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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17 * version 2 along with this program; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 021110-1307, USA
24 * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
26 * Copyright (c) 2012, 2015, Intel Corporation.
28 * Code originally extracted from quota directory
32 #include "osc_internal.h"
34 static inline struct osc_quota_info *osc_oqi_alloc(u32 id)
36 struct osc_quota_info *oqi;
38 OBD_SLAB_ALLOC_PTR(oqi, osc_quota_kmem);
45 int osc_quota_chkdq(struct client_obd *cli, const unsigned int qid[])
50 for (type = 0; type < LL_MAXQUOTAS; type++) {
51 struct osc_quota_info *oqi;
53 oqi = cfs_hash_lookup(cli->cl_quota_hash[type], &qid[type]);
55 /* do not try to access oqi here, it could have been
56 * freed by osc_quota_setdq() */
58 /* the slot is busy, the user is about to run out of
59 * quota space on this OST */
60 CDEBUG(D_QUOTA, "chkdq found noquota for %s %d\n",
61 type == USRQUOTA ? "user" : "grout", qid[type]);
69 static inline u32 md_quota_flag(int qtype)
73 return OBD_MD_FLUSRQUOTA;
75 return OBD_MD_FLGRPQUOTA;
77 return OBD_MD_FLPRJQUOTA;
83 static inline u32 fl_quota_flag(int qtype)
87 return OBD_FL_NO_USRQUOTA;
89 return OBD_FL_NO_GRPQUOTA;
91 return OBD_FL_NO_PRJQUOTA;
97 int osc_quota_setdq(struct client_obd *cli, const unsigned int qid[],
105 if ((valid & (OBD_MD_FLALLQUOTA)) == 0)
108 for (type = 0; type < LL_MAXQUOTAS; type++) {
109 struct osc_quota_info *oqi;
111 if ((valid & md_quota_flag(type)) == 0)
114 /* lookup the ID in the per-type hash table */
115 oqi = cfs_hash_lookup(cli->cl_quota_hash[type], &qid[type]);
116 if ((flags & fl_quota_flag(type)) != 0) {
117 /* This ID is getting close to its quota limit, let's
118 * switch to sync I/O */
122 oqi = osc_oqi_alloc(qid[type]);
128 rc = cfs_hash_add_unique(cli->cl_quota_hash[type],
129 &qid[type], &oqi->oqi_hash);
130 /* race with others? */
131 if (rc == -EALREADY) {
133 OBD_SLAB_FREE_PTR(oqi, osc_quota_kmem);
136 CDEBUG(D_QUOTA, "%s: setdq to insert for %s %d (%d)\n",
137 cli_name(cli), qtype_name(type), qid[type], rc);
139 /* This ID is now off the hook, let's remove it from
144 oqi = cfs_hash_del_key(cli->cl_quota_hash[type],
147 OBD_SLAB_FREE_PTR(oqi, osc_quota_kmem);
149 CDEBUG(D_QUOTA, "%s: setdq to remove for %s %d (%p)\n",
150 cli_name(cli), qtype_name(type), qid[type], oqi);
158 * Hash operations for uid/gid <-> osc_quota_info
161 oqi_hashfn(struct cfs_hash *hs, const void *key, unsigned mask)
163 return cfs_hash_u32_hash(*((__u32*)key), mask);
167 oqi_keycmp(const void *key, struct hlist_node *hnode)
169 struct osc_quota_info *oqi;
172 LASSERT(key != NULL);
174 oqi = hlist_entry(hnode, struct osc_quota_info, oqi_hash);
176 return uid == oqi->oqi_id;
180 oqi_key(struct hlist_node *hnode)
182 struct osc_quota_info *oqi;
183 oqi = hlist_entry(hnode, struct osc_quota_info, oqi_hash);
188 oqi_object(struct hlist_node *hnode)
190 return hlist_entry(hnode, struct osc_quota_info, oqi_hash);
194 oqi_get(struct cfs_hash *hs, struct hlist_node *hnode)
199 oqi_put_locked(struct cfs_hash *hs, struct hlist_node *hnode)
204 oqi_exit(struct cfs_hash *hs, struct hlist_node *hnode)
206 struct osc_quota_info *oqi;
208 oqi = hlist_entry(hnode, struct osc_quota_info, oqi_hash);
210 OBD_SLAB_FREE_PTR(oqi, osc_quota_kmem);
213 #define HASH_QUOTA_BKT_BITS 5
214 #define HASH_QUOTA_CUR_BITS 5
215 #define HASH_QUOTA_MAX_BITS 15
217 static struct cfs_hash_ops quota_hash_ops = {
218 .hs_hash = oqi_hashfn,
219 .hs_keycmp = oqi_keycmp,
221 .hs_object = oqi_object,
223 .hs_put_locked = oqi_put_locked,
227 int osc_quota_setup(struct obd_device *obd)
229 struct client_obd *cli = &obd->u.cli;
233 for (type = 0; type < LL_MAXQUOTAS; type++) {
234 cli->cl_quota_hash[type] = cfs_hash_create("QUOTA_HASH",
243 if (cli->cl_quota_hash[type] == NULL)
247 if (type == LL_MAXQUOTAS)
250 for (i = 0; i < type; i++)
251 cfs_hash_putref(cli->cl_quota_hash[i]);
256 int osc_quota_cleanup(struct obd_device *obd)
258 struct client_obd *cli = &obd->u.cli;
262 for (type = 0; type < LL_MAXQUOTAS; type++)
263 cfs_hash_putref(cli->cl_quota_hash[type]);
268 int osc_quotactl(struct obd_device *unused, struct obd_export *exp,
269 struct obd_quotactl *oqctl)
271 struct ptlrpc_request *req;
272 struct obd_quotactl *oqc;
276 req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
277 &RQF_OST_QUOTACTL, LUSTRE_OST_VERSION,
282 oqc = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
285 ptlrpc_request_set_replen(req);
286 ptlrpc_at_set_req_timeout(req);
287 req->rq_no_resend = 1;
289 rc = ptlrpc_queue_wait(req);
291 CERROR("ptlrpc_queue_wait failed, rc: %d\n", rc);
293 if (req->rq_repmsg &&
294 (oqc = req_capsule_server_get(&req->rq_pill, &RMF_OBD_QUOTACTL))) {
297 CERROR ("Can't unpack obd_quotactl\n");
300 ptlrpc_req_finished(req);