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,
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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
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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/ext3_fs.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"
63 static int target_quotacheck_callback(struct obd_export *exp,
64 struct obd_quotactl *oqctl)
66 struct ptlrpc_request *req;
67 struct obd_quotactl *body;
71 req = ptlrpc_request_alloc_pack(exp->exp_imp_reverse, &RQF_QC_CALLBACK,
72 LUSTRE_OBD_VERSION, OBD_QC_CALLBACK);
76 body = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
79 ptlrpc_request_set_replen(req);
81 rc = ptlrpc_queue_wait(req);
82 ptlrpc_req_finished(req);
87 static int target_quotacheck_thread(void *data)
89 struct quotacheck_thread_args *qta = data;
90 struct obd_export *exp;
91 struct obd_device *obd;
92 struct obd_quotactl *oqctl;
93 struct lvfs_run_ctxt saved;
96 cfs_daemonize_ctxt("quotacheck");
100 oqctl = &qta->qta_oqctl;
102 push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
104 rc = fsfilt_quotacheck(obd, qta->qta_sb, oqctl);
106 CERROR("%s: fsfilt_quotacheck: %d\n", obd->obd_name, rc);
108 pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
110 rc = target_quotacheck_callback(exp, oqctl);
111 class_export_put(exp);
112 cfs_up(qta->qta_sem);
117 int target_quota_check(struct obd_device *obd, struct obd_export *exp,
118 struct obd_quotactl *oqctl)
120 struct obd_device_target *obt = &obd->u.obt;
121 struct quotacheck_thread_args *qta;
129 cfs_down(&obt->obt_quotachecking);
133 qta->qta_oqctl = *oqctl;
134 qta->qta_oqctl.qc_id = obt->obt_qfmt; /* override qfmt version */
135 qta->qta_sb = obt->obt_sb;
136 qta->qta_sem = &obt->obt_quotachecking;
138 /* quotaoff firstly */
139 oqctl->qc_cmd = Q_QUOTAOFF;
140 if (!strcmp(obd->obd_type->typ_name, LUSTRE_MDS_NAME)) {
141 rc = do_mds_quota_off(obd, oqctl);
142 if (rc && rc != -EALREADY) {
143 CERROR("off quota on MDS failed: %d\n", rc);
148 rc = init_admin_quotafiles(obd, &qta->qta_oqctl);
150 CERROR("init_admin_quotafiles failed: %d\n", rc);
154 struct lvfs_run_ctxt saved;
155 struct lustre_quota_ctxt *qctxt = &obt->obt_qctxt;
157 push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
158 rc = fsfilt_quotactl(obd, obt->obt_sb, oqctl);
159 pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
161 qctxt->lqc_flags &= ~UGQUOTA2LQC(oqctl->qc_type);
162 } else if (!quota_is_off(qctxt, oqctl)) {
163 CERROR("off quota on OSS failed: %d\n", rc);
168 /* we get ref for exp because target_quotacheck_callback() will use this
169 * export later b=18126 */
170 class_export_get(exp);
171 rc = cfs_create_thread(target_quotacheck_thread, qta,
174 /* target_quotacheck_thread will drop the ref on exp and release
175 * obt_quotachecking */
176 CDEBUG(D_INFO, "%s: target_quotacheck_thread: %d\n",
180 CERROR("%s: error starting quotacheck_thread: %d\n",
182 class_export_put(exp);
187 cfs_up(&obt->obt_quotachecking);
192 #endif /* __KERNEL__ */