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).
16 * You should have received a copy of the GNU General Public License
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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.
28 * Use is subject to license terms.
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/buffer_head.h>
47 # include <linux/workqueue.h>
48 # include <linux/mount.h>
49 #else /* __KERNEL__ */
50 # include <liblustre.h>
53 #include <obd_class.h>
54 #include <lustre_mds.h>
55 #include <lustre_dlm.h>
56 #include <lustre_cfg.h>
58 #include <lustre_fsfilt.h>
59 #include <lustre_quota.h>
60 #include "quota_internal.h"
64 int mds_quota_ctl(struct obd_device *obd, struct obd_export *unused,
65 struct obd_quotactl *oqctl)
67 struct obd_device_target *obt = &obd->u.obt;
68 struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
69 struct timeval work_start;
70 struct timeval work_end;
75 cfs_gettimeofday(&work_start);
76 switch (oqctl->qc_cmd) {
78 oqctl->qc_id = obt->obt_qfmt; /* override qfmt version */
79 rc = mds_quota_on(obd, oqctl);
82 oqctl->qc_id = obt->obt_qfmt; /* override qfmt version */
83 rc = mds_quota_off(obd, oqctl);
86 rc = mds_set_dqinfo(obd, oqctl);
89 rc = mds_get_dqinfo(obd, oqctl);
92 rc = mds_set_dqblk(obd, oqctl);
95 rc = mds_get_dqblk(obd, oqctl);
99 rc = mds_get_obd_quota(obd, oqctl);
101 case LUSTRE_Q_INVALIDATE:
102 rc = mds_quota_invalidate(obd, oqctl);
104 case LUSTRE_Q_FINVALIDATE:
105 oqctl->qc_id = obt->obt_qfmt; /* override qfmt version */
106 rc = mds_quota_finvalidate(obd, oqctl);
109 CERROR("%s: unsupported mds_quotactl command: %d\n",
110 obd->obd_name, oqctl->qc_cmd);
115 CDEBUG(D_INFO, "mds_quotactl admin quota command %d, id %u, "
116 "type %d, failed: rc = %d\n",
117 oqctl->qc_cmd, oqctl->qc_id, oqctl->qc_type, rc);
118 cfs_gettimeofday(&work_end);
119 timediff = cfs_timeval_sub(&work_end, &work_start, NULL);
120 lprocfs_counter_add(qctxt->lqc_stats, LQUOTA_QUOTA_CTL, timediff);
125 int filter_quota_ctl(struct obd_device *unused, struct obd_export *exp,
126 struct obd_quotactl *oqctl)
128 struct obd_device *obd = exp->exp_obd;
129 struct obd_device_target *obt = &obd->u.obt;
130 struct lvfs_run_ctxt saved;
131 struct lustre_quota_ctxt *qctxt = &obt->obt_qctxt;
132 struct lustre_qunit_size *lqs;
134 struct timeval work_start;
135 struct timeval work_end;
140 cfs_gettimeofday(&work_start);
141 switch (oqctl->qc_cmd) {
143 oqctl->qc_id = obt->obt_qfmt;
144 rc = generic_quota_on(obd, oqctl, 0);
148 cfs_down(&obt->obt_quotachecking);
149 if (oqctl->qc_cmd == Q_FINVALIDATE &&
150 (obt->obt_qctxt.lqc_flags & UGQUOTA2LQC(oqctl->qc_type))) {
151 CWARN("quota[%u] is on yet\n", oqctl->qc_type);
152 cfs_up(&obt->obt_quotachecking);
156 oqctl->qc_id = obt->obt_qfmt; /* override qfmt version */
160 /* In recovery scenario, this pending dqacq/dqrel might have
161 * been processed by master successfully before it's dquot
162 * on master enter recovery mode. We must wait for this
163 * dqacq/dqrel done then return the correct limits to master */
164 if (oqctl->qc_stat == QUOTA_RECOVERING)
165 handle = quota_barrier(&obd->u.obt.obt_qctxt, oqctl, 1);
167 push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
168 rc = fsfilt_quotactl(obd, obt->obt_sb, oqctl);
169 pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
171 if (oqctl->qc_stat == QUOTA_RECOVERING)
172 quota_unbarrier(handle);
174 if (oqctl->qc_cmd == Q_QUOTAOFF ||
175 oqctl->qc_cmd == Q_FINVALIDATE) {
176 if (oqctl->qc_cmd == Q_QUOTAOFF) {
178 obt->obt_qctxt.lqc_flags &=
179 ~UGQUOTA2LQC(oqctl->qc_type);
180 else if (quota_is_off(qctxt, oqctl))
182 CDEBUG(D_QUOTA, "%s: quotaoff type:flags:rc "
183 "%u:%lu:%d\n", obd->obd_name,
184 oqctl->qc_type, qctxt->lqc_flags, rc);
186 cfs_up(&obt->obt_quotachecking);
191 /* currently, it is only used for nullifying the quota */
192 handle = quota_barrier(&obd->u.obt.obt_qctxt, oqctl, 1);
194 push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
195 rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, oqctl);
198 oqctl->qc_cmd = Q_SYNC;
199 fsfilt_quotactl(obd, obd->u.obt.obt_sb, oqctl);
200 oqctl->qc_cmd = Q_SETQUOTA;
202 pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
203 quota_unbarrier(handle);
205 lqs = quota_search_lqs(LQS_KEY(oqctl->qc_type, oqctl->qc_id),
207 if (lqs == NULL || IS_ERR(lqs)){
208 CERROR("fail to create lqs during setquota operation "
209 "for %sid %u\n", oqctl->qc_type ? "g" : "u",
212 lqs->lqs_flags &= ~QB_SET;
219 unsigned int id[MAXQUOTAS] = { 0, 0 };
221 /* Initialize quota limit to MIN_QLIMIT */
222 LASSERT(oqctl->qc_dqblk.dqb_valid == QIF_BLIMITS);
223 LASSERT(oqctl->qc_dqblk.dqb_bsoftlimit == 0);
225 if (!oqctl->qc_dqblk.dqb_bhardlimit)
228 /* There might be a pending dqacq/dqrel (which is going to
229 * clear stale limits on slave). we should wait for it's
230 * completion then initialize limits */
231 handle = quota_barrier(&obd->u.obt.obt_qctxt, oqctl, 1);
232 LASSERT(oqctl->qc_dqblk.dqb_bhardlimit == MIN_QLIMIT);
233 push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
234 rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, oqctl);
236 /* Update on-disk quota, in case of lose the changed limits
237 * (MIN_QLIMIT) on crash, which cannot be recovered.*/
239 oqctl->qc_cmd = Q_SYNC;
240 fsfilt_quotactl(obd, obd->u.obt.obt_sb, oqctl);
241 oqctl->qc_cmd = Q_INITQUOTA;
243 pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
244 quota_unbarrier(handle);
249 lqs = quota_search_lqs(LQS_KEY(oqctl->qc_type, oqctl->qc_id),
251 if (lqs == NULL || IS_ERR(lqs)){
252 CERROR("fail to create lqs during setquota operation "
253 "for %sid %u\n", oqctl->qc_type ? "g" : "u",
257 lqs->lqs_flags |= QB_SET;
261 /* Trigger qunit pre-acquire */
262 if (oqctl->qc_type == USRQUOTA)
263 id[USRQUOTA] = oqctl->qc_id;
265 id[GRPQUOTA] = oqctl->qc_id;
267 rc = qctxt_adjust_qunit(obd, &obd->u.obt.obt_qctxt,
269 if (rc == -EDQUOT || rc == -EBUSY) {
270 CDEBUG(D_QUOTA, "rc: %d.\n", rc);
277 CERROR("%s: unsupported filter_quotactl command: %d\n",
278 obd->obd_name, oqctl->qc_cmd);
281 cfs_gettimeofday(&work_end);
282 timediff = cfs_timeval_sub(&work_end, &work_start, NULL);
283 lprocfs_counter_add(qctxt->lqc_stats, LQUOTA_QUOTA_CTL, timediff);
287 #endif /* __KERNEL__ */