init init_lustre_quota(void)
926 #ifdef HAVE_QUOTA_SUPPORT
929 lquota_type_proc_dir = lprocfs_register(OBD_LQUOTA_DEVICENAME,
932 if (IS_ERR(lquota_type_proc_dir)) {
933 CERROR("LProcFS failed in lquota-init\n");
934 rc = PTR_ERR(lquota_type_proc_dir);
938 rc = qunit_cache_init();
942 PORTAL_SYMBOL_REGISTER(filter_quota_interface);
943 PORTAL_SYMBOL_REGISTER(mds_quota_interface);
945 PORTAL_SYMBOL_REGISTER(mdc_quota_interface);
946 PORTAL_SYMBOL_REGISTER(lmv_quota_interface);
947 PORTAL_SYMBOL_REGISTER(osc_quota_interface);
948 PORTAL_SYMBOL_REGISTER(lov_quota_interface);
952 static void /*__exit*/ exit_lustre_quota(void)
954 PORTAL_SYMBOL_UNREGISTER(mdc_quota_interface);
955 PORTAL_SYMBOL_UNREGISTER(lmv_quota_interface);
956 PORTAL_SYMBOL_UNREGISTER(osc_quota_interface);
957 PORTAL_SYMBOL_UNREGISTER(lov_quota_interface);
958 #ifdef HAVE_QUOTA_SUPPORT
959 PORTAL_SYMBOL_UNREGISTER(filter_quota_interface);
960 PORTAL_SYMBOL_UNREGISTER(mds_quota_interface);
962 qunit_cache_cleanup();
964 if (lquota_type_proc_dir)
965 lprocfs_remove(&lquota_type_proc_dir);
969 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
970 MODULE_DESCRIPTION("Lustre Quota");
971 MODULE_LICENSE("GPL");
973 cfs_module(lquota, "1.0.0", init_lustre_quota, exit_lustre_quota);
975 #ifdef HAVE_QUOTA_SUPPORT
976 EXPORT_SYMBOL(mds_quota_interface);
977 EXPORT_SYMBOL(filter_quota_interface);
979 EXPORT_SYMBOL(mdc_quota_interface);
980 EXPORT_SYMBOL(lmv_quota_interface);
981 EXPORT_SYMBOL(osc_quota_interface);
982 EXPORT_SYMBOL(lov_quota_interface);
983 #endif /* __KERNEL */