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, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2012, Intel, Inc.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/osp/osp_sync.c
38 * Lustre OST Proxy Device
40 * Author: Alex Zhuravlev <alexey.zhuravlev@intel.com>
41 * Author: Mikhail Pershin <mike.pershin@intel.com>
45 # define EXPORT_SYMTAB
47 #define DEBUG_SUBSYSTEM S_MDS
49 #include "osp_internal.h"
52 * there are two specific states to take care about:
54 * = import is disconnected =
56 * = import is inactive =
57 * in this case osp_declare_object_create() returns an error
64 static inline int osp_statfs_need_update(struct osp_device *d)
66 return !cfs_time_before(cfs_time_current(),
67 d->opd_statfs_fresh_till);
70 static void osp_statfs_timer_cb(unsigned long _d)
72 struct osp_device *d = (struct osp_device *) _d;
75 cfs_waitq_signal(&d->opd_pre_waitq);
78 static int osp_statfs_interpret(const struct lu_env *env,
79 struct ptlrpc_request *req,
80 union ptlrpc_async_args *aa, int rc)
82 struct obd_import *imp = req->rq_import;
83 struct obd_statfs *msfs;
88 aa = ptlrpc_req_async_args(req);
89 d = aa->pointer_arg[0];
95 msfs = req_capsule_server_get(&req->rq_pill, &RMF_OBD_STATFS);
97 GOTO(out, rc = -EPROTO);
99 d->opd_statfs = *msfs;
101 osp_pre_update_status(d, rc);
103 /* schedule next update */
104 d->opd_statfs_fresh_till = cfs_time_shift(d->opd_statfs_maxage);
105 cfs_timer_arm(&d->opd_statfs_timer, d->opd_statfs_fresh_till);
106 d->opd_statfs_update_in_progress = 0;
108 CDEBUG(D_CACHE, "updated statfs %p\n", d);
112 /* couldn't update statfs, try again as soon as possible */
113 cfs_waitq_signal(&d->opd_pre_waitq);
114 if (req->rq_import_generation == imp->imp_generation)
115 CERROR("%s: couldn't update statfs: rc = %d\n",
116 d->opd_obd->obd_name, rc);
120 static int osp_statfs_update(struct osp_device *d)
122 struct ptlrpc_request *req;
123 struct obd_import *imp;
124 union ptlrpc_async_args *aa;
129 CDEBUG(D_CACHE, "going to update statfs\n");
131 imp = d->opd_obd->u.cli.cl_import;
134 req = ptlrpc_request_alloc(imp, &RQF_OST_STATFS);
138 rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_STATFS);
140 ptlrpc_request_free(req);
143 ptlrpc_request_set_replen(req);
144 req->rq_request_portal = OST_CREATE_PORTAL;
145 ptlrpc_at_set_req_timeout(req);
147 req->rq_interpret_reply = (ptlrpc_interpterer_t)osp_statfs_interpret;
148 aa = ptlrpc_req_async_args(req);
149 aa->pointer_arg[0] = d;
152 * no updates till reply
154 cfs_timer_disarm(&d->opd_statfs_timer);
155 d->opd_statfs_fresh_till = cfs_time_shift(obd_timeout * 1000);
156 d->opd_statfs_update_in_progress = 1;
158 ptlrpcd_add_req(req, PDL_POLICY_ROUND, -1);
164 * XXX: there might be a case where removed object(s) do not add free
165 * space (empty object). if the number of such deletions is high, then
166 * we can start to update statfs too often - a rpc storm
167 * TODO: some throttling is needed
169 void osp_statfs_need_now(struct osp_device *d)
171 if (!d->opd_statfs_update_in_progress) {
173 * if current status is -ENOSPC (lack of free space on OST)
174 * then we should poll OST immediately once object destroy
177 d->opd_statfs_fresh_till = cfs_time_shift(-1);
178 cfs_timer_disarm(&d->opd_statfs_timer);
179 cfs_waitq_signal(&d->opd_pre_waitq);
185 * OSP tries to maintain pool of available objects so that calls to create
186 * objects don't block most of time
188 * each time OSP gets connected to OST, we should start from precreation cleanup
190 static inline int osp_precreate_running(struct osp_device *d)
192 return !!(d->opd_pre_thread.t_flags & SVC_RUNNING);
195 static inline int osp_precreate_stopped(struct osp_device *d)
197 return !!(d->opd_pre_thread.t_flags & SVC_STOPPED);
200 static inline int osp_precreate_near_empty_nolock(struct osp_device *d)
202 int window = d->opd_pre_last_created - d->opd_pre_used_id;
204 /* don't consider new precreation till OST is healty and
206 return ((window - d->opd_pre_reserved < d->opd_pre_grow_count / 2) &&
207 (d->opd_pre_status == 0));
210 static inline int osp_precreate_near_empty(struct osp_device *d)
214 /* XXX: do we really need locking here? */
215 cfs_spin_lock(&d->opd_pre_lock);
216 rc = osp_precreate_near_empty_nolock(d);
217 cfs_spin_unlock(&d->opd_pre_lock);
221 static int osp_precreate_send(struct osp_device *d)
223 struct ptlrpc_request *req;
224 struct obd_import *imp;
225 struct ost_body *body;
230 /* don't precreate new objects till OST healthy and has free space */
231 if (unlikely(d->opd_pre_status)) {
232 CDEBUG(D_INFO, "%s: don't send new precreate: rc = %d\n",
233 d->opd_obd->obd_name, d->opd_pre_status);
238 * if not connection/initialization is compeleted, ignore
240 imp = d->opd_obd->u.cli.cl_import;
243 req = ptlrpc_request_alloc(imp, &RQF_OST_CREATE);
246 req->rq_request_portal = OST_CREATE_PORTAL;
247 /* we should not resend create request - anyway we will have delorphan
248 * and kill these objects */
249 req->rq_no_delay = req->rq_no_resend = 1;
251 rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_CREATE);
253 ptlrpc_request_free(req);
257 cfs_spin_lock(&d->opd_pre_lock);
258 if (d->opd_pre_grow_count > d->opd_pre_max_grow_count / 2)
259 d->opd_pre_grow_count = d->opd_pre_max_grow_count / 2;
260 grow = d->opd_pre_grow_count;
261 cfs_spin_unlock(&d->opd_pre_lock);
263 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
265 body->oa.o_id = d->opd_pre_last_created + grow;
266 body->oa.o_seq = FID_SEQ_OST_MDT0; /* XXX: support for CMD? */
267 body->oa.o_valid = OBD_MD_FLGROUP;
269 ptlrpc_request_set_replen(req);
271 rc = ptlrpc_queue_wait(req);
273 CERROR("%s: can't precreate: rc = %d\n",
274 d->opd_obd->obd_name, rc);
277 LASSERT(req->rq_transno == 0);
279 body = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
281 GOTO(out_req, rc = -EPROTO);
283 CDEBUG(D_HA, "new last_created %lu\n", (unsigned long) body->oa.o_id);
284 LASSERT(body->oa.o_id > d->opd_pre_used_id);
286 diff = body->oa.o_id - d->opd_pre_last_created;
288 cfs_spin_lock(&d->opd_pre_lock);
290 /* the OST has not managed to create all the
291 * objects we asked for */
292 d->opd_pre_grow_count = max(diff, OST_MIN_PRECREATE);
293 d->opd_pre_grow_slow = 1;
295 /* the OST is able to keep up with the work,
296 * we could consider increasing grow_count
297 * next time if needed */
298 d->opd_pre_grow_slow = 0;
300 d->opd_pre_last_created = body->oa.o_id;
301 cfs_spin_unlock(&d->opd_pre_lock);
302 CDEBUG(D_OTHER, "current precreated pool: %llu-%llu\n",
303 d->opd_pre_used_id, d->opd_pre_last_created);
306 /* now we can wakeup all users awaiting for objects */
307 osp_pre_update_status(d, rc);
308 cfs_waitq_signal(&d->opd_pre_user_waitq);
310 ptlrpc_req_finished(req);
315 static int osp_get_lastid_from_ost(struct osp_device *d)
317 struct ptlrpc_request *req;
318 struct obd_import *imp;
323 imp = d->opd_obd->u.cli.cl_import;
326 req = ptlrpc_request_alloc(imp, &RQF_OST_GET_INFO_LAST_ID);
330 req_capsule_set_size(&req->rq_pill, &RMF_SETINFO_KEY,
331 RCL_CLIENT, sizeof(KEY_LAST_ID));
332 rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_GET_INFO);
334 ptlrpc_request_free(req);
338 tmp = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_KEY);
339 memcpy(tmp, KEY_LAST_ID, sizeof(KEY_LAST_ID));
341 req->rq_no_delay = req->rq_no_resend = 1;
342 ptlrpc_request_set_replen(req);
343 rc = ptlrpc_queue_wait(req);
345 /* bad-bad OST.. let sysadm sort this out */
346 ptlrpc_set_import_active(imp, 0);
350 reply = req_capsule_server_get(&req->rq_pill, &RMF_OBD_ID);
352 GOTO(out, rc = -EPROTO);
354 d->opd_last_used_id = *reply;
355 CDEBUG(D_HA, "%s: got last_id "LPU64" from OST\n",
356 d->opd_obd->obd_name, d->opd_last_used_id);
359 ptlrpc_req_finished(req);
365 * asks OST to clean precreate orphans
366 * and gets next id for new objects
368 static int osp_precreate_cleanup_orphans(struct osp_device *d)
370 struct ptlrpc_request *req = NULL;
371 struct obd_import *imp;
372 struct ost_body *body;
377 LASSERT(d->opd_recovery_completed);
378 LASSERT(d->opd_pre_reserved == 0);
380 CDEBUG(D_HA, "%s: going to cleanup orphans since "LPU64"\n",
381 d->opd_obd->obd_name, d->opd_last_used_id);
383 if (d->opd_last_used_id < 2) {
384 /* lastid looks strange... ask OST */
385 rc = osp_get_lastid_from_ost(d);
390 imp = d->opd_obd->u.cli.cl_import;
393 req = ptlrpc_request_alloc(imp, &RQF_OST_CREATE);
395 GOTO(out, rc = -ENOMEM);
397 rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_CREATE);
399 ptlrpc_request_free(req);
403 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
405 GOTO(out, rc = -EPROTO);
407 body->oa.o_flags = OBD_FL_DELORPHAN;
408 body->oa.o_valid = OBD_MD_FLFLAGS | OBD_MD_FLGROUP;
409 body->oa.o_seq = FID_SEQ_OST_MDT0;
411 body->oa.o_id = d->opd_last_used_id;
413 ptlrpc_request_set_replen(req);
415 /* Don't resend the delorphan req */
416 req->rq_no_resend = req->rq_no_delay = 1;
418 rc = ptlrpc_queue_wait(req);
422 body = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
424 GOTO(out, rc = -EPROTO);
427 * OST provides us with id new pool starts from in body->oa.o_id
429 cfs_spin_lock(&d->opd_pre_lock);
430 if (le64_to_cpu(d->opd_last_used_id) > body->oa.o_id) {
431 d->opd_pre_grow_count = OST_MIN_PRECREATE +
432 le64_to_cpu(d->opd_last_used_id) -
434 d->opd_pre_last_created = le64_to_cpu(d->opd_last_used_id) + 1;
436 d->opd_pre_grow_count = OST_MIN_PRECREATE;
437 d->opd_pre_last_created = body->oa.o_id + 1;
439 d->opd_pre_used_id = d->opd_pre_last_created - 1;
440 d->opd_pre_grow_slow = 0;
441 cfs_spin_unlock(&d->opd_pre_lock);
443 CDEBUG(D_HA, "Got last_id "LPU64" from OST, last_used is "LPU64
444 ", next "LPU64"\n", body->oa.o_id,
445 le64_to_cpu(d->opd_last_used_id), d->opd_pre_used_id);
449 ptlrpc_req_finished(req);
455 * the function updates current precreation status used: functional or not
457 * rc is a last code from the transport, rc == 0 meaning transport works
458 * well and users of lod can use objects from this OSP
460 * the status depends on current usage of OST
462 void osp_pre_update_status(struct osp_device *d, int rc)
464 struct obd_statfs *msfs = &d->opd_statfs;
465 int old = d->opd_pre_status;
468 d->opd_pre_status = rc;
472 if (likely(msfs->os_type)) {
473 used = min_t(__u64, (msfs->os_blocks - msfs->os_bfree) >> 10,
475 if ((msfs->os_ffree < 32) || (msfs->os_bavail < used)) {
476 d->opd_pre_status = -ENOSPC;
478 CDEBUG(D_INFO, "%s: status: "LPU64" blocks, "
479 LPU64" free, "LPU64" used, "LPU64" "
480 "avail -> %d: rc = %d\n",
481 d->opd_obd->obd_name, msfs->os_blocks,
482 msfs->os_bfree, used, msfs->os_bavail,
483 d->opd_pre_status, rc);
485 "non-commited changes: %lu, in progress: %u\n",
486 d->opd_syn_changes, d->opd_syn_rpc_in_progress);
487 } else if (old == -ENOSPC) {
488 d->opd_pre_status = 0;
489 d->opd_pre_grow_slow = 0;
490 d->opd_pre_grow_count = OST_MIN_PRECREATE;
491 cfs_waitq_signal(&d->opd_pre_waitq);
492 CDEBUG(D_INFO, "%s: no space: "LPU64" blocks, "LPU64
493 " free, "LPU64" used, "LPU64" avail -> %d: "
494 "rc = %d\n", d->opd_obd->obd_name,
495 msfs->os_blocks, msfs->os_bfree, used,
496 msfs->os_bavail, d->opd_pre_status, rc);
501 cfs_waitq_signal(&d->opd_pre_user_waitq);
504 static int osp_precreate_thread(void *_arg)
506 struct osp_device *d = _arg;
507 struct ptlrpc_thread *thread = &d->opd_pre_thread;
508 struct l_wait_info lwi = { 0 };
514 sprintf(pname, "osp-pre-%u\n", d->opd_index);
515 cfs_daemonize(pname);
517 cfs_spin_lock(&d->opd_pre_lock);
518 thread->t_flags = SVC_RUNNING;
519 cfs_spin_unlock(&d->opd_pre_lock);
520 cfs_waitq_signal(&thread->t_ctl_waitq);
522 while (osp_precreate_running(d)) {
524 * need to be connected to OST
526 while (osp_precreate_running(d)) {
527 l_wait_event(d->opd_pre_waitq,
528 !osp_precreate_running(d) ||
529 d->opd_new_connection, &lwi);
531 if (!osp_precreate_running(d))
534 if (!d->opd_new_connection)
538 d->opd_new_connection = 0;
539 d->opd_got_disconnected = 0;
543 osp_statfs_update(d);
546 * wait for local recovery to finish, so we can cleanup orphans
547 * orphans are all objects since "last used" (assigned), but
548 * there might be objects reserved and in some cases they won't
549 * be used. we can't cleanup them till we're sure they won't be
550 * used. so we block new reservations and wait till all reserved
551 * objects either user or released.
553 l_wait_event(d->opd_pre_waitq, (!d->opd_pre_reserved &&
554 d->opd_recovery_completed) ||
555 !osp_precreate_running(d) ||
556 d->opd_got_disconnected, &lwi);
558 if (osp_precreate_running(d) && !d->opd_got_disconnected) {
559 rc = osp_precreate_cleanup_orphans(d);
561 CERROR("%s: cannot cleanup orphans: rc = %d\n",
562 d->opd_obd->obd_name, rc);
563 /* we can't proceed from here, OST seem to
564 * be in a bad shape, better to wait for
565 * a new instance of the server and repeat
566 * from the beginning. notify possible waiters
567 * this OSP isn't quite functional yet */
568 osp_pre_update_status(d, rc);
569 cfs_waitq_signal(&d->opd_pre_user_waitq);
570 l_wait_event(d->opd_pre_waitq,
571 !osp_precreate_running(d) ||
572 d->opd_new_connection, &lwi);
579 * connected, can handle precreates now
581 while (osp_precreate_running(d)) {
582 l_wait_event(d->opd_pre_waitq,
583 !osp_precreate_running(d) ||
584 osp_precreate_near_empty(d) ||
585 osp_statfs_need_update(d) ||
586 d->opd_got_disconnected, &lwi);
588 if (!osp_precreate_running(d))
591 /* something happened to the connection
592 * have to start from the beginning */
593 if (d->opd_got_disconnected)
596 if (osp_statfs_need_update(d))
597 osp_statfs_update(d);
599 if (osp_precreate_near_empty(d)) {
600 rc = osp_precreate_send(d);
601 /* osp_precreate_send() sets opd_pre_status
602 * in case of error, that prevent the using of
604 if (rc != 0 && rc != -ENOSPC &&
605 rc != -ETIMEDOUT && rc != -ENOTCONN)
606 CERROR("%s: cannot precreate objects:"
608 d->opd_obd->obd_name, rc);
613 thread->t_flags = SVC_STOPPED;
614 cfs_waitq_signal(&thread->t_ctl_waitq);
619 static int osp_precreate_ready_condition(struct osp_device *d)
623 /* ready if got enough precreated objects */
624 /* we need to wait for others (opd_pre_reserved) and our object (+1) */
625 next = d->opd_pre_used_id + d->opd_pre_reserved + 1;
626 if (next <= d->opd_pre_last_created)
629 /* ready if OST reported no space and no destoys in progress */
630 if (d->opd_syn_changes + d->opd_syn_rpc_in_progress == 0 &&
631 d->opd_pre_status != 0)
637 static int osp_precreate_timeout_condition(void *data)
639 struct osp_device *d = data;
641 LCONSOLE_WARN("%s: slow creates, last="LPU64", next="LPU64", "
642 "reserved="LPU64", syn_changes=%lu, "
643 "syn_rpc_in_progress=%d, status=%d\n",
644 d->opd_obd->obd_name, d->opd_pre_last_created,
645 d->opd_pre_used_id, d->opd_pre_reserved,
646 d->opd_syn_changes, d->opd_syn_rpc_in_progress,
653 * called to reserve object in the pool
655 * ENOSPC - no space on corresponded OST
656 * EAGAIN - precreation is in progress, try later
657 * EIO - no access to OST
659 int osp_precreate_reserve(const struct lu_env *env, struct osp_device *d)
661 struct l_wait_info lwi;
662 cfs_time_t expire = cfs_time_shift(obd_timeout);
668 LASSERT(d->opd_pre_last_created >= d->opd_pre_used_id);
670 lwi = LWI_TIMEOUT(cfs_time_seconds(obd_timeout),
671 osp_precreate_timeout_condition, d);
675 * - preallocation is done
676 * - no free space expected soon
677 * - can't connect to OST for too long (obd_timeout)
679 while ((rc = d->opd_pre_status) == 0 || rc == -ENOSPC ||
681 if (unlikely(rc == -ENODEV)) {
682 if (cfs_time_aftereq(cfs_time_current(), expire))
686 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 3, 90, 0)
688 * to address Andreas's concern on possible busy-loop
689 * between this thread and osp_precreate_send()
691 if (unlikely(count++ == 1000)) {
692 osp_precreate_timeout_condition(d);
698 * increase number of precreations
700 if (d->opd_pre_grow_count < d->opd_pre_max_grow_count &&
701 d->opd_pre_grow_slow == 0 &&
702 (d->opd_pre_last_created - d->opd_pre_used_id <=
703 d->opd_pre_grow_count / 4 + 1)) {
704 cfs_spin_lock(&d->opd_pre_lock);
705 d->opd_pre_grow_slow = 1;
706 d->opd_pre_grow_count *= 2;
707 cfs_spin_unlock(&d->opd_pre_lock);
711 * we never use the last object in the window
713 cfs_spin_lock(&d->opd_pre_lock);
714 precreated = d->opd_pre_last_created - d->opd_pre_used_id;
715 if (precreated > d->opd_pre_reserved) {
716 d->opd_pre_reserved++;
717 cfs_spin_unlock(&d->opd_pre_lock);
720 /* XXX: don't wake up if precreation is in progress */
721 if (osp_precreate_near_empty_nolock(d))
722 cfs_waitq_signal(&d->opd_pre_waitq);
726 cfs_spin_unlock(&d->opd_pre_lock);
729 * all precreated objects have been used and no-space
730 * status leave us no chance to succeed very soon
731 * but if there is destroy in progress, then we should
732 * wait till that is done - some space might be released
734 if (unlikely(rc == -ENOSPC)) {
735 if (d->opd_syn_changes) {
736 /* force local commit to release space */
737 dt_commit_async(env, d->opd_storage);
739 if (d->opd_syn_rpc_in_progress) {
740 /* just wait till destroys are done */
741 /* see l_wait_even() few lines below */
743 if (d->opd_syn_changes +
744 d->opd_syn_rpc_in_progress == 0) {
745 /* no hope for free space */
750 /* XXX: don't wake up if precreation is in progress */
751 cfs_waitq_signal(&d->opd_pre_waitq);
753 l_wait_event(d->opd_pre_user_waitq,
754 osp_precreate_ready_condition(d), &lwi);
761 * this function relies on reservation made before
763 __u64 osp_precreate_get_id(struct osp_device *d)
767 /* grab next id from the pool */
768 cfs_spin_lock(&d->opd_pre_lock);
769 LASSERT(d->opd_pre_used_id < d->opd_pre_last_created);
770 objid = ++d->opd_pre_used_id;
771 d->opd_pre_reserved--;
773 * last_used_id must be changed along with getting new id otherwise
774 * we might miscalculate gap causing object loss or leak
776 osp_update_last_id(d, objid);
777 cfs_spin_unlock(&d->opd_pre_lock);
780 * probably main thread suspended orphan cleanup till
781 * all reservations are released, see comment in
782 * osp_precreate_thread() just before orphan cleanup
784 if (unlikely(d->opd_pre_reserved == 0 && d->opd_pre_status))
785 cfs_waitq_signal(&d->opd_pre_waitq);
793 int osp_object_truncate(const struct lu_env *env, struct dt_object *dt,
796 struct osp_device *d = lu2osp_dev(dt->do_lu.lo_dev);
797 struct ptlrpc_request *req = NULL;
798 struct obd_import *imp;
799 struct ost_body *body;
800 struct obdo *oa = NULL;
805 imp = d->opd_obd->u.cli.cl_import;
808 req = ptlrpc_request_alloc(imp, &RQF_OST_PUNCH);
812 /* XXX: capa support? */
813 /* osc_set_capa_size(req, &RMF_CAPA1, capa); */
814 rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_PUNCH);
816 ptlrpc_request_free(req);
821 * XXX: decide how do we do here with resend
822 * if we don't resend, then client may see wrong file size
823 * if we do resend, then MDS thread can get stuck for quite long
825 req->rq_no_resend = req->rq_no_delay = 1;
827 req->rq_request_portal = OST_IO_PORTAL; /* bug 7198 */
828 ptlrpc_at_set_req_timeout(req);
832 GOTO(out, rc = -ENOMEM);
834 rc = fid_ostid_pack(lu_object_fid(&dt->do_lu), &oa->o_oi);
837 oa->o_blocks = OBD_OBJECT_EOF;
838 oa->o_valid = OBD_MD_FLSIZE | OBD_MD_FLBLOCKS |
839 OBD_MD_FLID | OBD_MD_FLGROUP;
841 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
843 lustre_set_wire_obdo(&body->oa, oa);
845 /* XXX: capa support? */
846 /* osc_pack_capa(req, body, capa); */
848 ptlrpc_request_set_replen(req);
850 rc = ptlrpc_queue_wait(req);
852 CERROR("can't punch object: %d\n", rc);
854 ptlrpc_req_finished(req);
860 int osp_init_precreate(struct osp_device *d)
862 struct l_wait_info lwi = { 0 };
867 /* initially precreation isn't ready */
868 d->opd_pre_status = -EAGAIN;
869 d->opd_pre_used_id = 0;
870 d->opd_pre_last_created = 0;
871 d->opd_pre_reserved = 0;
872 d->opd_got_disconnected = 1;
873 d->opd_pre_grow_slow = 0;
874 d->opd_pre_grow_count = OST_MIN_PRECREATE;
875 d->opd_pre_min_grow_count = OST_MIN_PRECREATE;
876 d->opd_pre_max_grow_count = OST_MAX_PRECREATE;
878 cfs_spin_lock_init(&d->opd_pre_lock);
879 cfs_waitq_init(&d->opd_pre_waitq);
880 cfs_waitq_init(&d->opd_pre_user_waitq);
881 cfs_waitq_init(&d->opd_pre_thread.t_ctl_waitq);
884 * Initialize statfs-related things
886 d->opd_statfs_maxage = 5; /* default update interval */
887 d->opd_statfs_fresh_till = cfs_time_shift(-1000);
888 CDEBUG(D_OTHER, "current %llu, fresh till %llu\n",
889 (unsigned long long)cfs_time_current(),
890 (unsigned long long)d->opd_statfs_fresh_till);
891 cfs_timer_init(&d->opd_statfs_timer, osp_statfs_timer_cb, d);
894 * start thread handling precreation and statfs updates
896 rc = cfs_create_thread(osp_precreate_thread, d, 0);
898 CERROR("can't start precreate thread %d\n", rc);
902 l_wait_event(d->opd_pre_thread.t_ctl_waitq,
903 osp_precreate_running(d) || osp_precreate_stopped(d),
909 void osp_precreate_fini(struct osp_device *d)
911 struct ptlrpc_thread *thread = &d->opd_pre_thread;
915 cfs_timer_disarm(&d->opd_statfs_timer);
917 thread->t_flags = SVC_STOPPING;
918 cfs_waitq_signal(&d->opd_pre_waitq);
920 cfs_wait_event(thread->t_ctl_waitq, thread->t_flags & SVC_STOPPED);