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, 2013, 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 <lustre/lustre_idl.h>
46 #include "ofd_internal.h"
47 #include <obd_cksum.h>
48 #include <lustre_ioctl.h>
49 #include <lustre_quota.h>
50 #include <lustre_lfsck.h>
52 static int ofd_export_stats_init(struct ofd_device *ofd,
53 struct obd_export *exp, void *client_nid)
55 struct obd_device *obd = ofd_obd(ofd);
56 struct nid_stat *stats;
62 LASSERT(obd->obd_uses_nid_stats);
64 if (obd_uuid_equals(&exp->exp_client_uuid, &obd->obd_uuid))
65 /* Self-export gets no proc entry */
68 rc = lprocfs_exp_setup(exp, client_nid, &newnid);
70 /* Mask error for already created
80 stats = exp->exp_nid_stats;
81 LASSERT(stats != NULL);
83 num_stats = NUM_OBD_STATS + LPROC_OFD_STATS_LAST;
85 stats->nid_stats = lprocfs_alloc_stats(num_stats,
86 LPROCFS_STATS_FLAG_NOPERCPU);
87 if (stats->nid_stats == NULL)
90 lprocfs_init_ops_stats(LPROC_OFD_STATS_LAST, stats->nid_stats);
91 ofd_stats_counter_init(stats->nid_stats);
92 rc = lprocfs_register_stats(stats->nid_proc, "stats",
97 rc = lprocfs_nid_ldlm_stats_init(stats);
99 lprocfs_free_stats(&stats->nid_stats);
108 static int ofd_parse_connect_data(const struct lu_env *env,
109 struct obd_export *exp,
110 struct obd_connect_data *data,
113 struct ofd_device *ofd = ofd_exp(exp);
114 struct filter_export_data *fed = &exp->exp_filter_data;
119 CDEBUG(D_RPCTRACE, "%s: cli %s/%p ocd_connect_flags: "LPX64
120 " ocd_version: %x ocd_grant: %d ocd_index: %u"
122 exp->exp_obd->obd_name, exp->exp_client_uuid.uuid, exp,
123 data->ocd_connect_flags, data->ocd_version,
124 data->ocd_grant, data->ocd_index, data->ocd_group);
126 if (fed->fed_group != 0 && fed->fed_group != data->ocd_group) {
127 CWARN("!!! This export (nid %s) used object group %d "
128 "earlier; now it's trying to use group %d! This could "
129 "be a bug in the MDS. Please report to "
130 "https://jira.hpdd.intel.com/\n",
131 obd_export_nid2str(exp), fed->fed_group,
135 fed->fed_group = data->ocd_group;
137 data->ocd_connect_flags &= OST_CONNECT_SUPPORTED;
138 data->ocd_version = LUSTRE_VERSION_CODE;
140 /* Kindly make sure the SKIP_ORPHAN flag is from MDS. */
141 if (data->ocd_connect_flags & OBD_CONNECT_MDS)
142 CDEBUG(D_HA, "%s: Received MDS connection for group %u\n",
143 exp->exp_obd->obd_name, data->ocd_group);
144 else if (data->ocd_connect_flags & OBD_CONNECT_SKIP_ORPHAN)
147 if (ofd_grant_param_supp(exp)) {
148 exp->exp_filter_data.fed_pagesize = data->ocd_blocksize;
149 /* ocd_{blocksize,inodespace} are log2 values */
150 data->ocd_blocksize = ofd->ofd_blockbits;
151 data->ocd_inodespace = ofd->ofd_dt_conf.ddp_inodespace;
152 /* ocd_grant_extent is in 1K blocks */
153 data->ocd_grant_extent = ofd->ofd_dt_conf.ddp_grant_frag >> 10;
156 if (data->ocd_connect_flags & OBD_CONNECT_GRANT)
157 data->ocd_grant = ofd_grant_connect(env, exp, data->ocd_grant,
160 if (data->ocd_connect_flags & OBD_CONNECT_INDEX) {
161 struct lr_server_data *lsd = &ofd->ofd_lut.lut_lsd;
162 int index = lsd->lsd_osd_index;
164 if (index != data->ocd_index) {
165 LCONSOLE_ERROR_MSG(0x136, "Connection from %s to index"
166 " %u doesn't match actual OST index"
167 " %u in last_rcvd file, bad "
169 obd_export_nid2str(exp), index,
173 if (!(lsd->lsd_feature_compat & OBD_COMPAT_OST)) {
174 /* this will only happen on the first connect */
175 lsd->lsd_feature_compat |= OBD_COMPAT_OST;
176 /* sync is not needed here as lut_client_add will
177 * set exp_need_sync flag */
178 tgt_server_data_update(env, &ofd->ofd_lut, 0);
181 if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_SIZE)) {
182 data->ocd_brw_size = 65536;
183 } else if (data->ocd_connect_flags & OBD_CONNECT_BRW_SIZE) {
184 data->ocd_brw_size = min(data->ocd_brw_size,
185 (__u32)DT_MAX_BRW_SIZE);
186 if (data->ocd_brw_size == 0) {
187 CERROR("%s: cli %s/%p ocd_connect_flags: "LPX64
188 " ocd_version: %x ocd_grant: %d ocd_index: %u "
189 "ocd_brw_size is unexpectedly zero, "
190 "network data corruption?"
191 "Refusing connection of this client\n",
192 exp->exp_obd->obd_name,
193 exp->exp_client_uuid.uuid,
194 exp, data->ocd_connect_flags, data->ocd_version,
195 data->ocd_grant, data->ocd_index);
200 if (data->ocd_connect_flags & OBD_CONNECT_CKSUM) {
201 __u32 cksum_types = data->ocd_cksum_types;
203 /* The client set in ocd_cksum_types the checksum types it
204 * supports. We have to mask off the algorithms that we don't
206 data->ocd_cksum_types &= cksum_types_supported_server();
208 if (unlikely(data->ocd_cksum_types == 0)) {
209 CERROR("%s: Connect with checksum support but no "
210 "ocd_cksum_types is set\n",
211 exp->exp_obd->obd_name);
215 CDEBUG(D_RPCTRACE, "%s: cli %s supports cksum type %x, return "
216 "%x\n", exp->exp_obd->obd_name, obd_export_nid2str(exp),
217 cksum_types, data->ocd_cksum_types);
219 /* This client does not support OBD_CONNECT_CKSUM
220 * fall back to CRC32 */
221 CDEBUG(D_RPCTRACE, "%s: cli %s does not support "
222 "OBD_CONNECT_CKSUM, CRC32 will be used\n",
223 exp->exp_obd->obd_name, obd_export_nid2str(exp));
226 if (data->ocd_connect_flags & OBD_CONNECT_MAXBYTES)
227 data->ocd_maxbytes = ofd->ofd_dt_conf.ddp_maxbytes;
229 if (OCD_HAS_FLAG(data, PINGLESS)) {
230 if (ptlrpc_pinger_suppress_pings()) {
231 spin_lock(&exp->exp_obd->obd_dev_lock);
232 list_del_init(&exp->exp_obd_chain_timed);
233 spin_unlock(&exp->exp_obd->obd_dev_lock);
235 data->ocd_connect_flags &= ~OBD_CONNECT_PINGLESS;
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;
251 if (exp == NULL || obd == NULL || cluuid == NULL)
254 ofd = ofd_dev(obd->obd_lu_dev);
256 rc = ofd_parse_connect_data(env, exp, data, false);
258 ofd_export_stats_init(ofd, exp, localdata);
263 static int ofd_obd_connect(const struct lu_env *env, struct obd_export **_exp,
264 struct obd_device *obd, struct obd_uuid *cluuid,
265 struct obd_connect_data *data, void *localdata)
267 struct obd_export *exp;
268 struct ofd_device *ofd;
269 struct lustre_handle conn = { 0 };
273 if (_exp == NULL || obd == NULL || cluuid == NULL)
276 ofd = ofd_dev(obd->obd_lu_dev);
278 rc = class_connect(&conn, obd, cluuid);
282 exp = class_conn2export(&conn);
283 LASSERT(exp != NULL);
285 rc = ofd_parse_connect_data(env, exp, data, true);
289 if (obd->obd_replayable) {
290 struct tg_export_data *ted = &exp->exp_target_data;
292 memcpy(ted->ted_lcd->lcd_uuid, cluuid,
293 sizeof(ted->ted_lcd->lcd_uuid));
294 rc = tgt_client_new(env, exp);
297 ofd_export_stats_init(ofd, exp, localdata);
300 CDEBUG(D_HA, "%s: get connection from MDS %d\n", obd->obd_name,
301 data ? data->ocd_group : -1);
305 class_disconnect(exp);
313 int ofd_obd_disconnect(struct obd_export *exp)
315 struct ofd_device *ofd = ofd_exp(exp);
322 class_export_get(exp);
324 if (!(exp->exp_flags & OBD_OPT_FORCE))
325 ofd_grant_sanity_check(ofd_obd(ofd), __FUNCTION__);
327 rc = server_disconnect_export(exp);
329 ofd_grant_discard(exp);
331 /* Do not erase record for recoverable client. */
332 if (exp->exp_obd->obd_replayable &&
333 (!exp->exp_obd->obd_fail || exp->exp_failed)) {
334 rc = lu_env_init(&env, LCT_DT_THREAD);
338 tgt_client_del(&env, exp);
342 class_export_put(exp);
346 static int ofd_init_export(struct obd_export *exp)
350 spin_lock_init(&exp->exp_filter_data.fed_lock);
351 INIT_LIST_HEAD(&exp->exp_filter_data.fed_mod_list);
352 atomic_set(&exp->exp_filter_data.fed_soft_sync_count, 0);
353 spin_lock(&exp->exp_lock);
354 exp->exp_connecting = 1;
355 spin_unlock(&exp->exp_lock);
357 /* self-export doesn't need client data and ldlm initialization */
358 if (unlikely(obd_uuid_equals(&exp->exp_obd->obd_uuid,
359 &exp->exp_client_uuid)))
362 rc = tgt_client_alloc(exp);
364 ldlm_init_export(exp);
366 CERROR("%s: Can't initialize export: rc %d\n",
367 exp->exp_obd->obd_name, rc);
371 static int ofd_destroy_export(struct obd_export *exp)
373 struct ofd_device *ofd = ofd_exp(exp);
375 if (exp->exp_filter_data.fed_pending)
376 CERROR("%s: cli %s/%p has %lu pending on destroyed export"
377 "\n", exp->exp_obd->obd_name, exp->exp_client_uuid.uuid,
378 exp, exp->exp_filter_data.fed_pending);
380 target_destroy_export(exp);
382 if (unlikely(obd_uuid_equals(&exp->exp_obd->obd_uuid,
383 &exp->exp_client_uuid)))
386 ldlm_destroy_export(exp);
387 tgt_client_free(exp);
389 ofd_fmd_cleanup(exp);
392 * discard grants once we're sure no more
393 * interaction with the client is possible
395 ofd_grant_discard(exp);
396 ofd_fmd_cleanup(exp);
398 if (exp_connect_flags(exp) & OBD_CONNECT_GRANT_SHRINK) {
399 if (ofd->ofd_tot_granted_clients > 0)
400 ofd->ofd_tot_granted_clients --;
403 if (!(exp->exp_flags & OBD_OPT_FORCE))
404 ofd_grant_sanity_check(exp->exp_obd, __FUNCTION__);
406 LASSERT(list_empty(&exp->exp_filter_data.fed_mod_list));
410 int ofd_postrecov(const struct lu_env *env, struct ofd_device *ofd)
412 struct lu_device *ldev = &ofd->ofd_dt_dev.dd_lu_dev;
413 struct lfsck_start_param lsp;
416 CDEBUG(D_HA, "%s: recovery is over\n", ofd_name(ofd));
418 lsp.lsp_start = NULL;
419 lsp.lsp_index_valid = 0;
420 rc = lfsck_start(env, ofd->ofd_osd, &lsp);
421 if (rc != 0 && rc != -EALREADY)
422 CWARN("%s: auto trigger paused LFSCK failed: rc = %d\n",
425 return ldev->ld_ops->ldo_recovery_complete(env, ldev);
428 int ofd_obd_postrecov(struct obd_device *obd)
431 struct lu_device *ldev = obd->obd_lu_dev;
436 rc = lu_env_init(&env, LCT_DT_THREAD);
439 ofd_info_init(&env, obd->obd_self_export);
441 rc = ofd_postrecov(&env, ofd_dev(ldev));
447 /* This is not called from request handler, check ofd_set_info_hdl() instead
448 * this OBD functions is only used by class_notify_sptlrpc_conf() locally
449 * by direct obd_set_info_async() call */
450 static int ofd_set_info_async(const struct lu_env *env, struct obd_export *exp,
451 __u32 keylen, void *key, __u32 vallen, void *val,
452 struct ptlrpc_request_set *set)
458 if (exp->exp_obd == NULL) {
459 CDEBUG(D_IOCTL, "invalid export %p\n", exp);
463 if (KEY_IS(KEY_SPTLRPC_CONF)) {
464 rc = tgt_adapt_sptlrpc_conf(class_exp2tgt(exp), 0);
466 CERROR("%s: Unsupported key %s\n",
467 exp->exp_obd->obd_name, (char*)key);
473 /* used by nrs_orr_range_fill_physical() in ptlrpc, see LU-3239 */
474 static int ofd_get_info(const struct lu_env *env, struct obd_export *exp,
475 __u32 keylen, void *key, __u32 *vallen, void *val,
476 struct lov_stripe_md *lsm)
478 struct ofd_thread_info *info;
479 struct ofd_device *ofd;
480 struct ll_fiemap_info_key *fm_key = key;
481 struct ll_user_fiemap *fiemap = val;
486 if (exp->exp_obd == NULL) {
487 CDEBUG(D_IOCTL, "invalid client export %p\n", exp);
493 if (KEY_IS(KEY_FIEMAP)) {
494 info = ofd_info_init(env, exp);
496 rc = ostid_to_fid(&info->fti_fid, &fm_key->oa.o_oi,
497 ofd->ofd_lut.lut_lsd.lsd_osd_index);
501 rc = ofd_fiemap_get(env, ofd, &info->fti_fid, fiemap);
503 CERROR("%s: not supported key %s\n", ofd_name(ofd), (char*)key);
510 /** helper function for statfs, also used by grant code */
511 int ofd_statfs_internal(const struct lu_env *env, struct ofd_device *ofd,
512 struct obd_statfs *osfs, __u64 max_age, int *from_cache)
517 down_read(&ofd->ofd_lastid_rwsem);
518 /* Currently, for safe, we do not distinguish which LAST_ID is broken,
519 * we may do that in the future.
520 * Return -ENOSPC until the LAST_ID rebuilt. */
521 if (unlikely(ofd->ofd_lastid_rebuilding))
522 GOTO(out, rc = -ENOSPC);
524 spin_lock(&ofd->ofd_osfs_lock);
525 if (cfs_time_before_64(ofd->ofd_osfs_age, max_age) || max_age == 0) {
528 /* statfs data are too old, get up-to-date one.
529 * we must be cautious here since multiple threads might be
530 * willing to update statfs data concurrently and we must
531 * grant that cached statfs data are always consistent */
533 if (ofd->ofd_statfs_inflight == 0)
534 /* clear inflight counter if no users, although it would
535 * take a while to overflow this 64-bit counter ... */
536 ofd->ofd_osfs_inflight = 0;
537 /* notify ofd_grant_commit() that we want to track writes
538 * completed as of now */
539 ofd->ofd_statfs_inflight++;
540 /* record value of inflight counter before running statfs to
541 * compute the diff once statfs is completed */
542 unstable = ofd->ofd_osfs_inflight;
543 spin_unlock(&ofd->ofd_osfs_lock);
545 /* statfs can sleep ... hopefully not for too long since we can
546 * call it fairly often as space fills up */
547 rc = dt_statfs(env, ofd->ofd_osd, osfs);
551 spin_lock(&ofd->ofd_grant_lock);
552 spin_lock(&ofd->ofd_osfs_lock);
553 /* calculate how much space was written while we released the
555 unstable = ofd->ofd_osfs_inflight - unstable;
556 ofd->ofd_osfs_unstable = 0;
558 /* some writes completed while we were running statfs
559 * w/o the ofd_osfs_lock. Those ones got added to
560 * the cached statfs data that we are about to crunch.
561 * Take them into account in the new statfs data */
562 osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
563 unstable >> ofd->ofd_blockbits);
564 /* However, we don't really know if those writes got
565 * accounted in the statfs call, so tell
566 * ofd_grant_space_left() there is some uncertainty
567 * on the accounting of those writes.
568 * The purpose is to prevent spurious error messages in
569 * ofd_grant_space_left() since those writes might be
570 * accounted twice. */
571 ofd->ofd_osfs_unstable += unstable;
573 /* similarly, there is some uncertainty on write requests
574 * between prepare & commit */
575 ofd->ofd_osfs_unstable += ofd->ofd_tot_pending;
576 spin_unlock(&ofd->ofd_grant_lock);
578 /* finally udpate cached statfs data */
579 ofd->ofd_osfs = *osfs;
580 ofd->ofd_osfs_age = cfs_time_current_64();
582 ofd->ofd_statfs_inflight--; /* stop tracking */
583 if (ofd->ofd_statfs_inflight == 0)
584 ofd->ofd_osfs_inflight = 0;
585 spin_unlock(&ofd->ofd_osfs_lock);
590 /* use cached statfs data */
591 *osfs = ofd->ofd_osfs;
592 spin_unlock(&ofd->ofd_osfs_lock);
600 up_read(&ofd->ofd_lastid_rwsem);
605 int ofd_statfs(const struct lu_env *env, struct obd_export *exp,
606 struct obd_statfs *osfs, __u64 max_age, __u32 flags)
608 struct obd_device *obd = class_exp2obd(exp);
609 struct ofd_device *ofd = ofd_exp(exp);
614 rc = ofd_statfs_internal(env, ofd, osfs, max_age, NULL);
618 /* at least try to account for cached pages. its still racy and
619 * might be under-reporting if clients haven't announced their
620 * caches with brw recently */
622 CDEBUG(D_SUPER | D_CACHE, "blocks cached "LPU64" granted "LPU64
623 " pending "LPU64" free "LPU64" avail "LPU64"\n",
624 ofd->ofd_tot_dirty, ofd->ofd_tot_granted, ofd->ofd_tot_pending,
625 osfs->os_bfree << ofd->ofd_blockbits,
626 osfs->os_bavail << ofd->ofd_blockbits);
628 osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
629 ((ofd->ofd_tot_dirty + ofd->ofd_tot_pending +
630 osfs->os_bsize - 1) >> ofd->ofd_blockbits));
632 /* The QoS code on the MDS does not care about space reserved for
633 * precreate, so take it out. */
634 if (exp_connect_flags(exp) & OBD_CONNECT_MDS) {
635 struct filter_export_data *fed;
637 fed = &obd->obd_self_export->exp_filter_data;
638 osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
639 fed->fed_grant >> ofd->ofd_blockbits);
642 ofd_grant_sanity_check(obd, __FUNCTION__);
643 CDEBUG(D_CACHE, LPU64" blocks: "LPU64" free, "LPU64" avail; "
644 LPU64" objects: "LPU64" free; state %x\n",
645 osfs->os_blocks, osfs->os_bfree, osfs->os_bavail,
646 osfs->os_files, osfs->os_ffree, osfs->os_state);
648 if (OBD_FAIL_CHECK_VALUE(OBD_FAIL_OST_ENOINO,
649 ofd->ofd_lut.lut_lsd.lsd_osd_index))
652 /* OS_STATE_READONLY can be set by OSD already */
653 if (ofd->ofd_raid_degraded)
654 osfs->os_state |= OS_STATE_DEGRADED;
656 if (obd->obd_self_export != exp && ofd_grant_compat(exp, ofd)) {
657 /* clients which don't support OBD_CONNECT_GRANT_PARAM
658 * should not see a block size > page size, otherwise
659 * cl_lost_grant goes mad. Therefore, we emulate a 4KB (=2^12)
660 * block size which is the biggest block size known to work
661 * with all client's page size. */
662 osfs->os_blocks <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
663 osfs->os_bfree <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
664 osfs->os_bavail <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
665 osfs->os_bsize = 1 << COMPAT_BSIZE_SHIFT;
668 if (OBD_FAIL_CHECK_VALUE(OBD_FAIL_OST_ENOSPC,
669 ofd->ofd_lut.lut_lsd.lsd_osd_index))
670 osfs->os_bfree = osfs->os_bavail = 2;
677 /* needed by echo client only for now, RPC handler uses ofd_setattr_hdl() */
678 int ofd_echo_setattr(const struct lu_env *env, struct obd_export *exp,
679 struct obd_info *oinfo, struct obd_trans_info *oti)
681 struct ofd_thread_info *info;
682 struct ofd_device *ofd = ofd_exp(exp);
683 struct ldlm_namespace *ns = ofd->ofd_namespace;
684 struct ldlm_resource *res;
685 struct ofd_object *fo;
686 struct obdo *oa = oinfo->oi_oa;
687 struct lu_fid *fid = &oa->o_oi.oi_fid;
688 struct filter_fid *ff = NULL;
693 info = ofd_info_init(env, exp);
695 ost_fid_build_resid(fid, &info->fti_resid);
697 /* This would be very bad - accidentally truncating a file when
698 * changing the time or similar - bug 12203. */
699 if (oa->o_valid & OBD_MD_FLSIZE &&
700 oinfo->oi_policy.l_extent.end != OBD_OBJECT_EOF) {
701 static char mdsinum[48];
703 if (oa->o_valid & OBD_MD_FLFID)
704 snprintf(mdsinum, sizeof(mdsinum) - 1,
705 "of parent "DFID, oa->o_parent_seq,
706 oa->o_parent_oid, 0);
710 CERROR("%s: setattr from %s trying to truncate object "DFID
711 " %s\n", ofd_name(ofd), obd_export_nid2str(exp),
713 GOTO(out, rc = -EPERM);
716 fo = ofd_object_find_exists(env, ofd, fid);
718 CERROR("%s: can't find object "DFID"\n",
719 ofd_name(ofd), PFID(fid));
720 GOTO(out, rc = PTR_ERR(fo));
723 la_from_obdo(&info->fti_attr, oa, oa->o_valid);
724 info->fti_attr.la_valid &= ~LA_TYPE;
726 if (oa->o_valid & OBD_MD_FLFID) {
727 ff = &info->fti_mds_fid;
728 ofd_prepare_fidea(ff, oa);
731 /* setting objects attributes (including owner/group) */
732 rc = ofd_attr_set(env, fo, &info->fti_attr, ff);
734 GOTO(out_unlock, rc);
736 ofd_counter_incr(exp, LPROC_OFD_STATS_SETATTR, NULL, 1);
739 ofd_object_put(env, fo);
742 /* we do not call this before to avoid lu_object_find() in
743 * ->lvbo_update() holding another reference on the object.
744 * otherwise concurrent destroy can make the object unavailable
745 * for 2nd lu_object_find() waiting for the first reference
746 * to go... deadlock! */
747 res = ldlm_resource_get(ns, NULL, &info->fti_resid, LDLM_EXTENT, 0);
749 ldlm_res_lvbo_update(res, NULL, 0);
750 ldlm_resource_putref(res);
757 int ofd_destroy_by_fid(const struct lu_env *env, struct ofd_device *ofd,
758 const struct lu_fid *fid, int orphan)
760 struct ofd_thread_info *info = ofd_info(env);
761 struct lustre_handle lockh;
762 __u64 flags = LDLM_FL_AST_DISCARD_DATA;
764 ldlm_policy_data_t policy = {
765 .l_extent = { 0, OBD_OBJECT_EOF }
767 struct ofd_object *fo;
771 fo = ofd_object_find_exists(env, ofd, fid);
775 /* Tell the clients that the object is gone now and that they should
776 * throw away any cached pages. */
777 ost_fid_build_resid(fid, &info->fti_resid);
778 rc = ldlm_cli_enqueue_local(ofd->ofd_namespace, &info->fti_resid,
779 LDLM_EXTENT, &policy, LCK_PW, &flags,
780 ldlm_blocking_ast, ldlm_completion_ast,
781 NULL, NULL, 0, LVB_T_NONE, NULL, &lockh);
783 /* We only care about the side-effects, just drop the lock. */
785 ldlm_lock_decref(&lockh, LCK_PW);
789 rc = ofd_object_destroy(env, fo, orphan);
792 ofd_object_put(env, fo);
796 /* needed by echo client only for now, RPC handler uses ofd_destroy_hdl() */
797 int ofd_echo_destroy(const struct lu_env *env, struct obd_export *exp,
798 struct obdo *oa, struct lov_stripe_md *md,
799 struct obd_trans_info *oti, struct obd_export *md_exp,
802 struct ofd_device *ofd = ofd_exp(exp);
803 struct lu_fid *fid = &oa->o_oi.oi_fid;
808 ofd_info_init(env, exp);
810 CDEBUG(D_HA, "%s: Destroy object "DFID"\n", ofd_name(ofd), PFID(fid));
812 rc = ofd_destroy_by_fid(env, ofd, fid, 0);
814 CDEBUG(D_INODE, "%s: destroying non-existent object "DFID"\n",
815 ofd_name(ofd), PFID(fid));
817 } else if (rc != 0) {
818 CERROR("%s: error destroying object "DFID": %d\n",
819 ofd_name(ofd), PFID(fid), rc);
827 /* needed by echo client only for now, RPC handler uses ofd_create_hdl()
828 * It is much simpler and just create objects */
829 int ofd_echo_create(const struct lu_env *env, struct obd_export *exp,
830 struct obdo *oa, struct lov_stripe_md **ea,
831 struct obd_trans_info *oti)
833 struct ofd_device *ofd = ofd_exp(exp);
834 struct ofd_thread_info *info;
835 obd_seq seq = ostid_seq(&oa->o_oi);
836 struct ofd_seq *oseq;
837 int rc = 0, diff = 1;
843 info = ofd_info_init(env, exp);
845 LASSERT(seq == FID_SEQ_ECHO);
846 LASSERT(oa->o_valid & OBD_MD_FLGROUP);
848 CDEBUG(D_INFO, "ofd_create("DOSTID")\n", POSTID(&oa->o_oi));
850 down_read(&ofd->ofd_lastid_rwsem);
851 /* Currently, for safe, we do not distinguish which LAST_ID is broken,
852 * we may do that in the future.
853 * Return -ENOSPC until the LAST_ID rebuilt. */
854 if (unlikely(ofd->ofd_lastid_rebuilding))
855 GOTO(out_sem, rc = -ENOSPC);
857 oseq = ofd_seq_load(env, ofd, seq);
859 CERROR("%s: Can't find FID Sequence "LPX64": rc = %ld\n",
860 ofd_name(ofd), seq, PTR_ERR(oseq));
861 GOTO(out_sem, rc = -EINVAL);
864 mutex_lock(&oseq->os_create_lock);
865 rc = ofd_grant_create(env, ofd_obd(ofd)->obd_self_export, &diff);
867 CDEBUG(D_HA, "%s: failed to acquire grant space for "
868 "precreate (%d): rc = %d\n", ofd_name(ofd), diff, rc);
873 next_id = ofd_seq_last_oid(oseq) + 1;
874 count = ofd_precreate_batch(ofd, diff);
876 rc = ofd_precreate_objects(env, ofd, next_id, oseq, count, 0);
878 CERROR("%s: unable to precreate: rc = %d\n",
881 ostid_set_id(&oa->o_oi, ofd_seq_last_oid(oseq));
882 oa->o_valid |= OBD_MD_FLID | OBD_MD_FLGROUP;
886 ofd_grant_commit(env, ofd_obd(ofd)->obd_self_export, rc);
888 mutex_unlock(&oseq->os_create_lock);
889 if (rc == 0 && ea != NULL) {
890 struct lov_stripe_md *lsm = *ea;
892 lsm->lsm_oi = oa->o_oi;
894 ofd_seq_put(env, oseq);
897 up_read(&ofd->ofd_lastid_rwsem);
901 /* needed by echo client only for now, RPC handler uses ofd_getattr_hdl() */
902 int ofd_echo_getattr(const struct lu_env *env, struct obd_export *exp,
903 struct obd_info *oinfo)
905 struct ofd_device *ofd = ofd_exp(exp);
906 struct ofd_thread_info *info;
907 struct lu_fid *fid = &oinfo->oi_oa->o_oi.oi_fid;
908 struct ofd_object *fo;
913 info = ofd_info_init(env, exp);
915 fo = ofd_object_find_exists(env, ofd, fid);
917 GOTO(out, rc = PTR_ERR(fo));
920 rc = ofd_attr_get(env, fo, &info->fti_attr);
921 oinfo->oi_oa->o_valid = OBD_MD_FLID;
925 obdo_from_la(oinfo->oi_oa, &info->fti_attr,
926 OFD_VALID_FLAGS | LA_UID | LA_GID);
928 /* Store object version in reply */
929 curr_version = dt_version_get(env, ofd_object_child(fo));
930 if ((__s64)curr_version != -EOPNOTSUPP) {
931 oinfo->oi_oa->o_valid |= OBD_MD_FLDATAVERSION;
932 oinfo->oi_oa->o_data_version = curr_version;
936 ofd_object_put(env, fo);
941 static int ofd_ioc_get_obj_version(const struct lu_env *env,
942 struct ofd_device *ofd, void *karg)
944 struct obd_ioctl_data *data = karg;
946 struct ofd_object *fo;
947 dt_obj_version_t version;
952 if (data->ioc_inlbuf2 == NULL || data->ioc_inllen2 != sizeof(version))
953 GOTO(out, rc = -EINVAL);
955 if (data->ioc_inlbuf1 != NULL && data->ioc_inllen1 == sizeof(fid)) {
956 fid = *(struct lu_fid *)data->ioc_inlbuf1;
957 } else if (data->ioc_inlbuf3 != NULL &&
958 data->ioc_inllen3 == sizeof(__u64) &&
959 data->ioc_inlbuf4 != NULL &&
960 data->ioc_inllen4 == sizeof(__u64)) {
963 ostid_set_seq(&ostid, *(__u64 *)data->ioc_inlbuf4);
964 ostid_set_id(&ostid, *(__u64 *)data->ioc_inlbuf3);
965 rc = ostid_to_fid(&fid, &ostid,
966 ofd->ofd_lut.lut_lsd.lsd_osd_index);
970 GOTO(out, rc = -EINVAL);
973 if (!fid_is_sane(&fid))
974 GOTO(out, rc = -EINVAL);
976 fo = ofd_object_find(env, ofd, &fid);
978 GOTO(out, rc = PTR_ERR(fo));
980 if (!ofd_object_exists(fo))
981 GOTO(out_fo, rc = -ENOENT);
983 if (lu_object_remote(&fo->ofo_obj.do_lu))
984 GOTO(out_fo, rc = -EREMOTE);
986 version = dt_version_get(env, ofd_object_child(fo));
988 GOTO(out_fo, rc = -EIO);
990 *(dt_obj_version_t *)data->ioc_inlbuf2 = version;
994 ofd_object_put(env, fo);
999 int ofd_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
1000 void *karg, void *uarg)
1003 struct ofd_device *ofd = ofd_exp(exp);
1004 struct obd_device *obd = ofd_obd(ofd);
1009 CDEBUG(D_IOCTL, "handling ioctl cmd %#x\n", cmd);
1010 rc = lu_env_init(&env, LCT_DT_THREAD);
1015 case OBD_IOC_ABORT_RECOVERY:
1016 CERROR("%s: aborting recovery\n", obd->obd_name);
1017 target_stop_recovery_thread(obd);
1020 CDEBUG(D_RPCTRACE, "syncing ost %s\n", obd->obd_name);
1021 rc = dt_sync(&env, ofd->ofd_osd);
1023 case OBD_IOC_SET_READONLY:
1024 rc = dt_sync(&env, ofd->ofd_osd);
1026 rc = dt_ro(&env, ofd->ofd_osd);
1028 case OBD_IOC_START_LFSCK: {
1029 struct obd_ioctl_data *data = karg;
1030 struct lfsck_start_param lsp;
1032 if (unlikely(data == NULL)) {
1037 lsp.lsp_start = (struct lfsck_start *)(data->ioc_inlbuf1);
1038 lsp.lsp_index_valid = 0;
1039 rc = lfsck_start(&env, ofd->ofd_osd, &lsp);
1042 case OBD_IOC_STOP_LFSCK: {
1043 struct obd_ioctl_data *data = karg;
1044 struct lfsck_stop stop;
1046 stop.ls_status = LS_STOPPED;
1047 /* Old lfsck utils may pass NULL @stop. */
1048 if (data->ioc_inlbuf1 == NULL)
1052 ((struct lfsck_stop *)(data->ioc_inlbuf1))->ls_flags;
1054 rc = lfsck_stop(&env, ofd->ofd_osd, &stop);
1057 case OBD_IOC_GET_OBJ_VERSION:
1058 rc = ofd_ioc_get_obj_version(&env, ofd, karg);
1061 CERROR("%s: not supported cmd = %d\n", obd->obd_name, cmd);
1069 static int ofd_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
1076 case OBD_CLEANUP_EARLY:
1078 case OBD_CLEANUP_EXPORTS:
1079 target_cleanup_recovery(obd);
1085 static int ofd_ping(const struct lu_env *env, struct obd_export *exp)
1087 ofd_fmd_expire(exp);
1091 static int ofd_health_check(const struct lu_env *nul, struct obd_device *obd)
1093 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
1094 struct ofd_thread_info *info;
1096 #ifdef USE_HEALTH_CHECK_WRITE
1101 /* obd_proc_read_health pass NULL env, we need real one */
1102 rc = lu_env_init(&env, LCT_DT_THREAD);
1106 info = ofd_info_init(&env, NULL);
1107 rc = dt_statfs(&env, ofd->ofd_osd, &info->fti_u.osfs);
1111 if (info->fti_u.osfs.os_state == OS_STATE_READONLY)
1112 GOTO(out, rc = -EROFS);
1114 #ifdef USE_HEALTH_CHECK_WRITE
1115 OBD_ALLOC(info->fti_buf.lb_buf, PAGE_CACHE_SIZE);
1116 if (info->fti_buf.lb_buf == NULL)
1117 GOTO(out, rc = -ENOMEM);
1119 info->fti_buf.lb_len = PAGE_CACHE_SIZE;
1122 th = dt_trans_create(&env, ofd->ofd_osd);
1124 GOTO(out, rc = PTR_ERR(th));
1126 rc = dt_declare_record_write(&env, ofd->ofd_health_check_file,
1127 &info->fti_buf, info->fti_off, th);
1129 th->th_sync = 1; /* sync IO is needed */
1130 rc = dt_trans_start_local(&env, ofd->ofd_osd, th);
1132 rc = dt_record_write(&env, ofd->ofd_health_check_file,
1133 &info->fti_buf, &info->fti_off,
1136 dt_trans_stop(&env, ofd->ofd_osd, th);
1138 OBD_FREE(info->fti_buf.lb_buf, PAGE_CACHE_SIZE);
1140 CDEBUG(D_INFO, "write 1 page synchronously for checking io rc %d\n",rc);
1148 * Handle quota control requests to consult current usage/limit.
1150 * \param obd - is the obd device associated with the ofd
1151 * \param exp - is the client's export
1152 * \param oqctl - is the obd_quotactl request to be processed
1154 static int ofd_quotactl(struct obd_device *obd, struct obd_export *exp,
1155 struct obd_quotactl *oqctl)
1157 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
1162 /* report success for quota on/off for interoperability with current MDT
1164 if (oqctl->qc_cmd == Q_QUOTAON || oqctl->qc_cmd == Q_QUOTAOFF)
1167 rc = lu_env_init(&env, LCT_DT_THREAD);
1171 rc = lquotactl_slv(&env, ofd->ofd_osd, oqctl);
1177 struct obd_ops ofd_obd_ops = {
1178 .o_owner = THIS_MODULE,
1179 .o_connect = ofd_obd_connect,
1180 .o_reconnect = ofd_obd_reconnect,
1181 .o_disconnect = ofd_obd_disconnect,
1182 .o_create = ofd_echo_create,
1183 .o_statfs = ofd_statfs,
1184 .o_setattr = ofd_echo_setattr,
1185 .o_preprw = ofd_preprw,
1186 .o_commitrw = ofd_commitrw,
1187 .o_destroy = ofd_echo_destroy,
1188 .o_init_export = ofd_init_export,
1189 .o_destroy_export = ofd_destroy_export,
1190 .o_postrecov = ofd_obd_postrecov,
1191 .o_getattr = ofd_echo_getattr,
1192 .o_iocontrol = ofd_iocontrol,
1193 .o_precleanup = ofd_precleanup,
1195 .o_health_check = ofd_health_check,
1196 .o_quotactl = ofd_quotactl,
1197 .o_set_info_async = ofd_set_info_async,
1198 .o_get_info = ofd_get_info,