4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
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18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
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30 * Copyright (c) 2011, 2012, Whamcloud, Inc.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
37 #define DEBUG_SUBSYSTEM S_LQUOTA
40 # include <linux/version.h>
41 # include <linux/module.h>
42 # include <linux/init.h>
43 # include <linux/fs.h>
44 # include <linux/jbd.h>
45 # include <linux/quota.h>
46 # include <linux/smp_lock.h>
47 # include <linux/buffer_head.h>
48 # include <linux/workqueue.h>
49 # include <linux/mount.h>
50 #else /* __KERNEL__ */
51 # include <liblustre.h>
54 #include <obd_class.h>
55 #include <lustre_mds.h>
56 #include <lustre_dlm.h>
57 #include <lustre_cfg.h>
59 #include <lustre_fsfilt.h>
60 #include <lustre_quota.h>
61 #include "quota_internal.h"
65 int mds_quota_ctl(struct obd_device *obd, struct obd_export *unused,
66 struct obd_quotactl *oqctl)
68 struct obd_device_target *obt = &obd->u.obt;
69 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
70 struct timeval work_start;
71 struct timeval work_end;
76 cfs_gettimeofday(&work_start);
77 switch (oqctl->qc_cmd) {
79 oqctl->qc_id = obt->obt_qfmt; /* override qfmt version */
80 rc = mds_quota_on(obd, oqctl);
83 oqctl->qc_id = obt->obt_qfmt; /* override qfmt version */
84 rc = mds_quota_off(obd, oqctl);
87 rc = mds_set_dqinfo(obd, oqctl);
90 rc = mds_get_dqinfo(obd, oqctl);
93 rc = mds_set_dqblk(obd, oqctl);
96 rc = mds_get_dqblk(obd, oqctl);
100 rc = mds_get_obd_quota(obd, oqctl);
102 case LUSTRE_Q_INVALIDATE:
103 rc = mds_quota_invalidate(obd, oqctl);
105 case LUSTRE_Q_FINVALIDATE:
106 oqctl->qc_id = obt->obt_qfmt; /* override qfmt version */
107 rc = mds_quota_finvalidate(obd, oqctl);
110 CERROR("%s: unsupported mds_quotactl command: %d\n",
111 obd->obd_name, oqctl->qc_cmd);
116 CDEBUG(D_INFO, "mds_quotactl admin quota command %d, id %u, "
117 "type %d, failed: rc = %d\n",
118 oqctl->qc_cmd, oqctl->qc_id, oqctl->qc_type, rc);
119 cfs_gettimeofday(&work_end);
120 timediff = cfs_timeval_sub(&work_end, &work_start, NULL);
121 lprocfs_counter_add(qctxt->lqc_stats, LQUOTA_QUOTA_CTL, timediff);
126 int filter_quota_ctl(struct obd_device *unused, struct obd_export *exp,
127 struct obd_quotactl *oqctl)
129 struct obd_device *obd = exp->exp_obd;
130 struct obd_device_target *obt = &obd->u.obt;
131 struct lvfs_run_ctxt saved;
132 struct lustre_quota_ctxt *qctxt = &obt->obt_qctxt;
133 struct lustre_qunit_size *lqs;
135 struct timeval work_start;
136 struct timeval work_end;
141 cfs_gettimeofday(&work_start);
142 switch (oqctl->qc_cmd) {
144 oqctl->qc_id = obt->obt_qfmt;
145 rc = generic_quota_on(obd, oqctl, 0);
149 cfs_down(&obt->obt_quotachecking);
150 if (oqctl->qc_cmd == Q_FINVALIDATE &&
151 (obt->obt_qctxt.lqc_flags & UGQUOTA2LQC(oqctl->qc_type))) {
152 CWARN("quota[%u] is on yet\n", oqctl->qc_type);
153 cfs_up(&obt->obt_quotachecking);
157 oqctl->qc_id = obt->obt_qfmt; /* override qfmt version */
161 /* In recovery scenario, this pending dqacq/dqrel might have
162 * been processed by master successfully before it's dquot
163 * on master enter recovery mode. We must wait for this
164 * dqacq/dqrel done then return the correct limits to master */
165 if (oqctl->qc_stat == QUOTA_RECOVERING)
166 handle = quota_barrier(&obd->u.obt.obt_qctxt, oqctl, 1);
168 push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
169 rc = fsfilt_quotactl(obd, obt->obt_sb, oqctl);
170 pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
172 if (oqctl->qc_stat == QUOTA_RECOVERING)
173 quota_unbarrier(handle);
175 if (oqctl->qc_cmd == Q_QUOTAOFF ||
176 oqctl->qc_cmd == Q_FINVALIDATE) {
177 if (oqctl->qc_cmd == Q_QUOTAOFF) {
179 obt->obt_qctxt.lqc_flags &=
180 ~UGQUOTA2LQC(oqctl->qc_type);
181 else if (quota_is_off(qctxt, oqctl))
183 CDEBUG(D_QUOTA, "%s: quotaoff type:flags:rc "
184 "%u:%lu:%d\n", obd->obd_name,
185 oqctl->qc_type, qctxt->lqc_flags, rc);
187 cfs_up(&obt->obt_quotachecking);
192 /* currently, it is only used for nullifying the quota */
193 handle = quota_barrier(&obd->u.obt.obt_qctxt, oqctl, 1);
195 push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
196 rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, oqctl);
199 oqctl->qc_cmd = Q_SYNC;
200 fsfilt_quotactl(obd, obd->u.obt.obt_sb, oqctl);
201 oqctl->qc_cmd = Q_SETQUOTA;
203 pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
204 quota_unbarrier(handle);
206 lqs = quota_search_lqs(LQS_KEY(oqctl->qc_type, oqctl->qc_id),
208 if (lqs == NULL || IS_ERR(lqs)){
209 CERROR("fail to create lqs during setquota operation "
210 "for %sid %u\n", oqctl->qc_type ? "g" : "u",
213 lqs->lqs_flags &= ~QB_SET;
220 unsigned int id[MAXQUOTAS] = { 0, 0 };
222 /* Initialize quota limit to MIN_QLIMIT */
223 LASSERT(oqctl->qc_dqblk.dqb_valid == QIF_BLIMITS);
224 LASSERT(oqctl->qc_dqblk.dqb_bsoftlimit == 0);
226 if (!oqctl->qc_dqblk.dqb_bhardlimit)
229 /* There might be a pending dqacq/dqrel (which is going to
230 * clear stale limits on slave). we should wait for it's
231 * completion then initialize limits */
232 handle = quota_barrier(&obd->u.obt.obt_qctxt, oqctl, 1);
233 LASSERT(oqctl->qc_dqblk.dqb_bhardlimit == MIN_QLIMIT);
234 push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
235 rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, oqctl);
237 /* Update on-disk quota, in case of lose the changed limits
238 * (MIN_QLIMIT) on crash, which cannot be recovered.*/
240 oqctl->qc_cmd = Q_SYNC;
241 fsfilt_quotactl(obd, obd->u.obt.obt_sb, oqctl);
242 oqctl->qc_cmd = Q_INITQUOTA;
244 pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
245 quota_unbarrier(handle);
250 lqs = quota_search_lqs(LQS_KEY(oqctl->qc_type, oqctl->qc_id),
252 if (lqs == NULL || IS_ERR(lqs)){
253 CERROR("fail to create lqs during setquota operation "
254 "for %sid %u\n", oqctl->qc_type ? "g" : "u",
258 lqs->lqs_flags |= QB_SET;
262 /* Trigger qunit pre-acquire */
263 if (oqctl->qc_type == USRQUOTA)
264 id[USRQUOTA] = oqctl->qc_id;
266 id[GRPQUOTA] = oqctl->qc_id;
268 rc = qctxt_adjust_qunit(obd, &obd->u.obt.obt_qctxt,
270 if (rc == -EDQUOT || rc == -EBUSY) {
271 CDEBUG(D_QUOTA, "rc: %d.\n", rc);
278 CERROR("%s: unsupported filter_quotactl command: %d\n",
279 obd->obd_name, oqctl->qc_cmd);
282 cfs_gettimeofday(&work_end);
283 timediff = cfs_timeval_sub(&work_end, &work_start, NULL);
284 lprocfs_counter_add(qctxt->lqc_stats, LQUOTA_QUOTA_CTL, timediff);
288 #endif /* __KERNEL__ */