1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
38 # define EXPORT_SYMTAB
40 #define DEBUG_SUBSYSTEM S_LOV
43 #include <libcfs/libcfs.h>
45 #include <liblustre.h>
48 #include <obd_class.h>
50 #include <lustre/lustre_idl.h>
52 #include "lov_internal.h"
54 static void lov_init_set(struct lov_request_set *set)
57 set->set_completes = 0;
60 CFS_INIT_LIST_HEAD(&set->set_list);
61 atomic_set(&set->set_refcount, 1);
64 static void lov_finish_set(struct lov_request_set *set)
66 struct list_head *pos, *n;
70 list_for_each_safe(pos, n, &set->set_list) {
71 struct lov_request *req = list_entry(pos, struct lov_request,
73 list_del_init(&req->rq_link);
76 OBDO_FREE(req->rq_oi.oi_oa);
78 OBD_FREE(req->rq_oi.oi_md, req->rq_buflen);
79 if (req->rq_oi.oi_osfs)
80 OBD_FREE(req->rq_oi.oi_osfs,
81 sizeof(*req->rq_oi.oi_osfs));
82 OBD_FREE(req, sizeof(*req));
86 int len = set->set_oabufs * sizeof(*set->set_pga);
87 OBD_FREE(set->set_pga, len);
90 lov_llh_put(set->set_lockh);
92 OBD_FREE(set, sizeof(*set));
96 void lov_update_set(struct lov_request_set *set,
97 struct lov_request *req, int rc)
102 set->set_completes++;
107 int lov_update_common_set(struct lov_request_set *set,
108 struct lov_request *req, int rc)
110 struct lov_obd *lov = &set->set_exp->exp_obd->u.lov;
113 lov_update_set(set, req, rc);
115 /* grace error on inactive ost */
116 if (rc && !(lov->lov_tgts[req->rq_idx] &&
117 lov->lov_tgts[req->rq_idx]->ltd_active))
120 /* FIXME in raid1 regime, should return 0 */
124 void lov_set_add_req(struct lov_request *req, struct lov_request_set *set)
126 list_add_tail(&req->rq_link, &set->set_list);
130 int lov_update_enqueue_set(struct lov_request *req, __u32 mode, int rc)
132 struct lov_request_set *set = req->rq_rqset;
133 struct lustre_handle *lov_lockhp;
134 struct lov_oinfo *loi;
137 LASSERT(set != NULL);
138 LASSERT(set->set_oi != NULL);
140 lov_lockhp = set->set_lockh->llh_handles + req->rq_stripe;
141 loi = set->set_oi->oi_md->lsm_oinfo[req->rq_stripe];
143 /* XXX LOV STACKING: OSC gets a copy, created in lov_prep_enqueue_set
144 * and that copy can be arbitrarily out of date.
146 * The LOV API is due for a serious rewriting anyways, and this
147 * can be addressed then. */
149 if (rc == ELDLM_OK) {
150 struct ldlm_lock *lock = ldlm_handle2lock(lov_lockhp);
153 LASSERT(lock != NULL);
154 lov_stripe_lock(set->set_oi->oi_md);
155 loi->loi_lvb = req->rq_oi.oi_md->lsm_oinfo[0]->loi_lvb;
156 tmp = loi->loi_lvb.lvb_size;
157 /* Extend KMS up to the end of this lock and no further
158 * A lock on [x,y] means a KMS of up to y + 1 bytes! */
159 if (tmp > lock->l_policy_data.l_extent.end)
160 tmp = lock->l_policy_data.l_extent.end + 1;
161 if (tmp >= loi->loi_kms) {
162 LDLM_DEBUG(lock, "lock acquired, setting rss="LPU64
163 ", kms="LPU64, loi->loi_lvb.lvb_size, tmp);
165 loi->loi_kms_valid = 1;
167 LDLM_DEBUG(lock, "lock acquired, setting rss="
168 LPU64"; leaving kms="LPU64", end="LPU64,
169 loi->loi_lvb.lvb_size, loi->loi_kms,
170 lock->l_policy_data.l_extent.end);
172 lov_stripe_unlock(set->set_oi->oi_md);
173 ldlm_lock_allow_match(lock);
175 } else if ((rc == ELDLM_LOCK_ABORTED) &&
176 (set->set_oi->oi_flags & LDLM_FL_HAS_INTENT)) {
177 memset(lov_lockhp, 0, sizeof(*lov_lockhp));
178 lov_stripe_lock(set->set_oi->oi_md);
179 loi->loi_lvb = req->rq_oi.oi_md->lsm_oinfo[0]->loi_lvb;
180 lov_stripe_unlock(set->set_oi->oi_md);
181 CDEBUG(D_INODE, "glimpsed, setting rss="LPU64"; leaving"
182 " kms="LPU64"\n", loi->loi_lvb.lvb_size, loi->loi_kms);
185 struct obd_export *exp = set->set_exp;
186 struct lov_obd *lov = &exp->exp_obd->u.lov;
188 memset(lov_lockhp, 0, sizeof(*lov_lockhp));
189 if (lov->lov_tgts[req->rq_idx] &&
190 lov->lov_tgts[req->rq_idx]->ltd_active) {
191 /* -EUSERS used by OST to report file contention */
192 if (rc != -EINTR && rc != -EUSERS)
193 CERROR("enqueue objid "LPX64" subobj "
194 LPX64" on OST idx %d: rc %d\n",
195 set->set_oi->oi_md->lsm_object_id,
196 loi->loi_id, loi->loi_ost_idx, rc);
201 lov_update_set(set, req, rc);
205 /* The callback for osc_enqueue that updates lov info for every OSC request. */
206 static int cb_update_enqueue(struct obd_info *oinfo, int rc)
208 struct ldlm_enqueue_info *einfo;
209 struct lov_request *lovreq;
211 lovreq = container_of(oinfo, struct lov_request, rq_oi);
212 einfo = lovreq->rq_rqset->set_ei;
213 return lov_update_enqueue_set(lovreq, einfo->ei_mode, rc);
216 static int enqueue_done(struct lov_request_set *set, __u32 mode)
218 struct lov_request *req;
219 struct lov_obd *lov = &set->set_exp->exp_obd->u.lov;
223 /* enqueue/match success, just return */
224 if (set->set_completes && set->set_completes == set->set_success)
227 /* cancel enqueued/matched locks */
228 list_for_each_entry(req, &set->set_list, rq_link) {
229 struct lustre_handle *lov_lockhp;
231 if (!req->rq_complete || req->rq_rc)
234 lov_lockhp = set->set_lockh->llh_handles + req->rq_stripe;
236 if (!lustre_handle_is_used(lov_lockhp))
239 rc = obd_cancel(lov->lov_tgts[req->rq_idx]->ltd_exp,
240 req->rq_oi.oi_md, mode, lov_lockhp);
241 if (rc && lov->lov_tgts[req->rq_idx] &&
242 lov->lov_tgts[req->rq_idx]->ltd_active)
243 CERROR("cancelling obdjid "LPX64" on OST "
244 "idx %d error: rc = %d\n",
245 req->rq_oi.oi_md->lsm_object_id,
249 lov_llh_put(set->set_lockh);
253 int lov_fini_enqueue_set(struct lov_request_set *set, __u32 mode, int rc,
254 struct ptlrpc_request_set *rqset)
261 LASSERT(set->set_exp);
262 /* Do enqueue_done only for sync requests and if any request
266 set->set_completes = 0;
267 ret = enqueue_done(set, mode);
268 } else if (set->set_lockh)
269 lov_llh_put(set->set_lockh);
271 if (atomic_dec_and_test(&set->set_refcount))
274 RETURN(rc ? rc : ret);
277 int lov_prep_enqueue_set(struct obd_export *exp, struct obd_info *oinfo,
278 struct ldlm_enqueue_info *einfo,
279 struct lov_request_set **reqset)
281 struct lov_obd *lov = &exp->exp_obd->u.lov;
282 struct lov_request_set *set;
286 OBD_ALLOC(set, sizeof(*set));
294 set->set_lockh = lov_llh_new(oinfo->oi_md);
295 if (set->set_lockh == NULL)
296 GOTO(out_set, rc = -ENOMEM);
297 oinfo->oi_lockh->cookie = set->set_lockh->llh_handle.h_cookie;
299 for (i = 0; i < oinfo->oi_md->lsm_stripe_count; i++) {
300 struct lov_oinfo *loi;
301 struct lov_request *req;
304 loi = oinfo->oi_md->lsm_oinfo[i];
305 if (!lov_stripe_intersects(oinfo->oi_md, i,
306 oinfo->oi_policy.l_extent.start,
307 oinfo->oi_policy.l_extent.end,
311 if (!lov->lov_tgts[loi->loi_ost_idx] ||
312 !lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
313 CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
317 OBD_ALLOC(req, sizeof(*req));
319 GOTO(out_set, rc = -ENOMEM);
321 req->rq_buflen = sizeof(*req->rq_oi.oi_md) +
322 sizeof(struct lov_oinfo *) +
323 sizeof(struct lov_oinfo);
324 OBD_ALLOC(req->rq_oi.oi_md, req->rq_buflen);
325 if (req->rq_oi.oi_md == NULL) {
326 OBD_FREE(req, sizeof(*req));
327 GOTO(out_set, rc = -ENOMEM);
329 req->rq_oi.oi_md->lsm_oinfo[0] =
330 ((void *)req->rq_oi.oi_md) + sizeof(*req->rq_oi.oi_md) +
331 sizeof(struct lov_oinfo *);
335 /* Set lov request specific parameters. */
336 req->rq_oi.oi_lockh = set->set_lockh->llh_handles + i;
337 req->rq_oi.oi_cb_up = cb_update_enqueue;
338 req->rq_oi.oi_flags = oinfo->oi_flags;
340 LASSERT(req->rq_oi.oi_lockh);
342 req->rq_oi.oi_policy.l_extent.gid =
343 oinfo->oi_policy.l_extent.gid;
344 req->rq_oi.oi_policy.l_extent.start = start;
345 req->rq_oi.oi_policy.l_extent.end = end;
347 req->rq_idx = loi->loi_ost_idx;
350 /* XXX LOV STACKING: submd should be from the subobj */
351 req->rq_oi.oi_md->lsm_object_id = loi->loi_id;
352 req->rq_oi.oi_md->lsm_object_gr = oinfo->oi_md->lsm_object_gr;
353 req->rq_oi.oi_md->lsm_stripe_count = 0;
354 req->rq_oi.oi_md->lsm_oinfo[0]->loi_kms_valid =
356 req->rq_oi.oi_md->lsm_oinfo[0]->loi_kms = loi->loi_kms;
357 req->rq_oi.oi_md->lsm_oinfo[0]->loi_lvb = loi->loi_lvb;
359 lov_set_add_req(req, set);
362 GOTO(out_set, rc = -EIO);
366 lov_fini_enqueue_set(set, einfo->ei_mode, rc, NULL);
370 int lov_update_match_set(struct lov_request_set *set, struct lov_request *req,
380 lov_update_set(set, req, ret);
384 int lov_fini_match_set(struct lov_request_set *set, __u32 mode, int flags)
391 LASSERT(set->set_exp);
392 rc = enqueue_done(set, mode);
393 if ((set->set_count == set->set_success) &&
394 (flags & LDLM_FL_TEST_LOCK))
395 lov_llh_put(set->set_lockh);
397 if (atomic_dec_and_test(&set->set_refcount))
403 int lov_prep_match_set(struct obd_export *exp, struct obd_info *oinfo,
404 struct lov_stripe_md *lsm, ldlm_policy_data_t *policy,
405 __u32 mode, struct lustre_handle *lockh,
406 struct lov_request_set **reqset)
408 struct lov_obd *lov = &exp->exp_obd->u.lov;
409 struct lov_request_set *set;
413 OBD_ALLOC(set, sizeof(*set));
420 set->set_oi->oi_md = lsm;
421 set->set_lockh = lov_llh_new(lsm);
422 if (set->set_lockh == NULL)
423 GOTO(out_set, rc = -ENOMEM);
424 lockh->cookie = set->set_lockh->llh_handle.h_cookie;
426 for (i = 0; i < lsm->lsm_stripe_count; i++){
427 struct lov_oinfo *loi;
428 struct lov_request *req;
431 loi = lsm->lsm_oinfo[i];
432 if (!lov_stripe_intersects(lsm, i, policy->l_extent.start,
433 policy->l_extent.end, &start, &end))
436 /* FIXME raid1 should grace this error */
437 if (!lov->lov_tgts[loi->loi_ost_idx] ||
438 !lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
439 CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
440 GOTO(out_set, rc = -EIO);
443 OBD_ALLOC(req, sizeof(*req));
445 GOTO(out_set, rc = -ENOMEM);
447 req->rq_buflen = sizeof(*req->rq_oi.oi_md);
448 OBD_ALLOC(req->rq_oi.oi_md, req->rq_buflen);
449 if (req->rq_oi.oi_md == NULL) {
450 OBD_FREE(req, sizeof(*req));
451 GOTO(out_set, rc = -ENOMEM);
454 req->rq_oi.oi_policy.l_extent.start = start;
455 req->rq_oi.oi_policy.l_extent.end = end;
456 req->rq_oi.oi_policy.l_extent.gid = policy->l_extent.gid;
458 req->rq_idx = loi->loi_ost_idx;
461 /* XXX LOV STACKING: submd should be from the subobj */
462 req->rq_oi.oi_md->lsm_object_id = loi->loi_id;
463 req->rq_oi.oi_md->lsm_object_gr = lsm->lsm_object_gr;
464 req->rq_oi.oi_md->lsm_stripe_count = 0;
466 lov_set_add_req(req, set);
469 GOTO(out_set, rc = -EIO);
473 lov_fini_match_set(set, mode, 0);
477 int lov_fini_cancel_set(struct lov_request_set *set)
485 LASSERT(set->set_exp);
487 lov_llh_put(set->set_lockh);
489 if (atomic_dec_and_test(&set->set_refcount))
495 int lov_prep_cancel_set(struct obd_export *exp, struct obd_info *oinfo,
496 struct lov_stripe_md *lsm, __u32 mode,
497 struct lustre_handle *lockh,
498 struct lov_request_set **reqset)
500 struct lov_request_set *set;
504 OBD_ALLOC(set, sizeof(*set));
511 set->set_oi->oi_md = lsm;
512 set->set_lockh = lov_handle2llh(lockh);
513 if (set->set_lockh == NULL) {
514 CERROR("LOV: invalid lov lock handle %p\n", lockh);
515 GOTO(out_set, rc = -EINVAL);
517 lockh->cookie = set->set_lockh->llh_handle.h_cookie;
519 for (i = 0; i < lsm->lsm_stripe_count; i++){
520 struct lov_request *req;
521 struct lustre_handle *lov_lockhp;
522 struct lov_oinfo *loi = lsm->lsm_oinfo[i];
524 lov_lockhp = set->set_lockh->llh_handles + i;
525 if (!lustre_handle_is_used(lov_lockhp)) {
526 CDEBUG(D_RPCTRACE,"lov idx %d subobj "LPX64" no lock\n",
527 loi->loi_ost_idx, loi->loi_id);
531 OBD_ALLOC(req, sizeof(*req));
533 GOTO(out_set, rc = -ENOMEM);
535 req->rq_buflen = sizeof(*req->rq_oi.oi_md);
536 OBD_ALLOC(req->rq_oi.oi_md, req->rq_buflen);
537 if (req->rq_oi.oi_md == NULL) {
538 OBD_FREE(req, sizeof(*req));
539 GOTO(out_set, rc = -ENOMEM);
542 req->rq_idx = loi->loi_ost_idx;
545 /* XXX LOV STACKING: submd should be from the subobj */
546 req->rq_oi.oi_md->lsm_object_id = loi->loi_id;
547 req->rq_oi.oi_md->lsm_object_gr = lsm->lsm_object_gr;
548 req->rq_oi.oi_md->lsm_stripe_count = 0;
550 lov_set_add_req(req, set);
553 GOTO(out_set, rc = -EIO);
557 lov_fini_cancel_set(set);
561 static int create_done(struct obd_export *exp, struct lov_request_set *set,
562 struct lov_stripe_md **lsmp)
564 struct lov_obd *lov = &exp->exp_obd->u.lov;
565 struct obd_trans_info *oti = set->set_oti;
566 struct obdo *src_oa = set->set_oi->oi_oa;
567 struct lov_request *req;
568 struct obdo *ret_oa = NULL;
569 int attrset = 0, rc = 0;
572 LASSERT(set->set_completes);
574 /* try alloc objects on other osts if osc_create fails for
575 * exceptions: RPC failure, ENOSPC, etc */
576 if (set->set_count != set->set_success) {
577 list_for_each_entry (req, &set->set_list, rq_link) {
581 set->set_completes--;
582 req->rq_complete = 0;
584 rc = qos_remedy_create(set, req);
585 lov_update_create_set(set, req, rc);
592 /* no successful creates */
593 if (set->set_success == 0)
596 /* If there was an explicit stripe set, fail. Otherwise, we
597 * got some objects and that's not bad. */
598 if (set->set_count != set->set_success) {
601 set->set_count = set->set_success;
607 GOTO(cleanup, rc = -ENOMEM);
609 list_for_each_entry(req, &set->set_list, rq_link) {
610 if (!req->rq_complete || req->rq_rc)
612 lov_merge_attrs(ret_oa, req->rq_oi.oi_oa,
613 req->rq_oi.oi_oa->o_valid, set->set_oi->oi_md,
614 req->rq_stripe, &attrset);
616 if (src_oa->o_valid & OBD_MD_FLSIZE &&
617 ret_oa->o_size != src_oa->o_size) {
618 CERROR("original size "LPU64" isn't new object size "LPU64"\n",
619 src_oa->o_size, ret_oa->o_size);
622 ret_oa->o_id = src_oa->o_id;
623 ret_oa->o_gr = src_oa->o_gr;
624 ret_oa->o_valid |= OBD_MD_FLID | OBD_MD_FLGROUP;
625 memcpy(src_oa, ret_oa, sizeof(*src_oa));
628 *lsmp = set->set_oi->oi_md;
632 list_for_each_entry(req, &set->set_list, rq_link) {
633 struct obd_export *sub_exp;
636 if (!req->rq_complete || req->rq_rc)
639 sub_exp = lov->lov_tgts[req->rq_idx]->ltd_exp;
640 err = obd_destroy(sub_exp, req->rq_oi.oi_oa, NULL, oti, NULL);
642 CERROR("Failed to uncreate objid "LPX64" subobj "
643 LPX64" on OST idx %d: rc = %d\n",
644 src_oa->o_id, req->rq_oi.oi_oa->o_id,
648 obd_free_memmd(exp, &set->set_oi->oi_md);
650 if (oti && set->set_cookies) {
651 oti->oti_logcookies = set->set_cookies;
652 if (!set->set_cookie_sent) {
653 oti_free_cookies(oti);
654 src_oa->o_valid &= ~OBD_MD_FLCOOKIE;
656 src_oa->o_valid |= OBD_MD_FLCOOKIE;
662 int lov_fini_create_set(struct lov_request_set *set,struct lov_stripe_md **lsmp)
669 LASSERT(set->set_exp);
670 if (set->set_completes)
671 rc = create_done(set->set_exp, set, lsmp);
673 if (atomic_dec_and_test(&set->set_refcount))
679 int lov_update_create_set(struct lov_request_set *set,
680 struct lov_request *req, int rc)
682 struct obd_trans_info *oti = set->set_oti;
683 struct lov_stripe_md *lsm = set->set_oi->oi_md;
684 struct lov_oinfo *loi;
685 struct lov_obd *lov = &set->set_exp->exp_obd->u.lov;
688 req->rq_stripe = set->set_success;
689 loi = lsm->lsm_oinfo[req->rq_stripe];
691 if (rc && lov->lov_tgts[req->rq_idx] &&
692 lov->lov_tgts[req->rq_idx]->ltd_active) {
693 CERROR("error creating fid "LPX64" sub-object"
694 " on OST idx %d/%d: rc = %d\n",
695 set->set_oi->oi_oa->o_id, req->rq_idx,
696 lsm->lsm_stripe_count, rc);
698 CERROR("obd_create returned invalid err %d\n", rc);
702 lov_update_set(set, req, rc);
706 loi->loi_id = req->rq_oi.oi_oa->o_id;
707 loi->loi_gr = req->rq_oi.oi_oa->o_gr;
708 loi->loi_ost_idx = req->rq_idx;
709 CDEBUG(D_INODE, "objid "LPX64" has subobj "LPX64"/"LPU64" at idx %d\n",
710 lsm->lsm_object_id, loi->loi_id, loi->loi_id, req->rq_idx);
713 if (oti && set->set_cookies)
714 ++oti->oti_logcookies;
715 if (req->rq_oi.oi_oa->o_valid & OBD_MD_FLCOOKIE)
716 set->set_cookie_sent++;
721 int lov_prep_create_set(struct obd_export *exp, struct obd_info *oinfo,
722 struct lov_stripe_md **lsmp, struct obdo *src_oa,
723 struct obd_trans_info *oti,
724 struct lov_request_set **reqset)
726 struct lov_request_set *set;
730 OBD_ALLOC(set, sizeof(*set));
737 set->set_oi->oi_md = *lsmp;
738 set->set_oi->oi_oa = src_oa;
741 rc = qos_prep_create(exp, set);
743 lov_fini_create_set(set, lsmp);
749 static int common_attr_done(struct lov_request_set *set)
751 struct list_head *pos;
752 struct lov_request *req;
754 int rc = 0, attrset = 0;
757 LASSERT(set->set_oi != NULL);
759 if (set->set_oi->oi_oa == NULL)
762 if (!set->set_success)
767 GOTO(out, rc = -ENOMEM);
769 list_for_each (pos, &set->set_list) {
770 req = list_entry(pos, struct lov_request, rq_link);
772 if (!req->rq_complete || req->rq_rc)
774 if (req->rq_oi.oi_oa->o_valid == 0) /* inactive stripe */
776 lov_merge_attrs(tmp_oa, req->rq_oi.oi_oa,
777 req->rq_oi.oi_oa->o_valid,
778 set->set_oi->oi_md, req->rq_stripe, &attrset);
781 CERROR("No stripes had valid attrs\n");
784 tmp_oa->o_id = set->set_oi->oi_oa->o_id;
785 memcpy(set->set_oi->oi_oa, tmp_oa, sizeof(*set->set_oi->oi_oa));
793 static int brw_done(struct lov_request_set *set)
795 struct lov_stripe_md *lsm = set->set_oi->oi_md;
796 struct lov_oinfo *loi = NULL;
797 struct list_head *pos;
798 struct lov_request *req;
801 list_for_each (pos, &set->set_list) {
802 req = list_entry(pos, struct lov_request, rq_link);
804 if (!req->rq_complete || req->rq_rc)
807 loi = lsm->lsm_oinfo[req->rq_stripe];
809 if (req->rq_oi.oi_oa->o_valid & OBD_MD_FLBLOCKS)
810 loi->loi_lvb.lvb_blocks = req->rq_oi.oi_oa->o_blocks;
816 int lov_fini_brw_set(struct lov_request_set *set)
823 LASSERT(set->set_exp);
824 if (set->set_completes) {
826 /* FIXME update qos data here */
828 if (atomic_dec_and_test(&set->set_refcount))
834 int lov_prep_brw_set(struct obd_export *exp, struct obd_info *oinfo,
835 obd_count oa_bufs, struct brw_page *pga,
836 struct obd_trans_info *oti,
837 struct lov_request_set **reqset)
844 struct lov_request_set *set;
845 struct lov_obd *lov = &exp->exp_obd->u.lov;
846 int rc = 0, i, shift;
849 OBD_ALLOC(set, sizeof(*set));
857 set->set_oabufs = oa_bufs;
858 OBD_ALLOC(set->set_pga, oa_bufs * sizeof(*set->set_pga));
860 GOTO(out, rc = -ENOMEM);
862 OBD_ALLOC(info, sizeof(*info) * oinfo->oi_md->lsm_stripe_count);
864 GOTO(out, rc = -ENOMEM);
866 /* calculate the page count for each stripe */
867 for (i = 0; i < oa_bufs; i++) {
868 int stripe = lov_stripe_number(oinfo->oi_md, pga[i].off);
869 info[stripe].count++;
872 /* alloc and initialize lov request */
874 for (i = 0; i < oinfo->oi_md->lsm_stripe_count; i++){
875 struct lov_oinfo *loi = NULL;
876 struct lov_request *req;
878 if (info[i].count == 0)
881 loi = oinfo->oi_md->lsm_oinfo[i];
882 if (!lov->lov_tgts[loi->loi_ost_idx] ||
883 !lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
884 CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
885 GOTO(out, rc = -EIO);
888 OBD_ALLOC(req, sizeof(*req));
890 GOTO(out, rc = -ENOMEM);
892 OBDO_ALLOC(req->rq_oi.oi_oa);
893 if (req->rq_oi.oi_oa == NULL) {
894 OBD_FREE(req, sizeof(*req));
895 GOTO(out, rc = -ENOMEM);
899 memcpy(req->rq_oi.oi_oa, oinfo->oi_oa,
900 sizeof(*req->rq_oi.oi_oa));
902 req->rq_oi.oi_oa->o_id = loi->loi_id;
903 req->rq_oi.oi_oa->o_stripe_idx = i;
905 req->rq_buflen = sizeof(*req->rq_oi.oi_md);
906 OBD_ALLOC(req->rq_oi.oi_md, req->rq_buflen);
907 if (req->rq_oi.oi_md == NULL) {
908 OBDO_FREE(req->rq_oi.oi_oa);
909 OBD_FREE(req, sizeof(*req));
910 GOTO(out, rc = -ENOMEM);
913 req->rq_idx = loi->loi_ost_idx;
916 /* XXX LOV STACKING */
917 req->rq_oi.oi_md->lsm_object_id = loi->loi_id;
918 req->rq_oi.oi_md->lsm_object_gr = oinfo->oi_md->lsm_object_gr;
919 req->rq_oabufs = info[i].count;
920 req->rq_pgaidx = shift;
921 shift += req->rq_oabufs;
923 /* remember the index for sort brw_page array */
924 info[i].index = req->rq_pgaidx;
926 req->rq_oi.oi_capa = oinfo->oi_capa;
928 lov_set_add_req(req, set);
931 GOTO(out, rc = -EIO);
933 /* rotate & sort the brw_page array */
934 for (i = 0; i < oa_bufs; i++) {
935 int stripe = lov_stripe_number(oinfo->oi_md, pga[i].off);
937 shift = info[stripe].index + info[stripe].off;
938 LASSERT(shift < oa_bufs);
939 set->set_pga[shift] = pga[i];
940 lov_stripe_offset(oinfo->oi_md, pga[i].off, stripe,
941 &set->set_pga[shift].off);
946 OBD_FREE(info, sizeof(*info) * oinfo->oi_md->lsm_stripe_count);
951 lov_fini_brw_set(set);
956 int lov_fini_getattr_set(struct lov_request_set *set)
963 LASSERT(set->set_exp);
964 if (set->set_completes)
965 rc = common_attr_done(set);
967 if (atomic_dec_and_test(&set->set_refcount))
973 /* The callback for osc_getattr_async that finilizes a request info when a
974 * response is recieved. */
975 static int cb_getattr_update(struct obd_info *oinfo, int rc)
977 struct lov_request *lovreq;
978 lovreq = container_of(oinfo, struct lov_request, rq_oi);
979 return lov_update_common_set(lovreq->rq_rqset, lovreq, rc);
982 int lov_prep_getattr_set(struct obd_export *exp, struct obd_info *oinfo,
983 struct lov_request_set **reqset)
985 struct lov_request_set *set;
986 struct lov_obd *lov = &exp->exp_obd->u.lov;
990 OBD_ALLOC(set, sizeof(*set));
998 for (i = 0; i < oinfo->oi_md->lsm_stripe_count; i++) {
999 struct lov_oinfo *loi;
1000 struct lov_request *req;
1002 loi = oinfo->oi_md->lsm_oinfo[i];
1003 if (!lov->lov_tgts[loi->loi_ost_idx] ||
1004 !lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
1005 CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
1009 OBD_ALLOC(req, sizeof(*req));
1011 GOTO(out_set, rc = -ENOMEM);
1014 req->rq_idx = loi->loi_ost_idx;
1016 OBDO_ALLOC(req->rq_oi.oi_oa);
1017 if (req->rq_oi.oi_oa == NULL) {
1018 OBD_FREE(req, sizeof(*req));
1019 GOTO(out_set, rc = -ENOMEM);
1021 memcpy(req->rq_oi.oi_oa, oinfo->oi_oa,
1022 sizeof(*req->rq_oi.oi_oa));
1023 req->rq_oi.oi_oa->o_id = loi->loi_id;
1024 req->rq_oi.oi_cb_up = cb_getattr_update;
1025 req->rq_oi.oi_capa = oinfo->oi_capa;
1026 req->rq_rqset = set;
1028 lov_set_add_req(req, set);
1030 if (!set->set_count)
1031 GOTO(out_set, rc = -EIO);
1035 lov_fini_getattr_set(set);
1039 int lov_fini_destroy_set(struct lov_request_set *set)
1045 LASSERT(set->set_exp);
1046 if (set->set_completes) {
1047 /* FIXME update qos data here */
1050 if (atomic_dec_and_test(&set->set_refcount))
1051 lov_finish_set(set);
1056 int lov_prep_destroy_set(struct obd_export *exp, struct obd_info *oinfo,
1057 struct obdo *src_oa, struct lov_stripe_md *lsm,
1058 struct obd_trans_info *oti,
1059 struct lov_request_set **reqset)
1061 struct lov_request_set *set;
1062 struct lov_obd *lov = &exp->exp_obd->u.lov;
1066 OBD_ALLOC(set, sizeof(*set));
1072 set->set_oi = oinfo;
1073 set->set_oi->oi_md = lsm;
1074 set->set_oi->oi_oa = src_oa;
1076 if (oti != NULL && src_oa->o_valid & OBD_MD_FLCOOKIE)
1077 set->set_cookies = oti->oti_logcookies;
1079 for (i = 0; i < lsm->lsm_stripe_count; i++) {
1080 struct lov_oinfo *loi;
1081 struct lov_request *req;
1083 loi = lsm->lsm_oinfo[i];
1084 if (!lov->lov_tgts[loi->loi_ost_idx] ||
1085 !lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
1086 CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
1090 OBD_ALLOC(req, sizeof(*req));
1092 GOTO(out_set, rc = -ENOMEM);
1095 req->rq_idx = loi->loi_ost_idx;
1097 OBDO_ALLOC(req->rq_oi.oi_oa);
1098 if (req->rq_oi.oi_oa == NULL) {
1099 OBD_FREE(req, sizeof(*req));
1100 GOTO(out_set, rc = -ENOMEM);
1102 memcpy(req->rq_oi.oi_oa, src_oa, sizeof(*req->rq_oi.oi_oa));
1103 req->rq_oi.oi_oa->o_id = loi->loi_id;
1104 lov_set_add_req(req, set);
1106 if (!set->set_count)
1107 GOTO(out_set, rc = -EIO);
1111 lov_fini_destroy_set(set);
1115 int lov_fini_setattr_set(struct lov_request_set *set)
1122 LASSERT(set->set_exp);
1123 if (set->set_completes) {
1124 rc = common_attr_done(set);
1125 /* FIXME update qos data here */
1128 if (atomic_dec_and_test(&set->set_refcount))
1129 lov_finish_set(set);
1133 int lov_update_setattr_set(struct lov_request_set *set,
1134 struct lov_request *req, int rc)
1136 struct lov_obd *lov = &req->rq_rqset->set_exp->exp_obd->u.lov;
1137 struct lov_stripe_md *lsm = req->rq_rqset->set_oi->oi_md;
1140 lov_update_set(set, req, rc);
1142 /* grace error on inactive ost */
1143 if (rc && !(lov->lov_tgts[req->rq_idx] &&
1144 lov->lov_tgts[req->rq_idx]->ltd_active))
1148 if (req->rq_oi.oi_oa->o_valid & OBD_MD_FLCTIME)
1149 lsm->lsm_oinfo[req->rq_stripe]->loi_lvb.lvb_ctime =
1150 req->rq_oi.oi_oa->o_ctime;
1151 if (req->rq_oi.oi_oa->o_valid & OBD_MD_FLMTIME)
1152 lsm->lsm_oinfo[req->rq_stripe]->loi_lvb.lvb_mtime =
1153 req->rq_oi.oi_oa->o_mtime;
1154 if (req->rq_oi.oi_oa->o_valid & OBD_MD_FLATIME)
1155 lsm->lsm_oinfo[req->rq_stripe]->loi_lvb.lvb_atime =
1156 req->rq_oi.oi_oa->o_atime;
1162 /* The callback for osc_setattr_async that finilizes a request info when a
1163 * response is recieved. */
1164 static int cb_setattr_update(struct obd_info *oinfo, int rc)
1166 struct lov_request *lovreq;
1167 lovreq = container_of(oinfo, struct lov_request, rq_oi);
1168 return lov_update_setattr_set(lovreq->rq_rqset, lovreq, rc);
1171 int lov_prep_setattr_set(struct obd_export *exp, struct obd_info *oinfo,
1172 struct obd_trans_info *oti,
1173 struct lov_request_set **reqset)
1175 struct lov_request_set *set;
1176 struct lov_obd *lov = &exp->exp_obd->u.lov;
1180 OBD_ALLOC(set, sizeof(*set));
1187 set->set_oi = oinfo;
1188 if (oti != NULL && oinfo->oi_oa->o_valid & OBD_MD_FLCOOKIE)
1189 set->set_cookies = oti->oti_logcookies;
1191 for (i = 0; i < oinfo->oi_md->lsm_stripe_count; i++) {
1192 struct lov_oinfo *loi = oinfo->oi_md->lsm_oinfo[i];
1193 struct lov_request *req;
1195 if (!lov->lov_tgts[loi->loi_ost_idx] ||
1196 !lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
1197 CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
1201 OBD_ALLOC(req, sizeof(*req));
1203 GOTO(out_set, rc = -ENOMEM);
1205 req->rq_idx = loi->loi_ost_idx;
1207 OBDO_ALLOC(req->rq_oi.oi_oa);
1208 if (req->rq_oi.oi_oa == NULL) {
1209 OBD_FREE(req, sizeof(*req));
1210 GOTO(out_set, rc = -ENOMEM);
1212 memcpy(req->rq_oi.oi_oa, oinfo->oi_oa,
1213 sizeof(*req->rq_oi.oi_oa));
1214 req->rq_oi.oi_oa->o_id = loi->loi_id;
1215 LASSERT(!(req->rq_oi.oi_oa->o_valid & OBD_MD_FLGROUP)
1216 || req->rq_oi.oi_oa->o_gr>0);
1217 req->rq_oi.oi_oa->o_stripe_idx = i;
1218 req->rq_oi.oi_cb_up = cb_setattr_update;
1219 req->rq_oi.oi_capa = oinfo->oi_capa;
1220 req->rq_rqset = set;
1222 if (oinfo->oi_oa->o_valid & OBD_MD_FLSIZE) {
1223 int off = lov_stripe_offset(oinfo->oi_md,
1224 oinfo->oi_oa->o_size, i,
1225 &req->rq_oi.oi_oa->o_size);
1227 if (off < 0 && req->rq_oi.oi_oa->o_size)
1228 req->rq_oi.oi_oa->o_size--;
1230 CDEBUG(D_INODE, "stripe %d has size "LPU64"/"LPU64"\n",
1231 i, req->rq_oi.oi_oa->o_size,
1232 oinfo->oi_oa->o_size);
1234 lov_set_add_req(req, set);
1236 if (!set->set_count)
1237 GOTO(out_set, rc = -EIO);
1241 lov_fini_setattr_set(set);
1245 int lov_fini_punch_set(struct lov_request_set *set)
1252 LASSERT(set->set_exp);
1253 if (set->set_completes) {
1255 /* FIXME update qos data here */
1256 if (set->set_success)
1257 rc = common_attr_done(set);
1260 if (atomic_dec_and_test(&set->set_refcount))
1261 lov_finish_set(set);
1266 int lov_update_punch_set(struct lov_request_set *set,
1267 struct lov_request *req, int rc)
1269 struct lov_obd *lov = &req->rq_rqset->set_exp->exp_obd->u.lov;
1270 struct lov_stripe_md *lsm = req->rq_rqset->set_oi->oi_md;
1273 lov_update_set(set, req, rc);
1275 /* grace error on inactive ost */
1276 if (rc && !lov->lov_tgts[req->rq_idx]->ltd_active)
1280 lov_stripe_lock(lsm);
1281 if (req->rq_oi.oi_oa->o_valid & OBD_MD_FLBLOCKS) {
1282 lsm->lsm_oinfo[req->rq_stripe]->loi_lvb.lvb_blocks =
1283 req->rq_oi.oi_oa->o_blocks;
1286 /* Do we need to update lvb_size here? It needn't because
1287 * it have been done in ll_truncate(). -jay */
1288 lov_stripe_unlock(lsm);
1294 /* The callback for osc_punch that finilizes a request info when a response
1296 static int cb_update_punch(struct obd_info *oinfo, int rc)
1298 struct lov_request *lovreq;
1299 lovreq = container_of(oinfo, struct lov_request, rq_oi);
1300 return lov_update_punch_set(lovreq->rq_rqset, lovreq, rc);
1303 int lov_prep_punch_set(struct obd_export *exp, struct obd_info *oinfo,
1304 struct obd_trans_info *oti,
1305 struct lov_request_set **reqset)
1307 struct lov_request_set *set;
1308 struct lov_obd *lov = &exp->exp_obd->u.lov;
1312 OBD_ALLOC(set, sizeof(*set));
1317 set->set_oi = oinfo;
1320 for (i = 0; i < oinfo->oi_md->lsm_stripe_count; i++) {
1321 struct lov_oinfo *loi = oinfo->oi_md->lsm_oinfo[i];
1322 struct lov_request *req;
1325 if (!lov->lov_tgts[loi->loi_ost_idx] ||
1326 !lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
1327 CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
1331 if (!lov_stripe_intersects(oinfo->oi_md, i,
1332 oinfo->oi_policy.l_extent.start,
1333 oinfo->oi_policy.l_extent.end,
1337 OBD_ALLOC(req, sizeof(*req));
1339 GOTO(out_set, rc = -ENOMEM);
1341 req->rq_idx = loi->loi_ost_idx;
1343 OBDO_ALLOC(req->rq_oi.oi_oa);
1344 if (req->rq_oi.oi_oa == NULL) {
1345 OBD_FREE(req, sizeof(*req));
1346 GOTO(out_set, rc = -ENOMEM);
1348 memcpy(req->rq_oi.oi_oa, oinfo->oi_oa,
1349 sizeof(*req->rq_oi.oi_oa));
1350 req->rq_oi.oi_oa->o_id = loi->loi_id;
1351 req->rq_oi.oi_oa->o_gr = loi->loi_gr;
1352 req->rq_oi.oi_oa->o_valid |= OBD_MD_FLGROUP;
1354 req->rq_oi.oi_oa->o_stripe_idx = i;
1355 req->rq_oi.oi_cb_up = cb_update_punch;
1356 req->rq_rqset = set;
1358 req->rq_oi.oi_policy.l_extent.start = rs;
1359 req->rq_oi.oi_policy.l_extent.end = re;
1360 req->rq_oi.oi_policy.l_extent.gid = -1;
1362 req->rq_oi.oi_capa = oinfo->oi_capa;
1364 lov_set_add_req(req, set);
1366 if (!set->set_count)
1367 GOTO(out_set, rc = -EIO);
1371 lov_fini_punch_set(set);
1375 int lov_fini_sync_set(struct lov_request_set *set)
1382 LASSERT(set->set_exp);
1383 if (set->set_completes) {
1384 if (!set->set_success)
1386 /* FIXME update qos data here */
1389 if (atomic_dec_and_test(&set->set_refcount))
1390 lov_finish_set(set);
1395 int lov_prep_sync_set(struct obd_export *exp, struct obd_info *oinfo,
1396 struct obdo *src_oa, struct lov_stripe_md *lsm,
1397 obd_off start, obd_off end,
1398 struct lov_request_set **reqset)
1400 struct lov_request_set *set;
1401 struct lov_obd *lov = &exp->exp_obd->u.lov;
1405 OBD_ALLOC(set, sizeof(*set));
1411 set->set_oi = oinfo;
1412 set->set_oi->oi_md = lsm;
1413 set->set_oi->oi_oa = src_oa;
1415 for (i = 0; i < lsm->lsm_stripe_count; i++) {
1416 struct lov_oinfo *loi = lsm->lsm_oinfo[i];
1417 struct lov_request *req;
1420 if (!lov->lov_tgts[loi->loi_ost_idx] ||
1421 !lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
1422 CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
1426 if (!lov_stripe_intersects(lsm, i, start, end, &rs, &re))
1429 OBD_ALLOC(req, sizeof(*req));
1431 GOTO(out_set, rc = -ENOMEM);
1433 req->rq_idx = loi->loi_ost_idx;
1435 OBDO_ALLOC(req->rq_oi.oi_oa);
1436 if (req->rq_oi.oi_oa == NULL) {
1437 OBD_FREE(req, sizeof(*req));
1438 GOTO(out_set, rc = -ENOMEM);
1440 memcpy(req->rq_oi.oi_oa, src_oa, sizeof(*req->rq_oi.oi_oa));
1441 req->rq_oi.oi_oa->o_id = loi->loi_id;
1442 req->rq_oi.oi_oa->o_stripe_idx = i;
1444 req->rq_oi.oi_policy.l_extent.start = rs;
1445 req->rq_oi.oi_policy.l_extent.end = re;
1446 req->rq_oi.oi_policy.l_extent.gid = -1;
1448 lov_set_add_req(req, set);
1450 if (!set->set_count)
1451 GOTO(out_set, rc = -EIO);
1455 lov_fini_sync_set(set);
1459 #define LOV_U64_MAX ((__u64)~0ULL)
1460 #define LOV_SUM_MAX(tot, add) \
1462 if ((tot) + (add) < (tot)) \
1463 (tot) = LOV_U64_MAX; \
1468 int lov_fini_statfs(struct obd_device *obd, struct obd_statfs *osfs,int success)
1473 __u32 expected_stripes = lov_get_stripecnt(&obd->u.lov, 0);
1475 if (osfs->os_files != LOV_U64_MAX)
1476 do_div(osfs->os_files, expected_stripes);
1477 if (osfs->os_ffree != LOV_U64_MAX)
1478 do_div(osfs->os_ffree, expected_stripes);
1480 spin_lock(&obd->obd_osfs_lock);
1481 memcpy(&obd->obd_osfs, osfs, sizeof(*osfs));
1482 obd->obd_osfs_age = cfs_time_current_64();
1483 spin_unlock(&obd->obd_osfs_lock);
1490 int lov_fini_statfs_set(struct lov_request_set *set)
1498 if (set->set_completes) {
1499 rc = lov_fini_statfs(set->set_obd, set->set_oi->oi_osfs,
1503 if (atomic_dec_and_test(&set->set_refcount))
1504 lov_finish_set(set);
1509 void lov_update_statfs(struct obd_statfs *osfs, struct obd_statfs *lov_sfs,
1512 int shift = 0, quit = 0;
1516 memcpy(osfs, lov_sfs, sizeof(*lov_sfs));
1518 if (osfs->os_bsize != lov_sfs->os_bsize) {
1519 /* assume all block sizes are always powers of 2 */
1520 /* get the bits difference */
1521 tmp = osfs->os_bsize | lov_sfs->os_bsize;
1522 for (shift = 0; shift <= 64; ++shift) {
1534 if (osfs->os_bsize < lov_sfs->os_bsize) {
1535 osfs->os_bsize = lov_sfs->os_bsize;
1537 osfs->os_bfree >>= shift;
1538 osfs->os_bavail >>= shift;
1539 osfs->os_blocks >>= shift;
1540 } else if (shift != 0) {
1541 lov_sfs->os_bfree >>= shift;
1542 lov_sfs->os_bavail >>= shift;
1543 lov_sfs->os_blocks >>= shift;
1546 /* Sandia requested that df (and so, statfs) only
1547 returned minimal available space on
1548 a single OST, so people would be able to
1549 write this much data guaranteed. */
1550 if (osfs->os_bavail > lov_sfs->os_bavail) {
1551 /* Presumably if new bavail is smaller,
1552 new bfree is bigger as well */
1553 osfs->os_bfree = lov_sfs->os_bfree;
1554 osfs->os_bavail = lov_sfs->os_bavail;
1557 osfs->os_bfree += lov_sfs->os_bfree;
1558 osfs->os_bavail += lov_sfs->os_bavail;
1560 osfs->os_blocks += lov_sfs->os_blocks;
1561 /* XXX not sure about this one - depends on policy.
1562 * - could be minimum if we always stripe on all OBDs
1563 * (but that would be wrong for any other policy,
1564 * if one of the OBDs has no more objects left)
1565 * - could be sum if we stripe whole objects
1566 * - could be average, just to give a nice number
1568 * To give a "reasonable" (if not wholly accurate)
1569 * number, we divide the total number of free objects
1570 * by expected stripe count (watch out for overflow).
1572 LOV_SUM_MAX(osfs->os_files, lov_sfs->os_files);
1573 LOV_SUM_MAX(osfs->os_ffree, lov_sfs->os_ffree);
1577 /* The callback for osc_statfs_async that finilizes a request info when a
1578 * response is recieved. */
1579 static int cb_statfs_update(struct obd_info *oinfo, int rc)
1581 struct lov_request *lovreq;
1582 struct obd_statfs *osfs, *lov_sfs;
1583 struct obd_device *obd;
1584 struct lov_obd *lov;
1588 lovreq = container_of(oinfo, struct lov_request, rq_oi);
1589 lov = &lovreq->rq_rqset->set_obd->u.lov;
1590 obd = class_exp2obd(lov->lov_tgts[lovreq->rq_idx]->ltd_exp);
1592 osfs = lovreq->rq_rqset->set_oi->oi_osfs;
1593 lov_sfs = oinfo->oi_osfs;
1595 success = lovreq->rq_rqset->set_success;
1597 /* XXX: the same is done in lov_update_common_set, however
1598 lovset->set_exp is not initialized. */
1599 lov_update_set(lovreq->rq_rqset, lovreq, rc);
1601 if (rc && !(lov->lov_tgts[lovreq->rq_idx] &&
1602 lov->lov_tgts[lovreq->rq_idx]->ltd_active))
1607 spin_lock(&obd->obd_osfs_lock);
1608 memcpy(&obd->obd_osfs, lov_sfs, sizeof(*lov_sfs));
1609 if ((oinfo->oi_flags & OBD_STATFS_FROM_CACHE) == 0)
1610 obd->obd_osfs_age = cfs_time_current_64();
1611 spin_unlock(&obd->obd_osfs_lock);
1613 lov_update_statfs(osfs, lov_sfs, success);
1619 int lov_prep_statfs_set(struct obd_device *obd, struct obd_info *oinfo,
1620 struct lov_request_set **reqset)
1622 struct lov_request_set *set;
1623 struct lov_obd *lov = &obd->u.lov;
1627 OBD_ALLOC(set, sizeof(*set));
1633 set->set_oi = oinfo;
1635 /* We only get block data from the OBD */
1636 for (i = 0; i < lov->desc.ld_tgt_count; i++) {
1637 struct lov_request *req;
1639 if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_active) {
1640 CDEBUG(D_HA, "lov idx %d inactive\n", i);
1644 OBD_ALLOC(req, sizeof(*req));
1646 GOTO(out_set, rc = -ENOMEM);
1648 OBD_ALLOC(req->rq_oi.oi_osfs, sizeof(*req->rq_oi.oi_osfs));
1649 if (req->rq_oi.oi_osfs == NULL) {
1650 OBD_FREE(req, sizeof(*req));
1651 GOTO(out_set, rc = -ENOMEM);
1655 req->rq_oi.oi_cb_up = cb_statfs_update;
1656 req->rq_oi.oi_flags = oinfo->oi_flags;
1657 req->rq_rqset = set;
1659 lov_set_add_req(req, set);
1661 if (!set->set_count)
1662 GOTO(out_set, rc = -EIO);
1666 lov_fini_statfs_set(set);