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) 2011, 2012, Intel Corporation.
28 * Code originally extracted from quota directory
31 #include "../include/obd_class.h"
32 #include "osc_internal.h"
34 static inline struct osc_quota_info *osc_oqi_alloc(u32 id)
36 struct osc_quota_info *oqi;
38 oqi = kmem_cache_alloc(osc_quota_kmem, GFP_NOFS | __GFP_ZERO);
45 int osc_quota_chkdq(struct client_obd *cli, const unsigned int qid[])
49 for (type = 0; type < MAXQUOTAS; type++) {
50 struct osc_quota_info *oqi;
52 oqi = cfs_hash_lookup(cli->cl_quota_hash[type], &qid[type]);
54 /* do not try to access oqi here, it could have been
55 * freed by osc_quota_setdq() */
57 /* the slot is busy, the user is about to run out of
58 * quota space on this OST */
59 CDEBUG(D_QUOTA, "chkdq found noquota for %s %d\n",
60 type == USRQUOTA ? "user" : "grout", qid[type]);
68 #define MD_QUOTA_FLAG(type) ((type == USRQUOTA) ? OBD_MD_FLUSRQUOTA \
70 #define FL_QUOTA_FLAG(type) ((type == USRQUOTA) ? OBD_FL_NO_USRQUOTA \
73 int osc_quota_setdq(struct client_obd *cli, const unsigned int qid[],
79 if ((valid & (OBD_MD_FLUSRQUOTA | OBD_MD_FLGRPQUOTA)) == 0)
82 for (type = 0; type < MAXQUOTAS; type++) {
83 struct osc_quota_info *oqi;
85 if ((valid & MD_QUOTA_FLAG(type)) == 0)
88 /* lookup the ID in the per-type hash table */
89 oqi = cfs_hash_lookup(cli->cl_quota_hash[type], &qid[type]);
90 if ((flags & FL_QUOTA_FLAG(type)) != 0) {
91 /* This ID is getting close to its quota limit, let's
92 * switch to sync I/O */
96 oqi = osc_oqi_alloc(qid[type]);
102 rc = cfs_hash_add_unique(cli->cl_quota_hash[type],
103 &qid[type], &oqi->oqi_hash);
104 /* race with others? */
105 if (rc == -EALREADY) {
107 kmem_cache_free(osc_quota_kmem, oqi);
110 CDEBUG(D_QUOTA, "%s: setdq to insert for %s %d (%d)\n",
111 cli->cl_import->imp_obd->obd_name,
112 type == USRQUOTA ? "user" : "group",
115 /* This ID is now off the hook, let's remove it from
120 oqi = cfs_hash_del_key(cli->cl_quota_hash[type],
123 kmem_cache_free(osc_quota_kmem, oqi);
125 CDEBUG(D_QUOTA, "%s: setdq to remove for %s %d (%p)\n",
126 cli->cl_import->imp_obd->obd_name,
127 type == USRQUOTA ? "user" : "group",
136 * Hash operations for uid/gid <-> osc_quota_info
139 oqi_hashfn(struct cfs_hash *hs, const void *key, unsigned mask)
141 return cfs_hash_u32_hash(*((__u32 *)key), mask);
145 oqi_keycmp(const void *key, struct hlist_node *hnode)
147 struct osc_quota_info *oqi;
150 LASSERT(key != NULL);
152 oqi = hlist_entry(hnode, struct osc_quota_info, oqi_hash);
154 return uid == oqi->oqi_id;
158 oqi_key(struct hlist_node *hnode)
160 struct osc_quota_info *oqi;
162 oqi = hlist_entry(hnode, struct osc_quota_info, oqi_hash);
167 oqi_object(struct hlist_node *hnode)
169 return hlist_entry(hnode, struct osc_quota_info, oqi_hash);
173 oqi_get(struct cfs_hash *hs, struct hlist_node *hnode)
178 oqi_put_locked(struct cfs_hash *hs, struct hlist_node *hnode)
183 oqi_exit(struct cfs_hash *hs, struct hlist_node *hnode)
185 struct osc_quota_info *oqi;
187 oqi = hlist_entry(hnode, struct osc_quota_info, oqi_hash);
189 kmem_cache_free(osc_quota_kmem, oqi);
192 #define HASH_QUOTA_BKT_BITS 5
193 #define HASH_QUOTA_CUR_BITS 5
194 #define HASH_QUOTA_MAX_BITS 15
196 static struct cfs_hash_ops quota_hash_ops = {
197 .hs_hash = oqi_hashfn,
198 .hs_keycmp = oqi_keycmp,
200 .hs_object = oqi_object,
202 .hs_put_locked = oqi_put_locked,
206 int osc_quota_setup(struct obd_device *obd)
208 struct client_obd *cli = &obd->u.cli;
211 for (type = 0; type < MAXQUOTAS; type++) {
212 cli->cl_quota_hash[type] = cfs_hash_create("QUOTA_HASH",
221 if (cli->cl_quota_hash[type] == NULL)
225 if (type == MAXQUOTAS)
228 for (i = 0; i < type; i++)
229 cfs_hash_putref(cli->cl_quota_hash[i]);
234 int osc_quota_cleanup(struct obd_device *obd)
236 struct client_obd *cli = &obd->u.cli;
239 for (type = 0; type < MAXQUOTAS; type++)
240 cfs_hash_putref(cli->cl_quota_hash[type]);
245 int osc_quotactl(struct obd_device *unused, struct obd_export *exp,
246 struct obd_quotactl *oqctl)
248 struct ptlrpc_request *req;
249 struct obd_quotactl *oqc;
252 req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
253 &RQF_OST_QUOTACTL, LUSTRE_OST_VERSION,
258 oqc = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
261 ptlrpc_request_set_replen(req);
262 ptlrpc_at_set_req_timeout(req);
263 req->rq_no_resend = 1;
265 rc = ptlrpc_queue_wait(req);
267 CERROR("ptlrpc_queue_wait failed, rc: %d\n", rc);
269 if (req->rq_repmsg) {
270 oqc = req_capsule_server_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
274 CERROR("Can't unpack obd_quotactl\n");
278 CERROR("Can't unpack obd_quotactl\n");
281 ptlrpc_req_finished(req);
286 int osc_quotacheck(struct obd_device *unused, struct obd_export *exp,
287 struct obd_quotactl *oqctl)
289 struct client_obd *cli = &exp->exp_obd->u.cli;
290 struct ptlrpc_request *req;
291 struct obd_quotactl *body;
294 req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
295 &RQF_OST_QUOTACHECK, LUSTRE_OST_VERSION,
300 body = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
303 ptlrpc_request_set_replen(req);
305 /* the next poll will find -ENODATA, that means quotacheck is
307 cli->cl_qchk_stat = -ENODATA;
308 rc = ptlrpc_queue_wait(req);
310 cli->cl_qchk_stat = rc;
311 ptlrpc_req_finished(req);
315 int osc_quota_poll_check(struct obd_export *exp, struct if_quotacheck *qchk)
317 struct client_obd *cli = &exp->exp_obd->u.cli;
320 qchk->obd_uuid = cli->cl_target_uuid;
321 memcpy(qchk->obd_type, LUSTRE_OST_NAME, strlen(LUSTRE_OST_NAME));
323 rc = cli->cl_qchk_stat;
324 /* the client is not the previous one */
325 if (rc == CL_NOT_QUOTACHECKED)