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) 2011, 2012, Whamcloud, Inc.
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 cfs_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 group = 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 (group > ofd->ofd_max_group) {
320 ofd->ofd_max_group = group;
321 rc = ofd_group_load(env, ofd, group);
325 class_disconnect(exp);
333 static int ofd_obd_disconnect(struct obd_export *exp)
335 struct ofd_device *ofd = ofd_dev(exp->exp_obd->obd_lu_dev);
342 class_export_get(exp);
344 if (!(exp->exp_flags & OBD_OPT_FORCE))
345 ofd_grant_sanity_check(ofd_obd(ofd), __FUNCTION__);
347 rc = server_disconnect_export(exp);
349 ofd_grant_discard(exp);
351 rc = lu_env_init(&env, LCT_DT_THREAD);
355 /* Do not erase record for recoverable client. */
356 if (exp->exp_obd->obd_replayable &&
357 (!exp->exp_obd->obd_fail || exp->exp_failed))
358 tgt_client_del(&env, exp);
361 class_export_put(exp);
365 static int ofd_init_export(struct obd_export *exp)
369 cfs_spin_lock_init(&exp->exp_filter_data.fed_lock);
370 CFS_INIT_LIST_HEAD(&exp->exp_filter_data.fed_mod_list);
371 cfs_spin_lock(&exp->exp_lock);
372 exp->exp_connecting = 1;
373 cfs_spin_unlock(&exp->exp_lock);
375 /* self-export doesn't need client data and ldlm initialization */
376 if (unlikely(obd_uuid_equals(&exp->exp_obd->obd_uuid,
377 &exp->exp_client_uuid)))
380 rc = tgt_client_alloc(exp);
382 ldlm_init_export(exp);
384 CERROR("%s: Can't initialize export: rc %d\n",
385 exp->exp_obd->obd_name, rc);
389 static int ofd_destroy_export(struct obd_export *exp)
391 struct ofd_device *ofd = ofd_dev(exp->exp_obd->obd_lu_dev);
393 if (exp->exp_filter_data.fed_pending)
394 CERROR("%s: cli %s/%p has %lu pending on destroyed export"
395 "\n", exp->exp_obd->obd_name, exp->exp_client_uuid.uuid,
396 exp, exp->exp_filter_data.fed_pending);
398 target_destroy_export(exp);
400 if (unlikely(obd_uuid_equals(&exp->exp_obd->obd_uuid,
401 &exp->exp_client_uuid)))
404 ldlm_destroy_export(exp);
405 tgt_client_free(exp);
407 ofd_fmd_cleanup(exp);
410 * discard grants once we're sure no more
411 * interaction with the client is possible
413 ofd_grant_discard(exp);
414 ofd_fmd_cleanup(exp);
416 if (exp->exp_connect_flags & OBD_CONNECT_GRANT_SHRINK) {
417 if (ofd->ofd_tot_granted_clients > 0)
418 ofd->ofd_tot_granted_clients --;
421 if (!(exp->exp_flags & OBD_OPT_FORCE))
422 ofd_grant_sanity_check(exp->exp_obd, __FUNCTION__);
424 LASSERT(cfs_list_empty(&exp->exp_filter_data.fed_mod_list));
428 int ofd_postrecov(const struct lu_env *env, struct ofd_device *ofd)
430 struct lu_device *ldev = &ofd->ofd_dt_dev.dd_lu_dev;
432 CDEBUG(D_HA, "%s: recovery is over\n", ofd_obd(ofd)->obd_name);
433 return ldev->ld_ops->ldo_recovery_complete(env, ldev);
436 int ofd_obd_postrecov(struct obd_device *obd)
439 struct lu_device *ldev = obd->obd_lu_dev;
444 rc = lu_env_init(&env, LCT_DT_THREAD);
447 ofd_info_init(&env, obd->obd_self_export);
449 rc = ofd_postrecov(&env, ofd_dev(ldev));
455 static int ofd_adapt_sptlrpc_conf(const struct lu_env *env,
456 struct obd_device *obd, int initial)
458 struct filter_obd *fo = &obd->u.filter;
459 struct sptlrpc_rule_set tmp_rset;
462 sptlrpc_rule_set_init(&tmp_rset);
463 rc = sptlrpc_conf_target_get_rules(obd, &tmp_rset, initial);
465 CERROR("%s: failed get sptlrpc rules: rc = %d\n",
470 sptlrpc_target_update_exp_flavor(obd, &tmp_rset);
472 cfs_write_lock(&fo->fo_sptlrpc_lock);
473 sptlrpc_rule_set_free(&fo->fo_sptlrpc_rset);
474 fo->fo_sptlrpc_rset = tmp_rset;
475 cfs_write_unlock(&fo->fo_sptlrpc_lock);
480 static int ofd_set_mds_conn(struct obd_export *exp, void *val)
486 LCONSOLE_WARN("%s: received MDS connection from %s\n",
487 exp->exp_obd->obd_name, obd_export_nid2str(exp));
491 static int ofd_set_info_async(const struct lu_env *env, struct obd_export *exp,
492 __u32 keylen, void *key, __u32 vallen, void *val,
493 struct ptlrpc_request_set *set)
495 struct ofd_device *ofd = ofd_exp(exp);
500 if (exp->exp_obd == NULL) {
501 CDEBUG(D_IOCTL, "invalid export %p\n", exp);
505 if (KEY_IS(KEY_CAPA_KEY)) {
506 rc = ofd_update_capa_key(ofd, val);
508 CERROR("%s: update capability key failed: rc = %d\n",
509 exp->exp_obd->obd_name, rc);
510 } else if (KEY_IS(KEY_SPTLRPC_CONF)) {
511 ofd_adapt_sptlrpc_conf(env, exp->exp_obd, 0);
512 } else if (KEY_IS(KEY_MDS_CONN)) {
513 rc = ofd_set_mds_conn(exp, val);
514 } else if (KEY_IS(KEY_GRANT_SHRINK)) {
515 struct ost_body *body = val;
517 /** handle grant shrink, similar to a read request */
518 ofd_grant_prepare_read(env, exp, &body->oa);
520 CERROR("%s: Unsupported key %s\n",
521 exp->exp_obd->obd_name, (char*)key);
528 static int ofd_get_info(const struct lu_env *env, struct obd_export *exp,
529 __u32 keylen, void *key, __u32 *vallen, void *val,
530 struct lov_stripe_md *lsm)
532 struct ofd_device *ofd = ofd_exp(exp);
537 if (exp->exp_obd == NULL) {
538 CDEBUG(D_IOCTL, "invalid client export %p\n", exp);
542 if (KEY_IS(KEY_BLOCKSIZE)) {
543 __u32 *blocksize = val;
545 if (*vallen < sizeof(*blocksize))
547 *blocksize = 1 << ofd->ofd_dt_conf.ddp_block_shift;
549 *vallen = sizeof(*blocksize);
550 } else if (KEY_IS(KEY_BLOCKSIZE_BITS)) {
551 __u32 *blocksize_bits = val;
552 if (blocksize_bits) {
553 if (*vallen < sizeof(*blocksize_bits))
555 *blocksize_bits = ofd->ofd_dt_conf.ddp_block_shift;
557 *vallen = sizeof(*blocksize_bits);
558 } else if (KEY_IS(KEY_LAST_ID)) {
559 obd_id *last_id = val;
561 if (*vallen < sizeof(*last_id))
563 *last_id = ofd_last_id(ofd,
564 exp->exp_filter_data.fed_group);
566 *vallen = sizeof(*last_id);
567 } else if (KEY_IS(KEY_FIEMAP)) {
568 struct ofd_thread_info *info;
569 struct ofd_device *ofd = ofd_exp(exp);
570 struct ofd_object *fo;
571 struct ll_fiemap_info_key *fm_key = key;
574 *vallen = fiemap_count_to_size(
575 fm_key->fiemap.fm_extent_count);
579 info = ofd_info_init(env, exp);
581 fid_ostid_unpack(&info->fti_fid, &fm_key->oa.o_oi, 0);
583 CDEBUG(D_INODE, "get FIEMAP of object "DFID"\n",
584 PFID(&info->fti_fid));
586 fo = ofd_object_find(env, ofd, &info->fti_fid);
588 CERROR("%s: error finding object "DFID"\n",
589 exp->exp_obd->obd_name, PFID(&info->fti_fid));
592 struct ll_user_fiemap *fiemap = val;
594 ofd_read_lock(env, fo);
595 if (ofd_object_exists(fo)) {
596 *fiemap = fm_key->fiemap;
597 rc = dt_fiemap_get(env,
598 ofd_object_child(fo),
603 ofd_read_unlock(env, fo);
604 ofd_object_put(env, fo);
606 } else if (KEY_IS(KEY_SYNC_LOCK_CANCEL)) {
607 *((__u32 *) val) = ofd->ofd_sync_lock_cancel;
608 *vallen = sizeof(__u32);
610 CERROR("Not supported key %s\n", (char*)key);
617 /** helper function for statfs, also used by grant code */
618 int ofd_statfs_internal(const struct lu_env *env, struct ofd_device *ofd,
619 struct obd_statfs *osfs, __u64 max_age, int *from_cache)
623 cfs_spin_lock(&ofd->ofd_osfs_lock);
624 if (cfs_time_before_64(ofd->ofd_osfs_age, max_age) || max_age == 0) {
627 /* statfs data are too old, get up-to-date one.
628 * we must be cautious here since multiple threads might be
629 * willing to update statfs data concurrently and we must
630 * grant that cached statfs data are always consistent */
632 if (ofd->ofd_statfs_inflight == 0)
633 /* clear inflight counter if no users, although it would
634 * take a while to overflow this 64-bit counter ... */
635 ofd->ofd_osfs_inflight = 0;
636 /* notify ofd_grant_commit() that we want to track writes
637 * completed as of now */
638 ofd->ofd_statfs_inflight++;
639 /* record value of inflight counter before running statfs to
640 * compute the diff once statfs is completed */
641 unstable = ofd->ofd_osfs_inflight;
642 cfs_spin_unlock(&ofd->ofd_osfs_lock);
644 /* statfs can sleep ... hopefully not for too long since we can
645 * call it fairly often as space fills up */
646 rc = dt_statfs(env, ofd->ofd_osd, osfs);
650 cfs_spin_lock(&ofd->ofd_grant_lock);
651 cfs_spin_lock(&ofd->ofd_osfs_lock);
652 /* calculate how much space was written while we released the
654 unstable = ofd->ofd_osfs_inflight - unstable;
655 ofd->ofd_osfs_unstable = 0;
657 /* some writes completed while we were running statfs
658 * w/o the ofd_osfs_lock. Those ones got added to
659 * the cached statfs data that we are about to crunch.
660 * Take them into account in the new statfs data */
661 osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
662 unstable >> ofd->ofd_blockbits);
663 /* However, we don't really know if those writes got
664 * accounted in the statfs call, so tell
665 * ofd_grant_space_left() there is some uncertainty
666 * on the accounting of those writes.
667 * The purpose is to prevent spurious error messages in
668 * ofd_grant_space_left() since those writes might be
669 * accounted twice. */
670 ofd->ofd_osfs_unstable += unstable;
672 /* similarly, there is some uncertainty on write requests
673 * between prepare & commit */
674 ofd->ofd_osfs_unstable += ofd->ofd_tot_pending;
675 cfs_spin_unlock(&ofd->ofd_grant_lock);
677 /* finally udpate cached statfs data */
678 ofd->ofd_osfs = *osfs;
679 ofd->ofd_osfs_age = cfs_time_current_64();
681 ofd->ofd_statfs_inflight--; /* stop tracking */
682 if (ofd->ofd_statfs_inflight == 0)
683 ofd->ofd_osfs_inflight = 0;
684 cfs_spin_unlock(&ofd->ofd_osfs_lock);
689 /* use cached statfs data */
690 *osfs = ofd->ofd_osfs;
691 cfs_spin_unlock(&ofd->ofd_osfs_lock);
698 static int ofd_statfs(const struct lu_env *env, struct obd_export *exp,
699 struct obd_statfs *osfs, __u64 max_age, __u32 flags)
701 struct obd_device *obd = class_exp2obd(exp);
702 struct ofd_device *ofd = ofd_dev(exp->exp_obd->obd_lu_dev);
707 rc = ofd_statfs_internal(env, ofd, osfs, max_age, NULL);
711 /* at least try to account for cached pages. its still racy and
712 * might be under-reporting if clients haven't announced their
713 * caches with brw recently */
715 CDEBUG(D_SUPER | D_CACHE, "blocks cached "LPU64" granted "LPU64
716 " pending "LPU64" free "LPU64" avail "LPU64"\n",
717 ofd->ofd_tot_dirty, ofd->ofd_tot_granted, ofd->ofd_tot_pending,
718 osfs->os_bfree << ofd->ofd_blockbits,
719 osfs->os_bavail << ofd->ofd_blockbits);
721 osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
722 ((ofd->ofd_tot_dirty + ofd->ofd_tot_pending +
723 osfs->os_bsize - 1) >> ofd->ofd_blockbits));
725 /* The QoS code on the MDS does not care about space reserved for
726 * precreate, so take it out. */
727 if (exp->exp_connect_flags & OBD_CONNECT_MDS) {
728 struct filter_export_data *fed;
730 fed = &obd->obd_self_export->exp_filter_data;
731 osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
732 fed->fed_grant >> ofd->ofd_blockbits);
735 ofd_grant_sanity_check(obd, __FUNCTION__);
736 CDEBUG(D_CACHE, LPU64" blocks: "LPU64" free, "LPU64" avail; "
737 LPU64" objects: "LPU64" free; state %x\n",
738 osfs->os_blocks, osfs->os_bfree, osfs->os_bavail,
739 osfs->os_files, osfs->os_ffree, osfs->os_state);
741 if (OBD_FAIL_CHECK_VALUE(OBD_FAIL_OST_ENOINO,
742 ofd->ofd_lut.lut_lsd.lsd_ost_index))
745 /* OS_STATE_READONLY can be set by OSD already */
746 if (ofd->ofd_raid_degraded)
747 osfs->os_state |= OS_STATE_DEGRADED;
749 if (obd->obd_self_export != exp && ofd_grant_compat(exp, ofd)) {
750 /* clients which don't support OBD_CONNECT_GRANT_PARAM
751 * should not see a block size > page size, otherwise
752 * cl_lost_grant goes mad. Therefore, we emulate a 4KB (=2^12)
753 * block size which is the biggest block size known to work
754 * with all client's page size. */
755 osfs->os_blocks <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
756 osfs->os_bfree <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
757 osfs->os_bavail <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
758 osfs->os_bsize = 1 << COMPAT_BSIZE_SHIFT;
761 if (OBD_FAIL_CHECK_VALUE(OBD_FAIL_OST_ENOSPC,
762 ofd->ofd_lut.lut_lsd.lsd_ost_index))
763 osfs->os_bfree = osfs->os_bavail = 2;
770 int ofd_setattr(const struct lu_env *env, struct obd_export *exp,
771 struct obd_info *oinfo, struct obd_trans_info *oti)
773 struct ofd_thread_info *info;
774 struct ofd_device *ofd = ofd_exp(exp);
775 struct ldlm_namespace *ns = ofd->ofd_namespace;
776 struct ldlm_resource *res;
777 struct ofd_object *fo;
778 struct obdo *oa = oinfo->oi_oa;
779 struct filter_fid *ff = NULL;
784 info = ofd_info_init(env, exp);
785 ofd_oti2info(info, oti);
787 fid_ostid_unpack(&info->fti_fid, &oinfo->oi_oa->o_oi, 0);
788 ofd_build_resid(&info->fti_fid, &info->fti_resid);
790 rc = ofd_auth_capa(exp, &info->fti_fid, oa->o_seq,
791 oinfo_capa(oinfo), CAPA_OPC_META_WRITE);
795 /* This would be very bad - accidentally truncating a file when
796 * changing the time or similar - bug 12203. */
797 if (oinfo->oi_oa->o_valid & OBD_MD_FLSIZE &&
798 oinfo->oi_policy.l_extent.end != OBD_OBJECT_EOF) {
799 static char mdsinum[48];
801 if (oinfo->oi_oa->o_valid & OBD_MD_FLFID)
802 snprintf(mdsinum, sizeof(mdsinum) - 1,
803 "of parent "DFID, oinfo->oi_oa->o_parent_seq,
804 oinfo->oi_oa->o_parent_oid, 0);
808 CERROR("%s: setattr from %s trying to truncate object "DFID
809 " %s\n", exp->exp_obd->obd_name,
810 obd_export_nid2str(exp), PFID(&info->fti_fid), mdsinum);
811 GOTO(out, rc = -EPERM);
814 fo = ofd_object_find(env, ofd, &info->fti_fid);
816 CERROR("%s: can't find object "DFID"\n",
817 exp->exp_obd->obd_name, PFID(&info->fti_fid));
818 GOTO(out, rc = PTR_ERR(fo));
821 la_from_obdo(&info->fti_attr, oinfo->oi_oa, oinfo->oi_oa->o_valid);
822 info->fti_attr.la_valid &= ~LA_TYPE;
824 if (oa->o_valid & OBD_MD_FLFID) {
825 ff = &info->fti_mds_fid;
826 ofd_prepare_fidea(ff, oa);
829 /* setting objects attributes (including owner/group) */
830 rc = ofd_attr_set(env, fo, &info->fti_attr, ff);
832 GOTO(out_unlock, rc);
834 res = ldlm_resource_get(ns, NULL, &info->fti_resid, LDLM_EXTENT, 0);
836 ldlm_res_lvbo_update(res, NULL, 0);
837 ldlm_resource_putref(res);
840 oinfo->oi_oa->o_valid = OBD_MD_FLID;
842 /* Quota release needs uid/gid info */
843 rc = ofd_attr_get(env, fo, &info->fti_attr);
844 obdo_from_la(oinfo->oi_oa, &info->fti_attr,
845 OFD_VALID_FLAGS | LA_UID | LA_GID);
846 ofd_info2oti(info, oti);
848 ofd_counter_incr(exp, LPROC_OFD_STATS_SETATTR, oti->oti_jobid, 1);
851 ofd_object_put(env, fo);
856 static int ofd_punch(const struct lu_env *env, struct obd_export *exp,
857 struct obd_info *oinfo, struct obd_trans_info *oti,
858 struct ptlrpc_request_set *rqset)
860 struct ofd_thread_info *info;
861 struct ofd_device *ofd = ofd_exp(exp);
862 struct ldlm_namespace *ns = ofd->ofd_namespace;
863 struct ldlm_resource *res;
864 struct ofd_object *fo;
865 struct filter_fid *ff = NULL;
870 info = ofd_info_init(env, exp);
871 ofd_oti2info(info, oti);
873 fid_ostid_unpack(&info->fti_fid, &oinfo->oi_oa->o_oi, 0);
874 ofd_build_resid(&info->fti_fid, &info->fti_resid);
876 CDEBUG(D_INODE, "calling punch for object "DFID", valid = "LPX64
877 ", start = "LPD64", end = "LPD64"\n", PFID(&info->fti_fid),
878 oinfo->oi_oa->o_valid, oinfo->oi_policy.l_extent.start,
879 oinfo->oi_policy.l_extent.end);
881 rc = ofd_auth_capa(exp, &info->fti_fid, oinfo->oi_oa->o_seq,
882 oinfo_capa(oinfo), CAPA_OPC_OSS_TRUNC);
886 fo = ofd_object_find(env, ofd, &info->fti_fid);
888 CERROR("%s: error finding object "DFID": rc = %ld\n",
889 exp->exp_obd->obd_name, PFID(&info->fti_fid),
891 GOTO(out_env, rc = PTR_ERR(fo));
894 LASSERT(oinfo->oi_policy.l_extent.end == OBD_OBJECT_EOF);
895 if (oinfo->oi_policy.l_extent.end == OBD_OBJECT_EOF) {
897 oinfo->oi_oa->o_size = oinfo->oi_policy.l_extent.start;
898 } else if (oinfo->oi_policy.l_extent.end >= oinfo->oi_oa->o_size) {
899 oinfo->oi_oa->o_size = oinfo->oi_policy.l_extent.end;
902 la_from_obdo(&info->fti_attr, oinfo->oi_oa,
903 OBD_MD_FLMTIME | OBD_MD_FLATIME | OBD_MD_FLCTIME);
904 info->fti_attr.la_valid &= ~LA_TYPE;
905 info->fti_attr.la_size = oinfo->oi_policy.l_extent.start;
906 info->fti_attr.la_valid |= LA_SIZE;
908 if (oinfo->oi_oa->o_valid & OBD_MD_FLFID) {
909 ff = &info->fti_mds_fid;
910 ofd_prepare_fidea(ff, oinfo->oi_oa);
913 rc = ofd_object_punch(env, fo, oinfo->oi_policy.l_extent.start,
914 oinfo->oi_policy.l_extent.end, &info->fti_attr,
919 res = ldlm_resource_get(ns, NULL, &info->fti_resid, LDLM_EXTENT, 0);
921 ldlm_res_lvbo_update(res, NULL, 0);
922 ldlm_resource_putref(res);
925 oinfo->oi_oa->o_valid = OBD_MD_FLID;
926 /* Quota release needs uid/gid info */
927 rc = ofd_attr_get(env, fo, &info->fti_attr);
928 obdo_from_la(oinfo->oi_oa, &info->fti_attr,
929 OFD_VALID_FLAGS | LA_UID | LA_GID);
930 ofd_info2oti(info, oti);
932 ofd_counter_incr(exp, LPROC_OFD_STATS_PUNCH, oti->oti_jobid, 1);
935 ofd_object_put(env, fo);
940 static int ofd_destroy_by_fid(const struct lu_env *env,
941 struct ofd_device *ofd,
942 const struct lu_fid *fid, int orphan)
944 struct ofd_thread_info *info = ofd_info(env);
945 struct lustre_handle lockh;
946 int flags = LDLM_AST_DISCARD_DATA, rc = 0;
947 ldlm_policy_data_t policy = {
948 .l_extent = { 0, OBD_OBJECT_EOF }
950 struct ofd_object *fo;
954 fo = ofd_object_find(env, ofd, fid);
958 /* Tell the clients that the object is gone now and that they should
959 * throw away any cached pages. */
960 ofd_build_resid(fid, &info->fti_resid);
961 rc = ldlm_cli_enqueue_local(ofd->ofd_namespace, &info->fti_resid,
962 LDLM_EXTENT, &policy, LCK_PW, &flags,
963 ldlm_blocking_ast, ldlm_completion_ast,
964 NULL, NULL, 0, NULL, &lockh);
966 /* We only care about the side-effects, just drop the lock. */
968 ldlm_lock_decref(&lockh, LCK_PW);
972 rc = ofd_object_destroy(env, fo, orphan);
974 ofd_object_put(env, fo);
978 int ofd_destroy(const struct lu_env *env, struct obd_export *exp,
979 struct obdo *oa, struct lov_stripe_md *md,
980 struct obd_trans_info *oti, struct obd_export *md_exp,
983 struct ofd_device *ofd = ofd_exp(exp);
984 struct ofd_thread_info *info;
990 info = ofd_info_init(env, exp);
991 ofd_oti2info(info, oti);
993 if (!(oa->o_valid & OBD_MD_FLGROUP))
996 /* check that o_misc makes sense */
997 if (oa->o_valid & OBD_MD_FLOBJCOUNT)
1000 count = 1; /* default case - single destroy */
1003 * There can be sequence of objects to destroy. Therefore this request
1004 * may have multiple transaction involved in. It is OK, we need only
1005 * the highest used transno to be reported back in reply but not for
1006 * replays, they must report their transno
1008 if (info->fti_transno == 0) /* not replay */
1009 info->fti_mult_trans = 1;
1013 fid_ostid_unpack(&info->fti_fid, &oa->o_oi, 0);
1014 lrc = ofd_destroy_by_fid(env, ofd, &info->fti_fid, 0);
1015 if (lrc == -ENOENT) {
1017 "%s: destroying non-existent object "DFID"\n",
1018 ofd_obd(ofd)->obd_name, PFID(&info->fti_fid));
1019 /* rewrite rc with -ENOENT only if it is 0 */
1022 } else if (lrc != 0) {
1023 CERROR("%s: error destroying object "DFID": %d\n",
1024 ofd_obd(ofd)->obd_name, PFID(&info->fti_fid),
1032 /* if we have transaction then there were some deletions, we don't
1033 * need to return ENOENT in that case because it will not wait
1034 * for commit of these deletions. The ENOENT must be returned only
1035 * if there were no transations.
1037 if (rc == -ENOENT) {
1038 if (info->fti_transno != 0)
1040 } else if (rc != 0) {
1042 * If we have at least one transaction then llog record
1043 * on server will be removed upon commit, so for rc != 0
1044 * we return no transno and llog record will be reprocessed.
1046 info->fti_transno = 0;
1048 ofd_info2oti(info, oti);
1052 static int ofd_orphans_destroy(const struct lu_env *env,
1053 struct obd_export *exp, struct ofd_device *ofd,
1056 struct ofd_thread_info *info = ofd_info(env);
1060 struct ost_id oi = oa->o_oi;
1064 LASSERT(exp != NULL);
1065 skip_orphan = !!(exp->exp_connect_flags & OBD_CONNECT_SKIP_ORPHAN);
1067 last = ofd_last_id(ofd, oa->o_seq);
1068 CWARN("%s: deleting orphan objects from "LPU64" to "LPU64"\n",
1069 ofd_obd(ofd)->obd_name, oa->o_id + 1, last);
1071 for (oi.oi_id = last; oi.oi_id > oa->o_id; oi.oi_id--) {
1072 fid_ostid_unpack(&info->fti_fid, &oi, 0);
1073 rc = ofd_destroy_by_fid(env, ofd, &info->fti_fid, 1);
1074 if (rc && rc != -ENOENT) /* this is pretty fatal... */
1075 CEMERG("error destroying precreated id "LPU64": %d\n",
1078 ofd_last_id_set(ofd, oi.oi_id - 1, oa->o_seq);
1079 /* update last_id on disk periodically so that if we
1080 * restart * we don't need to re-scan all of the just
1081 * deleted objects. */
1082 if ((oi.oi_id & 511) == 0)
1083 ofd_last_id_write(env, ofd, oa->o_seq);
1086 CDEBUG(D_HA, "%s: after destroy: set last_objids["LPU64"] = "LPU64"\n",
1087 ofd_obd(ofd)->obd_name, oa->o_seq, oa->o_id);
1089 rc = ofd_last_id_write(env, ofd, oa->o_seq);
1091 /* don't reuse orphan object, return last used objid */
1098 int ofd_create(const struct lu_env *env, struct obd_export *exp,
1099 struct obdo *oa, struct lov_stripe_md **ea,
1100 struct obd_trans_info *oti)
1102 struct ofd_device *ofd = ofd_exp(exp);
1103 struct ofd_thread_info *info;
1108 info = ofd_info_init(env, exp);
1109 ofd_oti2info(info, oti);
1111 LASSERT(oa->o_seq >= FID_SEQ_OST_MDT0);
1112 LASSERT(oa->o_valid & OBD_MD_FLGROUP);
1114 CDEBUG(D_INFO, "ofd_create(oa->o_seq="LPU64",oa->o_id="LPU64")\n",
1115 oa->o_seq, oa->o_id);
1117 if ((oa->o_valid & OBD_MD_FLFLAGS) &&
1118 (oa->o_flags & OBD_FL_RECREATE_OBJS)) {
1119 if (!ofd_obd(ofd)->obd_recovering ||
1120 oa->o_id > ofd_last_id(ofd, oa->o_seq)) {
1121 CERROR("recreate objid "LPU64" > last id "LPU64"\n",
1122 oa->o_id, ofd_last_id(ofd, oa->o_seq));
1123 GOTO(out_nolock, rc = -EINVAL);
1125 /* do nothing because we create objects during first write */
1126 GOTO(out_nolock, rc = 0);
1128 /* former ofd_handle_precreate */
1129 if ((oa->o_valid & OBD_MD_FLFLAGS) &&
1130 (oa->o_flags & OBD_FL_DELORPHAN)) {
1131 /* destroy orphans */
1132 if (oti->oti_conn_cnt < exp->exp_conn_cnt) {
1133 CERROR("%s: dropping old orphan cleanup request\n",
1134 ofd_obd(ofd)->obd_name);
1135 GOTO(out_nolock, rc = 0);
1137 /* This causes inflight precreates to abort and drop lock */
1138 cfs_set_bit(oa->o_seq, &ofd->ofd_destroys_in_progress);
1139 cfs_mutex_lock(&ofd->ofd_create_locks[oa->o_seq]);
1140 if (!cfs_test_bit(oa->o_seq, &ofd->ofd_destroys_in_progress)) {
1141 CERROR("%s:["LPU64"] destroys_in_progress already cleared\n",
1142 exp->exp_obd->obd_name, oa->o_seq);
1145 diff = oa->o_id - ofd_last_id(ofd, oa->o_seq);
1146 CDEBUG(D_HA, "ofd_last_id() = "LPU64" -> diff = %d\n",
1147 ofd_last_id(ofd, oa->o_seq), diff);
1148 if (-diff > OST_MAX_PRECREATE) {
1149 /* FIXME: should reset precreate_next_id on MDS */
1151 } else if (diff < 0) {
1152 rc = ofd_orphans_destroy(env, exp, ofd, oa);
1153 cfs_clear_bit(oa->o_seq, &ofd->ofd_destroys_in_progress);
1155 /* XXX: Used by MDS for the first time! */
1156 cfs_clear_bit(oa->o_seq, &ofd->ofd_destroys_in_progress);
1159 cfs_mutex_lock(&ofd->ofd_create_locks[oa->o_seq]);
1160 if (oti->oti_conn_cnt < exp->exp_conn_cnt) {
1161 CERROR("%s: dropping old precreate request\n",
1162 ofd_obd(ofd)->obd_name);
1165 /* only precreate if group == 0 and o_id is specfied */
1166 if (!fid_seq_is_mdt(oa->o_seq) || oa->o_id == 0) {
1167 diff = 1; /* shouldn't we create this right now? */
1169 diff = oa->o_id - ofd_last_id(ofd, oa->o_seq);
1173 cfs_time_t enough_time = cfs_time_shift(DISK_TIMEOUT);
1178 if (!(oa->o_valid & OBD_MD_FLFLAGS) ||
1179 !(oa->o_flags & OBD_FL_DELORPHAN)) {
1180 /* don't enforce grant during orphan recovery */
1181 rc = ofd_grant_create(env,
1182 ofd_obd(ofd)->obd_self_export,
1185 CDEBUG(D_HA, "%s: failed to acquire grant space"
1186 "for precreate (%d)\n",
1187 ofd_obd(ofd)->obd_name, diff);
1193 next_id = ofd_last_id(ofd, oa->o_seq) + 1;
1194 count = ofd_precreate_batch(ofd, diff);
1196 CDEBUG(D_HA, "%s: reserve %d objects in group "LPU64
1197 " at "LPU64"\n", ofd_obd(ofd)->obd_name,
1198 count, oa->o_seq, next_id);
1200 if (cfs_time_after(jiffies, enough_time)) {
1201 LCONSOLE_WARN("%s: Slow creates, %d/%d objects"
1202 " created at a rate of %d/s\n",
1203 ofd_obd(ofd)->obd_name,
1204 created, diff + created,
1205 created / DISK_TIMEOUT);
1209 rc = ofd_precreate_objects(env, ofd, next_id,
1214 } else if (rc < 0) {
1219 /* some objects got created, we can return
1220 * them, even if last creation failed */
1221 oa->o_id = ofd_last_id(ofd, oa->o_seq);
1224 CERROR("unable to precreate: %d\n", rc);
1225 oa->o_id = ofd_last_id(ofd, oa->o_seq);
1228 oa->o_valid |= OBD_MD_FLID | OBD_MD_FLGROUP;
1230 if (!(oa->o_valid & OBD_MD_FLFLAGS) ||
1231 !(oa->o_flags & OBD_FL_DELORPHAN))
1232 ofd_grant_commit(env, ofd_obd(ofd)->obd_self_export,
1236 ofd_info2oti(info, oti);
1238 cfs_mutex_unlock(&ofd->ofd_create_locks[oa->o_seq]);
1240 if (rc == 0 && ea != NULL) {
1241 struct lov_stripe_md *lsm = *ea;
1243 lsm->lsm_object_id = oa->o_id;
1248 int ofd_getattr(const struct lu_env *env, struct obd_export *exp,
1249 struct obd_info *oinfo)
1251 struct ofd_device *ofd = ofd_exp(exp);
1252 struct ofd_thread_info *info;
1253 struct ofd_object *fo;
1259 info = ofd_info_init(env, exp);
1261 fid_ostid_unpack(&info->fti_fid, &oinfo->oi_oa->o_oi, 0);
1262 rc = ofd_auth_capa(exp, &info->fti_fid, oinfo->oi_oa->o_seq,
1263 oinfo_capa(oinfo), CAPA_OPC_META_READ);
1267 fo = ofd_object_find(env, ofd, &info->fti_fid);
1269 GOTO(out, rc = PTR_ERR(fo));
1270 LASSERT(fo != NULL);
1271 rc = ofd_attr_get(env, fo, &info->fti_attr);
1272 oinfo->oi_oa->o_valid = OBD_MD_FLID;
1274 obdo_from_la(oinfo->oi_oa, &info->fti_attr,
1275 OFD_VALID_FLAGS | LA_UID | LA_GID);
1277 /* Store object version in reply */
1278 curr_version = dt_version_get(env, ofd_object_child(fo));
1279 if ((__s64)curr_version != -EOPNOTSUPP) {
1280 oinfo->oi_oa->o_valid |= OBD_MD_FLDATAVERSION;
1281 oinfo->oi_oa->o_data_version = curr_version;
1283 ofd_object_put(env, fo);
1288 static int ofd_sync(const struct lu_env *env, struct obd_export *exp,
1289 struct obd_info *oinfo, obd_size start, obd_size end,
1290 struct ptlrpc_request_set *set)
1292 struct ofd_device *ofd = ofd_exp(exp);
1293 struct ofd_thread_info *info;
1294 struct ofd_object *fo;
1299 /* if no objid is specified, it means "sync whole filesystem" */
1300 if (oinfo->oi_oa == NULL || !(oinfo->oi_oa->o_valid & OBD_MD_FLID)) {
1301 rc = dt_sync(env, ofd->ofd_osd);
1305 info = ofd_info_init(env, exp);
1306 fid_ostid_unpack(&info->fti_fid, &oinfo->oi_oa->o_oi, 0);
1308 rc = ofd_auth_capa(exp, &info->fti_fid, oinfo->oi_oa->o_seq,
1309 oinfo_capa(oinfo), CAPA_OPC_OSS_TRUNC);
1313 fo = ofd_object_find(env, ofd, &info->fti_fid);
1315 CERROR("%s: error finding object "DFID": rc = %ld\n",
1316 exp->exp_obd->obd_name, PFID(&info->fti_fid),
1318 GOTO(out, rc = PTR_ERR(fo));
1321 if (!ofd_object_exists(fo))
1322 GOTO(put, rc = -ENOENT);
1324 if (dt_version_get(env, ofd_object_child(fo)) >
1325 ofd_obd(ofd)->obd_last_committed) {
1326 rc = dt_object_sync(env, ofd_object_child(fo));
1331 oinfo->oi_oa->o_valid = OBD_MD_FLID;
1332 rc = ofd_attr_get(env, fo, &info->fti_attr);
1333 obdo_from_la(oinfo->oi_oa, &info->fti_attr, OFD_VALID_FLAGS);
1335 ofd_counter_incr(exp, LPROC_OFD_STATS_SYNC, oinfo->oi_jobid, 1);
1338 ofd_object_put(env, fo);
1343 int ofd_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
1344 void *karg, void *uarg)
1347 struct ofd_device *ofd = ofd_exp(exp);
1348 struct obd_device *obd = ofd_obd(ofd);
1353 CDEBUG(D_IOCTL, "handling ioctl cmd %#x\n", cmd);
1354 rc = lu_env_init(&env, LCT_LOCAL);
1359 case OBD_IOC_ABORT_RECOVERY:
1360 CERROR("%s: aborting recovery\n", obd->obd_name);
1361 target_stop_recovery_thread(obd);
1364 CDEBUG(D_RPCTRACE, "syncing ost %s\n", obd->obd_name);
1365 rc = dt_sync(&env, ofd->ofd_osd);
1367 case OBD_IOC_SET_READONLY:
1368 rc = dt_sync(&env, ofd->ofd_osd);
1370 rc = dt_ro(&env, ofd->ofd_osd);
1373 CERROR("%s: not supported cmd = %d\n", obd->obd_name, cmd);
1381 static int ofd_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
1388 case OBD_CLEANUP_EARLY:
1390 case OBD_CLEANUP_EXPORTS:
1391 target_cleanup_recovery(obd);
1397 static int ofd_ping(const struct lu_env *env, struct obd_export *exp)
1399 ofd_fmd_expire(exp);
1403 static int ofd_health_check(const struct lu_env *nul, struct obd_device *obd)
1405 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
1406 struct ofd_thread_info *info;
1408 #ifdef USE_HEALTH_CHECK_WRITE
1413 /* obd_proc_read_health pass NULL env, we need real one */
1414 rc = lu_env_init(&env, LCT_DT_THREAD);
1418 info = ofd_info_init(&env, NULL);
1419 rc = dt_statfs(&env, ofd->ofd_osd, &info->fti_u.osfs);
1423 if (info->fti_u.osfs.os_state == OS_STATE_READONLY)
1424 GOTO(out, rc = -EROFS);
1426 #ifdef USE_HEALTH_CHECK_WRITE
1427 OBD_ALLOC(info->fti_buf.lb_buf, CFS_PAGE_SIZE);
1428 if (info->fti_buf.lb_buf == NULL)
1429 GOTO(out, rc = -ENOMEM);
1431 info->fti_buf.lb_len = CFS_PAGE_SIZE;
1434 th = dt_trans_create(&env, ofd->ofd_osd);
1436 GOTO(out, rc = PTR_ERR(th));
1438 rc = dt_declare_record_write(&env, ofd->ofd_health_check_file,
1439 info->fti_buf.lb_len, info->fti_off, th);
1441 th->th_sync = 1; /* sync IO is needed */
1442 rc = dt_trans_start_local(&env, ofd->ofd_osd, th);
1444 rc = dt_record_write(&env, ofd->ofd_health_check_file,
1445 &info->fti_buf, &info->fti_off,
1448 dt_trans_stop(&env, ofd->ofd_osd, th);
1450 OBD_FREE(info->fti_buf.lb_buf, CFS_PAGE_SIZE);
1452 CDEBUG(D_INFO, "write 1 page synchronously for checking io rc %d\n",rc);
1459 static int ofd_obd_notify(struct obd_device *obd, struct obd_device *unused,
1460 enum obd_notify_event ev, void *data)
1463 case OBD_NOTIFY_CONFIG:
1464 LASSERT(obd->obd_no_conn);
1465 cfs_spin_lock(&obd->obd_dev_lock);
1466 obd->obd_no_conn = 0;
1467 cfs_spin_unlock(&obd->obd_dev_lock);
1470 CDEBUG(D_INFO, "%s: Unhandled notification %#x\n",
1477 * Handle quota control requests to consult current usage/limit.
1479 * \param obd - is the obd device associated with the ofd
1480 * \param exp - is the client's export
1481 * \param oqctl - is the obd_quotactl request to be processed
1483 static int ofd_quotactl(struct obd_device *obd, struct obd_export *exp,
1484 struct obd_quotactl *oqctl)
1486 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
1491 /* report success for quota on/off for interoperability with current MDT
1493 if (oqctl->qc_cmd == Q_QUOTAON || oqctl->qc_cmd == Q_QUOTAOFF)
1496 rc = lu_env_init(&env, LCT_DT_THREAD);
1500 rc = lquotactl_slv(&env, ofd->ofd_osd, oqctl);
1506 struct obd_ops ofd_obd_ops = {
1507 .o_owner = THIS_MODULE,
1508 .o_connect = ofd_obd_connect,
1509 .o_reconnect = ofd_obd_reconnect,
1510 .o_disconnect = ofd_obd_disconnect,
1511 .o_set_info_async = ofd_set_info_async,
1512 .o_get_info = ofd_get_info,
1513 .o_create = ofd_create,
1514 .o_statfs = ofd_statfs,
1515 .o_setattr = ofd_setattr,
1516 .o_preprw = ofd_preprw,
1517 .o_commitrw = ofd_commitrw,
1518 .o_destroy = ofd_destroy,
1519 .o_init_export = ofd_init_export,
1520 .o_destroy_export = ofd_destroy_export,
1521 .o_postrecov = ofd_obd_postrecov,
1522 .o_punch = ofd_punch,
1523 .o_getattr = ofd_getattr,
1525 .o_iocontrol = ofd_iocontrol,
1526 .o_precleanup = ofd_precleanup,
1528 .o_health_check = ofd_health_check,
1529 .o_notify = ofd_obd_notify,
1530 .o_quotactl = ofd_quotactl,