1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * lustre/quota/quota_master.c
5 * Lustre Quota Master request handler
7 * Copyright (c) 2001-2005 Cluster File Systems, Inc.
8 * Author: Niu YaWei <niu@clusterfs.com>
10 * This file is part of Lustre, http://www.lustre.org.
12 * No redistribution or use is permitted outside of Cluster File Systems, Inc.
16 # define EXPORT_SYMTAB
19 #define DEBUG_SUBSYSTEM S_MDS
21 #include <linux/version.h>
23 #include <asm/unistd.h>
24 #include <linux/slab.h>
25 #include <linux/quotaops.h>
26 #include <linux/module.h>
27 #include <linux/init.h>
28 #include <linux/quota.h>
30 #include <obd_class.h>
31 #include <lustre_quota.h>
32 #include <lustre_fsfilt.h>
33 #include <lustre_mds.h>
35 #include "quota_internal.h"
38 * mds->mds_qonoff_sem > dquot->dq_sem */
39 static struct list_head lustre_dquot_hash[NR_DQHASH];
40 static spinlock_t dquot_hash_lock = SPIN_LOCK_UNLOCKED;
42 cfs_mem_cache_t *lustre_dquot_cachep;
44 int lustre_dquot_init(void)
49 LASSERT(lustre_dquot_cachep == NULL);
50 lustre_dquot_cachep = cfs_mem_cache_create("lustre_dquot_cache",
51 sizeof(struct lustre_dquot),
53 if (!lustre_dquot_cachep)
56 for (i = 0; i < NR_DQHASH; i++) {
57 INIT_LIST_HEAD(lustre_dquot_hash + i);
62 void lustre_dquot_exit(void)
66 /* FIXME cleanup work ?? */
68 for (i = 0; i < NR_DQHASH; i++) {
69 LASSERT(list_empty(lustre_dquot_hash + i));
71 if (lustre_dquot_cachep) {
73 rc = cfs_mem_cache_destroy(lustre_dquot_cachep);
74 LASSERTF(rc == 0,"couldn't destroy lustre_dquot_cachep slab\n");
75 lustre_dquot_cachep = NULL;
81 dquot_hashfn(struct lustre_quota_info *info, unsigned int id, int type)
82 __attribute__((__const__));
85 dquot_hashfn(struct lustre_quota_info *info, unsigned int id, int type)
87 unsigned long tmp = ((unsigned long)info >> L1_CACHE_SHIFT) ^ id;
88 tmp = (tmp * (MAXQUOTAS - type)) % NR_DQHASH;
92 /* caller must hold dquot_hash_lock */
93 static struct lustre_dquot *find_dquot(int hashent,
94 struct lustre_quota_info *lqi, qid_t id,
97 struct lustre_dquot *dquot;
100 LASSERT_SPIN_LOCKED(&dquot_hash_lock);
101 list_for_each_entry(dquot, &lustre_dquot_hash[hashent], dq_hash) {
102 if (dquot->dq_info == lqi &&
103 dquot->dq_id == id && dquot->dq_type == type)
109 static struct lustre_dquot *alloc_dquot(struct lustre_quota_info *lqi,
112 struct lustre_dquot *dquot = NULL;
115 OBD_SLAB_ALLOC(dquot, lustre_dquot_cachep, CFS_ALLOC_IO, sizeof(*dquot));
119 INIT_LIST_HEAD(&dquot->dq_hash);
120 init_mutex_locked(&dquot->dq_sem);
121 dquot->dq_refcnt = 1;
122 dquot->dq_info = lqi;
124 dquot->dq_type = type;
125 dquot->dq_status = DQ_STATUS_AVAIL;
130 static void free_dquot(struct lustre_dquot *dquot)
132 OBD_SLAB_FREE(dquot, lustre_dquot_cachep, sizeof(*dquot));
135 static void insert_dquot_nolock(struct lustre_dquot *dquot)
137 struct list_head *head = lustre_dquot_hash +
138 dquot_hashfn(dquot->dq_info, dquot->dq_id, dquot->dq_type);
139 LASSERT(list_empty(&dquot->dq_hash));
140 list_add(&dquot->dq_hash, head);
143 static void remove_dquot_nolock(struct lustre_dquot *dquot)
145 LASSERT(!list_empty(&dquot->dq_hash));
146 list_del_init(&dquot->dq_hash);
149 static void lustre_dqput(struct lustre_dquot *dquot)
152 spin_lock(&dquot_hash_lock);
153 LASSERT(dquot->dq_refcnt);
155 if (!dquot->dq_refcnt) {
156 remove_dquot_nolock(dquot);
159 spin_unlock(&dquot_hash_lock);
163 static struct lustre_dquot *lustre_dqget(struct obd_device *obd,
164 struct lustre_quota_info *lqi,
167 unsigned int hashent = dquot_hashfn(lqi, id, type);
168 struct lustre_dquot *dquot, *empty;
171 if ((empty = alloc_dquot(lqi, id, type)) == NULL)
172 RETURN(ERR_PTR(-ENOMEM));
174 spin_lock(&dquot_hash_lock);
175 if ((dquot = find_dquot(hashent, lqi, id, type)) != NULL) {
177 spin_unlock(&dquot_hash_lock);
183 insert_dquot_nolock(dquot);
184 spin_unlock(&dquot_hash_lock);
186 rc = fsfilt_dquot(obd, dquot, QFILE_RD_DQUOT);
189 CERROR("can't read dquot from admin quotafile! "
201 int dqacq_handler(struct obd_device *obd, struct qunit_data *qdata, int opc)
203 struct mds_obd *mds = &obd->u.mds;
204 struct lustre_quota_info *info = &mds->mds_quota_info;
205 struct lustre_dquot *dquot = NULL;
207 __u32 hlimit = 0, slimit = 0;
208 __u32 qdata_type = qdata->qd_flags & QUOTA_IS_GRP;
209 __u32 is_blk = (qdata->qd_flags & QUOTA_IS_BLOCK) >> 1;
211 unsigned int grace = 0;
215 OBD_FAIL_RETURN(OBD_FAIL_OBD_DQACQ, -EIO);
217 /* slaves never acquires qunit for user root */
218 LASSERT(qdata->qd_id || qdata_type);
220 dquot = lustre_dqget(obd, info, qdata->qd_id, qdata_type);
222 RETURN(PTR_ERR(dquot));
224 DQUOT_DEBUG(dquot, "get dquot in dqacq_handler\n");
225 QINFO_DEBUG(dquot->dq_info, "get dquot in dqadq_handler\n");
227 down(&mds->mds_qonoff_sem);
228 down(&dquot->dq_sem);
230 if (dquot->dq_status & DQ_STATUS_RECOVERY) {
231 DQUOT_DEBUG(dquot, "this dquot is under recovering.\n");
232 GOTO(out, rc = -EBUSY);
236 grace = info->qi_info[qdata_type].dqi_bgrace;
237 usage = &dquot->dq_dqb.dqb_curspace;
238 hlimit = dquot->dq_dqb.dqb_bhardlimit;
239 slimit = dquot->dq_dqb.dqb_bsoftlimit;
240 time = &dquot->dq_dqb.dqb_btime;
242 grace = info->qi_info[qdata_type].dqi_igrace;
243 usage = (__u64 *) & dquot->dq_dqb.dqb_curinodes;
244 hlimit = dquot->dq_dqb.dqb_ihardlimit;
245 slimit = dquot->dq_dqb.dqb_isoftlimit;
246 time = &dquot->dq_dqb.dqb_itime;
249 /* if the quota limit in admin quotafile is zero, we just inform
250 * slave to clear quota limit with zero qd_count */
251 if (hlimit == 0 && slimit == 0) {
259 QUSG(*usage + qdata->qd_count, is_blk) > hlimit)
260 GOTO(out, rc = -EDQUOT);
263 QUSG(*usage + qdata->qd_count, is_blk) > slimit) {
264 if (*time && cfs_time_current_sec() >= *time)
265 GOTO(out, rc = -EDQUOT);
267 *time = cfs_time_current_sec() + grace;
270 *usage += qdata->qd_count;
273 /* The usage in administrative file might be incorrect before
275 if (*usage - qdata->qd_count < 0)
278 *usage -= qdata->qd_count;
280 /* (usage <= soft limit) but not (usage < soft limit) */
281 if (!slimit || QUSG(*usage, is_blk) <= slimit)
288 rc = fsfilt_dquot(obd, dquot, QFILE_WR_DQUOT);
292 up(&mds->mds_qonoff_sem);
297 int mds_quota_adjust(struct obd_device *obd, unsigned int qcids[],
298 unsigned int qpids[], int rc, int opc)
300 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
304 if (rc && rc != -EDQUOT)
308 case FSFILT_OP_RENAME:
309 /* acquire/release block quota on owner of original parent */
310 rc2 = qctxt_adjust_qunit(obd, qctxt, qpids[2], qpids[3], 1, 0);
312 case FSFILT_OP_SETATTR:
313 /* acquire/release file quota on original owner */
314 rc2 |= qctxt_adjust_qunit(obd, qctxt, qpids[0], qpids[1], 0, 0);
316 case FSFILT_OP_CREATE:
317 case FSFILT_OP_UNLINK:
318 /* acquire/release file/block quota on owner of child (or current owner) */
319 rc2 |= qctxt_adjust_qunit(obd, qctxt, qcids[0], qcids[1], 0, 0);
320 rc2 |= qctxt_adjust_qunit(obd, qctxt, qcids[0], qcids[1], 1, 0);
321 /* acquire/release block quota on owner of parent (or original owner) */
322 rc2 |= qctxt_adjust_qunit(obd, qctxt, qpids[0], qpids[1], 1, 0);
330 CERROR("mds adjust qunit failed! (opc:%d rc:%d)\n", opc, rc2);
334 int filter_quota_adjust(struct obd_device *obd, unsigned int qcids[],
335 unsigned int qpids[], int rc, int opc)
337 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
341 if (rc && rc != -EDQUOT && rc != ENOLCK)
345 case FSFILT_OP_SETATTR:
346 /* acquire/release block quota on original & current owner */
347 rc = qctxt_adjust_qunit(obd, qctxt, qcids[0], qcids[1], 1, 0);
348 rc2 = qctxt_adjust_qunit(obd, qctxt, qpids[0], qpids[1], 1, 0);
350 case FSFILT_OP_UNLINK:
351 /* release block quota on this owner */
352 case FSFILT_OP_CREATE: /* XXX for write operation on obdfilter */
353 /* acquire block quota on this owner */
354 rc = qctxt_adjust_qunit(obd, qctxt, qcids[0], qcids[1], 1, 0);
362 CERROR("filter adjust qunit failed! (opc:%d rc%d)\n",
367 #define LUSTRE_ADMIN_QUOTAFILES {\
368 "admin_quotafile.usr", /* user admin quotafile */\
369 "admin_quotafile.grp" /* group admin quotafile */\
371 static const char prefix[] = "OBJECTS/";
373 int init_admin_quotafiles(struct obd_device *obd, struct obd_quotactl *oqctl)
375 struct mds_obd *mds = &obd->u.mds;
376 struct lustre_quota_info *qinfo = &mds->mds_quota_info;
377 const char *quotafiles[] = LUSTRE_ADMIN_QUOTAFILES;
378 struct lvfs_run_ctxt saved;
381 struct dentry *dparent = mds->mds_objects_dir;
382 struct inode *iparent = dparent->d_inode;
386 push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
388 down(&mds->mds_qonoff_sem);
389 for (i = 0; i < MAXQUOTAS; i++) {
393 if (!Q_TYPESET(oqctl, i))
396 /* quota file has been opened ? */
397 if (qinfo->qi_files[i]) {
398 CWARN("init %s admin quotafile while quota on.\n",
399 i == USRQUOTA ? "user" : "group");
403 /* lookup quota file */
405 LOCK_INODE_MUTEX(iparent);
406 de = lookup_one_len(quotafiles[i], dparent,
407 strlen(quotafiles[i]));
408 UNLOCK_INODE_MUTEX(iparent);
409 if (IS_ERR(de) || de->d_inode == NULL ||
410 !S_ISREG(de->d_inode->i_mode))
411 rc = IS_ERR(de) ? PTR_ERR(de) : -ENOENT;
415 if (rc && rc != -ENOENT) {
416 CERROR("error lookup quotafile %s! (rc:%d)\n",
423 LASSERT(strlen(quotafiles[i]) + sizeof(prefix) <= sizeof(name));
424 sprintf(name, "%s%s", prefix, quotafiles[i]);
426 LASSERT(rc == -ENOENT);
427 /* create quota file */
428 fp = filp_open(name, O_CREAT | O_EXCL, 0644);
429 if (IS_ERR(fp) || !S_ISREG(fp->f_dentry->d_inode->i_mode)) {
431 CERROR("error creating admin quotafile %s (rc:%d)\n",
436 qinfo->qi_files[i] = fp;
437 rc = fsfilt_quotainfo(obd, qinfo, i, QFILE_INIT_INFO);
439 qinfo->qi_files[i] = NULL;
442 CERROR("error init %s admin quotafile! (rc:%d)\n",
443 i == USRQUOTA ? "user" : "group", rc);
447 up(&mds->mds_qonoff_sem);
449 pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
453 static int close_quota_files(struct obd_quotactl *oqctl,
454 struct lustre_quota_info *qinfo)
459 for (i = 0; i < MAXQUOTAS; i++) {
460 if (!Q_TYPESET(oqctl, i))
462 if (qinfo->qi_files[i] == NULL) {
466 filp_close(qinfo->qi_files[i], 0);
467 qinfo->qi_files[i] = NULL;
472 int mds_admin_quota_on(struct obd_device *obd, struct obd_quotactl *oqctl)
474 struct mds_obd *mds = &obd->u.mds;
475 struct lustre_quota_info *qinfo = &mds->mds_quota_info;
476 const char *quotafiles[] = LUSTRE_ADMIN_QUOTAFILES;
479 struct inode *iparent = mds->mds_objects_dir->d_inode;
484 /* open admin quota files and read quotafile info */
485 for (i = 0; i < MAXQUOTAS; i++) {
488 if (!Q_TYPESET(oqctl, i))
491 LASSERT(strlen(quotafiles[i]) + sizeof(prefix) <= sizeof(name));
492 sprintf(name, "%s%s", prefix, quotafiles[i]);
494 if (qinfo->qi_files[i] != NULL) {
499 fp = filp_open(name, O_RDWR | O_EXCL, 0644);
500 if (IS_ERR(fp) || !S_ISREG(fp->f_dentry->d_inode->i_mode)) {
502 CDEBUG(rc == -ENOENT ? D_QUOTA : D_ERROR,
503 "open %s failed! (rc:%d)\n", name, rc);
506 qinfo->qi_files[i] = fp;
508 rc = fsfilt_quotainfo(obd, qinfo, i, QFILE_RD_INFO);
510 CERROR("error read quotainfo of %s! (rc:%d)\n",
516 if (rc && rc != -EBUSY)
517 close_quota_files(oqctl, qinfo);
522 static int mds_admin_quota_off(struct obd_device *obd,
523 struct obd_quotactl *oqctl)
525 struct mds_obd *mds = &obd->u.mds;
526 struct lustre_quota_info *qinfo = &mds->mds_quota_info;
530 /* close admin quota files */
531 rc = close_quota_files(oqctl, qinfo);
535 int mds_quota_on(struct obd_device *obd, struct obd_quotactl *oqctl)
537 struct mds_obd *mds = &obd->u.mds;
538 struct obd_device_target *obt = &obd->u.obt;
539 struct lvfs_run_ctxt saved;
543 if (!atomic_dec_and_test(&obt->obt_quotachecking)) {
544 CDEBUG(D_INFO, "other people are doing quotacheck\n");
545 atomic_inc(&obt->obt_quotachecking);
549 down(&mds->mds_qonoff_sem);
550 push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
551 rc = mds_admin_quota_on(obd, oqctl);
555 rc = obd_quotactl(mds->mds_osc_exp, oqctl);
559 rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, oqctl);
561 obt->obt_qctxt.lqc_status = 1;
563 pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
564 up(&mds->mds_qonoff_sem);
565 atomic_inc(&obt->obt_quotachecking);
569 int mds_quota_off(struct obd_device *obd, struct obd_quotactl *oqctl)
571 struct mds_obd *mds = &obd->u.mds;
572 struct obd_device_target *obt = &obd->u.obt;
573 struct lvfs_run_ctxt saved;
577 if (!atomic_dec_and_test(&obt->obt_quotachecking)) {
578 CDEBUG(D_INFO, "other people are doing quotacheck\n");
579 atomic_inc(&obt->obt_quotachecking);
583 down(&mds->mds_qonoff_sem);
584 /* close admin quota files */
585 push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
586 mds_admin_quota_off(obd, oqctl);
588 rc = obd_quotactl(mds->mds_osc_exp, oqctl);
589 rc2 = fsfilt_quotactl(obd, obd->u.obt.obt_sb, oqctl);
591 obt->obt_qctxt.lqc_status = 0;
593 pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
594 up(&mds->mds_qonoff_sem);
595 atomic_inc(&obt->obt_quotachecking);
600 int mds_set_dqinfo(struct obd_device *obd, struct obd_quotactl *oqctl)
602 struct mds_obd *mds = &obd->u.mds;
603 struct lustre_quota_info *qinfo = &mds->mds_quota_info;
604 struct obd_dqinfo *dqinfo = &oqctl->qc_dqinfo;
608 down(&mds->mds_qonoff_sem);
609 if (qinfo->qi_files[oqctl->qc_type] == NULL) {
614 qinfo->qi_info[oqctl->qc_type].dqi_bgrace = dqinfo->dqi_bgrace;
615 qinfo->qi_info[oqctl->qc_type].dqi_igrace = dqinfo->dqi_igrace;
616 qinfo->qi_info[oqctl->qc_type].dqi_flags = dqinfo->dqi_flags;
618 rc = fsfilt_quotainfo(obd, qinfo, oqctl->qc_type, QFILE_WR_INFO);
621 up(&mds->mds_qonoff_sem);
625 int mds_get_dqinfo(struct obd_device *obd, struct obd_quotactl *oqctl)
627 struct mds_obd *mds = &obd->u.mds;
628 struct lustre_quota_info *qinfo = &mds->mds_quota_info;
629 struct obd_dqinfo *dqinfo = &oqctl->qc_dqinfo;
633 down(&mds->mds_qonoff_sem);
634 if (qinfo->qi_files[oqctl->qc_type] == NULL) {
639 dqinfo->dqi_bgrace = qinfo->qi_info[oqctl->qc_type].dqi_bgrace;
640 dqinfo->dqi_igrace = qinfo->qi_info[oqctl->qc_type].dqi_igrace;
641 dqinfo->dqi_flags = qinfo->qi_info[oqctl->qc_type].dqi_flags;
644 up(&mds->mds_qonoff_sem);
648 static int mds_init_slave_ilimits(struct obd_device *obd,
649 struct obd_quotactl *oqctl, int set)
651 /* XXX: for file limits only adjust local now */
652 unsigned int uid = 0, gid = 0;
653 struct obd_quotactl *ioqc = NULL;
657 /* if we are going to set zero limit, needn't init slaves */
658 if (!oqctl->qc_dqblk.dqb_ihardlimit && !oqctl->qc_dqblk.dqb_isoftlimit)
668 ioqc->qc_cmd = Q_INITQUOTA;
669 ioqc->qc_id = oqctl->qc_id;
670 ioqc->qc_type = oqctl->qc_type;
671 ioqc->qc_dqblk.dqb_valid = QIF_ILIMITS;
672 ioqc->qc_dqblk.dqb_ihardlimit = MIN_QLIMIT;
674 /* set local limit to MIN_QLIMIT */
675 rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, ioqc);
679 /* trigger local qunit pre-acquire */
680 if (oqctl->qc_type == USRQUOTA)
685 rc = qctxt_adjust_qunit(obd, &obd->u.obt.obt_qctxt, uid, gid, 0, 0);
687 CERROR("error mds adjust local file quota! (rc:%d)\n", rc);
690 /* FIXME initialize all slaves in CMD */
698 static int mds_init_slave_blimits(struct obd_device *obd,
699 struct obd_quotactl *oqctl, int set)
701 struct mds_obd *mds = &obd->u.mds;
702 struct obd_quotactl *ioqc;
703 unsigned int uid = 0, gid = 0;
707 /* if we are going to set zero limit, needn't init slaves */
708 if (!oqctl->qc_dqblk.dqb_bhardlimit && !oqctl->qc_dqblk.dqb_bsoftlimit)
715 ioqc->qc_cmd = Q_INITQUOTA;
716 ioqc->qc_id = oqctl->qc_id;
717 ioqc->qc_type = oqctl->qc_type;
718 ioqc->qc_dqblk.dqb_valid = QIF_BLIMITS;
719 ioqc->qc_dqblk.dqb_bhardlimit = set ? MIN_QLIMIT : 0;
721 /* set local limit to MIN_QLIMIT */
723 rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, ioqc);
728 /* trigger local qunit pre-acquire */
729 if (oqctl->qc_type == USRQUOTA)
734 rc = qctxt_adjust_qunit(obd, &obd->u.obt.obt_qctxt, uid, gid, 1, 0);
736 CERROR("error mds adjust local block quota! (rc:%d)\n", rc);
740 /* initialize all slave's limit */
741 rc = obd_quotactl(mds->mds_osc_exp, ioqc);
748 int mds_set_dqblk(struct obd_device *obd, struct obd_quotactl *oqctl)
750 struct mds_obd *mds = &obd->u.mds;
751 struct lustre_quota_info *qinfo = &mds->mds_quota_info;
752 __u32 ihardlimit, isoftlimit, bhardlimit, bsoftlimit;
754 struct lustre_dquot *dquot;
755 struct obd_dqblk *dqblk = &oqctl->qc_dqblk;
759 down(&mds->mds_qonoff_sem);
760 if (qinfo->qi_files[oqctl->qc_type] == NULL)
761 GOTO(out_sem, rc = -ESRCH);
763 dquot = lustre_dqget(obd, qinfo, oqctl->qc_id, oqctl->qc_type);
765 GOTO(out_sem, rc = PTR_ERR(dquot));
766 DQUOT_DEBUG(dquot, "get dquot in mds_set_blk\n");
767 QINFO_DEBUG(dquot->dq_info, "get dquot in mds_set_blk\n");
769 down(&dquot->dq_sem);
771 if (dquot->dq_status) {
774 GOTO(out_sem, rc = -EBUSY);
776 dquot->dq_status |= DQ_STATUS_SET;
778 ihardlimit = dquot->dq_dqb.dqb_ihardlimit;
779 isoftlimit = dquot->dq_dqb.dqb_isoftlimit;
780 bhardlimit = dquot->dq_dqb.dqb_bhardlimit;
781 bsoftlimit = dquot->dq_dqb.dqb_bsoftlimit;
782 btime = dquot->dq_dqb.dqb_btime;
783 itime = dquot->dq_dqb.dqb_itime;
785 if (dqblk->dqb_valid & QIF_BTIME)
786 dquot->dq_dqb.dqb_btime = dqblk->dqb_btime;
787 if (dqblk->dqb_valid & QIF_ITIME)
788 dquot->dq_dqb.dqb_itime = dqblk->dqb_itime;
790 if (dqblk->dqb_valid & QIF_BLIMITS) {
791 dquot->dq_dqb.dqb_bhardlimit = dqblk->dqb_bhardlimit;
792 dquot->dq_dqb.dqb_bsoftlimit = dqblk->dqb_bsoftlimit;
793 /* clear usage (limit pool) */
794 if (!dquot->dq_dqb.dqb_bhardlimit &&
795 !dquot->dq_dqb.dqb_bsoftlimit)
796 dquot->dq_dqb.dqb_curspace = 0;
798 /* clear grace time */
799 if (!dqblk->dqb_bsoftlimit ||
800 toqb(dquot->dq_dqb.dqb_curspace) <= dqblk->dqb_bsoftlimit)
801 dquot->dq_dqb.dqb_btime = 0;
802 /* set grace only if user hasn't provided his own */
803 else if (!(dqblk->dqb_valid & QIF_BTIME))
804 dquot->dq_dqb.dqb_btime = cfs_time_current_sec() +
805 qinfo->qi_info[dquot->dq_type].dqi_bgrace;
808 if (dqblk->dqb_valid & QIF_ILIMITS) {
809 dquot->dq_dqb.dqb_ihardlimit = dqblk->dqb_ihardlimit;
810 dquot->dq_dqb.dqb_isoftlimit = dqblk->dqb_isoftlimit;
811 /* clear usage (limit pool) */
812 if (!dquot->dq_dqb.dqb_ihardlimit &&
813 !dquot->dq_dqb.dqb_isoftlimit)
814 dquot->dq_dqb.dqb_curinodes = 0;
816 if (!dqblk->dqb_isoftlimit ||
817 dquot->dq_dqb.dqb_curinodes <= dqblk->dqb_isoftlimit)
818 dquot->dq_dqb.dqb_itime = 0;
819 else if (!(dqblk->dqb_valid & QIF_ITIME))
820 dquot->dq_dqb.dqb_itime = cfs_time_current_sec() +
821 qinfo->qi_info[dquot->dq_type].dqi_igrace;
824 rc = fsfilt_dquot(obd, dquot, QFILE_WR_DQUOT);
829 CERROR("set limit failed! (rc:%d)\n", rc);
833 up(&mds->mds_qonoff_sem);
834 if (dqblk->dqb_valid & QIF_ILIMITS) {
835 set = !(ihardlimit || isoftlimit);
836 rc = mds_init_slave_ilimits(obd, oqctl, set);
838 CERROR("init slave ilimits failed! (rc:%d)\n", rc);
843 if (dqblk->dqb_valid & QIF_BLIMITS) {
844 set = !(bhardlimit || bsoftlimit);
845 rc = mds_init_slave_blimits(obd, oqctl, set);
847 CERROR("init slave blimits failed! (rc:%d)\n", rc);
851 down(&mds->mds_qonoff_sem);
855 /* cancel previous setting */
856 down(&dquot->dq_sem);
857 dquot->dq_dqb.dqb_ihardlimit = ihardlimit;
858 dquot->dq_dqb.dqb_isoftlimit = isoftlimit;
859 dquot->dq_dqb.dqb_bhardlimit = bhardlimit;
860 dquot->dq_dqb.dqb_bsoftlimit = bsoftlimit;
861 dquot->dq_dqb.dqb_btime = btime;
862 dquot->dq_dqb.dqb_itime = itime;
863 fsfilt_dquot(obd, dquot, QFILE_WR_DQUOT);
867 down(&dquot->dq_sem);
868 dquot->dq_status &= ~DQ_STATUS_SET;
873 up(&mds->mds_qonoff_sem);
877 static int mds_get_space(struct obd_device *obd, struct obd_quotactl *oqctl)
879 struct obd_quotactl *soqc;
880 struct lvfs_run_ctxt saved;
888 soqc->qc_cmd = Q_GETOQUOTA;
889 soqc->qc_id = oqctl->qc_id;
890 soqc->qc_type = oqctl->qc_type;
892 rc = obd_quotactl(obd->u.mds.mds_osc_exp, soqc);
896 oqctl->qc_dqblk.dqb_curspace = soqc->qc_dqblk.dqb_curspace;
898 push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
899 soqc->qc_dqblk.dqb_curspace = 0;
900 rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, soqc);
901 pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
906 oqctl->qc_dqblk.dqb_curinodes += soqc->qc_dqblk.dqb_curinodes;
907 oqctl->qc_dqblk.dqb_curspace += soqc->qc_dqblk.dqb_curspace;
914 int mds_get_dqblk(struct obd_device *obd, struct obd_quotactl *oqctl)
916 struct mds_obd *mds = &obd->u.mds;
917 struct lustre_quota_info *qinfo = &mds->mds_quota_info;
918 struct lustre_dquot *dquot;
919 struct obd_dqblk *dqblk = &oqctl->qc_dqblk;
923 down(&mds->mds_qonoff_sem);
924 if (qinfo->qi_files[oqctl->qc_type] == NULL)
925 GOTO(out, rc = -ESRCH);
927 dquot = lustre_dqget(obd, qinfo, oqctl->qc_id, oqctl->qc_type);
929 GOTO(out, rc = PTR_ERR(dquot));
931 down(&dquot->dq_sem);
932 dqblk->dqb_ihardlimit = dquot->dq_dqb.dqb_ihardlimit;
933 dqblk->dqb_isoftlimit = dquot->dq_dqb.dqb_isoftlimit;
934 dqblk->dqb_bhardlimit = dquot->dq_dqb.dqb_bhardlimit;
935 dqblk->dqb_bsoftlimit = dquot->dq_dqb.dqb_bsoftlimit;
936 dqblk->dqb_btime = dquot->dq_dqb.dqb_btime;
937 dqblk->dqb_itime = dquot->dq_dqb.dqb_itime;
942 /* the usages in admin quota file is inaccurate */
943 dqblk->dqb_curinodes = 0;
944 dqblk->dqb_curspace = 0;
945 rc = mds_get_space(obd, oqctl);
948 up(&mds->mds_qonoff_sem);
952 int mds_get_obd_quota(struct obd_device *obd, struct obd_quotactl *oqctl)
954 struct lvfs_run_ctxt saved;
958 push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
959 rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, oqctl);
960 pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
966 /* FIXME we only recovery block limit by now, need recovery inode
967 * limits also after CMD involved in */
969 dquot_recovery(struct obd_device *obd, unsigned int id, unsigned short type)
971 struct mds_obd *mds = &obd->u.mds;
972 struct lustre_quota_info *qinfo= &obd->u.mds.mds_quota_info;
973 struct lustre_dquot *dquot;
974 struct obd_quotactl *qctl;
975 __u64 total_limits = 0;
983 dquot = lustre_dqget(obd, qinfo, id, type);
985 CERROR("Get dquot failed. (rc:%ld)\n", PTR_ERR(dquot));
987 RETURN(PTR_ERR(dquot));
990 down(&dquot->dq_sem);
992 /* don't recovery the dquot without limits or under setting */
993 if (!(dquot->dq_dqb.dqb_bhardlimit || dquot->dq_dqb.dqb_bsoftlimit) ||
996 dquot->dq_status |= DQ_STATUS_RECOVERY;
1000 /* get real bhardlimit from all slaves. */
1001 qctl->qc_cmd = Q_GETOQUOTA;
1002 qctl->qc_type = type;
1004 qctl->qc_stat = QUOTA_RECOVERING;
1005 rc = obd_quotactl(obd->u.mds.mds_osc_exp, qctl);
1008 total_limits = qctl->qc_dqblk.dqb_bhardlimit;
1010 /* get real bhardlimit from master */
1011 rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, qctl);
1014 total_limits += qctl->qc_dqblk.dqb_bhardlimit;
1016 /* amend the usage of the administrative quotafile */
1017 down(&mds->mds_qonoff_sem);
1018 down(&dquot->dq_sem);
1020 dquot->dq_dqb.dqb_curspace = total_limits << QUOTABLOCK_BITS;
1022 rc = fsfilt_dquot(obd, dquot, QFILE_WR_DQUOT);
1024 CERROR("write dquot failed! (rc:%d)\n", rc);
1027 up(&mds->mds_qonoff_sem);
1030 down(&dquot->dq_sem);
1031 dquot->dq_status &= ~DQ_STATUS_RECOVERY;
1035 lustre_dqput(dquot);
1040 struct qmaster_recov_thread_data {
1041 struct obd_device *obd;
1042 struct completion comp;
1045 static int qmaster_recovery_main(void *arg)
1047 struct qmaster_recov_thread_data *data = arg;
1048 struct obd_device *obd = data->obd;
1050 unsigned short type;
1053 ptlrpc_daemonize("qmaster_recovd");
1055 complete(&data->comp);
1057 for (type = USRQUOTA; type < MAXQUOTAS; type++) {
1058 struct mds_obd *mds = &obd->u.mds;
1059 struct lustre_quota_info *qinfo = &mds->mds_quota_info;
1060 struct list_head id_list;
1061 struct dquot_id *dqid, *tmp;
1063 down(&mds->mds_qonoff_sem);
1064 if (qinfo->qi_files[type] == NULL) {
1065 up(&mds->mds_qonoff_sem);
1068 INIT_LIST_HEAD(&id_list);
1069 rc = fsfilt_qids(obd, qinfo->qi_files[type], NULL, type,
1071 up(&mds->mds_qonoff_sem);
1074 CERROR("error get ids from admin quotafile.(%d)\n", rc);
1076 list_for_each_entry_safe(dqid, tmp, &id_list, di_link) {
1077 list_del_init(&dqid->di_link);
1081 rc = dquot_recovery(obd, dqid->di_id, type);
1083 CERROR("qmaster recovery failed! (id:%d type:%d"
1084 " rc:%d)\n", dqid->di_id, type, rc);
1092 int mds_quota_recovery(struct obd_device *obd)
1094 struct lov_obd *lov = &obd->u.mds.mds_osc_obd->u.lov;
1095 struct qmaster_recov_thread_data data;
1099 mutex_down(&lov->lov_lock);
1100 if (lov->desc.ld_tgt_count != lov->desc.ld_active_tgt_count) {
1101 CWARN("Not all osts are active, abort quota recovery\n");
1102 mutex_up(&lov->lov_lock);
1105 mutex_up(&lov->lov_lock);
1108 init_completion(&data.comp);
1110 rc = kernel_thread(qmaster_recovery_main, &data, CLONE_VM|CLONE_FILES);
1112 CERROR("Cannot start quota recovery thread: rc %d\n", rc);
1114 wait_for_completion(&data.comp);