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, 2017, Intel Corporation.
28 * Code originally extracted from quota directory
32 #include <lustre_osc.h>
34 #include "osc_internal.h"
36 static inline struct osc_quota_info *osc_oqi_alloc(u32 id)
38 struct osc_quota_info *oqi;
40 OBD_SLAB_ALLOC_PTR(oqi, osc_quota_kmem);
47 int osc_quota_chkdq(struct client_obd *cli, const unsigned int qid[])
52 for (type = 0; type < LL_MAXQUOTAS; type++) {
53 struct osc_quota_info *oqi;
55 oqi = cfs_hash_lookup(cli->cl_quota_hash[type], &qid[type]);
57 /* do not try to access oqi here, it could have been
58 * freed by osc_quota_setdq() */
60 /* the slot is busy, the user is about to run out of
61 * quota space on this OST */
62 CDEBUG(D_QUOTA, "chkdq found noquota for %s %d\n",
63 type == USRQUOTA ? "user" : "grout", qid[type]);
71 static inline u32 md_quota_flag(int qtype)
75 return OBD_MD_FLUSRQUOTA;
77 return OBD_MD_FLGRPQUOTA;
79 return OBD_MD_FLPRJQUOTA;
85 static inline u32 fl_quota_flag(int qtype)
89 return OBD_FL_NO_USRQUOTA;
91 return OBD_FL_NO_GRPQUOTA;
93 return OBD_FL_NO_PRJQUOTA;
99 int osc_quota_setdq(struct client_obd *cli, __u64 xid, const unsigned int qid[],
100 u64 valid, u32 flags)
107 if ((valid & (OBD_MD_FLALLQUOTA)) == 0)
110 mutex_lock(&cli->cl_quota_mutex);
111 cli->cl_root_squash = !!(flags & OBD_FL_ROOT_SQUASH);
112 /* still mark the quots is running out for the old request, because it
113 * could be processed after the new request at OST, the side effect is
114 * the following request will be processed synchronously, but it will
115 * not break the quota enforcement. */
116 if (cli->cl_quota_last_xid > xid && !(flags & OBD_FL_NO_QUOTA_ALL))
117 GOTO(out_unlock, rc);
119 if (cli->cl_quota_last_xid < xid)
120 cli->cl_quota_last_xid = xid;
122 for (type = 0; type < LL_MAXQUOTAS; type++) {
123 struct osc_quota_info *oqi;
125 if ((valid & md_quota_flag(type)) == 0)
128 /* lookup the ID in the per-type hash table */
129 oqi = cfs_hash_lookup(cli->cl_quota_hash[type], &qid[type]);
130 if ((flags & fl_quota_flag(type)) != 0) {
131 /* This ID is getting close to its quota limit, let's
132 * switch to sync I/O */
136 oqi = osc_oqi_alloc(qid[type]);
142 rc = cfs_hash_add_unique(cli->cl_quota_hash[type],
143 &qid[type], &oqi->oqi_hash);
144 /* race with others? */
145 if (rc == -EALREADY) {
147 OBD_SLAB_FREE_PTR(oqi, osc_quota_kmem);
150 CDEBUG(D_QUOTA, "%s: setdq to insert for %s %d (%d)\n",
151 cli_name(cli), qtype_name(type), qid[type], rc);
153 /* This ID is now off the hook, let's remove it from
158 oqi = cfs_hash_del_key(cli->cl_quota_hash[type],
161 OBD_SLAB_FREE_PTR(oqi, osc_quota_kmem);
163 CDEBUG(D_QUOTA, "%s: setdq to remove for %s %d (%p)\n",
164 cli_name(cli), qtype_name(type), qid[type], oqi);
169 mutex_unlock(&cli->cl_quota_mutex);
174 * Hash operations for uid/gid <-> osc_quota_info
177 oqi_hashfn(struct cfs_hash *hs, const void *key, unsigned mask)
179 return cfs_hash_u32_hash(*((__u32*)key), mask);
183 oqi_keycmp(const void *key, struct hlist_node *hnode)
185 struct osc_quota_info *oqi;
188 LASSERT(key != NULL);
190 oqi = hlist_entry(hnode, struct osc_quota_info, oqi_hash);
192 return uid == oqi->oqi_id;
196 oqi_key(struct hlist_node *hnode)
198 struct osc_quota_info *oqi;
199 oqi = hlist_entry(hnode, struct osc_quota_info, oqi_hash);
204 oqi_object(struct hlist_node *hnode)
206 return hlist_entry(hnode, struct osc_quota_info, oqi_hash);
210 oqi_get(struct cfs_hash *hs, struct hlist_node *hnode)
215 oqi_put_locked(struct cfs_hash *hs, struct hlist_node *hnode)
220 oqi_exit(struct cfs_hash *hs, struct hlist_node *hnode)
222 struct osc_quota_info *oqi;
224 oqi = hlist_entry(hnode, struct osc_quota_info, oqi_hash);
226 OBD_SLAB_FREE_PTR(oqi, osc_quota_kmem);
229 #define HASH_QUOTA_BKT_BITS 5
230 #define HASH_QUOTA_CUR_BITS 5
231 #define HASH_QUOTA_MAX_BITS 15
233 static struct cfs_hash_ops quota_hash_ops = {
234 .hs_hash = oqi_hashfn,
235 .hs_keycmp = oqi_keycmp,
237 .hs_object = oqi_object,
239 .hs_put_locked = oqi_put_locked,
243 int osc_quota_setup(struct obd_device *obd)
245 struct client_obd *cli = &obd->u.cli;
249 mutex_init(&cli->cl_quota_mutex);
251 for (type = 0; type < LL_MAXQUOTAS; type++) {
252 cli->cl_quota_hash[type] = cfs_hash_create("QUOTA_HASH",
261 if (cli->cl_quota_hash[type] == NULL)
265 if (type == LL_MAXQUOTAS)
268 for (i = 0; i < type; i++)
269 cfs_hash_putref(cli->cl_quota_hash[i]);
274 int osc_quota_cleanup(struct obd_device *obd)
276 struct client_obd *cli = &obd->u.cli;
280 for (type = 0; type < LL_MAXQUOTAS; type++)
281 cfs_hash_putref(cli->cl_quota_hash[type]);
286 int osc_quotactl(struct obd_device *unused, struct obd_export *exp,
287 struct obd_quotactl *oqctl)
289 struct ptlrpc_request *req;
290 struct obd_quotactl *oqc;
294 req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
295 &RQF_OST_QUOTACTL, LUSTRE_OST_VERSION,
300 oqc = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
303 ptlrpc_request_set_replen(req);
304 ptlrpc_at_set_req_timeout(req);
305 req->rq_no_resend = 1;
307 rc = ptlrpc_queue_wait(req);
309 CERROR("ptlrpc_queue_wait failed, rc: %d\n", rc);
311 if (req->rq_repmsg &&
312 (oqc = req_capsule_server_get(&req->rq_pill, &RMF_OBD_QUOTACTL))) {
315 CERROR ("Can't unpack obd_quotactl\n");
318 ptlrpc_req_finished(req);