1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
32 * Copyright (c) 2011 Whamcloud, Inc.
36 * This file is part of Lustre, http://www.lustre.org/
37 * Lustre is a trademark of Sun Microsystems, Inc.
39 * lustre/osc/osc_create.c
40 * For testing and management it is treated as an obd_device,
41 * although * it does not export a full OBD method table (the
42 * requests are coming * in over the wire, so object target modules
43 * do not have a full * method table.)
45 * Author: Peter Braam <braam@clusterfs.com>
49 # define EXPORT_SYMTAB
51 #define DEBUG_SUBSYSTEM S_OSC
54 # include <libcfs/libcfs.h>
55 #else /* __KERNEL__ */
56 # include <liblustre.h>
63 #include <lustre_dlm.h>
64 #include <obd_class.h>
65 #include "osc_internal.h"
67 /* XXX need AT adjust ? */
68 #define osc_create_timeout (obd_timeout / 2)
70 struct osc_create_async_args {
71 struct osc_creator *rq_oscc;
72 struct lov_stripe_md *rq_lsm;
73 struct obd_info *rq_oinfo;
77 static int oscc_internal_create(struct osc_creator *oscc);
78 static int handle_async_create(struct ptlrpc_request *req, int rc);
80 static int osc_interpret_create(const struct lu_env *env,
81 struct ptlrpc_request *req, void *data, int rc)
83 struct osc_create_async_args *args = ptlrpc_req_async_args(req);
84 struct osc_creator *oscc = args->rq_oscc;
85 struct ost_body *body = NULL;
86 struct ptlrpc_request *fake_req, *pos;
90 body = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
91 if (body == NULL && rc == 0)
95 LASSERT(oscc && (oscc->oscc_obd != LP_POISON));
97 cfs_spin_lock(&oscc->oscc_lock);
98 oscc->oscc_flags &= ~OSCC_FLAG_CREATING;
102 int diff =ostid_id(&body->oa.o_oi)- oscc->oscc_last_id;
104 /* oscc_internal_create() stores the original value of
105 * grow_count in osc_create_async_args::rq_grow_count.
106 * We can't compare against oscc_grow_count directly,
107 * because it may have been increased while the RPC
108 * is in flight, so we would always find ourselves
109 * having created fewer objects and decreasing the
110 * precreate request size. b=18577 */
111 if (diff < args->rq_grow_count) {
112 /* the OST has not managed to create all the
113 * objects we asked for */
114 oscc->oscc_grow_count = max(diff,
116 /* don't bump grow_count next time */
117 oscc->oscc_flags |= OSCC_FLAG_LOW;
119 /* the OST is able to keep up with the work,
120 * we could consider increasing grow_count
121 * next time if needed */
122 oscc->oscc_flags &= ~OSCC_FLAG_LOW;
124 oscc->oscc_last_id = ostid_id(&body->oa.o_oi);
126 cfs_spin_unlock(&oscc->oscc_lock);
130 oscc->oscc_flags |= OSCC_FLAG_RDONLY;
134 oscc->oscc_flags |= OSCC_FLAG_NOSPC;
135 if (body && rc == -ENOSPC) {
136 oscc->oscc_last_id = body->oa.o_id;
137 oscc->oscc_grow_count = OST_MIN_PRECREATE;
139 if ((body->oa.o_valid & OBD_MD_FLFLAGS) &&
140 (body->oa.o_flags & OBD_FL_NOSPC_BLK))
141 oscc->oscc_flags |= OSCC_FLAG_NOSPC_BLK;
146 cfs_spin_unlock(&oscc->oscc_lock);
147 DEBUG_REQ(D_INODE, req, "OST out of space, flagging");
150 /* filter always set body->oa.o_id as the last_id
151 * of filter (see filter_handle_precreate for detail)*/
152 if (body && body->oa.o_id > oscc->oscc_last_id)
153 oscc->oscc_last_id = body->oa.o_id;
154 cfs_spin_unlock(&oscc->oscc_lock);
159 /* aka EAGAIN we should not delay create if import failed -
160 * this avoid client stick in create and avoid race with
162 /* EINTR say - old create request is killed due mds<>ost
163 * eviction - OSCC_FLAG_RECOVERING can already set due
164 * IMP_DISCONN event */
165 oscc->oscc_flags |= OSCC_FLAG_RECOVERING;
166 /* oscc->oscc_grow_count = OST_MIN_PRECREATE; */
167 cfs_spin_unlock(&oscc->oscc_lock);
171 oscc->oscc_flags |= OSCC_FLAG_RECOVERING;
172 oscc->oscc_grow_count = OST_MIN_PRECREATE;
173 cfs_spin_unlock(&oscc->oscc_lock);
174 DEBUG_REQ(D_ERROR, req,
175 "Unknown rc %d from async create: failing oscc", rc);
176 ptlrpc_fail_import(req->rq_import,
177 lustre_msg_get_conn_cnt(req->rq_reqmsg));
181 CDEBUG(D_HA, "preallocated through id "LPU64" (next to use "LPU64")\n",
182 oscc->oscc_last_id, oscc->oscc_next_id);
184 cfs_spin_lock(&oscc->oscc_lock);
185 cfs_list_for_each_entry_safe(fake_req, pos,
186 &oscc->oscc_wait_create_list, rq_list) {
187 if (handle_async_create(fake_req, rc) == -EAGAIN) {
188 oscc_internal_create(oscc);
189 /* sending request should be never fail because
190 * osc use preallocated requests pool */
191 GOTO(exit_wakeup, rc);
194 cfs_spin_unlock(&oscc->oscc_lock);
197 cfs_waitq_signal(&oscc->oscc_waitq);
201 static int oscc_internal_create(struct osc_creator *oscc)
203 struct osc_create_async_args *args;
204 struct ptlrpc_request *request;
205 struct ost_body *body;
208 LASSERT_SPIN_LOCKED(&oscc->oscc_lock);
210 /* Do not check for a degraded OST here - bug21563/bug18539 */
211 if (oscc->oscc_flags & OSCC_FLAG_RECOVERING) {
212 cfs_spin_unlock(&oscc->oscc_lock);
216 /* we need check it before OSCC_FLAG_CREATING - because need
217 * see lower number of precreate objects */
218 if (oscc->oscc_grow_count < oscc->oscc_max_grow_count &&
219 ((oscc->oscc_flags & OSCC_FLAG_LOW) == 0) &&
220 (__s64)(oscc->oscc_last_id - oscc->oscc_next_id) <=
221 (oscc->oscc_grow_count / 4 + 1)) {
222 oscc->oscc_flags |= OSCC_FLAG_LOW;
223 oscc->oscc_grow_count *= 2;
226 if (oscc->oscc_flags & OSCC_FLAG_CREATING) {
227 cfs_spin_unlock(&oscc->oscc_lock);
231 if (oscc->oscc_grow_count > oscc->oscc_max_grow_count / 2)
232 oscc->oscc_grow_count = oscc->oscc_max_grow_count / 2;
234 oscc->oscc_flags |= OSCC_FLAG_CREATING;
235 cfs_spin_unlock(&oscc->oscc_lock);
237 request = ptlrpc_request_alloc_pack(oscc->oscc_obd->u.cli.cl_import,
239 LUSTRE_OST_VERSION, OST_CREATE);
240 if (request == NULL) {
241 cfs_spin_lock(&oscc->oscc_lock);
242 oscc->oscc_flags &= ~OSCC_FLAG_CREATING;
243 cfs_spin_unlock(&oscc->oscc_lock);
247 request->rq_request_portal = OST_CREATE_PORTAL;
248 ptlrpc_at_set_req_timeout(request);
249 body = req_capsule_client_get(&request->rq_pill, &RMF_OST_BODY);
250 args = ptlrpc_req_async_args(request);
251 args->rq_oscc = oscc;
253 cfs_spin_lock(&oscc->oscc_lock);
254 args->rq_grow_count = oscc->oscc_grow_count;
256 if (likely(fid_seq_is_mdt(oscc->oscc_oa.o_seq))) {
257 body->oa.o_oi.oi_seq = oscc->oscc_oa.o_seq;
258 body->oa.o_oi.oi_id = oscc->oscc_last_id +
259 oscc->oscc_grow_count;
261 /*Just warning here currently, since not sure how fid-on-ost
262 *will be implemented here */
263 CWARN("o_seq: "LPU64" is not indicate any MDTs.\n",
264 oscc->oscc_oa.o_seq);
266 cfs_spin_unlock(&oscc->oscc_lock);
268 body->oa.o_valid |= OBD_MD_FLID | OBD_MD_FLGROUP;
269 CDEBUG(D_RPCTRACE, "prealloc through id "LPU64" (last seen "LPU64")\n",
270 body->oa.o_id, oscc->oscc_last_id);
272 /* we should not resend create request - anyway we will have delorphan
273 * and kill these objects */
274 request->rq_no_delay = request->rq_no_resend = 1;
275 ptlrpc_request_set_replen(request);
277 request->rq_interpret_reply = osc_interpret_create;
278 ptlrpcd_add_req(request, PSCOPE_OTHER);
283 static int oscc_has_objects_nolock(struct osc_creator *oscc, int count)
285 return ((__s64)(oscc->oscc_last_id - oscc->oscc_next_id) >= count);
289 static int oscc_has_objects(struct osc_creator *oscc, int count)
293 cfs_spin_lock(&oscc->oscc_lock);
294 have_objs = oscc_has_objects_nolock(oscc, count);
295 cfs_spin_unlock(&oscc->oscc_lock);
300 static int oscc_wait_for_objects(struct osc_creator *oscc, int count)
305 ost_unusable = oscc->oscc_obd->u.cli.cl_import->imp_invalid;
307 cfs_spin_lock(&oscc->oscc_lock);
308 ost_unusable |= (OSCC_FLAG_NOSPC | OSCC_FLAG_RDONLY |
309 OSCC_FLAG_EXITING) & oscc->oscc_flags;
310 have_objs = oscc_has_objects_nolock(oscc, count);
312 if (!ost_unusable && !have_objs)
313 /* they release lock himself */
314 have_objs = oscc_internal_create(oscc);
316 cfs_spin_unlock(&oscc->oscc_lock);
318 return have_objs || ost_unusable;
321 static int oscc_precreate(struct osc_creator *oscc)
323 struct l_wait_info lwi;
327 if (oscc_has_objects(oscc, oscc->oscc_grow_count / 2))
330 /* we should be not block forever - because client's create rpc can
331 * stick in mds for long time and forbid client reconnect */
332 lwi = LWI_TIMEOUT(cfs_timeout_cap(cfs_time_seconds(osc_create_timeout)),
335 rc = l_wait_event(oscc->oscc_waitq, oscc_wait_for_objects(oscc, 1), &lwi);
339 static int oscc_in_sync(struct osc_creator *oscc)
343 cfs_spin_lock(&oscc->oscc_lock);
344 sync = oscc->oscc_flags & OSCC_FLAG_SYNC_IN_PROGRESS;
345 cfs_spin_unlock(&oscc->oscc_lock);
350 /* decide if the OST has remaining object, return value :
351 0 : the OST has remaining objects, may or may not send precreation RPC.
352 1 : the OST has no remaining object, and the sent precreation RPC
353 has not been completed yet.
354 2 : the OST has no remaining object, and will not get any for
355 a potentially very long time
358 int osc_precreate(struct obd_export *exp)
360 struct osc_creator *oscc = &exp->exp_obd->u.cli.cl_oscc;
361 struct obd_import *imp = exp->exp_imp_reverse;
365 LASSERT(oscc != NULL);
366 if (imp != NULL && imp->imp_deactive)
367 GOTO(out_nolock, rc = 1000);
369 /* Handle critical states first */
370 cfs_spin_lock(&oscc->oscc_lock);
371 if (oscc->oscc_flags & OSCC_FLAG_NOSPC_BLK ||
372 oscc->oscc_flags & OSCC_FLAG_RDONLY ||
373 oscc->oscc_flags & OSCC_FLAG_EXITING)
374 GOTO(out, rc = 1000);
376 if ((oscc->oscc_flags & OSCC_FLAG_RECOVERING) ||
377 (oscc->oscc_flags & OSCC_FLAG_DEGRADED))
380 if (oscc_has_objects_nolock(oscc, oscc->oscc_grow_count / 2))
383 /* Return 0, if we have at least one object - bug 22884 */
384 rc = oscc_has_objects_nolock(oscc, 1) ? 0 : 1;
386 if (oscc->oscc_flags & OSCC_FLAG_NOSPC)
387 GOTO(out, (rc == 0) ? 0 : 1000);
389 /* Do not check for OSCC_FLAG_CREATING flag here, let
390 * osc_precreate() call oscc_internal_create() and
391 * adjust oscc_grow_count bug21563 */
392 if (oscc->oscc_flags & OSCC_FLAG_SYNC_IN_PROGRESS)
395 if (oscc_internal_create(oscc))
396 GOTO(out_nolock, rc = 1000);
400 cfs_spin_unlock(&oscc->oscc_lock);
405 static int handle_async_create(struct ptlrpc_request *req, int rc)
407 struct osc_create_async_args *args = ptlrpc_req_async_args(req);
408 struct osc_creator *oscc = args->rq_oscc;
409 struct lov_stripe_md *lsm = args->rq_lsm;
410 struct obd_info *oinfo = args->rq_oinfo;
411 struct obdo *oa = oinfo->oi_oa;
413 LASSERT_SPIN_LOCKED(&oscc->oscc_lock);
418 /* Handle the critical type errors first.
419 * Should we also test cl_import state as well ? */
420 if (oscc->oscc_flags & OSCC_FLAG_EXITING)
421 GOTO(out_wake, rc = -EIO);
423 if (oscc->oscc_flags & OSCC_FLAG_NOSPC_BLK)
424 GOTO(out_wake, rc = -ENOSPC);
426 if (oscc->oscc_flags & OSCC_FLAG_RDONLY)
427 GOTO(out_wake, rc = -EROFS);
429 /* should be try wait until recovery finished */
430 if((oscc->oscc_flags & OSCC_FLAG_RECOVERING) ||
431 (oscc->oscc_flags & OSCC_FLAG_DEGRADED))
434 if (oscc_has_objects_nolock(oscc, 1)) {
435 memcpy(oa, &oscc->oscc_oa, sizeof(*oa));
436 oa->o_id = oscc->oscc_next_id;
437 lsm->lsm_object_id = oscc->oscc_next_id;
438 oscc->oscc_next_id++;
440 CDEBUG(D_RPCTRACE, " set oscc_next_id = "LPU64"\n",
442 GOTO(out_wake, rc = 0);
445 /* we don't have objects now - continue wait */
450 rc = oinfo->oi_cb_up(oinfo, rc);
451 ptlrpc_fakereq_finished(req);
456 static int async_create_interpret(const struct lu_env *env,
457 struct ptlrpc_request *req, void *data,
460 struct osc_create_async_args *args = ptlrpc_req_async_args(req);
461 struct osc_creator *oscc = args->rq_oscc;
464 cfs_spin_lock(&oscc->oscc_lock);
465 ret = handle_async_create(req, rc);
466 cfs_spin_unlock(&oscc->oscc_lock);
471 int osc_create_async(struct obd_export *exp, struct obd_info *oinfo,
472 struct lov_stripe_md **ea, struct obd_trans_info *oti)
475 struct ptlrpc_request *fake_req;
476 struct osc_create_async_args *args;
477 struct osc_creator *oscc = &exp->exp_obd->u.cli.cl_oscc;
478 struct obdo *oa = oinfo->oi_oa;
481 if ((oa->o_valid & OBD_MD_FLGROUP) && !fid_seq_is_mdt(oa->o_seq)) {
482 rc = osc_real_create(exp, oinfo->oi_oa, ea, oti);
483 rc = oinfo->oi_cb_up(oinfo, rc);
487 if ((oa->o_valid & OBD_MD_FLFLAGS) &&
488 oa->o_flags == OBD_FL_RECREATE_OBJS) {
489 rc = osc_real_create(exp, oinfo->oi_oa, ea, oti);
490 rc = oinfo->oi_cb_up(oinfo, rc);
494 LASSERT((*ea) != NULL);
496 fake_req = ptlrpc_prep_fakereq(oscc->oscc_obd->u.cli.cl_import,
498 async_create_interpret);
499 if (fake_req == NULL) {
500 rc = oinfo->oi_cb_up(oinfo, -ENOMEM);
504 args = ptlrpc_req_async_args(fake_req);
505 CLASSERT(sizeof(*args) <= sizeof(fake_req->rq_async_args));
507 args->rq_oscc = oscc;
509 args->rq_oinfo = oinfo;
511 cfs_spin_lock(&oscc->oscc_lock);
513 rc = handle_async_create(fake_req, 0);
516 /* we not have objects - try wait */
517 is_add = ptlrpcd_add_req(fake_req, PSCOPE_OTHER);
519 cfs_list_add(&fake_req->rq_list,
520 &oscc->oscc_wait_create_list);
524 cfs_spin_unlock(&oscc->oscc_lock);
527 /* need free request if was error hit or
528 * objects already allocated */
529 ptlrpc_req_finished(fake_req);
531 /* EAGAIN mean - request is delayed */
537 int osc_create(struct obd_export *exp, struct obdo *oa,
538 struct lov_stripe_md **ea, struct obd_trans_info *oti)
540 struct osc_creator *oscc = &exp->exp_obd->u.cli.cl_oscc;
541 struct obd_import *imp = exp->exp_obd->u.cli.cl_import;
542 struct lov_stripe_md *lsm;
543 int del_orphan = 0, rc = 0;
548 LASSERT(oa->o_valid & OBD_MD_FLGROUP);
550 if ((oa->o_valid & OBD_MD_FLFLAGS) &&
551 oa->o_flags == OBD_FL_RECREATE_OBJS) {
552 RETURN(osc_real_create(exp, oa, ea, oti));
555 if (!fid_seq_is_mdt(oa->o_seq))
556 RETURN(osc_real_create(exp, oa, ea, oti));
558 /* this is the special case where create removes orphans */
559 if (oa->o_valid & OBD_MD_FLFLAGS &&
560 oa->o_flags == OBD_FL_DELORPHAN) {
561 cfs_spin_lock(&oscc->oscc_lock);
562 if (oscc->oscc_flags & OSCC_FLAG_SYNC_IN_PROGRESS) {
563 cfs_spin_unlock(&oscc->oscc_lock);
566 if (!(oscc->oscc_flags & OSCC_FLAG_RECOVERING)) {
567 cfs_spin_unlock(&oscc->oscc_lock);
571 oscc->oscc_flags |= OSCC_FLAG_SYNC_IN_PROGRESS;
572 /* seting flag LOW we prevent extra grow precreate size
573 * and enforce use last assigned size */
574 oscc->oscc_flags |= OSCC_FLAG_LOW;
575 cfs_spin_unlock(&oscc->oscc_lock);
576 CDEBUG(D_HA, "%s: oscc recovery started - delete to "LPU64"\n",
577 oscc->oscc_obd->obd_name, oscc->oscc_next_id - 1);
581 /* delete from next_id on up */
582 oa->o_valid |= OBD_MD_FLID;
583 oa->o_id = oscc->oscc_next_id - 1;
585 rc = osc_real_create(exp, oa, ea, NULL);
587 cfs_spin_lock(&oscc->oscc_lock);
588 oscc->oscc_flags &= ~OSCC_FLAG_SYNC_IN_PROGRESS;
589 if (rc == 0 || rc == -ENOSPC) {
590 struct obd_connect_data *ocd;
593 oscc->oscc_flags |= OSCC_FLAG_NOSPC;
594 if ((oa->o_valid & OBD_MD_FLFLAGS) &&
595 (oa->o_flags & OBD_FL_NOSPC_BLK))
596 oscc->oscc_flags |= OSCC_FLAG_NOSPC_BLK;
598 oscc->oscc_flags &= ~OSCC_FLAG_RECOVERING;
600 oscc->oscc_last_id = oa->o_id;
601 ocd = &imp->imp_connect_data;
602 if (ocd->ocd_connect_flags & OBD_CONNECT_SKIP_ORPHAN) {
604 * The OST reports back in oa->o_id from where
605 * we should restart in order to skip orphan
608 CDEBUG(D_HA, "%s: Skip orphan set, reset last "
609 "objid\n", oscc->oscc_obd->obd_name);
610 oscc->oscc_next_id = oa->o_id + 1;
613 /* sanity check for next objid. see bug 17025 */
614 LASSERT(oscc->oscc_next_id == oa->o_id + 1);
616 CDEBUG(D_HA, "%s: oscc recovery finished, last_id: "
617 LPU64", rc: %d\n", oscc->oscc_obd->obd_name,
618 oscc->oscc_last_id, rc);
620 CDEBUG(D_ERROR, "%s: oscc recovery failed: %d\n",
621 oscc->oscc_obd->obd_name, rc);
624 cfs_waitq_signal(&oscc->oscc_waitq);
625 cfs_spin_unlock(&oscc->oscc_lock);
633 rc = obd_alloc_memmd(exp, &lsm);
639 if (oscc_in_sync(oscc))
640 CDEBUG(D_HA,"%s: oscc recovery in progress, waiting\n",
641 oscc->oscc_obd->obd_name);
643 rc = oscc_precreate(oscc);
645 CDEBUG(D_HA,"%s: error create %d\n",
646 oscc->oscc_obd->obd_name, rc);
648 cfs_spin_lock(&oscc->oscc_lock);
650 /* wakeup but recovery did not finished */
651 if ((oscc->oscc_obd->u.cli.cl_import->imp_invalid) ||
652 (oscc->oscc_flags & OSCC_FLAG_RECOVERING)) {
654 cfs_spin_unlock(&oscc->oscc_lock);
658 if (oscc->oscc_flags & OSCC_FLAG_NOSPC_BLK) {
660 cfs_spin_unlock(&oscc->oscc_lock);
664 if (oscc->oscc_flags & OSCC_FLAG_RDONLY) {
666 cfs_spin_unlock(&oscc->oscc_lock);
670 // Should we report -EIO error ?
671 if (oscc->oscc_flags & OSCC_FLAG_EXITING) {
672 cfs_spin_unlock(&oscc->oscc_lock);
677 * If this is DELORPHAN process, no need create object here,
678 * otherwise this will create a gap of object id, and MDS
679 * might create some orphan log (mds_lov_update_objids), then
680 * remove objects wrongly on OST. Bug 21379.
682 if (oa->o_valid & OBD_MD_FLFLAGS &&
683 oa->o_flags == OBD_FL_DELORPHAN) {
684 cfs_spin_unlock(&oscc->oscc_lock);
688 if (oscc_has_objects_nolock(oscc, 1)) {
689 memcpy(oa, &oscc->oscc_oa, sizeof(*oa));
690 oa->o_id = oscc->oscc_next_id;
691 lsm->lsm_object_id = oscc->oscc_next_id;
693 oscc->oscc_next_id++;
694 cfs_spin_unlock(&oscc->oscc_lock);
696 CDEBUG(D_RPCTRACE, "%s: set oscc_next_id = "LPU64"\n",
697 exp->exp_obd->obd_name, oscc->oscc_next_id);
701 if (oscc->oscc_flags & OSCC_FLAG_NOSPC) {
703 cfs_spin_unlock(&oscc->oscc_lock);
707 cfs_spin_unlock(&oscc->oscc_lock);
711 CDEBUG(D_INFO, "%s: returning objid "LPU64"\n",
712 obd2cli_tgt(oscc->oscc_obd), lsm->lsm_object_id);
715 obd_free_memmd(exp, &lsm);
716 if (del_orphan != 0 && rc != -EIO)
717 /* Ignore non-IO precreate error for clear orphan */
723 void oscc_init(struct obd_device *obd)
725 struct osc_creator *oscc;
730 oscc = &obd->u.cli.cl_oscc;
732 memset(oscc, 0, sizeof(*oscc));
734 cfs_waitq_init(&oscc->oscc_waitq);
735 cfs_spin_lock_init(&oscc->oscc_lock);
736 oscc->oscc_obd = obd;
737 oscc->oscc_grow_count = OST_MIN_PRECREATE;
738 oscc->oscc_max_grow_count = OST_MAX_PRECREATE;
740 oscc->oscc_next_id = 2;
741 oscc->oscc_last_id = 1;
742 oscc->oscc_flags |= OSCC_FLAG_RECOVERING;
744 CFS_INIT_LIST_HEAD(&oscc->oscc_wait_create_list);
746 /* XXX the export handle should give the oscc the last object */
747 /* oed->oed_oscc.oscc_last_id = exph->....; */
750 void oscc_fini(struct obd_device *obd)
752 struct osc_creator *oscc = &obd->u.cli.cl_oscc;
756 cfs_spin_lock(&oscc->oscc_lock);
757 oscc->oscc_flags &= ~OSCC_FLAG_RECOVERING;
758 oscc->oscc_flags |= OSCC_FLAG_EXITING;
759 cfs_spin_unlock(&oscc->oscc_lock);