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
46 #include <libcfs/libcfs.h>
48 #include <liblustre.h>
51 #include <obd_support.h>
52 #include <lustre_ioctl.h>
53 #include <lustre_lib.h>
54 #include <lustre_net.h>
55 #include <lustre/lustre_idl.h>
56 #include <lustre_dlm.h>
57 #include <lustre_mds.h>
58 #include <obd_class.h>
59 #include <lprocfs_status.h>
60 #include <lustre_param.h>
61 #include <cl_object.h>
63 #include <lustre/ll_fiemap.h>
64 #include <lustre_fid.h>
66 #include "lov_internal.h"
68 /* Keep a refcount of lov->tgt usage to prevent racing with addition/deletion.
69 Any function that expects lov_tgts to remain stationary must take a ref. */
70 static void lov_getref(struct obd_device *obd)
72 struct lov_obd *lov = &obd->u.lov;
74 /* nobody gets through here until lov_putref is done */
75 mutex_lock(&lov->lov_lock);
76 atomic_inc(&lov->lov_refcount);
77 mutex_unlock(&lov->lov_lock);
81 static void __lov_del_obd(struct obd_device *obd, struct lov_tgt_desc *tgt);
83 static void lov_putref(struct obd_device *obd)
85 struct lov_obd *lov = &obd->u.lov;
87 mutex_lock(&lov->lov_lock);
88 /* ok to dec to 0 more than once -- ltd_exp's will be null */
89 if (atomic_dec_and_test(&lov->lov_refcount) && lov->lov_death_row) {
90 struct list_head kill = LIST_HEAD_INIT(kill);
91 struct lov_tgt_desc *tgt, *n;
94 CDEBUG(D_CONFIG, "destroying %d lov targets\n",
96 for (i = 0; i < lov->desc.ld_tgt_count; i++) {
97 tgt = lov->lov_tgts[i];
99 if (!tgt || !tgt->ltd_reap)
101 list_add(&tgt->ltd_kill, &kill);
102 /* XXX - right now there is a dependency on ld_tgt_count
103 * being the maximum tgt index for computing the
104 * mds_max_easize. So we can't shrink it. */
105 lov_ost_pool_remove(&lov->lov_packed, i);
106 lov->lov_tgts[i] = NULL;
107 lov->lov_death_row--;
109 mutex_unlock(&lov->lov_lock);
111 list_for_each_entry_safe(tgt, n, &kill, ltd_kill) {
112 list_del(&tgt->ltd_kill);
114 __lov_del_obd(obd, tgt);
117 mutex_unlock(&lov->lov_lock);
121 static int lov_set_osc_active(struct obd_device *obd, struct obd_uuid *uuid,
122 enum obd_notify_event ev);
123 static int lov_notify(struct obd_device *obd, struct obd_device *watched,
124 enum obd_notify_event ev, void *data);
126 int lov_connect_obd(struct obd_device *obd, __u32 index, int activate,
127 struct obd_connect_data *data)
129 struct lov_obd *lov = &obd->u.lov;
130 struct obd_uuid *tgt_uuid;
131 struct obd_device *tgt_obd;
132 static struct obd_uuid lov_osc_uuid = { "LOV_OSC_UUID" };
133 struct obd_import *imp;
137 if (lov->lov_tgts[index] == NULL)
140 tgt_uuid = &lov->lov_tgts[index]->ltd_uuid;
141 tgt_obd = lov->lov_tgts[index]->ltd_obd;
143 if (!tgt_obd->obd_set_up) {
144 CERROR("Target %s not set up\n", obd_uuid2str(tgt_uuid));
148 /* override the sp_me from lov */
149 tgt_obd->u.cli.cl_sp_me = lov->lov_sp_me;
151 if (data && (data->ocd_connect_flags & OBD_CONNECT_INDEX))
152 data->ocd_index = index;
155 * Divine LOV knows that OBDs under it are OSCs.
157 imp = tgt_obd->u.cli.cl_import;
160 tgt_obd->obd_no_recov = 0;
161 /* FIXME this is probably supposed to be
162 ptlrpc_set_import_active. Horrible naming. */
163 ptlrpc_activate_import(imp);
166 rc = obd_register_observer(tgt_obd, obd);
168 CERROR("Target %s register_observer error %d\n",
169 obd_uuid2str(tgt_uuid), rc);
174 if (imp->imp_invalid) {
175 CDEBUG(D_CONFIG, "not connecting OSC %s; administratively "
176 "disabled\n", obd_uuid2str(tgt_uuid));
180 rc = obd_connect(NULL, &lov->lov_tgts[index]->ltd_exp, tgt_obd,
181 &lov_osc_uuid, data, NULL);
182 if (rc || !lov->lov_tgts[index]->ltd_exp) {
183 CERROR("Target %s connect error %d\n",
184 obd_uuid2str(tgt_uuid), rc);
188 lov->lov_tgts[index]->ltd_reap = 0;
190 CDEBUG(D_CONFIG, "Connected tgt idx %d %s (%s) %sactive\n", index,
191 obd_uuid2str(tgt_uuid), tgt_obd->obd_name, activate ? "":"in");
193 if (lov->targets_proc_entry != NULL) {
194 struct proc_dir_entry *osc_symlink;
195 struct obd_device *osc_obd;
197 osc_obd = lov->lov_tgts[index]->ltd_exp->exp_obd;
199 LASSERT(osc_obd != NULL);
200 LASSERT(osc_obd->obd_magic == OBD_DEVICE_MAGIC);
201 LASSERT(osc_obd->obd_type->typ_name != NULL);
203 osc_symlink = lprocfs_add_symlink(osc_obd->obd_name,
204 lov->targets_proc_entry,
206 osc_obd->obd_type->typ_name,
208 if (osc_symlink == NULL) {
209 CERROR("could not register LOV target "
210 "/proc/fs/lustre/%s/%s/target_obds/%s.",
211 obd->obd_type->typ_name, obd->obd_name,
218 static int lov_connect(const struct lu_env *env,
219 struct obd_export **exp, struct obd_device *obd,
220 struct obd_uuid *cluuid, struct obd_connect_data *data,
223 struct lov_obd *lov = &obd->u.lov;
224 struct lov_tgt_desc *tgt;
225 struct lustre_handle conn;
229 CDEBUG(D_CONFIG, "connect #%d\n", lov->lov_connects);
231 rc = class_connect(&conn, obd, cluuid);
235 *exp = class_conn2export(&conn);
237 /* Why should there ever be more than 1 connect? */
239 LASSERT(lov->lov_connects == 1);
241 memset(&lov->lov_ocd, 0, sizeof(lov->lov_ocd));
243 lov->lov_ocd = *data;
245 lov->targets_proc_entry = lprocfs_seq_register("target_obds",
248 if (IS_ERR(lov->targets_proc_entry)) {
249 CERROR("%s: could not register /proc/fs/lustre/%s/%s/target_obds.",
250 obd->obd_name, obd->obd_type->typ_name, obd->obd_name);
251 lov->targets_proc_entry = NULL;
255 for (i = 0; i < lov->desc.ld_tgt_count; i++) {
256 tgt = lov->lov_tgts[i];
257 if (!tgt || obd_uuid_empty(&tgt->ltd_uuid))
259 /* Flags will be lowest common denominator */
260 rc = lov_connect_obd(obd, i, tgt->ltd_activate, &lov->lov_ocd);
262 CERROR("%s: lov connect tgt %d failed: %d\n",
263 obd->obd_name, i, rc);
266 /* connect to administrative disabled ost */
267 if (!lov->lov_tgts[i]->ltd_exp)
270 rc = lov_notify(obd, lov->lov_tgts[i]->ltd_exp->exp_obd,
271 OBD_NOTIFY_CONNECT, (void *)&i);
273 CERROR("%s error sending notify %d\n",
282 static int lov_disconnect_obd(struct obd_device *obd, struct lov_tgt_desc *tgt)
284 struct lov_obd *lov = &obd->u.lov;
285 struct obd_device *osc_obd;
289 osc_obd = class_exp2obd(tgt->ltd_exp);
290 CDEBUG(D_CONFIG, "%s: disconnecting target %s\n",
291 obd->obd_name, osc_obd->obd_name);
293 if (tgt->ltd_active) {
295 lov->desc.ld_active_tgt_count--;
296 tgt->ltd_exp->exp_obd->obd_inactive = 1;
300 /* Pass it on to our clients.
301 * XXX This should be an argument to disconnect,
302 * XXX not a back-door flag on the OBD. Ah well.
304 osc_obd->obd_force = obd->obd_force;
305 osc_obd->obd_fail = obd->obd_fail;
306 osc_obd->obd_no_recov = obd->obd_no_recov;
308 if (lov->targets_proc_entry != NULL)
309 lprocfs_remove_proc_entry(osc_obd->obd_name,
310 lov->targets_proc_entry);
313 obd_register_observer(osc_obd, NULL);
315 rc = obd_disconnect(tgt->ltd_exp);
317 CERROR("Target %s disconnect error %d\n",
318 tgt->ltd_uuid.uuid, rc);
326 static int lov_disconnect(struct obd_export *exp)
328 struct obd_device *obd = class_exp2obd(exp);
329 struct lov_obd *lov = &obd->u.lov;
336 /* Only disconnect the underlying layers on the final disconnect. */
338 if (lov->lov_connects != 0) {
339 /* why should there be more than 1 connect? */
340 CERROR("disconnect #%d\n", lov->lov_connects);
344 /* Let's hold another reference so lov_del_obd doesn't spin through
348 for (i = 0; i < lov->desc.ld_tgt_count; i++) {
349 if (lov->lov_tgts[i] && lov->lov_tgts[i]->ltd_exp) {
350 /* Disconnection is the last we know about an obd */
351 lov_del_target(obd, i, 0, lov->lov_tgts[i]->ltd_gen);
356 if (lov->targets_proc_entry != NULL)
357 lprocfs_remove(&lov->targets_proc_entry);
360 rc = class_disconnect(exp); /* bz 9811 */
366 * -EINVAL : UUID can't be found in the LOV's target list
367 * -ENOTCONN: The UUID is found, but the target connection is bad (!)
368 * -EBADF : The UUID is found, but the OBD is the wrong type (!)
369 * any >= 0 : is log target index
371 static int lov_set_osc_active(struct obd_device *obd, struct obd_uuid *uuid,
372 enum obd_notify_event ev)
374 struct lov_obd *lov = &obd->u.lov;
375 struct lov_tgt_desc *tgt;
376 int index, activate, active;
379 CDEBUG(D_INFO, "Searching in lov %p for uuid %s event(%d)\n",
380 lov, uuid->uuid, ev);
383 for (index = 0; index < lov->desc.ld_tgt_count; index++) {
384 tgt = lov->lov_tgts[index];
388 * LU-642, initially inactive OSC could miss the obd_connect,
389 * we make up for it here.
391 if (ev == OBD_NOTIFY_ACTIVATE && tgt->ltd_exp == NULL &&
392 obd_uuid_equals(uuid, &tgt->ltd_uuid)) {
393 struct obd_uuid lov_osc_uuid = {"LOV_OSC_UUID"};
395 obd_connect(NULL, &tgt->ltd_exp, tgt->ltd_obd,
396 &lov_osc_uuid, &lov->lov_ocd, NULL);
401 CDEBUG(D_INFO, "lov idx %d is %s conn "LPX64"\n",
402 index, obd_uuid2str(&tgt->ltd_uuid),
403 tgt->ltd_exp->exp_handle.h_cookie);
404 if (obd_uuid_equals(uuid, &tgt->ltd_uuid))
408 if (index == lov->desc.ld_tgt_count)
409 GOTO(out, index = -EINVAL);
411 if (ev == OBD_NOTIFY_DEACTIVATE || ev == OBD_NOTIFY_ACTIVATE) {
412 activate = (ev == OBD_NOTIFY_ACTIVATE) ? 1 : 0;
414 if (lov->lov_tgts[index]->ltd_activate == activate) {
415 CDEBUG(D_INFO, "OSC %s already %sactivate!\n",
416 uuid->uuid, activate ? "" : "de");
418 lov->lov_tgts[index]->ltd_activate = activate;
419 CDEBUG(D_CONFIG, "%sactivate OSC %s\n",
420 activate ? "" : "de", obd_uuid2str(uuid));
423 } else if (ev == OBD_NOTIFY_INACTIVE || ev == OBD_NOTIFY_ACTIVE) {
424 active = (ev == OBD_NOTIFY_ACTIVE) ? 1 : 0;
426 if (lov->lov_tgts[index]->ltd_active == active) {
427 CDEBUG(D_INFO, "OSC %s already %sactive!\n",
428 uuid->uuid, active ? "" : "in");
431 CDEBUG(D_CONFIG, "Marking OSC %s %sactive\n",
432 obd_uuid2str(uuid), active ? "" : "in");
435 lov->lov_tgts[index]->ltd_active = active;
437 lov->desc.ld_active_tgt_count++;
438 lov->lov_tgts[index]->ltd_exp->exp_obd->obd_inactive = 0;
440 lov->desc.ld_active_tgt_count--;
441 lov->lov_tgts[index]->ltd_exp->exp_obd->obd_inactive = 1;
444 CERROR("Unknown event(%d) for uuid %s", ev, uuid->uuid);
452 static int lov_notify(struct obd_device *obd, struct obd_device *watched,
453 enum obd_notify_event ev, void *data)
456 struct lov_obd *lov = &obd->u.lov;
459 down_read(&lov->lov_notify_lock);
460 if (!lov->lov_connects) {
461 up_read(&lov->lov_notify_lock);
465 if (ev == OBD_NOTIFY_ACTIVE || ev == OBD_NOTIFY_INACTIVE ||
466 ev == OBD_NOTIFY_ACTIVATE || ev == OBD_NOTIFY_DEACTIVATE) {
467 struct obd_uuid *uuid;
471 if (strcmp(watched->obd_type->typ_name, LUSTRE_OSC_NAME)) {
472 up_read(&lov->lov_notify_lock);
473 CERROR("unexpected notification of %s %s!\n",
474 watched->obd_type->typ_name,
478 uuid = &watched->u.cli.cl_target_uuid;
480 /* Set OSC as active before notifying the observer, so the
481 * observer can use the OSC normally.
483 rc = lov_set_osc_active(obd, uuid, ev);
485 up_read(&lov->lov_notify_lock);
486 CERROR("event(%d) of %s failed: %d\n", ev,
487 obd_uuid2str(uuid), rc);
490 /* active event should be pass lov target index as data */
494 /* Pass the notification up the chain. */
496 rc = obd_notify_observer(obd, watched, ev, data);
498 /* NULL watched means all osc's in the lov (only for syncs) */
499 /* sync event should be send lov idx as data */
500 struct lov_obd *lov = &obd->u.lov;
504 is_sync = (ev == OBD_NOTIFY_SYNC) ||
505 (ev == OBD_NOTIFY_SYNC_NONBLOCK);
508 for (i = 0; i < lov->desc.ld_tgt_count; i++) {
509 if (!lov->lov_tgts[i])
512 /* don't send sync event if target not
513 * connected/activated */
514 if (is_sync && !lov->lov_tgts[i]->ltd_active)
517 rc = obd_notify_observer(obd, lov->lov_tgts[i]->ltd_obd,
520 CERROR("%s: notify %s of %s failed %d\n",
522 obd->obd_observer->obd_name,
523 lov->lov_tgts[i]->ltd_obd->obd_name,
530 up_read(&lov->lov_notify_lock);
534 static int lov_add_target(struct obd_device *obd, struct obd_uuid *uuidp,
535 __u32 index, int gen, int active)
537 struct lov_obd *lov = &obd->u.lov;
538 struct lov_tgt_desc *tgt;
539 struct obd_device *tgt_obd;
543 CDEBUG(D_CONFIG, "uuid:%s idx:%d gen:%d active:%d\n",
544 uuidp->uuid, index, gen, active);
547 CERROR("request to add OBD %s with invalid generation: %d\n",
552 tgt_obd = class_find_client_obd(uuidp, LUSTRE_OSC_NAME,
557 mutex_lock(&lov->lov_lock);
559 if ((index < lov->lov_tgt_size) && (lov->lov_tgts[index] != NULL)) {
560 tgt = lov->lov_tgts[index];
561 CERROR("UUID %s already assigned at LOV target index %d\n",
562 obd_uuid2str(&tgt->ltd_uuid), index);
563 mutex_unlock(&lov->lov_lock);
567 if (index >= lov->lov_tgt_size) {
568 /* We need to reallocate the lov target array. */
569 struct lov_tgt_desc **newtgts, **old = NULL;
570 __u32 newsize, oldsize = 0;
572 newsize = max(lov->lov_tgt_size, (__u32)2);
573 while (newsize < index + 1)
574 newsize = newsize << 1;
575 OBD_ALLOC(newtgts, sizeof(*newtgts) * newsize);
576 if (newtgts == NULL) {
577 mutex_unlock(&lov->lov_lock);
581 if (lov->lov_tgt_size) {
582 memcpy(newtgts, lov->lov_tgts, sizeof(*newtgts) *
585 oldsize = lov->lov_tgt_size;
588 lov->lov_tgts = newtgts;
589 lov->lov_tgt_size = newsize;
592 OBD_FREE(old, sizeof(*old) * oldsize);
594 CDEBUG(D_CONFIG, "tgts: %p size: %d\n",
595 lov->lov_tgts, lov->lov_tgt_size);
600 mutex_unlock(&lov->lov_lock);
604 rc = lov_ost_pool_add(&lov->lov_packed, index, lov->lov_tgt_size);
606 mutex_unlock(&lov->lov_lock);
611 tgt->ltd_uuid = *uuidp;
612 tgt->ltd_obd = tgt_obd;
613 /* XXX - add a sanity check on the generation number. */
615 tgt->ltd_index = index;
616 tgt->ltd_activate = active;
617 lov->lov_tgts[index] = tgt;
618 if (index >= lov->desc.ld_tgt_count)
619 lov->desc.ld_tgt_count = index + 1;
621 mutex_unlock(&lov->lov_lock);
623 CDEBUG(D_CONFIG, "idx=%d ltd_gen=%d ld_tgt_count=%d\n",
624 index, tgt->ltd_gen, lov->desc.ld_tgt_count);
626 rc = obd_notify(obd, tgt_obd, OBD_NOTIFY_CREATE, &index);
628 if (lov->lov_connects == 0) {
629 /* lov_connect hasn't been called yet. We'll do the
630 lov_connect_obd on this target when that fn first runs,
631 because we don't know the connect flags yet. */
637 rc = lov_connect_obd(obd, index, active, &lov->lov_ocd);
641 /* connect to administrative disabled ost */
645 if (lov->lov_cache != NULL) {
646 rc = obd_set_info_async(NULL, tgt->ltd_exp,
647 sizeof(KEY_CACHE_SET), KEY_CACHE_SET,
648 sizeof(struct cl_client_cache), lov->lov_cache,
654 rc = lov_notify(obd, tgt->ltd_exp->exp_obd,
655 active ? OBD_NOTIFY_CONNECT : OBD_NOTIFY_INACTIVE,
660 CERROR("add failed (%d), deleting %s\n", rc,
661 obd_uuid2str(&tgt->ltd_uuid));
662 lov_del_target(obd, index, 0, 0);
668 /* Schedule a target for deletion */
669 int lov_del_target(struct obd_device *obd, __u32 index,
670 struct obd_uuid *uuidp, int gen)
672 struct lov_obd *lov = &obd->u.lov;
673 int count = lov->desc.ld_tgt_count;
677 if (index >= count) {
678 CERROR("LOV target index %d >= number of LOV OBDs %d.\n",
683 /* to make sure there's no ongoing lov_notify() now */
684 down_write(&lov->lov_notify_lock);
687 if (!lov->lov_tgts[index]) {
688 CERROR("LOV target at index %d is not setup.\n", index);
689 GOTO(out, rc = -EINVAL);
692 if (uuidp && !obd_uuid_equals(uuidp, &lov->lov_tgts[index]->ltd_uuid)) {
693 CERROR("LOV target UUID %s at index %d doesn't match %s.\n",
694 lov_uuid2str(lov, index), index,
695 obd_uuid2str(uuidp));
696 GOTO(out, rc = -EINVAL);
699 CDEBUG(D_CONFIG, "uuid: %s idx: %d gen: %d exp: %p active: %d\n",
700 lov_uuid2str(lov, index), index,
701 lov->lov_tgts[index]->ltd_gen, lov->lov_tgts[index]->ltd_exp,
702 lov->lov_tgts[index]->ltd_active);
704 lov->lov_tgts[index]->ltd_reap = 1;
705 lov->lov_death_row++;
706 /* we really delete it from obd_putref */
709 up_write(&lov->lov_notify_lock);
714 static void __lov_del_obd(struct obd_device *obd, struct lov_tgt_desc *tgt)
716 struct obd_device *osc_obd;
719 LASSERT(tgt->ltd_reap);
721 osc_obd = class_exp2obd(tgt->ltd_exp);
723 CDEBUG(D_CONFIG, "Removing tgt %s : %s\n",
725 osc_obd ? osc_obd->obd_name : "<no obd>");
728 lov_disconnect_obd(obd, tgt);
732 /* Manual cleanup - no cleanup logs to clean up the osc's. We must
733 do it ourselves. And we can't do it from lov_cleanup,
734 because we just lost our only reference to it. */
736 class_manual_cleanup(osc_obd);
739 void lov_fix_desc_stripe_size(__u64 *val)
741 if (*val < LOV_MIN_STRIPE_SIZE) {
743 LCONSOLE_INFO("Increasing default stripe size to "
745 LOV_DESC_STRIPE_SIZE_DEFAULT);
746 *val = LOV_DESC_STRIPE_SIZE_DEFAULT;
747 } else if (*val & (LOV_MIN_STRIPE_SIZE - 1)) {
748 *val &= ~(LOV_MIN_STRIPE_SIZE - 1);
749 LCONSOLE_WARN("Changing default stripe size to "LPU64" (a "
751 *val, LOV_MIN_STRIPE_SIZE);
755 void lov_fix_desc_stripe_count(__u32 *val)
761 void lov_fix_desc_pattern(__u32 *val)
763 /* from lov_setstripe */
764 if ((*val != 0) && (*val != LOV_PATTERN_RAID0)) {
765 LCONSOLE_WARN("Unknown stripe pattern: %#x\n", *val);
770 void lov_fix_desc_qos_maxage(__u32 *val)
773 *val = LOV_DESC_QOS_MAXAGE_DEFAULT;
776 void lov_fix_desc(struct lov_desc *desc)
778 lov_fix_desc_stripe_size(&desc->ld_default_stripe_size);
779 lov_fix_desc_stripe_count(&desc->ld_default_stripe_count);
780 lov_fix_desc_pattern(&desc->ld_pattern);
781 lov_fix_desc_qos_maxage(&desc->ld_qos_maxage);
784 int lov_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
786 struct lov_desc *desc;
787 struct lov_obd *lov = &obd->u.lov;
789 struct obd_type *type;
794 if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1) {
795 CERROR("LOV setup requires a descriptor\n");
799 desc = (struct lov_desc *)lustre_cfg_buf(lcfg, 1);
801 if (sizeof(*desc) > LUSTRE_CFG_BUFLEN(lcfg, 1)) {
802 CERROR("descriptor size wrong: %d > %d\n",
803 (int)sizeof(*desc), LUSTRE_CFG_BUFLEN(lcfg, 1));
807 if (desc->ld_magic != LOV_DESC_MAGIC) {
808 if (desc->ld_magic == __swab32(LOV_DESC_MAGIC)) {
809 CDEBUG(D_OTHER, "%s: Swabbing lov desc %p\n",
810 obd->obd_name, desc);
811 lustre_swab_lov_desc(desc);
813 CERROR("%s: Bad lov desc magic: %#x\n",
814 obd->obd_name, desc->ld_magic);
821 desc->ld_active_tgt_count = 0;
823 lov->lov_tgt_size = 0;
825 mutex_init(&lov->lov_lock);
826 atomic_set(&lov->lov_refcount, 0);
827 lov->lov_sp_me = LUSTRE_SP_CLI;
829 init_rwsem(&lov->lov_notify_lock);
831 lov->lov_pools_hash_body = cfs_hash_create("POOLS", HASH_POOLS_CUR_BITS,
833 HASH_POOLS_BKT_BITS, 0,
836 &pool_hash_operations,
838 INIT_LIST_HEAD(&lov->lov_pool_list);
839 lov->lov_pool_count = 0;
840 rc = lov_ost_pool_init(&lov->lov_packed, 0);
845 obd->obd_vars = lprocfs_lov_obd_vars;
846 /* If this is true then both client (lov) and server
847 * (lod) are on the same node. The lod layer if loaded
848 * first will register the lov proc directory. In that
849 * case obd->obd_type->typ_procroot will be not set.
850 * Instead we use type->typ_procsym as the parent. */
851 type = class_search_type(LUSTRE_LOD_NAME);
852 if (type != NULL && type->typ_procsym != NULL) {
853 obd->obd_proc_entry = lprocfs_seq_register(obd->obd_name,
856 if (IS_ERR(obd->obd_proc_entry)) {
857 rc = PTR_ERR(obd->obd_proc_entry);
858 CERROR("error %d setting up lprocfs for %s\n", rc,
860 obd->obd_proc_entry = NULL;
863 rc = lprocfs_seq_obd_setup(obd);
867 rc = lprocfs_seq_create(obd->obd_proc_entry, "target_obd",
868 0444, &lov_proc_target_fops, obd);
870 CWARN("Error adding the target_obd file\n");
872 lov->lov_pool_proc_entry = lprocfs_seq_register("pools",
875 if (IS_ERR(lov->lov_pool_proc_entry)) {
876 rc = PTR_ERR(lov->lov_pool_proc_entry);
877 CERROR("error %d setting up lprocfs for pools\n", rc);
878 lov->lov_pool_proc_entry = NULL;
888 static int lov_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
891 struct lov_obd *lov = &obd->u.lov;
896 case OBD_CLEANUP_EARLY: {
898 for (i = 0; i < lov->desc.ld_tgt_count; i++) {
899 if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_active)
901 obd_precleanup(class_exp2obd(lov->lov_tgts[i]->ltd_exp),
913 static int lov_cleanup(struct obd_device *obd)
915 struct lov_obd *lov = &obd->u.lov;
916 struct list_head *pos, *tmp;
917 struct pool_desc *pool;
920 list_for_each_safe(pos, tmp, &lov->lov_pool_list) {
921 pool = list_entry(pos, struct pool_desc, pool_list);
922 /* free pool structs */
923 CDEBUG(D_INFO, "delete pool %p\n", pool);
924 /* In the function below, .hs_keycmp resolves to
925 * pool_hashkey_keycmp() */
926 /* coverity[overrun-buffer-val] */
927 lov_pool_del(obd, pool->pool_name);
929 cfs_hash_putref(lov->lov_pools_hash_body);
930 lov_ost_pool_free(&lov->lov_packed);
932 lprocfs_obd_cleanup(obd);
936 for (i = 0; i < lov->desc.ld_tgt_count; i++) {
937 if (!lov->lov_tgts[i])
940 /* Inactive targets may never have connected */
941 if (lov->lov_tgts[i]->ltd_active ||
942 atomic_read(&lov->lov_refcount))
943 /* We should never get here - these
944 * should have been removed in the
946 CERROR("%s: lov tgt %d not cleaned! "
947 "deathrow=%d, lovrc=%d\n",
948 obd->obd_name, i, lov->lov_death_row,
949 atomic_read(&lov->lov_refcount));
950 lov_del_target(obd, i, 0, 0);
953 OBD_FREE(lov->lov_tgts, sizeof(*lov->lov_tgts) *
955 lov->lov_tgt_size = 0;
960 int lov_process_config_base(struct obd_device *obd, struct lustre_cfg *lcfg,
961 __u32 *indexp, int *genp)
963 struct obd_uuid obd_uuid;
968 switch(cmd = lcfg->lcfg_command) {
969 case LCFG_LOV_ADD_OBD:
970 case LCFG_LOV_ADD_INA:
971 case LCFG_LOV_DEL_OBD: {
974 /* lov_modify_tgts add 0:lov_mdsA 1:ost1_UUID 2:0 3:1 */
975 if (LUSTRE_CFG_BUFLEN(lcfg, 1) > sizeof(obd_uuid.uuid))
976 GOTO(out, rc = -EINVAL);
978 obd_str2uuid(&obd_uuid, lustre_cfg_buf(lcfg, 1));
980 if (sscanf(lustre_cfg_buf(lcfg, 2), "%u", indexp) != 1)
981 GOTO(out, rc = -EINVAL);
982 if (sscanf(lustre_cfg_buf(lcfg, 3), "%d", genp) != 1)
983 GOTO(out, rc = -EINVAL);
986 if (cmd == LCFG_LOV_ADD_OBD)
987 rc = lov_add_target(obd, &obd_uuid, index, gen, 1);
988 else if (cmd == LCFG_LOV_ADD_INA)
989 rc = lov_add_target(obd, &obd_uuid, index, gen, 0);
991 rc = lov_del_target(obd, index, &obd_uuid, gen);
995 struct lov_desc *desc = &(obd->u.lov.desc);
998 GOTO(out, rc = -EINVAL);
1000 rc = class_process_proc_seq_param(PARAM_LOV, obd->obd_vars,
1013 CERROR("Unknown command: %d\n", lcfg->lcfg_command);
1014 GOTO(out, rc = -EINVAL);
1022 static int lov_recreate(struct obd_export *exp, struct obdo *src_oa,
1023 struct lov_stripe_md **ea, struct obd_trans_info *oti)
1025 struct lov_stripe_md *obj_mdp, *lsm;
1026 struct lov_obd *lov = &exp->exp_obd->u.lov;
1031 LASSERT(src_oa->o_valid & OBD_MD_FLFLAGS &&
1032 src_oa->o_flags & OBD_FL_RECREATE_OBJS);
1034 OBD_ALLOC(obj_mdp, sizeof(*obj_mdp));
1035 if (obj_mdp == NULL)
1038 ost_idx = src_oa->o_nlink;
1041 GOTO(out, rc = -EINVAL);
1042 if (ost_idx >= lov->desc.ld_tgt_count ||
1043 !lov->lov_tgts[ost_idx])
1044 GOTO(out, rc = -EINVAL);
1046 for (i = 0; i < lsm->lsm_stripe_count; i++) {
1047 struct lov_oinfo *loi = lsm->lsm_oinfo[i];
1049 if (lov_oinfo_is_dummy(loi))
1052 if (loi->loi_ost_idx == ost_idx) {
1053 if (ostid_id(&loi->loi_oi) !=
1054 ostid_id(&src_oa->o_oi))
1055 GOTO(out, rc = -EINVAL);
1059 if (i == lsm->lsm_stripe_count)
1060 GOTO(out, rc = -EINVAL);
1062 rc = obd_create(NULL, lov->lov_tgts[ost_idx]->ltd_exp,
1063 src_oa, &obj_mdp, oti);
1065 OBD_FREE(obj_mdp, sizeof(*obj_mdp));
1069 /* the LOV expects oa->o_id to be set to the LOV object id */
1070 static int lov_create(const struct lu_env *env, struct obd_export *exp,
1071 struct obdo *src_oa, struct lov_stripe_md **ea,
1072 struct obd_trans_info *oti)
1074 struct lov_obd *lov;
1078 LASSERT(ea != NULL);
1082 if ((src_oa->o_valid & OBD_MD_FLFLAGS) &&
1083 src_oa->o_flags == OBD_FL_DELORPHAN) {
1084 /* should be used with LOV anymore */
1088 lov = &exp->exp_obd->u.lov;
1089 if (!lov->desc.ld_active_tgt_count)
1092 obd_getref(exp->exp_obd);
1093 /* Recreate a specific object id at the given OST index */
1094 if ((src_oa->o_valid & OBD_MD_FLFLAGS) &&
1095 (src_oa->o_flags & OBD_FL_RECREATE_OBJS)) {
1096 rc = lov_recreate(exp, src_oa, ea, oti);
1099 obd_putref(exp->exp_obd);
1103 #define ASSERT_LSM_MAGIC(lsmp) \
1105 LASSERT((lsmp) != NULL); \
1106 LASSERTF(((lsmp)->lsm_magic == LOV_MAGIC_V1 || \
1107 (lsmp)->lsm_magic == LOV_MAGIC_V3), \
1108 "%p->lsm_magic=%x\n", (lsmp), (lsmp)->lsm_magic); \
1111 static int lov_destroy(const struct lu_env *env, struct obd_export *exp,
1112 struct obdo *oa, struct lov_stripe_md *lsm,
1113 struct obd_trans_info *oti, struct obd_export *md_exp,
1116 struct lov_request_set *set;
1117 struct obd_info oinfo;
1118 struct lov_request *req;
1119 struct list_head *pos;
1120 struct lov_obd *lov;
1121 int rc = 0, err = 0;
1124 ASSERT_LSM_MAGIC(lsm);
1126 if (!exp || !exp->exp_obd)
1129 if (oa->o_valid & OBD_MD_FLCOOKIE) {
1131 LASSERT(oti->oti_logcookies);
1134 lov = &exp->exp_obd->u.lov;
1135 obd_getref(exp->exp_obd);
1136 rc = lov_prep_destroy_set(exp, &oinfo, oa, lsm, oti, &set);
1140 list_for_each(pos, &set->set_list) {
1141 req = list_entry(pos, struct lov_request, rq_link);
1143 if (oa->o_valid & OBD_MD_FLCOOKIE)
1144 oti->oti_logcookies = set->set_cookies + req->rq_stripe;
1146 err = obd_destroy(env, lov->lov_tgts[req->rq_idx]->ltd_exp,
1147 req->rq_oi.oi_oa, NULL, oti, NULL, capa);
1148 err = lov_update_common_set(set, req, err);
1150 CERROR("%s: destroying objid "DOSTID" subobj "
1151 DOSTID" on OST idx %d: rc = %d\n",
1152 exp->exp_obd->obd_name, POSTID(&oa->o_oi),
1153 POSTID(&req->rq_oi.oi_oa->o_oi),
1161 LASSERT(lsm_op_find(lsm->lsm_magic) != NULL);
1162 rc = lsm_op_find(lsm->lsm_magic)->lsm_destroy(lsm, oa, md_exp);
1164 err = lov_fini_destroy_set(set);
1166 obd_putref(exp->exp_obd);
1167 RETURN(rc ? rc : err);
1170 static int lov_getattr_interpret(struct ptlrpc_request_set *rqset,
1173 struct lov_request_set *lovset = (struct lov_request_set *)data;
1177 /* don't do attribute merge if this aysnc op failed */
1179 atomic_set(&lovset->set_completes, 0);
1180 err = lov_fini_getattr_set(lovset);
1181 RETURN(rc ? rc : err);
1184 static int lov_getattr_async(struct obd_export *exp, struct obd_info *oinfo,
1185 struct ptlrpc_request_set *rqset)
1187 struct lov_request_set *lovset;
1188 struct lov_obd *lov;
1189 struct list_head *pos;
1190 struct lov_request *req;
1195 ASSERT_LSM_MAGIC(oinfo->oi_md);
1197 if (!exp || !exp->exp_obd)
1200 lov = &exp->exp_obd->u.lov;
1202 rc = lov_prep_getattr_set(exp, oinfo, &lovset);
1206 CDEBUG(D_INFO, "objid "DOSTID": %ux%u byte stripes\n",
1207 POSTID(&oinfo->oi_md->lsm_oi), oinfo->oi_md->lsm_stripe_count,
1208 oinfo->oi_md->lsm_stripe_size);
1210 list_for_each(pos, &lovset->set_list) {
1211 req = list_entry(pos, struct lov_request, rq_link);
1213 CDEBUG(D_INFO, "objid "DOSTID"[%d] has subobj "DOSTID" at idx"
1214 "%u\n", POSTID(&oinfo->oi_oa->o_oi), req->rq_stripe,
1215 POSTID(&req->rq_oi.oi_oa->o_oi), req->rq_idx);
1216 rc = obd_getattr_async(lov->lov_tgts[req->rq_idx]->ltd_exp,
1217 &req->rq_oi, rqset);
1219 CERROR("%s: getattr objid "DOSTID" subobj"
1220 DOSTID" on OST idx %d: rc = %d\n",
1221 exp->exp_obd->obd_name,
1222 POSTID(&oinfo->oi_oa->o_oi),
1223 POSTID(&req->rq_oi.oi_oa->o_oi),
1229 if (!list_empty(&rqset->set_requests)) {
1231 LASSERT (rqset->set_interpret == NULL);
1232 rqset->set_interpret = lov_getattr_interpret;
1233 rqset->set_arg = (void *)lovset;
1238 atomic_set(&lovset->set_completes, 0);
1239 err = lov_fini_getattr_set(lovset);
1240 RETURN(rc ? rc : err);
1243 static int lov_setattr_interpret(struct ptlrpc_request_set *rqset,
1246 struct lov_request_set *lovset = (struct lov_request_set *)data;
1251 atomic_set(&lovset->set_completes, 0);
1252 err = lov_fini_setattr_set(lovset);
1253 RETURN(rc ? rc : err);
1256 /* If @oti is given, the request goes from MDS and responses from OSTs are not
1257 needed. Otherwise, a client is waiting for responses. */
1258 static int lov_setattr_async(struct obd_export *exp, struct obd_info *oinfo,
1259 struct obd_trans_info *oti,
1260 struct ptlrpc_request_set *rqset)
1262 struct lov_request_set *set;
1263 struct lov_request *req;
1264 struct list_head *pos;
1265 struct lov_obd *lov;
1270 ASSERT_LSM_MAGIC(oinfo->oi_md);
1271 if (oinfo->oi_oa->o_valid & OBD_MD_FLCOOKIE) {
1273 LASSERT(oti->oti_logcookies);
1276 if (!exp || !exp->exp_obd)
1279 lov = &exp->exp_obd->u.lov;
1280 rc = lov_prep_setattr_set(exp, oinfo, oti, &set);
1284 CDEBUG(D_INFO, "objid "DOSTID": %ux%u byte stripes\n",
1285 POSTID(&oinfo->oi_md->lsm_oi),
1286 oinfo->oi_md->lsm_stripe_count,
1287 oinfo->oi_md->lsm_stripe_size);
1289 list_for_each(pos, &set->set_list) {
1290 req = list_entry(pos, struct lov_request, rq_link);
1292 if (oinfo->oi_oa->o_valid & OBD_MD_FLCOOKIE)
1293 oti->oti_logcookies = set->set_cookies + req->rq_stripe;
1295 CDEBUG(D_INFO, "objid "DOSTID"[%d] has subobj "DOSTID" at idx"
1296 "%u\n", POSTID(&oinfo->oi_oa->o_oi), req->rq_stripe,
1297 POSTID(&req->rq_oi.oi_oa->o_oi), req->rq_idx);
1299 rc = obd_setattr_async(lov->lov_tgts[req->rq_idx]->ltd_exp,
1300 &req->rq_oi, oti, rqset);
1302 CERROR("error: setattr objid "DOSTID" subobj"
1303 DOSTID" on OST idx %d: rc = %d\n",
1304 POSTID(&set->set_oi->oi_oa->o_oi),
1305 POSTID(&req->rq_oi.oi_oa->o_oi),
1311 /* If we are not waiting for responses on async requests, return. */
1312 if (rc || !rqset || list_empty(&rqset->set_requests)) {
1315 atomic_set(&set->set_completes, 0);
1316 err = lov_fini_setattr_set(set);
1317 RETURN(rc ? rc : err);
1320 LASSERT(rqset->set_interpret == NULL);
1321 rqset->set_interpret = lov_setattr_interpret;
1322 rqset->set_arg = (void *)set;
1327 static int lov_change_cbdata(struct obd_export *exp,
1328 struct lov_stripe_md *lsm, ldlm_iterator_t it,
1331 struct lov_obd *lov;
1335 ASSERT_LSM_MAGIC(lsm);
1337 if (!exp || !exp->exp_obd)
1340 lov = &exp->exp_obd->u.lov;
1341 for (i = 0; i < lsm->lsm_stripe_count; i++) {
1342 struct lov_stripe_md submd;
1343 struct lov_oinfo *loi = lsm->lsm_oinfo[i];
1345 if (lov_oinfo_is_dummy(loi))
1348 if (!lov->lov_tgts[loi->loi_ost_idx]) {
1349 CDEBUG(D_HA, "lov idx %d NULL\n", loi->loi_ost_idx);
1353 submd.lsm_oi = loi->loi_oi;
1354 submd.lsm_stripe_count = 0;
1355 rc = obd_change_cbdata(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
1361 /* find any ldlm lock of the inode in lov
1365 static int lov_find_cbdata(struct obd_export *exp,
1366 struct lov_stripe_md *lsm, ldlm_iterator_t it,
1369 struct lov_obd *lov;
1373 ASSERT_LSM_MAGIC(lsm);
1375 if (!exp || !exp->exp_obd)
1378 lov = &exp->exp_obd->u.lov;
1379 for (i = 0; i < lsm->lsm_stripe_count; i++) {
1380 struct lov_stripe_md submd;
1381 struct lov_oinfo *loi = lsm->lsm_oinfo[i];
1383 if (lov_oinfo_is_dummy(loi))
1386 if (!lov->lov_tgts[loi->loi_ost_idx]) {
1387 CDEBUG(D_HA, "lov idx %d NULL\n", loi->loi_ost_idx);
1391 submd.lsm_oi = loi->loi_oi;
1392 submd.lsm_stripe_count = 0;
1393 rc = obd_find_cbdata(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
1401 int lov_statfs_interpret(struct ptlrpc_request_set *rqset, void *data, int rc)
1403 struct lov_request_set *lovset = (struct lov_request_set *)data;
1408 atomic_set(&lovset->set_completes, 0);
1410 err = lov_fini_statfs_set(lovset);
1411 RETURN(rc ? rc : err);
1414 static int lov_statfs_async(struct obd_export *exp, struct obd_info *oinfo,
1415 __u64 max_age, struct ptlrpc_request_set *rqset)
1417 struct obd_device *obd = class_exp2obd(exp);
1418 struct lov_request_set *set;
1419 struct lov_request *req;
1420 struct list_head *pos;
1421 struct lov_obd *lov;
1425 LASSERT(oinfo != NULL);
1426 LASSERT(oinfo->oi_osfs != NULL);
1429 rc = lov_prep_statfs_set(obd, oinfo, &set);
1433 list_for_each(pos, &set->set_list) {
1434 req = list_entry(pos, struct lov_request, rq_link);
1435 rc = obd_statfs_async(lov->lov_tgts[req->rq_idx]->ltd_exp,
1436 &req->rq_oi, max_age, rqset);
1441 if (rc || list_empty(&rqset->set_requests)) {
1444 atomic_set(&set->set_completes, 0);
1445 err = lov_fini_statfs_set(set);
1446 RETURN(rc ? rc : err);
1449 LASSERT(rqset->set_interpret == NULL);
1450 rqset->set_interpret = lov_statfs_interpret;
1451 rqset->set_arg = (void *)set;
1455 static int lov_statfs(const struct lu_env *env, struct obd_export *exp,
1456 struct obd_statfs *osfs, __u64 max_age, __u32 flags)
1458 struct ptlrpc_request_set *set = NULL;
1459 struct obd_info oinfo = { { { 0 } } };
1464 /* for obdclass we forbid using obd_statfs_rqset, but prefer using async
1465 * statfs requests */
1466 set = ptlrpc_prep_set();
1470 oinfo.oi_osfs = osfs;
1471 oinfo.oi_flags = flags;
1472 rc = lov_statfs_async(exp, &oinfo, max_age, set);
1474 rc = ptlrpc_set_wait(set);
1475 ptlrpc_set_destroy(set);
1480 static int lov_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
1481 void *karg, void *uarg)
1483 struct obd_device *obddev = class_exp2obd(exp);
1484 struct lov_obd *lov = &obddev->u.lov;
1485 int i = 0, rc = 0, count = lov->desc.ld_tgt_count;
1486 struct obd_uuid *uuidp;
1490 case IOC_OBD_STATFS: {
1491 struct obd_ioctl_data *data = karg;
1492 struct obd_device *osc_obd;
1493 struct obd_statfs stat_buf = {0};
1497 memcpy(&index, data->ioc_inlbuf2, sizeof(__u32));
1498 if ((index >= count))
1501 if (!lov->lov_tgts[index])
1502 /* Try again with the next index */
1504 if (!lov->lov_tgts[index]->ltd_active)
1507 osc_obd = class_exp2obd(lov->lov_tgts[index]->ltd_exp);
1512 if (copy_to_user(data->ioc_pbuf2, obd2cli_tgt(osc_obd),
1513 min((int)data->ioc_plen2,
1514 (int)sizeof(struct obd_uuid))))
1517 flags = uarg ? *(__u32*)uarg : 0;
1518 /* got statfs data */
1519 rc = obd_statfs(NULL, lov->lov_tgts[index]->ltd_exp, &stat_buf,
1520 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
1524 if (copy_to_user(data->ioc_pbuf1, &stat_buf,
1525 min((int) data->ioc_plen1,
1526 (int) sizeof(stat_buf))))
1530 case OBD_IOC_LOV_GET_CONFIG: {
1531 struct obd_ioctl_data *data;
1532 struct lov_desc *desc;
1537 if (obd_ioctl_getdata(&buf, &len, (void *)uarg))
1540 data = (struct obd_ioctl_data *)buf;
1542 if (sizeof(*desc) > data->ioc_inllen1) {
1543 obd_ioctl_freedata(buf, len);
1547 if (sizeof(uuidp->uuid) * count > data->ioc_inllen2) {
1548 obd_ioctl_freedata(buf, len);
1552 if (sizeof(__u32) * count > data->ioc_inllen3) {
1553 obd_ioctl_freedata(buf, len);
1557 desc = (struct lov_desc *)data->ioc_inlbuf1;
1558 memcpy(desc, &(lov->desc), sizeof(*desc));
1560 uuidp = (struct obd_uuid *)data->ioc_inlbuf2;
1561 genp = (__u32 *)data->ioc_inlbuf3;
1562 /* the uuid will be empty for deleted OSTs */
1563 for (i = 0; i < count; i++, uuidp++, genp++) {
1564 if (!lov->lov_tgts[i])
1566 *uuidp = lov->lov_tgts[i]->ltd_uuid;
1567 *genp = lov->lov_tgts[i]->ltd_gen;
1570 if (copy_to_user((void *)uarg, buf, len))
1572 obd_ioctl_freedata(buf, len);
1575 case LL_IOC_LOV_GETSTRIPE:
1576 rc = lov_getstripe(exp, karg, uarg);
1578 case OBD_IOC_QUOTACTL: {
1579 struct if_quotactl *qctl = karg;
1580 struct lov_tgt_desc *tgt = NULL;
1581 struct obd_quotactl *oqctl;
1583 if (qctl->qc_valid == QC_OSTIDX) {
1584 if (count <= qctl->qc_idx)
1587 tgt = lov->lov_tgts[qctl->qc_idx];
1588 if (!tgt || !tgt->ltd_exp)
1590 } else if (qctl->qc_valid == QC_UUID) {
1591 for (i = 0; i < count; i++) {
1592 tgt = lov->lov_tgts[i];
1594 !obd_uuid_equals(&tgt->ltd_uuid,
1598 if (tgt->ltd_exp == NULL)
1610 LASSERT(tgt && tgt->ltd_exp);
1611 OBD_ALLOC_PTR(oqctl);
1615 QCTL_COPY(oqctl, qctl);
1616 rc = obd_quotactl(tgt->ltd_exp, oqctl);
1618 QCTL_COPY(qctl, oqctl);
1619 qctl->qc_valid = QC_OSTIDX;
1620 qctl->obd_uuid = tgt->ltd_uuid;
1622 OBD_FREE_PTR(oqctl);
1631 for (i = 0; i < count; i++) {
1633 struct obd_device *osc_obd;
1635 /* OST was disconnected */
1636 if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_exp)
1639 /* ll_umount_begin() sets force flag but for lov, not
1640 * osc. Let's pass it through */
1641 osc_obd = class_exp2obd(lov->lov_tgts[i]->ltd_exp);
1642 osc_obd->obd_force = obddev->obd_force;
1643 err = obd_iocontrol(cmd, lov->lov_tgts[i]->ltd_exp,
1645 if (err == -ENODATA && cmd == OBD_IOC_POLL_QUOTACHECK) {
1648 if (lov->lov_tgts[i]->ltd_active) {
1649 CDEBUG(err == -ENOTTY ?
1650 D_IOCTL : D_WARNING,
1651 "iocontrol OSC %s on OST "
1652 "idx %d cmd %x: err = %d\n",
1653 lov_uuid2str(lov, i),
1670 #define FIEMAP_BUFFER_SIZE 4096
1673 * Non-zero fe_logical indicates that this is a continuation FIEMAP
1674 * call. The local end offset and the device are sent in the first
1675 * fm_extent. This function calculates the stripe number from the index.
1676 * This function returns a stripe_no on which mapping is to be restarted.
1678 * This function returns fm_end_offset which is the in-OST offset at which
1679 * mapping should be restarted. If fm_end_offset=0 is returned then caller
1680 * will re-calculate proper offset in next stripe.
1681 * Note that the first extent is passed to lov_get_info via the value field.
1683 * \param fiemap fiemap request header
1684 * \param lsm striping information for the file
1685 * \param fm_start logical start of mapping
1686 * \param fm_end logical end of mapping
1687 * \param start_stripe starting stripe will be returned in this
1689 obd_size fiemap_calc_fm_end_offset(struct ll_user_fiemap *fiemap,
1690 struct lov_stripe_md *lsm, obd_size fm_start,
1691 obd_size fm_end, int *start_stripe)
1693 obd_size local_end = fiemap->fm_extents[0].fe_logical;
1694 obd_off lun_start, lun_end;
1695 obd_size fm_end_offset;
1696 int stripe_no = -1, i;
1698 if (fiemap->fm_extent_count == 0 ||
1699 fiemap->fm_extents[0].fe_logical == 0)
1702 /* Find out stripe_no from ost_index saved in the fe_device */
1703 for (i = 0; i < lsm->lsm_stripe_count; i++) {
1704 struct lov_oinfo *oinfo = lsm->lsm_oinfo[i];
1706 if (lov_oinfo_is_dummy(oinfo))
1709 if (oinfo->loi_ost_idx == fiemap->fm_extents[0].fe_device) {
1715 if (stripe_no == -1)
1718 /* If we have finished mapping on previous device, shift logical
1719 * offset to start of next device */
1720 if ((lov_stripe_intersects(lsm, stripe_no, fm_start, fm_end,
1721 &lun_start, &lun_end)) != 0 &&
1722 local_end < lun_end) {
1723 fm_end_offset = local_end;
1724 *start_stripe = stripe_no;
1726 /* This is a special value to indicate that caller should
1727 * calculate offset in next stripe. */
1729 *start_stripe = (stripe_no + 1) % lsm->lsm_stripe_count;
1732 return fm_end_offset;
1736 * We calculate on which OST the mapping will end. If the length of mapping
1737 * is greater than (stripe_size * stripe_count) then the last_stripe will
1738 * will be one just before start_stripe. Else we check if the mapping
1739 * intersects each OST and find last_stripe.
1740 * This function returns the last_stripe and also sets the stripe_count
1741 * over which the mapping is spread
1743 * \param lsm striping information for the file
1744 * \param fm_start logical start of mapping
1745 * \param fm_end logical end of mapping
1746 * \param start_stripe starting stripe of the mapping
1747 * \param stripe_count the number of stripes across which to map is returned
1749 * \retval last_stripe return the last stripe of the mapping
1751 int fiemap_calc_last_stripe(struct lov_stripe_md *lsm, obd_size fm_start,
1752 obd_size fm_end, int start_stripe,
1756 obd_off obd_start, obd_end;
1759 if (fm_end - fm_start > lsm->lsm_stripe_size * lsm->lsm_stripe_count) {
1760 last_stripe = (start_stripe < 1 ? lsm->lsm_stripe_count - 1 :
1762 *stripe_count = lsm->lsm_stripe_count;
1764 for (j = 0, i = start_stripe; j < lsm->lsm_stripe_count;
1765 i = (i + 1) % lsm->lsm_stripe_count, j++) {
1766 if ((lov_stripe_intersects(lsm, i, fm_start, fm_end,
1767 &obd_start, &obd_end)) == 0)
1771 last_stripe = (start_stripe + j - 1) %lsm->lsm_stripe_count;
1778 * Set fe_device and copy extents from local buffer into main return buffer.
1780 * \param fiemap fiemap request header
1781 * \param lcl_fm_ext array of local fiemap extents to be copied
1782 * \param ost_index OST index to be written into the fm_device field for each
1784 * \param ext_count number of extents to be copied
1785 * \param current_extent where to start copying in main extent array
1787 void fiemap_prepare_and_copy_exts(struct ll_user_fiemap *fiemap,
1788 struct ll_fiemap_extent *lcl_fm_ext,
1789 int ost_index, unsigned int ext_count,
1795 for (ext = 0; ext < ext_count; ext++) {
1796 lcl_fm_ext[ext].fe_device = ost_index;
1797 lcl_fm_ext[ext].fe_flags |= FIEMAP_EXTENT_NET;
1800 /* Copy fm_extent's from fm_local to return buffer */
1801 to = (char *)fiemap + fiemap_count_to_size(current_extent);
1802 memcpy(to, lcl_fm_ext, ext_count * sizeof(struct ll_fiemap_extent));
1806 * Break down the FIEMAP request and send appropriate calls to individual OSTs.
1807 * This also handles the restarting of FIEMAP calls in case mapping overflows
1808 * the available number of extents in single call.
1810 static int lov_fiemap(struct lov_obd *lov, __u32 keylen, void *key,
1811 __u32 *vallen, void *val, struct lov_stripe_md *lsm)
1813 struct ll_fiemap_info_key *fm_key = key;
1814 struct ll_user_fiemap *fiemap = val;
1815 struct ll_user_fiemap *fm_local = NULL;
1816 struct ll_fiemap_extent *lcl_fm_ext;
1818 unsigned int get_num_extents = 0;
1819 int ost_index = 0, actual_start_stripe, start_stripe;
1820 obd_size fm_start, fm_end, fm_length, fm_end_offset;
1822 int current_extent = 0, rc = 0, i;
1823 int ost_eof = 0; /* EOF for object */
1824 int ost_done = 0; /* done with required mapping for this OST? */
1826 int cur_stripe = 0, cur_stripe_wrap = 0, stripe_count;
1827 unsigned int buffer_size = FIEMAP_BUFFER_SIZE;
1829 if (!lsm_has_objects(lsm)) {
1830 if (lsm && lsm_is_released(lsm) && (fm_key->fiemap.fm_start <
1831 fm_key->oa.o_size)) {
1832 /* released file, return a minimal FIEMAP if
1833 * request fits in file-size.
1835 fiemap->fm_mapped_extents = 1;
1836 fiemap->fm_extents[0].fe_logical =
1837 fm_key->fiemap.fm_start;
1838 if (fm_key->fiemap.fm_start + fm_key->fiemap.fm_length <
1840 fiemap->fm_extents[0].fe_length =
1841 fm_key->fiemap.fm_length;
1843 fiemap->fm_extents[0].fe_length =
1845 fm_key->fiemap.fm_start;
1846 fiemap->fm_extents[0].fe_flags |=
1847 (FIEMAP_EXTENT_UNKNOWN |
1848 FIEMAP_EXTENT_LAST);
1853 if (fiemap_count_to_size(fm_key->fiemap.fm_extent_count) < buffer_size)
1854 buffer_size = fiemap_count_to_size(fm_key->fiemap.fm_extent_count);
1856 OBD_ALLOC_LARGE(fm_local, buffer_size);
1857 if (fm_local == NULL)
1858 GOTO(out, rc = -ENOMEM);
1859 lcl_fm_ext = &fm_local->fm_extents[0];
1861 count_local = fiemap_size_to_count(buffer_size);
1863 memcpy(fiemap, &fm_key->fiemap, sizeof(*fiemap));
1864 fm_start = fiemap->fm_start;
1865 fm_length = fiemap->fm_length;
1866 /* Calculate start stripe, last stripe and length of mapping */
1867 actual_start_stripe = start_stripe = lov_stripe_number(lsm, fm_start);
1868 fm_end = (fm_length == ~0ULL ? fm_key->oa.o_size :
1869 fm_start + fm_length - 1);
1870 /* If fm_length != ~0ULL but fm_start+fm_length-1 exceeds file size */
1871 if (fm_end > fm_key->oa.o_size)
1872 fm_end = fm_key->oa.o_size;
1874 last_stripe = fiemap_calc_last_stripe(lsm, fm_start, fm_end,
1875 actual_start_stripe, &stripe_count);
1877 fm_end_offset = fiemap_calc_fm_end_offset(fiemap, lsm, fm_start,
1878 fm_end, &start_stripe);
1879 if (fm_end_offset == -EINVAL)
1880 GOTO(out, rc = -EINVAL);
1882 if (fiemap_count_to_size(fiemap->fm_extent_count) > *vallen)
1883 fiemap->fm_extent_count = fiemap_size_to_count(*vallen);
1884 if (fiemap->fm_extent_count == 0) {
1885 get_num_extents = 1;
1888 /* Check each stripe */
1889 for (cur_stripe = start_stripe, i = 0; i < stripe_count;
1890 i++, cur_stripe = (cur_stripe + 1) % lsm->lsm_stripe_count) {
1891 obd_size req_fm_len; /* Stores length of required mapping */
1892 obd_size len_mapped_single_call;
1893 obd_off lun_start, lun_end, obd_object_end;
1894 unsigned int ext_count;
1896 cur_stripe_wrap = cur_stripe;
1898 /* Find out range of mapping on this stripe */
1899 if ((lov_stripe_intersects(lsm, cur_stripe, fm_start, fm_end,
1900 &lun_start, &obd_object_end)) == 0)
1903 if (lov_oinfo_is_dummy(lsm->lsm_oinfo[cur_stripe]))
1904 GOTO(out, rc = -EIO);
1906 /* If this is a continuation FIEMAP call and we are on
1907 * starting stripe then lun_start needs to be set to
1909 if (fm_end_offset != 0 && cur_stripe == start_stripe)
1910 lun_start = fm_end_offset;
1912 if (fm_length != ~0ULL) {
1913 /* Handle fm_start + fm_length overflow */
1914 if (fm_start + fm_length < fm_start)
1915 fm_length = ~0ULL - fm_start;
1916 lun_end = lov_size_to_stripe(lsm, fm_start + fm_length,
1922 if (lun_start == lun_end)
1925 req_fm_len = obd_object_end - lun_start;
1926 fm_local->fm_length = 0;
1927 len_mapped_single_call = 0;
1929 /* If the output buffer is very large and the objects have many
1930 * extents we may need to loop on a single OST repeatedly */
1934 if (get_num_extents == 0) {
1935 /* Don't get too many extents. */
1936 if (current_extent + count_local >
1937 fiemap->fm_extent_count)
1938 count_local = fiemap->fm_extent_count -
1942 lun_start += len_mapped_single_call;
1943 fm_local->fm_length = req_fm_len - len_mapped_single_call;
1944 req_fm_len = fm_local->fm_length;
1945 fm_local->fm_extent_count = count_local;
1946 fm_local->fm_mapped_extents = 0;
1947 fm_local->fm_flags = fiemap->fm_flags;
1949 fm_key->oa.o_oi = lsm->lsm_oinfo[cur_stripe]->loi_oi;
1950 ost_index = lsm->lsm_oinfo[cur_stripe]->loi_ost_idx;
1952 if (ost_index < 0 || ost_index >=lov->desc.ld_tgt_count)
1953 GOTO(out, rc = -EINVAL);
1955 /* If OST is inactive, return extent with UNKNOWN flag */
1956 if (!lov->lov_tgts[ost_index]->ltd_active) {
1957 fm_local->fm_flags |= FIEMAP_EXTENT_LAST;
1958 fm_local->fm_mapped_extents = 1;
1960 lcl_fm_ext[0].fe_logical = lun_start;
1961 lcl_fm_ext[0].fe_length = obd_object_end -
1963 lcl_fm_ext[0].fe_flags |= FIEMAP_EXTENT_UNKNOWN;
1968 fm_local->fm_start = lun_start;
1969 fm_local->fm_flags &= ~FIEMAP_FLAG_DEVICE_ORDER;
1970 memcpy(&fm_key->fiemap, fm_local, sizeof(*fm_local));
1971 *vallen=fiemap_count_to_size(fm_local->fm_extent_count);
1972 rc = obd_get_info(NULL,
1973 lov->lov_tgts[ost_index]->ltd_exp,
1974 keylen, key, vallen, fm_local, lsm);
1979 ext_count = fm_local->fm_mapped_extents;
1980 if (ext_count == 0) {
1982 /* If last stripe has hole at the end,
1983 * then we need to return */
1984 if (cur_stripe_wrap == last_stripe) {
1985 fiemap->fm_mapped_extents = 0;
1991 /* If we just need num of extents then go to next device */
1992 if (get_num_extents) {
1993 current_extent += ext_count;
1997 len_mapped_single_call = lcl_fm_ext[ext_count-1].fe_logical -
1998 lun_start + lcl_fm_ext[ext_count - 1].fe_length;
2000 /* Have we finished mapping on this device? */
2001 if (req_fm_len <= len_mapped_single_call)
2004 /* Clear the EXTENT_LAST flag which can be present on
2006 if (lcl_fm_ext[ext_count-1].fe_flags & FIEMAP_EXTENT_LAST)
2007 lcl_fm_ext[ext_count - 1].fe_flags &=
2008 ~FIEMAP_EXTENT_LAST;
2010 curr_loc = lov_stripe_size(lsm,
2011 lcl_fm_ext[ext_count - 1].fe_logical+
2012 lcl_fm_ext[ext_count - 1].fe_length,
2014 if (curr_loc >= fm_key->oa.o_size)
2017 fiemap_prepare_and_copy_exts(fiemap, lcl_fm_ext,
2018 ost_index, ext_count,
2021 current_extent += ext_count;
2023 /* Ran out of available extents? */
2024 if (current_extent >= fiemap->fm_extent_count)
2026 } while (ost_done == 0 && ost_eof == 0);
2028 if (cur_stripe_wrap == last_stripe)
2033 /* Indicate that we are returning device offsets unless file just has
2035 if (lsm->lsm_stripe_count > 1)
2036 fiemap->fm_flags |= FIEMAP_FLAG_DEVICE_ORDER;
2038 if (get_num_extents)
2039 goto skip_last_device_calc;
2041 /* Check if we have reached the last stripe and whether mapping for that
2042 * stripe is done. */
2043 if (cur_stripe_wrap == last_stripe) {
2044 if (ost_done || ost_eof)
2045 fiemap->fm_extents[current_extent - 1].fe_flags |=
2049 skip_last_device_calc:
2050 fiemap->fm_mapped_extents = current_extent;
2054 OBD_FREE_LARGE(fm_local, buffer_size);
2058 static int lov_get_info(const struct lu_env *env, struct obd_export *exp,
2059 __u32 keylen, void *key, __u32 *vallen, void *val,
2060 struct lov_stripe_md *lsm)
2062 struct obd_device *obddev = class_exp2obd(exp);
2063 struct lov_obd *lov = &obddev->u.lov;
2067 if (!vallen || !val)
2072 if (KEY_IS(KEY_LOCK_TO_STRIPE)) {
2075 struct ldlm_lock *lock;
2077 struct ldlm_res_id *res_id = &data->lock->l_resource->lr_name;
2078 struct lov_oinfo *loi;
2079 __u32 *stripe = val;
2081 if (*vallen < sizeof(*stripe))
2082 GOTO(out, rc = -EFAULT);
2083 *vallen = sizeof(*stripe);
2085 /* XXX This is another one of those bits that will need to
2086 * change if we ever actually support nested LOVs. It uses
2087 * the lock's export to find out which stripe it is. */
2088 /* XXX - it's assumed all the locks for deleted OSTs have
2089 * been cancelled. Also, the export for deleted OSTs will
2090 * be NULL and won't match the lock's export. */
2091 for (i = 0; i < lsm->lsm_stripe_count; i++) {
2092 loi = lsm->lsm_oinfo[i];
2093 if (lov_oinfo_is_dummy(loi))
2096 if (!lov->lov_tgts[loi->loi_ost_idx])
2098 if (lov->lov_tgts[loi->loi_ost_idx]->ltd_exp ==
2099 data->lock->l_conn_export &&
2100 ostid_res_name_eq(&loi->loi_oi, res_id)) {
2105 LDLM_ERROR(data->lock, "lock on inode without such object");
2106 dump_lsm(D_ERROR, lsm);
2107 GOTO(out, rc = -ENXIO);
2108 } else if (KEY_IS(KEY_LAST_ID)) {
2109 struct obd_id_info *info = val;
2110 __u32 size = sizeof(obd_id);
2111 struct lov_tgt_desc *tgt;
2113 LASSERT(*vallen == sizeof(struct obd_id_info));
2114 tgt = lov->lov_tgts[info->idx];
2116 if (!tgt || !tgt->ltd_active)
2117 GOTO(out, rc = -ESRCH);
2119 rc = obd_get_info(env, tgt->ltd_exp, keylen, key,
2120 &size, info->data, NULL);
2122 } else if (KEY_IS(KEY_LOVDESC)) {
2123 struct lov_desc *desc_ret = val;
2124 *desc_ret = lov->desc;
2127 } else if (KEY_IS(KEY_FIEMAP)) {
2128 rc = lov_fiemap(lov, keylen, key, vallen, val, lsm);
2130 } else if (KEY_IS(KEY_CONNECT_FLAG)) {
2131 struct lov_tgt_desc *tgt;
2132 __u64 ost_idx = *((__u64*)val);
2134 LASSERT(*vallen == sizeof(__u64));
2135 LASSERT(ost_idx < lov->desc.ld_tgt_count);
2136 tgt = lov->lov_tgts[ost_idx];
2138 if (!tgt || !tgt->ltd_exp)
2139 GOTO(out, rc = -ESRCH);
2141 *((__u64 *)val) = exp_connect_flags(tgt->ltd_exp);
2143 } else if (KEY_IS(KEY_TGT_COUNT)) {
2144 *((int *)val) = lov->desc.ld_tgt_count;
2155 static int lov_set_info_async(const struct lu_env *env, struct obd_export *exp,
2156 obd_count keylen, void *key, obd_count vallen,
2157 void *val, struct ptlrpc_request_set *set)
2159 struct obd_device *obddev = class_exp2obd(exp);
2160 struct lov_obd *lov = &obddev->u.lov;
2163 struct lov_tgt_desc *tgt;
2164 unsigned incr, check_uuid,
2165 do_inactive, no_set;
2166 unsigned next_id = 0, mds_con = 0, capa = 0;
2169 incr = check_uuid = do_inactive = no_set = 0;
2172 set = ptlrpc_prep_set();
2178 count = lov->desc.ld_tgt_count;
2180 if (KEY_IS(KEY_NEXT_ID)) {
2181 count = vallen / sizeof(struct obd_id_info);
2182 vallen = sizeof(obd_id);
2183 incr = sizeof(struct obd_id_info);
2186 } else if (KEY_IS(KEY_CHECKSUM)) {
2188 } else if (KEY_IS(KEY_EVICT_BY_NID)) {
2189 /* use defaults: do_inactive = incr = 0; */
2190 } else if (KEY_IS(KEY_MDS_CONN)) {
2192 } else if (KEY_IS(KEY_CAPA_KEY)) {
2194 } else if (KEY_IS(KEY_CACHE_SET)) {
2195 LASSERT(lov->lov_cache == NULL);
2196 lov->lov_cache = val;
2200 for (i = 0; i < count; i++, val = (char *)val + incr) {
2202 tgt = lov->lov_tgts[((struct obd_id_info*)val)->idx];
2204 tgt = lov->lov_tgts[i];
2206 /* OST was disconnected */
2207 if (!tgt || !tgt->ltd_exp)
2210 /* OST is inactive and we don't want inactive OSCs */
2211 if (!tgt->ltd_active && !do_inactive)
2215 struct mds_group_info *mgi;
2217 LASSERT(vallen == sizeof(*mgi));
2218 mgi = (struct mds_group_info *)val;
2220 /* Only want a specific OSC */
2221 if (mgi->uuid && !obd_uuid_equals(mgi->uuid,
2225 err = obd_set_info_async(env, tgt->ltd_exp,
2226 keylen, key, sizeof(int),
2228 } else if (next_id) {
2229 err = obd_set_info_async(env, tgt->ltd_exp,
2230 keylen, key, vallen,
2231 ((struct obd_id_info*)val)->data, set);
2233 struct mds_capa_info *info = (struct mds_capa_info*)val;
2235 LASSERT(vallen == sizeof(*info));
2237 /* Only want a specific OSC */
2239 !obd_uuid_equals(info->uuid, &tgt->ltd_uuid))
2242 err = obd_set_info_async(env, tgt->ltd_exp, keylen,
2243 key, sizeof(*info->capa),
2246 /* Only want a specific OSC */
2248 !obd_uuid_equals(val, &tgt->ltd_uuid))
2251 err = obd_set_info_async(env, tgt->ltd_exp,
2252 keylen, key, vallen, val, set);
2261 err = ptlrpc_set_wait(set);
2264 ptlrpc_set_destroy(set);
2269 void lov_stripe_lock(struct lov_stripe_md *md)
2271 LASSERT(md->lsm_lock_owner != current_pid());
2272 spin_lock(&md->lsm_lock);
2273 LASSERT(md->lsm_lock_owner == 0);
2274 md->lsm_lock_owner = current_pid();
2277 void lov_stripe_unlock(struct lov_stripe_md *md)
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("bad quota opc %x for lov obd", oqctl->qc_cmd);
2306 for (i = 0; i < lov->desc.ld_tgt_count; i++) {
2309 tgt = lov->lov_tgts[i];
2314 if (!tgt->ltd_active || tgt->ltd_reap) {
2315 if (oqctl->qc_cmd == Q_GETOQUOTA &&
2316 lov->lov_tgts[i]->ltd_activate) {
2318 CERROR("ost %d is inactive\n", i);
2320 CDEBUG(D_HA, "ost %d is inactive\n", i);
2325 err = obd_quotactl(tgt->ltd_exp, oqctl);
2327 if (tgt->ltd_active && !rc)
2332 if (oqctl->qc_cmd == Q_GETOQUOTA) {
2333 curspace += oqctl->qc_dqblk.dqb_curspace;
2334 bhardlimit += oqctl->qc_dqblk.dqb_bhardlimit;
2339 if (oqctl->qc_cmd == Q_GETOQUOTA) {
2340 oqctl->qc_dqblk.dqb_curspace = curspace;
2341 oqctl->qc_dqblk.dqb_bhardlimit = bhardlimit;
2346 static int lov_quotacheck(struct obd_device *obd, struct obd_export *exp,
2347 struct obd_quotactl *oqctl)
2349 struct lov_obd *lov = &obd->u.lov;
2355 for (i = 0; i < lov->desc.ld_tgt_count; i++) {
2356 if (!lov->lov_tgts[i])
2359 /* Skip quota check on the administratively disabled OSTs. */
2360 if (!lov->lov_tgts[i]->ltd_activate) {
2361 CWARN("lov idx %d was administratively disabled, "
2362 "skip quotacheck on it.\n", i);
2366 if (!lov->lov_tgts[i]->ltd_active) {
2367 CERROR("lov idx %d inactive\n", i);
2373 for (i = 0; i < lov->desc.ld_tgt_count; i++) {
2376 if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_activate)
2379 err = obd_quotacheck(lov->lov_tgts[i]->ltd_exp, oqctl);
2390 static struct obd_ops lov_obd_ops = {
2391 .o_owner = THIS_MODULE,
2392 .o_setup = lov_setup,
2393 .o_precleanup = lov_precleanup,
2394 .o_cleanup = lov_cleanup,
2395 .o_connect = lov_connect,
2396 .o_disconnect = lov_disconnect,
2397 .o_statfs = lov_statfs,
2398 .o_statfs_async = lov_statfs_async,
2399 .o_packmd = lov_packmd,
2400 .o_unpackmd = lov_unpackmd,
2401 .o_create = lov_create,
2402 .o_destroy = lov_destroy,
2403 .o_getattr_async = lov_getattr_async,
2404 .o_setattr_async = lov_setattr_async,
2405 .o_change_cbdata = lov_change_cbdata,
2406 .o_find_cbdata = lov_find_cbdata,
2407 .o_iocontrol = lov_iocontrol,
2408 .o_get_info = lov_get_info,
2409 .o_set_info_async = lov_set_info_async,
2410 .o_notify = lov_notify,
2411 .o_pool_new = lov_pool_new,
2412 .o_pool_rem = lov_pool_remove,
2413 .o_pool_add = lov_pool_add,
2414 .o_pool_del = lov_pool_del,
2415 .o_getref = lov_getref,
2416 .o_putref = lov_putref,
2417 .o_quotactl = lov_quotactl,
2418 .o_quotacheck = lov_quotacheck,
2421 struct kmem_cache *lov_oinfo_slab;
2423 extern struct lu_kmem_descr lov_caches[];
2425 int __init lov_init(void)
2427 bool enable_proc = true;
2428 struct obd_type *type;
2432 /* print an address of _any_ initialized kernel symbol from this
2433 * module, to allow debugging with gdb that doesn't support data
2434 * symbols from modules.*/
2435 CDEBUG(D_INFO, "Lustre LOV module (%p).\n", &lov_caches);
2437 rc = lu_kmem_init(lov_caches);
2441 lov_oinfo_slab = kmem_cache_create("lov_oinfo",
2442 sizeof(struct lov_oinfo), 0,
2443 SLAB_HWCACHE_ALIGN, NULL);
2444 if (lov_oinfo_slab == NULL) {
2445 lu_kmem_fini(lov_caches);
2449 type = class_search_type(LUSTRE_LOD_NAME);
2450 if (type != NULL && type->typ_procsym != NULL)
2451 enable_proc = false;
2453 rc = class_register_type(&lov_obd_ops, NULL, enable_proc, NULL,
2454 #ifndef HAVE_ONLY_PROCFS_SEQ
2457 LUSTRE_LOV_NAME, &lov_device_type);
2460 kmem_cache_destroy(lov_oinfo_slab);
2461 lu_kmem_fini(lov_caches);
2468 static void /*__exit*/ lov_exit(void)
2470 class_unregister_type(LUSTRE_LOV_NAME);
2471 kmem_cache_destroy(lov_oinfo_slab);
2472 lu_kmem_fini(lov_caches);
2475 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
2476 MODULE_DESCRIPTION("Lustre Logical Object Volume OBD driver");
2477 MODULE_LICENSE("GPL");
2479 cfs_module(lov, LUSTRE_VERSION_STRING, lov_init, lov_exit);