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) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2012, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/ofd/ofd_obd.c
38 * Author: Andreas Dilger <adilger@whamcloud.com>
39 * Author: Alex Zhuravlev <bzzz@whamcloud.com>
40 * Author: Mike Pershin <tappro@whamcloud.com>
43 #define DEBUG_SUBSYSTEM S_FILTER
45 #include "ofd_internal.h"
46 #include <obd_cksum.h>
47 #include <lustre_quota.h>
49 static int ofd_export_stats_init(struct ofd_device *ofd,
50 struct obd_export *exp, void *client_nid)
52 struct obd_device *obd = ofd_obd(ofd);
53 struct nid_stat *stats;
59 if (obd_uuid_equals(&exp->exp_client_uuid, &obd->obd_uuid))
60 /* Self-export gets no proc entry */
63 rc = lprocfs_exp_setup(exp, client_nid, &newnid);
65 /* Mask error for already created
75 stats = exp->exp_nid_stats;
76 LASSERT(stats != NULL);
78 OBD_ALLOC(stats->nid_brw_stats, sizeof(struct brw_stats));
79 if (stats->nid_brw_stats == NULL)
80 GOTO(clean, rc = -ENOMEM);
82 for (i = 0; i < BRW_LAST; i++)
83 spin_lock_init(&stats->nid_brw_stats->hist[i].oh_lock);
85 rc = lprocfs_seq_create(stats->nid_proc, "brw_stats", 0644,
86 &ofd_per_nid_stats_fops, stats);
88 CWARN("Error adding the brw_stats file\n");
90 num_stats = (sizeof(*obd->obd_type->typ_dt_ops) / sizeof(void *)) +
93 stats->nid_stats = lprocfs_alloc_stats(num_stats,
94 LPROCFS_STATS_FLAG_NOPERCPU);
95 if (stats->nid_stats == NULL)
98 lprocfs_init_ops_stats(LPROC_OFD_LAST, stats->nid_stats);
99 lprocfs_counter_init(stats->nid_stats, LPROC_OFD_READ_BYTES,
100 LPROCFS_CNTR_AVGMINMAX, "read_bytes", "bytes");
101 lprocfs_counter_init(stats->nid_stats, LPROC_OFD_WRITE_BYTES,
102 LPROCFS_CNTR_AVGMINMAX, "write_bytes", "bytes");
104 rc = lprocfs_register_stats(stats->nid_proc, "stats",
109 rc = lprocfs_nid_ldlm_stats_init(stats);
111 lprocfs_free_stats(&stats->nid_stats);
120 static int ofd_parse_connect_data(const struct lu_env *env,
121 struct obd_export *exp,
122 struct obd_connect_data *data)
124 struct ofd_device *ofd = ofd_exp(exp);
125 struct filter_export_data *fed = &exp->exp_filter_data;
130 CDEBUG(D_RPCTRACE, "%s: cli %s/%p ocd_connect_flags: "LPX64
131 " ocd_version: %x ocd_grant: %d ocd_index: %u\n",
132 exp->exp_obd->obd_name, exp->exp_client_uuid.uuid, exp,
133 data->ocd_connect_flags, data->ocd_version,
134 data->ocd_grant, data->ocd_index);
136 if (fed->fed_group != 0 && fed->fed_group != data->ocd_group) {
137 CWARN("!!! This export (nid %s) used object group %d "
138 "earlier; now it's trying to use group %d! This could "
139 "be a bug in the MDS. Please report to "
140 "http://bugs.whamcloud.com/\n",
141 obd_export_nid2str(exp), fed->fed_group,
145 fed->fed_group = data->ocd_group;
147 data->ocd_connect_flags &= OST_CONNECT_SUPPORTED;
148 exp->exp_connect_flags = data->ocd_connect_flags;
149 data->ocd_version = LUSTRE_VERSION_CODE;
151 /* Kindly make sure the SKIP_ORPHAN flag is from MDS. */
152 if (data->ocd_connect_flags & OBD_CONNECT_MDS)
153 CDEBUG(D_HA, "%s: Received MDS connection for group %u\n",
154 exp->exp_obd->obd_name, data->ocd_group);
155 else if (data->ocd_connect_flags & OBD_CONNECT_SKIP_ORPHAN)
158 if (ofd_grant_param_supp(exp)) {
159 exp->exp_filter_data.fed_pagesize = data->ocd_blocksize;
160 /* ocd_{blocksize,inodespace} are log2 values */
161 data->ocd_blocksize = ofd->ofd_blockbits;
162 data->ocd_inodespace = ofd->ofd_dt_conf.ddp_inodespace;
163 /* ocd_grant_extent is in 1K blocks */
164 data->ocd_grant_extent = ofd->ofd_dt_conf.ddp_grant_frag >> 10;
167 if (exp->exp_connect_flags & OBD_CONNECT_GRANT)
168 data->ocd_grant = ofd_grant_connect(env, exp, data->ocd_grant);
170 if (data->ocd_connect_flags & OBD_CONNECT_INDEX) {
171 struct lr_server_data *lsd = &ofd->ofd_lut.lut_lsd;
172 int index = lsd->lsd_osd_index;
174 if (index != data->ocd_index) {
175 LCONSOLE_ERROR_MSG(0x136, "Connection from %s to index"
176 " %u doesn't match actual OST index"
177 " %u in last_rcvd file, bad "
179 obd_export_nid2str(exp), index,
183 if (!(lsd->lsd_feature_compat & OBD_COMPAT_OST)) {
184 /* this will only happen on the first connect */
185 lsd->lsd_feature_compat |= OBD_COMPAT_OST;
186 /* sync is not needed here as lut_client_add will
187 * set exp_need_sync flag */
188 tgt_server_data_update(env, &ofd->ofd_lut, 0);
191 if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_SIZE)) {
192 data->ocd_brw_size = 65536;
193 } else if (data->ocd_connect_flags & OBD_CONNECT_BRW_SIZE) {
194 data->ocd_brw_size = min(data->ocd_brw_size,
195 (__u32)(PTLRPC_MAX_BRW_PAGES << CFS_PAGE_SHIFT));
196 if (data->ocd_brw_size == 0) {
197 CERROR("%s: cli %s/%p ocd_connect_flags: "LPX64
198 " ocd_version: %x ocd_grant: %d ocd_index: %u "
199 "ocd_brw_size is unexpectedly zero, "
200 "network data corruption?"
201 "Refusing connection of this client\n",
202 exp->exp_obd->obd_name,
203 exp->exp_client_uuid.uuid,
204 exp, data->ocd_connect_flags, data->ocd_version,
205 data->ocd_grant, data->ocd_index);
210 if (data->ocd_connect_flags & OBD_CONNECT_CKSUM) {
211 __u32 cksum_types = data->ocd_cksum_types;
213 /* The client set in ocd_cksum_types the checksum types it
214 * supports. We have to mask off the algorithms that we don't
216 data->ocd_cksum_types &= cksum_types_supported_server();
218 if (unlikely(data->ocd_cksum_types == 0)) {
219 CERROR("%s: Connect with checksum support but no "
220 "ocd_cksum_types is set\n",
221 exp->exp_obd->obd_name);
225 CDEBUG(D_RPCTRACE, "%s: cli %s supports cksum type %x, return "
226 "%x\n", exp->exp_obd->obd_name, obd_export_nid2str(exp),
227 cksum_types, data->ocd_cksum_types);
229 /* This client does not support OBD_CONNECT_CKSUM
230 * fall back to CRC32 */
231 CDEBUG(D_RPCTRACE, "%s: cli %s does not support "
232 "OBD_CONNECT_CKSUM, CRC32 will be used\n",
233 exp->exp_obd->obd_name, obd_export_nid2str(exp));
236 if (data->ocd_connect_flags & OBD_CONNECT_MAXBYTES)
237 data->ocd_maxbytes = ofd->ofd_dt_conf.ddp_maxbytes;
242 static int ofd_obd_reconnect(const struct lu_env *env, struct obd_export *exp,
243 struct obd_device *obd, struct obd_uuid *cluuid,
244 struct obd_connect_data *data, void *localdata)
246 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
251 if (exp == NULL || obd == NULL || cluuid == NULL)
254 rc = lu_env_refill((struct lu_env *)env);
256 CERROR("Failure to refill session: '%d'\n", rc);
260 ofd_info_init(env, exp);
261 rc = ofd_parse_connect_data(env, exp, data);
263 ofd_export_stats_init(ofd, exp, localdata);
268 static int ofd_obd_connect(const struct lu_env *env, struct obd_export **_exp,
269 struct obd_device *obd, struct obd_uuid *cluuid,
270 struct obd_connect_data *data, void *localdata)
272 struct obd_export *exp;
273 struct ofd_device *ofd;
274 struct lustre_handle conn = { 0 };
278 if (_exp == NULL || obd == NULL || cluuid == NULL)
281 ofd = ofd_dev(obd->obd_lu_dev);
283 rc = class_connect(&conn, obd, cluuid);
287 exp = class_conn2export(&conn);
288 LASSERT(exp != NULL);
290 rc = lu_env_refill((struct lu_env *)env);
292 CERROR("Failure to refill session: '%d'\n", rc);
296 ofd_info_init(env, exp);
298 rc = ofd_parse_connect_data(env, exp, data);
302 if (obd->obd_replayable) {
303 struct tg_export_data *ted = &exp->exp_target_data;
305 memcpy(ted->ted_lcd->lcd_uuid, cluuid,
306 sizeof(ted->ted_lcd->lcd_uuid));
307 rc = tgt_client_new(env, exp);
310 ofd_export_stats_init(ofd, exp, localdata);
313 CDEBUG(D_HA, "%s: get connection from MDS %d\n", obd->obd_name,
318 class_disconnect(exp);
326 static int ofd_obd_disconnect(struct obd_export *exp)
328 struct ofd_device *ofd = ofd_dev(exp->exp_obd->obd_lu_dev);
335 class_export_get(exp);
337 if (!(exp->exp_flags & OBD_OPT_FORCE))
338 ofd_grant_sanity_check(ofd_obd(ofd), __FUNCTION__);
340 rc = server_disconnect_export(exp);
342 ofd_grant_discard(exp);
344 rc = lu_env_init(&env, LCT_DT_THREAD);
348 /* Do not erase record for recoverable client. */
349 if (exp->exp_obd->obd_replayable &&
350 (!exp->exp_obd->obd_fail || exp->exp_failed))
351 tgt_client_del(&env, exp);
354 class_export_put(exp);
358 static int ofd_init_export(struct obd_export *exp)
362 spin_lock_init(&exp->exp_filter_data.fed_lock);
363 CFS_INIT_LIST_HEAD(&exp->exp_filter_data.fed_mod_list);
364 spin_lock(&exp->exp_lock);
365 exp->exp_connecting = 1;
366 spin_unlock(&exp->exp_lock);
368 /* self-export doesn't need client data and ldlm initialization */
369 if (unlikely(obd_uuid_equals(&exp->exp_obd->obd_uuid,
370 &exp->exp_client_uuid)))
373 rc = tgt_client_alloc(exp);
375 ldlm_init_export(exp);
377 CERROR("%s: Can't initialize export: rc %d\n",
378 exp->exp_obd->obd_name, rc);
382 static int ofd_destroy_export(struct obd_export *exp)
384 struct ofd_device *ofd = ofd_dev(exp->exp_obd->obd_lu_dev);
386 if (exp->exp_filter_data.fed_pending)
387 CERROR("%s: cli %s/%p has %lu pending on destroyed export"
388 "\n", exp->exp_obd->obd_name, exp->exp_client_uuid.uuid,
389 exp, exp->exp_filter_data.fed_pending);
391 target_destroy_export(exp);
393 if (unlikely(obd_uuid_equals(&exp->exp_obd->obd_uuid,
394 &exp->exp_client_uuid)))
397 ldlm_destroy_export(exp);
398 tgt_client_free(exp);
400 ofd_fmd_cleanup(exp);
403 * discard grants once we're sure no more
404 * interaction with the client is possible
406 ofd_grant_discard(exp);
407 ofd_fmd_cleanup(exp);
409 if (exp->exp_connect_flags & OBD_CONNECT_GRANT_SHRINK) {
410 if (ofd->ofd_tot_granted_clients > 0)
411 ofd->ofd_tot_granted_clients --;
414 if (!(exp->exp_flags & OBD_OPT_FORCE))
415 ofd_grant_sanity_check(exp->exp_obd, __FUNCTION__);
417 LASSERT(cfs_list_empty(&exp->exp_filter_data.fed_mod_list));
421 int ofd_postrecov(const struct lu_env *env, struct ofd_device *ofd)
423 struct lu_device *ldev = &ofd->ofd_dt_dev.dd_lu_dev;
425 CDEBUG(D_HA, "%s: recovery is over\n", ofd_obd(ofd)->obd_name);
426 return ldev->ld_ops->ldo_recovery_complete(env, ldev);
429 int ofd_obd_postrecov(struct obd_device *obd)
432 struct lu_device *ldev = obd->obd_lu_dev;
437 rc = lu_env_init(&env, LCT_DT_THREAD);
440 ofd_info_init(&env, obd->obd_self_export);
442 rc = ofd_postrecov(&env, ofd_dev(ldev));
448 static int ofd_adapt_sptlrpc_conf(const struct lu_env *env,
449 struct obd_device *obd, int initial)
451 struct filter_obd *fo = &obd->u.filter;
452 struct sptlrpc_rule_set tmp_rset;
455 sptlrpc_rule_set_init(&tmp_rset);
456 rc = sptlrpc_conf_target_get_rules(obd, &tmp_rset, initial);
458 CERROR("%s: failed get sptlrpc rules: rc = %d\n",
463 sptlrpc_target_update_exp_flavor(obd, &tmp_rset);
465 write_lock(&fo->fo_sptlrpc_lock);
466 sptlrpc_rule_set_free(&fo->fo_sptlrpc_rset);
467 fo->fo_sptlrpc_rset = tmp_rset;
468 write_unlock(&fo->fo_sptlrpc_lock);
473 static int ofd_set_mds_conn(struct obd_export *exp, void *val)
479 LCONSOLE_WARN("%s: received MDS connection from %s\n",
480 exp->exp_obd->obd_name, obd_export_nid2str(exp));
484 static int ofd_set_info_async(const struct lu_env *env, struct obd_export *exp,
485 __u32 keylen, void *key, __u32 vallen, void *val,
486 struct ptlrpc_request_set *set)
488 struct ofd_device *ofd = ofd_exp(exp);
493 if (exp->exp_obd == NULL) {
494 CDEBUG(D_IOCTL, "invalid export %p\n", exp);
498 if (KEY_IS(KEY_CAPA_KEY)) {
499 rc = ofd_update_capa_key(ofd, val);
501 CERROR("%s: update capability key failed: rc = %d\n",
502 exp->exp_obd->obd_name, rc);
503 } else if (KEY_IS(KEY_SPTLRPC_CONF)) {
504 ofd_adapt_sptlrpc_conf(env, exp->exp_obd, 0);
505 } else if (KEY_IS(KEY_MDS_CONN)) {
506 rc = ofd_set_mds_conn(exp, val);
507 } else if (KEY_IS(KEY_GRANT_SHRINK)) {
508 struct ost_body *body = val;
510 ofd_info_init(env, exp);
511 /** handle grant shrink, similar to a read request */
512 ofd_grant_prepare_read(env, exp, &body->oa);
514 CERROR("%s: Unsupported key %s\n",
515 exp->exp_obd->obd_name, (char*)key);
522 static int ofd_get_info(const struct lu_env *env, struct obd_export *exp,
523 __u32 keylen, void *key, __u32 *vallen, void *val,
524 struct lov_stripe_md *lsm)
526 struct ofd_device *ofd = ofd_exp(exp);
531 if (exp->exp_obd == NULL) {
532 CDEBUG(D_IOCTL, "invalid client export %p\n", exp);
536 if (KEY_IS(KEY_BLOCKSIZE)) {
537 __u32 *blocksize = val;
539 if (*vallen < sizeof(*blocksize))
541 *blocksize = 1 << ofd->ofd_dt_conf.ddp_block_shift;
543 *vallen = sizeof(*blocksize);
544 } else if (KEY_IS(KEY_BLOCKSIZE_BITS)) {
545 __u32 *blocksize_bits = val;
546 if (blocksize_bits) {
547 if (*vallen < sizeof(*blocksize_bits))
549 *blocksize_bits = ofd->ofd_dt_conf.ddp_block_shift;
551 *vallen = sizeof(*blocksize_bits);
552 } else if (KEY_IS(KEY_LAST_ID)) {
553 obd_id *last_id = val;
554 struct ofd_seq *oseq;
557 *vallen = sizeof(obd_id);
560 ofd_info_init(env, exp);
561 oseq = ofd_seq_load(env, ofd,
562 (obd_seq)exp->exp_filter_data.fed_group);
563 LASSERT(oseq != NULL);
565 if (*vallen < sizeof(*last_id)) {
566 ofd_seq_put(env, oseq);
569 *last_id = ofd_seq_last_oid(oseq);
571 ofd_seq_put(env, oseq);
572 *vallen = sizeof(*last_id);
573 } else if (KEY_IS(KEY_FIEMAP)) {
574 struct ofd_thread_info *info;
575 struct ofd_device *ofd = ofd_exp(exp);
576 struct ofd_object *fo;
577 struct ll_fiemap_info_key *fm_key = key;
580 *vallen = fiemap_count_to_size(
581 fm_key->fiemap.fm_extent_count);
585 info = ofd_info_init(env, exp);
587 fid_ostid_unpack(&info->fti_fid, &fm_key->oa.o_oi, 0);
589 CDEBUG(D_INODE, "get FIEMAP of object "DFID"\n",
590 PFID(&info->fti_fid));
592 fo = ofd_object_find(env, ofd, &info->fti_fid);
594 CERROR("%s: error finding object "DFID"\n",
595 exp->exp_obd->obd_name, PFID(&info->fti_fid));
598 struct ll_user_fiemap *fiemap = val;
600 ofd_read_lock(env, fo);
601 if (ofd_object_exists(fo)) {
602 *fiemap = fm_key->fiemap;
603 rc = dt_fiemap_get(env,
604 ofd_object_child(fo),
609 ofd_read_unlock(env, fo);
610 ofd_object_put(env, fo);
612 } else if (KEY_IS(KEY_SYNC_LOCK_CANCEL)) {
613 *((__u32 *) val) = ofd->ofd_sync_lock_cancel;
614 *vallen = sizeof(__u32);
616 CERROR("Not supported key %s\n", (char*)key);
623 /** helper function for statfs, also used by grant code */
624 int ofd_statfs_internal(const struct lu_env *env, struct ofd_device *ofd,
625 struct obd_statfs *osfs, __u64 max_age, int *from_cache)
629 spin_lock(&ofd->ofd_osfs_lock);
630 if (cfs_time_before_64(ofd->ofd_osfs_age, max_age) || max_age == 0) {
633 /* statfs data are too old, get up-to-date one.
634 * we must be cautious here since multiple threads might be
635 * willing to update statfs data concurrently and we must
636 * grant that cached statfs data are always consistent */
638 if (ofd->ofd_statfs_inflight == 0)
639 /* clear inflight counter if no users, although it would
640 * take a while to overflow this 64-bit counter ... */
641 ofd->ofd_osfs_inflight = 0;
642 /* notify ofd_grant_commit() that we want to track writes
643 * completed as of now */
644 ofd->ofd_statfs_inflight++;
645 /* record value of inflight counter before running statfs to
646 * compute the diff once statfs is completed */
647 unstable = ofd->ofd_osfs_inflight;
648 spin_unlock(&ofd->ofd_osfs_lock);
650 /* statfs can sleep ... hopefully not for too long since we can
651 * call it fairly often as space fills up */
652 rc = dt_statfs(env, ofd->ofd_osd, osfs);
656 spin_lock(&ofd->ofd_grant_lock);
657 spin_lock(&ofd->ofd_osfs_lock);
658 /* calculate how much space was written while we released the
660 unstable = ofd->ofd_osfs_inflight - unstable;
661 ofd->ofd_osfs_unstable = 0;
663 /* some writes completed while we were running statfs
664 * w/o the ofd_osfs_lock. Those ones got added to
665 * the cached statfs data that we are about to crunch.
666 * Take them into account in the new statfs data */
667 osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
668 unstable >> ofd->ofd_blockbits);
669 /* However, we don't really know if those writes got
670 * accounted in the statfs call, so tell
671 * ofd_grant_space_left() there is some uncertainty
672 * on the accounting of those writes.
673 * The purpose is to prevent spurious error messages in
674 * ofd_grant_space_left() since those writes might be
675 * accounted twice. */
676 ofd->ofd_osfs_unstable += unstable;
678 /* similarly, there is some uncertainty on write requests
679 * between prepare & commit */
680 ofd->ofd_osfs_unstable += ofd->ofd_tot_pending;
681 spin_unlock(&ofd->ofd_grant_lock);
683 /* finally udpate cached statfs data */
684 ofd->ofd_osfs = *osfs;
685 ofd->ofd_osfs_age = cfs_time_current_64();
687 ofd->ofd_statfs_inflight--; /* stop tracking */
688 if (ofd->ofd_statfs_inflight == 0)
689 ofd->ofd_osfs_inflight = 0;
690 spin_unlock(&ofd->ofd_osfs_lock);
695 /* use cached statfs data */
696 *osfs = ofd->ofd_osfs;
697 spin_unlock(&ofd->ofd_osfs_lock);
704 static int ofd_statfs(const struct lu_env *env, struct obd_export *exp,
705 struct obd_statfs *osfs, __u64 max_age, __u32 flags)
707 struct obd_device *obd = class_exp2obd(exp);
708 struct ofd_device *ofd = ofd_dev(exp->exp_obd->obd_lu_dev);
713 rc = ofd_statfs_internal(env, ofd, osfs, max_age, NULL);
717 /* at least try to account for cached pages. its still racy and
718 * might be under-reporting if clients haven't announced their
719 * caches with brw recently */
721 CDEBUG(D_SUPER | D_CACHE, "blocks cached "LPU64" granted "LPU64
722 " pending "LPU64" free "LPU64" avail "LPU64"\n",
723 ofd->ofd_tot_dirty, ofd->ofd_tot_granted, ofd->ofd_tot_pending,
724 osfs->os_bfree << ofd->ofd_blockbits,
725 osfs->os_bavail << ofd->ofd_blockbits);
727 osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
728 ((ofd->ofd_tot_dirty + ofd->ofd_tot_pending +
729 osfs->os_bsize - 1) >> ofd->ofd_blockbits));
731 /* The QoS code on the MDS does not care about space reserved for
732 * precreate, so take it out. */
733 if (exp->exp_connect_flags & OBD_CONNECT_MDS) {
734 struct filter_export_data *fed;
736 fed = &obd->obd_self_export->exp_filter_data;
737 osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
738 fed->fed_grant >> ofd->ofd_blockbits);
741 ofd_grant_sanity_check(obd, __FUNCTION__);
742 CDEBUG(D_CACHE, LPU64" blocks: "LPU64" free, "LPU64" avail; "
743 LPU64" objects: "LPU64" free; state %x\n",
744 osfs->os_blocks, osfs->os_bfree, osfs->os_bavail,
745 osfs->os_files, osfs->os_ffree, osfs->os_state);
747 if (OBD_FAIL_CHECK_VALUE(OBD_FAIL_OST_ENOINO,
748 ofd->ofd_lut.lut_lsd.lsd_osd_index))
751 /* OS_STATE_READONLY can be set by OSD already */
752 if (ofd->ofd_raid_degraded)
753 osfs->os_state |= OS_STATE_DEGRADED;
755 if (obd->obd_self_export != exp && ofd_grant_compat(exp, ofd)) {
756 /* clients which don't support OBD_CONNECT_GRANT_PARAM
757 * should not see a block size > page size, otherwise
758 * cl_lost_grant goes mad. Therefore, we emulate a 4KB (=2^12)
759 * block size which is the biggest block size known to work
760 * with all client's page size. */
761 osfs->os_blocks <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
762 osfs->os_bfree <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
763 osfs->os_bavail <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
764 osfs->os_bsize = 1 << COMPAT_BSIZE_SHIFT;
767 if (OBD_FAIL_CHECK_VALUE(OBD_FAIL_OST_ENOSPC,
768 ofd->ofd_lut.lut_lsd.lsd_osd_index))
769 osfs->os_bfree = osfs->os_bavail = 2;
776 int ofd_setattr(const struct lu_env *env, struct obd_export *exp,
777 struct obd_info *oinfo, struct obd_trans_info *oti)
779 struct ofd_thread_info *info;
780 struct ofd_device *ofd = ofd_exp(exp);
781 struct ldlm_namespace *ns = ofd->ofd_namespace;
782 struct ldlm_resource *res;
783 struct ofd_object *fo;
784 struct obdo *oa = oinfo->oi_oa;
785 struct filter_fid *ff = NULL;
790 info = ofd_info_init(env, exp);
791 ofd_oti2info(info, oti);
793 fid_ostid_unpack(&info->fti_fid, &oinfo->oi_oa->o_oi, 0);
794 ofd_build_resid(&info->fti_fid, &info->fti_resid);
796 rc = ofd_auth_capa(exp, &info->fti_fid, oa->o_seq,
797 oinfo_capa(oinfo), CAPA_OPC_META_WRITE);
801 /* This would be very bad - accidentally truncating a file when
802 * changing the time or similar - bug 12203. */
803 if (oinfo->oi_oa->o_valid & OBD_MD_FLSIZE &&
804 oinfo->oi_policy.l_extent.end != OBD_OBJECT_EOF) {
805 static char mdsinum[48];
807 if (oinfo->oi_oa->o_valid & OBD_MD_FLFID)
808 snprintf(mdsinum, sizeof(mdsinum) - 1,
809 "of parent "DFID, oinfo->oi_oa->o_parent_seq,
810 oinfo->oi_oa->o_parent_oid, 0);
814 CERROR("%s: setattr from %s trying to truncate object "DFID
815 " %s\n", exp->exp_obd->obd_name,
816 obd_export_nid2str(exp), PFID(&info->fti_fid), mdsinum);
817 GOTO(out, rc = -EPERM);
820 fo = ofd_object_find(env, ofd, &info->fti_fid);
822 CERROR("%s: can't find object "DFID"\n",
823 exp->exp_obd->obd_name, PFID(&info->fti_fid));
824 GOTO(out, rc = PTR_ERR(fo));
827 la_from_obdo(&info->fti_attr, oinfo->oi_oa, oinfo->oi_oa->o_valid);
828 info->fti_attr.la_valid &= ~LA_TYPE;
830 if (oa->o_valid & OBD_MD_FLFID) {
831 ff = &info->fti_mds_fid;
832 ofd_prepare_fidea(ff, oa);
835 /* setting objects attributes (including owner/group) */
836 rc = ofd_attr_set(env, fo, &info->fti_attr, ff);
838 GOTO(out_unlock, rc);
840 res = ldlm_resource_get(ns, NULL, &info->fti_resid, LDLM_EXTENT, 0);
842 ldlm_res_lvbo_update(res, NULL, 0);
843 ldlm_resource_putref(res);
846 oinfo->oi_oa->o_valid = OBD_MD_FLID;
848 /* Quota release needs uid/gid info */
849 rc = ofd_attr_get(env, fo, &info->fti_attr);
850 obdo_from_la(oinfo->oi_oa, &info->fti_attr,
851 OFD_VALID_FLAGS | LA_UID | LA_GID);
852 ofd_info2oti(info, oti);
854 ofd_counter_incr(exp, LPROC_OFD_STATS_SETATTR, oti->oti_jobid, 1);
857 ofd_object_put(env, fo);
862 static int ofd_punch(const struct lu_env *env, struct obd_export *exp,
863 struct obd_info *oinfo, struct obd_trans_info *oti,
864 struct ptlrpc_request_set *rqset)
866 struct ofd_thread_info *info;
867 struct ofd_device *ofd = ofd_exp(exp);
868 struct ldlm_namespace *ns = ofd->ofd_namespace;
869 struct ldlm_resource *res;
870 struct ofd_object *fo;
871 struct filter_fid *ff = NULL;
876 info = ofd_info_init(env, exp);
877 ofd_oti2info(info, oti);
879 fid_ostid_unpack(&info->fti_fid, &oinfo->oi_oa->o_oi, 0);
880 ofd_build_resid(&info->fti_fid, &info->fti_resid);
882 CDEBUG(D_INODE, "calling punch for object "DFID", valid = "LPX64
883 ", start = "LPD64", end = "LPD64"\n", PFID(&info->fti_fid),
884 oinfo->oi_oa->o_valid, oinfo->oi_policy.l_extent.start,
885 oinfo->oi_policy.l_extent.end);
887 rc = ofd_auth_capa(exp, &info->fti_fid, oinfo->oi_oa->o_seq,
888 oinfo_capa(oinfo), CAPA_OPC_OSS_TRUNC);
892 fo = ofd_object_find(env, ofd, &info->fti_fid);
894 CERROR("%s: error finding object "DFID": rc = %ld\n",
895 exp->exp_obd->obd_name, PFID(&info->fti_fid),
897 GOTO(out_env, rc = PTR_ERR(fo));
900 LASSERT(oinfo->oi_policy.l_extent.end == OBD_OBJECT_EOF);
901 if (oinfo->oi_policy.l_extent.end == OBD_OBJECT_EOF) {
903 oinfo->oi_oa->o_size = oinfo->oi_policy.l_extent.start;
904 } else if (oinfo->oi_policy.l_extent.end >= oinfo->oi_oa->o_size) {
905 oinfo->oi_oa->o_size = oinfo->oi_policy.l_extent.end;
908 la_from_obdo(&info->fti_attr, oinfo->oi_oa,
909 OBD_MD_FLMTIME | OBD_MD_FLATIME | OBD_MD_FLCTIME);
910 info->fti_attr.la_valid &= ~LA_TYPE;
911 info->fti_attr.la_size = oinfo->oi_policy.l_extent.start;
912 info->fti_attr.la_valid |= LA_SIZE;
914 if (oinfo->oi_oa->o_valid & OBD_MD_FLFID) {
915 ff = &info->fti_mds_fid;
916 ofd_prepare_fidea(ff, oinfo->oi_oa);
919 rc = ofd_object_punch(env, fo, oinfo->oi_policy.l_extent.start,
920 oinfo->oi_policy.l_extent.end, &info->fti_attr,
925 res = ldlm_resource_get(ns, NULL, &info->fti_resid, LDLM_EXTENT, 0);
927 ldlm_res_lvbo_update(res, NULL, 0);
928 ldlm_resource_putref(res);
931 oinfo->oi_oa->o_valid = OBD_MD_FLID;
932 /* Quota release needs uid/gid info */
933 rc = ofd_attr_get(env, fo, &info->fti_attr);
934 obdo_from_la(oinfo->oi_oa, &info->fti_attr,
935 OFD_VALID_FLAGS | LA_UID | LA_GID);
936 ofd_info2oti(info, oti);
938 ofd_counter_incr(exp, LPROC_OFD_STATS_PUNCH, oti->oti_jobid, 1);
941 ofd_object_put(env, fo);
946 static int ofd_destroy_by_fid(const struct lu_env *env,
947 struct ofd_device *ofd,
948 const struct lu_fid *fid, int orphan)
950 struct ofd_thread_info *info = ofd_info(env);
951 struct lustre_handle lockh;
952 __u64 flags = LDLM_AST_DISCARD_DATA, rc = 0;
953 ldlm_policy_data_t policy = {
954 .l_extent = { 0, OBD_OBJECT_EOF }
956 struct ofd_object *fo;
960 fo = ofd_object_find(env, ofd, fid);
964 /* Tell the clients that the object is gone now and that they should
965 * throw away any cached pages. */
966 ofd_build_resid(fid, &info->fti_resid);
967 rc = ldlm_cli_enqueue_local(ofd->ofd_namespace, &info->fti_resid,
968 LDLM_EXTENT, &policy, LCK_PW, &flags,
969 ldlm_blocking_ast, ldlm_completion_ast,
970 NULL, NULL, 0, LVB_T_NONE, NULL, &lockh);
972 /* We only care about the side-effects, just drop the lock. */
974 ldlm_lock_decref(&lockh, LCK_PW);
978 rc = ofd_object_destroy(env, fo, orphan);
980 ofd_object_put(env, fo);
984 int ofd_destroy(const struct lu_env *env, struct obd_export *exp,
985 struct obdo *oa, struct lov_stripe_md *md,
986 struct obd_trans_info *oti, struct obd_export *md_exp,
989 struct ofd_device *ofd = ofd_exp(exp);
990 struct ofd_thread_info *info;
996 info = ofd_info_init(env, exp);
997 ofd_oti2info(info, oti);
999 if (!(oa->o_valid & OBD_MD_FLGROUP))
1002 /* check that o_misc makes sense */
1003 if (oa->o_valid & OBD_MD_FLOBJCOUNT)
1006 count = 1; /* default case - single destroy */
1009 * There can be sequence of objects to destroy. Therefore this request
1010 * may have multiple transaction involved in. It is OK, we need only
1011 * the highest used transno to be reported back in reply but not for
1012 * replays, they must report their transno
1014 if (info->fti_transno == 0) /* not replay */
1015 info->fti_mult_trans = 1;
1019 fid_ostid_unpack(&info->fti_fid, &oa->o_oi, 0);
1020 lrc = ofd_destroy_by_fid(env, ofd, &info->fti_fid, 0);
1021 if (lrc == -ENOENT) {
1023 "%s: destroying non-existent object "DFID"\n",
1024 ofd_obd(ofd)->obd_name, PFID(&info->fti_fid));
1025 /* rewrite rc with -ENOENT only if it is 0 */
1028 } else if (lrc != 0) {
1029 CERROR("%s: error destroying object "DFID": %d\n",
1030 ofd_obd(ofd)->obd_name, PFID(&info->fti_fid),
1038 /* if we have transaction then there were some deletions, we don't
1039 * need to return ENOENT in that case because it will not wait
1040 * for commit of these deletions. The ENOENT must be returned only
1041 * if there were no transations.
1043 if (rc == -ENOENT) {
1044 if (info->fti_transno != 0)
1046 } else if (rc != 0) {
1048 * If we have at least one transaction then llog record
1049 * on server will be removed upon commit, so for rc != 0
1050 * we return no transno and llog record will be reprocessed.
1052 info->fti_transno = 0;
1054 ofd_info2oti(info, oti);
1058 static int ofd_orphans_destroy(const struct lu_env *env,
1059 struct obd_export *exp, struct ofd_device *ofd,
1062 struct ofd_thread_info *info = ofd_info(env);
1066 struct ost_id oi = oa->o_oi;
1067 struct ofd_seq *oseq;
1071 oseq = ofd_seq_get(ofd, oa->o_seq);
1073 CERROR("%s: Can not find seq for "LPU64":"LPU64"\n",
1074 ofd_name(ofd), oa->o_seq, oa->o_id);
1078 LASSERT(exp != NULL);
1079 skip_orphan = !!(exp->exp_connect_flags & OBD_CONNECT_SKIP_ORPHAN);
1081 last = ofd_seq_last_oid(oseq);
1082 LCONSOLE_INFO("%s: deleting orphan objects from "LPX64":"LPU64
1083 " to "LPU64"\n", ofd_name(ofd), oa->o_seq,
1084 oa->o_id + 1, last);
1086 for (oi.oi_id = last; oi.oi_id > oa->o_id; oi.oi_id--) {
1087 fid_ostid_unpack(&info->fti_fid, &oi, 0);
1088 rc = ofd_destroy_by_fid(env, ofd, &info->fti_fid, 1);
1089 if (rc && rc != -ENOENT) /* this is pretty fatal... */
1090 CEMERG("error destroying precreated id "LPU64": %d\n",
1093 ofd_seq_last_oid_set(oseq, oi.oi_id - 1);
1094 /* update last_id on disk periodically so that if we
1095 * restart * we don't need to re-scan all of the just
1096 * deleted objects. */
1097 if ((oi.oi_id & 511) == 0)
1098 ofd_seq_last_oid_write(env, ofd, oseq);
1101 CDEBUG(D_HA, "%s: after destroy: set last_objids["LPU64"] = "LPU64"\n",
1102 ofd_obd(ofd)->obd_name, oa->o_seq, oa->o_id);
1104 rc = ofd_seq_last_oid_write(env, ofd, oseq);
1106 /* don't reuse orphan object, return last used objid */
1110 ofd_seq_put(env, oseq);
1114 int ofd_create(const struct lu_env *env, struct obd_export *exp,
1115 struct obdo *oa, struct lov_stripe_md **ea,
1116 struct obd_trans_info *oti)
1118 struct ofd_device *ofd = ofd_exp(exp);
1119 struct ofd_thread_info *info;
1120 obd_seq seq = oa->o_seq;
1121 struct ofd_seq *oseq;
1126 info = ofd_info_init(env, exp);
1127 ofd_oti2info(info, oti);
1129 LASSERT(oa->o_seq >= FID_SEQ_OST_MDT0);
1130 LASSERT(oa->o_valid & OBD_MD_FLGROUP);
1132 CDEBUG(D_INFO, "ofd_create(oa->o_seq="LPU64",oa->o_id="LPU64")\n",
1135 oseq = ofd_seq_load(env, ofd, seq);
1137 CERROR("%s: Can't find oseq "LPX64"\n", ofd_name(ofd), seq);
1141 if ((oa->o_valid & OBD_MD_FLFLAGS) &&
1142 (oa->o_flags & OBD_FL_RECREATE_OBJS)) {
1143 if (!ofd_obd(ofd)->obd_recovering ||
1144 oa->o_id > ofd_seq_last_oid(oseq)) {
1145 CERROR("recreate objid "LPU64" > last id "LPU64"\n",
1146 oa->o_id, ofd_seq_last_oid(oseq));
1147 GOTO(out_nolock, rc = -EINVAL);
1149 /* do nothing because we create objects during first write */
1150 GOTO(out_nolock, rc = 0);
1152 /* former ofd_handle_precreate */
1153 if ((oa->o_valid & OBD_MD_FLFLAGS) &&
1154 (oa->o_flags & OBD_FL_DELORPHAN)) {
1155 /* destroy orphans */
1156 if (oti->oti_conn_cnt < exp->exp_conn_cnt) {
1157 CERROR("%s: dropping old orphan cleanup request\n",
1159 GOTO(out_nolock, rc = 0);
1161 /* This causes inflight precreates to abort and drop lock */
1162 oseq->os_destroys_in_progress = 1;
1163 mutex_lock(&oseq->os_create_lock);
1164 if (!oseq->os_destroys_in_progress) {
1165 CERROR("%s:["LPU64"] destroys_in_progress already cleared\n",
1166 exp->exp_obd->obd_name, oa->o_seq);
1169 diff = oa->o_id - ofd_seq_last_oid(oseq);
1170 CDEBUG(D_HA, "ofd_last_id() = "LPU64" -> diff = %d\n",
1171 ofd_seq_last_oid(oseq), diff);
1172 if (-diff > OST_MAX_PRECREATE) {
1173 /* FIXME: should reset precreate_next_id on MDS */
1175 } else if (diff < 0) {
1176 rc = ofd_orphans_destroy(env, exp, ofd, oa);
1177 oseq->os_destroys_in_progress = 0;
1179 /* XXX: Used by MDS for the first time! */
1180 oseq->os_destroys_in_progress = 0;
1183 mutex_lock(&oseq->os_create_lock);
1184 if (oti->oti_conn_cnt < exp->exp_conn_cnt) {
1185 CERROR("%s: dropping old precreate request\n",
1186 ofd_obd(ofd)->obd_name);
1189 /* only precreate if seq is 0, IDIF or normal and also o_id
1190 * must be specfied */
1191 if ((!fid_seq_is_mdt(oa->o_seq) &&
1192 !fid_seq_is_norm(oa->o_seq) &&
1193 !fid_seq_is_idif(oa->o_seq)) || oa->o_id == 0) {
1194 diff = 1; /* shouldn't we create this right now? */
1196 diff = oa->o_id - ofd_seq_last_oid(oseq);
1200 cfs_time_t enough_time = cfs_time_shift(DISK_TIMEOUT);
1205 if (!(oa->o_valid & OBD_MD_FLFLAGS) ||
1206 !(oa->o_flags & OBD_FL_DELORPHAN)) {
1207 /* don't enforce grant during orphan recovery */
1208 rc = ofd_grant_create(env,
1209 ofd_obd(ofd)->obd_self_export,
1212 CDEBUG(D_HA, "%s: failed to acquire grant space"
1213 "for precreate (%d)\n",
1214 ofd_name(ofd), diff);
1220 next_id = ofd_seq_last_oid(oseq) + 1;
1221 count = ofd_precreate_batch(ofd, diff);
1223 CDEBUG(D_HA, "%s: reserve %d objects in group "LPU64
1224 " at "LPU64"\n", ofd_obd(ofd)->obd_name,
1225 count, oa->o_seq, next_id);
1227 if (cfs_time_after(jiffies, enough_time)) {
1228 LCONSOLE_WARN("%s: Slow creates, %d/%d objects"
1229 " created at a rate of %d/s\n",
1230 ofd_obd(ofd)->obd_name,
1231 created, diff + created,
1232 created / DISK_TIMEOUT);
1236 rc = ofd_precreate_objects(env, ofd, next_id,
1241 } else if (rc < 0) {
1246 /* some objects got created, we can return
1247 * them, even if last creation failed */
1250 CERROR("unable to precreate: %d\n", rc);
1252 oa->o_id = ofd_seq_last_oid(oseq);
1253 oa->o_valid |= OBD_MD_FLID | OBD_MD_FLGROUP;
1255 if (!(oa->o_valid & OBD_MD_FLFLAGS) ||
1256 !(oa->o_flags & OBD_FL_DELORPHAN))
1257 ofd_grant_commit(env, ofd_obd(ofd)->obd_self_export,
1261 ofd_info2oti(info, oti);
1263 mutex_unlock(&oseq->os_create_lock);
1265 if (rc == 0 && ea != NULL) {
1266 struct lov_stripe_md *lsm = *ea;
1268 lsm->lsm_object_id = oa->o_id;
1270 ofd_seq_put(env, oseq);
1274 int ofd_getattr(const struct lu_env *env, struct obd_export *exp,
1275 struct obd_info *oinfo)
1277 struct ofd_device *ofd = ofd_exp(exp);
1278 struct ofd_thread_info *info;
1279 struct ofd_object *fo;
1285 info = ofd_info_init(env, exp);
1287 fid_ostid_unpack(&info->fti_fid, &oinfo->oi_oa->o_oi, 0);
1288 rc = ofd_auth_capa(exp, &info->fti_fid, oinfo->oi_oa->o_seq,
1289 oinfo_capa(oinfo), CAPA_OPC_META_READ);
1293 fo = ofd_object_find(env, ofd, &info->fti_fid);
1295 GOTO(out, rc = PTR_ERR(fo));
1296 LASSERT(fo != NULL);
1297 rc = ofd_attr_get(env, fo, &info->fti_attr);
1298 oinfo->oi_oa->o_valid = OBD_MD_FLID;
1300 obdo_from_la(oinfo->oi_oa, &info->fti_attr,
1301 OFD_VALID_FLAGS | LA_UID | LA_GID);
1303 /* Store object version in reply */
1304 curr_version = dt_version_get(env, ofd_object_child(fo));
1305 if ((__s64)curr_version != -EOPNOTSUPP) {
1306 oinfo->oi_oa->o_valid |= OBD_MD_FLDATAVERSION;
1307 oinfo->oi_oa->o_data_version = curr_version;
1309 ofd_object_put(env, fo);
1314 static int ofd_sync(const struct lu_env *env, struct obd_export *exp,
1315 struct obd_info *oinfo, obd_size start, obd_size end,
1316 struct ptlrpc_request_set *set)
1318 struct ofd_device *ofd = ofd_exp(exp);
1319 struct ofd_thread_info *info;
1320 struct ofd_object *fo;
1325 /* if no objid is specified, it means "sync whole filesystem" */
1326 if (oinfo->oi_oa == NULL || !(oinfo->oi_oa->o_valid & OBD_MD_FLID)) {
1327 rc = dt_sync(env, ofd->ofd_osd);
1331 info = ofd_info_init(env, exp);
1332 fid_ostid_unpack(&info->fti_fid, &oinfo->oi_oa->o_oi, 0);
1334 rc = ofd_auth_capa(exp, &info->fti_fid, oinfo->oi_oa->o_seq,
1335 oinfo_capa(oinfo), CAPA_OPC_OSS_TRUNC);
1339 fo = ofd_object_find(env, ofd, &info->fti_fid);
1341 CERROR("%s: error finding object "DFID": rc = %ld\n",
1342 exp->exp_obd->obd_name, PFID(&info->fti_fid),
1344 GOTO(out, rc = PTR_ERR(fo));
1347 if (!ofd_object_exists(fo))
1348 GOTO(put, rc = -ENOENT);
1350 if (dt_version_get(env, ofd_object_child(fo)) >
1351 ofd_obd(ofd)->obd_last_committed) {
1352 rc = dt_object_sync(env, ofd_object_child(fo));
1357 oinfo->oi_oa->o_valid = OBD_MD_FLID;
1358 rc = ofd_attr_get(env, fo, &info->fti_attr);
1359 obdo_from_la(oinfo->oi_oa, &info->fti_attr, OFD_VALID_FLAGS);
1361 ofd_counter_incr(exp, LPROC_OFD_STATS_SYNC, oinfo->oi_jobid, 1);
1364 ofd_object_put(env, fo);
1369 int ofd_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
1370 void *karg, void *uarg)
1373 struct ofd_device *ofd = ofd_exp(exp);
1374 struct obd_device *obd = ofd_obd(ofd);
1379 CDEBUG(D_IOCTL, "handling ioctl cmd %#x\n", cmd);
1380 rc = lu_env_init(&env, LCT_LOCAL);
1385 case OBD_IOC_ABORT_RECOVERY:
1386 CERROR("%s: aborting recovery\n", obd->obd_name);
1387 target_stop_recovery_thread(obd);
1390 CDEBUG(D_RPCTRACE, "syncing ost %s\n", obd->obd_name);
1391 rc = dt_sync(&env, ofd->ofd_osd);
1393 case OBD_IOC_SET_READONLY:
1394 rc = dt_sync(&env, ofd->ofd_osd);
1396 rc = dt_ro(&env, ofd->ofd_osd);
1399 CERROR("%s: not supported cmd = %d\n", obd->obd_name, cmd);
1407 static int ofd_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
1414 case OBD_CLEANUP_EARLY:
1416 case OBD_CLEANUP_EXPORTS:
1417 target_cleanup_recovery(obd);
1423 static int ofd_ping(const struct lu_env *env, struct obd_export *exp)
1425 ofd_fmd_expire(exp);
1429 static int ofd_health_check(const struct lu_env *nul, struct obd_device *obd)
1431 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
1432 struct ofd_thread_info *info;
1434 #ifdef USE_HEALTH_CHECK_WRITE
1439 /* obd_proc_read_health pass NULL env, we need real one */
1440 rc = lu_env_init(&env, LCT_DT_THREAD);
1444 info = ofd_info_init(&env, NULL);
1445 rc = dt_statfs(&env, ofd->ofd_osd, &info->fti_u.osfs);
1449 if (info->fti_u.osfs.os_state == OS_STATE_READONLY)
1450 GOTO(out, rc = -EROFS);
1452 #ifdef USE_HEALTH_CHECK_WRITE
1453 OBD_ALLOC(info->fti_buf.lb_buf, CFS_PAGE_SIZE);
1454 if (info->fti_buf.lb_buf == NULL)
1455 GOTO(out, rc = -ENOMEM);
1457 info->fti_buf.lb_len = CFS_PAGE_SIZE;
1460 th = dt_trans_create(&env, ofd->ofd_osd);
1462 GOTO(out, rc = PTR_ERR(th));
1464 rc = dt_declare_record_write(&env, ofd->ofd_health_check_file,
1465 info->fti_buf.lb_len, info->fti_off, th);
1467 th->th_sync = 1; /* sync IO is needed */
1468 rc = dt_trans_start_local(&env, ofd->ofd_osd, th);
1470 rc = dt_record_write(&env, ofd->ofd_health_check_file,
1471 &info->fti_buf, &info->fti_off,
1474 dt_trans_stop(&env, ofd->ofd_osd, th);
1476 OBD_FREE(info->fti_buf.lb_buf, CFS_PAGE_SIZE);
1478 CDEBUG(D_INFO, "write 1 page synchronously for checking io rc %d\n",rc);
1486 * Handle quota control requests to consult current usage/limit.
1488 * \param obd - is the obd device associated with the ofd
1489 * \param exp - is the client's export
1490 * \param oqctl - is the obd_quotactl request to be processed
1492 static int ofd_quotactl(struct obd_device *obd, struct obd_export *exp,
1493 struct obd_quotactl *oqctl)
1495 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
1500 /* report success for quota on/off for interoperability with current MDT
1502 if (oqctl->qc_cmd == Q_QUOTAON || oqctl->qc_cmd == Q_QUOTAOFF)
1505 rc = lu_env_init(&env, LCT_DT_THREAD);
1509 rc = lquotactl_slv(&env, ofd->ofd_osd, oqctl);
1515 struct obd_ops ofd_obd_ops = {
1516 .o_owner = THIS_MODULE,
1517 .o_connect = ofd_obd_connect,
1518 .o_reconnect = ofd_obd_reconnect,
1519 .o_disconnect = ofd_obd_disconnect,
1520 .o_set_info_async = ofd_set_info_async,
1521 .o_get_info = ofd_get_info,
1522 .o_create = ofd_create,
1523 .o_statfs = ofd_statfs,
1524 .o_setattr = ofd_setattr,
1525 .o_preprw = ofd_preprw,
1526 .o_commitrw = ofd_commitrw,
1527 .o_destroy = ofd_destroy,
1528 .o_init_export = ofd_init_export,
1529 .o_destroy_export = ofd_destroy_export,
1530 .o_postrecov = ofd_obd_postrecov,
1531 .o_punch = ofd_punch,
1532 .o_getattr = ofd_getattr,
1534 .o_iocontrol = ofd_iocontrol,
1535 .o_precleanup = ofd_precleanup,
1537 .o_health_check = ofd_health_check,
1538 .o_quotactl = ofd_quotactl,