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 (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
32 * Copyright (c) 2011 Whamcloud, Inc.
36 * This file is part of Lustre, http://www.lustre.org/
37 * Lustre is a trademark of Sun Microsystems, Inc.
41 # define EXPORT_SYMTAB
43 #define DEBUG_SUBSYSTEM S_LOV
46 #include <libcfs/libcfs.h>
48 #include <liblustre.h>
51 #include <obd_class.h>
53 #include <lustre/lustre_idl.h>
55 #include "lov_internal.h"
57 static void lov_init_set(struct lov_request_set *set)
60 cfs_atomic_set(&set->set_completes, 0);
61 cfs_atomic_set(&set->set_success, 0);
63 CFS_INIT_LIST_HEAD(&set->set_list);
64 cfs_atomic_set(&set->set_refcount, 1);
65 cfs_waitq_init(&set->set_waitq);
66 cfs_spin_lock_init(&set->set_lock);
69 void lov_finish_set(struct lov_request_set *set)
75 cfs_list_for_each_safe(pos, n, &set->set_list) {
76 struct lov_request *req = cfs_list_entry(pos,
79 cfs_list_del_init(&req->rq_link);
82 OBDO_FREE(req->rq_oi.oi_oa);
84 OBD_FREE_LARGE(req->rq_oi.oi_md, req->rq_buflen);
85 if (req->rq_oi.oi_osfs)
86 OBD_FREE(req->rq_oi.oi_osfs,
87 sizeof(*req->rq_oi.oi_osfs));
88 OBD_FREE(req, sizeof(*req));
92 int len = set->set_oabufs * sizeof(*set->set_pga);
93 OBD_FREE_LARGE(set->set_pga, len);
96 lov_llh_put(set->set_lockh);
98 OBD_FREE(set, sizeof(*set));
102 int lov_finished_set(struct lov_request_set *set)
104 int completes = cfs_atomic_read(&set->set_completes);
106 CDEBUG(D_INFO, "check set %d/%d\n", completes,
108 return completes == set->set_count;
111 void lov_update_set(struct lov_request_set *set,
112 struct lov_request *req, int rc)
114 req->rq_complete = 1;
117 cfs_atomic_inc(&set->set_completes);
119 cfs_atomic_inc(&set->set_success);
121 cfs_waitq_signal(&set->set_waitq);
124 int lov_update_common_set(struct lov_request_set *set,
125 struct lov_request *req, int rc)
127 struct lov_obd *lov = &set->set_exp->exp_obd->u.lov;
130 lov_update_set(set, req, rc);
132 /* grace error on inactive ost */
133 if (rc && !(lov->lov_tgts[req->rq_idx] &&
134 lov->lov_tgts[req->rq_idx]->ltd_active))
137 /* FIXME in raid1 regime, should return 0 */
141 void lov_set_add_req(struct lov_request *req, struct lov_request_set *set)
143 cfs_list_add_tail(&req->rq_link, &set->set_list);
148 extern void osc_update_enqueue(struct lustre_handle *lov_lockhp,
149 struct lov_oinfo *loi, int flags,
150 struct ost_lvb *lvb, __u32 mode, int rc);
152 static int lov_update_enqueue_lov(struct obd_export *exp,
153 struct lustre_handle *lov_lockhp,
154 struct lov_oinfo *loi, int flags, int idx,
157 struct lov_obd *lov = &exp->exp_obd->u.lov;
159 if (rc != ELDLM_OK &&
160 !(rc == ELDLM_LOCK_ABORTED && (flags & LDLM_FL_HAS_INTENT))) {
161 memset(lov_lockhp, 0, sizeof(*lov_lockhp));
162 if (lov->lov_tgts[idx] && lov->lov_tgts[idx]->ltd_active) {
163 /* -EUSERS used by OST to report file contention */
164 if (rc != -EINTR && rc != -EUSERS)
165 CERROR("enqueue objid "LPX64" subobj "
166 LPX64" on OST idx %d: rc %d\n",
167 oid, loi->loi_id, loi->loi_ost_idx, rc);
174 int lov_update_enqueue_set(struct lov_request *req, __u32 mode, int rc)
176 struct lov_request_set *set = req->rq_rqset;
177 struct lustre_handle *lov_lockhp;
178 struct obd_info *oi = set->set_oi;
179 struct lov_oinfo *loi;
184 lov_lockhp = set->set_lockh->llh_handles + req->rq_stripe;
185 loi = oi->oi_md->lsm_oinfo[req->rq_stripe];
187 /* XXX LOV STACKING: OSC gets a copy, created in lov_prep_enqueue_set
188 * and that copy can be arbitrarily out of date.
190 * The LOV API is due for a serious rewriting anyways, and this
191 * can be addressed then. */
193 lov_stripe_lock(oi->oi_md);
194 osc_update_enqueue(lov_lockhp, loi, oi->oi_flags,
195 &req->rq_oi.oi_md->lsm_oinfo[0]->loi_lvb, mode, rc);
196 if (rc == ELDLM_LOCK_ABORTED && (oi->oi_flags & LDLM_FL_HAS_INTENT))
197 memset(lov_lockhp, 0, sizeof *lov_lockhp);
198 rc = lov_update_enqueue_lov(set->set_exp, lov_lockhp, loi, oi->oi_flags,
199 req->rq_idx, oi->oi_md->lsm_object_id, rc);
200 lov_stripe_unlock(oi->oi_md);
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(void *cookie, int rc)
208 struct obd_info *oinfo = cookie;
209 struct ldlm_enqueue_info *einfo;
210 struct lov_request *lovreq;
212 lovreq = container_of(oinfo, struct lov_request, rq_oi);
213 einfo = lovreq->rq_rqset->set_ei;
214 return lov_update_enqueue_set(lovreq, einfo->ei_mode, rc);
217 static int enqueue_done(struct lov_request_set *set, __u32 mode)
219 struct lov_request *req;
220 struct lov_obd *lov = &set->set_exp->exp_obd->u.lov;
221 int completes = cfs_atomic_read(&set->set_completes);
225 /* enqueue/match success, just return */
226 if (completes && completes == cfs_atomic_read(&set->set_success))
229 /* cancel enqueued/matched locks */
230 cfs_list_for_each_entry(req, &set->set_list, rq_link) {
231 struct lustre_handle *lov_lockhp;
233 if (!req->rq_complete || req->rq_rc)
236 lov_lockhp = set->set_lockh->llh_handles + req->rq_stripe;
238 if (!lustre_handle_is_used(lov_lockhp))
241 rc = obd_cancel(lov->lov_tgts[req->rq_idx]->ltd_exp,
242 req->rq_oi.oi_md, mode, lov_lockhp);
243 if (rc && lov->lov_tgts[req->rq_idx] &&
244 lov->lov_tgts[req->rq_idx]->ltd_active)
245 CERROR("cancelling obdjid "LPX64" on OST "
246 "idx %d error: rc = %d\n",
247 req->rq_oi.oi_md->lsm_object_id,
251 lov_llh_put(set->set_lockh);
255 int lov_fini_enqueue_set(struct lov_request_set *set, __u32 mode, int rc,
256 struct ptlrpc_request_set *rqset)
263 LASSERT(set->set_exp);
264 /* Do enqueue_done only for sync requests and if any request
268 cfs_atomic_set(&set->set_completes, 0);
269 ret = enqueue_done(set, mode);
270 } else if (set->set_lockh)
271 lov_llh_put(set->set_lockh);
275 RETURN(rc ? rc : ret);
278 int lov_prep_enqueue_set(struct obd_export *exp, struct obd_info *oinfo,
279 struct ldlm_enqueue_info *einfo,
280 struct lov_request_set **reqset)
282 struct lov_obd *lov = &exp->exp_obd->u.lov;
283 struct lov_request_set *set;
287 OBD_ALLOC(set, sizeof(*set));
295 set->set_lockh = lov_llh_new(oinfo->oi_md);
296 if (set->set_lockh == NULL)
297 GOTO(out_set, rc = -ENOMEM);
298 oinfo->oi_lockh->cookie = set->set_lockh->llh_handle.h_cookie;
300 for (i = 0; i < oinfo->oi_md->lsm_stripe_count; i++) {
301 struct lov_oinfo *loi;
302 struct lov_request *req;
305 loi = oinfo->oi_md->lsm_oinfo[i];
306 if (!lov_stripe_intersects(oinfo->oi_md, i,
307 oinfo->oi_policy.l_extent.start,
308 oinfo->oi_policy.l_extent.end,
312 if (!lov->lov_tgts[loi->loi_ost_idx] ||
313 !lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
314 CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
318 OBD_ALLOC(req, sizeof(*req));
320 GOTO(out_set, rc = -ENOMEM);
322 req->rq_buflen = sizeof(*req->rq_oi.oi_md) +
323 sizeof(struct lov_oinfo *) +
324 sizeof(struct lov_oinfo);
325 OBD_ALLOC_LARGE(req->rq_oi.oi_md, req->rq_buflen);
326 if (req->rq_oi.oi_md == NULL) {
327 OBD_FREE(req, sizeof(*req));
328 GOTO(out_set, rc = -ENOMEM);
330 req->rq_oi.oi_md->lsm_oinfo[0] =
331 ((void *)req->rq_oi.oi_md) + sizeof(*req->rq_oi.oi_md) +
332 sizeof(struct lov_oinfo *);
334 /* Set lov request specific parameters. */
335 req->rq_oi.oi_lockh = set->set_lockh->llh_handles + i;
336 req->rq_oi.oi_cb_up = cb_update_enqueue;
337 req->rq_oi.oi_flags = oinfo->oi_flags;
339 LASSERT(req->rq_oi.oi_lockh);
341 req->rq_oi.oi_policy.l_extent.gid =
342 oinfo->oi_policy.l_extent.gid;
343 req->rq_oi.oi_policy.l_extent.start = start;
344 req->rq_oi.oi_policy.l_extent.end = end;
346 req->rq_idx = loi->loi_ost_idx;
349 /* XXX LOV STACKING: submd should be from the subobj */
350 req->rq_oi.oi_md->lsm_object_id = loi->loi_id;
351 req->rq_oi.oi_md->lsm_object_seq = loi->loi_seq;
352 req->rq_oi.oi_md->lsm_stripe_count = 0;
353 req->rq_oi.oi_md->lsm_oinfo[0]->loi_kms_valid =
355 req->rq_oi.oi_md->lsm_oinfo[0]->loi_kms = loi->loi_kms;
356 req->rq_oi.oi_md->lsm_oinfo[0]->loi_lvb = loi->loi_lvb;
358 lov_set_add_req(req, set);
361 GOTO(out_set, rc = -EIO);
365 lov_fini_enqueue_set(set, einfo->ei_mode, rc, NULL);
369 int lov_fini_match_set(struct lov_request_set *set, __u32 mode, int flags)
376 LASSERT(set->set_exp);
377 rc = enqueue_done(set, mode);
378 if ((set->set_count == cfs_atomic_read(&set->set_success)) &&
379 (flags & LDLM_FL_TEST_LOCK))
380 lov_llh_put(set->set_lockh);
387 int lov_prep_match_set(struct obd_export *exp, struct obd_info *oinfo,
388 struct lov_stripe_md *lsm, ldlm_policy_data_t *policy,
389 __u32 mode, struct lustre_handle *lockh,
390 struct lov_request_set **reqset)
392 struct lov_obd *lov = &exp->exp_obd->u.lov;
393 struct lov_request_set *set;
397 OBD_ALLOC(set, sizeof(*set));
404 set->set_oi->oi_md = lsm;
405 set->set_lockh = lov_llh_new(lsm);
406 if (set->set_lockh == NULL)
407 GOTO(out_set, rc = -ENOMEM);
408 lockh->cookie = set->set_lockh->llh_handle.h_cookie;
410 for (i = 0; i < lsm->lsm_stripe_count; i++){
411 struct lov_oinfo *loi;
412 struct lov_request *req;
415 loi = lsm->lsm_oinfo[i];
416 if (!lov_stripe_intersects(lsm, i, policy->l_extent.start,
417 policy->l_extent.end, &start, &end))
420 /* FIXME raid1 should grace this error */
421 if (!lov->lov_tgts[loi->loi_ost_idx] ||
422 !lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
423 CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
424 GOTO(out_set, rc = -EIO);
427 OBD_ALLOC(req, sizeof(*req));
429 GOTO(out_set, rc = -ENOMEM);
431 req->rq_buflen = sizeof(*req->rq_oi.oi_md);
432 OBD_ALLOC_LARGE(req->rq_oi.oi_md, req->rq_buflen);
433 if (req->rq_oi.oi_md == NULL) {
434 OBD_FREE(req, sizeof(*req));
435 GOTO(out_set, rc = -ENOMEM);
438 req->rq_oi.oi_policy.l_extent.start = start;
439 req->rq_oi.oi_policy.l_extent.end = end;
440 req->rq_oi.oi_policy.l_extent.gid = policy->l_extent.gid;
442 req->rq_idx = loi->loi_ost_idx;
445 /* XXX LOV STACKING: submd should be from the subobj */
446 req->rq_oi.oi_md->lsm_object_id = loi->loi_id;
447 req->rq_oi.oi_md->lsm_object_seq = loi->loi_seq;
448 req->rq_oi.oi_md->lsm_stripe_count = 0;
450 lov_set_add_req(req, set);
453 GOTO(out_set, rc = -EIO);
457 lov_fini_match_set(set, mode, 0);
461 int lov_fini_cancel_set(struct lov_request_set *set)
469 LASSERT(set->set_exp);
471 lov_llh_put(set->set_lockh);
478 int lov_prep_cancel_set(struct obd_export *exp, struct obd_info *oinfo,
479 struct lov_stripe_md *lsm, __u32 mode,
480 struct lustre_handle *lockh,
481 struct lov_request_set **reqset)
483 struct lov_request_set *set;
487 OBD_ALLOC(set, sizeof(*set));
494 set->set_oi->oi_md = lsm;
495 set->set_lockh = lov_handle2llh(lockh);
496 if (set->set_lockh == NULL) {
497 CERROR("LOV: invalid lov lock handle %p\n", lockh);
498 GOTO(out_set, rc = -EINVAL);
500 lockh->cookie = set->set_lockh->llh_handle.h_cookie;
502 for (i = 0; i < lsm->lsm_stripe_count; i++){
503 struct lov_request *req;
504 struct lustre_handle *lov_lockhp;
505 struct lov_oinfo *loi = lsm->lsm_oinfo[i];
507 lov_lockhp = set->set_lockh->llh_handles + i;
508 if (!lustre_handle_is_used(lov_lockhp)) {
509 CDEBUG(D_INFO, "lov idx %d subobj "LPX64" no lock\n",
510 loi->loi_ost_idx, loi->loi_id);
514 OBD_ALLOC(req, sizeof(*req));
516 GOTO(out_set, rc = -ENOMEM);
518 req->rq_buflen = sizeof(*req->rq_oi.oi_md);
519 OBD_ALLOC_LARGE(req->rq_oi.oi_md, req->rq_buflen);
520 if (req->rq_oi.oi_md == NULL) {
521 OBD_FREE(req, sizeof(*req));
522 GOTO(out_set, rc = -ENOMEM);
525 req->rq_idx = loi->loi_ost_idx;
528 /* XXX LOV STACKING: submd should be from the subobj */
529 req->rq_oi.oi_md->lsm_object_id = loi->loi_id;
530 req->rq_oi.oi_md->lsm_object_seq = loi->loi_seq;
531 req->rq_oi.oi_md->lsm_stripe_count = 0;
533 lov_set_add_req(req, set);
536 GOTO(out_set, rc = -EIO);
540 lov_fini_cancel_set(set);
544 static int lov_update_create_set(struct lov_request_set *set,
545 struct lov_request *req, int rc)
547 struct obd_trans_info *oti = set->set_oti;
548 struct lov_stripe_md *lsm = set->set_oi->oi_md;
549 struct lov_oinfo *loi;
550 struct lov_obd *lov = &set->set_exp->exp_obd->u.lov;
553 if (rc && lov->lov_tgts[req->rq_idx] &&
554 lov->lov_tgts[req->rq_idx]->ltd_active) {
555 CERROR("error creating fid "LPX64" sub-object"
556 " on OST idx %d/%d: rc = %d\n",
557 set->set_oi->oi_oa->o_id, req->rq_idx,
558 lsm->lsm_stripe_count, rc);
560 CERROR("obd_create returned invalid err %d\n", rc);
565 cfs_spin_lock(&set->set_lock);
566 req->rq_stripe = cfs_atomic_read(&set->set_success);
567 loi = lsm->lsm_oinfo[req->rq_stripe];
571 lov_update_set(set, req, rc);
572 cfs_spin_unlock(&set->set_lock);
576 loi->loi_id = req->rq_oi.oi_oa->o_id;
577 loi->loi_seq = req->rq_oi.oi_oa->o_seq;
578 loi->loi_ost_idx = req->rq_idx;
581 if (oti && set->set_cookies)
582 ++oti->oti_logcookies;
583 if (req->rq_oi.oi_oa->o_valid & OBD_MD_FLCOOKIE)
584 set->set_cookie_sent++;
586 lov_update_set(set, req, rc);
587 cfs_spin_unlock(&set->set_lock);
589 CDEBUG(D_INODE, "objid "LPX64" has subobj "LPX64"/"LPU64" at idx %d\n",
590 lsm->lsm_object_id, loi->loi_id, loi->loi_id, req->rq_idx);
594 static int create_done(struct obd_export *exp, struct lov_request_set *set,
595 struct lov_stripe_md **lsmp)
597 struct lov_obd *lov = &exp->exp_obd->u.lov;
598 struct obd_trans_info *oti = set->set_oti;
599 struct obdo *src_oa = set->set_oi->oi_oa;
600 struct lov_request *req;
601 struct obdo *ret_oa = NULL;
602 int success, attrset = 0, rc = 0;
605 LASSERT(cfs_atomic_read(&set->set_completes));
607 /* try alloc objects on other osts if osc_create fails for
608 * exceptions: RPC failure, ENOSPC, etc */
609 if (set->set_count != cfs_atomic_read(&set->set_success)) {
610 cfs_list_for_each_entry (req, &set->set_list, rq_link) {
614 cfs_atomic_dec(&set->set_completes);
615 req->rq_complete = 0;
617 rc = qos_remedy_create(set, req);
618 lov_update_create_set(set, req, rc);
622 success = cfs_atomic_read(&set->set_success);
623 /* no successful creates */
627 if (set->set_count != success) {
628 set->set_count = success;
634 GOTO(cleanup, rc = -ENOMEM);
636 cfs_list_for_each_entry(req, &set->set_list, rq_link) {
637 if (!req->rq_complete || req->rq_rc)
639 lov_merge_attrs(ret_oa, req->rq_oi.oi_oa,
640 req->rq_oi.oi_oa->o_valid, set->set_oi->oi_md,
641 req->rq_stripe, &attrset);
643 if (src_oa->o_valid & OBD_MD_FLSIZE &&
644 ret_oa->o_size != src_oa->o_size) {
645 CERROR("original size "LPU64" isn't new object size "LPU64"\n",
646 src_oa->o_size, ret_oa->o_size);
649 ret_oa->o_id = src_oa->o_id;
650 ret_oa->o_seq = src_oa->o_seq;
651 ret_oa->o_valid |= OBD_MD_FLID | OBD_MD_FLGROUP;
652 memcpy(src_oa, ret_oa, sizeof(*src_oa));
655 *lsmp = set->set_oi->oi_md;
659 cfs_list_for_each_entry(req, &set->set_list, rq_link) {
660 struct obd_export *sub_exp;
663 if (!req->rq_complete || req->rq_rc)
666 sub_exp = lov->lov_tgts[req->rq_idx]->ltd_exp;
667 err = obd_destroy(sub_exp, req->rq_oi.oi_oa, NULL, oti, NULL,
670 CERROR("Failed to uncreate objid "LPX64" subobj "
671 LPX64" on OST idx %d: rc = %d\n",
672 src_oa->o_id, req->rq_oi.oi_oa->o_id,
676 obd_free_memmd(exp, &set->set_oi->oi_md);
678 if (oti && set->set_cookies) {
679 oti->oti_logcookies = set->set_cookies;
680 if (!set->set_cookie_sent) {
681 oti_free_cookies(oti);
682 src_oa->o_valid &= ~OBD_MD_FLCOOKIE;
684 src_oa->o_valid |= OBD_MD_FLCOOKIE;
690 int lov_fini_create_set(struct lov_request_set *set,struct lov_stripe_md **lsmp)
697 LASSERT(set->set_exp);
698 if (cfs_atomic_read(&set->set_completes))
699 rc = create_done(set->set_exp, set, lsmp);
705 int cb_create_update(void *cookie, int rc)
707 struct obd_info *oinfo = cookie;
708 struct lov_request *lovreq;
710 lovreq = container_of(oinfo, struct lov_request, rq_oi);
712 if (CFS_FAIL_CHECK(OBD_FAIL_MDS_OSC_CREATE_FAIL))
713 if (lovreq->rq_idx == cfs_fail_val)
716 rc= lov_update_create_set(lovreq->rq_rqset, lovreq, rc);
717 if (lov_finished_set(lovreq->rq_rqset))
718 lov_put_reqset(lovreq->rq_rqset);
722 int lov_prep_create_set(struct obd_export *exp, struct obd_info *oinfo,
723 struct lov_stripe_md **lsmp, struct obdo *src_oa,
724 struct obd_trans_info *oti,
725 struct lov_request_set **reqset)
727 struct lov_request_set *set;
731 OBD_ALLOC(set, sizeof(*set));
738 set->set_oi->oi_md = *lsmp;
739 set->set_oi->oi_oa = src_oa;
743 rc = qos_prep_create(exp, set);
744 /* qos_shrink_lsm() may have allocated a new lsm */
745 *lsmp = oinfo->oi_md;
747 lov_fini_create_set(set, lsmp);
755 static int common_attr_done(struct lov_request_set *set)
758 struct lov_request *req;
760 int rc = 0, attrset = 0;
763 LASSERT(set->set_oi != NULL);
765 if (set->set_oi->oi_oa == NULL)
768 if (!cfs_atomic_read(&set->set_success))
773 GOTO(out, rc = -ENOMEM);
775 cfs_list_for_each (pos, &set->set_list) {
776 req = cfs_list_entry(pos, struct lov_request, rq_link);
778 if (!req->rq_complete || req->rq_rc)
780 if (req->rq_oi.oi_oa->o_valid == 0) /* inactive stripe */
782 lov_merge_attrs(tmp_oa, req->rq_oi.oi_oa,
783 req->rq_oi.oi_oa->o_valid,
784 set->set_oi->oi_md, req->rq_stripe, &attrset);
787 CERROR("No stripes had valid attrs\n");
790 if ((set->set_oi->oi_oa->o_valid & OBD_MD_FLEPOCH) &&
791 (set->set_oi->oi_md->lsm_stripe_count != attrset)) {
792 /* When we take attributes of some epoch, we require all the
793 * ost to be active. */
794 CERROR("Not all the stripes had valid attrs\n");
795 GOTO(out, rc = -EIO);
798 tmp_oa->o_id = set->set_oi->oi_oa->o_id;
799 memcpy(set->set_oi->oi_oa, tmp_oa, sizeof(*set->set_oi->oi_oa));
807 static int brw_done(struct lov_request_set *set)
809 struct lov_stripe_md *lsm = set->set_oi->oi_md;
810 struct lov_oinfo *loi = NULL;
812 struct lov_request *req;
815 cfs_list_for_each (pos, &set->set_list) {
816 req = cfs_list_entry(pos, struct lov_request, rq_link);
818 if (!req->rq_complete || req->rq_rc)
821 loi = lsm->lsm_oinfo[req->rq_stripe];
823 if (req->rq_oi.oi_oa->o_valid & OBD_MD_FLBLOCKS)
824 loi->loi_lvb.lvb_blocks = req->rq_oi.oi_oa->o_blocks;
830 int lov_fini_brw_set(struct lov_request_set *set)
837 LASSERT(set->set_exp);
838 if (cfs_atomic_read(&set->set_completes)) {
840 /* FIXME update qos data here */
847 int lov_prep_brw_set(struct obd_export *exp, struct obd_info *oinfo,
848 obd_count oa_bufs, struct brw_page *pga,
849 struct obd_trans_info *oti,
850 struct lov_request_set **reqset)
857 struct lov_request_set *set;
858 struct lov_obd *lov = &exp->exp_obd->u.lov;
859 int rc = 0, i, shift;
862 OBD_ALLOC(set, sizeof(*set));
870 set->set_oabufs = oa_bufs;
871 OBD_ALLOC_LARGE(set->set_pga, oa_bufs * sizeof(*set->set_pga));
873 GOTO(out, rc = -ENOMEM);
875 OBD_ALLOC_LARGE(info, sizeof(*info) * oinfo->oi_md->lsm_stripe_count);
877 GOTO(out, rc = -ENOMEM);
879 /* calculate the page count for each stripe */
880 for (i = 0; i < oa_bufs; i++) {
881 int stripe = lov_stripe_number(oinfo->oi_md, pga[i].off);
882 info[stripe].count++;
885 /* alloc and initialize lov request */
887 for (i = 0; i < oinfo->oi_md->lsm_stripe_count; i++){
888 struct lov_oinfo *loi = NULL;
889 struct lov_request *req;
891 if (info[i].count == 0)
894 loi = oinfo->oi_md->lsm_oinfo[i];
895 if (!lov->lov_tgts[loi->loi_ost_idx] ||
896 !lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
897 CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
898 GOTO(out, rc = -EIO);
901 OBD_ALLOC(req, sizeof(*req));
903 GOTO(out, rc = -ENOMEM);
905 OBDO_ALLOC(req->rq_oi.oi_oa);
906 if (req->rq_oi.oi_oa == NULL) {
907 OBD_FREE(req, sizeof(*req));
908 GOTO(out, rc = -ENOMEM);
912 memcpy(req->rq_oi.oi_oa, oinfo->oi_oa,
913 sizeof(*req->rq_oi.oi_oa));
915 req->rq_oi.oi_oa->o_id = loi->loi_id;
916 req->rq_oi.oi_oa->o_seq = loi->loi_seq;
917 req->rq_oi.oi_oa->o_stripe_idx = i;
919 req->rq_buflen = sizeof(*req->rq_oi.oi_md);
920 OBD_ALLOC_LARGE(req->rq_oi.oi_md, req->rq_buflen);
921 if (req->rq_oi.oi_md == NULL) {
922 OBDO_FREE(req->rq_oi.oi_oa);
923 OBD_FREE(req, sizeof(*req));
924 GOTO(out, rc = -ENOMEM);
927 req->rq_idx = loi->loi_ost_idx;
930 /* XXX LOV STACKING */
931 req->rq_oi.oi_md->lsm_object_id = loi->loi_id;
932 req->rq_oi.oi_md->lsm_object_seq = loi->loi_seq;
933 req->rq_oabufs = info[i].count;
934 req->rq_pgaidx = shift;
935 shift += req->rq_oabufs;
937 /* remember the index for sort brw_page array */
938 info[i].index = req->rq_pgaidx;
940 req->rq_oi.oi_capa = oinfo->oi_capa;
942 lov_set_add_req(req, set);
945 GOTO(out, rc = -EIO);
947 /* rotate & sort the brw_page array */
948 for (i = 0; i < oa_bufs; i++) {
949 int stripe = lov_stripe_number(oinfo->oi_md, pga[i].off);
951 shift = info[stripe].index + info[stripe].off;
952 LASSERT(shift < oa_bufs);
953 set->set_pga[shift] = pga[i];
954 lov_stripe_offset(oinfo->oi_md, pga[i].off, stripe,
955 &set->set_pga[shift].off);
961 sizeof(*info) * oinfo->oi_md->lsm_stripe_count);
966 lov_fini_brw_set(set);
971 int lov_fini_getattr_set(struct lov_request_set *set)
978 LASSERT(set->set_exp);
979 if (cfs_atomic_read(&set->set_completes))
980 rc = common_attr_done(set);
987 /* The callback for osc_getattr_async that finilizes a request info when a
988 * response is received. */
989 static int cb_getattr_update(void *cookie, int rc)
991 struct obd_info *oinfo = cookie;
992 struct lov_request *lovreq;
993 lovreq = container_of(oinfo, struct lov_request, rq_oi);
994 return lov_update_common_set(lovreq->rq_rqset, lovreq, rc);
997 int lov_prep_getattr_set(struct obd_export *exp, struct obd_info *oinfo,
998 struct lov_request_set **reqset)
1000 struct lov_request_set *set;
1001 struct lov_obd *lov = &exp->exp_obd->u.lov;
1005 OBD_ALLOC(set, sizeof(*set));
1011 set->set_oi = oinfo;
1013 for (i = 0; i < oinfo->oi_md->lsm_stripe_count; i++) {
1014 struct lov_oinfo *loi;
1015 struct lov_request *req;
1017 loi = oinfo->oi_md->lsm_oinfo[i];
1018 if (!lov->lov_tgts[loi->loi_ost_idx] ||
1019 !lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
1020 CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
1021 if (oinfo->oi_oa->o_valid & OBD_MD_FLEPOCH)
1022 /* SOM requires all the OSTs to be active. */
1023 GOTO(out_set, rc = -EIO);
1027 OBD_ALLOC(req, sizeof(*req));
1029 GOTO(out_set, rc = -ENOMEM);
1032 req->rq_idx = loi->loi_ost_idx;
1034 OBDO_ALLOC(req->rq_oi.oi_oa);
1035 if (req->rq_oi.oi_oa == NULL) {
1036 OBD_FREE(req, sizeof(*req));
1037 GOTO(out_set, rc = -ENOMEM);
1039 memcpy(req->rq_oi.oi_oa, oinfo->oi_oa,
1040 sizeof(*req->rq_oi.oi_oa));
1041 req->rq_oi.oi_oa->o_id = loi->loi_id;
1042 req->rq_oi.oi_oa->o_seq = loi->loi_seq;
1043 req->rq_oi.oi_cb_up = cb_getattr_update;
1044 req->rq_oi.oi_capa = oinfo->oi_capa;
1046 lov_set_add_req(req, set);
1048 if (!set->set_count)
1049 GOTO(out_set, rc = -EIO);
1053 lov_fini_getattr_set(set);
1057 int lov_fini_destroy_set(struct lov_request_set *set)
1063 LASSERT(set->set_exp);
1064 if (cfs_atomic_read(&set->set_completes)) {
1065 /* FIXME update qos data here */
1068 lov_put_reqset(set);
1073 int lov_prep_destroy_set(struct obd_export *exp, struct obd_info *oinfo,
1074 struct obdo *src_oa, struct lov_stripe_md *lsm,
1075 struct obd_trans_info *oti,
1076 struct lov_request_set **reqset)
1078 struct lov_request_set *set;
1079 struct lov_obd *lov = &exp->exp_obd->u.lov;
1083 OBD_ALLOC(set, sizeof(*set));
1089 set->set_oi = oinfo;
1090 set->set_oi->oi_md = lsm;
1091 set->set_oi->oi_oa = src_oa;
1093 if (oti != NULL && src_oa->o_valid & OBD_MD_FLCOOKIE)
1094 set->set_cookies = oti->oti_logcookies;
1096 for (i = 0; i < lsm->lsm_stripe_count; i++) {
1097 struct lov_oinfo *loi;
1098 struct lov_request *req;
1100 loi = lsm->lsm_oinfo[i];
1101 if (!lov->lov_tgts[loi->loi_ost_idx] ||
1102 !lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
1103 CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
1107 OBD_ALLOC(req, sizeof(*req));
1109 GOTO(out_set, rc = -ENOMEM);
1112 req->rq_idx = loi->loi_ost_idx;
1114 OBDO_ALLOC(req->rq_oi.oi_oa);
1115 if (req->rq_oi.oi_oa == NULL) {
1116 OBD_FREE(req, sizeof(*req));
1117 GOTO(out_set, rc = -ENOMEM);
1119 memcpy(req->rq_oi.oi_oa, src_oa, sizeof(*req->rq_oi.oi_oa));
1120 req->rq_oi.oi_oa->o_id = loi->loi_id;
1121 req->rq_oi.oi_oa->o_seq = loi->loi_seq;
1122 lov_set_add_req(req, set);
1124 if (!set->set_count)
1125 GOTO(out_set, rc = -EIO);
1129 lov_fini_destroy_set(set);
1133 int lov_fini_setattr_set(struct lov_request_set *set)
1140 LASSERT(set->set_exp);
1141 if (cfs_atomic_read(&set->set_completes)) {
1142 rc = common_attr_done(set);
1143 /* FIXME update qos data here */
1146 lov_put_reqset(set);
1150 int lov_update_setattr_set(struct lov_request_set *set,
1151 struct lov_request *req, int rc)
1153 struct lov_obd *lov = &req->rq_rqset->set_exp->exp_obd->u.lov;
1154 struct lov_stripe_md *lsm = req->rq_rqset->set_oi->oi_md;
1157 lov_update_set(set, req, rc);
1159 /* grace error on inactive ost */
1160 if (rc && !(lov->lov_tgts[req->rq_idx] &&
1161 lov->lov_tgts[req->rq_idx]->ltd_active))
1165 if (req->rq_oi.oi_oa->o_valid & OBD_MD_FLCTIME)
1166 lsm->lsm_oinfo[req->rq_stripe]->loi_lvb.lvb_ctime =
1167 req->rq_oi.oi_oa->o_ctime;
1168 if (req->rq_oi.oi_oa->o_valid & OBD_MD_FLMTIME)
1169 lsm->lsm_oinfo[req->rq_stripe]->loi_lvb.lvb_mtime =
1170 req->rq_oi.oi_oa->o_mtime;
1171 if (req->rq_oi.oi_oa->o_valid & OBD_MD_FLATIME)
1172 lsm->lsm_oinfo[req->rq_stripe]->loi_lvb.lvb_atime =
1173 req->rq_oi.oi_oa->o_atime;
1179 /* The callback for osc_setattr_async that finilizes a request info when a
1180 * response is received. */
1181 static int cb_setattr_update(void *cookie, int rc)
1183 struct obd_info *oinfo = cookie;
1184 struct lov_request *lovreq;
1185 lovreq = container_of(oinfo, struct lov_request, rq_oi);
1186 return lov_update_setattr_set(lovreq->rq_rqset, lovreq, rc);
1189 int lov_prep_setattr_set(struct obd_export *exp, struct obd_info *oinfo,
1190 struct obd_trans_info *oti,
1191 struct lov_request_set **reqset)
1193 struct lov_request_set *set;
1194 struct lov_obd *lov = &exp->exp_obd->u.lov;
1198 OBD_ALLOC(set, sizeof(*set));
1205 set->set_oi = oinfo;
1206 if (oti != NULL && oinfo->oi_oa->o_valid & OBD_MD_FLCOOKIE)
1207 set->set_cookies = oti->oti_logcookies;
1209 for (i = 0; i < oinfo->oi_md->lsm_stripe_count; i++) {
1210 struct lov_oinfo *loi = oinfo->oi_md->lsm_oinfo[i];
1211 struct lov_request *req;
1213 if (!lov->lov_tgts[loi->loi_ost_idx] ||
1214 !lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
1215 CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
1219 OBD_ALLOC(req, sizeof(*req));
1221 GOTO(out_set, rc = -ENOMEM);
1223 req->rq_idx = loi->loi_ost_idx;
1225 OBDO_ALLOC(req->rq_oi.oi_oa);
1226 if (req->rq_oi.oi_oa == NULL) {
1227 OBD_FREE(req, sizeof(*req));
1228 GOTO(out_set, rc = -ENOMEM);
1230 memcpy(req->rq_oi.oi_oa, oinfo->oi_oa,
1231 sizeof(*req->rq_oi.oi_oa));
1232 req->rq_oi.oi_oa->o_id = loi->loi_id;
1233 req->rq_oi.oi_oa->o_seq= loi->loi_seq;
1234 req->rq_oi.oi_oa->o_stripe_idx = i;
1235 req->rq_oi.oi_cb_up = cb_setattr_update;
1236 req->rq_oi.oi_capa = oinfo->oi_capa;
1238 if (oinfo->oi_oa->o_valid & OBD_MD_FLSIZE) {
1239 int off = lov_stripe_offset(oinfo->oi_md,
1240 oinfo->oi_oa->o_size, i,
1241 &req->rq_oi.oi_oa->o_size);
1243 if (off < 0 && req->rq_oi.oi_oa->o_size)
1244 req->rq_oi.oi_oa->o_size--;
1246 CDEBUG(D_INODE, "stripe %d has size "LPU64"/"LPU64"\n",
1247 i, req->rq_oi.oi_oa->o_size,
1248 oinfo->oi_oa->o_size);
1250 lov_set_add_req(req, set);
1252 if (!set->set_count)
1253 GOTO(out_set, rc = -EIO);
1257 lov_fini_setattr_set(set);
1261 int lov_fini_punch_set(struct lov_request_set *set)
1268 LASSERT(set->set_exp);
1269 if (cfs_atomic_read(&set->set_completes)) {
1271 /* FIXME update qos data here */
1272 if (cfs_atomic_read(&set->set_success))
1273 rc = common_attr_done(set);
1276 lov_put_reqset(set);
1281 int lov_update_punch_set(struct lov_request_set *set,
1282 struct lov_request *req, int rc)
1284 struct lov_obd *lov = &req->rq_rqset->set_exp->exp_obd->u.lov;
1285 struct lov_stripe_md *lsm = req->rq_rqset->set_oi->oi_md;
1288 lov_update_set(set, req, rc);
1290 /* grace error on inactive ost */
1291 if (rc && !lov->lov_tgts[req->rq_idx]->ltd_active)
1295 lov_stripe_lock(lsm);
1296 if (req->rq_oi.oi_oa->o_valid & OBD_MD_FLBLOCKS) {
1297 lsm->lsm_oinfo[req->rq_stripe]->loi_lvb.lvb_blocks =
1298 req->rq_oi.oi_oa->o_blocks;
1301 /* Do we need to update lvb_size here? It needn't because
1302 * it have been done in ll_truncate(). -jay */
1303 lov_stripe_unlock(lsm);
1309 /* The callback for osc_punch that finilizes a request info when a response
1311 static int cb_update_punch(void *cookie, int rc)
1313 struct obd_info *oinfo = cookie;
1314 struct lov_request *lovreq;
1315 lovreq = container_of(oinfo, struct lov_request, rq_oi);
1316 return lov_update_punch_set(lovreq->rq_rqset, lovreq, rc);
1319 int lov_prep_punch_set(struct obd_export *exp, struct obd_info *oinfo,
1320 struct obd_trans_info *oti,
1321 struct lov_request_set **reqset)
1323 struct lov_request_set *set;
1324 struct lov_obd *lov = &exp->exp_obd->u.lov;
1328 OBD_ALLOC(set, sizeof(*set));
1333 set->set_oi = oinfo;
1336 for (i = 0; i < oinfo->oi_md->lsm_stripe_count; i++) {
1337 struct lov_oinfo *loi = oinfo->oi_md->lsm_oinfo[i];
1338 struct lov_request *req;
1341 if (!lov_stripe_intersects(oinfo->oi_md, i,
1342 oinfo->oi_policy.l_extent.start,
1343 oinfo->oi_policy.l_extent.end,
1347 if (!lov->lov_tgts[loi->loi_ost_idx] ||
1348 !lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
1349 CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
1350 GOTO(out_set, rc = -EIO);
1353 OBD_ALLOC(req, sizeof(*req));
1355 GOTO(out_set, rc = -ENOMEM);
1357 req->rq_idx = loi->loi_ost_idx;
1359 OBDO_ALLOC(req->rq_oi.oi_oa);
1360 if (req->rq_oi.oi_oa == NULL) {
1361 OBD_FREE(req, sizeof(*req));
1362 GOTO(out_set, rc = -ENOMEM);
1364 memcpy(req->rq_oi.oi_oa, oinfo->oi_oa,
1365 sizeof(*req->rq_oi.oi_oa));
1366 req->rq_oi.oi_oa->o_id = loi->loi_id;
1367 req->rq_oi.oi_oa->o_seq = loi->loi_seq;
1368 req->rq_oi.oi_oa->o_valid |= OBD_MD_FLGROUP;
1370 req->rq_oi.oi_oa->o_stripe_idx = i;
1371 req->rq_oi.oi_cb_up = cb_update_punch;
1373 req->rq_oi.oi_policy.l_extent.start = rs;
1374 req->rq_oi.oi_policy.l_extent.end = re;
1375 req->rq_oi.oi_policy.l_extent.gid = -1;
1377 req->rq_oi.oi_capa = oinfo->oi_capa;
1379 lov_set_add_req(req, set);
1381 if (!set->set_count)
1382 GOTO(out_set, rc = -EIO);
1386 lov_fini_punch_set(set);
1390 int lov_fini_sync_set(struct lov_request_set *set)
1397 LASSERT(set->set_exp);
1398 if (cfs_atomic_read(&set->set_completes)) {
1399 if (!cfs_atomic_read(&set->set_success))
1401 /* FIXME update qos data here */
1404 lov_put_reqset(set);
1409 /* The callback for osc_sync that finilizes a request info when a
1410 * response is recieved. */
1411 static int cb_sync_update(void *cookie, int rc)
1413 struct obd_info *oinfo = cookie;
1414 struct lov_request *lovreq;
1416 lovreq = container_of(oinfo, struct lov_request, rq_oi);
1417 return lov_update_common_set(lovreq->rq_rqset, lovreq, rc);
1420 int lov_prep_sync_set(struct obd_export *exp, struct obd_info *oinfo,
1421 obd_off start, obd_off end,
1422 struct lov_request_set **reqset)
1424 struct lov_request_set *set;
1425 struct lov_obd *lov = &exp->exp_obd->u.lov;
1435 set->set_oi = oinfo;
1437 for (i = 0; i < oinfo->oi_md->lsm_stripe_count; i++) {
1438 struct lov_oinfo *loi = oinfo->oi_md->lsm_oinfo[i];
1439 struct lov_request *req;
1442 if (!lov->lov_tgts[loi->loi_ost_idx] ||
1443 !lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
1444 CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
1448 if (!lov_stripe_intersects(oinfo->oi_md, i, start, end, &rs,
1454 GOTO(out_set, rc = -ENOMEM);
1456 req->rq_idx = loi->loi_ost_idx;
1458 OBDO_ALLOC(req->rq_oi.oi_oa);
1459 if (req->rq_oi.oi_oa == NULL) {
1460 OBD_FREE(req, sizeof(*req));
1461 GOTO(out_set, rc = -ENOMEM);
1463 *req->rq_oi.oi_oa = *oinfo->oi_oa;
1464 req->rq_oi.oi_oa->o_id = loi->loi_id;
1465 req->rq_oi.oi_oa->o_seq = loi->loi_seq;
1466 req->rq_oi.oi_oa->o_stripe_idx = i;
1468 req->rq_oi.oi_policy.l_extent.start = rs;
1469 req->rq_oi.oi_policy.l_extent.end = re;
1470 req->rq_oi.oi_policy.l_extent.gid = -1;
1471 req->rq_oi.oi_cb_up = cb_sync_update;
1473 lov_set_add_req(req, set);
1475 if (!set->set_count)
1476 GOTO(out_set, rc = -EIO);
1480 lov_fini_sync_set(set);
1484 #define LOV_U64_MAX ((__u64)~0ULL)
1485 #define LOV_SUM_MAX(tot, add) \
1487 if ((tot) + (add) < (tot)) \
1488 (tot) = LOV_U64_MAX; \
1493 int lov_fini_statfs(struct obd_device *obd, struct obd_statfs *osfs,int success)
1498 __u32 expected_stripes = lov_get_stripecnt(&obd->u.lov,
1500 if (osfs->os_files != LOV_U64_MAX)
1501 do_div(osfs->os_files, expected_stripes);
1502 if (osfs->os_ffree != LOV_U64_MAX)
1503 do_div(osfs->os_ffree, expected_stripes);
1505 cfs_spin_lock(&obd->obd_osfs_lock);
1506 memcpy(&obd->obd_osfs, osfs, sizeof(*osfs));
1507 obd->obd_osfs_age = cfs_time_current_64();
1508 cfs_spin_unlock(&obd->obd_osfs_lock);
1515 int lov_fini_statfs_set(struct lov_request_set *set)
1523 if (cfs_atomic_read(&set->set_completes)) {
1524 rc = lov_fini_statfs(set->set_obd, set->set_oi->oi_osfs,
1525 cfs_atomic_read(&set->set_success));
1527 lov_put_reqset(set);
1531 void lov_update_statfs(struct obd_statfs *osfs, struct obd_statfs *lov_sfs,
1534 int shift = 0, quit = 0;
1538 memcpy(osfs, lov_sfs, sizeof(*lov_sfs));
1540 if (osfs->os_bsize != lov_sfs->os_bsize) {
1541 /* assume all block sizes are always powers of 2 */
1542 /* get the bits difference */
1543 tmp = osfs->os_bsize | lov_sfs->os_bsize;
1544 for (shift = 0; shift <= 64; ++shift) {
1556 if (osfs->os_bsize < lov_sfs->os_bsize) {
1557 osfs->os_bsize = lov_sfs->os_bsize;
1559 osfs->os_bfree >>= shift;
1560 osfs->os_bavail >>= shift;
1561 osfs->os_blocks >>= shift;
1562 } else if (shift != 0) {
1563 lov_sfs->os_bfree >>= shift;
1564 lov_sfs->os_bavail >>= shift;
1565 lov_sfs->os_blocks >>= shift;
1568 /* Sandia requested that df (and so, statfs) only
1569 returned minimal available space on
1570 a single OST, so people would be able to
1571 write this much data guaranteed. */
1572 if (osfs->os_bavail > lov_sfs->os_bavail) {
1573 /* Presumably if new bavail is smaller,
1574 new bfree is bigger as well */
1575 osfs->os_bfree = lov_sfs->os_bfree;
1576 osfs->os_bavail = lov_sfs->os_bavail;
1579 osfs->os_bfree += lov_sfs->os_bfree;
1580 osfs->os_bavail += lov_sfs->os_bavail;
1582 osfs->os_blocks += lov_sfs->os_blocks;
1583 /* XXX not sure about this one - depends on policy.
1584 * - could be minimum if we always stripe on all OBDs
1585 * (but that would be wrong for any other policy,
1586 * if one of the OBDs has no more objects left)
1587 * - could be sum if we stripe whole objects
1588 * - could be average, just to give a nice number
1590 * To give a "reasonable" (if not wholly accurate)
1591 * number, we divide the total number of free objects
1592 * by expected stripe count (watch out for overflow).
1594 LOV_SUM_MAX(osfs->os_files, lov_sfs->os_files);
1595 LOV_SUM_MAX(osfs->os_ffree, lov_sfs->os_ffree);
1599 /* The callback for osc_statfs_async that finilizes a request info when a
1600 * response is received. */
1601 static int cb_statfs_update(void *cookie, int rc)
1603 struct obd_info *oinfo = cookie;
1604 struct lov_request *lovreq;
1605 struct lov_request_set *set;
1606 struct obd_statfs *osfs, *lov_sfs;
1607 struct lov_obd *lov;
1608 struct lov_tgt_desc *tgt;
1609 struct obd_device *lovobd, *tgtobd;
1613 lovreq = container_of(oinfo, struct lov_request, rq_oi);
1614 set = lovreq->rq_rqset;
1615 lovobd = set->set_obd;
1616 lov = &lovobd->u.lov;
1617 osfs = set->set_oi->oi_osfs;
1618 lov_sfs = oinfo->oi_osfs;
1619 success = cfs_atomic_read(&set->set_success);
1620 /* XXX: the same is done in lov_update_common_set, however
1621 lovset->set_exp is not initialized. */
1622 lov_update_set(set, lovreq, rc);
1627 tgt = lov->lov_tgts[lovreq->rq_idx];
1628 if (!tgt || !tgt->ltd_active)
1629 GOTO(out_update, rc);
1631 tgtobd = class_exp2obd(tgt->ltd_exp);
1632 cfs_spin_lock(&tgtobd->obd_osfs_lock);
1633 memcpy(&tgtobd->obd_osfs, lov_sfs, sizeof(*lov_sfs));
1634 if ((oinfo->oi_flags & OBD_STATFS_FROM_CACHE) == 0)
1635 tgtobd->obd_osfs_age = cfs_time_current_64();
1636 cfs_spin_unlock(&tgtobd->obd_osfs_lock);
1639 lov_update_statfs(osfs, lov_sfs, success);
1644 if (set->set_oi->oi_flags & OBD_STATFS_PTLRPCD &&
1645 lov_finished_set(set)) {
1646 lov_statfs_interpret(NULL, set, set->set_count !=
1647 cfs_atomic_read(&set->set_success));
1648 if (lov->lov_qos.lq_statfs_in_progress)
1649 qos_statfs_done(lov);
1655 int lov_prep_statfs_set(struct obd_device *obd, struct obd_info *oinfo,
1656 struct lov_request_set **reqset)
1658 struct lov_request_set *set;
1659 struct lov_obd *lov = &obd->u.lov;
1663 OBD_ALLOC(set, sizeof(*set));
1669 set->set_oi = oinfo;
1671 /* We only get block data from the OBD */
1672 for (i = 0; i < lov->desc.ld_tgt_count; i++) {
1673 struct lov_request *req;
1675 if (!lov->lov_tgts[i] || (!lov->lov_tgts[i]->ltd_active
1676 && (oinfo->oi_flags & OBD_STATFS_NODELAY))) {
1677 CDEBUG(D_HA, "lov idx %d inactive\n", i);
1681 /* skip targets that have been explicitely disabled by the
1683 if (!lov->lov_tgts[i]->ltd_exp) {
1684 CDEBUG(D_HA, "lov idx %d administratively disabled\n", i);
1688 OBD_ALLOC(req, sizeof(*req));
1690 GOTO(out_set, rc = -ENOMEM);
1692 OBD_ALLOC(req->rq_oi.oi_osfs, sizeof(*req->rq_oi.oi_osfs));
1693 if (req->rq_oi.oi_osfs == NULL) {
1694 OBD_FREE(req, sizeof(*req));
1695 GOTO(out_set, rc = -ENOMEM);
1699 req->rq_oi.oi_cb_up = cb_statfs_update;
1700 req->rq_oi.oi_flags = oinfo->oi_flags;
1702 lov_set_add_req(req, set);
1704 if (!set->set_count)
1705 GOTO(out_set, rc = -EIO);
1709 lov_fini_statfs_set(set);