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 = exp->exp_imp_reverse;
103 LASSERT(imp != NULL);
105 /* setup the quota context import */
106 spin_lock(&qctxt->lqc_lock);
107 if (qctxt->lqc_import != NULL) {
108 spin_unlock(&qctxt->lqc_lock);
109 if (qctxt->lqc_import == imp)
110 CDEBUG(D_WARNING, "%s: lqc_import(%p) of obd(%p) was "
111 "activated already.\n", obd->obd_name, imp, obd);
113 CDEBUG(D_ERROR, "%s: lqc_import(%p:%p) of obd(%p) was "
114 "activated by others.\n", obd->obd_name,
115 qctxt->lqc_import, imp, obd);
117 qctxt->lqc_import = imp;
118 /* make imp's connect flags equal relative exp's connect flags
119 * adding it to avoid the scan export list */
120 imp->imp_connect_data.ocd_connect_flags |=
121 (exp->exp_connect_flags &
122 (OBD_CONNECT_QUOTA64 | OBD_CONNECT_CHANGE_QS));
123 spin_unlock(&qctxt->lqc_lock);
124 CDEBUG(D_QUOTA, "%s: lqc_import(%p) of obd(%p) is reactivated "
125 "now.\n", obd->obd_name, imp, obd);
127 cfs_waitq_signal(&qctxt->lqc_wait_for_qmaster);
128 /* start quota slave recovery thread. (release high limits) */
129 qslave_start_recovery(obd, qctxt);
134 static int filter_quota_clearinfo(struct obd_export *exp, struct obd_device *obd)
136 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
137 struct obd_import *imp = exp->exp_imp_reverse;
140 /* lquota may be not set up before destroying export, b=14896 */
141 if (!obd->obd_set_up)
144 if (unlikely(imp == NULL))
147 /* when exp->exp_imp_reverse is destroyed, the corresponding lqc_import
148 * should be invalid b=12374 */
149 spin_lock(&qctxt->lqc_lock);
150 if (qctxt->lqc_import == imp) {
151 qctxt->lqc_import = NULL;
152 spin_unlock(&qctxt->lqc_lock);
153 CDEBUG(D_QUOTA, "%s: lqc_import(%p) of obd(%p) is invalid now.\n",
154 obd->obd_name, imp, obd);
155 ptlrpc_cleanup_imp(imp);
156 dqacq_interrupt(qctxt);
158 spin_unlock(&qctxt->lqc_lock);
163 static int filter_quota_enforce(struct obd_device *obd, unsigned int ignore)
167 if (!sb_any_quota_enabled(obd->u.obt.obt_sb))
171 CDEBUG(D_QUOTA, "blocks will be written with ignoring quota.\n");
172 cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
174 cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
180 static int filter_quota_getflag(struct obd_device *obd, struct obdo *oa)
182 struct obd_device_target *obt = &obd->u.obt;
183 struct lustre_quota_ctxt *qctxt = &obt->obt_qctxt;
184 int err, cnt, rc = 0;
185 struct obd_quotactl *oqctl;
188 if (!sb_any_quota_enabled(obt->obt_sb))
191 OBD_ALLOC_PTR(oqctl);
193 CERROR("Not enough memory!");
197 /* set over quota flags for a uid/gid */
198 oa->o_valid |= OBD_MD_FLUSRQUOTA | OBD_MD_FLGRPQUOTA;
199 oa->o_flags &= ~(OBD_FL_NO_USRQUOTA | OBD_FL_NO_GRPQUOTA);
201 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
202 struct quota_adjust_qunit oqaq_tmp;
203 struct lustre_qunit_size *lqs = NULL;
205 oqaq_tmp.qaq_flags = cnt;
206 oqaq_tmp.qaq_id = (cnt == USRQUOTA) ? oa->o_uid : oa->o_gid;
208 quota_search_lqs(NULL, &oqaq_tmp, qctxt, &lqs);
210 spin_lock(&lqs->lqs_lock);
211 if (lqs->lqs_bunit_sz <= qctxt->lqc_sync_blk) {
212 oa->o_flags |= (cnt == USRQUOTA) ?
213 OBD_FL_NO_USRQUOTA : OBD_FL_NO_GRPQUOTA;
214 spin_unlock(&lqs->lqs_lock);
215 CDEBUG(D_QUOTA, "set sync flag: bunit(%lu), "
216 "sync_blk(%d)\n", lqs->lqs_bunit_sz,
217 qctxt->lqc_sync_blk);
218 /* this is for quota_search_lqs */
222 spin_unlock(&lqs->lqs_lock);
223 /* this is for quota_search_lqs */
227 memset(oqctl, 0, sizeof(*oqctl));
229 oqctl->qc_cmd = Q_GETQUOTA;
230 oqctl->qc_type = cnt;
231 oqctl->qc_id = (cnt == USRQUOTA) ? oa->o_uid : oa->o_gid;
232 err = fsfilt_quotactl(obd, obt->obt_sb, oqctl);
236 oa->o_valid &= ~((cnt == USRQUOTA) ? OBD_MD_FLUSRQUOTA :
241 if (oqctl->qc_dqblk.dqb_bhardlimit &&
242 (toqb(oqctl->qc_dqblk.dqb_curspace) >=
243 oqctl->qc_dqblk.dqb_bhardlimit))
244 oa->o_flags |= (cnt == USRQUOTA) ?
245 OBD_FL_NO_USRQUOTA : OBD_FL_NO_GRPQUOTA;
252 * check whether the left quota of certain uid and gid can satisfy a block_write
253 * or inode_create rpc. When need to acquire quota, return QUOTA_RET_ACQUOTA
255 static int quota_check_common(struct obd_device *obd, unsigned int uid,
256 unsigned int gid, int count, int cycle, int isblk,
257 struct inode *inode, int frags, int *pending)
259 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
261 __u32 id[MAXQUOTAS] = { uid, gid };
262 struct qunit_data qdata[MAXQUOTAS];
264 int rc = 0, rc2[2] = { 0, 0 };
267 CLASSERT(MAXQUOTAS < 4);
268 if (!sb_any_quota_enabled(qctxt->lqc_sb))
271 spin_lock(&qctxt->lqc_lock);
272 if (!qctxt->lqc_valid){
273 spin_unlock(&qctxt->lqc_lock);
276 spin_unlock(&qctxt->lqc_lock);
278 for (i = 0; i < MAXQUOTAS; i++) {
279 struct lustre_qunit_size *lqs = NULL;
281 qdata[i].qd_id = id[i];
282 qdata[i].qd_flags = i;
284 QDATA_SET_BLK(&qdata[i]);
285 qdata[i].qd_count = 0;
287 /* ignore root user */
288 if (qdata[i].qd_id == 0 && !QDATA_IS_GRP(&qdata[i]))
291 quota_search_lqs(&qdata[i], NULL, qctxt, &lqs);
295 rc2[i] = compute_remquota(obd, qctxt, &qdata[i], isblk);
296 spin_lock(&lqs->lqs_lock);
299 *pending = count * CFS_PAGE_SIZE;
300 /* in order to complete this write, we need extra
301 * meta blocks. This function can get it through
302 * data needed to be written b=16542 */
305 rc = fsfilt_get_mblk(obd, qctxt->lqc_sb,
314 lqs->lqs_bwrite_pending += *pending;
317 lqs->lqs_iwrite_pending += *pending;
321 /* if xx_rec < 0, that means quota are releasing,
322 * and it may return before we use quota. So if
323 * we find this situation, we assuming it has
324 * returned b=18491 */
325 if (isblk && lqs->lqs_blk_rec < 0) {
326 if (qdata[i].qd_count < -lqs->lqs_blk_rec)
327 qdata[i].qd_count = 0;
329 qdata[i].qd_count += lqs->lqs_blk_rec;
331 if (!isblk && lqs->lqs_ino_rec < 0) {
332 if (qdata[i].qd_count < -lqs->lqs_ino_rec)
333 qdata[i].qd_count = 0;
335 qdata[i].qd_count += lqs->lqs_ino_rec;
339 CDEBUG(D_QUOTA, "count: %d, lqs pending: %lu, qd_count: "LPU64
340 ", metablocks: %d, isblk: %d, pending: %d.\n", count,
341 isblk ? lqs->lqs_bwrite_pending : lqs->lqs_iwrite_pending,
342 qdata[i].qd_count, mb, isblk, *pending);
343 if (rc2[i] == QUOTA_RET_OK) {
344 if (isblk && qdata[i].qd_count < lqs->lqs_bwrite_pending)
345 rc2[i] = QUOTA_RET_ACQUOTA;
346 if (!isblk && qdata[i].qd_count <
347 lqs->lqs_iwrite_pending)
348 rc2[i] = QUOTA_RET_ACQUOTA;
351 spin_unlock(&lqs->lqs_lock);
353 if (lqs->lqs_blk_rec < 0 &&
355 lqs->lqs_bwrite_pending - lqs->lqs_blk_rec - mb)
356 OBD_FAIL_TIMEOUT(OBD_FAIL_QUOTA_DELAY_REL, 5);
358 /* When cycle is zero, lqs_*_pending will be changed. We will
359 * get reference of the lqs here and put reference of lqs in
360 * quota_pending_commit b=14784 */
364 /* this is for quota_search_lqs */
368 if (rc2[0] == QUOTA_RET_ACQUOTA || rc2[1] == QUOTA_RET_ACQUOTA)
369 RETURN(QUOTA_RET_ACQUOTA);
374 static int quota_chk_acq_common(struct obd_device *obd, unsigned int uid,
375 unsigned int gid, int count, int *pending,
376 quota_acquire acquire,
377 struct obd_trans_info *oti, int isblk,
378 struct inode *inode, int frags)
380 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
381 struct timeval work_start;
382 struct timeval work_end;
384 struct l_wait_info lwi = { 0 };
385 int rc = 0, cycle = 0, count_err = 1;
388 CDEBUG(D_QUOTA, "check quota for %s\n", obd->obd_name);
390 /* Unfortunately, if quota master is too busy to handle the
391 * pre-dqacq in time and quota hash on ost is used up, we
392 * have to wait for the completion of in flight dqacq/dqrel,
393 * in order to get enough quota for write b=12588 */
394 do_gettimeofday(&work_start);
395 while ((rc = quota_check_common(obd, uid, gid, count, cycle, isblk,
396 inode, frags, pending)) &
399 spin_lock(&qctxt->lqc_lock);
400 if (!qctxt->lqc_import && oti) {
401 spin_unlock(&qctxt->lqc_lock);
403 LASSERT(oti && oti->oti_thread &&
404 oti->oti_thread->t_watchdog);
406 lc_watchdog_disable(oti->oti_thread->t_watchdog);
407 CDEBUG(D_QUOTA, "sleep for quota master\n");
408 l_wait_event(qctxt->lqc_wait_for_qmaster, check_qm(qctxt),
410 CDEBUG(D_QUOTA, "wake up when quota master is back\n");
411 lc_watchdog_touch(oti->oti_thread->t_watchdog,
412 GET_TIMEOUT(oti->oti_thread->t_svc));
414 spin_unlock(&qctxt->lqc_lock);
419 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_HOLD_WRITE_RPC, 90);
420 /* after acquire(), we should run quota_check_common again
421 * so that we confirm there are enough quota to finish write */
422 rc = acquire(obd, uid, gid, oti, isblk);
424 /* please reference to dqacq_completion for the below */
425 /* a new request is finished, try again */
426 if (rc == QUOTA_REQ_RETURNED) {
427 CDEBUG(D_QUOTA, "finish a quota req, try again\n");
431 /* it is out of quota already */
433 CDEBUG(D_QUOTA, "out of quota, return -EDQUOT\n");
437 /* -EBUSY and others, wait a second and try again */
440 struct l_wait_info lwi;
442 if (oti && oti->oti_thread && oti->oti_thread->t_watchdog)
443 lc_watchdog_touch(oti->oti_thread->t_watchdog,
444 GET_TIMEOUT(oti->oti_thread->t_svc));
445 CDEBUG(D_QUOTA, "rc: %d, count_err: %d\n", rc,
448 init_waitqueue_head(&waitq);
449 lwi = LWI_TIMEOUT(cfs_time_seconds(min(cycle, 10)), NULL,
451 l_wait_event(waitq, 0, &lwi);
454 if (rc < 0 || cycle % 10 == 2) {
455 spin_lock(&last_print_lock);
456 if (last_print == 0 ||
457 cfs_time_before((last_print + cfs_time_seconds(30)),
458 cfs_time_current())) {
459 last_print = cfs_time_current();
460 spin_unlock(&last_print_lock);
461 CWARN("still haven't managed to acquire quota "
462 "space from the quota master after %d "
463 "retries (err=%d, rc=%d)\n",
464 cycle, count_err - 1, rc);
466 spin_unlock(&last_print_lock);
470 CDEBUG(D_QUOTA, "recheck quota with rc: %d, cycle: %d\n", rc,
473 do_gettimeofday(&work_end);
474 timediff = cfs_timeval_sub(&work_end, &work_start, NULL);
475 lprocfs_counter_add(qctxt->lqc_stats,
476 isblk ? LQUOTA_WAIT_FOR_CHK_BLK :
477 LQUOTA_WAIT_FOR_CHK_INO,
484 * when a block_write or inode_create rpc is finished, adjust the record for
485 * pending blocks and inodes
487 static int quota_pending_commit(struct obd_device *obd, unsigned int uid,
488 unsigned int gid, int pending, int isblk)
490 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
491 struct timeval work_start;
492 struct timeval work_end;
495 __u32 id[MAXQUOTAS] = { uid, gid };
496 struct qunit_data qdata[MAXQUOTAS];
499 CDEBUG(D_QUOTA, "commit pending quota for %s\n", obd->obd_name);
500 CLASSERT(MAXQUOTAS < 4);
501 if (!sb_any_quota_enabled(qctxt->lqc_sb))
504 do_gettimeofday(&work_start);
505 for (i = 0; i < MAXQUOTAS; i++) {
506 struct lustre_qunit_size *lqs = NULL;
508 qdata[i].qd_id = id[i];
509 qdata[i].qd_flags = i;
511 QDATA_SET_BLK(&qdata[i]);
512 qdata[i].qd_count = 0;
514 if (qdata[i].qd_id == 0 && !QDATA_IS_GRP(&qdata[i]))
517 quota_search_lqs(&qdata[i], NULL, qctxt, &lqs);
520 spin_lock(&lqs->lqs_lock);
522 if (lqs->lqs_bwrite_pending >= pending) {
523 lqs->lqs_bwrite_pending -= pending;
524 spin_unlock(&lqs->lqs_lock);
527 spin_unlock(&lqs->lqs_lock);
529 "there are too many blocks!\n");
532 if (lqs->lqs_iwrite_pending >= pending) {
533 lqs->lqs_iwrite_pending -= pending;
534 spin_unlock(&lqs->lqs_lock);
537 spin_unlock(&lqs->lqs_lock);
539 "there are too many files!\n");
542 CDEBUG(D_QUOTA, "lqs pending: %lu, pending: %d, "
544 isblk ? lqs->lqs_bwrite_pending :
545 lqs->lqs_iwrite_pending, pending, isblk);
548 /* When lqs_*_pening is changed back, we'll putref lqs
554 do_gettimeofday(&work_end);
555 timediff = cfs_timeval_sub(&work_end, &work_start, NULL);
556 lprocfs_counter_add(qctxt->lqc_stats,
557 isblk ? LQUOTA_WAIT_FOR_COMMIT_BLK :
558 LQUOTA_WAIT_FOR_COMMIT_INO,
564 static int mds_quota_init(void)
566 return lustre_dquot_init();
569 static int mds_quota_exit(void)
575 static int mds_quota_setup(struct obd_device *obd)
577 struct obd_device_target *obt = &obd->u.obt;
578 struct mds_obd *mds = &obd->u.mds;
582 if (unlikely(mds->mds_quota)) {
583 CWARN("try to reinitialize quota context!\n");
587 init_rwsem(&obt->obt_rwsem);
588 obt->obt_qfmt = LUSTRE_QUOTA_V2;
589 mds->mds_quota_info.qi_version = LUSTRE_QUOTA_V2;
590 atomic_set(&obt->obt_quotachecking, 1);
591 /* initialize quota master and quota context */
592 sema_init(&mds->mds_qonoff_sem, 1);
593 rc = qctxt_init(obd, dqacq_handler);
595 CERROR("initialize quota context failed! (rc:%d)\n", rc);
602 static int mds_quota_cleanup(struct obd_device *obd)
605 if (unlikely(!obd->u.mds.mds_quota))
608 qctxt_cleanup(&obd->u.obt.obt_qctxt, 0);
612 static int mds_quota_setinfo(struct obd_device *obd, void *data)
614 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
617 if (unlikely(!obd->u.mds.mds_quota))
621 QUOTA_MASTER_READY(qctxt);
623 QUOTA_MASTER_UNREADY(qctxt);
627 static int mds_quota_fs_cleanup(struct obd_device *obd)
629 struct mds_obd *mds = &obd->u.mds;
630 struct obd_quotactl oqctl;
633 if (unlikely(!mds->mds_quota))
637 memset(&oqctl, 0, sizeof(oqctl));
638 oqctl.qc_type = UGQUOTA;
640 down(&mds->mds_qonoff_sem);
641 mds_admin_quota_off(obd, &oqctl);
642 up(&mds->mds_qonoff_sem);
646 static int quota_acquire_common(struct obd_device *obd, unsigned int uid,
647 unsigned int gid, struct obd_trans_info *oti,
650 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
654 rc = qctxt_adjust_qunit(obd, qctxt, uid, gid, isblk, 1, oti);
658 #endif /* HAVE_QUOTA_SUPPORT */
659 #endif /* __KERNEL__ */
661 struct osc_quota_info {
662 struct list_head oqi_hash; /* hash list */
663 struct client_obd *oqi_cli; /* osc obd */
664 unsigned int oqi_id; /* uid/gid of a file */
665 short oqi_type; /* quota type */
668 spinlock_t qinfo_list_lock = SPIN_LOCK_UNLOCKED;
670 static struct list_head qinfo_hash[NR_DQHASH];
671 /* SLAB cache for client quota context */
672 cfs_mem_cache_t *qinfo_cachep = NULL;
674 static inline int hashfn(struct client_obd *cli, unsigned long id, int type)
675 __attribute__((__const__));
677 static inline int hashfn(struct client_obd *cli, unsigned long id, int type)
679 unsigned long tmp = ((unsigned long)cli>>6) ^ id;
680 tmp = (tmp * (MAXQUOTAS - type)) % NR_DQHASH;
684 /* caller must hold qinfo_list_lock */
685 static inline void insert_qinfo_hash(struct osc_quota_info *oqi)
687 struct list_head *head = qinfo_hash +
688 hashfn(oqi->oqi_cli, oqi->oqi_id, oqi->oqi_type);
690 LASSERT_SPIN_LOCKED(&qinfo_list_lock);
691 list_add(&oqi->oqi_hash, head);
694 /* caller must hold qinfo_list_lock */
695 static inline void remove_qinfo_hash(struct osc_quota_info *oqi)
697 LASSERT_SPIN_LOCKED(&qinfo_list_lock);
698 list_del_init(&oqi->oqi_hash);
701 /* caller must hold qinfo_list_lock */
702 static inline struct osc_quota_info *find_qinfo(struct client_obd *cli,
703 unsigned int id, int type)
705 unsigned int hashent = hashfn(cli, id, type);
706 struct osc_quota_info *oqi;
709 LASSERT_SPIN_LOCKED(&qinfo_list_lock);
710 list_for_each_entry(oqi, &qinfo_hash[hashent], oqi_hash) {
711 if (oqi->oqi_cli == cli &&
712 oqi->oqi_id == id && oqi->oqi_type == type)
718 static struct osc_quota_info *alloc_qinfo(struct client_obd *cli,
719 unsigned int id, int type)
721 struct osc_quota_info *oqi;
724 OBD_SLAB_ALLOC(oqi, qinfo_cachep, CFS_ALLOC_STD, sizeof(*oqi));
728 CFS_INIT_LIST_HEAD(&oqi->oqi_hash);
731 oqi->oqi_type = type;
736 static void free_qinfo(struct osc_quota_info *oqi)
738 OBD_SLAB_FREE(oqi, qinfo_cachep, sizeof(*oqi));
741 int osc_quota_chkdq(struct client_obd *cli, unsigned int uid, unsigned int gid)
744 int cnt, rc = QUOTA_OK;
747 spin_lock(&qinfo_list_lock);
748 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
749 struct osc_quota_info *oqi = NULL;
751 id = (cnt == USRQUOTA) ? uid : gid;
752 oqi = find_qinfo(cli, id, cnt);
758 spin_unlock(&qinfo_list_lock);
763 int osc_quota_setdq(struct client_obd *cli, unsigned int uid, unsigned int gid,
764 obd_flag valid, obd_flag flags)
772 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
773 struct osc_quota_info *oqi, *old;
775 if (!(valid & ((cnt == USRQUOTA) ?
776 OBD_MD_FLUSRQUOTA : OBD_MD_FLGRPQUOTA)))
779 id = (cnt == USRQUOTA) ? uid : gid;
780 noquota = (cnt == USRQUOTA) ?
781 (flags & OBD_FL_NO_USRQUOTA) : (flags & OBD_FL_NO_GRPQUOTA);
783 oqi = alloc_qinfo(cli, id, cnt);
785 spin_lock(&qinfo_list_lock);
787 old = find_qinfo(cli, id, cnt);
789 remove_qinfo_hash(old);
790 else if (!old && noquota)
791 insert_qinfo_hash(oqi);
793 spin_unlock(&qinfo_list_lock);
800 CERROR("not enough mem!\n");
809 int osc_quota_cleanup(struct obd_device *obd)
811 struct client_obd *cli = &obd->u.cli;
812 struct osc_quota_info *oqi, *n;
816 spin_lock(&qinfo_list_lock);
817 for (i = 0; i < NR_DQHASH; i++) {
818 list_for_each_entry_safe(oqi, n, &qinfo_hash[i], oqi_hash) {
819 if (oqi->oqi_cli != cli)
821 remove_qinfo_hash(oqi);
825 spin_unlock(&qinfo_list_lock);
830 int osc_quota_init(void)
835 LASSERT(qinfo_cachep == NULL);
836 qinfo_cachep = cfs_mem_cache_create("osc_quota_info",
837 sizeof(struct osc_quota_info),
842 for (i = 0; i < NR_DQHASH; i++)
843 CFS_INIT_LIST_HEAD(qinfo_hash + i);
848 int osc_quota_exit(void)
850 struct osc_quota_info *oqi, *n;
854 spin_lock(&qinfo_list_lock);
855 for (i = 0; i < NR_DQHASH; i++) {
856 list_for_each_entry_safe(oqi, n, &qinfo_hash[i], oqi_hash) {
857 remove_qinfo_hash(oqi);
861 spin_unlock(&qinfo_list_lock);
863 rc = cfs_mem_cache_destroy(qinfo_cachep);
864 LASSERTF(rc == 0, "couldn't destory qinfo_cachep slab\n");
871 #ifdef HAVE_QUOTA_SUPPORT
872 quota_interface_t mds_quota_interface = {
873 .quota_init = mds_quota_init,
874 .quota_exit = mds_quota_exit,
875 .quota_setup = mds_quota_setup,
876 .quota_cleanup = mds_quota_cleanup,
877 .quota_check = target_quota_check,
878 .quota_ctl = mds_quota_ctl,
879 .quota_setinfo = mds_quota_setinfo,
880 .quota_fs_cleanup = mds_quota_fs_cleanup,
881 .quota_recovery = mds_quota_recovery,
882 .quota_adjust = mds_quota_adjust,
883 .quota_chkquota = quota_chk_acq_common,
884 .quota_acquire = quota_acquire_common,
885 .quota_pending_commit = quota_pending_commit,
888 quota_interface_t filter_quota_interface = {
889 .quota_setup = filter_quota_setup,
890 .quota_cleanup = filter_quota_cleanup,
891 .quota_check = target_quota_check,
892 .quota_ctl = filter_quota_ctl,
893 .quota_setinfo = filter_quota_setinfo,
894 .quota_clearinfo = filter_quota_clearinfo,
895 .quota_enforce = filter_quota_enforce,
896 .quota_getflag = filter_quota_getflag,
897 .quota_acquire = quota_acquire_common,
898 .quota_adjust = filter_quota_adjust,
899 .quota_chkquota = quota_chk_acq_common,
900 .quota_adjust_qunit = filter_quota_adjust_qunit,
901 .quota_pending_commit = quota_pending_commit,
904 #endif /* __KERNEL__ */
906 quota_interface_t mdc_quota_interface = {
907 .quota_ctl = client_quota_ctl,
908 .quota_check = client_quota_check,
909 .quota_poll_check = client_quota_poll_check,
912 quota_interface_t lmv_quota_interface = {
913 .quota_ctl = lmv_quota_ctl,
914 .quota_check = lmv_quota_check,
917 quota_interface_t osc_quota_interface = {
918 .quota_ctl = client_quota_ctl,
919 .quota_check = client_quota_check,
920 .quota_poll_check = client_quota_poll_check,
921 .quota_init = osc_quota_init,
922 .quota_exit = osc_quota_exit,
923 .quota_chkdq = osc_quota_chkdq,
924 .quota_setdq = osc_quota_setdq,
925 .quota_cleanup = osc_quota_cleanup,
926 .quota_adjust_qunit = client_quota_adjust_qunit,
929 quota_interface_t lov_quota_interface = {
930 .quota_ctl = lov_quota_ctl,
931 .quota_check = lov_quota_check,
932 .quota_adjust_qunit = lov_quota_adjust_qunit,
937 cfs_proc_dir_entry_t *lquota_type_proc_dir = NULL;
939 static int __init init_lustre_quota(void)
941 #ifdef HAVE_QUOTA_SUPPORT
944 lquota_type_proc_dir = lprocfs_register(OBD_LQUOTA_DEVICENAME,
947 if (IS_ERR(lquota_type_proc_dir)) {
948 CERROR("LProcFS failed in lquota-init\n");
949 rc = PTR_ERR(lquota_type_proc_dir);
953 rc = qunit_cache_init();
957 PORTAL_SYMBOL_REGISTER(filter_quota_interface);
958 PORTAL_SYMBOL_REGISTER(mds_quota_interface);
960 PORTAL_SYMBOL_REGISTER(mdc_quota_interface);
961 PORTAL_SYMBOL_REGISTER(lmv_quota_interface);
962 PORTAL_SYMBOL_REGISTER(osc_quota_interface);
963 PORTAL_SYMBOL_REGISTER(lov_quota_interface);
967 static void /*__exit*/ exit_lustre_quota(void)
969 PORTAL_SYMBOL_UNREGISTER(mdc_quota_interface);
970 PORTAL_SYMBOL_UNREGISTER(lmv_quota_interface);
971 PORTAL_SYMBOL_UNREGISTER(osc_quota_interface);
972 PORTAL_SYMBOL_UNREGISTER(lov_quota_interface);
973 #ifdef HAVE_QUOTA_SUPPORT
974 PORTAL_SYMBOL_UNREGISTER(filter_quota_interface);
975 PORTAL_SYMBOL_UNREGISTER(mds_quota_interface);
977 qunit_cache_cleanup();
979 if (lquota_type_proc_dir)
980 lprocfs_remove(&lquota_type_proc_dir);
984 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
985 MODULE_DESCRIPTION("Lustre Quota");
986 MODULE_LICENSE("GPL");
988 cfs_module(lquota, "1.0.0", init_lustre_quota, exit_lustre_quota);
990 #ifdef HAVE_QUOTA_SUPPORT
991 EXPORT_SYMBOL(mds_quota_interface);
992 EXPORT_SYMBOL(filter_quota_interface);
994 EXPORT_SYMBOL(mdc_quota_interface);
995 EXPORT_SYMBOL(lmv_quota_interface);
996 EXPORT_SYMBOL(osc_quota_interface);
997 EXPORT_SYMBOL(lov_quota_interface);
998 #endif /* __KERNEL */