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.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/osc/osc_create.c
37 * For testing and management it is treated as an obd_device,
38 * although * it does not export a full OBD method table (the
39 * requests are coming * in over the wire, so object target modules
40 * do not have a full * method table.)
42 * Author: Peter Braam <braam@clusterfs.com>
46 # define EXPORT_SYMTAB
48 #define DEBUG_SUBSYSTEM S_OSC
51 # include <libcfs/libcfs.h>
52 #else /* __KERNEL__ */
53 # include <liblustre.h>
60 #include <lustre_dlm.h>
61 #include <obd_class.h>
62 #include "osc_internal.h"
64 /* XXX need AT adjust ? */
65 #define osc_create_timeout (obd_timeout / 2)
67 struct osc_create_async_args {
68 struct osc_creator *rq_oscc;
69 struct lov_stripe_md *rq_lsm;
70 struct obd_info *rq_oinfo;
74 static int oscc_internal_create(struct osc_creator *oscc);
75 static int handle_async_create(struct ptlrpc_request *req, int rc);
77 static int osc_interpret_create(const struct lu_env *env,
78 struct ptlrpc_request *req, void *data, int rc)
80 struct osc_create_async_args *args = ptlrpc_req_async_args(req);
81 struct osc_creator *oscc = args->rq_oscc;
82 struct ost_body *body = NULL;
83 struct ptlrpc_request *fake_req, *pos;
87 body = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
88 if (body == NULL && rc == 0)
92 LASSERT(oscc && (oscc->oscc_obd != LP_POISON));
94 cfs_spin_lock(&oscc->oscc_lock);
95 oscc->oscc_flags &= ~OSCC_FLAG_CREATING;
99 int diff =ostid_id(&body->oa.o_oi)- oscc->oscc_last_id;
101 /* oscc_internal_create() stores the original value of
102 * grow_count in osc_create_async_args::rq_grow_count.
103 * We can't compare against oscc_grow_count directly,
104 * because it may have been increased while the RPC
105 * is in flight, so we would always find ourselves
106 * having created fewer objects and decreasing the
107 * precreate request size. b=18577 */
108 if (diff < args->rq_grow_count) {
109 /* the OST has not managed to create all the
110 * objects we asked for */
111 oscc->oscc_grow_count = max(diff,
113 /* don't bump grow_count next time */
114 oscc->oscc_flags |= OSCC_FLAG_LOW;
116 /* the OST is able to keep up with the work,
117 * we could consider increasing grow_count
118 * next time if needed */
119 oscc->oscc_flags &= ~OSCC_FLAG_LOW;
121 oscc->oscc_last_id = ostid_id(&body->oa.o_oi);
123 cfs_spin_unlock(&oscc->oscc_lock);
127 oscc->oscc_flags |= OSCC_FLAG_RDONLY;
131 oscc->oscc_flags |= OSCC_FLAG_NOSPC;
132 if (body && rc == -ENOSPC) {
133 oscc->oscc_last_id = body->oa.o_id;
134 oscc->oscc_grow_count = OST_MIN_PRECREATE;
136 if ((body->oa.o_valid & OBD_MD_FLFLAGS) &&
137 (body->oa.o_flags & OBD_FL_NOSPC_BLK))
138 oscc->oscc_flags |= OSCC_FLAG_NOSPC_BLK;
143 cfs_spin_unlock(&oscc->oscc_lock);
144 DEBUG_REQ(D_INODE, req, "OST out of space, flagging");
147 /* filter always set body->oa.o_id as the last_id
148 * of filter (see filter_handle_precreate for detail)*/
149 if (body && body->oa.o_id > oscc->oscc_last_id)
150 oscc->oscc_last_id = body->oa.o_id;
151 cfs_spin_unlock(&oscc->oscc_lock);
156 /* aka EAGAIN we should not delay create if import failed -
157 * this avoid client stick in create and avoid race with
159 /* EINTR say - old create request is killed due mds<>ost
160 * eviction - OSCC_FLAG_RECOVERING can already set due
161 * IMP_DISCONN event */
162 oscc->oscc_flags |= OSCC_FLAG_RECOVERING;
163 /* oscc->oscc_grow_count = OST_MIN_PRECREATE; */
164 cfs_spin_unlock(&oscc->oscc_lock);
168 oscc->oscc_flags |= OSCC_FLAG_RECOVERING;
169 oscc->oscc_grow_count = OST_MIN_PRECREATE;
170 cfs_spin_unlock(&oscc->oscc_lock);
171 DEBUG_REQ(D_ERROR, req,
172 "Unknown rc %d from async create: failing oscc", rc);
173 ptlrpc_fail_import(req->rq_import,
174 lustre_msg_get_conn_cnt(req->rq_reqmsg));
178 CDEBUG(D_HA, "preallocated through id "LPU64" (next to use "LPU64")\n",
179 oscc->oscc_last_id, oscc->oscc_next_id);
181 cfs_spin_lock(&oscc->oscc_lock);
182 cfs_list_for_each_entry_safe(fake_req, pos,
183 &oscc->oscc_wait_create_list, rq_list) {
184 if (handle_async_create(fake_req, rc) == -EAGAIN) {
185 oscc_internal_create(oscc);
186 /* sending request should be never fail because
187 * osc use preallocated requests pool */
188 GOTO(exit_wakeup, rc);
191 cfs_spin_unlock(&oscc->oscc_lock);
194 cfs_waitq_signal(&oscc->oscc_waitq);
198 static int oscc_internal_create(struct osc_creator *oscc)
200 struct osc_create_async_args *args;
201 struct ptlrpc_request *request;
202 struct ost_body *body;
205 LASSERT_SPIN_LOCKED(&oscc->oscc_lock);
207 /* Do not check for a degraded OST here - bug21563/bug18539 */
208 if (oscc->oscc_flags & OSCC_FLAG_RECOVERING) {
209 cfs_spin_unlock(&oscc->oscc_lock);
213 /* we need check it before OSCC_FLAG_CREATING - because need
214 * see lower number of precreate objects */
215 if (oscc->oscc_grow_count < oscc->oscc_max_grow_count &&
216 ((oscc->oscc_flags & OSCC_FLAG_LOW) == 0) &&
217 (__s64)(oscc->oscc_last_id - oscc->oscc_next_id) <=
218 (oscc->oscc_grow_count / 4 + 1)) {
219 oscc->oscc_flags |= OSCC_FLAG_LOW;
220 oscc->oscc_grow_count *= 2;
223 if (oscc->oscc_flags & OSCC_FLAG_CREATING) {
224 cfs_spin_unlock(&oscc->oscc_lock);
228 if (oscc->oscc_grow_count > oscc->oscc_max_grow_count / 2)
229 oscc->oscc_grow_count = oscc->oscc_max_grow_count / 2;
231 oscc->oscc_flags |= OSCC_FLAG_CREATING;
232 cfs_spin_unlock(&oscc->oscc_lock);
234 request = ptlrpc_request_alloc_pack(oscc->oscc_obd->u.cli.cl_import,
236 LUSTRE_OST_VERSION, OST_CREATE);
237 if (request == NULL) {
238 cfs_spin_lock(&oscc->oscc_lock);
239 oscc->oscc_flags &= ~OSCC_FLAG_CREATING;
240 cfs_spin_unlock(&oscc->oscc_lock);
244 request->rq_request_portal = OST_CREATE_PORTAL;
245 ptlrpc_at_set_req_timeout(request);
246 body = req_capsule_client_get(&request->rq_pill, &RMF_OST_BODY);
247 args = ptlrpc_req_async_args(request);
248 args->rq_oscc = oscc;
250 cfs_spin_lock(&oscc->oscc_lock);
251 args->rq_grow_count = oscc->oscc_grow_count;
253 if (likely(fid_seq_is_mdt(oscc->oscc_oa.o_seq))) {
254 body->oa.o_oi.oi_seq = oscc->oscc_oa.o_seq;
255 body->oa.o_oi.oi_id = oscc->oscc_last_id +
256 oscc->oscc_grow_count;
258 /*Just warning here currently, since not sure how fid-on-ost
259 *will be implemented here */
260 CWARN("o_seq: "LPU64" is not indicate any MDTs.\n",
261 oscc->oscc_oa.o_seq);
263 cfs_spin_unlock(&oscc->oscc_lock);
265 body->oa.o_valid |= OBD_MD_FLID | OBD_MD_FLGROUP;
266 CDEBUG(D_RPCTRACE, "prealloc through id "LPU64" (last seen "LPU64")\n",
267 body->oa.o_id, oscc->oscc_last_id);
269 /* we should not resend create request - anyway we will have delorphan
270 * and kill these objects */
271 request->rq_no_delay = request->rq_no_resend = 1;
272 ptlrpc_request_set_replen(request);
274 request->rq_interpret_reply = osc_interpret_create;
275 ptlrpcd_add_req(request, PSCOPE_OTHER);
280 static int oscc_has_objects_nolock(struct osc_creator *oscc, int count)
282 return ((__s64)(oscc->oscc_last_id - oscc->oscc_next_id) >= count);
286 static int oscc_has_objects(struct osc_creator *oscc, int count)
290 cfs_spin_lock(&oscc->oscc_lock);
291 have_objs = oscc_has_objects_nolock(oscc, count);
292 cfs_spin_unlock(&oscc->oscc_lock);
297 static int oscc_wait_for_objects(struct osc_creator *oscc, int count)
302 ost_unusable = oscc->oscc_obd->u.cli.cl_import->imp_invalid;
304 cfs_spin_lock(&oscc->oscc_lock);
305 ost_unusable |= (OSCC_FLAG_NOSPC | OSCC_FLAG_RDONLY |
306 OSCC_FLAG_EXITING) & oscc->oscc_flags;
307 have_objs = oscc_has_objects_nolock(oscc, count);
309 if (!ost_unusable && !have_objs)
310 /* they release lock himself */
311 have_objs = oscc_internal_create(oscc);
313 cfs_spin_unlock(&oscc->oscc_lock);
315 return have_objs || ost_unusable;
318 static int oscc_precreate(struct osc_creator *oscc)
320 struct l_wait_info lwi;
324 if (oscc_has_objects(oscc, oscc->oscc_grow_count / 2))
327 /* we should be not block forever - because client's create rpc can
328 * stick in mds for long time and forbid client reconnect */
329 lwi = LWI_TIMEOUT(cfs_timeout_cap(cfs_time_seconds(osc_create_timeout)),
332 rc = l_wait_event(oscc->oscc_waitq, oscc_wait_for_objects(oscc, 1), &lwi);
336 static int oscc_in_sync(struct osc_creator *oscc)
340 cfs_spin_lock(&oscc->oscc_lock);
341 sync = oscc->oscc_flags & OSCC_FLAG_SYNC_IN_PROGRESS;
342 cfs_spin_unlock(&oscc->oscc_lock);
347 /* decide if the OST has remaining object, return value :
348 0 : the OST has remaining objects, may or may not send precreation RPC.
349 1 : the OST has no remaining object, and the sent precreation RPC
350 has not been completed yet.
351 2 : the OST has no remaining object, and will not get any for
352 a potentially very long time
355 int osc_precreate(struct obd_export *exp)
357 struct osc_creator *oscc = &exp->exp_obd->u.cli.cl_oscc;
358 struct obd_import *imp = exp->exp_imp_reverse;
362 LASSERT(oscc != NULL);
363 if (imp != NULL && imp->imp_deactive)
364 GOTO(out_nolock, rc = 1000);
366 /* Handle critical states first */
367 cfs_spin_lock(&oscc->oscc_lock);
368 if (oscc->oscc_flags & OSCC_FLAG_NOSPC_BLK ||
369 oscc->oscc_flags & OSCC_FLAG_RDONLY ||
370 oscc->oscc_flags & OSCC_FLAG_EXITING)
371 GOTO(out, rc = 1000);
373 if ((oscc->oscc_flags & OSCC_FLAG_RECOVERING) ||
374 (oscc->oscc_flags & OSCC_FLAG_DEGRADED))
377 if (oscc_has_objects_nolock(oscc, oscc->oscc_grow_count / 2))
380 /* Return 0, if we have at least one object - bug 22884 */
381 rc = oscc_has_objects_nolock(oscc, 1) ? 0 : 1;
383 if (oscc->oscc_flags & OSCC_FLAG_NOSPC)
384 GOTO(out, (rc == 0) ? 0 : 1000);
386 /* Do not check for OSCC_FLAG_CREATING flag here, let
387 * osc_precreate() call oscc_internal_create() and
388 * adjust oscc_grow_count bug21563 */
389 if (oscc->oscc_flags & OSCC_FLAG_SYNC_IN_PROGRESS)
392 if (oscc_internal_create(oscc))
393 GOTO(out_nolock, rc = 1000);
397 cfs_spin_unlock(&oscc->oscc_lock);
402 static int handle_async_create(struct ptlrpc_request *req, int rc)
404 struct osc_create_async_args *args = ptlrpc_req_async_args(req);
405 struct osc_creator *oscc = args->rq_oscc;
406 struct lov_stripe_md *lsm = args->rq_lsm;
407 struct obd_info *oinfo = args->rq_oinfo;
408 struct obdo *oa = oinfo->oi_oa;
410 LASSERT_SPIN_LOCKED(&oscc->oscc_lock);
415 /* Handle the critical type errors first.
416 * Should we also test cl_import state as well ? */
417 if (oscc->oscc_flags & OSCC_FLAG_EXITING)
418 GOTO(out_wake, rc = -EIO);
420 if (oscc->oscc_flags & OSCC_FLAG_NOSPC_BLK)
421 GOTO(out_wake, rc = -ENOSPC);
423 if (oscc->oscc_flags & OSCC_FLAG_RDONLY)
424 GOTO(out_wake, rc = -EROFS);
426 /* should be try wait until recovery finished */
427 if((oscc->oscc_flags & OSCC_FLAG_RECOVERING) ||
428 (oscc->oscc_flags & OSCC_FLAG_DEGRADED))
431 if (oscc_has_objects_nolock(oscc, 1)) {
432 memcpy(oa, &oscc->oscc_oa, sizeof(*oa));
433 oa->o_id = oscc->oscc_next_id;
434 lsm->lsm_object_id = oscc->oscc_next_id;
435 oscc->oscc_next_id++;
437 CDEBUG(D_RPCTRACE, " set oscc_next_id = "LPU64"\n",
439 GOTO(out_wake, rc = 0);
442 /* we don't have objects now - continue wait */
447 rc = oinfo->oi_cb_up(oinfo, rc);
448 ptlrpc_fakereq_finished(req);
453 static int async_create_interpret(const struct lu_env *env,
454 struct ptlrpc_request *req, void *data,
457 struct osc_create_async_args *args = ptlrpc_req_async_args(req);
458 struct osc_creator *oscc = args->rq_oscc;
461 cfs_spin_lock(&oscc->oscc_lock);
462 ret = handle_async_create(req, rc);
463 cfs_spin_unlock(&oscc->oscc_lock);
468 int osc_create_async(struct obd_export *exp, struct obd_info *oinfo,
469 struct lov_stripe_md **ea, struct obd_trans_info *oti)
472 struct ptlrpc_request *fake_req;
473 struct osc_create_async_args *args;
474 struct osc_creator *oscc = &exp->exp_obd->u.cli.cl_oscc;
475 struct obdo *oa = oinfo->oi_oa;
478 if ((oa->o_valid & OBD_MD_FLGROUP) && !fid_seq_is_mdt(oa->o_seq)) {
479 rc = osc_real_create(exp, oinfo->oi_oa, ea, oti);
480 rc = oinfo->oi_cb_up(oinfo, rc);
484 if ((oa->o_valid & OBD_MD_FLFLAGS) &&
485 oa->o_flags == OBD_FL_RECREATE_OBJS) {
486 rc = osc_real_create(exp, oinfo->oi_oa, ea, oti);
487 rc = oinfo->oi_cb_up(oinfo, rc);
491 LASSERT((*ea) != NULL);
493 fake_req = ptlrpc_prep_fakereq(oscc->oscc_obd->u.cli.cl_import,
495 async_create_interpret);
496 if (fake_req == NULL) {
497 rc = oinfo->oi_cb_up(oinfo, -ENOMEM);
501 args = ptlrpc_req_async_args(fake_req);
502 CLASSERT(sizeof(*args) <= sizeof(fake_req->rq_async_args));
504 args->rq_oscc = oscc;
506 args->rq_oinfo = oinfo;
508 cfs_spin_lock(&oscc->oscc_lock);
510 rc = handle_async_create(fake_req, 0);
513 /* we not have objects - try wait */
514 is_add = ptlrpcd_add_req(fake_req, PSCOPE_OTHER);
516 cfs_list_add(&fake_req->rq_list,
517 &oscc->oscc_wait_create_list);
521 cfs_spin_unlock(&oscc->oscc_lock);
524 /* need free request if was error hit or
525 * objects already allocated */
526 ptlrpc_req_finished(fake_req);
528 /* EAGAIN mean - request is delayed */
534 int osc_create(struct obd_export *exp, struct obdo *oa,
535 struct lov_stripe_md **ea, struct obd_trans_info *oti)
537 struct osc_creator *oscc = &exp->exp_obd->u.cli.cl_oscc;
538 struct obd_import *imp = exp->exp_obd->u.cli.cl_import;
539 struct lov_stripe_md *lsm;
540 int del_orphan = 0, rc = 0;
545 LASSERT(oa->o_valid & OBD_MD_FLGROUP);
547 if ((oa->o_valid & OBD_MD_FLFLAGS) &&
548 oa->o_flags == OBD_FL_RECREATE_OBJS) {
549 RETURN(osc_real_create(exp, oa, ea, oti));
552 if (!fid_seq_is_mdt(oa->o_seq))
553 RETURN(osc_real_create(exp, oa, ea, oti));
555 /* this is the special case where create removes orphans */
556 if (oa->o_valid & OBD_MD_FLFLAGS &&
557 oa->o_flags == OBD_FL_DELORPHAN) {
558 cfs_spin_lock(&oscc->oscc_lock);
559 if (oscc->oscc_flags & OSCC_FLAG_SYNC_IN_PROGRESS) {
560 cfs_spin_unlock(&oscc->oscc_lock);
563 if (!(oscc->oscc_flags & OSCC_FLAG_RECOVERING)) {
564 cfs_spin_unlock(&oscc->oscc_lock);
568 oscc->oscc_flags |= OSCC_FLAG_SYNC_IN_PROGRESS;
569 /* seting flag LOW we prevent extra grow precreate size
570 * and enforce use last assigned size */
571 oscc->oscc_flags |= OSCC_FLAG_LOW;
572 cfs_spin_unlock(&oscc->oscc_lock);
573 CDEBUG(D_HA, "%s: oscc recovery started - delete to "LPU64"\n",
574 oscc->oscc_obd->obd_name, oscc->oscc_next_id - 1);
578 /* delete from next_id on up */
579 oa->o_valid |= OBD_MD_FLID;
580 oa->o_id = oscc->oscc_next_id - 1;
582 rc = osc_real_create(exp, oa, ea, NULL);
584 cfs_spin_lock(&oscc->oscc_lock);
585 oscc->oscc_flags &= ~OSCC_FLAG_SYNC_IN_PROGRESS;
586 if (rc == 0 || rc == -ENOSPC) {
587 struct obd_connect_data *ocd;
590 oscc->oscc_flags |= OSCC_FLAG_NOSPC;
591 if ((oa->o_valid & OBD_MD_FLFLAGS) &&
592 (oa->o_flags & OBD_FL_NOSPC_BLK))
593 oscc->oscc_flags |= OSCC_FLAG_NOSPC_BLK;
595 oscc->oscc_flags &= ~OSCC_FLAG_RECOVERING;
597 oscc->oscc_last_id = oa->o_id;
598 ocd = &imp->imp_connect_data;
599 if (ocd->ocd_connect_flags & OBD_CONNECT_SKIP_ORPHAN) {
601 * The OST reports back in oa->o_id from where
602 * we should restart in order to skip orphan
605 CDEBUG(D_HA, "%s: Skip orphan set, reset last "
606 "objid\n", oscc->oscc_obd->obd_name);
607 oscc->oscc_next_id = oa->o_id + 1;
610 /* sanity check for next objid. see bug 17025 */
611 LASSERT(oscc->oscc_next_id == oa->o_id + 1);
613 CDEBUG(D_HA, "%s: oscc recovery finished, last_id: "
614 LPU64", rc: %d\n", oscc->oscc_obd->obd_name,
615 oscc->oscc_last_id, rc);
617 CDEBUG(D_ERROR, "%s: oscc recovery failed: %d\n",
618 oscc->oscc_obd->obd_name, rc);
621 cfs_waitq_signal(&oscc->oscc_waitq);
622 cfs_spin_unlock(&oscc->oscc_lock);
630 rc = obd_alloc_memmd(exp, &lsm);
636 if (oscc_in_sync(oscc))
637 CDEBUG(D_HA,"%s: oscc recovery in progress, waiting\n",
638 oscc->oscc_obd->obd_name);
640 rc = oscc_precreate(oscc);
642 CDEBUG(D_HA,"%s: error create %d\n",
643 oscc->oscc_obd->obd_name, rc);
645 cfs_spin_lock(&oscc->oscc_lock);
647 /* wakeup but recovery did not finished */
648 if ((oscc->oscc_obd->u.cli.cl_import->imp_invalid) ||
649 (oscc->oscc_flags & OSCC_FLAG_RECOVERING)) {
651 cfs_spin_unlock(&oscc->oscc_lock);
655 if (oscc->oscc_flags & OSCC_FLAG_NOSPC_BLK) {
657 cfs_spin_unlock(&oscc->oscc_lock);
661 if (oscc->oscc_flags & OSCC_FLAG_RDONLY) {
663 cfs_spin_unlock(&oscc->oscc_lock);
667 // Should we report -EIO error ?
668 if (oscc->oscc_flags & OSCC_FLAG_EXITING) {
669 cfs_spin_unlock(&oscc->oscc_lock);
674 * If this is DELORPHAN process, no need create object here,
675 * otherwise this will create a gap of object id, and MDS
676 * might create some orphan log (mds_lov_update_objids), then
677 * remove objects wrongly on OST. Bug 21379.
679 if (oa->o_valid & OBD_MD_FLFLAGS &&
680 oa->o_flags == OBD_FL_DELORPHAN) {
681 cfs_spin_unlock(&oscc->oscc_lock);
685 if (oscc_has_objects_nolock(oscc, 1)) {
686 memcpy(oa, &oscc->oscc_oa, sizeof(*oa));
687 oa->o_id = oscc->oscc_next_id;
688 lsm->lsm_object_id = oscc->oscc_next_id;
690 oscc->oscc_next_id++;
691 cfs_spin_unlock(&oscc->oscc_lock);
693 CDEBUG(D_RPCTRACE, "%s: set oscc_next_id = "LPU64"\n",
694 exp->exp_obd->obd_name, oscc->oscc_next_id);
698 if (oscc->oscc_flags & OSCC_FLAG_NOSPC) {
700 cfs_spin_unlock(&oscc->oscc_lock);
704 cfs_spin_unlock(&oscc->oscc_lock);
708 CDEBUG(D_INFO, "%s: returning objid "LPU64"\n",
709 obd2cli_tgt(oscc->oscc_obd), lsm->lsm_object_id);
712 obd_free_memmd(exp, &lsm);
713 if (del_orphan != 0 && rc != -EIO)
714 /* Ignore non-IO precreate error for clear orphan */
720 void oscc_init(struct obd_device *obd)
722 struct osc_creator *oscc;
727 oscc = &obd->u.cli.cl_oscc;
729 memset(oscc, 0, sizeof(*oscc));
731 cfs_waitq_init(&oscc->oscc_waitq);
732 cfs_spin_lock_init(&oscc->oscc_lock);
733 oscc->oscc_obd = obd;
734 oscc->oscc_grow_count = OST_MIN_PRECREATE;
735 oscc->oscc_max_grow_count = OST_MAX_PRECREATE;
737 oscc->oscc_next_id = 2;
738 oscc->oscc_last_id = 1;
739 oscc->oscc_flags |= OSCC_FLAG_RECOVERING;
741 CFS_INIT_LIST_HEAD(&oscc->oscc_wait_create_list);
743 /* XXX the export handle should give the oscc the last object */
744 /* oed->oed_oscc.oscc_last_id = exph->....; */
747 void oscc_fini(struct obd_device *obd)
749 struct osc_creator *oscc = &obd->u.cli.cl_oscc;
753 cfs_spin_lock(&oscc->oscc_lock);
754 oscc->oscc_flags &= ~OSCC_FLAG_RECOVERING;
755 oscc->oscc_flags |= OSCC_FLAG_EXITING;
756 cfs_spin_unlock(&oscc->oscc_lock);