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_ost_index;
174 if (!(lsd->lsd_feature_compat & OBD_COMPAT_OST)) {
175 /* this will only happen on the first connect */
176 lsd->lsd_ost_index = data->ocd_index;
177 lsd->lsd_feature_compat |= OBD_COMPAT_OST;
178 /* sync is not needed here as lut_client_add will
179 * set exp_need_sync flag */
180 tgt_server_data_update(env, &ofd->ofd_lut, 0);
181 } else if (index != data->ocd_index) {
182 LCONSOLE_ERROR_MSG(0x136, "Connection from %s to index"
183 " %u doesn't match actual OST index"
184 " %u in last_rcvd file, bad "
186 obd_export_nid2str(exp), index,
192 if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_SIZE)) {
193 data->ocd_brw_size = 65536;
194 } else if (data->ocd_connect_flags & OBD_CONNECT_BRW_SIZE) {
195 data->ocd_brw_size = min(data->ocd_brw_size,
196 (__u32)(PTLRPC_MAX_BRW_PAGES << CFS_PAGE_SHIFT));
197 if (data->ocd_brw_size == 0) {
198 CERROR("%s: cli %s/%p ocd_connect_flags: "LPX64
199 " ocd_version: %x ocd_grant: %d ocd_index: %u "
200 "ocd_brw_size is unexpectedly zero, "
201 "network data corruption?"
202 "Refusing connection of this client\n",
203 exp->exp_obd->obd_name,
204 exp->exp_client_uuid.uuid,
205 exp, data->ocd_connect_flags, data->ocd_version,
206 data->ocd_grant, data->ocd_index);
211 if (data->ocd_connect_flags & OBD_CONNECT_CKSUM) {
212 __u32 cksum_types = data->ocd_cksum_types;
214 /* The client set in ocd_cksum_types the checksum types it
215 * supports. We have to mask off the algorithms that we don't
217 data->ocd_cksum_types &= cksum_types_supported_server();
219 if (unlikely(data->ocd_cksum_types == 0)) {
220 CERROR("%s: Connect with checksum support but no "
221 "ocd_cksum_types is set\n",
222 exp->exp_obd->obd_name);
226 CDEBUG(D_RPCTRACE, "%s: cli %s supports cksum type %x, return "
227 "%x\n", exp->exp_obd->obd_name, obd_export_nid2str(exp),
228 cksum_types, data->ocd_cksum_types);
230 /* This client does not support OBD_CONNECT_CKSUM
231 * fall back to CRC32 */
232 CDEBUG(D_RPCTRACE, "%s: cli %s does not support "
233 "OBD_CONNECT_CKSUM, CRC32 will be used\n",
234 exp->exp_obd->obd_name, obd_export_nid2str(exp));
237 if (data->ocd_connect_flags & OBD_CONNECT_MAXBYTES)
238 data->ocd_maxbytes = ofd->ofd_dt_conf.ddp_maxbytes;
243 static int ofd_obd_reconnect(const struct lu_env *env, struct obd_export *exp,
244 struct obd_device *obd, struct obd_uuid *cluuid,
245 struct obd_connect_data *data, void *localdata)
247 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
252 if (exp == NULL || obd == NULL || cluuid == NULL)
255 rc = lu_env_refill((struct lu_env *)env);
257 CERROR("Failure to refill session: '%d'\n", rc);
261 ofd_info_init(env, exp);
262 rc = ofd_parse_connect_data(env, exp, data);
264 ofd_export_stats_init(ofd, exp, localdata);
269 static int ofd_obd_connect(const struct lu_env *env, struct obd_export **_exp,
270 struct obd_device *obd, struct obd_uuid *cluuid,
271 struct obd_connect_data *data, void *localdata)
273 struct obd_export *exp;
274 struct ofd_device *ofd;
275 struct lustre_handle conn = { 0 };
280 if (_exp == NULL || obd == NULL || cluuid == NULL)
283 ofd = ofd_dev(obd->obd_lu_dev);
285 rc = class_connect(&conn, obd, cluuid);
289 exp = class_conn2export(&conn);
290 LASSERT(exp != NULL);
292 rc = lu_env_refill((struct lu_env *)env);
294 CERROR("Failure to refill session: '%d'\n", rc);
298 ofd_info_init(env, exp);
300 rc = ofd_parse_connect_data(env, exp, data);
304 seq = data->ocd_group;
305 if (obd->obd_replayable) {
306 struct tg_export_data *ted = &exp->exp_target_data;
308 memcpy(ted->ted_lcd->lcd_uuid, cluuid,
309 sizeof(ted->ted_lcd->lcd_uuid));
310 rc = tgt_client_new(env, exp);
313 ofd_export_stats_init(ofd, exp, localdata);
319 if (seq > ofd->ofd_seq_count) {
320 struct ofd_seq *oseq;
322 ofd->ofd_seq_count = seq;
323 oseq = ofd_seq_load(env, ofd, seq);
325 CERROR("%s: load oseq "LPX64" error: rc = %ld\n",
326 ofd_name(ofd), oseq->os_seq, PTR_ERR(oseq));
327 GOTO(out, rc = PTR_ERR(oseq));
329 ofd_seq_put(env, oseq);
335 class_disconnect(exp);
343 static int ofd_obd_disconnect(struct obd_export *exp)
345 struct ofd_device *ofd = ofd_dev(exp->exp_obd->obd_lu_dev);
352 class_export_get(exp);
354 if (!(exp->exp_flags & OBD_OPT_FORCE))
355 ofd_grant_sanity_check(ofd_obd(ofd), __FUNCTION__);
357 rc = server_disconnect_export(exp);
359 ofd_grant_discard(exp);
361 rc = lu_env_init(&env, LCT_DT_THREAD);
365 /* Do not erase record for recoverable client. */
366 if (exp->exp_obd->obd_replayable &&
367 (!exp->exp_obd->obd_fail || exp->exp_failed))
368 tgt_client_del(&env, exp);
371 class_export_put(exp);
375 static int ofd_init_export(struct obd_export *exp)
379 spin_lock_init(&exp->exp_filter_data.fed_lock);
380 CFS_INIT_LIST_HEAD(&exp->exp_filter_data.fed_mod_list);
381 spin_lock(&exp->exp_lock);
382 exp->exp_connecting = 1;
383 spin_unlock(&exp->exp_lock);
385 /* self-export doesn't need client data and ldlm initialization */
386 if (unlikely(obd_uuid_equals(&exp->exp_obd->obd_uuid,
387 &exp->exp_client_uuid)))
390 rc = tgt_client_alloc(exp);
392 ldlm_init_export(exp);
394 CERROR("%s: Can't initialize export: rc %d\n",
395 exp->exp_obd->obd_name, rc);
399 static int ofd_destroy_export(struct obd_export *exp)
401 struct ofd_device *ofd = ofd_dev(exp->exp_obd->obd_lu_dev);
403 if (exp->exp_filter_data.fed_pending)
404 CERROR("%s: cli %s/%p has %lu pending on destroyed export"
405 "\n", exp->exp_obd->obd_name, exp->exp_client_uuid.uuid,
406 exp, exp->exp_filter_data.fed_pending);
408 target_destroy_export(exp);
410 if (unlikely(obd_uuid_equals(&exp->exp_obd->obd_uuid,
411 &exp->exp_client_uuid)))
414 ldlm_destroy_export(exp);
415 tgt_client_free(exp);
417 ofd_fmd_cleanup(exp);
420 * discard grants once we're sure no more
421 * interaction with the client is possible
423 ofd_grant_discard(exp);
424 ofd_fmd_cleanup(exp);
426 if (exp->exp_connect_flags & OBD_CONNECT_GRANT_SHRINK) {
427 if (ofd->ofd_tot_granted_clients > 0)
428 ofd->ofd_tot_granted_clients --;
431 if (!(exp->exp_flags & OBD_OPT_FORCE))
432 ofd_grant_sanity_check(exp->exp_obd, __FUNCTION__);
434 LASSERT(cfs_list_empty(&exp->exp_filter_data.fed_mod_list));
438 int ofd_postrecov(const struct lu_env *env, struct ofd_device *ofd)
440 struct lu_device *ldev = &ofd->ofd_dt_dev.dd_lu_dev;
442 CDEBUG(D_HA, "%s: recovery is over\n", ofd_obd(ofd)->obd_name);
443 return ldev->ld_ops->ldo_recovery_complete(env, ldev);
446 int ofd_obd_postrecov(struct obd_device *obd)
449 struct lu_device *ldev = obd->obd_lu_dev;
454 rc = lu_env_init(&env, LCT_DT_THREAD);
457 ofd_info_init(&env, obd->obd_self_export);
459 rc = ofd_postrecov(&env, ofd_dev(ldev));
465 static int ofd_adapt_sptlrpc_conf(const struct lu_env *env,
466 struct obd_device *obd, int initial)
468 struct filter_obd *fo = &obd->u.filter;
469 struct sptlrpc_rule_set tmp_rset;
472 sptlrpc_rule_set_init(&tmp_rset);
473 rc = sptlrpc_conf_target_get_rules(obd, &tmp_rset, initial);
475 CERROR("%s: failed get sptlrpc rules: rc = %d\n",
480 sptlrpc_target_update_exp_flavor(obd, &tmp_rset);
482 write_lock(&fo->fo_sptlrpc_lock);
483 sptlrpc_rule_set_free(&fo->fo_sptlrpc_rset);
484 fo->fo_sptlrpc_rset = tmp_rset;
485 write_unlock(&fo->fo_sptlrpc_lock);
490 static int ofd_set_mds_conn(struct obd_export *exp, void *val)
496 LCONSOLE_WARN("%s: received MDS connection from %s\n",
497 exp->exp_obd->obd_name, obd_export_nid2str(exp));
501 static int ofd_set_info_async(const struct lu_env *env, struct obd_export *exp,
502 __u32 keylen, void *key, __u32 vallen, void *val,
503 struct ptlrpc_request_set *set)
505 struct ofd_device *ofd = ofd_exp(exp);
510 if (exp->exp_obd == NULL) {
511 CDEBUG(D_IOCTL, "invalid export %p\n", exp);
515 if (KEY_IS(KEY_CAPA_KEY)) {
516 rc = ofd_update_capa_key(ofd, val);
518 CERROR("%s: update capability key failed: rc = %d\n",
519 exp->exp_obd->obd_name, rc);
520 } else if (KEY_IS(KEY_SPTLRPC_CONF)) {
521 ofd_adapt_sptlrpc_conf(env, exp->exp_obd, 0);
522 } else if (KEY_IS(KEY_MDS_CONN)) {
523 rc = ofd_set_mds_conn(exp, val);
524 } else if (KEY_IS(KEY_GRANT_SHRINK)) {
525 struct ost_body *body = val;
527 ofd_info_init(env, exp);
528 /** handle grant shrink, similar to a read request */
529 ofd_grant_prepare_read(env, exp, &body->oa);
531 CERROR("%s: Unsupported key %s\n",
532 exp->exp_obd->obd_name, (char*)key);
539 static int ofd_get_info(const struct lu_env *env, struct obd_export *exp,
540 __u32 keylen, void *key, __u32 *vallen, void *val,
541 struct lov_stripe_md *lsm)
543 struct ofd_device *ofd = ofd_exp(exp);
548 if (exp->exp_obd == NULL) {
549 CDEBUG(D_IOCTL, "invalid client export %p\n", exp);
553 if (KEY_IS(KEY_BLOCKSIZE)) {
554 __u32 *blocksize = val;
556 if (*vallen < sizeof(*blocksize))
558 *blocksize = 1 << ofd->ofd_dt_conf.ddp_block_shift;
560 *vallen = sizeof(*blocksize);
561 } else if (KEY_IS(KEY_BLOCKSIZE_BITS)) {
562 __u32 *blocksize_bits = val;
563 if (blocksize_bits) {
564 if (*vallen < sizeof(*blocksize_bits))
566 *blocksize_bits = ofd->ofd_dt_conf.ddp_block_shift;
568 *vallen = sizeof(*blocksize_bits);
569 } else if (KEY_IS(KEY_LAST_ID)) {
570 obd_id *last_id = val;
571 struct ofd_seq *oseq;
573 oseq = ofd_seq_get(ofd, exp->exp_filter_data.fed_group);
574 LASSERT(oseq != NULL);
576 if (*vallen < sizeof(*last_id)) {
577 ofd_seq_put(env, oseq);
580 *last_id = ofd_seq_last_oid(oseq);
582 ofd_seq_put(env, oseq);
583 *vallen = sizeof(*last_id);
584 } else if (KEY_IS(KEY_FIEMAP)) {
585 struct ofd_thread_info *info;
586 struct ofd_device *ofd = ofd_exp(exp);
587 struct ofd_object *fo;
588 struct ll_fiemap_info_key *fm_key = key;
591 *vallen = fiemap_count_to_size(
592 fm_key->fiemap.fm_extent_count);
596 info = ofd_info_init(env, exp);
598 fid_ostid_unpack(&info->fti_fid, &fm_key->oa.o_oi, 0);
600 CDEBUG(D_INODE, "get FIEMAP of object "DFID"\n",
601 PFID(&info->fti_fid));
603 fo = ofd_object_find(env, ofd, &info->fti_fid);
605 CERROR("%s: error finding object "DFID"\n",
606 exp->exp_obd->obd_name, PFID(&info->fti_fid));
609 struct ll_user_fiemap *fiemap = val;
611 ofd_read_lock(env, fo);
612 if (ofd_object_exists(fo)) {
613 *fiemap = fm_key->fiemap;
614 rc = dt_fiemap_get(env,
615 ofd_object_child(fo),
620 ofd_read_unlock(env, fo);
621 ofd_object_put(env, fo);
623 } else if (KEY_IS(KEY_SYNC_LOCK_CANCEL)) {
624 *((__u32 *) val) = ofd->ofd_sync_lock_cancel;
625 *vallen = sizeof(__u32);
627 CERROR("Not supported key %s\n", (char*)key);
634 /** helper function for statfs, also used by grant code */
635 int ofd_statfs_internal(const struct lu_env *env, struct ofd_device *ofd,
636 struct obd_statfs *osfs, __u64 max_age, int *from_cache)
640 spin_lock(&ofd->ofd_osfs_lock);
641 if (cfs_time_before_64(ofd->ofd_osfs_age, max_age) || max_age == 0) {
644 /* statfs data are too old, get up-to-date one.
645 * we must be cautious here since multiple threads might be
646 * willing to update statfs data concurrently and we must
647 * grant that cached statfs data are always consistent */
649 if (ofd->ofd_statfs_inflight == 0)
650 /* clear inflight counter if no users, although it would
651 * take a while to overflow this 64-bit counter ... */
652 ofd->ofd_osfs_inflight = 0;
653 /* notify ofd_grant_commit() that we want to track writes
654 * completed as of now */
655 ofd->ofd_statfs_inflight++;
656 /* record value of inflight counter before running statfs to
657 * compute the diff once statfs is completed */
658 unstable = ofd->ofd_osfs_inflight;
659 spin_unlock(&ofd->ofd_osfs_lock);
661 /* statfs can sleep ... hopefully not for too long since we can
662 * call it fairly often as space fills up */
663 rc = dt_statfs(env, ofd->ofd_osd, osfs);
667 spin_lock(&ofd->ofd_grant_lock);
668 spin_lock(&ofd->ofd_osfs_lock);
669 /* calculate how much space was written while we released the
671 unstable = ofd->ofd_osfs_inflight - unstable;
672 ofd->ofd_osfs_unstable = 0;
674 /* some writes completed while we were running statfs
675 * w/o the ofd_osfs_lock. Those ones got added to
676 * the cached statfs data that we are about to crunch.
677 * Take them into account in the new statfs data */
678 osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
679 unstable >> ofd->ofd_blockbits);
680 /* However, we don't really know if those writes got
681 * accounted in the statfs call, so tell
682 * ofd_grant_space_left() there is some uncertainty
683 * on the accounting of those writes.
684 * The purpose is to prevent spurious error messages in
685 * ofd_grant_space_left() since those writes might be
686 * accounted twice. */
687 ofd->ofd_osfs_unstable += unstable;
689 /* similarly, there is some uncertainty on write requests
690 * between prepare & commit */
691 ofd->ofd_osfs_unstable += ofd->ofd_tot_pending;
692 spin_unlock(&ofd->ofd_grant_lock);
694 /* finally udpate cached statfs data */
695 ofd->ofd_osfs = *osfs;
696 ofd->ofd_osfs_age = cfs_time_current_64();
698 ofd->ofd_statfs_inflight--; /* stop tracking */
699 if (ofd->ofd_statfs_inflight == 0)
700 ofd->ofd_osfs_inflight = 0;
701 spin_unlock(&ofd->ofd_osfs_lock);
706 /* use cached statfs data */
707 *osfs = ofd->ofd_osfs;
708 spin_unlock(&ofd->ofd_osfs_lock);
715 static int ofd_statfs(const struct lu_env *env, struct obd_export *exp,
716 struct obd_statfs *osfs, __u64 max_age, __u32 flags)
718 struct obd_device *obd = class_exp2obd(exp);
719 struct ofd_device *ofd = ofd_dev(exp->exp_obd->obd_lu_dev);
724 rc = ofd_statfs_internal(env, ofd, osfs, max_age, NULL);
728 /* at least try to account for cached pages. its still racy and
729 * might be under-reporting if clients haven't announced their
730 * caches with brw recently */
732 CDEBUG(D_SUPER | D_CACHE, "blocks cached "LPU64" granted "LPU64
733 " pending "LPU64" free "LPU64" avail "LPU64"\n",
734 ofd->ofd_tot_dirty, ofd->ofd_tot_granted, ofd->ofd_tot_pending,
735 osfs->os_bfree << ofd->ofd_blockbits,
736 osfs->os_bavail << ofd->ofd_blockbits);
738 osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
739 ((ofd->ofd_tot_dirty + ofd->ofd_tot_pending +
740 osfs->os_bsize - 1) >> ofd->ofd_blockbits));
742 /* The QoS code on the MDS does not care about space reserved for
743 * precreate, so take it out. */
744 if (exp->exp_connect_flags & OBD_CONNECT_MDS) {
745 struct filter_export_data *fed;
747 fed = &obd->obd_self_export->exp_filter_data;
748 osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
749 fed->fed_grant >> ofd->ofd_blockbits);
752 ofd_grant_sanity_check(obd, __FUNCTION__);
753 CDEBUG(D_CACHE, LPU64" blocks: "LPU64" free, "LPU64" avail; "
754 LPU64" objects: "LPU64" free; state %x\n",
755 osfs->os_blocks, osfs->os_bfree, osfs->os_bavail,
756 osfs->os_files, osfs->os_ffree, osfs->os_state);
758 if (OBD_FAIL_CHECK_VALUE(OBD_FAIL_OST_ENOINO,
759 ofd->ofd_lut.lut_lsd.lsd_ost_index))
762 /* OS_STATE_READONLY can be set by OSD already */
763 if (ofd->ofd_raid_degraded)
764 osfs->os_state |= OS_STATE_DEGRADED;
766 if (obd->obd_self_export != exp && ofd_grant_compat(exp, ofd)) {
767 /* clients which don't support OBD_CONNECT_GRANT_PARAM
768 * should not see a block size > page size, otherwise
769 * cl_lost_grant goes mad. Therefore, we emulate a 4KB (=2^12)
770 * block size which is the biggest block size known to work
771 * with all client's page size. */
772 osfs->os_blocks <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
773 osfs->os_bfree <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
774 osfs->os_bavail <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
775 osfs->os_bsize = 1 << COMPAT_BSIZE_SHIFT;
778 if (OBD_FAIL_CHECK_VALUE(OBD_FAIL_OST_ENOSPC,
779 ofd->ofd_lut.lut_lsd.lsd_ost_index))
780 osfs->os_bfree = osfs->os_bavail = 2;
787 int ofd_setattr(const struct lu_env *env, struct obd_export *exp,
788 struct obd_info *oinfo, struct obd_trans_info *oti)
790 struct ofd_thread_info *info;
791 struct ofd_device *ofd = ofd_exp(exp);
792 struct ldlm_namespace *ns = ofd->ofd_namespace;
793 struct ldlm_resource *res;
794 struct ofd_object *fo;
795 struct obdo *oa = oinfo->oi_oa;
796 struct filter_fid *ff = NULL;
801 info = ofd_info_init(env, exp);
802 ofd_oti2info(info, oti);
804 fid_ostid_unpack(&info->fti_fid, &oinfo->oi_oa->o_oi, 0);
805 ofd_build_resid(&info->fti_fid, &info->fti_resid);
807 rc = ofd_auth_capa(exp, &info->fti_fid, oa->o_seq,
808 oinfo_capa(oinfo), CAPA_OPC_META_WRITE);
812 /* This would be very bad - accidentally truncating a file when
813 * changing the time or similar - bug 12203. */
814 if (oinfo->oi_oa->o_valid & OBD_MD_FLSIZE &&
815 oinfo->oi_policy.l_extent.end != OBD_OBJECT_EOF) {
816 static char mdsinum[48];
818 if (oinfo->oi_oa->o_valid & OBD_MD_FLFID)
819 snprintf(mdsinum, sizeof(mdsinum) - 1,
820 "of parent "DFID, oinfo->oi_oa->o_parent_seq,
821 oinfo->oi_oa->o_parent_oid, 0);
825 CERROR("%s: setattr from %s trying to truncate object "DFID
826 " %s\n", exp->exp_obd->obd_name,
827 obd_export_nid2str(exp), PFID(&info->fti_fid), mdsinum);
828 GOTO(out, rc = -EPERM);
831 fo = ofd_object_find(env, ofd, &info->fti_fid);
833 CERROR("%s: can't find object "DFID"\n",
834 exp->exp_obd->obd_name, PFID(&info->fti_fid));
835 GOTO(out, rc = PTR_ERR(fo));
838 la_from_obdo(&info->fti_attr, oinfo->oi_oa, oinfo->oi_oa->o_valid);
839 info->fti_attr.la_valid &= ~LA_TYPE;
841 if (oa->o_valid & OBD_MD_FLFID) {
842 ff = &info->fti_mds_fid;
843 ofd_prepare_fidea(ff, oa);
846 /* setting objects attributes (including owner/group) */
847 rc = ofd_attr_set(env, fo, &info->fti_attr, ff);
849 GOTO(out_unlock, rc);
851 res = ldlm_resource_get(ns, NULL, &info->fti_resid, LDLM_EXTENT, 0);
853 ldlm_res_lvbo_update(res, NULL, 0);
854 ldlm_resource_putref(res);
857 oinfo->oi_oa->o_valid = OBD_MD_FLID;
859 /* Quota release needs uid/gid info */
860 rc = ofd_attr_get(env, fo, &info->fti_attr);
861 obdo_from_la(oinfo->oi_oa, &info->fti_attr,
862 OFD_VALID_FLAGS | LA_UID | LA_GID);
863 ofd_info2oti(info, oti);
865 ofd_counter_incr(exp, LPROC_OFD_STATS_SETATTR, oti->oti_jobid, 1);
868 ofd_object_put(env, fo);
873 static int ofd_punch(const struct lu_env *env, struct obd_export *exp,
874 struct obd_info *oinfo, struct obd_trans_info *oti,
875 struct ptlrpc_request_set *rqset)
877 struct ofd_thread_info *info;
878 struct ofd_device *ofd = ofd_exp(exp);
879 struct ldlm_namespace *ns = ofd->ofd_namespace;
880 struct ldlm_resource *res;
881 struct ofd_object *fo;
882 struct filter_fid *ff = NULL;
887 info = ofd_info_init(env, exp);
888 ofd_oti2info(info, oti);
890 fid_ostid_unpack(&info->fti_fid, &oinfo->oi_oa->o_oi, 0);
891 ofd_build_resid(&info->fti_fid, &info->fti_resid);
893 CDEBUG(D_INODE, "calling punch for object "DFID", valid = "LPX64
894 ", start = "LPD64", end = "LPD64"\n", PFID(&info->fti_fid),
895 oinfo->oi_oa->o_valid, oinfo->oi_policy.l_extent.start,
896 oinfo->oi_policy.l_extent.end);
898 rc = ofd_auth_capa(exp, &info->fti_fid, oinfo->oi_oa->o_seq,
899 oinfo_capa(oinfo), CAPA_OPC_OSS_TRUNC);
903 fo = ofd_object_find(env, ofd, &info->fti_fid);
905 CERROR("%s: error finding object "DFID": rc = %ld\n",
906 exp->exp_obd->obd_name, PFID(&info->fti_fid),
908 GOTO(out_env, rc = PTR_ERR(fo));
911 LASSERT(oinfo->oi_policy.l_extent.end == OBD_OBJECT_EOF);
912 if (oinfo->oi_policy.l_extent.end == OBD_OBJECT_EOF) {
914 oinfo->oi_oa->o_size = oinfo->oi_policy.l_extent.start;
915 } else if (oinfo->oi_policy.l_extent.end >= oinfo->oi_oa->o_size) {
916 oinfo->oi_oa->o_size = oinfo->oi_policy.l_extent.end;
919 la_from_obdo(&info->fti_attr, oinfo->oi_oa,
920 OBD_MD_FLMTIME | OBD_MD_FLATIME | OBD_MD_FLCTIME);
921 info->fti_attr.la_valid &= ~LA_TYPE;
922 info->fti_attr.la_size = oinfo->oi_policy.l_extent.start;
923 info->fti_attr.la_valid |= LA_SIZE;
925 if (oinfo->oi_oa->o_valid & OBD_MD_FLFID) {
926 ff = &info->fti_mds_fid;
927 ofd_prepare_fidea(ff, oinfo->oi_oa);
930 rc = ofd_object_punch(env, fo, oinfo->oi_policy.l_extent.start,
931 oinfo->oi_policy.l_extent.end, &info->fti_attr,
936 res = ldlm_resource_get(ns, NULL, &info->fti_resid, LDLM_EXTENT, 0);
938 ldlm_res_lvbo_update(res, NULL, 0);
939 ldlm_resource_putref(res);
942 oinfo->oi_oa->o_valid = OBD_MD_FLID;
943 /* Quota release needs uid/gid info */
944 rc = ofd_attr_get(env, fo, &info->fti_attr);
945 obdo_from_la(oinfo->oi_oa, &info->fti_attr,
946 OFD_VALID_FLAGS | LA_UID | LA_GID);
947 ofd_info2oti(info, oti);
949 ofd_counter_incr(exp, LPROC_OFD_STATS_PUNCH, oti->oti_jobid, 1);
952 ofd_object_put(env, fo);
957 static int ofd_destroy_by_fid(const struct lu_env *env,
958 struct ofd_device *ofd,
959 const struct lu_fid *fid, int orphan)
961 struct ofd_thread_info *info = ofd_info(env);
962 struct lustre_handle lockh;
963 __u64 flags = LDLM_AST_DISCARD_DATA, rc = 0;
964 ldlm_policy_data_t policy = {
965 .l_extent = { 0, OBD_OBJECT_EOF }
967 struct ofd_object *fo;
971 fo = ofd_object_find(env, ofd, fid);
975 /* Tell the clients that the object is gone now and that they should
976 * throw away any cached pages. */
977 ofd_build_resid(fid, &info->fti_resid);
978 rc = ldlm_cli_enqueue_local(ofd->ofd_namespace, &info->fti_resid,
979 LDLM_EXTENT, &policy, LCK_PW, &flags,
980 ldlm_blocking_ast, ldlm_completion_ast,
981 NULL, NULL, 0, LVB_T_NONE, NULL, &lockh);
983 /* We only care about the side-effects, just drop the lock. */
985 ldlm_lock_decref(&lockh, LCK_PW);
989 rc = ofd_object_destroy(env, fo, orphan);
991 ofd_object_put(env, fo);
995 int ofd_destroy(const struct lu_env *env, struct obd_export *exp,
996 struct obdo *oa, struct lov_stripe_md *md,
997 struct obd_trans_info *oti, struct obd_export *md_exp,
1000 struct ofd_device *ofd = ofd_exp(exp);
1001 struct ofd_thread_info *info;
1007 info = ofd_info_init(env, exp);
1008 ofd_oti2info(info, oti);
1010 if (!(oa->o_valid & OBD_MD_FLGROUP))
1013 /* check that o_misc makes sense */
1014 if (oa->o_valid & OBD_MD_FLOBJCOUNT)
1017 count = 1; /* default case - single destroy */
1020 * There can be sequence of objects to destroy. Therefore this request
1021 * may have multiple transaction involved in. It is OK, we need only
1022 * the highest used transno to be reported back in reply but not for
1023 * replays, they must report their transno
1025 if (info->fti_transno == 0) /* not replay */
1026 info->fti_mult_trans = 1;
1030 fid_ostid_unpack(&info->fti_fid, &oa->o_oi, 0);
1031 lrc = ofd_destroy_by_fid(env, ofd, &info->fti_fid, 0);
1032 if (lrc == -ENOENT) {
1034 "%s: destroying non-existent object "DFID"\n",
1035 ofd_obd(ofd)->obd_name, PFID(&info->fti_fid));
1036 /* rewrite rc with -ENOENT only if it is 0 */
1039 } else if (lrc != 0) {
1040 CERROR("%s: error destroying object "DFID": %d\n",
1041 ofd_obd(ofd)->obd_name, PFID(&info->fti_fid),
1049 /* if we have transaction then there were some deletions, we don't
1050 * need to return ENOENT in that case because it will not wait
1051 * for commit of these deletions. The ENOENT must be returned only
1052 * if there were no transations.
1054 if (rc == -ENOENT) {
1055 if (info->fti_transno != 0)
1057 } else if (rc != 0) {
1059 * If we have at least one transaction then llog record
1060 * on server will be removed upon commit, so for rc != 0
1061 * we return no transno and llog record will be reprocessed.
1063 info->fti_transno = 0;
1065 ofd_info2oti(info, oti);
1069 static int ofd_orphans_destroy(const struct lu_env *env,
1070 struct obd_export *exp, struct ofd_device *ofd,
1073 struct ofd_thread_info *info = ofd_info(env);
1077 struct ost_id oi = oa->o_oi;
1078 struct ofd_seq *oseq;
1082 oseq = ofd_seq_get(ofd, oa->o_seq);
1084 CERROR("%s: Can not find seq for "LPU64":"LPU64"\n",
1085 ofd_name(ofd), oa->o_seq, oa->o_id);
1089 LASSERT(exp != NULL);
1090 skip_orphan = !!(exp->exp_connect_flags & OBD_CONNECT_SKIP_ORPHAN);
1092 last = ofd_seq_last_oid(oseq);
1093 LCONSOLE_INFO("%s: deleting orphan objects from "LPX64":"LPU64
1094 " to "LPU64"\n", ofd_name(ofd), oa->o_seq,
1095 oa->o_id + 1, last);
1097 for (oi.oi_id = last; oi.oi_id > oa->o_id; oi.oi_id--) {
1098 fid_ostid_unpack(&info->fti_fid, &oi, 0);
1099 rc = ofd_destroy_by_fid(env, ofd, &info->fti_fid, 1);
1100 if (rc && rc != -ENOENT) /* this is pretty fatal... */
1101 CEMERG("error destroying precreated id "LPU64": %d\n",
1104 ofd_seq_last_oid_set(oseq, oi.oi_id - 1);
1105 /* update last_id on disk periodically so that if we
1106 * restart * we don't need to re-scan all of the just
1107 * deleted objects. */
1108 if ((oi.oi_id & 511) == 0)
1109 ofd_seq_last_oid_write(env, ofd, oseq);
1112 CDEBUG(D_HA, "%s: after destroy: set last_objids["LPU64"] = "LPU64"\n",
1113 ofd_obd(ofd)->obd_name, oa->o_seq, oa->o_id);
1115 rc = ofd_seq_last_oid_write(env, ofd, oseq);
1117 /* don't reuse orphan object, return last used objid */
1121 ofd_seq_put(env, oseq);
1125 int ofd_create(const struct lu_env *env, struct obd_export *exp,
1126 struct obdo *oa, struct lov_stripe_md **ea,
1127 struct obd_trans_info *oti)
1129 struct ofd_device *ofd = ofd_exp(exp);
1130 struct ofd_thread_info *info;
1131 obd_seq seq = oa->o_seq;
1132 struct ofd_seq *oseq;
1137 info = ofd_info_init(env, exp);
1138 ofd_oti2info(info, oti);
1140 LASSERT(oa->o_seq >= FID_SEQ_OST_MDT0);
1141 LASSERT(oa->o_valid & OBD_MD_FLGROUP);
1143 CDEBUG(D_INFO, "ofd_create(oa->o_seq="LPU64",oa->o_id="LPU64")\n",
1146 oseq = ofd_seq_get(ofd, seq);
1148 CERROR("%s: Can't find oseq "LPX64"\n", ofd_name(ofd), seq);
1152 if ((oa->o_valid & OBD_MD_FLFLAGS) &&
1153 (oa->o_flags & OBD_FL_RECREATE_OBJS)) {
1154 if (!ofd_obd(ofd)->obd_recovering ||
1155 oa->o_id > ofd_seq_last_oid(oseq)) {
1156 CERROR("recreate objid "LPU64" > last id "LPU64"\n",
1157 oa->o_id, ofd_seq_last_oid(oseq));
1158 GOTO(out_nolock, rc = -EINVAL);
1160 /* do nothing because we create objects during first write */
1161 GOTO(out_nolock, rc = 0);
1163 /* former ofd_handle_precreate */
1164 if ((oa->o_valid & OBD_MD_FLFLAGS) &&
1165 (oa->o_flags & OBD_FL_DELORPHAN)) {
1166 /* destroy orphans */
1167 if (oti->oti_conn_cnt < exp->exp_conn_cnt) {
1168 CERROR("%s: dropping old orphan cleanup request\n",
1170 GOTO(out_nolock, rc = 0);
1172 /* This causes inflight precreates to abort and drop lock */
1173 oseq->os_destroys_in_progress = 1;
1174 mutex_lock(&oseq->os_create_lock);
1175 if (!oseq->os_destroys_in_progress) {
1176 CERROR("%s:["LPU64"] destroys_in_progress already cleared\n",
1177 exp->exp_obd->obd_name, oa->o_seq);
1180 diff = oa->o_id - ofd_seq_last_oid(oseq);
1181 CDEBUG(D_HA, "ofd_last_id() = "LPU64" -> diff = %d\n",
1182 ofd_seq_last_oid(oseq), diff);
1183 if (-diff > OST_MAX_PRECREATE) {
1184 /* FIXME: should reset precreate_next_id on MDS */
1186 } else if (diff < 0) {
1187 rc = ofd_orphans_destroy(env, exp, ofd, oa);
1188 oseq->os_destroys_in_progress = 0;
1190 /* XXX: Used by MDS for the first time! */
1191 oseq->os_destroys_in_progress = 0;
1194 mutex_lock(&oseq->os_create_lock);
1195 if (oti->oti_conn_cnt < exp->exp_conn_cnt) {
1196 CERROR("%s: dropping old precreate request\n",
1197 ofd_obd(ofd)->obd_name);
1200 /* only precreate if seq == 0 and o_id is specfied */
1201 if (!fid_seq_is_mdt(oa->o_seq) || oa->o_id == 0) {
1202 diff = 1; /* shouldn't we create this right now? */
1204 diff = oa->o_id - ofd_seq_last_oid(oseq);
1208 cfs_time_t enough_time = cfs_time_shift(DISK_TIMEOUT);
1213 if (!(oa->o_valid & OBD_MD_FLFLAGS) ||
1214 !(oa->o_flags & OBD_FL_DELORPHAN)) {
1215 /* don't enforce grant during orphan recovery */
1216 rc = ofd_grant_create(env,
1217 ofd_obd(ofd)->obd_self_export,
1220 CDEBUG(D_HA, "%s: failed to acquire grant space"
1221 "for precreate (%d)\n",
1222 ofd_name(ofd), diff);
1228 next_id = ofd_seq_last_oid(oseq) + 1;
1229 count = ofd_precreate_batch(ofd, diff);
1231 CDEBUG(D_HA, "%s: reserve %d objects in group "LPU64
1232 " at "LPU64"\n", ofd_obd(ofd)->obd_name,
1233 count, oa->o_seq, next_id);
1235 if (cfs_time_after(jiffies, enough_time)) {
1236 LCONSOLE_WARN("%s: Slow creates, %d/%d objects"
1237 " created at a rate of %d/s\n",
1238 ofd_obd(ofd)->obd_name,
1239 created, diff + created,
1240 created / DISK_TIMEOUT);
1244 rc = ofd_precreate_objects(env, ofd, next_id,
1249 } else if (rc < 0) {
1254 /* some objects got created, we can return
1255 * them, even if last creation failed */
1258 CERROR("unable to precreate: %d\n", rc);
1260 oa->o_id = ofd_seq_last_oid(oseq);
1261 oa->o_valid |= OBD_MD_FLID | OBD_MD_FLGROUP;
1263 if (!(oa->o_valid & OBD_MD_FLFLAGS) ||
1264 !(oa->o_flags & OBD_FL_DELORPHAN))
1265 ofd_grant_commit(env, ofd_obd(ofd)->obd_self_export,
1269 ofd_info2oti(info, oti);
1271 mutex_unlock(&oseq->os_create_lock);
1273 if (rc == 0 && ea != NULL) {
1274 struct lov_stripe_md *lsm = *ea;
1276 lsm->lsm_object_id = oa->o_id;
1278 ofd_seq_put(env, oseq);
1282 int ofd_getattr(const struct lu_env *env, struct obd_export *exp,
1283 struct obd_info *oinfo)
1285 struct ofd_device *ofd = ofd_exp(exp);
1286 struct ofd_thread_info *info;
1287 struct ofd_object *fo;
1293 info = ofd_info_init(env, exp);
1295 fid_ostid_unpack(&info->fti_fid, &oinfo->oi_oa->o_oi, 0);
1296 rc = ofd_auth_capa(exp, &info->fti_fid, oinfo->oi_oa->o_seq,
1297 oinfo_capa(oinfo), CAPA_OPC_META_READ);
1301 fo = ofd_object_find(env, ofd, &info->fti_fid);
1303 GOTO(out, rc = PTR_ERR(fo));
1304 LASSERT(fo != NULL);
1305 rc = ofd_attr_get(env, fo, &info->fti_attr);
1306 oinfo->oi_oa->o_valid = OBD_MD_FLID;
1308 obdo_from_la(oinfo->oi_oa, &info->fti_attr,
1309 OFD_VALID_FLAGS | LA_UID | LA_GID);
1311 /* Store object version in reply */
1312 curr_version = dt_version_get(env, ofd_object_child(fo));
1313 if ((__s64)curr_version != -EOPNOTSUPP) {
1314 oinfo->oi_oa->o_valid |= OBD_MD_FLDATAVERSION;
1315 oinfo->oi_oa->o_data_version = curr_version;
1317 ofd_object_put(env, fo);
1322 static int ofd_sync(const struct lu_env *env, struct obd_export *exp,
1323 struct obd_info *oinfo, obd_size start, obd_size end,
1324 struct ptlrpc_request_set *set)
1326 struct ofd_device *ofd = ofd_exp(exp);
1327 struct ofd_thread_info *info;
1328 struct ofd_object *fo;
1333 /* if no objid is specified, it means "sync whole filesystem" */
1334 if (oinfo->oi_oa == NULL || !(oinfo->oi_oa->o_valid & OBD_MD_FLID)) {
1335 rc = dt_sync(env, ofd->ofd_osd);
1339 info = ofd_info_init(env, exp);
1340 fid_ostid_unpack(&info->fti_fid, &oinfo->oi_oa->o_oi, 0);
1342 rc = ofd_auth_capa(exp, &info->fti_fid, oinfo->oi_oa->o_seq,
1343 oinfo_capa(oinfo), CAPA_OPC_OSS_TRUNC);
1347 fo = ofd_object_find(env, ofd, &info->fti_fid);
1349 CERROR("%s: error finding object "DFID": rc = %ld\n",
1350 exp->exp_obd->obd_name, PFID(&info->fti_fid),
1352 GOTO(out, rc = PTR_ERR(fo));
1355 if (!ofd_object_exists(fo))
1356 GOTO(put, rc = -ENOENT);
1358 if (dt_version_get(env, ofd_object_child(fo)) >
1359 ofd_obd(ofd)->obd_last_committed) {
1360 rc = dt_object_sync(env, ofd_object_child(fo));
1365 oinfo->oi_oa->o_valid = OBD_MD_FLID;
1366 rc = ofd_attr_get(env, fo, &info->fti_attr);
1367 obdo_from_la(oinfo->oi_oa, &info->fti_attr, OFD_VALID_FLAGS);
1369 ofd_counter_incr(exp, LPROC_OFD_STATS_SYNC, oinfo->oi_jobid, 1);
1372 ofd_object_put(env, fo);
1377 int ofd_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
1378 void *karg, void *uarg)
1381 struct ofd_device *ofd = ofd_exp(exp);
1382 struct obd_device *obd = ofd_obd(ofd);
1387 CDEBUG(D_IOCTL, "handling ioctl cmd %#x\n", cmd);
1388 rc = lu_env_init(&env, LCT_LOCAL);
1393 case OBD_IOC_ABORT_RECOVERY:
1394 CERROR("%s: aborting recovery\n", obd->obd_name);
1395 target_stop_recovery_thread(obd);
1398 CDEBUG(D_RPCTRACE, "syncing ost %s\n", obd->obd_name);
1399 rc = dt_sync(&env, ofd->ofd_osd);
1401 case OBD_IOC_SET_READONLY:
1402 rc = dt_sync(&env, ofd->ofd_osd);
1404 rc = dt_ro(&env, ofd->ofd_osd);
1407 CERROR("%s: not supported cmd = %d\n", obd->obd_name, cmd);
1415 static int ofd_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
1422 case OBD_CLEANUP_EARLY:
1424 case OBD_CLEANUP_EXPORTS:
1425 target_cleanup_recovery(obd);
1431 static int ofd_ping(const struct lu_env *env, struct obd_export *exp)
1433 ofd_fmd_expire(exp);
1437 static int ofd_health_check(const struct lu_env *nul, struct obd_device *obd)
1439 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
1440 struct ofd_thread_info *info;
1442 #ifdef USE_HEALTH_CHECK_WRITE
1447 /* obd_proc_read_health pass NULL env, we need real one */
1448 rc = lu_env_init(&env, LCT_DT_THREAD);
1452 info = ofd_info_init(&env, NULL);
1453 rc = dt_statfs(&env, ofd->ofd_osd, &info->fti_u.osfs);
1457 if (info->fti_u.osfs.os_state == OS_STATE_READONLY)
1458 GOTO(out, rc = -EROFS);
1460 #ifdef USE_HEALTH_CHECK_WRITE
1461 OBD_ALLOC(info->fti_buf.lb_buf, CFS_PAGE_SIZE);
1462 if (info->fti_buf.lb_buf == NULL)
1463 GOTO(out, rc = -ENOMEM);
1465 info->fti_buf.lb_len = CFS_PAGE_SIZE;
1468 th = dt_trans_create(&env, ofd->ofd_osd);
1470 GOTO(out, rc = PTR_ERR(th));
1472 rc = dt_declare_record_write(&env, ofd->ofd_health_check_file,
1473 info->fti_buf.lb_len, info->fti_off, th);
1475 th->th_sync = 1; /* sync IO is needed */
1476 rc = dt_trans_start_local(&env, ofd->ofd_osd, th);
1478 rc = dt_record_write(&env, ofd->ofd_health_check_file,
1479 &info->fti_buf, &info->fti_off,
1482 dt_trans_stop(&env, ofd->ofd_osd, th);
1484 OBD_FREE(info->fti_buf.lb_buf, CFS_PAGE_SIZE);
1486 CDEBUG(D_INFO, "write 1 page synchronously for checking io rc %d\n",rc);
1494 * Handle quota control requests to consult current usage/limit.
1496 * \param obd - is the obd device associated with the ofd
1497 * \param exp - is the client's export
1498 * \param oqctl - is the obd_quotactl request to be processed
1500 static int ofd_quotactl(struct obd_device *obd, struct obd_export *exp,
1501 struct obd_quotactl *oqctl)
1503 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
1508 /* report success for quota on/off for interoperability with current MDT
1510 if (oqctl->qc_cmd == Q_QUOTAON || oqctl->qc_cmd == Q_QUOTAOFF)
1513 rc = lu_env_init(&env, LCT_DT_THREAD);
1517 rc = lquotactl_slv(&env, ofd->ofd_osd, oqctl);
1523 struct obd_ops ofd_obd_ops = {
1524 .o_owner = THIS_MODULE,
1525 .o_connect = ofd_obd_connect,
1526 .o_reconnect = ofd_obd_reconnect,
1527 .o_disconnect = ofd_obd_disconnect,
1528 .o_set_info_async = ofd_set_info_async,
1529 .o_get_info = ofd_get_info,
1530 .o_create = ofd_create,
1531 .o_statfs = ofd_statfs,
1532 .o_setattr = ofd_setattr,
1533 .o_preprw = ofd_preprw,
1534 .o_commitrw = ofd_commitrw,
1535 .o_destroy = ofd_destroy,
1536 .o_init_export = ofd_init_export,
1537 .o_destroy_export = ofd_destroy_export,
1538 .o_postrecov = ofd_obd_postrecov,
1539 .o_punch = ofd_punch,
1540 .o_getattr = ofd_getattr,
1542 .o_iocontrol = ofd_iocontrol,
1543 .o_precleanup = ofd_precleanup,
1545 .o_health_check = ofd_health_check,
1546 .o_quotactl = ofd_quotactl,