4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2013, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/lov/lov_obd.c
38 * Author: Phil Schwan <phil@clusterfs.com>
39 * Author: Peter Braam <braam@clusterfs.com>
40 * Author: Mike Shaver <shaver@clusterfs.com>
41 * Author: Nathan Rutman <nathan@clusterfs.com>
44 #define DEBUG_SUBSYSTEM S_LOV
45 #include <libcfs/libcfs.h>
47 #include <obd_support.h>
48 #include <lustre_ioctl.h>
49 #include <lustre_lib.h>
50 #include <lustre_net.h>
51 #include <lustre/lustre_idl.h>
52 #include <lustre_dlm.h>
53 #include <lustre_mds.h>
54 #include <obd_class.h>
55 #include <lprocfs_status.h>
56 #include <lustre_param.h>
57 #include <cl_object.h>
59 #include <lustre/ll_fiemap.h>
60 #include <lustre_fid.h>
62 #include "lov_internal.h"
64 /* Keep a refcount of lov->tgt usage to prevent racing with addition/deletion.
65 Any function that expects lov_tgts to remain stationary must take a ref. */
66 static void lov_getref(struct obd_device *obd)
68 struct lov_obd *lov = &obd->u.lov;
70 /* nobody gets through here until lov_putref is done */
71 mutex_lock(&lov->lov_lock);
72 atomic_inc(&lov->lov_refcount);
73 mutex_unlock(&lov->lov_lock);
77 static void __lov_del_obd(struct obd_device *obd, struct lov_tgt_desc *tgt);
79 static void lov_putref(struct obd_device *obd)
81 struct lov_obd *lov = &obd->u.lov;
83 mutex_lock(&lov->lov_lock);
84 /* ok to dec to 0 more than once -- ltd_exp's will be null */
85 if (atomic_dec_and_test(&lov->lov_refcount) && lov->lov_death_row) {
86 struct list_head kill = LIST_HEAD_INIT(kill);
87 struct lov_tgt_desc *tgt, *n;
90 CDEBUG(D_CONFIG, "destroying %d lov targets\n",
92 for (i = 0; i < lov->desc.ld_tgt_count; i++) {
93 tgt = lov->lov_tgts[i];
95 if (!tgt || !tgt->ltd_reap)
97 list_add(&tgt->ltd_kill, &kill);
98 /* XXX - right now there is a dependency on ld_tgt_count
99 * being the maximum tgt index for computing the
100 * mds_max_easize. So we can't shrink it. */
101 lov_ost_pool_remove(&lov->lov_packed, i);
102 lov->lov_tgts[i] = NULL;
103 lov->lov_death_row--;
105 mutex_unlock(&lov->lov_lock);
107 list_for_each_entry_safe(tgt, n, &kill, ltd_kill) {
108 list_del(&tgt->ltd_kill);
110 __lov_del_obd(obd, tgt);
113 mutex_unlock(&lov->lov_lock);
117 static int lov_set_osc_active(struct obd_device *obd, struct obd_uuid *uuid,
118 enum obd_notify_event ev);
119 static int lov_notify(struct obd_device *obd, struct obd_device *watched,
120 enum obd_notify_event ev, void *data);
122 int lov_connect_obd(struct obd_device *obd, __u32 index, int activate,
123 struct obd_connect_data *data)
125 struct lov_obd *lov = &obd->u.lov;
126 struct obd_uuid *tgt_uuid;
127 struct obd_device *tgt_obd;
128 static struct obd_uuid lov_osc_uuid = { "LOV_OSC_UUID" };
129 struct obd_import *imp;
133 if (lov->lov_tgts[index] == NULL)
136 tgt_uuid = &lov->lov_tgts[index]->ltd_uuid;
137 tgt_obd = lov->lov_tgts[index]->ltd_obd;
139 if (!tgt_obd->obd_set_up) {
140 CERROR("Target %s not set up\n", obd_uuid2str(tgt_uuid));
144 /* override the sp_me from lov */
145 tgt_obd->u.cli.cl_sp_me = lov->lov_sp_me;
147 if (data && (data->ocd_connect_flags & OBD_CONNECT_INDEX))
148 data->ocd_index = index;
151 * Divine LOV knows that OBDs under it are OSCs.
153 imp = tgt_obd->u.cli.cl_import;
156 tgt_obd->obd_no_recov = 0;
157 /* FIXME this is probably supposed to be
158 ptlrpc_set_import_active. Horrible naming. */
159 ptlrpc_activate_import(imp);
162 rc = obd_register_observer(tgt_obd, obd);
164 CERROR("Target %s register_observer error %d\n",
165 obd_uuid2str(tgt_uuid), rc);
170 if (imp->imp_invalid) {
171 CDEBUG(D_CONFIG, "not connecting OSC %s; administratively "
172 "disabled\n", obd_uuid2str(tgt_uuid));
176 rc = obd_connect(NULL, &lov->lov_tgts[index]->ltd_exp, tgt_obd,
177 &lov_osc_uuid, data, NULL);
178 if (rc || !lov->lov_tgts[index]->ltd_exp) {
179 CERROR("Target %s connect error %d\n",
180 obd_uuid2str(tgt_uuid), rc);
184 lov->lov_tgts[index]->ltd_reap = 0;
186 CDEBUG(D_CONFIG, "Connected tgt idx %d %s (%s) %sactive\n", index,
187 obd_uuid2str(tgt_uuid), tgt_obd->obd_name, activate ? "":"in");
189 if (lov->targets_proc_entry != NULL) {
190 struct proc_dir_entry *osc_symlink;
191 struct obd_device *osc_obd;
193 osc_obd = lov->lov_tgts[index]->ltd_exp->exp_obd;
195 LASSERT(osc_obd != NULL);
196 LASSERT(osc_obd->obd_magic == OBD_DEVICE_MAGIC);
197 LASSERT(osc_obd->obd_type->typ_name != NULL);
199 osc_symlink = lprocfs_add_symlink(osc_obd->obd_name,
200 lov->targets_proc_entry,
202 osc_obd->obd_type->typ_name,
204 if (osc_symlink == NULL) {
205 CERROR("cannot register LOV target "
206 "/proc/fs/lustre/%s/%s/target_obds/%s\n",
207 obd->obd_type->typ_name, obd->obd_name,
214 static int lov_connect(const struct lu_env *env,
215 struct obd_export **exp, struct obd_device *obd,
216 struct obd_uuid *cluuid, struct obd_connect_data *data,
219 struct lov_obd *lov = &obd->u.lov;
220 struct lov_tgt_desc *tgt;
221 struct lustre_handle conn;
225 CDEBUG(D_CONFIG, "connect #%d\n", lov->lov_connects);
227 rc = class_connect(&conn, obd, cluuid);
231 *exp = class_conn2export(&conn);
233 /* Why should there ever be more than 1 connect? */
235 LASSERT(lov->lov_connects == 1);
237 memset(&lov->lov_ocd, 0, sizeof(lov->lov_ocd));
239 lov->lov_ocd = *data;
241 lov->targets_proc_entry = lprocfs_seq_register("target_obds",
244 if (IS_ERR(lov->targets_proc_entry)) {
245 CERROR("%s: cannot register "
246 "/proc/fs/lustre/%s/%s/target_obds\n",
247 obd->obd_name, obd->obd_type->typ_name, obd->obd_name);
248 lov->targets_proc_entry = NULL;
252 for (i = 0; i < lov->desc.ld_tgt_count; i++) {
253 tgt = lov->lov_tgts[i];
254 if (!tgt || obd_uuid_empty(&tgt->ltd_uuid))
256 /* Flags will be lowest common denominator */
257 rc = lov_connect_obd(obd, i, tgt->ltd_activate, &lov->lov_ocd);
259 CERROR("%s: lov connect tgt %d failed: %d\n",
260 obd->obd_name, i, rc);
263 /* connect to administrative disabled ost */
264 if (!lov->lov_tgts[i]->ltd_exp)
267 rc = lov_notify(obd, lov->lov_tgts[i]->ltd_exp->exp_obd,
268 OBD_NOTIFY_CONNECT, (void *)&i);
270 CERROR("%s error sending notify %d\n",
279 static int lov_disconnect_obd(struct obd_device *obd, struct lov_tgt_desc *tgt)
281 struct lov_obd *lov = &obd->u.lov;
282 struct obd_device *osc_obd;
286 osc_obd = class_exp2obd(tgt->ltd_exp);
287 CDEBUG(D_CONFIG, "%s: disconnecting target %s\n",
288 obd->obd_name, osc_obd->obd_name);
290 if (tgt->ltd_active) {
292 lov->desc.ld_active_tgt_count--;
293 tgt->ltd_exp->exp_obd->obd_inactive = 1;
297 /* Pass it on to our clients.
298 * XXX This should be an argument to disconnect,
299 * XXX not a back-door flag on the OBD. Ah well.
301 osc_obd->obd_force = obd->obd_force;
302 osc_obd->obd_fail = obd->obd_fail;
303 osc_obd->obd_no_recov = obd->obd_no_recov;
305 if (lov->targets_proc_entry != NULL)
306 lprocfs_remove_proc_entry(osc_obd->obd_name,
307 lov->targets_proc_entry);
310 obd_register_observer(osc_obd, NULL);
312 rc = obd_disconnect(tgt->ltd_exp);
314 CERROR("Target %s disconnect error %d\n",
315 tgt->ltd_uuid.uuid, rc);
323 static int lov_disconnect(struct obd_export *exp)
325 struct obd_device *obd = class_exp2obd(exp);
326 struct lov_obd *lov = &obd->u.lov;
333 /* Only disconnect the underlying layers on the final disconnect. */
335 if (lov->lov_connects != 0) {
336 /* why should there be more than 1 connect? */
337 CERROR("disconnect #%d\n", lov->lov_connects);
341 /* Let's hold another reference so lov_del_obd doesn't spin through
345 for (i = 0; i < lov->desc.ld_tgt_count; i++) {
346 if (lov->lov_tgts[i] && lov->lov_tgts[i]->ltd_exp) {
347 /* Disconnection is the last we know about an obd */
348 lov_del_target(obd, i, 0, lov->lov_tgts[i]->ltd_gen);
353 if (lov->targets_proc_entry != NULL)
354 lprocfs_remove(&lov->targets_proc_entry);
357 rc = class_disconnect(exp); /* bz 9811 */
363 * -EINVAL : UUID can't be found in the LOV's target list
364 * -ENOTCONN: The UUID is found, but the target connection is bad (!)
365 * -EBADF : The UUID is found, but the OBD is the wrong type (!)
366 * any >= 0 : is log target index
368 static int lov_set_osc_active(struct obd_device *obd, struct obd_uuid *uuid,
369 enum obd_notify_event ev)
371 struct lov_obd *lov = &obd->u.lov;
372 struct lov_tgt_desc *tgt;
373 int index, activate, active;
376 CDEBUG(D_INFO, "Searching in lov %p for uuid %s event(%d)\n",
377 lov, uuid->uuid, ev);
380 for (index = 0; index < lov->desc.ld_tgt_count; index++) {
381 tgt = lov->lov_tgts[index];
385 * LU-642, initially inactive OSC could miss the obd_connect,
386 * we make up for it here.
388 if (ev == OBD_NOTIFY_ACTIVATE && tgt->ltd_exp == NULL &&
389 obd_uuid_equals(uuid, &tgt->ltd_uuid)) {
390 struct obd_uuid lov_osc_uuid = {"LOV_OSC_UUID"};
392 obd_connect(NULL, &tgt->ltd_exp, tgt->ltd_obd,
393 &lov_osc_uuid, &lov->lov_ocd, NULL);
398 CDEBUG(D_INFO, "lov idx %d is %s conn "LPX64"\n",
399 index, obd_uuid2str(&tgt->ltd_uuid),
400 tgt->ltd_exp->exp_handle.h_cookie);
401 if (obd_uuid_equals(uuid, &tgt->ltd_uuid))
405 if (index == lov->desc.ld_tgt_count)
406 GOTO(out, index = -EINVAL);
408 if (ev == OBD_NOTIFY_DEACTIVATE || ev == OBD_NOTIFY_ACTIVATE) {
409 activate = (ev == OBD_NOTIFY_ACTIVATE) ? 1 : 0;
411 if (lov->lov_tgts[index]->ltd_activate == activate) {
412 CDEBUG(D_INFO, "OSC %s already %sactivate!\n",
413 uuid->uuid, activate ? "" : "de");
415 lov->lov_tgts[index]->ltd_activate = activate;
416 CDEBUG(D_CONFIG, "%sactivate OSC %s\n",
417 activate ? "" : "de", obd_uuid2str(uuid));
420 } else if (ev == OBD_NOTIFY_INACTIVE || ev == OBD_NOTIFY_ACTIVE) {
421 active = (ev == OBD_NOTIFY_ACTIVE) ? 1 : 0;
423 if (lov->lov_tgts[index]->ltd_active == active) {
424 CDEBUG(D_INFO, "OSC %s already %sactive!\n",
425 uuid->uuid, active ? "" : "in");
428 CDEBUG(D_CONFIG, "Marking OSC %s %sactive\n",
429 obd_uuid2str(uuid), active ? "" : "in");
432 lov->lov_tgts[index]->ltd_active = active;
434 lov->desc.ld_active_tgt_count++;
435 lov->lov_tgts[index]->ltd_exp->exp_obd->obd_inactive = 0;
437 lov->desc.ld_active_tgt_count--;
438 lov->lov_tgts[index]->ltd_exp->exp_obd->obd_inactive = 1;
441 CERROR("%s: unknown event %d for uuid %s\n", obd->obd_name,
450 static int lov_notify(struct obd_device *obd, struct obd_device *watched,
451 enum obd_notify_event ev, void *data)
454 struct lov_obd *lov = &obd->u.lov;
457 down_read(&lov->lov_notify_lock);
458 if (!lov->lov_connects) {
459 up_read(&lov->lov_notify_lock);
463 if (ev == OBD_NOTIFY_ACTIVE || ev == OBD_NOTIFY_INACTIVE ||
464 ev == OBD_NOTIFY_ACTIVATE || ev == OBD_NOTIFY_DEACTIVATE) {
465 struct obd_uuid *uuid;
469 if (strcmp(watched->obd_type->typ_name, LUSTRE_OSC_NAME)) {
470 up_read(&lov->lov_notify_lock);
471 CERROR("unexpected notification of %s %s!\n",
472 watched->obd_type->typ_name,
476 uuid = &watched->u.cli.cl_target_uuid;
478 /* Set OSC as active before notifying the observer, so the
479 * observer can use the OSC normally.
481 rc = lov_set_osc_active(obd, uuid, ev);
483 up_read(&lov->lov_notify_lock);
484 CERROR("event(%d) of %s failed: %d\n", ev,
485 obd_uuid2str(uuid), rc);
488 /* active event should be pass lov target index as data */
492 /* Pass the notification up the chain. */
494 rc = obd_notify_observer(obd, watched, ev, data);
496 /* NULL watched means all osc's in the lov (only for syncs) */
497 /* sync event should be send lov idx as data */
498 struct lov_obd *lov = &obd->u.lov;
502 is_sync = (ev == OBD_NOTIFY_SYNC) ||
503 (ev == OBD_NOTIFY_SYNC_NONBLOCK);
506 for (i = 0; i < lov->desc.ld_tgt_count; i++) {
507 if (!lov->lov_tgts[i])
510 /* don't send sync event if target not
511 * connected/activated */
512 if (is_sync && !lov->lov_tgts[i]->ltd_active)
515 rc = obd_notify_observer(obd, lov->lov_tgts[i]->ltd_obd,
518 CERROR("%s: notify %s of %s failed %d\n",
520 obd->obd_observer->obd_name,
521 lov->lov_tgts[i]->ltd_obd->obd_name,
528 up_read(&lov->lov_notify_lock);
532 static int lov_add_target(struct obd_device *obd, struct obd_uuid *uuidp,
533 __u32 index, int gen, int active)
535 struct lov_obd *lov = &obd->u.lov;
536 struct lov_tgt_desc *tgt;
537 struct obd_device *tgt_obd;
541 CDEBUG(D_CONFIG, "uuid:%s idx:%d gen:%d active:%d\n",
542 uuidp->uuid, index, gen, active);
545 CERROR("request to add OBD %s with invalid generation: %d\n",
550 tgt_obd = class_find_client_obd(uuidp, LUSTRE_OSC_NAME,
555 mutex_lock(&lov->lov_lock);
557 if ((index < lov->lov_tgt_size) && (lov->lov_tgts[index] != NULL)) {
558 tgt = lov->lov_tgts[index];
559 CERROR("UUID %s already assigned at LOV target index %d\n",
560 obd_uuid2str(&tgt->ltd_uuid), index);
561 mutex_unlock(&lov->lov_lock);
565 if (index >= lov->lov_tgt_size) {
566 /* We need to reallocate the lov target array. */
567 struct lov_tgt_desc **newtgts, **old = NULL;
568 __u32 newsize, oldsize = 0;
570 newsize = max(lov->lov_tgt_size, (__u32)2);
571 while (newsize < index + 1)
572 newsize = newsize << 1;
573 OBD_ALLOC(newtgts, sizeof(*newtgts) * newsize);
574 if (newtgts == NULL) {
575 mutex_unlock(&lov->lov_lock);
579 if (lov->lov_tgt_size) {
580 memcpy(newtgts, lov->lov_tgts, sizeof(*newtgts) *
583 oldsize = lov->lov_tgt_size;
586 lov->lov_tgts = newtgts;
587 lov->lov_tgt_size = newsize;
590 OBD_FREE(old, sizeof(*old) * oldsize);
592 CDEBUG(D_CONFIG, "tgts: %p size: %d\n",
593 lov->lov_tgts, lov->lov_tgt_size);
598 mutex_unlock(&lov->lov_lock);
602 rc = lov_ost_pool_add(&lov->lov_packed, index, lov->lov_tgt_size);
604 mutex_unlock(&lov->lov_lock);
609 tgt->ltd_uuid = *uuidp;
610 tgt->ltd_obd = tgt_obd;
611 /* XXX - add a sanity check on the generation number. */
613 tgt->ltd_index = index;
614 tgt->ltd_activate = active;
615 lov->lov_tgts[index] = tgt;
616 if (index >= lov->desc.ld_tgt_count)
617 lov->desc.ld_tgt_count = index + 1;
619 mutex_unlock(&lov->lov_lock);
621 CDEBUG(D_CONFIG, "idx=%d ltd_gen=%d ld_tgt_count=%d\n",
622 index, tgt->ltd_gen, lov->desc.ld_tgt_count);
624 rc = obd_notify(obd, tgt_obd, OBD_NOTIFY_CREATE, &index);
626 if (lov->lov_connects == 0) {
627 /* lov_connect hasn't been called yet. We'll do the
628 lov_connect_obd on this target when that fn first runs,
629 because we don't know the connect flags yet. */
635 rc = lov_connect_obd(obd, index, active, &lov->lov_ocd);
639 /* connect to administrative disabled ost */
643 if (lov->lov_cache != NULL) {
644 rc = obd_set_info_async(NULL, tgt->ltd_exp,
645 sizeof(KEY_CACHE_SET), KEY_CACHE_SET,
646 sizeof(struct cl_client_cache), lov->lov_cache,
652 rc = lov_notify(obd, tgt->ltd_exp->exp_obd,
653 active ? OBD_NOTIFY_CONNECT : OBD_NOTIFY_INACTIVE,
658 CERROR("add failed (%d), deleting %s\n", rc,
659 obd_uuid2str(&tgt->ltd_uuid));
660 lov_del_target(obd, index, 0, 0);
666 /* Schedule a target for deletion */
667 int lov_del_target(struct obd_device *obd, __u32 index,
668 struct obd_uuid *uuidp, int gen)
670 struct lov_obd *lov = &obd->u.lov;
671 int count = lov->desc.ld_tgt_count;
675 if (index >= count) {
676 CERROR("LOV target index %d >= number of LOV OBDs %d.\n",
681 /* to make sure there's no ongoing lov_notify() now */
682 down_write(&lov->lov_notify_lock);
685 if (!lov->lov_tgts[index]) {
686 CERROR("LOV target at index %d is not setup.\n", index);
687 GOTO(out, rc = -EINVAL);
690 if (uuidp && !obd_uuid_equals(uuidp, &lov->lov_tgts[index]->ltd_uuid)) {
691 CERROR("LOV target UUID %s at index %d doesn't match %s.\n",
692 lov_uuid2str(lov, index), index,
693 obd_uuid2str(uuidp));
694 GOTO(out, rc = -EINVAL);
697 CDEBUG(D_CONFIG, "uuid: %s idx: %d gen: %d exp: %p active: %d\n",
698 lov_uuid2str(lov, index), index,
699 lov->lov_tgts[index]->ltd_gen, lov->lov_tgts[index]->ltd_exp,
700 lov->lov_tgts[index]->ltd_active);
702 lov->lov_tgts[index]->ltd_reap = 1;
703 lov->lov_death_row++;
704 /* we really delete it from obd_putref */
707 up_write(&lov->lov_notify_lock);
712 static void __lov_del_obd(struct obd_device *obd, struct lov_tgt_desc *tgt)
714 struct obd_device *osc_obd;
717 LASSERT(tgt->ltd_reap);
719 osc_obd = class_exp2obd(tgt->ltd_exp);
721 CDEBUG(D_CONFIG, "Removing tgt %s : %s\n",
723 osc_obd ? osc_obd->obd_name : "<no obd>");
726 lov_disconnect_obd(obd, tgt);
730 /* Manual cleanup - no cleanup logs to clean up the osc's. We must
731 do it ourselves. And we can't do it from lov_cleanup,
732 because we just lost our only reference to it. */
734 class_manual_cleanup(osc_obd);
737 void lov_fix_desc_stripe_size(__u64 *val)
739 if (*val < LOV_MIN_STRIPE_SIZE) {
741 LCONSOLE_INFO("Increasing default stripe size to "
743 LOV_DESC_STRIPE_SIZE_DEFAULT);
744 *val = LOV_DESC_STRIPE_SIZE_DEFAULT;
745 } else if (*val & (LOV_MIN_STRIPE_SIZE - 1)) {
746 *val &= ~(LOV_MIN_STRIPE_SIZE - 1);
747 LCONSOLE_WARN("Changing default stripe size to "LPU64" (a "
749 *val, LOV_MIN_STRIPE_SIZE);
753 void lov_fix_desc_stripe_count(__u32 *val)
759 void lov_fix_desc_pattern(__u32 *val)
761 /* from lov_setstripe */
762 if ((*val != 0) && (*val != LOV_PATTERN_RAID0)) {
763 LCONSOLE_WARN("Unknown stripe pattern: %#x\n", *val);
768 void lov_fix_desc_qos_maxage(__u32 *val)
771 *val = LOV_DESC_QOS_MAXAGE_DEFAULT;
774 void lov_fix_desc(struct lov_desc *desc)
776 lov_fix_desc_stripe_size(&desc->ld_default_stripe_size);
777 lov_fix_desc_stripe_count(&desc->ld_default_stripe_count);
778 lov_fix_desc_pattern(&desc->ld_pattern);
779 lov_fix_desc_qos_maxage(&desc->ld_qos_maxage);
782 int lov_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
784 struct lov_desc *desc;
785 struct lov_obd *lov = &obd->u.lov;
787 struct obd_type *type;
792 if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1) {
793 CERROR("LOV setup requires a descriptor\n");
797 desc = (struct lov_desc *)lustre_cfg_buf(lcfg, 1);
799 if (sizeof(*desc) > LUSTRE_CFG_BUFLEN(lcfg, 1)) {
800 CERROR("descriptor size wrong: %d > %d\n",
801 (int)sizeof(*desc), LUSTRE_CFG_BUFLEN(lcfg, 1));
805 if (desc->ld_magic != LOV_DESC_MAGIC) {
806 if (desc->ld_magic == __swab32(LOV_DESC_MAGIC)) {
807 CDEBUG(D_OTHER, "%s: Swabbing lov desc %p\n",
808 obd->obd_name, desc);
809 lustre_swab_lov_desc(desc);
811 CERROR("%s: Bad lov desc magic: %#x\n",
812 obd->obd_name, desc->ld_magic);
819 desc->ld_active_tgt_count = 0;
821 lov->lov_tgt_size = 0;
823 mutex_init(&lov->lov_lock);
824 atomic_set(&lov->lov_refcount, 0);
825 lov->lov_sp_me = LUSTRE_SP_CLI;
827 init_rwsem(&lov->lov_notify_lock);
829 lov->lov_pools_hash_body = cfs_hash_create("POOLS", HASH_POOLS_CUR_BITS,
831 HASH_POOLS_BKT_BITS, 0,
834 &pool_hash_operations,
836 INIT_LIST_HEAD(&lov->lov_pool_list);
837 lov->lov_pool_count = 0;
838 rc = lov_ost_pool_init(&lov->lov_packed, 0);
843 obd->obd_vars = lprocfs_lov_obd_vars;
844 /* If this is true then both client (lov) and server
845 * (lod) are on the same node. The lod layer if loaded
846 * first will register the lov proc directory. In that
847 * case obd->obd_type->typ_procroot will be not set.
848 * Instead we use type->typ_procsym as the parent. */
849 type = class_search_type(LUSTRE_LOD_NAME);
850 if (type != NULL && type->typ_procsym != NULL) {
851 obd->obd_proc_entry = lprocfs_seq_register(obd->obd_name,
854 if (IS_ERR(obd->obd_proc_entry)) {
855 rc = PTR_ERR(obd->obd_proc_entry);
856 CERROR("error %d setting up lprocfs for %s\n", rc,
858 obd->obd_proc_entry = NULL;
861 rc = lprocfs_obd_setup(obd);
865 rc = lprocfs_seq_create(obd->obd_proc_entry, "target_obd",
866 0444, &lov_proc_target_fops, obd);
868 CWARN("Error adding the target_obd file\n");
870 lov->lov_pool_proc_entry = lprocfs_seq_register("pools",
873 if (IS_ERR(lov->lov_pool_proc_entry)) {
874 rc = PTR_ERR(lov->lov_pool_proc_entry);
875 CERROR("error %d setting up lprocfs for pools\n", rc);
876 lov->lov_pool_proc_entry = NULL;
886 static int lov_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
889 struct lov_obd *lov = &obd->u.lov;
894 case OBD_CLEANUP_EARLY: {
896 for (i = 0; i < lov->desc.ld_tgt_count; i++) {
897 if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_active)
899 obd_precleanup(class_exp2obd(lov->lov_tgts[i]->ltd_exp),
911 static int lov_cleanup(struct obd_device *obd)
913 struct lov_obd *lov = &obd->u.lov;
914 struct list_head *pos, *tmp;
915 struct pool_desc *pool;
918 list_for_each_safe(pos, tmp, &lov->lov_pool_list) {
919 pool = list_entry(pos, struct pool_desc, pool_list);
920 /* free pool structs */
921 CDEBUG(D_INFO, "delete pool %p\n", pool);
922 /* In the function below, .hs_keycmp resolves to
923 * pool_hashkey_keycmp() */
924 /* coverity[overrun-buffer-val] */
925 lov_pool_del(obd, pool->pool_name);
927 cfs_hash_putref(lov->lov_pools_hash_body);
928 lov_ost_pool_free(&lov->lov_packed);
930 lprocfs_obd_cleanup(obd);
934 for (i = 0; i < lov->desc.ld_tgt_count; i++) {
935 if (!lov->lov_tgts[i])
938 /* Inactive targets may never have connected */
939 if (lov->lov_tgts[i]->ltd_active ||
940 atomic_read(&lov->lov_refcount))
941 /* We should never get here - these
942 * should have been removed in the
944 CERROR("%s: lov tgt %d not cleaned! "
945 "deathrow=%d, lovrc=%d\n",
946 obd->obd_name, i, lov->lov_death_row,
947 atomic_read(&lov->lov_refcount));
948 lov_del_target(obd, i, 0, 0);
951 OBD_FREE(lov->lov_tgts, sizeof(*lov->lov_tgts) *
953 lov->lov_tgt_size = 0;
958 int lov_process_config_base(struct obd_device *obd, struct lustre_cfg *lcfg,
959 __u32 *indexp, int *genp)
961 struct obd_uuid obd_uuid;
966 switch(cmd = lcfg->lcfg_command) {
967 case LCFG_LOV_ADD_OBD:
968 case LCFG_LOV_ADD_INA:
969 case LCFG_LOV_DEL_OBD: {
972 /* lov_modify_tgts add 0:lov_mdsA 1:ost1_UUID 2:0 3:1 */
973 if (LUSTRE_CFG_BUFLEN(lcfg, 1) > sizeof(obd_uuid.uuid))
974 GOTO(out, rc = -EINVAL);
976 obd_str2uuid(&obd_uuid, lustre_cfg_buf(lcfg, 1));
978 if (sscanf(lustre_cfg_buf(lcfg, 2), "%u", indexp) != 1)
979 GOTO(out, rc = -EINVAL);
980 if (sscanf(lustre_cfg_buf(lcfg, 3), "%d", genp) != 1)
981 GOTO(out, rc = -EINVAL);
984 if (cmd == LCFG_LOV_ADD_OBD)
985 rc = lov_add_target(obd, &obd_uuid, index, gen, 1);
986 else if (cmd == LCFG_LOV_ADD_INA)
987 rc = lov_add_target(obd, &obd_uuid, index, gen, 0);
989 rc = lov_del_target(obd, index, &obd_uuid, gen);
993 struct lov_desc *desc = &(obd->u.lov.desc);
996 GOTO(out, rc = -EINVAL);
998 rc = class_process_proc_param(PARAM_LOV, obd->obd_vars,
1011 CERROR("Unknown command: %d\n", lcfg->lcfg_command);
1012 GOTO(out, rc = -EINVAL);
1020 static int lov_recreate(struct obd_export *exp, struct obdo *src_oa,
1021 struct lov_stripe_md **ea, struct obd_trans_info *oti)
1023 struct lov_stripe_md *obj_mdp, *lsm;
1024 struct lov_obd *lov = &exp->exp_obd->u.lov;
1029 LASSERT(src_oa->o_valid & OBD_MD_FLFLAGS &&
1030 src_oa->o_flags & OBD_FL_RECREATE_OBJS);
1032 OBD_ALLOC(obj_mdp, sizeof(*obj_mdp));
1033 if (obj_mdp == NULL)
1036 ost_idx = src_oa->o_nlink;
1039 GOTO(out, rc = -EINVAL);
1040 if (ost_idx >= lov->desc.ld_tgt_count ||
1041 !lov->lov_tgts[ost_idx])
1042 GOTO(out, rc = -EINVAL);
1044 for (i = 0; i < lsm->lsm_stripe_count; i++) {
1045 struct lov_oinfo *loi = lsm->lsm_oinfo[i];
1047 if (lov_oinfo_is_dummy(loi))
1050 if (loi->loi_ost_idx == ost_idx) {
1051 if (ostid_id(&loi->loi_oi) !=
1052 ostid_id(&src_oa->o_oi))
1053 GOTO(out, rc = -EINVAL);
1057 if (i == lsm->lsm_stripe_count)
1058 GOTO(out, rc = -EINVAL);
1060 rc = obd_create(NULL, lov->lov_tgts[ost_idx]->ltd_exp,
1061 src_oa, &obj_mdp, oti);
1063 OBD_FREE(obj_mdp, sizeof(*obj_mdp));
1067 /* the LOV expects oa->o_id to be set to the LOV object id */
1068 static int lov_create(const struct lu_env *env, struct obd_export *exp,
1069 struct obdo *src_oa, struct lov_stripe_md **ea,
1070 struct obd_trans_info *oti)
1072 struct lov_obd *lov;
1076 LASSERT(ea != NULL);
1080 if ((src_oa->o_valid & OBD_MD_FLFLAGS) &&
1081 src_oa->o_flags == OBD_FL_DELORPHAN) {
1082 /* should be used with LOV anymore */
1086 lov = &exp->exp_obd->u.lov;
1087 if (!lov->desc.ld_active_tgt_count)
1090 obd_getref(exp->exp_obd);
1091 /* Recreate a specific object id at the given OST index */
1092 if ((src_oa->o_valid & OBD_MD_FLFLAGS) &&
1093 (src_oa->o_flags & OBD_FL_RECREATE_OBJS)) {
1094 rc = lov_recreate(exp, src_oa, ea, oti);
1097 obd_putref(exp->exp_obd);
1101 #define ASSERT_LSM_MAGIC(lsmp) \
1103 LASSERT((lsmp) != NULL); \
1104 LASSERTF(((lsmp)->lsm_magic == LOV_MAGIC_V1 || \
1105 (lsmp)->lsm_magic == LOV_MAGIC_V3), \
1106 "%p->lsm_magic=%x\n", (lsmp), (lsmp)->lsm_magic); \
1109 static int lov_destroy(const struct lu_env *env, struct obd_export *exp,
1110 struct obdo *oa, struct lov_stripe_md *lsm,
1111 struct obd_trans_info *oti, struct obd_export *md_exp,
1114 struct lov_request_set *set;
1115 struct obd_info oinfo;
1116 struct lov_request *req;
1117 struct list_head *pos;
1118 struct lov_obd *lov;
1119 int rc = 0, err = 0;
1122 ASSERT_LSM_MAGIC(lsm);
1124 if (!exp || !exp->exp_obd)
1127 if (oa->o_valid & OBD_MD_FLCOOKIE) {
1129 LASSERT(oti->oti_logcookies);
1132 lov = &exp->exp_obd->u.lov;
1133 obd_getref(exp->exp_obd);
1134 rc = lov_prep_destroy_set(exp, &oinfo, oa, lsm, oti, &set);
1138 list_for_each(pos, &set->set_list) {
1139 req = list_entry(pos, struct lov_request, rq_link);
1141 if (oa->o_valid & OBD_MD_FLCOOKIE)
1142 oti->oti_logcookies = set->set_cookies + req->rq_stripe;
1144 err = obd_destroy(env, lov->lov_tgts[req->rq_idx]->ltd_exp,
1145 req->rq_oi.oi_oa, NULL, oti, NULL, capa);
1146 err = lov_update_common_set(set, req, err);
1148 CERROR("%s: destroying objid "DOSTID" subobj "
1149 DOSTID" on OST idx %d: rc = %d\n",
1150 exp->exp_obd->obd_name, POSTID(&oa->o_oi),
1151 POSTID(&req->rq_oi.oi_oa->o_oi),
1159 LASSERT(lsm_op_find(lsm->lsm_magic) != NULL);
1160 rc = lsm_op_find(lsm->lsm_magic)->lsm_destroy(lsm, oa, md_exp);
1162 err = lov_fini_destroy_set(set);
1164 obd_putref(exp->exp_obd);
1165 RETURN(rc ? rc : err);
1168 static int lov_getattr_interpret(struct ptlrpc_request_set *rqset,
1171 struct lov_request_set *lovset = (struct lov_request_set *)data;
1175 /* don't do attribute merge if this aysnc op failed */
1177 atomic_set(&lovset->set_completes, 0);
1178 err = lov_fini_getattr_set(lovset);
1179 RETURN(rc ? rc : err);
1182 static int lov_getattr_async(struct obd_export *exp, struct obd_info *oinfo,
1183 struct ptlrpc_request_set *rqset)
1185 struct lov_request_set *lovset;
1186 struct lov_obd *lov;
1187 struct list_head *pos;
1188 struct lov_request *req;
1193 ASSERT_LSM_MAGIC(oinfo->oi_md);
1195 if (!exp || !exp->exp_obd)
1198 lov = &exp->exp_obd->u.lov;
1200 rc = lov_prep_getattr_set(exp, oinfo, &lovset);
1204 CDEBUG(D_INFO, "objid "DOSTID": %ux%u byte stripes\n",
1205 POSTID(&oinfo->oi_md->lsm_oi), oinfo->oi_md->lsm_stripe_count,
1206 oinfo->oi_md->lsm_stripe_size);
1208 list_for_each(pos, &lovset->set_list) {
1209 req = list_entry(pos, struct lov_request, rq_link);
1211 CDEBUG(D_INFO, "objid "DOSTID"[%d] has subobj "DOSTID" at idx"
1212 "%u\n", POSTID(&oinfo->oi_oa->o_oi), req->rq_stripe,
1213 POSTID(&req->rq_oi.oi_oa->o_oi), req->rq_idx);
1214 rc = obd_getattr_async(lov->lov_tgts[req->rq_idx]->ltd_exp,
1215 &req->rq_oi, rqset);
1217 CERROR("%s: getattr objid "DOSTID" subobj"
1218 DOSTID" on OST idx %d: rc = %d\n",
1219 exp->exp_obd->obd_name,
1220 POSTID(&oinfo->oi_oa->o_oi),
1221 POSTID(&req->rq_oi.oi_oa->o_oi),
1227 if (!list_empty(&rqset->set_requests)) {
1229 LASSERT (rqset->set_interpret == NULL);
1230 rqset->set_interpret = lov_getattr_interpret;
1231 rqset->set_arg = (void *)lovset;
1236 atomic_set(&lovset->set_completes, 0);
1237 err = lov_fini_getattr_set(lovset);
1238 RETURN(rc ? rc : err);
1241 static int lov_setattr_interpret(struct ptlrpc_request_set *rqset,
1244 struct lov_request_set *lovset = (struct lov_request_set *)data;
1249 atomic_set(&lovset->set_completes, 0);
1250 err = lov_fini_setattr_set(lovset);
1251 RETURN(rc ? rc : err);
1254 /* If @oti is given, the request goes from MDS and responses from OSTs are not
1255 needed. Otherwise, a client is waiting for responses. */
1256 static int lov_setattr_async(struct obd_export *exp, struct obd_info *oinfo,
1257 struct obd_trans_info *oti,
1258 struct ptlrpc_request_set *rqset)
1260 struct lov_request_set *set;
1261 struct lov_request *req;
1262 struct list_head *pos;
1263 struct lov_obd *lov;
1268 ASSERT_LSM_MAGIC(oinfo->oi_md);
1269 if (oinfo->oi_oa->o_valid & OBD_MD_FLCOOKIE) {
1271 LASSERT(oti->oti_logcookies);
1274 if (!exp || !exp->exp_obd)
1277 lov = &exp->exp_obd->u.lov;
1278 rc = lov_prep_setattr_set(exp, oinfo, oti, &set);
1282 CDEBUG(D_INFO, "objid "DOSTID": %ux%u byte stripes\n",
1283 POSTID(&oinfo->oi_md->lsm_oi),
1284 oinfo->oi_md->lsm_stripe_count,
1285 oinfo->oi_md->lsm_stripe_size);
1287 list_for_each(pos, &set->set_list) {
1288 req = list_entry(pos, struct lov_request, rq_link);
1290 if (oinfo->oi_oa->o_valid & OBD_MD_FLCOOKIE)
1291 oti->oti_logcookies = set->set_cookies + req->rq_stripe;
1293 CDEBUG(D_INFO, "objid "DOSTID"[%d] has subobj "DOSTID" at idx"
1294 "%u\n", POSTID(&oinfo->oi_oa->o_oi), req->rq_stripe,
1295 POSTID(&req->rq_oi.oi_oa->o_oi), req->rq_idx);
1297 rc = obd_setattr_async(lov->lov_tgts[req->rq_idx]->ltd_exp,
1298 &req->rq_oi, oti, rqset);
1300 CERROR("error: setattr objid "DOSTID" subobj"
1301 DOSTID" on OST idx %d: rc = %d\n",
1302 POSTID(&set->set_oi->oi_oa->o_oi),
1303 POSTID(&req->rq_oi.oi_oa->o_oi),
1309 /* If we are not waiting for responses on async requests, return. */
1310 if (rc || !rqset || list_empty(&rqset->set_requests)) {
1313 atomic_set(&set->set_completes, 0);
1314 err = lov_fini_setattr_set(set);
1315 RETURN(rc ? rc : err);
1318 LASSERT(rqset->set_interpret == NULL);
1319 rqset->set_interpret = lov_setattr_interpret;
1320 rqset->set_arg = (void *)set;
1325 static int lov_change_cbdata(struct obd_export *exp,
1326 struct lov_stripe_md *lsm, ldlm_iterator_t it,
1329 struct lov_obd *lov;
1333 ASSERT_LSM_MAGIC(lsm);
1335 if (!exp || !exp->exp_obd)
1338 lov = &exp->exp_obd->u.lov;
1339 for (i = 0; i < lsm->lsm_stripe_count; i++) {
1340 struct lov_stripe_md submd;
1341 struct lov_oinfo *loi = lsm->lsm_oinfo[i];
1343 if (lov_oinfo_is_dummy(loi))
1346 if (!lov->lov_tgts[loi->loi_ost_idx]) {
1347 CDEBUG(D_HA, "lov idx %d NULL\n", loi->loi_ost_idx);
1351 submd.lsm_oi = loi->loi_oi;
1352 submd.lsm_stripe_count = 0;
1353 rc = obd_change_cbdata(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
1359 /* find any ldlm lock of the inode in lov
1363 static int lov_find_cbdata(struct obd_export *exp,
1364 struct lov_stripe_md *lsm, ldlm_iterator_t it,
1367 struct lov_obd *lov;
1371 ASSERT_LSM_MAGIC(lsm);
1373 if (!exp || !exp->exp_obd)
1376 lov = &exp->exp_obd->u.lov;
1377 for (i = 0; i < lsm->lsm_stripe_count; i++) {
1378 struct lov_stripe_md submd;
1379 struct lov_oinfo *loi = lsm->lsm_oinfo[i];
1381 if (lov_oinfo_is_dummy(loi))
1384 if (!lov->lov_tgts[loi->loi_ost_idx]) {
1385 CDEBUG(D_HA, "lov idx %d NULL\n", loi->loi_ost_idx);
1389 submd.lsm_oi = loi->loi_oi;
1390 submd.lsm_stripe_count = 0;
1391 rc = obd_find_cbdata(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
1399 int lov_statfs_interpret(struct ptlrpc_request_set *rqset, void *data, int rc)
1401 struct lov_request_set *lovset = (struct lov_request_set *)data;
1406 atomic_set(&lovset->set_completes, 0);
1408 err = lov_fini_statfs_set(lovset);
1409 RETURN(rc ? rc : err);
1412 static int lov_statfs_async(struct obd_export *exp, struct obd_info *oinfo,
1413 __u64 max_age, struct ptlrpc_request_set *rqset)
1415 struct obd_device *obd = class_exp2obd(exp);
1416 struct lov_request_set *set;
1417 struct lov_request *req;
1418 struct list_head *pos;
1419 struct lov_obd *lov;
1423 LASSERT(oinfo != NULL);
1424 LASSERT(oinfo->oi_osfs != NULL);
1427 rc = lov_prep_statfs_set(obd, oinfo, &set);
1431 list_for_each(pos, &set->set_list) {
1432 req = list_entry(pos, struct lov_request, rq_link);
1433 rc = obd_statfs_async(lov->lov_tgts[req->rq_idx]->ltd_exp,
1434 &req->rq_oi, max_age, rqset);
1439 if (rc || list_empty(&rqset->set_requests)) {
1442 atomic_set(&set->set_completes, 0);
1443 err = lov_fini_statfs_set(set);
1444 RETURN(rc ? rc : err);
1447 LASSERT(rqset->set_interpret == NULL);
1448 rqset->set_interpret = lov_statfs_interpret;
1449 rqset->set_arg = (void *)set;
1453 static int lov_statfs(const struct lu_env *env, struct obd_export *exp,
1454 struct obd_statfs *osfs, __u64 max_age, __u32 flags)
1456 struct ptlrpc_request_set *set = NULL;
1457 struct obd_info oinfo = { { { 0 } } };
1462 /* for obdclass we forbid using obd_statfs_rqset, but prefer using async
1463 * statfs requests */
1464 set = ptlrpc_prep_set();
1468 oinfo.oi_osfs = osfs;
1469 oinfo.oi_flags = flags;
1470 rc = lov_statfs_async(exp, &oinfo, max_age, set);
1472 rc = ptlrpc_set_wait(set);
1473 ptlrpc_set_destroy(set);
1478 static int lov_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
1479 void *karg, void __user *uarg)
1481 struct obd_device *obddev = class_exp2obd(exp);
1482 struct lov_obd *lov = &obddev->u.lov;
1483 int i = 0, rc = 0, count = lov->desc.ld_tgt_count;
1484 struct obd_uuid *uuidp;
1488 case IOC_OBD_STATFS: {
1489 struct obd_ioctl_data *data = karg;
1490 struct obd_device *osc_obd;
1491 struct obd_statfs stat_buf = {0};
1495 memcpy(&index, data->ioc_inlbuf2, sizeof(__u32));
1496 if ((index >= count))
1499 if (!lov->lov_tgts[index])
1500 /* Try again with the next index */
1502 if (!lov->lov_tgts[index]->ltd_active)
1505 osc_obd = class_exp2obd(lov->lov_tgts[index]->ltd_exp);
1510 if (copy_to_user(data->ioc_pbuf2, obd2cli_tgt(osc_obd),
1511 min((int)data->ioc_plen2,
1512 (int)sizeof(struct obd_uuid))))
1515 flags = uarg ? *(__u32 __user *)uarg : 0;
1516 /* got statfs data */
1517 rc = obd_statfs(NULL, lov->lov_tgts[index]->ltd_exp, &stat_buf,
1518 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
1522 if (copy_to_user(data->ioc_pbuf1, &stat_buf,
1523 min((int) data->ioc_plen1,
1524 (int) sizeof(stat_buf))))
1528 case OBD_IOC_LOV_GET_CONFIG: {
1529 struct obd_ioctl_data *data;
1530 struct lov_desc *desc;
1535 if (obd_ioctl_getdata(&buf, &len, uarg))
1538 data = (struct obd_ioctl_data *)buf;
1540 if (sizeof(*desc) > data->ioc_inllen1) {
1541 obd_ioctl_freedata(buf, len);
1545 if (sizeof(uuidp->uuid) * count > data->ioc_inllen2) {
1546 obd_ioctl_freedata(buf, len);
1550 if (sizeof(__u32) * count > data->ioc_inllen3) {
1551 obd_ioctl_freedata(buf, len);
1555 desc = (struct lov_desc *)data->ioc_inlbuf1;
1556 memcpy(desc, &(lov->desc), sizeof(*desc));
1558 uuidp = (struct obd_uuid *)data->ioc_inlbuf2;
1559 genp = (__u32 *)data->ioc_inlbuf3;
1560 /* the uuid will be empty for deleted OSTs */
1561 for (i = 0; i < count; i++, uuidp++, genp++) {
1562 if (!lov->lov_tgts[i])
1564 *uuidp = lov->lov_tgts[i]->ltd_uuid;
1565 *genp = lov->lov_tgts[i]->ltd_gen;
1568 if (copy_to_user(uarg, buf, len))
1570 obd_ioctl_freedata(buf, len);
1573 case LL_IOC_LOV_GETSTRIPE:
1574 rc = lov_getstripe(exp, karg, uarg);
1576 case OBD_IOC_QUOTACTL: {
1577 struct if_quotactl *qctl = karg;
1578 struct lov_tgt_desc *tgt = NULL;
1579 struct obd_quotactl *oqctl;
1581 if (qctl->qc_valid == QC_OSTIDX) {
1582 if (count <= qctl->qc_idx)
1585 tgt = lov->lov_tgts[qctl->qc_idx];
1586 if (!tgt || !tgt->ltd_exp)
1588 } else if (qctl->qc_valid == QC_UUID) {
1589 for (i = 0; i < count; i++) {
1590 tgt = lov->lov_tgts[i];
1592 !obd_uuid_equals(&tgt->ltd_uuid,
1596 if (tgt->ltd_exp == NULL)
1608 LASSERT(tgt && tgt->ltd_exp);
1609 OBD_ALLOC_PTR(oqctl);
1613 QCTL_COPY(oqctl, qctl);
1614 rc = obd_quotactl(tgt->ltd_exp, oqctl);
1616 QCTL_COPY(qctl, oqctl);
1617 qctl->qc_valid = QC_OSTIDX;
1618 qctl->obd_uuid = tgt->ltd_uuid;
1620 OBD_FREE_PTR(oqctl);
1629 for (i = 0; i < count; i++) {
1631 struct obd_device *osc_obd;
1633 /* OST was disconnected */
1634 if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_exp)
1637 /* ll_umount_begin() sets force flag but for lov, not
1638 * osc. Let's pass it through */
1639 osc_obd = class_exp2obd(lov->lov_tgts[i]->ltd_exp);
1640 osc_obd->obd_force = obddev->obd_force;
1641 err = obd_iocontrol(cmd, lov->lov_tgts[i]->ltd_exp,
1643 if (err == -ENODATA && cmd == OBD_IOC_POLL_QUOTACHECK) {
1646 if (lov->lov_tgts[i]->ltd_active) {
1647 CDEBUG(err == -ENOTTY ?
1648 D_IOCTL : D_WARNING,
1649 "iocontrol OSC %s on OST "
1650 "idx %d cmd %x: err = %d\n",
1651 lov_uuid2str(lov, i),
1668 #define FIEMAP_BUFFER_SIZE 4096
1671 * Non-zero fe_logical indicates that this is a continuation FIEMAP
1672 * call. The local end offset and the device are sent in the first
1673 * fm_extent. This function calculates the stripe number from the index.
1674 * This function returns a stripe_no on which mapping is to be restarted.
1676 * This function returns fm_end_offset which is the in-OST offset at which
1677 * mapping should be restarted. If fm_end_offset=0 is returned then caller
1678 * will re-calculate proper offset in next stripe.
1679 * Note that the first extent is passed to lov_get_info via the value field.
1681 * \param fiemap fiemap request header
1682 * \param lsm striping information for the file
1683 * \param fm_start logical start of mapping
1684 * \param fm_end logical end of mapping
1685 * \param start_stripe starting stripe will be returned in this
1687 obd_size fiemap_calc_fm_end_offset(struct ll_user_fiemap *fiemap,
1688 struct lov_stripe_md *lsm, obd_size fm_start,
1689 obd_size fm_end, int *start_stripe)
1691 obd_size local_end = fiemap->fm_extents[0].fe_logical;
1692 obd_off lun_start, lun_end;
1693 obd_size fm_end_offset;
1694 int stripe_no = -1, i;
1696 if (fiemap->fm_extent_count == 0 ||
1697 fiemap->fm_extents[0].fe_logical == 0)
1700 /* Find out stripe_no from ost_index saved in the fe_device */
1701 for (i = 0; i < lsm->lsm_stripe_count; i++) {
1702 struct lov_oinfo *oinfo = lsm->lsm_oinfo[i];
1704 if (lov_oinfo_is_dummy(oinfo))
1707 if (oinfo->loi_ost_idx == fiemap->fm_extents[0].fe_device) {
1713 if (stripe_no == -1)
1716 /* If we have finished mapping on previous device, shift logical
1717 * offset to start of next device */
1718 if ((lov_stripe_intersects(lsm, stripe_no, fm_start, fm_end,
1719 &lun_start, &lun_end)) != 0 &&
1720 local_end < lun_end) {
1721 fm_end_offset = local_end;
1722 *start_stripe = stripe_no;
1724 /* This is a special value to indicate that caller should
1725 * calculate offset in next stripe. */
1727 *start_stripe = (stripe_no + 1) % lsm->lsm_stripe_count;
1730 return fm_end_offset;
1734 * We calculate on which OST the mapping will end. If the length of mapping
1735 * is greater than (stripe_size * stripe_count) then the last_stripe will
1736 * will be one just before start_stripe. Else we check if the mapping
1737 * intersects each OST and find last_stripe.
1738 * This function returns the last_stripe and also sets the stripe_count
1739 * over which the mapping is spread
1741 * \param lsm striping information for the file
1742 * \param fm_start logical start of mapping
1743 * \param fm_end logical end of mapping
1744 * \param start_stripe starting stripe of the mapping
1745 * \param stripe_count the number of stripes across which to map is returned
1747 * \retval last_stripe return the last stripe of the mapping
1749 int fiemap_calc_last_stripe(struct lov_stripe_md *lsm, obd_size fm_start,
1750 obd_size fm_end, int start_stripe,
1754 obd_off obd_start, obd_end;
1757 if (fm_end - fm_start > lsm->lsm_stripe_size * lsm->lsm_stripe_count) {
1758 last_stripe = (start_stripe < 1 ? lsm->lsm_stripe_count - 1 :
1760 *stripe_count = lsm->lsm_stripe_count;
1762 for (j = 0, i = start_stripe; j < lsm->lsm_stripe_count;
1763 i = (i + 1) % lsm->lsm_stripe_count, j++) {
1764 if ((lov_stripe_intersects(lsm, i, fm_start, fm_end,
1765 &obd_start, &obd_end)) == 0)
1769 last_stripe = (start_stripe + j - 1) %lsm->lsm_stripe_count;
1776 * Set fe_device and copy extents from local buffer into main return buffer.
1778 * \param fiemap fiemap request header
1779 * \param lcl_fm_ext array of local fiemap extents to be copied
1780 * \param ost_index OST index to be written into the fm_device field for each
1782 * \param ext_count number of extents to be copied
1783 * \param current_extent where to start copying in main extent array
1785 void fiemap_prepare_and_copy_exts(struct ll_user_fiemap *fiemap,
1786 struct ll_fiemap_extent *lcl_fm_ext,
1787 int ost_index, unsigned int ext_count,
1793 for (ext = 0; ext < ext_count; ext++) {
1794 lcl_fm_ext[ext].fe_device = ost_index;
1795 lcl_fm_ext[ext].fe_flags |= FIEMAP_EXTENT_NET;
1798 /* Copy fm_extent's from fm_local to return buffer */
1799 to = (char *)fiemap + fiemap_count_to_size(current_extent);
1800 memcpy(to, lcl_fm_ext, ext_count * sizeof(struct ll_fiemap_extent));
1804 * Break down the FIEMAP request and send appropriate calls to individual OSTs.
1805 * This also handles the restarting of FIEMAP calls in case mapping overflows
1806 * the available number of extents in single call.
1808 static int lov_fiemap(struct lov_obd *lov, __u32 keylen, void *key,
1809 __u32 *vallen, void *val, struct lov_stripe_md *lsm)
1811 struct ll_fiemap_info_key *fm_key = key;
1812 struct ll_user_fiemap *fiemap = val;
1813 struct ll_user_fiemap *fm_local = NULL;
1814 struct ll_fiemap_extent *lcl_fm_ext;
1816 unsigned int get_num_extents = 0;
1817 int ost_index = 0, actual_start_stripe, start_stripe;
1818 obd_size fm_start, fm_end, fm_length, fm_end_offset;
1820 int current_extent = 0, rc = 0, i;
1821 int ost_eof = 0; /* EOF for object */
1822 int ost_done = 0; /* done with required mapping for this OST? */
1824 int cur_stripe = 0, cur_stripe_wrap = 0, stripe_count;
1825 unsigned int buffer_size = FIEMAP_BUFFER_SIZE;
1827 if (!lsm_has_objects(lsm)) {
1828 if (lsm && lsm_is_released(lsm) && (fm_key->fiemap.fm_start <
1829 fm_key->oa.o_size)) {
1830 /* released file, return a minimal FIEMAP if
1831 * request fits in file-size.
1833 fiemap->fm_mapped_extents = 1;
1834 fiemap->fm_extents[0].fe_logical =
1835 fm_key->fiemap.fm_start;
1836 if (fm_key->fiemap.fm_start + fm_key->fiemap.fm_length <
1838 fiemap->fm_extents[0].fe_length =
1839 fm_key->fiemap.fm_length;
1841 fiemap->fm_extents[0].fe_length =
1843 fm_key->fiemap.fm_start;
1844 fiemap->fm_extents[0].fe_flags |=
1845 (FIEMAP_EXTENT_UNKNOWN |
1846 FIEMAP_EXTENT_LAST);
1851 if (fiemap_count_to_size(fm_key->fiemap.fm_extent_count) < buffer_size)
1852 buffer_size = fiemap_count_to_size(fm_key->fiemap.fm_extent_count);
1854 OBD_ALLOC_LARGE(fm_local, buffer_size);
1855 if (fm_local == NULL)
1856 GOTO(out, rc = -ENOMEM);
1857 lcl_fm_ext = &fm_local->fm_extents[0];
1859 count_local = fiemap_size_to_count(buffer_size);
1861 memcpy(fiemap, &fm_key->fiemap, sizeof(*fiemap));
1862 fm_start = fiemap->fm_start;
1863 fm_length = fiemap->fm_length;
1864 /* Calculate start stripe, last stripe and length of mapping */
1865 actual_start_stripe = start_stripe = lov_stripe_number(lsm, fm_start);
1866 fm_end = (fm_length == ~0ULL ? fm_key->oa.o_size :
1867 fm_start + fm_length - 1);
1868 /* If fm_length != ~0ULL but fm_start+fm_length-1 exceeds file size */
1869 if (fm_end > fm_key->oa.o_size)
1870 fm_end = fm_key->oa.o_size;
1872 last_stripe = fiemap_calc_last_stripe(lsm, fm_start, fm_end,
1873 actual_start_stripe, &stripe_count);
1875 fm_end_offset = fiemap_calc_fm_end_offset(fiemap, lsm, fm_start,
1876 fm_end, &start_stripe);
1877 if (fm_end_offset == -EINVAL)
1878 GOTO(out, rc = -EINVAL);
1880 if (fiemap_count_to_size(fiemap->fm_extent_count) > *vallen)
1881 fiemap->fm_extent_count = fiemap_size_to_count(*vallen);
1882 if (fiemap->fm_extent_count == 0) {
1883 get_num_extents = 1;
1886 /* Check each stripe */
1887 for (cur_stripe = start_stripe, i = 0; i < stripe_count;
1888 i++, cur_stripe = (cur_stripe + 1) % lsm->lsm_stripe_count) {
1889 obd_size req_fm_len; /* Stores length of required mapping */
1890 obd_size len_mapped_single_call;
1891 obd_off lun_start, lun_end, obd_object_end;
1892 unsigned int ext_count;
1894 cur_stripe_wrap = cur_stripe;
1896 /* Find out range of mapping on this stripe */
1897 if ((lov_stripe_intersects(lsm, cur_stripe, fm_start, fm_end,
1898 &lun_start, &obd_object_end)) == 0)
1901 if (lov_oinfo_is_dummy(lsm->lsm_oinfo[cur_stripe]))
1902 GOTO(out, rc = -EIO);
1904 /* If this is a continuation FIEMAP call and we are on
1905 * starting stripe then lun_start needs to be set to
1907 if (fm_end_offset != 0 && cur_stripe == start_stripe)
1908 lun_start = fm_end_offset;
1910 if (fm_length != ~0ULL) {
1911 /* Handle fm_start + fm_length overflow */
1912 if (fm_start + fm_length < fm_start)
1913 fm_length = ~0ULL - fm_start;
1914 lun_end = lov_size_to_stripe(lsm, fm_start + fm_length,
1920 if (lun_start == lun_end)
1923 req_fm_len = obd_object_end - lun_start;
1924 fm_local->fm_length = 0;
1925 len_mapped_single_call = 0;
1927 /* If the output buffer is very large and the objects have many
1928 * extents we may need to loop on a single OST repeatedly */
1932 if (get_num_extents == 0) {
1933 /* Don't get too many extents. */
1934 if (current_extent + count_local >
1935 fiemap->fm_extent_count)
1936 count_local = fiemap->fm_extent_count -
1940 lun_start += len_mapped_single_call;
1941 fm_local->fm_length = req_fm_len - len_mapped_single_call;
1942 req_fm_len = fm_local->fm_length;
1943 fm_local->fm_extent_count = count_local;
1944 fm_local->fm_mapped_extents = 0;
1945 fm_local->fm_flags = fiemap->fm_flags;
1947 fm_key->oa.o_oi = lsm->lsm_oinfo[cur_stripe]->loi_oi;
1948 ost_index = lsm->lsm_oinfo[cur_stripe]->loi_ost_idx;
1950 if (ost_index < 0 || ost_index >=lov->desc.ld_tgt_count)
1951 GOTO(out, rc = -EINVAL);
1953 /* If OST is inactive, return extent with UNKNOWN flag */
1954 if (!lov->lov_tgts[ost_index]->ltd_active) {
1955 fm_local->fm_flags |= FIEMAP_EXTENT_LAST;
1956 fm_local->fm_mapped_extents = 1;
1958 lcl_fm_ext[0].fe_logical = lun_start;
1959 lcl_fm_ext[0].fe_length = obd_object_end -
1961 lcl_fm_ext[0].fe_flags |= FIEMAP_EXTENT_UNKNOWN;
1966 fm_local->fm_start = lun_start;
1967 fm_local->fm_flags &= ~FIEMAP_FLAG_DEVICE_ORDER;
1968 memcpy(&fm_key->fiemap, fm_local, sizeof(*fm_local));
1969 *vallen=fiemap_count_to_size(fm_local->fm_extent_count);
1970 rc = obd_get_info(NULL,
1971 lov->lov_tgts[ost_index]->ltd_exp,
1972 keylen, key, vallen, fm_local, lsm);
1977 ext_count = fm_local->fm_mapped_extents;
1978 if (ext_count == 0) {
1980 /* If last stripe has hole at the end,
1981 * then we need to return */
1982 if (cur_stripe_wrap == last_stripe) {
1983 fiemap->fm_mapped_extents = 0;
1989 /* If we just need num of extents then go to next device */
1990 if (get_num_extents) {
1991 current_extent += ext_count;
1995 len_mapped_single_call = lcl_fm_ext[ext_count-1].fe_logical -
1996 lun_start + lcl_fm_ext[ext_count - 1].fe_length;
1998 /* Have we finished mapping on this device? */
1999 if (req_fm_len <= len_mapped_single_call)
2002 /* Clear the EXTENT_LAST flag which can be present on
2004 if (lcl_fm_ext[ext_count-1].fe_flags & FIEMAP_EXTENT_LAST)
2005 lcl_fm_ext[ext_count - 1].fe_flags &=
2006 ~FIEMAP_EXTENT_LAST;
2008 curr_loc = lov_stripe_size(lsm,
2009 lcl_fm_ext[ext_count - 1].fe_logical+
2010 lcl_fm_ext[ext_count - 1].fe_length,
2012 if (curr_loc >= fm_key->oa.o_size)
2015 fiemap_prepare_and_copy_exts(fiemap, lcl_fm_ext,
2016 ost_index, ext_count,
2019 current_extent += ext_count;
2021 /* Ran out of available extents? */
2022 if (current_extent >= fiemap->fm_extent_count)
2024 } while (ost_done == 0 && ost_eof == 0);
2026 if (cur_stripe_wrap == last_stripe)
2031 /* Indicate that we are returning device offsets unless file just has
2033 if (lsm->lsm_stripe_count > 1)
2034 fiemap->fm_flags |= FIEMAP_FLAG_DEVICE_ORDER;
2036 if (get_num_extents)
2037 goto skip_last_device_calc;
2039 /* Check if we have reached the last stripe and whether mapping for that
2040 * stripe is done. */
2041 if (cur_stripe_wrap == last_stripe) {
2042 if (ost_done || ost_eof)
2043 fiemap->fm_extents[current_extent - 1].fe_flags |=
2047 skip_last_device_calc:
2048 fiemap->fm_mapped_extents = current_extent;
2052 OBD_FREE_LARGE(fm_local, buffer_size);
2056 static int lov_get_info(const struct lu_env *env, struct obd_export *exp,
2057 __u32 keylen, void *key, __u32 *vallen, void *val,
2058 struct lov_stripe_md *lsm)
2060 struct obd_device *obddev = class_exp2obd(exp);
2061 struct lov_obd *lov = &obddev->u.lov;
2065 if (!vallen || !val)
2070 if (KEY_IS(KEY_LOCK_TO_STRIPE)) {
2073 struct ldlm_lock *lock;
2075 struct ldlm_res_id *res_id = &data->lock->l_resource->lr_name;
2076 struct lov_oinfo *loi;
2077 __u32 *stripe = val;
2079 if (*vallen < sizeof(*stripe))
2080 GOTO(out, rc = -EFAULT);
2081 *vallen = sizeof(*stripe);
2083 /* XXX This is another one of those bits that will need to
2084 * change if we ever actually support nested LOVs. It uses
2085 * the lock's export to find out which stripe it is. */
2086 /* XXX - it's assumed all the locks for deleted OSTs have
2087 * been cancelled. Also, the export for deleted OSTs will
2088 * be NULL and won't match the lock's export. */
2089 for (i = 0; i < lsm->lsm_stripe_count; i++) {
2090 loi = lsm->lsm_oinfo[i];
2091 if (lov_oinfo_is_dummy(loi))
2094 if (!lov->lov_tgts[loi->loi_ost_idx])
2096 if (lov->lov_tgts[loi->loi_ost_idx]->ltd_exp ==
2097 data->lock->l_conn_export &&
2098 ostid_res_name_eq(&loi->loi_oi, res_id)) {
2103 LDLM_ERROR(data->lock, "lock on inode without such object");
2104 dump_lsm(D_ERROR, lsm);
2105 GOTO(out, rc = -ENXIO);
2106 } else if (KEY_IS(KEY_LAST_ID)) {
2107 struct obd_id_info *info = val;
2108 __u32 size = sizeof(obd_id);
2109 struct lov_tgt_desc *tgt;
2111 LASSERT(*vallen == sizeof(struct obd_id_info));
2112 tgt = lov->lov_tgts[info->idx];
2114 if (!tgt || !tgt->ltd_active)
2115 GOTO(out, rc = -ESRCH);
2117 rc = obd_get_info(env, tgt->ltd_exp, keylen, key,
2118 &size, info->data, NULL);
2120 } else if (KEY_IS(KEY_LOVDESC)) {
2121 struct lov_desc *desc_ret = val;
2122 *desc_ret = lov->desc;
2125 } else if (KEY_IS(KEY_FIEMAP)) {
2126 rc = lov_fiemap(lov, keylen, key, vallen, val, lsm);
2128 } else if (KEY_IS(KEY_CONNECT_FLAG)) {
2129 struct lov_tgt_desc *tgt;
2130 __u64 ost_idx = *((__u64*)val);
2132 LASSERT(*vallen == sizeof(__u64));
2133 LASSERT(ost_idx < lov->desc.ld_tgt_count);
2134 tgt = lov->lov_tgts[ost_idx];
2136 if (!tgt || !tgt->ltd_exp)
2137 GOTO(out, rc = -ESRCH);
2139 *((__u64 *)val) = exp_connect_flags(tgt->ltd_exp);
2141 } else if (KEY_IS(KEY_TGT_COUNT)) {
2142 *((int *)val) = lov->desc.ld_tgt_count;
2153 static int lov_set_info_async(const struct lu_env *env, struct obd_export *exp,
2154 obd_count keylen, void *key, obd_count vallen,
2155 void *val, struct ptlrpc_request_set *set)
2157 struct obd_device *obddev = class_exp2obd(exp);
2158 struct lov_obd *lov = &obddev->u.lov;
2161 struct lov_tgt_desc *tgt;
2162 unsigned incr, check_uuid,
2163 do_inactive, no_set;
2164 unsigned next_id = 0, mds_con = 0, capa = 0;
2167 incr = check_uuid = do_inactive = no_set = 0;
2170 set = ptlrpc_prep_set();
2176 count = lov->desc.ld_tgt_count;
2178 if (KEY_IS(KEY_NEXT_ID)) {
2179 count = vallen / sizeof(struct obd_id_info);
2180 vallen = sizeof(obd_id);
2181 incr = sizeof(struct obd_id_info);
2184 } else if (KEY_IS(KEY_CHECKSUM)) {
2186 } else if (KEY_IS(KEY_EVICT_BY_NID)) {
2187 /* use defaults: do_inactive = incr = 0; */
2188 } else if (KEY_IS(KEY_MDS_CONN)) {
2190 } else if (KEY_IS(KEY_CAPA_KEY)) {
2192 } else if (KEY_IS(KEY_CACHE_SET)) {
2193 LASSERT(lov->lov_cache == NULL);
2194 lov->lov_cache = val;
2198 for (i = 0; i < count; i++, val = (char *)val + incr) {
2200 tgt = lov->lov_tgts[((struct obd_id_info*)val)->idx];
2202 tgt = lov->lov_tgts[i];
2204 /* OST was disconnected */
2205 if (!tgt || !tgt->ltd_exp)
2208 /* OST is inactive and we don't want inactive OSCs */
2209 if (!tgt->ltd_active && !do_inactive)
2213 struct mds_group_info *mgi;
2215 LASSERT(vallen == sizeof(*mgi));
2216 mgi = (struct mds_group_info *)val;
2218 /* Only want a specific OSC */
2219 if (mgi->uuid && !obd_uuid_equals(mgi->uuid,
2223 err = obd_set_info_async(env, tgt->ltd_exp,
2224 keylen, key, sizeof(int),
2226 } else if (next_id) {
2227 err = obd_set_info_async(env, tgt->ltd_exp,
2228 keylen, key, vallen,
2229 ((struct obd_id_info*)val)->data, set);
2231 struct mds_capa_info *info = (struct mds_capa_info*)val;
2233 LASSERT(vallen == sizeof(*info));
2235 /* Only want a specific OSC */
2237 !obd_uuid_equals(info->uuid, &tgt->ltd_uuid))
2240 err = obd_set_info_async(env, tgt->ltd_exp, keylen,
2241 key, sizeof(*info->capa),
2244 /* Only want a specific OSC */
2246 !obd_uuid_equals(val, &tgt->ltd_uuid))
2249 err = obd_set_info_async(env, tgt->ltd_exp,
2250 keylen, key, vallen, val, set);
2259 err = ptlrpc_set_wait(set);
2262 ptlrpc_set_destroy(set);
2267 void lov_stripe_lock(struct lov_stripe_md *md)
2268 __acquires(&md->lsm_lock)
2270 LASSERT(md->lsm_lock_owner != current_pid());
2271 spin_lock(&md->lsm_lock);
2272 LASSERT(md->lsm_lock_owner == 0);
2273 md->lsm_lock_owner = current_pid();
2276 void lov_stripe_unlock(struct lov_stripe_md *md)
2277 __releases(&md->lsm_lock)
2279 LASSERT(md->lsm_lock_owner == current_pid());
2280 md->lsm_lock_owner = 0;
2281 spin_unlock(&md->lsm_lock);
2284 static int lov_quotactl(struct obd_device *obd, struct obd_export *exp,
2285 struct obd_quotactl *oqctl)
2287 struct lov_obd *lov = &obd->u.lov;
2288 struct lov_tgt_desc *tgt;
2290 __u64 bhardlimit = 0;
2294 if (oqctl->qc_cmd != LUSTRE_Q_QUOTAON &&
2295 oqctl->qc_cmd != LUSTRE_Q_QUOTAOFF &&
2296 oqctl->qc_cmd != Q_GETOQUOTA &&
2297 oqctl->qc_cmd != Q_INITQUOTA &&
2298 oqctl->qc_cmd != LUSTRE_Q_SETQUOTA &&
2299 oqctl->qc_cmd != Q_FINVALIDATE) {
2300 CERROR("%s: bad quota opc %x for lov obd\n",
2301 obd->obd_name, oqctl->qc_cmd);
2307 for (i = 0; i < lov->desc.ld_tgt_count; i++) {
2310 tgt = lov->lov_tgts[i];
2315 if (!tgt->ltd_active || tgt->ltd_reap) {
2316 if (oqctl->qc_cmd == Q_GETOQUOTA &&
2317 lov->lov_tgts[i]->ltd_activate) {
2319 CERROR("ost %d is inactive\n", i);
2321 CDEBUG(D_HA, "ost %d is inactive\n", i);
2326 err = obd_quotactl(tgt->ltd_exp, oqctl);
2328 if (tgt->ltd_active && !rc)
2333 if (oqctl->qc_cmd == Q_GETOQUOTA) {
2334 curspace += oqctl->qc_dqblk.dqb_curspace;
2335 bhardlimit += oqctl->qc_dqblk.dqb_bhardlimit;
2340 if (oqctl->qc_cmd == Q_GETOQUOTA) {
2341 oqctl->qc_dqblk.dqb_curspace = curspace;
2342 oqctl->qc_dqblk.dqb_bhardlimit = bhardlimit;
2347 static int lov_quotacheck(struct obd_device *obd, struct obd_export *exp,
2348 struct obd_quotactl *oqctl)
2350 struct lov_obd *lov = &obd->u.lov;
2356 for (i = 0; i < lov->desc.ld_tgt_count; i++) {
2357 if (!lov->lov_tgts[i])
2360 /* Skip quota check on the administratively disabled OSTs. */
2361 if (!lov->lov_tgts[i]->ltd_activate) {
2362 CWARN("lov idx %d was administratively disabled, "
2363 "skip quotacheck on it.\n", i);
2367 if (!lov->lov_tgts[i]->ltd_active) {
2368 CERROR("lov idx %d inactive\n", i);
2374 for (i = 0; i < lov->desc.ld_tgt_count; i++) {
2377 if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_activate)
2380 err = obd_quotacheck(lov->lov_tgts[i]->ltd_exp, oqctl);
2391 static struct obd_ops lov_obd_ops = {
2392 .o_owner = THIS_MODULE,
2393 .o_setup = lov_setup,
2394 .o_precleanup = lov_precleanup,
2395 .o_cleanup = lov_cleanup,
2396 .o_connect = lov_connect,
2397 .o_disconnect = lov_disconnect,
2398 .o_statfs = lov_statfs,
2399 .o_statfs_async = lov_statfs_async,
2400 .o_packmd = lov_packmd,
2401 .o_unpackmd = lov_unpackmd,
2402 .o_create = lov_create,
2403 .o_destroy = lov_destroy,
2404 .o_getattr_async = lov_getattr_async,
2405 .o_setattr_async = lov_setattr_async,
2406 .o_change_cbdata = lov_change_cbdata,
2407 .o_find_cbdata = lov_find_cbdata,
2408 .o_iocontrol = lov_iocontrol,
2409 .o_get_info = lov_get_info,
2410 .o_set_info_async = lov_set_info_async,
2411 .o_notify = lov_notify,
2412 .o_pool_new = lov_pool_new,
2413 .o_pool_rem = lov_pool_remove,
2414 .o_pool_add = lov_pool_add,
2415 .o_pool_del = lov_pool_del,
2416 .o_getref = lov_getref,
2417 .o_putref = lov_putref,
2418 .o_quotactl = lov_quotactl,
2419 .o_quotacheck = lov_quotacheck,
2422 struct kmem_cache *lov_oinfo_slab;
2424 extern struct lu_kmem_descr lov_caches[];
2426 int __init lov_init(void)
2428 bool enable_proc = true;
2429 struct obd_type *type;
2433 /* print an address of _any_ initialized kernel symbol from this
2434 * module, to allow debugging with gdb that doesn't support data
2435 * symbols from modules.*/
2436 CDEBUG(D_INFO, "Lustre LOV module (%p).\n", &lov_caches);
2438 rc = lu_kmem_init(lov_caches);
2442 lov_oinfo_slab = kmem_cache_create("lov_oinfo",
2443 sizeof(struct lov_oinfo), 0,
2444 SLAB_HWCACHE_ALIGN, NULL);
2445 if (lov_oinfo_slab == NULL) {
2446 lu_kmem_fini(lov_caches);
2450 type = class_search_type(LUSTRE_LOD_NAME);
2451 if (type != NULL && type->typ_procsym != NULL)
2452 enable_proc = false;
2454 rc = class_register_type(&lov_obd_ops, NULL, enable_proc, NULL,
2455 LUSTRE_LOV_NAME, &lov_device_type);
2458 kmem_cache_destroy(lov_oinfo_slab);
2459 lu_kmem_fini(lov_caches);
2465 static void /*__exit*/ lov_exit(void)
2467 class_unregister_type(LUSTRE_LOV_NAME);
2468 kmem_cache_destroy(lov_oinfo_slab);
2469 lu_kmem_fini(lov_caches);
2472 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
2473 MODULE_DESCRIPTION("Lustre Logical Object Volume OBD driver");
2474 MODULE_LICENSE("GPL");
2476 cfs_module(lov, LUSTRE_VERSION_STRING, lov_init, lov_exit);