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.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2012, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
33 * This file provides functions to handle IO requests from clients and
34 * also LFSCK routines to check parent file identifier (PFID) consistency.
36 * Author: Alexey Zhuravlev <alexey.zhuravlev@intel.com>
37 * Author: Fan Yong <fan.yong@intel.com>
40 #define DEBUG_SUBSYSTEM S_FILTER
42 #include <linux/kthread.h>
43 #include "ofd_internal.h"
44 #include <lustre_nodemap.h>
46 struct ofd_inconsistency_item {
47 struct list_head oii_list;
48 struct ofd_object *oii_obj;
49 struct filter_fid oii_ff;
53 * Verify single object for parent FID consistency.
55 * Part of LFSCK processing which checks single object PFID stored in extended
56 * attribute (XATTR) against real FID of MDT parent object received by LFSCK.
57 * This verifies that the OST object is being referenced by only a single MDT
60 * \param[in] env execution environment
61 * \param[in] ofd OFD device
62 * \param[in] oii object-related local data
63 * \param[in] lrl LFSCK request data
65 static void ofd_inconsistency_verify_one(const struct lu_env *env,
66 struct ofd_device *ofd,
67 struct ofd_inconsistency_item *oii,
68 struct lfsck_req_local *lrl)
70 struct ofd_object *fo = oii->oii_obj;
71 struct filter_fid *client_ff = &oii->oii_ff;
72 struct filter_fid *local_ff = &fo->ofo_ff;
75 LASSERT(fo->ofo_pfid_checking);
76 LASSERT(!fo->ofo_pfid_verified);
78 lrl->lrl_fid = fo->ofo_header.loh_fid; /* OST-object itself FID. */
79 lrl->lrl_ff_client = *client_ff; /* client given PFID. */
80 lrl->lrl_ff_local = *local_ff; /* OST local stored PFID. */
82 rc = lfsck_in_notify_local(env, ofd->ofd_osd, lrl, NULL);
83 ofd_write_lock(env, fo);
84 switch (lrl->lrl_status) {
89 CDEBUG(D_LFSCK, "%s: fail to verify OST local stored "
90 "PFID xattr for "DFID", the client given PFID "
91 DFID", OST local stored PFID "DFID": rc = %d\n",
92 ofd_name(ofd), PFID(&fo->ofo_header.loh_fid),
93 PFID(&client_ff->ff_parent),
94 PFID(&local_ff->ff_parent), rc);
96 fo->ofo_pfid_verified = 1;
98 case LPVS_INCONSISTENT:
101 ofd->ofd_inconsistency_self_detected++;
103 CDEBUG(D_LFSCK, "%s: fail to verify the client given "
104 "PFID for "DFID", the client given PFID "DFID
105 ", local stored PFID "DFID": rc = %d\n",
106 ofd_name(ofd), PFID(&fo->ofo_header.loh_fid),
107 PFID(&client_ff->ff_parent),
108 PFID(&local_ff->ff_parent), rc);
110 CDEBUG(D_LFSCK, "%s: both the client given PFID and "
111 "the OST local stored PFID are stale for the "
112 "OST-object "DFID", client given PFID is "DFID
113 ", local stored PFID is "DFID"\n",
114 ofd_name(ofd), PFID(&fo->ofo_header.loh_fid),
115 PFID(&client_ff->ff_parent),
116 PFID(&local_ff->ff_parent));
118 case LPVS_INCONSISTENT_TOFIX:
119 ofd->ofd_inconsistency_self_detected++;
121 ofd->ofd_inconsistency_self_repaired++;
122 CDEBUG(D_LFSCK, "%s: fixed the staled OST PFID xattr "
123 "for "DFID", with the client given PFID "DFID
124 ", the old stored PFID "DFID"\n",
125 ofd_name(ofd), PFID(&fo->ofo_header.loh_fid),
126 PFID(&client_ff->ff_parent),
127 PFID(&local_ff->ff_parent));
129 CDEBUG(D_LFSCK, "%s: fail to fix the OST PFID xattr "
130 "for "DFID", client given PFID "DFID", local "
131 "stored PFID "DFID": rc = %d\n",
132 ofd_name(ofd), PFID(&fo->ofo_header.loh_fid),
133 PFID(&client_ff->ff_parent),
134 PFID(&local_ff->ff_parent), rc);
136 local_ff->ff_parent = client_ff->ff_parent;
137 fo->ofo_pfid_verified = 1;
142 fo->ofo_pfid_checking = 0;
143 ofd_write_unlock(env, fo);
145 ofd_object_put(env, fo);
150 struct ofd_device *od_ofd;
151 struct lu_env od_env;
152 struct lfsck_req_local od_lrl;
153 struct completion *od_started;
157 #define TASK_IDLE TASK_INTERRUPTIBLE
161 * Verification thread to check parent FID consistency.
163 * Kernel thread to check consistency of parent FID for any
164 * new item added for checking by ofd_add_inconsistency_item().
166 * \param[in] args OFD device
168 * \retval 0 on successful thread termination
169 * \retval negative value if thread can't start
171 static int ofd_inconsistency_verification_main(void *_args)
173 struct oivm_args *args = _args;
174 struct lu_env *env = &args->od_env;
175 struct ofd_device *ofd = args->od_ofd;
176 struct ofd_inconsistency_item *oii;
177 struct lfsck_req_local *lrl = &args->od_lrl;
180 lrl->lrl_event = LEL_PAIRS_VERIFY_LOCAL;
181 lrl->lrl_active = LFSCK_TYPE_LAYOUT;
182 complete(args->od_started);
184 spin_lock(&ofd->ofd_inconsistency_lock);
185 while (({set_current_state(TASK_IDLE);
186 !kthread_should_stop(); })) {
188 while (!list_empty(&ofd->ofd_inconsistency_list)) {
189 __set_current_state(TASK_RUNNING);
190 oii = list_entry(ofd->ofd_inconsistency_list.next,
191 struct ofd_inconsistency_item,
193 list_del_init(&oii->oii_list);
194 spin_unlock(&ofd->ofd_inconsistency_lock);
195 ofd_inconsistency_verify_one(env, ofd, oii, lrl);
196 spin_lock(&ofd->ofd_inconsistency_lock);
199 spin_unlock(&ofd->ofd_inconsistency_lock);
201 spin_lock(&ofd->ofd_inconsistency_lock);
203 __set_current_state(TASK_RUNNING);
205 while (!list_empty(&ofd->ofd_inconsistency_list)) {
206 struct ofd_object *fo;
208 oii = list_entry(ofd->ofd_inconsistency_list.next,
209 struct ofd_inconsistency_item,
211 list_del_init(&oii->oii_list);
213 spin_unlock(&ofd->ofd_inconsistency_lock);
215 ofd_write_lock(env, fo);
216 fo->ofo_pfid_checking = 0;
217 ofd_write_unlock(env, fo);
219 ofd_object_put(env, fo);
221 spin_lock(&ofd->ofd_inconsistency_lock);
224 spin_unlock(&ofd->ofd_inconsistency_lock);
226 lu_env_fini(&args->od_env);
232 * Start parent FID verification thread.
234 * See ofd_inconsistency_verification_main().
236 * \param[in] ofd OFD device
238 * \retval 0 on successful start of thread
239 * \retval negative value on error
241 int ofd_start_inconsistency_verification_thread(struct ofd_device *ofd)
243 struct task_struct *task;
244 struct oivm_args *args;
245 DECLARE_COMPLETION_ONSTACK(started);
248 if (ofd->ofd_inconsistency_task)
254 rc = lu_env_init(&args->od_env, LCT_DT_THREAD);
261 args->od_started = &started;
262 task = kthread_create(ofd_inconsistency_verification_main, args,
263 "inconsistency_verification");
266 CERROR("%s: cannot start self_repair thread: rc = %d\n",
270 spin_lock(&ofd->ofd_inconsistency_lock);
271 if (ofd->ofd_inconsistency_task)
274 ofd->ofd_inconsistency_task = task;
275 spin_unlock(&ofd->ofd_inconsistency_lock);
280 wake_up_process(task);
281 wait_for_completion(&started);
285 lu_env_fini(&args->od_env);
293 * Stop parent FID verification thread.
295 * \param[in] ofd OFD device
297 * \retval 0 on successful start of thread
298 * \retval -EALREADY if thread is already stopped
300 int ofd_stop_inconsistency_verification_thread(struct ofd_device *ofd)
302 struct task_struct *task;
304 spin_lock(&ofd->ofd_inconsistency_lock);
305 task = ofd->ofd_inconsistency_task;
306 ofd->ofd_inconsistency_task = NULL;
307 spin_unlock(&ofd->ofd_inconsistency_lock);
317 * Add new item for parent FID verification.
319 * Prepare new verification item and pass it to the dedicated
320 * verification thread for further processing.
322 * \param[in] env execution environment
323 * \param[in] fo OFD object
324 * \param[in] oa OBDO structure with PFID
326 static void ofd_add_inconsistency_item(const struct lu_env *env,
327 struct ofd_object *fo, struct obdo *oa)
329 struct ofd_device *ofd = ofd_obj2dev(fo);
330 struct ofd_inconsistency_item *oii;
331 struct filter_fid *ff;
338 INIT_LIST_HEAD(&oii->oii_list);
339 lu_object_get(&fo->ofo_obj.do_lu);
342 ff->ff_parent.f_seq = oa->o_parent_seq;
343 ff->ff_parent.f_oid = oa->o_parent_oid;
344 ff->ff_parent.f_stripe_idx = oa->o_stripe_idx;
345 ff->ff_layout = oa->o_layout;
347 spin_lock(&ofd->ofd_inconsistency_lock);
348 if (fo->ofo_pfid_checking || fo->ofo_pfid_verified) {
349 spin_unlock(&ofd->ofd_inconsistency_lock);
355 fo->ofo_pfid_checking = 1;
356 if (list_empty(&ofd->ofd_inconsistency_list))
358 list_add_tail(&oii->oii_list, &ofd->ofd_inconsistency_list);
359 if (wakeup && ofd->ofd_inconsistency_task)
360 wake_up_process(ofd->ofd_inconsistency_task);
361 spin_unlock(&ofd->ofd_inconsistency_lock);
363 /* XXX: When the found inconsistency exceeds some threshold,
364 * we can trigger the LFSCK to scan part of the system
365 * or the whole system, which depends on how to define
366 * the threshold, a simple way maybe like that: define
367 * the absolute value of how many inconsisteny allowed
368 * to be repaired via self detect/repair mechanism, if
369 * exceeded, then trigger the LFSCK to scan the layout
370 * inconsistency within the whole system. */
374 * Verify parent FID of an object.
376 * Check the parent FID is sane and start extended
377 * verification procedure otherwise.
379 * \param[in] env execution environment
380 * \param[in] fo OFD object
381 * \param[in] oa OBDO structure with PFID
383 * \retval 0 on successful verification
384 * \retval -EINPROGRESS if PFID is being repaired
385 * \retval -EPERM if PFID was verified but still insane
387 int ofd_verify_ff(const struct lu_env *env, struct ofd_object *fo,
390 struct lu_fid *pfid = &fo->ofo_ff.ff_parent;
394 if (fid_is_sane(pfid)) {
395 if (likely(oa->o_parent_seq == pfid->f_seq &&
396 oa->o_parent_oid == pfid->f_oid &&
397 oa->o_stripe_idx == pfid->f_stripe_idx))
400 if (fo->ofo_pfid_verified)
404 /* The OST-object may be inconsistent, and we need further verification.
405 * To avoid block the RPC service thread, return -EINPROGRESS to client
406 * and make it retry later. */
407 if (fo->ofo_pfid_checking)
408 RETURN(-EINPROGRESS);
410 rc = ofd_object_ff_load(env, fo);
417 if (likely(oa->o_parent_seq == pfid->f_seq &&
418 oa->o_parent_oid == pfid->f_oid &&
419 oa->o_stripe_idx == pfid->f_stripe_idx))
422 /* Push it to the dedicated thread for further verification. */
423 ofd_add_inconsistency_item(env, fo, oa);
425 RETURN(-EINPROGRESS);
429 * FLR: verify the layout version of object.
431 * \param[in] env execution environment
432 * \param[in] fo OFD object
433 * \param[in] oa OBDO structure with layout version
435 * \retval 0 on successful verification
436 * \retval -EINPROGRESS layout version is in transfer
437 * \retval -ESTALE the layout version on client is stale
439 int ofd_verify_layout_version(const struct lu_env *env,
440 struct ofd_object *fo, const struct obdo *oa)
445 if (unlikely(OBD_FAIL_CHECK(OBD_FAIL_OST_SKIP_LV_CHECK)))
448 rc = ofd_object_ff_load(env, fo);
456 * this update is not legitimate, whose layout version is older than
459 if (ofd_layout_version_less(oa->o_layout_version,
460 fo->ofo_ff.ff_layout_version))
461 GOTO(out, rc = -ESTALE);
464 CDEBUG(D_INODE, DFID " verify layout version: %u vs. %u/%u: rc = %d\n",
465 PFID(lu_object_fid(&fo->ofo_obj.do_lu)),
466 oa->o_layout_version, fo->ofo_ff.ff_layout_version,
467 fo->ofo_ff.ff_range, rc);
473 * Handle multiple attrs at once:
475 * Lazy ATIME update to refresh atime every ofd_atime_diff
476 * seconds so that external scanning tool can see it actual
477 * within that period and be able to identify accessed files
479 * Update enc flag on OST object
480 * OSD layer will find out if this is really necessary.
482 static void ofd_handle_attrs(const struct lu_env *env, struct ofd_device *ofd,
483 struct ofd_object *fo, struct obdo *oa)
485 bool need_atime = (oa->o_valid & OBD_MD_FLATIME);
486 bool need_encfl = (oa->o_valid & OBD_MD_FLFLAGS &&
487 oa->o_flags & LUSTRE_ENCRYPT_FL);
493 if (need_atime && ofd->ofd_atime_diff == 0)
496 if (need_encfl && OBD_FAIL_CHECK(OBD_FAIL_LFSCK_NO_ENCFLAG))
499 if (!need_atime && !need_encfl)
502 la = &ofd_info(env)->fti_attr2;
503 o = ofd_object_child(fo);
506 if (unlikely(fo->ofo_atime_ondisk == 0)) {
507 rc = dt_attr_get(env, o, la);
512 LASSERT(la->la_valid & LA_ATIME);
513 if (la->la_atime == 0)
514 la->la_atime = la->la_mtime;
515 fo->ofo_atime_ondisk = la->la_atime;
517 if (oa->o_atime - fo->ofo_atime_ondisk < ofd->ofd_atime_diff) {
522 /* atime hasn't been updated too long, update it */
523 fo->ofo_atime_ondisk = oa->o_atime;
527 if (!need_atime && !need_encfl)
530 th = ofd_trans_create(env, ofd);
532 CERROR("%s: cannot create transaction: rc = %d\n",
533 ofd_name(ofd), (int)PTR_ERR(th));
539 la->la_valid |= LA_ATIME;
540 la->la_atime = fo->ofo_atime_ondisk;
543 la->la_valid |= LA_FLAGS;
544 la->la_flags = LUSTRE_ENCRYPT_FL;
547 rc = dt_declare_attr_set(env, o, la, th);
551 rc = dt_trans_start_local(env, ofd->ofd_osd , th);
553 CERROR("%s: cannot start transaction: rc = %d\n",
558 ofd_read_lock(env, fo);
559 if (ofd_object_exists(fo))
560 rc = dt_attr_set(env, o, la, th);
561 ofd_read_unlock(env, fo);
564 ofd_trans_stop(env, ofd, th, rc);
568 * Prepare buffers for read request processing.
570 * This function converts remote buffers from client to local buffers
571 * and prepares the latter.
573 * \param[in] env execution environment
574 * \param[in] exp OBD export of client
575 * \param[in] ofd OFD device
576 * \param[in] fid FID of object
577 * \param[in] la object attributes
578 * \param[in] oa OBDO structure from client
579 * \param[in] niocount number of remote buffers
580 * \param[in] rnb remote buffers
581 * \param[in] nr_local number of local buffers
582 * \param[in] lnb local buffers
583 * \param[in] jobid job ID name
585 * \retval 0 on successful prepare
586 * \retval negative value on error
588 static int ofd_preprw_read(const struct lu_env *env, struct obd_export *exp,
589 struct ofd_device *ofd, const struct lu_fid *fid,
590 struct lu_attr *la, struct obdo *oa, int niocount,
591 struct niobuf_remote *rnb, int *nr_local,
592 struct niobuf_local *lnb)
594 struct ofd_object *fo;
595 int i, j, rc, tot_bytes = 0;
596 enum dt_bufs_type dbt = DT_BUFS_TYPE_READ;
597 int maxlnb = *nr_local;
601 LASSERT(env != NULL);
603 fo = ofd_object_find(env, ofd, fid);
608 ofd_info(env)->fti_obj = fo;
610 ofd_handle_attrs(env, ofd, fo, oa);
612 if (!ofd_object_exists(fo))
613 GOTO(obj_put, rc = -ENOENT);
615 if (ptlrpc_connection_is_local(exp->exp_connection))
616 dbt |= DT_BUFS_TYPE_LOCAL;
621 for (*nr_local = 0, i = 0, j = 0; i < niocount; i++) {
622 begin = min_t(__u64, begin, rnb[i].rnb_offset);
623 end = max_t(__u64, end, rnb[i].rnb_offset + rnb[i].rnb_len);
625 if (OBD_FAIL_CHECK(OBD_FAIL_OST_2BIG_NIOBUF))
626 rnb[i].rnb_len = 100 * 1024 * 1024;
628 rc = dt_bufs_get(env, ofd_object_child(fo), rnb + i,
629 lnb + j, maxlnb, dbt);
630 if (unlikely(rc < 0))
632 LASSERT(rc <= PTLRPC_MAX_BRW_PAGES);
633 /* correct index for local buffers to continue with */
637 LASSERT(j <= PTLRPC_MAX_BRW_PAGES);
638 tot_bytes += rnb[i].rnb_len;
641 ofd_read_lock(env, fo);
642 if (!ofd_object_exists(fo))
643 GOTO(unlock, rc = -ENOENT);
645 if (ofd->ofd_lfsck_verify_pfid && oa->o_valid & OBD_MD_FLFID) {
646 rc = ofd_verify_ff(env, fo, oa);
651 LASSERT(*nr_local > 0 && *nr_local <= PTLRPC_MAX_BRW_PAGES);
652 rc = dt_read_prep(env, ofd_object_child(fo), lnb, *nr_local);
655 ofd_read_unlock(env, fo);
659 .f_seq = oa->o_parent_seq,
660 .f_oid = oa->o_parent_oid,
661 .f_ver = oa->o_stripe_idx,
671 ofd_read_unlock(env, fo);
673 dt_bufs_put(env, ofd_object_child(fo), lnb, *nr_local);
675 ofd_object_put(env, fo);
680 * Prepare buffers for write request processing.
682 * This function converts remote buffers from client to local buffers
683 * and prepares the latter. If there is recovery in progress and required
684 * object is missing then it can be re-created before write.
686 * \param[in] env execution environment
687 * \param[in] exp OBD export of client
688 * \param[in] ofd OFD device
689 * \param[in] fid FID of object
690 * \param[in] la object attributes
691 * \param[in] oa OBDO structure from client
692 * \param[in] objcount always 1
693 * \param[in] obj object data
694 * \param[in] rnb remote buffers
695 * \param[in] nr_local number of local buffers
696 * \param[in] lnb local buffers
697 * \param[in] jobid job ID name
699 * \retval 0 on successful prepare
700 * \retval negative value on error
702 static int ofd_preprw_write(const struct lu_env *env, struct obd_export *exp,
703 struct ofd_device *ofd, const struct lu_fid *fid,
704 struct lu_attr *la, struct obdo *oa,
705 int objcount, struct obd_ioobj *obj,
706 struct niobuf_remote *rnb, int *nr_local,
707 struct niobuf_local *lnb)
709 struct ofd_object *fo;
710 int i, j, k, rc = 0, tot_bytes = 0;
711 enum dt_bufs_type dbt = DT_BUFS_TYPE_WRITE;
712 int maxlnb = *nr_local;
716 LASSERT(env != NULL);
717 LASSERT(objcount == 1);
719 if (unlikely(exp->exp_obd->obd_recovering)) {
720 u64 seq = ostid_seq(&oa->o_oi);
721 u64 oid = ostid_id(&oa->o_oi);
722 struct ofd_seq *oseq;
724 oseq = ofd_seq_load(env, ofd, seq);
726 CERROR("%s: Can't find FID Sequence %#llx: rc = %d\n",
727 ofd_name(ofd), seq, (int)PTR_ERR(oseq));
728 GOTO(out, rc = -EINVAL);
731 if (oid > ofd_seq_last_oid(oseq)) {
735 mutex_lock(&oseq->os_create_lock);
736 diff = oid - ofd_seq_last_oid(oseq);
738 /* Do sync create if the seq is about to used up */
739 if (fid_seq_is_idif(seq) || fid_seq_is_mdt0(seq)) {
740 if (unlikely(oid >= IDIF_MAX_OID))
742 } else if (fid_seq_is_norm(seq)) {
744 LUSTRE_DATA_SEQ_MAX_WIDTH - 1))
747 CERROR("%s : invalid o_seq "DOSTID"\n",
748 ofd_name(ofd), POSTID(&oa->o_oi));
749 mutex_unlock(&oseq->os_create_lock);
750 ofd_seq_put(env, oseq);
751 GOTO(out, rc = -EINVAL);
755 u64 next_id = ofd_seq_last_oid(oseq) + 1;
756 int count = ofd_precreate_batch(ofd, diff);
758 rc = ofd_precreate_objects(env, ofd, next_id,
761 mutex_unlock(&oseq->os_create_lock);
762 ofd_seq_put(env, oseq);
769 mutex_unlock(&oseq->os_create_lock);
772 ofd_seq_put(env, oseq);
775 /* Process incoming grant info, set OBD_BRW_GRANTED flag and grant some
776 * space back if possible, we have to do this outside of the lock as
777 * grant preparation may need to sync whole fs thus wait for all the
778 * transactions to complete. */
779 tgt_grant_prepare_write(env, exp, oa, rnb, obj->ioo_bufcnt);
781 fo = ofd_object_find(env, ofd, fid);
783 GOTO(out, rc = PTR_ERR(fo));
786 ofd_info(env)->fti_obj = fo;
788 if (!ofd_object_exists(fo)) {
789 CERROR("%s: BRW to missing obj "DOSTID"\n",
790 exp->exp_obd->obd_name, POSTID(&obj->ioo_oid));
791 ofd_object_put(env, fo);
792 GOTO(out, rc = -ENOENT);
795 if (ptlrpc_connection_is_local(exp->exp_connection))
796 dbt |= DT_BUFS_TYPE_LOCAL;
801 /* parse remote buffers to local buffers and prepare the latter */
802 for (*nr_local = 0, i = 0, j = 0; i < obj->ioo_bufcnt; i++) {
803 begin = min_t(__u64, begin, rnb[i].rnb_offset);
804 end = max_t(__u64, end, rnb[i].rnb_offset + rnb[i].rnb_len);
806 if (OBD_FAIL_CHECK(OBD_FAIL_OST_2BIG_NIOBUF))
807 rnb[i].rnb_len += PAGE_SIZE;
808 rc = dt_bufs_get(env, ofd_object_child(fo),
809 rnb + i, lnb + j, maxlnb, dbt);
810 if (unlikely(rc < 0))
811 GOTO(err_nolock, rc);
812 LASSERT(rc <= PTLRPC_MAX_BRW_PAGES);
813 /* correct index for local buffers to continue with */
814 for (k = 0; k < rc; k++) {
815 lnb[j+k].lnb_flags = rnb[i].rnb_flags;
816 lnb[j+k].lnb_flags &= ~OBD_BRW_LOCALS;
817 if (!(rnb[i].rnb_flags & OBD_BRW_GRANTED))
818 lnb[j+k].lnb_rc = -ENOSPC;
823 LASSERT(j <= PTLRPC_MAX_BRW_PAGES);
824 tot_bytes += rnb[i].rnb_len;
826 LASSERT(*nr_local > 0 && *nr_local <= PTLRPC_MAX_BRW_PAGES);
828 ofd_read_lock(env, fo);
829 if (!ofd_object_exists(fo)) {
830 CERROR("%s: BRW to missing obj "DOSTID": rc = -ENOENT\n",
831 exp->exp_obd->obd_name, POSTID(&obj->ioo_oid));
832 GOTO(err, rc = -ENOENT);
835 if (ofd->ofd_lfsck_verify_pfid && oa->o_valid & OBD_MD_FLFID) {
836 rc = ofd_verify_ff(env, fo, oa);
841 /* need to verify layout version */
842 if (oa->o_valid & OBD_MD_LAYOUT_VERSION) {
843 rc = ofd_verify_layout_version(env, fo, oa);
848 rc = dt_write_prep(env, ofd_object_child(fo), lnb, *nr_local);
849 if (unlikely(rc != 0))
852 ofd_read_unlock(env, fo);
856 .f_seq = oa->o_parent_seq,
857 .f_oid = oa->o_parent_oid,
858 .f_ver = oa->o_stripe_idx,
868 ofd_read_unlock(env, fo);
870 dt_bufs_put(env, ofd_object_child(fo), lnb, *nr_local);
871 ofd_object_put(env, fo);
872 /* tgt_grant_prepare_write() was called, so we must commit */
873 tgt_grant_commit(exp, oa->o_grant_used, rc);
875 /* let's still process incoming grant information packed in the oa,
876 * but without enforcing grant since we won't proceed with the write.
877 * Just like a read request actually. */
878 tgt_grant_prepare_read(env, exp, oa);
883 * Prepare bulk IO requests for processing.
885 * This function does initial checks of IO and calls corresponding
886 * functions for read/write processing.
888 * \param[in] env execution environment
889 * \param[in] cmd IO type (read/write)
890 * \param[in] exp OBD export of client
891 * \param[in] oa OBDO structure from request
892 * \param[in] objcount always 1
893 * \param[in] obj object data
894 * \param[in] rnb remote buffers
895 * \param[in] nr_local number of local buffers
896 * \param[in] lnb local buffers
898 * \retval 0 on successful prepare
899 * \retval negative value on error
901 int ofd_preprw(const struct lu_env *env, int cmd, struct obd_export *exp,
902 struct obdo *oa, int objcount, struct obd_ioobj *obj,
903 struct niobuf_remote *rnb, int *nr_local,
904 struct niobuf_local *lnb)
906 struct tgt_session_info *tsi = tgt_ses_info(env);
907 struct ofd_device *ofd = ofd_exp(exp);
908 struct ofd_thread_info *info;
909 const struct lu_fid *fid = &oa->o_oi.oi_fid;
912 if (*nr_local > PTLRPC_MAX_BRW_PAGES) {
913 CERROR("%s: bulk has too many pages %d, which exceeds the maximum pages per RPC of %d\n",
914 exp->exp_obd->obd_name, *nr_local, PTLRPC_MAX_BRW_PAGES);
918 if (tgt_ses_req(tsi) == NULL) { /* echo client case */
919 info = ofd_info_init(env, exp);
921 info = tsi2ofd_info(tsi);
926 if (OBD_FAIL_CHECK(OBD_FAIL_SRV_ENOENT)) {
927 struct ofd_seq *oseq;
929 oseq = ofd_seq_load(env, ofd, ostid_seq(&oa->o_oi));
931 CERROR("%s: Can not find seq for "DOSTID
932 ": rc = %ld\n", ofd_name(ofd), POSTID(&oa->o_oi),
937 if (oseq->os_destroys_in_progress == 0) {
938 /* don't fail lookups for orphan recovery, it causes
939 * later LBUGs when objects still exist during
941 ofd_seq_put(env, oseq);
944 ofd_seq_put(env, oseq);
947 LASSERT(objcount == 1);
948 LASSERT(obj->ioo_bufcnt > 0);
950 if (cmd == OBD_BRW_WRITE) {
951 la_from_obdo(&info->fti_attr, oa, OBD_MD_FLGETATTR);
952 rc = ofd_preprw_write(env, exp, ofd, fid, &info->fti_attr, oa,
953 objcount, obj, rnb, nr_local, lnb);
954 } else if (cmd == OBD_BRW_READ) {
955 tgt_grant_prepare_read(env, exp, oa);
956 rc = ofd_preprw_read(env, exp, ofd, fid, &info->fti_attr, oa,
957 obj->ioo_bufcnt, rnb, nr_local, lnb);
959 CERROR("%s: wrong cmd %d received!\n",
960 exp->exp_obd->obd_name, cmd);
967 * Drop reference on local buffers for read bulk IO.
969 * This will free all local buffers use by this read request.
971 * \param[in] env execution environment
972 * \param[in] ofd OFD device
973 * \param[in] fid object FID
974 * \param[in] objcount always 1
975 * \param[in] niocount number of local buffers
976 * \param[in] lnb local buffers
978 * \retval 0 on successful execution
979 * \retval negative value on error
982 ofd_commitrw_read(const struct lu_env *env, struct ofd_device *ofd,
983 const struct lu_fid *fid, int objcount, int niocount,
984 struct niobuf_local *lnb)
986 struct ofd_object *fo;
990 LASSERT(niocount > 0);
992 fo = ofd_info(env)->fti_obj;
995 * there is no guarantee the object still exists as the client
996 * behind this RPC could have been evicted allowing concurrent
997 * OST_DESTROY to remove the object.
999 dt_bufs_put(env, ofd_object_child(fo), lnb, niocount);
1001 ofd_object_put(env, fo);
1007 * Set attributes of object during write bulk IO processing.
1009 * Change object attributes and write parent FID into extended
1010 * attributes when needed.
1012 * \param[in] env execution environment
1013 * \param[in] ofd OFD device
1014 * \param[in] ofd_obj OFD object
1015 * \param[in] la object attributes
1016 * \param[in] oa obdo
1018 * \retval 0 on successful attributes update
1019 * \retval negative value on error
1022 ofd_write_attr_set(const struct lu_env *env, struct ofd_device *ofd,
1023 struct ofd_object *ofd_obj, struct lu_attr *la,
1026 struct ofd_thread_info *info = ofd_info(env);
1027 struct filter_fid *ff = &info->fti_mds_fid;
1028 __u64 valid = la->la_valid;
1029 __u32 flags = la->la_flags;
1031 struct dt_object *dt_obj;
1039 dt_obj = ofd_object_child(ofd_obj);
1040 LASSERT(dt_obj != NULL);
1042 la->la_valid &= LA_UID | LA_GID | LA_PROJID;
1043 if (oa->o_valid & OBD_MD_FLFLAGS && oa->o_flags & LUSTRE_ENCRYPT_FL &&
1044 !OBD_FAIL_CHECK(OBD_FAIL_LFSCK_NO_ENCFLAG)) {
1045 la->la_valid |= LA_FLAGS;
1046 la->la_flags = LUSTRE_ENCRYPT_FL;
1049 rc = ofd_attr_handle_id(env, ofd_obj, la, 0 /* !is_setattr */);
1053 if (!la->la_valid && !(oa->o_valid &
1054 (OBD_MD_FLFID | OBD_MD_FLOSTLAYOUT | OBD_MD_LAYOUT_VERSION)))
1055 /* no attributes to set */
1058 th = ofd_trans_create(env, ofd);
1060 GOTO(out, rc = PTR_ERR(th));
1063 rc = dt_declare_attr_set(env, dt_obj, la, th);
1068 if (oa->o_valid & (OBD_MD_FLFID | OBD_MD_FLOSTLAYOUT |
1069 OBD_MD_LAYOUT_VERSION)) {
1070 rc = dt_declare_xattr_set(env, dt_obj, &info->fti_buf,
1071 XATTR_NAME_FID, 0, th);
1075 /* We don't need a transno for this operation which will be re-executed
1076 * anyway when the OST_WRITE (with a transno assigned) is replayed */
1077 rc = dt_trans_start_local(env, ofd->ofd_osd , th);
1081 ofd_read_lock(env, ofd_obj);
1083 rc = ofd_attr_handle_id(env, ofd_obj, la, 0 /* !is_setattr */);
1085 GOTO(out_unlock, rc);
1087 if (!la->la_valid && !(oa->o_valid &
1088 (OBD_MD_FLFID | OBD_MD_FLOSTLAYOUT | OBD_MD_LAYOUT_VERSION)))
1089 /* no attributes to set */
1090 GOTO(out_unlock, rc = 0);
1094 /* set uid/gid/projid */
1096 rc = dt_attr_set(env, dt_obj, la, th);
1098 GOTO(out_unlock, rc);
1101 fl = ofd_object_ff_update(env, ofd_obj, oa, ff);
1103 GOTO(out_unlock, rc = fl);
1105 /* set filter fid EA.
1106 * FIXME: it holds read lock of ofd object to modify the XATTR_NAME_FID
1107 * while the write lock should be held. However, it should work because
1108 * write RPCs only modify ff_{parent,layout} and those information will
1109 * be the same from all the write RPCs. The reason that fl is not used
1110 * in dt_xattr_set() is to allow this race. */
1111 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_NOPFID))
1112 GOTO(out_unlock, rc);
1113 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_UNMATCHED_PAIR1))
1114 ff->ff_parent.f_oid = cpu_to_le32(1UL << 31);
1115 else if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_UNMATCHED_PAIR2))
1116 le32_add_cpu(&ff->ff_parent.f_oid, -1);
1118 info->fti_buf.lb_buf = ff;
1119 info->fti_buf.lb_len = sizeof(*ff);
1120 rc = dt_xattr_set(env, dt_obj, &info->fti_buf, XATTR_NAME_FID, 0, th);
1122 filter_fid_le_to_cpu(&ofd_obj->ofo_ff, ff, sizeof(*ff));
1124 GOTO(out_unlock, rc);
1127 ofd_read_unlock(env, ofd_obj);
1129 dt_trans_stop(env, ofd->ofd_osd, th);
1131 la->la_valid = valid;
1132 la->la_flags = flags;
1136 struct ofd_soft_sync_callback {
1137 struct dt_txn_commit_cb ossc_cb;
1138 struct obd_export *ossc_exp;
1142 * Callback function for "soft sync" update.
1144 * Reset fed_soft_sync_count upon committing the "soft_sync" update.
1145 * See ofd_soft_sync_cb_add() below for more details on soft sync.
1147 * \param[in] env execution environment
1148 * \param[in] th transaction handle
1149 * \param[in] cb callback data
1150 * \param[in] err error code
1152 static void ofd_cb_soft_sync(struct lu_env *env, struct thandle *th,
1153 struct dt_txn_commit_cb *cb, int err)
1155 struct ofd_soft_sync_callback *ossc;
1157 ossc = container_of(cb, struct ofd_soft_sync_callback, ossc_cb);
1159 CDEBUG(D_INODE, "export %p soft sync count is reset\n", ossc->ossc_exp);
1160 atomic_set(&ossc->ossc_exp->exp_filter_data.fed_soft_sync_count, 0);
1162 class_export_cb_put(ossc->ossc_exp);
1167 * Add callback for "soft sync" processing.
1169 * The "soft sync" mechanism does asynchronous commit when OBD_BRW_SOFT_SYNC
1170 * flag is set in client buffers. The intention is for this operation to
1171 * commit pages belonging to a client which has "too many" outstanding
1172 * unstable pages in its cache. See LU-2139 for details.
1174 * This function adds callback to be called when commit is done.
1176 * \param[in] th transaction handle
1177 * \param[in] exp OBD export of client
1179 * \retval 0 on successful callback adding
1180 * \retval negative value on error
1182 static int ofd_soft_sync_cb_add(struct thandle *th, struct obd_export *exp)
1184 struct ofd_soft_sync_callback *ossc;
1185 struct dt_txn_commit_cb *dcb;
1188 OBD_ALLOC_PTR(ossc);
1192 ossc->ossc_exp = class_export_cb_get(exp);
1194 dcb = &ossc->ossc_cb;
1195 dcb->dcb_func = ofd_cb_soft_sync;
1196 INIT_LIST_HEAD(&dcb->dcb_linkage);
1197 strlcpy(dcb->dcb_name, "ofd_cb_soft_sync", sizeof(dcb->dcb_name));
1199 rc = dt_trans_cb_add(th, dcb);
1201 class_export_cb_put(exp);
1209 * Commit bulk IO buffers to the storage.
1211 * This function finalizes write IO processing by writing data to the disk.
1212 * That write can be synchronous or asynchronous depending on buffers flags.
1214 * \param[in] env execution environment
1215 * \param[in] exp OBD export of client
1216 * \param[in] ofd OFD device
1217 * \param[in] fid FID of object
1218 * \param[in] la object attributes
1219 * \param[in] ff parent FID of object
1220 * \param[in] objcount always 1
1221 * \param[in] niocount number of local buffers
1222 * \param[in] lnb local buffers
1223 * \param[in] granted grant space consumed for the bulk I/O
1224 * \param[in] old_rc result of processing at this point
1226 * \retval 0 on successful commit
1227 * \retval negative value on error
1230 ofd_commitrw_write(const struct lu_env *env, struct obd_export *exp,
1231 struct ofd_device *ofd, const struct lu_fid *fid,
1232 struct lu_attr *la, struct obdo *oa, int objcount,
1233 int niocount, struct niobuf_local *lnb,
1234 unsigned long granted, int old_rc)
1236 struct ofd_thread_info *info = ofd_info(env);
1237 struct filter_export_data *fed = &exp->exp_filter_data;
1238 struct ofd_object *fo;
1239 struct dt_object *o;
1245 bool soft_sync = false;
1246 bool cb_registered = false;
1247 bool fake_write = false;
1251 LASSERT(objcount == 1);
1253 fo = ofd_info(env)->fti_obj;
1254 LASSERT(fo != NULL);
1256 o = ofd_object_child(fo);
1260 GOTO(out, rc = old_rc);
1261 if (!ofd_object_exists(fo))
1262 GOTO(out, rc = -ENOENT);
1265 * The first write to each object must set some attributes. It is
1266 * important to set the uid/gid before calling
1267 * dt_declare_write_commit() since quota enforcement is now handled in
1270 rc = ofd_write_attr_set(env, ofd, fo, la, oa);
1274 la->la_valid &= LA_ATIME | LA_MTIME | LA_CTIME;
1276 /* do fake write, to simulate the write case for performance testing */
1277 if (OBD_FAIL_CHECK_QUIET(OBD_FAIL_OST_FAKE_RW)) {
1278 struct niobuf_local *last = &lnb[niocount - 1];
1279 __u64 file_size = last->lnb_file_offset + last->lnb_len;
1280 __u64 valid = la->la_valid;
1282 la->la_valid = LA_SIZE;
1284 rc = dt_attr_get(env, o, la);
1285 if (rc < 0 && rc != -ENOENT)
1288 if (file_size < la->la_size)
1289 file_size = la->la_size;
1291 /* dirty inode by setting file size */
1292 la->la_valid = valid | LA_SIZE;
1293 la->la_size = file_size;
1299 th = ofd_trans_create(env, ofd);
1301 GOTO(out, rc = PTR_ERR(th));
1303 th->th_sync |= ofd->ofd_sync_journal;
1304 if (th->th_sync == 0) {
1305 for (i = 0; i < niocount; i++) {
1306 if (!(lnb[i].lnb_flags & OBD_BRW_ASYNC)) {
1310 if (lnb[i].lnb_flags & OBD_BRW_SOFT_SYNC)
1315 if (OBD_FAIL_CHECK(OBD_FAIL_OST_DQACQ_NET))
1316 GOTO(out_stop, rc = -EINPROGRESS);
1318 if (likely(!fake_write)) {
1319 rc = dt_declare_write_commit(env, o, lnb, niocount, th);
1324 /* don't update atime on disk if it is older */
1325 if (la->la_valid & LA_ATIME && la->la_atime <= fo->ofo_atime_ondisk)
1326 la->la_valid &= ~LA_ATIME;
1329 /* update [mac]time if needed */
1330 rc = dt_declare_attr_set(env, o, la, th);
1335 rc = ofd_trans_start(env, ofd, fo, th);
1339 ofd_read_lock(env, fo);
1340 if (!ofd_object_exists(fo))
1341 GOTO(out_unlock, rc = -ENOENT);
1343 /* Don't update timestamps if this write is older than a
1344 * setattr which modifies the timestamps. b=10150 */
1345 if (la->la_valid && tgt_fmd_check(exp, fid, info->fti_xid)) {
1346 rc = dt_attr_set(env, o, la, th);
1348 GOTO(out_unlock, rc);
1349 if (la->la_valid & LA_ATIME)
1350 fo->ofo_atime_ondisk = la->la_atime;
1353 if (likely(!fake_write)) {
1354 OBD_FAIL_TIMEOUT_ORSET(OBD_FAIL_OST_WR_ATTR_DELAY,
1355 OBD_FAIL_ONCE, cfs_fail_val);
1356 rc = dt_write_commit(env, o, lnb, niocount, th, oa->o_size);
1358 restart = th->th_restart_tran;
1359 GOTO(out_unlock, rc);
1363 /* get attr to return */
1364 rc = dt_attr_get(env, o, la);
1367 ofd_read_unlock(env, fo);
1369 /* Force commit to make the just-deleted blocks
1370 * reusable. LU-456 */
1374 /* do this before trans stop in case commit has finished */
1375 if (!th->th_sync && soft_sync && !cb_registered) {
1376 ofd_soft_sync_cb_add(th, exp);
1377 cb_registered = true;
1380 if (rc == 0 && granted > 0) {
1381 if (tgt_grant_commit_cb_add(th, exp, granted) == 0)
1385 rc2 = ofd_trans_stop(env, ofd, th, restart ? 0 : rc);
1388 if (rc == -ENOSPC && retries++ < 3) {
1389 CDEBUG(D_INODE, "retry after force commit, retries:%d\n",
1397 if (retries % 10000 == 0)
1398 CERROR("%s: restart IO write too many times: %d\n",
1399 ofd_name(ofd), retries);
1400 CDEBUG(D_INODE, "retry transaction, retries:%d\n",
1405 /* reset fed_soft_sync_count upon non-SOFT_SYNC RPC */
1406 atomic_set(&fed->fed_soft_sync_count, 0);
1407 else if (atomic_inc_return(&fed->fed_soft_sync_count) ==
1408 ofd->ofd_soft_sync_limit)
1409 dt_commit_async(env, ofd->ofd_osd);
1412 dt_bufs_put(env, o, lnb, niocount);
1413 ofd_object_put(env, fo);
1415 tgt_grant_commit(exp, granted, old_rc);
1420 * Commit bulk IO to the storage.
1422 * This is companion function to the ofd_preprw(). It finishes bulk IO
1423 * request processing by committing buffers to the storage (WRITE) and/or
1424 * freeing those buffers (read/write). See ofd_commitrw_read() and
1425 * ofd_commitrw_write() for details about each type of IO.
1427 * \param[in] env execution environment
1428 * \param[in] cmd IO type (READ/WRITE)
1429 * \param[in] exp OBD export of client
1430 * \param[in] oa OBDO structure from client
1431 * \param[in] objcount always 1
1432 * \param[in] obj object data
1433 * \param[in] rnb remote buffers
1434 * \param[in] npages number of local buffers
1435 * \param[in] lnb local buffers
1436 * \param[in] old_rc result of processing at this point
1438 * \retval 0 on successful commit
1439 * \retval negative value on error
1441 int ofd_commitrw(const struct lu_env *env, int cmd, struct obd_export *exp,
1442 struct obdo *oa, int objcount, struct obd_ioobj *obj,
1443 struct niobuf_remote *rnb, int npages,
1444 struct niobuf_local *lnb, int old_rc, int nob, ktime_t kstart)
1446 struct tgt_session_info *tsi = tgt_ses_info(env);
1447 struct ofd_thread_info *info = ofd_info(env);
1448 struct ofd_device *ofd = ofd_exp(exp);
1449 const struct lu_fid *fid = &oa->o_oi.oi_fid;
1450 struct ldlm_namespace *ns = ofd->ofd_namespace;
1451 struct ldlm_resource *rs = NULL;
1455 int root_squash = 0;
1457 LASSERT(npages > 0);
1459 if (tgt_ses_req(tsi) == NULL) { /* echo client case */
1462 jobid = tsi->tsi_jobid;
1465 if (cmd == OBD_BRW_WRITE) {
1466 struct lu_nodemap *nodemap;
1467 __u32 mapped_uid, mapped_gid, mapped_projid;
1469 /* doing this before the commit operation places the counter
1470 * update almost immediately after reply to the client, which
1471 * gives reasonable time stats and lets us use the actual
1472 * bytes of i/o (rather than requested)
1474 ofd_counter_incr(exp, LPROC_OFD_STATS_WRITE_BYTES, jobid, nob);
1475 ofd_counter_incr(exp, LPROC_OFD_STATS_WRITE, jobid,
1476 ktime_us_delta(ktime_get(), kstart));
1478 mapped_uid = oa->o_uid;
1479 mapped_gid = oa->o_gid;
1480 mapped_projid = oa->o_projid;
1481 nodemap = nodemap_get_from_exp(exp);
1482 if (!IS_ERR(nodemap)) {
1483 mapped_uid = nodemap_map_id(nodemap, NODEMAP_UID,
1484 NODEMAP_FS_TO_CLIENT,
1486 mapped_gid = nodemap_map_id(nodemap, NODEMAP_GID,
1487 NODEMAP_FS_TO_CLIENT,
1489 mapped_projid = nodemap_map_id(nodemap, NODEMAP_PROJID,
1490 NODEMAP_FS_TO_CLIENT,
1492 } else if (old_rc == 0) {
1493 old_rc = PTR_ERR(nodemap);
1496 if (!IS_ERR_OR_NULL(nodemap)) {
1497 /* do not bypass quota enforcement if squashed uid */
1498 if (unlikely(mapped_uid == nodemap->nm_squash_uid)) {
1501 for (idx = 0; idx < npages; idx++)
1502 lnb[idx].lnb_flags &=
1503 ~OBD_BRW_SYS_RESOURCE;
1506 nodemap_putref(nodemap);
1509 valid = OBD_MD_FLUID | OBD_MD_FLGID | OBD_MD_FLPROJID |
1510 OBD_MD_FLATIME | OBD_MD_FLMTIME | OBD_MD_FLCTIME;
1511 la_from_obdo(&info->fti_attr, oa, valid);
1513 rc = ofd_commitrw_write(env, exp, ofd, fid, &info->fti_attr,
1514 oa, objcount, npages, lnb,
1515 oa->o_grant_used, old_rc);
1517 obdo_from_la(oa, &info->fti_attr,
1518 OFD_VALID_FLAGS | LA_GID | LA_UID |
1521 obdo_from_la(oa, &info->fti_attr, LA_GID | LA_UID |
1524 /* don't report overquota flag if we failed before reaching
1526 if (old_rc == 0 && (rc == 0 || rc == -EDQUOT)) {
1527 /* return the overquota flags to client */
1528 if (lnb[0].lnb_flags & OBD_BRW_OVER_USRQUOTA) {
1529 if (oa->o_valid & OBD_MD_FLFLAGS)
1530 oa->o_flags |= OBD_FL_NO_USRQUOTA;
1532 oa->o_flags = OBD_FL_NO_USRQUOTA;
1535 if (lnb[0].lnb_flags & OBD_BRW_OVER_GRPQUOTA) {
1536 if (oa->o_valid & OBD_MD_FLFLAGS)
1537 oa->o_flags |= OBD_FL_NO_GRPQUOTA;
1539 oa->o_flags = OBD_FL_NO_GRPQUOTA;
1541 if (lnb[0].lnb_flags & OBD_BRW_OVER_PRJQUOTA) {
1542 if (oa->o_valid & OBD_MD_FLFLAGS)
1543 oa->o_flags |= OBD_FL_NO_PRJQUOTA;
1545 oa->o_flags = OBD_FL_NO_PRJQUOTA;
1548 if (lnb[0].lnb_flags & OBD_BRW_ROOT_PRJQUOTA)
1549 oa->o_flags |= OBD_FL_ROOT_PRJQUOTA;
1552 oa->o_flags |= OBD_FL_ROOT_SQUASH;
1554 oa->o_valid |= OBD_MD_FLFLAGS;
1555 oa->o_valid |= OBD_MD_FLALLQUOTA;
1559 * Update LVB after writing finish for server lock, see
1560 * comments in ldlm_lock_decref_internal(), If this is a
1561 * local lock on a server namespace and this was the last
1562 * reference, lock will be destroyed directly thus there
1563 * is no chance for ldlm_request_cancel() to update lvb.
1565 if (rc == 0 && (rnb[0].rnb_flags & OBD_BRW_SRVLOCK)) {
1566 ost_fid_build_resid(fid, &info->fti_resid);
1567 rs = ldlm_resource_get(ns, &info->fti_resid,
1570 ldlm_res_lvbo_update(rs, NULL, 1);
1571 ldlm_resource_putref(rs);
1575 /* Convert back to client IDs. LU-9671.
1576 * nodemap_get_from_exp() may fail due to nodemap deactivated,
1577 * server ID will be returned back to client in that case. */
1578 oa->o_uid = mapped_uid;
1579 oa->o_gid = mapped_gid;
1580 oa->o_projid = mapped_projid;
1581 } else if (cmd == OBD_BRW_READ) {
1582 /* see comment on LPROC_OFD_STATS_WRITE_BYTES usage above */
1583 ofd_counter_incr(exp, LPROC_OFD_STATS_READ_BYTES, jobid, nob);
1584 ofd_counter_incr(exp, LPROC_OFD_STATS_READ, jobid,
1585 ktime_us_delta(ktime_get(), kstart));
1587 rc = ofd_commitrw_read(env, ofd, fid, objcount,