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
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, Intel Corporation.
28 * Code originally extracted from quota directory
31 # include <liblustre.h>
35 #include "osc_internal.h"
37 static inline struct osc_quota_info *osc_oqi_alloc(obd_uid id)
39 struct osc_quota_info *oqi;
41 OBD_SLAB_ALLOC_PTR(oqi, osc_quota_kmem);
48 int osc_quota_chkdq(struct client_obd *cli, const unsigned int qid[])
53 for (type = 0; type < MAXQUOTAS; type++) {
54 struct osc_quota_info *oqi;
56 oqi = cfs_hash_lookup(cli->cl_quota_hash[type], &qid[type]);
58 /* do not try to access oqi here, it could have been
59 * freed by osc_quota_setdq() */
61 /* the slot is busy, the user is about to run out of
62 * quota space on this OST */
63 CDEBUG(D_QUOTA, "chkdq found noquota for %s %d\n",
64 type == USRQUOTA ? "user" : "grout", qid[type]);
72 #define MD_QUOTA_FLAG(type) ((type == USRQUOTA) ? OBD_MD_FLUSRQUOTA \
74 #define FL_QUOTA_FLAG(type) ((type == USRQUOTA) ? OBD_FL_NO_USRQUOTA \
77 int osc_quota_setdq(struct client_obd *cli, const unsigned int qid[],
78 obd_flag valid, obd_flag flags)
84 if ((valid & (OBD_MD_FLUSRQUOTA | OBD_MD_FLGRPQUOTA)) == 0)
87 for (type = 0; type < MAXQUOTAS; type++) {
88 struct osc_quota_info *oqi;
90 if ((valid & MD_QUOTA_FLAG(type)) == 0)
93 /* lookup the ID in the per-type hash table */
94 oqi = cfs_hash_lookup(cli->cl_quota_hash[type], &qid[type]);
95 if ((flags & FL_QUOTA_FLAG(type)) != 0) {
96 /* This ID is getting close to its quota limit, let's
97 * switch to sync I/O */
101 oqi = osc_oqi_alloc(qid[type]);
107 rc = cfs_hash_add_unique(cli->cl_quota_hash[type],
108 &qid[type], &oqi->oqi_hash);
109 /* race with others? */
110 if (rc == -EALREADY) {
112 OBD_SLAB_FREE_PTR(oqi, osc_quota_kmem);
115 CDEBUG(D_QUOTA, "%s: setdq to insert for %s %d (%d)\n",
116 cli->cl_import->imp_obd->obd_name,
117 type == USRQUOTA ? "user" : "group",
120 /* This ID is now off the hook, let's remove it from
125 oqi = cfs_hash_del_key(cli->cl_quota_hash[type],
128 OBD_SLAB_FREE_PTR(oqi, osc_quota_kmem);
130 CDEBUG(D_QUOTA, "%s: setdq to remove for %s %d (%p)\n",
131 cli->cl_import->imp_obd->obd_name,
132 type == USRQUOTA ? "user" : "group",
141 * Hash operations for uid/gid <-> osc_quota_info
144 oqi_hashfn(cfs_hash_t *hs, const void *key, unsigned mask)
146 return cfs_hash_u32_hash(*((__u32*)key), mask);
150 oqi_keycmp(const void *key, cfs_hlist_node_t *hnode)
152 struct osc_quota_info *oqi;
155 LASSERT(key != NULL);
156 uid = *((obd_uid*)key);
157 oqi = cfs_hlist_entry(hnode, struct osc_quota_info, oqi_hash);
159 return uid == oqi->oqi_id;
163 oqi_key(cfs_hlist_node_t *hnode)
165 struct osc_quota_info *oqi;
166 oqi = cfs_hlist_entry(hnode, struct osc_quota_info, oqi_hash);
171 oqi_object(cfs_hlist_node_t *hnode)
173 return cfs_hlist_entry(hnode, struct osc_quota_info, oqi_hash);
177 oqi_get(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
182 oqi_put_locked(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
187 oqi_exit(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
189 struct osc_quota_info *oqi;
191 oqi = cfs_hlist_entry(hnode, struct osc_quota_info, oqi_hash);
193 OBD_SLAB_FREE_PTR(oqi, osc_quota_kmem);
196 #define HASH_QUOTA_BKT_BITS 5
197 #define HASH_QUOTA_CUR_BITS 5
198 #define HASH_QUOTA_MAX_BITS 15
200 static cfs_hash_ops_t quota_hash_ops = {
201 .hs_hash = oqi_hashfn,
202 .hs_keycmp = oqi_keycmp,
204 .hs_object = oqi_object,
206 .hs_put_locked = oqi_put_locked,
210 int osc_quota_setup(struct obd_device *obd)
212 struct client_obd *cli = &obd->u.cli;
216 for (type = 0; type < MAXQUOTAS; type++) {
217 cli->cl_quota_hash[type] = cfs_hash_create("QUOTA_HASH",
226 if (cli->cl_quota_hash[type] == NULL)
230 if (type == MAXQUOTAS)
233 for (i = 0; i < type; i++)
234 cfs_hash_putref(cli->cl_quota_hash[i]);
239 int osc_quota_cleanup(struct obd_device *obd)
241 struct client_obd *cli = &obd->u.cli;
245 for (type = 0; type < MAXQUOTAS; type++)
246 cfs_hash_putref(cli->cl_quota_hash[type]);
251 int osc_quotactl(struct obd_device *unused, struct obd_export *exp,
252 struct obd_quotactl *oqctl)
254 struct ptlrpc_request *req;
255 struct obd_quotactl *oqc;
259 req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
260 &RQF_OST_QUOTACTL, LUSTRE_OST_VERSION,
265 oqc = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
268 ptlrpc_request_set_replen(req);
269 ptlrpc_at_set_req_timeout(req);
270 req->rq_no_resend = 1;
272 rc = ptlrpc_queue_wait(req);
274 CERROR("ptlrpc_queue_wait failed, rc: %d\n", rc);
276 if (req->rq_repmsg &&
277 (oqc = req_capsule_server_get(&req->rq_pill, &RMF_OBD_QUOTACTL))) {
280 CERROR ("Can't unpack obd_quotactl\n");
283 ptlrpc_req_finished(req);
288 int osc_quotacheck(struct obd_device *unused, struct obd_export *exp,
289 struct obd_quotactl *oqctl)
291 struct client_obd *cli = &exp->exp_obd->u.cli;
292 struct ptlrpc_request *req;
293 struct obd_quotactl *body;
297 req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
298 &RQF_OST_QUOTACHECK, LUSTRE_OST_VERSION,
303 body = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
306 ptlrpc_request_set_replen(req);
308 /* the next poll will find -ENODATA, that means quotacheck is
310 cli->cl_qchk_stat = -ENODATA;
311 rc = ptlrpc_queue_wait(req);
313 cli->cl_qchk_stat = rc;
314 ptlrpc_req_finished(req);
318 int osc_quota_poll_check(struct obd_export *exp, struct if_quotacheck *qchk)
320 struct client_obd *cli = &exp->exp_obd->u.cli;
324 qchk->obd_uuid = cli->cl_target_uuid;
325 memcpy(qchk->obd_type, LUSTRE_OST_NAME, strlen(LUSTRE_OST_NAME));
327 rc = cli->cl_qchk_stat;
328 /* the client is not the previous one */
329 if (rc == CL_NOT_QUOTACHECKED)