1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (c) 2003 Cluster File Systems, Inc.
6 * This file is part of the Lustre file system, http://www.lustre.org
7 * Lustre is a trademark of Cluster File Systems, Inc.
9 * You may have signed or agreed to another license before downloading
10 * this software. If so, you are bound by the terms and conditions
11 * of that agreement, and the following does not apply to you. See the
12 * LICENSE file included with this distribution for more information.
14 * If you did not agree to a different license, then this copy of Lustre
15 * is open source software; you can redistribute it and/or modify it
16 * under the terms of version 2 of the GNU General Public License as
17 * published by the Free Software Foundation.
19 * In either case, Lustre is distributed in the hope that it will be
20 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
21 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * license text for more details.
26 # define EXPORT_SYMTAB
28 #define DEBUG_SUBSYSTEM S_LDLM
31 # include <libcfs/libcfs.h>
33 # include <liblustre.h>
36 #include <lustre_mds.h>
37 #include <lustre_dlm.h>
38 #include <lustre_net.h>
39 #include <lustre_sec.h>
40 #include "ldlm_internal.h"
43 /* @priority: if non-zero, move the selected to the list head
44 * @create: if zero, only search in existed connections
46 static int import_set_conn(struct obd_import *imp, struct obd_uuid *uuid,
47 int priority, int create)
49 struct ptlrpc_connection *ptlrpc_conn;
50 struct obd_import_conn *imp_conn = NULL, *item;
54 if (!create && !priority) {
55 CDEBUG(D_HA, "Nothing to do\n");
59 ptlrpc_conn = ptlrpc_uuid_to_connection(uuid);
61 CDEBUG(D_HA, "can't find connection %s\n", uuid->uuid);
66 OBD_ALLOC(imp_conn, sizeof(*imp_conn));
68 GOTO(out_put, rc = -ENOMEM);
72 spin_lock(&imp->imp_lock);
73 list_for_each_entry(item, &imp->imp_conn_list, oic_item) {
74 if (obd_uuid_equals(uuid, &item->oic_uuid)) {
76 list_del(&item->oic_item);
77 list_add(&item->oic_item, &imp->imp_conn_list);
78 item->oic_last_attempt = 0;
80 CDEBUG(D_HA, "imp %p@%s: found existing conn %s%s\n",
81 imp, imp->imp_obd->obd_name, uuid->uuid,
82 (priority ? ", moved to head" : ""));
83 spin_unlock(&imp->imp_lock);
84 GOTO(out_free, rc = 0);
89 imp_conn->oic_conn = ptlrpc_conn;
90 imp_conn->oic_uuid = *uuid;
91 item->oic_last_attempt = 0;
93 list_add(&imp_conn->oic_item, &imp->imp_conn_list);
95 list_add_tail(&imp_conn->oic_item, &imp->imp_conn_list);
96 CDEBUG(D_HA, "imp %p@%s: add connection %s at %s\n",
97 imp, imp->imp_obd->obd_name, uuid->uuid,
98 (priority ? "head" : "tail"));
100 spin_unlock(&imp->imp_lock);
101 GOTO(out_free, rc = -ENOENT);
104 spin_unlock(&imp->imp_lock);
108 OBD_FREE(imp_conn, sizeof(*imp_conn));
110 ptlrpc_put_connection(ptlrpc_conn);
114 int import_set_conn_priority(struct obd_import *imp, struct obd_uuid *uuid)
116 return import_set_conn(imp, uuid, 1, 0);
119 int client_import_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
122 return import_set_conn(imp, uuid, priority, 1);
125 int client_import_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
127 struct obd_import_conn *imp_conn;
128 struct obd_export *dlmexp;
132 spin_lock(&imp->imp_lock);
133 if (list_empty(&imp->imp_conn_list)) {
134 LASSERT(!imp->imp_connection);
138 list_for_each_entry(imp_conn, &imp->imp_conn_list, oic_item) {
139 if (!obd_uuid_equals(uuid, &imp_conn->oic_uuid))
141 LASSERT(imp_conn->oic_conn);
143 /* is current conn? */
144 if (imp_conn == imp->imp_conn_current) {
145 LASSERT(imp_conn->oic_conn == imp->imp_connection);
147 if (imp->imp_state != LUSTRE_IMP_CLOSED &&
148 imp->imp_state != LUSTRE_IMP_DISCON) {
149 CERROR("can't remove current connection\n");
150 GOTO(out, rc = -EBUSY);
153 ptlrpc_put_connection(imp->imp_connection);
154 imp->imp_connection = NULL;
156 dlmexp = class_conn2export(&imp->imp_dlm_handle);
157 if (dlmexp && dlmexp->exp_connection) {
158 LASSERT(dlmexp->exp_connection ==
160 ptlrpc_put_connection(dlmexp->exp_connection);
161 dlmexp->exp_connection = NULL;
165 list_del(&imp_conn->oic_item);
166 ptlrpc_put_connection(imp_conn->oic_conn);
167 OBD_FREE(imp_conn, sizeof(*imp_conn));
168 CDEBUG(D_HA, "imp %p@%s: remove connection %s\n",
169 imp, imp->imp_obd->obd_name, uuid->uuid);
174 spin_unlock(&imp->imp_lock);
176 CERROR("connection %s not found\n", uuid->uuid);
180 static void destroy_import(struct obd_import *imp)
182 /* drop security policy instance after all rpc finished/aborted
183 * to let all busy contexts be released. */
184 class_import_get(imp);
185 class_destroy_import(imp);
186 sptlrpc_import_sec_put(imp);
187 class_import_put(imp);
190 /* configure an RPC client OBD device
195 * 3 - inactive-on-startup
197 int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
199 struct client_obd *cli = &obddev->u.cli;
200 struct obd_import *imp;
201 struct obd_uuid server_uuid;
202 int rq_portal, rp_portal, connect_op;
203 char *name = obddev->obd_type->typ_name;
207 /* In a more perfect world, we would hang a ptlrpc_client off of
208 * obd_type and just use the values from there. */
209 if (!strcmp(name, LUSTRE_OSC_NAME)) {
210 rq_portal = OST_REQUEST_PORTAL;
211 rp_portal = OSC_REPLY_PORTAL;
212 connect_op = OST_CONNECT;
213 } else if (!strcmp(name, LUSTRE_MDC_NAME)) {
214 rq_portal = MDS_REQUEST_PORTAL;
215 rp_portal = MDC_REPLY_PORTAL;
216 connect_op = MDS_CONNECT;
217 } else if (!strcmp(name, LUSTRE_MGC_NAME)) {
218 rq_portal = MGS_REQUEST_PORTAL;
219 rp_portal = MGC_REPLY_PORTAL;
220 connect_op = MGS_CONNECT;
222 CERROR("unknown client OBD type \"%s\", can't setup\n",
227 if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1) {
228 CERROR("requires a TARGET UUID\n");
232 if (LUSTRE_CFG_BUFLEN(lcfg, 1) > 37) {
233 CERROR("client UUID must be less than 38 characters\n");
237 if (LUSTRE_CFG_BUFLEN(lcfg, 2) < 1) {
238 CERROR("setup requires a SERVER UUID\n");
242 if (LUSTRE_CFG_BUFLEN(lcfg, 2) > 37) {
243 CERROR("target UUID must be less than 38 characters\n");
247 sema_init(&cli->cl_sem, 1);
248 sema_init(&cli->cl_mgc_sem, 1);
249 sptlrpc_rule_set_init(&cli->cl_sptlrpc_rset);
250 cli->cl_sec_part = LUSTRE_SP_ANY;
251 cli->cl_conn_count = 0;
252 memcpy(server_uuid.uuid, lustre_cfg_buf(lcfg, 2),
253 min_t(unsigned int, LUSTRE_CFG_BUFLEN(lcfg, 2),
254 sizeof(server_uuid)));
257 cli->cl_avail_grant = 0;
258 /* FIXME: should limit this for the sum of all cl_dirty_max */
259 cli->cl_dirty_max = OSC_MAX_DIRTY_DEFAULT * 1024 * 1024;
260 if (cli->cl_dirty_max >> CFS_PAGE_SHIFT > num_physpages / 8)
261 cli->cl_dirty_max = num_physpages << (CFS_PAGE_SHIFT - 3);
262 CFS_INIT_LIST_HEAD(&cli->cl_cache_waiters);
263 CFS_INIT_LIST_HEAD(&cli->cl_loi_ready_list);
264 CFS_INIT_LIST_HEAD(&cli->cl_loi_write_list);
265 CFS_INIT_LIST_HEAD(&cli->cl_loi_read_list);
266 client_obd_list_lock_init(&cli->cl_loi_list_lock);
267 cli->cl_r_in_flight = 0;
268 cli->cl_w_in_flight = 0;
270 spin_lock_init(&cli->cl_read_rpc_hist.oh_lock);
271 spin_lock_init(&cli->cl_write_rpc_hist.oh_lock);
272 spin_lock_init(&cli->cl_read_page_hist.oh_lock);
273 spin_lock_init(&cli->cl_write_page_hist.oh_lock);
274 spin_lock_init(&cli->cl_read_offset_hist.oh_lock);
275 spin_lock_init(&cli->cl_write_offset_hist.oh_lock);
276 cfs_waitq_init(&cli->cl_destroy_waitq);
277 atomic_set(&cli->cl_destroy_in_flight, 0);
278 #ifdef ENABLE_CHECKSUM
279 cli->cl_checksum = 1;
281 atomic_set(&cli->cl_resends, OSC_DEFAULT_RESENDS);
283 /* This value may be changed at connect time in
284 ptlrpc_connect_interpret. */
285 cli->cl_max_pages_per_rpc = min((int)PTLRPC_MAX_BRW_PAGES,
286 (int)(1024 * 1024 >> CFS_PAGE_SHIFT));
288 if (!strcmp(name, LUSTRE_MDC_NAME)) {
289 cli->cl_max_rpcs_in_flight = MDC_MAX_RIF_DEFAULT;
290 } else if (num_physpages >> (20 - CFS_PAGE_SHIFT) <= 128 /* MB */) {
291 cli->cl_max_rpcs_in_flight = 2;
292 } else if (num_physpages >> (20 - CFS_PAGE_SHIFT) <= 256 /* MB */) {
293 cli->cl_max_rpcs_in_flight = 3;
294 } else if (num_physpages >> (20 - CFS_PAGE_SHIFT) <= 512 /* MB */) {
295 cli->cl_max_rpcs_in_flight = 4;
297 cli->cl_max_rpcs_in_flight = OSC_MAX_RIF_DEFAULT;
302 CERROR("ldlm_get_ref failed: %d\n", rc);
306 ptlrpc_init_client(rq_portal, rp_portal, name,
307 &obddev->obd_ldlm_client);
309 imp = class_new_import(obddev);
311 GOTO(err_ldlm, rc = -ENOENT);
312 imp->imp_client = &obddev->obd_ldlm_client;
313 imp->imp_connect_op = connect_op;
314 imp->imp_initial_recov = 1;
315 imp->imp_initial_recov_bk = 0;
316 CFS_INIT_LIST_HEAD(&imp->imp_pinger_chain);
317 memcpy(cli->cl_target_uuid.uuid, lustre_cfg_buf(lcfg, 1),
318 LUSTRE_CFG_BUFLEN(lcfg, 1));
319 class_import_put(imp);
321 rc = client_import_add_conn(imp, &server_uuid, 1);
323 CERROR("can't add initial connection\n");
324 GOTO(err_import, rc);
327 cli->cl_import = imp;
328 /* cli->cl_max_mds_{easize,cookiesize} updated by mdc_init_ea_size() */
329 cli->cl_max_mds_easize = sizeof(struct lov_mds_md);
330 cli->cl_max_mds_cookiesize = sizeof(struct llog_cookie);
332 if (LUSTRE_CFG_BUFLEN(lcfg, 3) > 0) {
333 if (!strcmp(lustre_cfg_string(lcfg, 3), "inactive")) {
334 CDEBUG(D_HA, "marking %s %s->%s as inactive\n",
335 name, obddev->obd_name,
336 cli->cl_target_uuid.uuid);
337 spin_lock(&imp->imp_lock);
338 imp->imp_invalid = 1;
339 spin_unlock(&imp->imp_lock);
343 cli->cl_qchk_stat = CL_NOT_QUOTACHECKED;
348 class_destroy_import(imp);
356 int client_obd_cleanup(struct obd_device *obddev)
359 sptlrpc_rule_set_free(&obddev->u.cli.cl_sptlrpc_rset);
360 ldlm_put_ref(obddev->obd_force);
364 /* ->o_connect() method for client side (OSC and MDC and MGC) */
365 int client_connect_import(const struct lu_env *env,
366 struct lustre_handle *dlm_handle,
367 struct obd_device *obd, struct obd_uuid *cluuid,
368 struct obd_connect_data *data)
370 struct client_obd *cli = &obd->u.cli;
371 struct obd_import *imp = cli->cl_import;
372 struct obd_export *exp;
373 struct obd_connect_data *ocd;
374 struct ldlm_namespace *to_be_freed = NULL;
378 mutex_down(&cli->cl_sem);
379 rc = class_connect(dlm_handle, obd, cluuid);
383 cli->cl_conn_count++;
384 if (cli->cl_conn_count > 1)
386 exp = class_conn2export(dlm_handle);
388 if (obd->obd_namespace != NULL)
389 CERROR("already have namespace!\n");
390 obd->obd_namespace = ldlm_namespace_new(obd->obd_name,
391 LDLM_NAMESPACE_CLIENT,
392 LDLM_NAMESPACE_GREEDY);
393 if (obd->obd_namespace == NULL)
394 GOTO(out_disco, rc = -ENOMEM);
396 imp->imp_dlm_handle = *dlm_handle;
397 rc = ptlrpc_init_import(imp);
401 ocd = &imp->imp_connect_data;
404 imp->imp_connect_flags_orig = data->ocd_connect_flags;
407 rc = ptlrpc_connect_import(imp, NULL);
409 LASSERT (imp->imp_state == LUSTRE_IMP_DISCON);
412 LASSERT(exp->exp_connection);
415 LASSERT((ocd->ocd_connect_flags & data->ocd_connect_flags) ==
416 ocd->ocd_connect_flags);
417 data->ocd_connect_flags = ocd->ocd_connect_flags;
420 ptlrpc_pinger_add_import(imp);
426 ldlm_namespace_free_prior(obd->obd_namespace);
427 to_be_freed = obd->obd_namespace;
428 obd->obd_namespace = NULL;
430 cli->cl_conn_count--;
431 class_disconnect(exp);
433 class_export_put(exp);
436 mutex_up(&cli->cl_sem);
438 ldlm_namespace_free_post(to_be_freed, 1);
443 int client_disconnect_export(struct obd_export *exp)
445 struct obd_device *obd = class_exp2obd(exp);
446 struct client_obd *cli;
447 struct obd_import *imp;
449 struct ldlm_namespace *to_be_freed = NULL;
453 CERROR("invalid export for disconnect: exp %p cookie "LPX64"\n",
454 exp, exp ? exp->exp_handle.h_cookie : -1);
459 imp = cli->cl_import;
461 mutex_down(&cli->cl_sem);
462 if (!cli->cl_conn_count) {
463 CERROR("disconnecting disconnected device (%s)\n",
465 GOTO(out_sem, rc = -EINVAL);
468 cli->cl_conn_count--;
469 if (cli->cl_conn_count)
470 GOTO(out_no_disconnect, rc = 0);
472 /* Mark import deactivated now, so we don't try to reconnect if any
473 * of the cleanup RPCs fails (e.g. ldlm cancel, etc). We don't
474 * fully deactivate the import, or that would drop all requests. */
475 spin_lock(&imp->imp_lock);
476 imp->imp_deactive = 1;
477 spin_unlock(&imp->imp_lock);
479 /* Some non-replayable imports (MDS's OSCs) are pinged, so just
480 * delete it regardless. (It's safe to delete an import that was
482 (void)ptlrpc_pinger_del_import(imp);
484 if (obd->obd_namespace != NULL) {
485 /* obd_force == local only */
486 ldlm_cli_cancel_unused(obd->obd_namespace, NULL,
487 obd->obd_force ? LDLM_FL_LOCAL_ONLY:0,
489 ldlm_namespace_free_prior(obd->obd_namespace);
490 to_be_freed = obd->obd_namespace;
493 rc = ptlrpc_disconnect_import(imp, 0);
495 ptlrpc_invalidate_import(imp);
496 /* set obd_namespace to NULL only after invalidate, because we can have
497 * some connect requests in flight, and his need store a connect flags
498 * in obd_namespace. bug 14260 */
499 obd->obd_namespace = NULL;
501 ptlrpc_free_rq_pool(imp->imp_rq_pool);
503 cli->cl_import = NULL;
507 err = class_disconnect(exp);
511 mutex_up(&cli->cl_sem);
513 ldlm_namespace_free_post(to_be_freed, obd->obd_force);
518 /* --------------------------------------------------------------------------
519 * from old lib/target.c
520 * -------------------------------------------------------------------------- */
522 int target_handle_reconnect(struct lustre_handle *conn, struct obd_export *exp,
523 struct obd_uuid *cluuid, int initial_conn)
526 if (exp->exp_connection && exp->exp_imp_reverse && !initial_conn) {
527 struct lustre_handle *hdl;
528 hdl = &exp->exp_imp_reverse->imp_remote_handle;
529 /* Might be a re-connect after a partition. */
530 if (!memcmp(&conn->cookie, &hdl->cookie, sizeof conn->cookie)) {
531 CWARN("%s: %s reconnecting\n", exp->exp_obd->obd_name,
533 conn->cookie = exp->exp_handle.h_cookie;
534 /* target_handle_connect() treats EALREADY and
535 * -EALREADY differently. EALREADY means we are
536 * doing a valid reconnect from the same client. */
539 CERROR("%s reconnecting from %s, "
540 "handle mismatch (ours "LPX64", theirs "
541 LPX64")\n", cluuid->uuid,
542 exp->exp_connection->c_remote_uuid.uuid,
543 hdl->cookie, conn->cookie);
544 memset(conn, 0, sizeof *conn);
545 /* target_handle_connect() treats EALREADY and
546 * -EALREADY differently. -EALREADY is an error
547 * (same UUID, different handle). */
552 conn->cookie = exp->exp_handle.h_cookie;
553 CDEBUG(D_HA, "connect export for UUID '%s' at %p, cookie "LPX64"\n",
554 cluuid->uuid, exp, conn->cookie);
558 void target_client_add_cb(struct obd_device *obd, __u64 transno, void *cb_data,
561 struct obd_export *exp = cb_data;
563 CDEBUG(D_RPCTRACE, "%s: committing for initial connect of %s\n",
564 obd->obd_name, exp->exp_client_uuid.uuid);
566 spin_lock(&exp->exp_lock);
567 exp->exp_need_sync = 0;
568 spin_unlock(&exp->exp_lock);
570 EXPORT_SYMBOL(target_client_add_cb);
572 int target_handle_connect(struct ptlrpc_request *req)
574 struct obd_device *target, *targref = NULL;
575 struct obd_export *export = NULL;
576 struct obd_import *revimp;
577 struct lustre_handle conn;
578 struct lustre_handle *tmp;
579 struct obd_uuid tgtuuid;
580 struct obd_uuid cluuid;
581 struct obd_uuid remote_uuid;
584 int initial_conn = 0;
585 struct obd_connect_data *data, *tmpdata;
588 OBD_RACE(OBD_FAIL_TGT_CONN_RACE);
590 str = req_capsule_client_get(&req->rq_pill, &RMF_TGTUUID);
592 DEBUG_REQ(D_ERROR, req, "bad target UUID for connect");
593 GOTO(out, rc = -EINVAL);
596 obd_str2uuid(&tgtuuid, str);
597 target = class_uuid2obd(&tgtuuid);
599 target = class_name2obd(str);
601 if (!target || target->obd_stopping || !target->obd_set_up) {
602 LCONSOLE_ERROR_MSG(0x137, "UUID '%s' is not available "
603 " for connect (%s)\n", str,
604 !target ? "no target" :
605 (target->obd_stopping ? "stopping" :
607 GOTO(out, rc = -ENODEV);
610 if (target->obd_no_conn) {
611 LCONSOLE_WARN("%s: temporarily refusing client connection "
612 "from %s\n", target->obd_name,
613 libcfs_nid2str(req->rq_peer.nid));
614 GOTO(out, rc = -EAGAIN);
617 /* Make sure the target isn't cleaned up while we're here. Yes,
618 there's still a race between the above check and our incref here.
619 Really, class_uuid2obd should take the ref. */
620 targref = class_incref(target);
623 str = req_capsule_client_get(&req->rq_pill, &RMF_CLUUID);
625 DEBUG_REQ(D_ERROR, req, "bad client UUID for connect");
626 GOTO(out, rc = -EINVAL);
629 obd_str2uuid(&cluuid, str);
631 /* XXX extract a nettype and format accordingly */
632 switch (sizeof(lnet_nid_t)) {
633 /* NB the casts only avoid compiler warnings */
635 snprintf(remote_uuid.uuid, sizeof remote_uuid,
636 "NET_"LPX64"_UUID", (__u64)req->rq_peer.nid);
639 snprintf(remote_uuid.uuid, sizeof remote_uuid,
640 "NET_%x_UUID", (__u32)req->rq_peer.nid);
646 tmp = req_capsule_client_get(&req->rq_pill, &RMF_CONN);
648 GOTO(out, rc = -EPROTO);
652 data = req_capsule_client_get(&req->rq_pill, &RMF_CONNECT_DATA);
654 GOTO(out, rc = -EPROTO);
656 rc = req_capsule_server_pack(&req->rq_pill);
660 if (lustre_msg_get_op_flags(req->rq_reqmsg) & MSG_CONNECT_LIBCLIENT) {
662 DEBUG_REQ(D_WARNING, req, "Refusing old (unversioned) "
663 "libclient connection attempt");
664 GOTO(out, rc = -EPROTO);
665 } else if (data->ocd_version < LUSTRE_VERSION_CODE -
666 LUSTRE_VERSION_ALLOWED_OFFSET ||
667 data->ocd_version > LUSTRE_VERSION_CODE +
668 LUSTRE_VERSION_ALLOWED_OFFSET) {
669 DEBUG_REQ(D_WARNING, req, "Refusing %s (%d.%d.%d.%d) "
670 "libclient connection attempt",
671 data->ocd_version < LUSTRE_VERSION_CODE ?
673 OBD_OCD_VERSION_MAJOR(data->ocd_version),
674 OBD_OCD_VERSION_MINOR(data->ocd_version),
675 OBD_OCD_VERSION_PATCH(data->ocd_version),
676 OBD_OCD_VERSION_FIX(data->ocd_version));
677 data = req_capsule_server_sized_get(&req->rq_pill,
679 offsetof(typeof(*data), ocd_version) +
680 sizeof(data->ocd_version));
682 data->ocd_connect_flags = OBD_CONNECT_VERSION;
683 data->ocd_version = LUSTRE_VERSION_CODE;
685 GOTO(out, rc = -EPROTO);
689 if (lustre_msg_get_op_flags(req->rq_reqmsg) & MSG_CONNECT_INITIAL)
692 /* lctl gets a backstage, all-access pass. */
693 if (obd_uuid_equals(&cluuid, &target->obd_uuid))
694 goto dont_check_exports;
696 spin_lock(&target->obd_dev_lock);
697 export = lustre_hash_get_object_by_key(target->obd_uuid_hash_body, &cluuid);
699 if (export != NULL && export->exp_connecting) { /* bug 9635, et. al. */
700 CWARN("%s: exp %p already connecting\n",
701 export->exp_obd->obd_name, export);
702 class_export_put(export);
705 } else if (export != NULL && export->exp_connection != NULL &&
706 req->rq_peer.nid != export->exp_connection->c_peer.nid) {
707 /* make darn sure this is coming from the same peer
708 * if the UUIDs matched */
709 CWARN("%s: cookie %s seen on new NID %s when "
710 "existing NID %s is already connected\n",
711 target->obd_name, cluuid.uuid,
712 libcfs_nid2str(req->rq_peer.nid),
713 libcfs_nid2str(export->exp_connection->c_peer.nid));
714 class_export_put(export);
717 } else if (export != NULL) {
718 spin_lock(&export->exp_lock);
719 export->exp_connecting = 1;
720 spin_unlock(&export->exp_lock);
721 class_export_put(export);
722 spin_unlock(&target->obd_dev_lock);
723 LASSERT(export->exp_obd == target);
725 rc = target_handle_reconnect(&conn, export, &cluuid, initial_conn);
728 /* If we found an export, we already unlocked. */
730 spin_unlock(&target->obd_dev_lock);
731 OBD_FAIL_TIMEOUT(OBD_FAIL_TGT_DELAY_CONNECT, 2 * obd_timeout);
732 } else if (req->rq_export == NULL &&
733 atomic_read(&export->exp_rpc_count) > 0) {
734 CWARN("%s: refuse connection from %s/%s to 0x%p/%d\n",
735 target->obd_name, cluuid.uuid,
736 libcfs_nid2str(req->rq_peer.nid),
737 export, atomic_read(&export->exp_refcount));
738 GOTO(out, rc = -EBUSY);
739 } else if (req->rq_export != NULL &&
740 (atomic_read(&export->exp_rpc_count) > 1)) {
741 CWARN("%s: refuse reconnection from %s@%s to 0x%p/%d\n",
742 target->obd_name, cluuid.uuid,
743 libcfs_nid2str(req->rq_peer.nid),
744 export, atomic_read(&export->exp_rpc_count));
745 GOTO(out, rc = -EBUSY);
746 } else if (lustre_msg_get_conn_cnt(req->rq_reqmsg) == 1 &&
748 CERROR("%s: NID %s (%s) reconnected with 1 conn_cnt; "
749 "cookies not random?\n", target->obd_name,
750 libcfs_nid2str(req->rq_peer.nid), cluuid.uuid);
751 GOTO(out, rc = -EALREADY);
753 OBD_FAIL_TIMEOUT(OBD_FAIL_TGT_DELAY_RECONNECT, 2 * obd_timeout);
754 if (req->rq_export == NULL && initial_conn)
755 export->exp_last_request_time =
756 max(export->exp_last_request_time,
757 (time_t)CURRENT_SECONDS);
760 /* We want to handle EALREADY but *not* -EALREADY from
761 * target_handle_reconnect(), return reconnection state in a flag */
762 if (rc == EALREADY) {
763 lustre_msg_add_op_flags(req->rq_repmsg, MSG_CONNECT_RECONNECT);
768 /* Tell the client if we're in recovery. */
769 /* If this is the first client, start the recovery timer */
770 CWARN("%s: connection from %s@%s %st"LPU64" exp %p cur %ld last %ld\n",
771 target->obd_name, cluuid.uuid, libcfs_nid2str(req->rq_peer.nid),
772 target->obd_recovering ? "recovering/" : "", data->ocd_transno,
773 export, (long)CURRENT_SECONDS,
774 export ? (long)export->exp_last_request_time : 0);
777 if (target->obd_recovering) {
778 lustre_msg_add_op_flags(req->rq_repmsg, MSG_CONNECT_RECOVERING);
779 target_start_recovery_timer(target);
782 /* Tell the client if we support replayable requests */
783 if (target->obd_replayable)
784 lustre_msg_add_op_flags(req->rq_repmsg, MSG_CONNECT_REPLAYABLE);
786 if (export == NULL) {
787 if (target->obd_recovering) {
790 t = cfs_timer_deadline(&target->obd_recovery_timer);
791 t = cfs_time_sub(t, cfs_time_current());
792 CERROR("%s: denying connection for new client %s (%s): "
793 "%d clients in recovery for %lds\n",
795 libcfs_nid2str(req->rq_peer.nid), cluuid.uuid,
796 target->obd_recoverable_clients,
797 cfs_duration_sec(t));
801 rc = obd_connect(req->rq_svc_thread->t_env,
802 &conn, target, &cluuid, data);
805 rc = obd_reconnect(req->rq_svc_thread->t_env,
806 export, target, &cluuid, data);
810 /* Return only the parts of obd_connect_data that we understand, so the
811 * client knows that we don't understand the rest. */
813 tmpdata = req_capsule_server_get(&req->rq_pill,
815 //data->ocd_connect_flags &= OBD_CONNECT_SUPPORTED;
819 /* If all else goes well, this is our RPC return code. */
822 lustre_msg_set_handle(req->rq_repmsg, &conn);
824 /* ownership of this export ref transfers to the request AFTER we
825 * drop any previous reference the request had, but we don't want
826 * that to go to zero before we get our new export reference. */
827 export = class_conn2export(&conn);
829 DEBUG_REQ(D_ERROR, req, "Missing export!");
830 GOTO(out, rc = -ENODEV);
833 /* If the client and the server are the same node, we will already
834 * have an export that really points to the client's DLM export,
835 * because we have a shared handles table.
837 * XXX this will go away when shaver stops sending the "connect" handle
838 * in the real "remote handle" field of the request --phik 24 Apr 2003
840 if (req->rq_export != NULL)
841 class_export_put(req->rq_export);
843 req->rq_export = export;
845 spin_lock(&export->exp_lock);
847 lustre_msg_set_conn_cnt(req->rq_repmsg, export->exp_conn_cnt + 1);
848 } else if (export->exp_conn_cnt >= lustre_msg_get_conn_cnt(req->rq_reqmsg)) {
849 spin_unlock(&export->exp_lock);
850 CERROR("%s: %s already connected at higher conn_cnt: %d > %d\n",
851 cluuid.uuid, libcfs_nid2str(req->rq_peer.nid),
852 export->exp_conn_cnt,
853 lustre_msg_get_conn_cnt(req->rq_reqmsg));
855 GOTO(out, rc = -EALREADY);
857 export->exp_conn_cnt = lustre_msg_get_conn_cnt(req->rq_reqmsg);
859 /* request from liblustre? Don't evict it for not pinging. */
860 if (lustre_msg_get_op_flags(req->rq_reqmsg) & MSG_CONNECT_LIBCLIENT) {
861 export->exp_libclient = 1;
862 spin_unlock(&export->exp_lock);
864 spin_lock(&target->obd_dev_lock);
865 list_del_init(&export->exp_obd_chain_timed);
866 spin_unlock(&target->obd_dev_lock);
868 spin_unlock(&export->exp_lock);
871 if (export->exp_connection != NULL)
872 ptlrpc_put_connection(export->exp_connection);
873 export->exp_connection = ptlrpc_get_connection(req->rq_peer,
877 spin_lock(&target->obd_dev_lock);
878 /* Export might be hashed already, e.g. if this is reconnect */
879 if (hlist_unhashed(&export->exp_nid_hash))
880 lustre_hash_additem(export->exp_obd->obd_nid_hash_body,
881 &export->exp_connection->c_peer.nid,
882 &export->exp_nid_hash);
883 spin_unlock(&target->obd_dev_lock);
885 spin_lock_bh(&target->obd_processing_task_lock);
886 if (target->obd_recovering && !export->exp_in_recovery) {
887 spin_lock(&export->exp_lock);
888 export->exp_in_recovery = 1;
889 export->exp_req_replay_needed = 1;
890 export->exp_lock_replay_needed = 1;
891 spin_unlock(&export->exp_lock);
892 if ((lustre_msg_get_op_flags(req->rq_reqmsg) & MSG_CONNECT_TRANSNO)
893 && data->ocd_transno < target->obd_next_recovery_transno)
894 target->obd_next_recovery_transno = data->ocd_transno;
895 target->obd_connected_clients++;
896 /* each connected client is counted as recoverable */
897 target->obd_recoverable_clients++;
898 atomic_inc(&target->obd_req_replay_clients);
899 atomic_inc(&target->obd_lock_replay_clients);
900 if (target->obd_connected_clients ==
901 target->obd_max_recoverable_clients)
902 wake_up(&target->obd_next_transno_waitq);
904 spin_unlock_bh(&target->obd_processing_task_lock);
905 tmp = req_capsule_client_get(&req->rq_pill, &RMF_CONN);
908 if (export->exp_imp_reverse != NULL) {
909 /* destroyed import can be still referenced in ctxt */
910 obd_set_info_async(export, strlen(KEY_REVIMP_UPD),
911 KEY_REVIMP_UPD, 0, NULL, NULL);
913 /* in some recovery senarios, previous ctx init rpc handled
914 * in sptlrpc_target_export_check() might be used to install
915 * a reverse ctx in this reverse import, and later OBD_CONNECT
916 * using the same gss ctx could reach here and following new
917 * reverse import. note all reverse ctx in new/old import are
918 * actually based on the same gss ctx. so we invalidate ctx
919 * here before destroy import, otherwise flush old import will
920 * lead to remote reverse ctx be destroied, thus the reverse
921 * ctx of new import will lost its peer.
922 * there might be a better way to deal with this???
924 sptlrpc_import_inval_all_ctx(export->exp_imp_reverse);
926 destroy_import(export->exp_imp_reverse);
929 /* for the rest part, we return -ENOTCONN in case of errors
930 * in order to let client initialize connection again.
932 revimp = export->exp_imp_reverse = class_new_import(target);
934 CERROR("fail to alloc new reverse import.\n");
935 GOTO(out, rc = -ENOTCONN);
938 revimp->imp_connection = ptlrpc_connection_addref(export->exp_connection);
939 revimp->imp_client = &export->exp_obd->obd_ldlm_client;
940 revimp->imp_remote_handle = conn;
941 revimp->imp_dlm_fake = 1;
942 revimp->imp_state = LUSTRE_IMP_FULL;
944 if (lustre_msg_get_op_flags(req->rq_reqmsg) & MSG_CONNECT_NEXT_VER) {
945 revimp->imp_msg_magic = LUSTRE_MSG_MAGIC_V2;
946 lustre_msg_add_op_flags(req->rq_repmsg, MSG_CONNECT_NEXT_VER);
949 rc = sptlrpc_import_sec_adapt(revimp, req->rq_svc_ctx,
950 req->rq_flvr.sf_rpc);
952 CERROR("Failed to get sec for reverse import: %d\n", rc);
953 export->exp_imp_reverse = NULL;
954 class_destroy_import(revimp);
957 class_import_put(revimp);
960 spin_lock(&export->exp_lock);
961 export->exp_connecting = 0;
962 spin_unlock(&export->exp_lock);
965 class_decref(targref);
971 int target_handle_disconnect(struct ptlrpc_request *req)
976 rc = req_capsule_server_pack(&req->rq_pill);
980 /* keep the rq_export around so we can send the reply */
981 req->rq_status = obd_disconnect(class_export_get(req->rq_export));
986 void target_destroy_export(struct obd_export *exp)
988 /* exports created from last_rcvd data, and "fake"
989 exports created by lctl don't have an import */
990 if (exp->exp_imp_reverse != NULL)
991 destroy_import(exp->exp_imp_reverse);
993 /* We cancel locks at disconnect time, but this will catch any locks
994 * granted in a race with recovery-induced disconnect. */
995 if (exp->exp_obd->obd_namespace != NULL)
996 ldlm_cancel_locks_for_export(exp);
1000 * Recovery functions
1003 struct ptlrpc_request *ptlrpc_clone_req( struct ptlrpc_request *orig_req)
1005 struct ptlrpc_request *copy_req;
1006 struct lustre_msg *copy_reqmsg;
1007 struct ptlrpc_user_desc *udesc = NULL;
1009 OBD_ALLOC_PTR(copy_req);
1012 OBD_ALLOC(copy_reqmsg, orig_req->rq_reqlen);
1014 OBD_FREE_PTR(copy_req);
1018 if (orig_req->rq_user_desc) {
1019 int ngroups = orig_req->rq_user_desc->pud_ngroups;
1021 OBD_ALLOC(udesc, sptlrpc_user_desc_size(ngroups));
1023 OBD_FREE(copy_reqmsg, orig_req->rq_reqlen);
1024 OBD_FREE_PTR(copy_req);
1027 memcpy(udesc, orig_req->rq_user_desc,
1028 sptlrpc_user_desc_size(ngroups));
1031 *copy_req = *orig_req;
1032 memcpy(copy_reqmsg, orig_req->rq_reqmsg, orig_req->rq_reqlen);
1033 copy_req->rq_reqmsg = copy_reqmsg;
1034 copy_req->rq_user_desc = udesc;
1036 class_export_get(copy_req->rq_export);
1037 CFS_INIT_LIST_HEAD(©_req->rq_list);
1038 sptlrpc_svc_ctx_addref(copy_req);
1040 if (copy_req->rq_reply_state) {
1041 /* the copied req takes over the reply state */
1042 orig_req->rq_reply_state = NULL;
1043 /* to catch further access */
1044 orig_req->rq_repmsg = NULL;
1045 orig_req->rq_replen = 0;
1051 void ptlrpc_free_clone( struct ptlrpc_request *req)
1053 if (req->rq_reply_state) {
1054 ptlrpc_rs_decref(req->rq_reply_state);
1055 req->rq_reply_state = NULL;
1058 sptlrpc_svc_ctx_decref(req);
1059 class_export_put(req->rq_export);
1060 list_del(&req->rq_list);
1062 if (req->rq_user_desc) {
1063 int ngroups = req->rq_user_desc->pud_ngroups;
1064 OBD_FREE(req->rq_user_desc, sptlrpc_user_desc_size(ngroups));
1066 OBD_FREE(req->rq_reqmsg, req->rq_reqlen);
1071 static void target_finish_recovery(struct obd_device *obd)
1074 LCONSOLE_INFO("%s: sending delayed replies to recovered clients\n",
1077 ldlm_reprocess_all_ns(obd->obd_namespace);
1079 /* when recovery finished, cleanup orphans on mds and ost */
1080 if (OBT(obd) && OBP(obd, postrecov)) {
1081 int rc = OBP(obd, postrecov)(obd);
1082 LCONSOLE_WARN("%s: recovery %s: rc %d\n", obd->obd_name,
1083 rc < 0 ? "failed" : "complete", rc);
1086 obd->obd_recovery_end = CURRENT_SECONDS;
1090 static void abort_req_replay_queue(struct obd_device *obd)
1092 struct ptlrpc_request *req, *n;
1094 list_for_each_entry_safe(req, n, &obd->obd_req_replay_queue, rq_list) {
1095 DEBUG_REQ(D_WARNING, req, "aborted:");
1096 req->rq_status = -ENOTCONN;
1097 if (ptlrpc_error(req)) {
1098 DEBUG_REQ(D_ERROR, req,
1099 "failed abort_req_reply; skipping");
1101 ptlrpc_free_clone(req);
1105 static void abort_lock_replay_queue(struct obd_device *obd)
1107 struct ptlrpc_request *req, *n;
1109 list_for_each_entry_safe(req, n, &obd->obd_lock_replay_queue, rq_list){
1110 DEBUG_REQ(D_ERROR, req, "aborted:");
1111 req->rq_status = -ENOTCONN;
1112 if (ptlrpc_error(req)) {
1113 DEBUG_REQ(D_ERROR, req,
1114 "failed abort_lock_reply; skipping");
1116 ptlrpc_free_clone(req);
1121 /* Called from a cleanup function if the device is being cleaned up
1122 forcefully. The exports should all have been disconnected already,
1123 the only thing left to do is
1124 - clear the recovery flags
1126 - free queued requests and replies, but don't send replies
1127 Because the obd_stopping flag is set, no new requests should be received.
1130 void target_cleanup_recovery(struct obd_device *obd)
1132 struct ptlrpc_request *req, *n;
1135 LASSERT(obd->obd_stopping);
1137 spin_lock_bh(&obd->obd_processing_task_lock);
1138 if (!obd->obd_recovering) {
1139 spin_unlock_bh(&obd->obd_processing_task_lock);
1143 obd->obd_recovering = obd->obd_abort_recovery = 0;
1144 target_cancel_recovery_timer(obd);
1145 spin_unlock_bh(&obd->obd_processing_task_lock);
1147 list_for_each_entry_safe(req, n, &obd->obd_req_replay_queue, rq_list) {
1148 LASSERT (req->rq_reply_state == 0);
1149 ptlrpc_free_clone(req);
1151 list_for_each_entry_safe(req, n, &obd->obd_lock_replay_queue, rq_list){
1152 LASSERT (req->rq_reply_state == 0);
1153 ptlrpc_free_clone(req);
1155 list_for_each_entry_safe(req, n, &obd->obd_final_req_queue, rq_list) {
1156 LASSERT (req->rq_reply_state == 0);
1157 ptlrpc_free_clone(req);
1163 static void target_recovery_expired(unsigned long castmeharder)
1165 struct obd_device *obd = (struct obd_device *)castmeharder;
1166 CERROR("%s: recovery timed out, aborting\n", obd->obd_name);
1167 spin_lock_bh(&obd->obd_processing_task_lock);
1168 if (obd->obd_recovering)
1169 obd->obd_abort_recovery = 1;
1170 cfs_waitq_signal(&obd->obd_next_transno_waitq);
1171 spin_unlock_bh(&obd->obd_processing_task_lock);
1175 /* obd_processing_task_lock should be held */
1176 void target_cancel_recovery_timer(struct obd_device *obd)
1178 CDEBUG(D_HA, "%s: cancel recovery timer\n", obd->obd_name);
1179 cfs_timer_disarm(&obd->obd_recovery_timer);
1182 static void reset_recovery_timer(struct obd_device *obd)
1184 time_t timeout_shift = OBD_RECOVERY_TIMEOUT;
1185 spin_lock_bh(&obd->obd_processing_task_lock);
1186 if (!obd->obd_recovering) {
1187 spin_unlock_bh(&obd->obd_processing_task_lock);
1190 if (cfs_time_current_sec() + OBD_RECOVERY_TIMEOUT >
1191 obd->obd_recovery_start + obd->obd_recovery_max_time)
1192 timeout_shift = obd->obd_recovery_start +
1193 obd->obd_recovery_max_time - cfs_time_current_sec();
1194 cfs_timer_arm(&obd->obd_recovery_timer, cfs_time_shift(timeout_shift));
1195 spin_unlock_bh(&obd->obd_processing_task_lock);
1196 CDEBUG(D_HA, "%s: timer will expire in %u seconds\n", obd->obd_name,
1197 (unsigned int)timeout_shift);
1198 /* Only used for lprocfs_status */
1199 obd->obd_recovery_end = CURRENT_SECONDS + timeout_shift;
1203 /* Only start it the first time called */
1204 void target_start_recovery_timer(struct obd_device *obd)
1206 spin_lock_bh(&obd->obd_processing_task_lock);
1207 if (obd->obd_recovery_handler
1208 || timer_pending((struct timer_list *)&obd->obd_recovery_timer)) {
1209 spin_unlock_bh(&obd->obd_processing_task_lock);
1212 CWARN("%s: starting recovery timer (%us)\n", obd->obd_name,
1213 OBD_RECOVERY_TIMEOUT);
1214 cfs_timer_init(&obd->obd_recovery_timer, target_recovery_expired, obd);
1215 spin_unlock_bh(&obd->obd_processing_task_lock);
1217 reset_recovery_timer(obd);
1221 static int check_for_next_transno(struct obd_device *obd)
1223 struct ptlrpc_request *req = NULL;
1224 int wake_up = 0, connected, completed, queue_len, max;
1225 __u64 next_transno, req_transno;
1227 spin_lock_bh(&obd->obd_processing_task_lock);
1229 if (!list_empty(&obd->obd_req_replay_queue)) {
1230 req = list_entry(obd->obd_req_replay_queue.next,
1231 struct ptlrpc_request, rq_list);
1232 req_transno = lustre_msg_get_transno(req->rq_reqmsg);
1237 max = obd->obd_max_recoverable_clients;
1238 connected = obd->obd_connected_clients;
1239 completed = connected - obd->obd_recoverable_clients;
1240 queue_len = obd->obd_requests_queued_for_recovery;
1241 next_transno = obd->obd_next_recovery_transno;
1243 CDEBUG(D_HA, "max: %d, connected: %d, completed: %d, queue_len: %d, "
1244 "req_transno: "LPU64", next_transno: "LPU64"\n",
1245 max, connected, completed, queue_len, req_transno, next_transno);
1247 if (obd->obd_abort_recovery) {
1248 CDEBUG(D_HA, "waking for aborted recovery\n");
1250 } else if (atomic_read(&obd->obd_req_replay_clients) == 0) {
1251 CDEBUG(D_HA, "waking for completed recovery\n");
1253 } else if (req_transno == next_transno) {
1254 CDEBUG(D_HA, "waking for next ("LPD64")\n", next_transno);
1256 } else if (queue_len + completed == max) {
1257 /* handle gaps occured due to lost reply. It is allowed gaps
1258 * because all clients are connected and there will be resend
1259 * for missed transaction */
1260 LASSERTF(req_transno >= next_transno,
1261 "req_transno: "LPU64", next_transno: "LPU64"\n",
1262 req_transno, next_transno);
1264 CDEBUG(req_transno > obd->obd_last_committed ? D_ERROR : D_HA,
1265 "waking for skipped transno (skip: "LPD64
1266 ", ql: %d, comp: %d, conn: %d, next: "LPD64")\n",
1267 next_transno, queue_len, completed, connected, req_transno);
1268 obd->obd_next_recovery_transno = req_transno;
1270 } else if (queue_len == atomic_read(&obd->obd_req_replay_clients)) {
1271 /* some clients haven't connected in time, but we can try
1272 * to replay requests that demand on already committed ones
1273 * also, we can replay first non-committed transation */
1274 LASSERT(req_transno != 0);
1275 if (req_transno == obd->obd_last_committed + 1) {
1276 obd->obd_next_recovery_transno = req_transno;
1277 } else if (req_transno > obd->obd_last_committed) {
1278 /* can't continue recovery: have no needed transno */
1279 obd->obd_abort_recovery = 1;
1280 CDEBUG(D_ERROR, "abort due to missed clients. max: %d, "
1281 "connected: %d, completed: %d, queue_len: %d, "
1282 "req_transno: "LPU64", next_transno: "LPU64"\n",
1283 max, connected, completed, queue_len,
1284 req_transno, next_transno);
1289 spin_unlock_bh(&obd->obd_processing_task_lock);
1293 static struct ptlrpc_request *target_next_replay_req(struct obd_device *obd)
1295 struct l_wait_info lwi = { 0 };
1296 struct ptlrpc_request *req;
1298 CDEBUG(D_HA, "Waiting for transno "LPD64"\n",
1299 obd->obd_next_recovery_transno);
1300 l_wait_event(obd->obd_next_transno_waitq,
1301 check_for_next_transno(obd), &lwi);
1303 spin_lock_bh(&obd->obd_processing_task_lock);
1304 if (obd->obd_abort_recovery) {
1306 } else if (!list_empty(&obd->obd_req_replay_queue)) {
1307 req = list_entry(obd->obd_req_replay_queue.next,
1308 struct ptlrpc_request, rq_list);
1309 list_del_init(&req->rq_list);
1310 obd->obd_requests_queued_for_recovery--;
1314 spin_unlock_bh(&obd->obd_processing_task_lock);
1318 static int check_for_next_lock(struct obd_device *obd)
1320 struct ptlrpc_request *req = NULL;
1323 spin_lock_bh(&obd->obd_processing_task_lock);
1324 if (!list_empty(&obd->obd_lock_replay_queue)) {
1325 req = list_entry(obd->obd_lock_replay_queue.next,
1326 struct ptlrpc_request, rq_list);
1327 CDEBUG(D_HA, "waking for next lock\n");
1329 } else if (atomic_read(&obd->obd_lock_replay_clients) == 0) {
1330 CDEBUG(D_HA, "waking for completed lock replay\n");
1332 } else if (obd->obd_abort_recovery) {
1333 CDEBUG(D_HA, "waking for aborted recovery\n");
1336 spin_unlock_bh(&obd->obd_processing_task_lock);
1341 static struct ptlrpc_request *target_next_replay_lock(struct obd_device *obd)
1343 struct l_wait_info lwi = { 0 };
1344 struct ptlrpc_request *req;
1346 CDEBUG(D_HA, "Waiting for lock\n");
1347 l_wait_event(obd->obd_next_transno_waitq,
1348 check_for_next_lock(obd), &lwi);
1350 spin_lock_bh(&obd->obd_processing_task_lock);
1351 if (obd->obd_abort_recovery) {
1353 } else if (!list_empty(&obd->obd_lock_replay_queue)) {
1354 req = list_entry(obd->obd_lock_replay_queue.next,
1355 struct ptlrpc_request, rq_list);
1356 list_del_init(&req->rq_list);
1360 spin_unlock_bh(&obd->obd_processing_task_lock);
1364 static struct ptlrpc_request *target_next_final_ping(struct obd_device *obd)
1366 struct ptlrpc_request *req;
1368 spin_lock_bh(&obd->obd_processing_task_lock);
1369 if (!list_empty(&obd->obd_final_req_queue)) {
1370 req = list_entry(obd->obd_final_req_queue.next,
1371 struct ptlrpc_request, rq_list);
1372 list_del_init(&req->rq_list);
1376 spin_unlock_bh(&obd->obd_processing_task_lock);
1380 static inline int req_replay_done(struct obd_export *exp)
1382 return (exp->exp_req_replay_needed == 0);
1385 static inline int lock_replay_done(struct obd_export *exp)
1387 return (exp->exp_lock_replay_needed == 0);
1390 static inline int connect_done(struct obd_export *exp)
1392 return (exp->exp_in_recovery != 0);
1395 static int check_for_clients(struct obd_device *obd)
1397 if (obd->obd_abort_recovery)
1399 LASSERT(obd->obd_connected_clients <= obd->obd_max_recoverable_clients);
1400 if (obd->obd_no_conn == 0 &&
1401 obd->obd_connected_clients == obd->obd_max_recoverable_clients)
1406 static int handle_recovery_req(struct ptlrpc_thread *thread,
1407 struct ptlrpc_request *req,
1408 svc_handler_t handler)
1413 rc = lu_context_init(&req->rq_session, LCT_SESSION);
1415 CERROR("Failure to initialize session: %d\n", rc);
1418 req->rq_session.lc_thread = thread;
1419 lu_context_enter(&req->rq_session);
1420 req->rq_svc_thread = thread;
1421 req->rq_svc_thread->t_env->le_ses = &req->rq_session;
1425 lu_context_exit(&req->rq_session);
1426 lu_context_fini(&req->rq_session);
1427 /* don't reset timer for final stage */
1428 if (!req_replay_done(req->rq_export) ||
1429 !lock_replay_done(req->rq_export))
1430 reset_recovery_timer(class_exp2obd(req->rq_export));
1431 ptlrpc_free_clone(req);
1435 static int target_recovery_thread(void *arg)
1437 struct obd_device *obd = arg;
1438 struct ptlrpc_request *req;
1439 struct target_recovery_data *trd = &obd->obd_recovery_data;
1440 struct l_wait_info lwi = { 0 };
1441 unsigned long delta;
1442 unsigned long flags;
1444 struct ptlrpc_thread fake_svc_thread, *thread = &fake_svc_thread;
1445 __u32 recov_ctx_tags = LCT_MD_THREAD;
1449 cfs_daemonize("tgt_recov");
1451 SIGNAL_MASK_LOCK(current, flags);
1452 sigfillset(¤t->blocked);
1454 SIGNAL_MASK_UNLOCK(current, flags);
1456 rc = lu_context_init(&env.le_ctx, recov_ctx_tags);
1460 thread->t_env = &env;
1461 env.le_ctx.lc_thread = thread;
1463 CERROR("%s: started recovery thread pid %d\n", obd->obd_name,
1465 trd->trd_processing_task = current->pid;
1467 obd->obd_recovering = 1;
1468 complete(&trd->trd_starting);
1470 /* first of all, we have to know the first transno to replay */
1471 obd->obd_abort_recovery = 0;
1472 l_wait_event(obd->obd_next_transno_waitq,
1473 check_for_clients(obd), &lwi);
1475 spin_lock_bh(&obd->obd_processing_task_lock);
1476 target_cancel_recovery_timer(obd);
1477 spin_unlock_bh(&obd->obd_processing_task_lock);
1479 /* If some clients haven't connected in time, evict them */
1480 if (obd->obd_abort_recovery) {
1481 CWARN("Some clients haven't connect in time (%d/%d),"
1482 "evict them\n", obd->obd_connected_clients,
1483 obd->obd_max_recoverable_clients);
1484 obd->obd_abort_recovery = obd->obd_stopping;
1485 class_disconnect_stale_exports(obd, connect_done);
1487 /* next stage: replay requests */
1489 obd->obd_req_replaying = 1;
1490 CDEBUG(D_INFO, "1: request replay stage - %d clients from t"LPU64"\n",
1491 atomic_read(&obd->obd_req_replay_clients),
1492 obd->obd_next_recovery_transno);
1493 while ((req = target_next_replay_req(obd))) {
1494 LASSERT(trd->trd_processing_task == current->pid);
1495 DEBUG_REQ(D_HA, req, "processing t"LPD64" from %s",
1496 lustre_msg_get_transno(req->rq_reqmsg),
1497 libcfs_nid2str(req->rq_peer.nid));
1499 handle_recovery_req(thread, req,
1500 trd->trd_recovery_handler);
1501 obd->obd_replayed_requests++;
1502 spin_lock_bh(&obd->obd_processing_task_lock);
1503 obd->obd_next_recovery_transno++;
1504 spin_unlock_bh(&obd->obd_processing_task_lock);
1507 spin_lock_bh(&obd->obd_processing_task_lock);
1508 target_cancel_recovery_timer(obd);
1509 spin_unlock_bh(&obd->obd_processing_task_lock);
1511 /* If some clients haven't replayed requests in time, evict them */
1512 if (obd->obd_abort_recovery) {
1513 CDEBUG(D_ERROR, "req replay timed out, aborting ...\n");
1514 obd->obd_abort_recovery = obd->obd_stopping;
1515 class_disconnect_stale_exports(obd, req_replay_done);
1516 abort_req_replay_queue(obd);
1518 /* The second stage: replay locks */
1519 CDEBUG(D_INFO, "2: lock replay stage - %d clients\n",
1520 atomic_read(&obd->obd_lock_replay_clients));
1521 while ((req = target_next_replay_lock(obd))) {
1522 LASSERT(trd->trd_processing_task == current->pid);
1523 DEBUG_REQ(D_HA|D_WARNING, req, "processing lock from %s: ",
1524 libcfs_nid2str(req->rq_peer.nid));
1525 handle_recovery_req(thread, req,
1526 trd->trd_recovery_handler);
1527 obd->obd_replayed_locks++;
1530 spin_lock_bh(&obd->obd_processing_task_lock);
1531 target_cancel_recovery_timer(obd);
1532 spin_unlock_bh(&obd->obd_processing_task_lock);
1533 /* If some clients haven't replayed requests in time, evict them */
1534 if (obd->obd_abort_recovery) {
1536 CERROR("lock replay timed out, aborting ...\n");
1537 obd->obd_abort_recovery = obd->obd_stopping;
1538 stale = class_disconnect_stale_exports(obd, lock_replay_done);
1539 abort_lock_replay_queue(obd);
1542 /* We drop recoverying flag to forward all new requests
1543 * to regular mds_handle() since now */
1544 spin_lock_bh(&obd->obd_processing_task_lock);
1545 obd->obd_recovering = obd->obd_abort_recovery = 0;
1546 spin_unlock_bh(&obd->obd_processing_task_lock);
1547 /* The third stage: reply on final pings */
1548 CDEBUG(D_INFO, "3: final stage - process recovery completion pings\n");
1549 while ((req = target_next_final_ping(obd))) {
1550 LASSERT(trd->trd_processing_task == current->pid);
1551 DEBUG_REQ(D_HA, req, "processing final ping from %s: ",
1552 libcfs_nid2str(req->rq_peer.nid));
1553 handle_recovery_req(thread, req,
1554 trd->trd_recovery_handler);
1557 delta = (jiffies - delta) / HZ;
1558 CDEBUG(D_INFO,"4: recovery completed in %lus - %d/%d reqs/locks\n",
1559 delta, obd->obd_replayed_requests, obd->obd_replayed_locks);
1560 LASSERT(atomic_read(&obd->obd_req_replay_clients) == 0);
1561 LASSERT(atomic_read(&obd->obd_lock_replay_clients) == 0);
1562 if (delta > obd_timeout * 2) {
1563 CWARN("too long recovery - read logs\n");
1564 libcfs_debug_dumplog();
1567 target_finish_recovery(obd);
1570 trd->trd_processing_task = 0;
1571 complete(&trd->trd_finishing);
1575 int target_start_recovery_thread(struct obd_device *obd, svc_handler_t handler)
1578 struct target_recovery_data *trd = &obd->obd_recovery_data;
1580 memset(trd, 0, sizeof(*trd));
1581 init_completion(&trd->trd_starting);
1582 init_completion(&trd->trd_finishing);
1583 trd->trd_recovery_handler = handler;
1585 if (kernel_thread(target_recovery_thread, obd, 0) > 0) {
1586 wait_for_completion(&trd->trd_starting);
1587 LASSERT(obd->obd_recovering != 0);
1594 void target_stop_recovery_thread(struct obd_device *obd)
1596 spin_lock_bh(&obd->obd_processing_task_lock);
1597 if (obd->obd_recovery_data.trd_processing_task > 0) {
1598 struct target_recovery_data *trd = &obd->obd_recovery_data;
1599 CERROR("%s: Aborting recovery\n", obd->obd_name);
1600 obd->obd_abort_recovery = 1;
1601 wake_up(&obd->obd_next_transno_waitq);
1602 spin_unlock_bh(&obd->obd_processing_task_lock);
1603 wait_for_completion(&trd->trd_finishing);
1605 spin_unlock_bh(&obd->obd_processing_task_lock);
1609 void target_recovery_fini(struct obd_device *obd)
1611 class_disconnect_exports(obd);
1612 target_stop_recovery_thread(obd);
1613 target_cleanup_recovery(obd);
1615 EXPORT_SYMBOL(target_recovery_fini);
1617 void target_recovery_init(struct obd_device *obd, svc_handler_t handler)
1619 if (obd->obd_max_recoverable_clients == 0)
1622 CWARN("RECOVERY: service %s, %d recoverable clients, "
1623 "last_transno "LPU64"\n", obd->obd_name,
1624 obd->obd_max_recoverable_clients, obd->obd_last_committed);
1625 obd->obd_next_recovery_transno = obd->obd_last_committed + 1;
1626 target_start_recovery_thread(obd, handler);
1627 obd->obd_recovery_start = CURRENT_SECONDS;
1628 /* Only used for lprocfs_status */
1629 obd->obd_recovery_end = obd->obd_recovery_start + OBD_RECOVERY_TIMEOUT;
1630 /* bz13079: this should be set to desired value for ost but not for mds */
1631 obd->obd_recovery_max_time = OBD_RECOVERY_MAX_TIME;
1633 EXPORT_SYMBOL(target_recovery_init);
1637 int target_process_req_flags(struct obd_device *obd, struct ptlrpc_request *req)
1639 struct obd_export *exp = req->rq_export;
1640 LASSERT(exp != NULL);
1641 if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_REQ_REPLAY_DONE) {
1642 /* client declares he's ready to replay locks */
1643 spin_lock_bh(&obd->obd_processing_task_lock);
1644 if (exp->exp_req_replay_needed) {
1645 LASSERT(atomic_read(&obd->obd_req_replay_clients) > 0);
1646 spin_lock(&exp->exp_lock);
1647 exp->exp_req_replay_needed = 0;
1648 spin_unlock(&exp->exp_lock);
1649 atomic_dec(&obd->obd_req_replay_clients);
1650 LASSERT(obd->obd_recoverable_clients > 0);
1651 obd->obd_recoverable_clients--;
1652 if (atomic_read(&obd->obd_req_replay_clients) == 0)
1653 CDEBUG(D_HA, "all clients have replayed reqs\n");
1654 wake_up(&obd->obd_next_transno_waitq);
1656 spin_unlock_bh(&obd->obd_processing_task_lock);
1658 if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_LOCK_REPLAY_DONE) {
1659 /* client declares he's ready to complete recovery
1660 * so, we put the request on th final queue */
1661 spin_lock_bh(&obd->obd_processing_task_lock);
1662 if (exp->exp_lock_replay_needed) {
1663 LASSERT(atomic_read(&obd->obd_lock_replay_clients) > 0);
1664 spin_lock(&exp->exp_lock);
1665 exp->exp_lock_replay_needed = 0;
1666 spin_unlock(&exp->exp_lock);
1667 atomic_dec(&obd->obd_lock_replay_clients);
1668 if (atomic_read(&obd->obd_lock_replay_clients) == 0)
1669 CDEBUG(D_HA, "all clients have replayed locks\n");
1670 wake_up(&obd->obd_next_transno_waitq);
1672 spin_unlock_bh(&obd->obd_processing_task_lock);
1678 int target_queue_recovery_request(struct ptlrpc_request *req,
1679 struct obd_device *obd)
1681 struct list_head *tmp;
1683 __u64 transno = lustre_msg_get_transno(req->rq_reqmsg);
1687 if (obd->obd_recovery_data.trd_processing_task == cfs_curproc_pid()) {
1688 /* Processing the queue right now, don't re-add. */
1692 target_process_req_flags(obd, req);
1694 if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_LOCK_REPLAY_DONE) {
1695 /* client declares he's ready to complete recovery
1696 * so, we put the request on th final queue */
1697 req = ptlrpc_clone_req(req);
1700 DEBUG_REQ(D_HA, req, "queue final req");
1701 spin_lock_bh(&obd->obd_processing_task_lock);
1702 if (obd->obd_recovering)
1703 list_add_tail(&req->rq_list, &obd->obd_final_req_queue);
1705 spin_unlock_bh(&obd->obd_processing_task_lock);
1706 ptlrpc_free_clone(req);
1707 if (obd->obd_stopping) {
1713 spin_unlock_bh(&obd->obd_processing_task_lock);
1716 if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_REQ_REPLAY_DONE) {
1717 /* client declares he's ready to replay locks */
1718 req = ptlrpc_clone_req(req);
1721 DEBUG_REQ(D_HA, req, "queue lock replay req");
1722 spin_lock_bh(&obd->obd_processing_task_lock);
1723 LASSERT(obd->obd_recovering);
1724 /* usually due to recovery abort */
1725 if (!req->rq_export->exp_in_recovery) {
1726 spin_unlock_bh(&obd->obd_processing_task_lock);
1727 ptlrpc_free_clone(req);
1730 LASSERT(req->rq_export->exp_lock_replay_needed);
1731 list_add_tail(&req->rq_list, &obd->obd_lock_replay_queue);
1732 spin_unlock_bh(&obd->obd_processing_task_lock);
1733 wake_up(&obd->obd_next_transno_waitq);
1737 /* CAVEAT EMPTOR: The incoming request message has been swabbed
1738 * (i.e. buflens etc are in my own byte order), but type-dependent
1739 * buffers (eg mds_body, ost_body etc) have NOT been swabbed. */
1742 CFS_INIT_LIST_HEAD(&req->rq_list);
1743 DEBUG_REQ(D_HA, req, "not queueing");
1747 spin_lock_bh(&obd->obd_processing_task_lock);
1749 /* If we're processing the queue, we want don't want to queue this
1752 * Also, if this request has a transno less than the one we're waiting
1753 * for, we should process it now. It could (and currently always will)
1754 * be an open request for a descriptor that was opened some time ago.
1756 * Also, a resent, replayed request that has already been
1757 * handled will pass through here and be processed immediately.
1759 CWARN("Next recovery transno: "LPU64", current: "LPU64", replaying: %i\n",
1760 obd->obd_next_recovery_transno, transno, obd->obd_req_replaying);
1761 if (transno < obd->obd_next_recovery_transno && obd->obd_req_replaying) {
1762 /* Processing the queue right now, don't re-add. */
1763 LASSERT(list_empty(&req->rq_list));
1764 spin_unlock_bh(&obd->obd_processing_task_lock);
1767 spin_unlock_bh(&obd->obd_processing_task_lock);
1769 /* A resent, replayed request that is still on the queue; just drop it.
1770 The queued request will handle this. */
1771 if ((lustre_msg_get_flags(req->rq_reqmsg) & (MSG_RESENT|MSG_REPLAY)) ==
1772 (MSG_RESENT | MSG_REPLAY)) {
1773 DEBUG_REQ(D_ERROR, req, "dropping resent queued req");
1777 req = ptlrpc_clone_req(req);
1781 spin_lock_bh(&obd->obd_processing_task_lock);
1782 LASSERT(obd->obd_recovering);
1783 if (!req->rq_export->exp_in_recovery) {
1784 spin_unlock_bh(&obd->obd_processing_task_lock);
1785 ptlrpc_free_clone(req);
1788 LASSERT(req->rq_export->exp_req_replay_needed);
1791 list_for_each(tmp, &obd->obd_req_replay_queue) {
1792 struct ptlrpc_request *reqiter =
1793 list_entry(tmp, struct ptlrpc_request, rq_list);
1795 if (lustre_msg_get_transno(reqiter->rq_reqmsg) > transno) {
1796 list_add_tail(&req->rq_list, &reqiter->rq_list);
1803 list_add_tail(&req->rq_list, &obd->obd_req_replay_queue);
1805 obd->obd_requests_queued_for_recovery++;
1806 wake_up(&obd->obd_next_transno_waitq);
1807 spin_unlock_bh(&obd->obd_processing_task_lock);
1812 struct obd_device * target_req2obd(struct ptlrpc_request *req)
1814 return req->rq_export->exp_obd;
1817 static inline struct ldlm_pool *ldlm_exp2pl(struct obd_export *exp)
1819 LASSERT(exp != NULL);
1820 return &exp->exp_obd->obd_namespace->ns_pool;
1823 int target_pack_pool_reply(struct ptlrpc_request *req)
1825 struct ldlm_pool *pl;
1828 if (!req->rq_export || !exp_connect_lru_resize(req->rq_export)) {
1829 lustre_msg_set_slv(req->rq_repmsg, 0);
1830 lustre_msg_set_limit(req->rq_repmsg, 0);
1834 pl = ldlm_exp2pl(req->rq_export);
1836 spin_lock(&pl->pl_lock);
1837 LASSERT(ldlm_pool_get_slv(pl) != 0 && ldlm_pool_get_limit(pl) != 0);
1838 lustre_msg_set_slv(req->rq_repmsg, ldlm_pool_get_slv(pl));
1839 lustre_msg_set_limit(req->rq_repmsg, ldlm_pool_get_limit(pl));
1840 spin_unlock(&pl->pl_lock);
1845 int target_send_reply_msg(struct ptlrpc_request *req, int rc, int fail_id)
1847 if (OBD_FAIL_CHECK_ORSET(fail_id & ~OBD_FAIL_ONCE, OBD_FAIL_ONCE)) {
1848 DEBUG_REQ(D_ERROR, req, "dropping reply");
1853 DEBUG_REQ(D_ERROR, req, "processing error (%d)", rc);
1854 req->rq_status = rc;
1855 return (ptlrpc_error(req));
1857 DEBUG_REQ(D_NET, req, "sending reply");
1860 return (ptlrpc_send_reply(req, 1));
1863 void target_send_reply(struct ptlrpc_request *req, int rc, int fail_id)
1866 struct ptlrpc_reply_state *rs;
1867 struct obd_device *obd;
1868 struct obd_export *exp;
1869 struct ptlrpc_service *svc;
1871 if (req->rq_no_reply)
1874 svc = req->rq_rqbd->rqbd_service;
1875 rs = req->rq_reply_state;
1876 if (rs == NULL || !rs->rs_difficult) {
1878 target_send_reply_msg (req, rc, fail_id);
1882 /* must be an export if locks saved */
1883 LASSERT (req->rq_export != NULL);
1884 /* req/reply consistent */
1885 LASSERT (rs->rs_service == svc);
1888 LASSERT (!rs->rs_scheduled);
1889 LASSERT (!rs->rs_scheduled_ever);
1890 LASSERT (!rs->rs_handled);
1891 LASSERT (!rs->rs_on_net);
1892 LASSERT (rs->rs_export == NULL);
1893 LASSERT (list_empty(&rs->rs_obd_list));
1894 LASSERT (list_empty(&rs->rs_exp_list));
1896 exp = class_export_get (req->rq_export);
1899 /* disable reply scheduling onto srv_reply_queue while I'm setting up */
1900 rs->rs_scheduled = 1;
1902 rs->rs_xid = req->rq_xid;
1903 rs->rs_transno = req->rq_transno;
1904 rs->rs_export = exp;
1906 spin_lock(&obd->obd_uncommitted_replies_lock);
1908 if (rs->rs_transno > obd->obd_last_committed) {
1909 /* not committed already */
1910 list_add_tail (&rs->rs_obd_list,
1911 &obd->obd_uncommitted_replies);
1914 spin_unlock (&obd->obd_uncommitted_replies_lock);
1915 spin_lock (&exp->exp_lock);
1917 list_add_tail (&rs->rs_exp_list, &exp->exp_outstanding_replies);
1919 spin_unlock(&exp->exp_lock);
1921 netrc = target_send_reply_msg (req, rc, fail_id);
1923 spin_lock(&svc->srv_lock);
1925 svc->srv_n_difficult_replies++;
1928 /* error sending: reply is off the net. Also we need +1
1929 * reply ref until ptlrpc_server_handle_reply() is done
1930 * with the reply state (if the send was successful, there
1931 * would have been +1 ref for the net, which
1932 * reply_out_callback leaves alone) */
1934 ptlrpc_rs_addref(rs);
1935 atomic_inc (&svc->srv_outstanding_replies);
1938 if (!rs->rs_on_net || /* some notifier */
1939 list_empty(&rs->rs_exp_list) || /* completed already */
1940 list_empty(&rs->rs_obd_list)) {
1941 list_add_tail (&rs->rs_list, &svc->srv_reply_queue);
1942 cfs_waitq_signal (&svc->srv_waitq);
1944 list_add (&rs->rs_list, &svc->srv_active_replies);
1945 rs->rs_scheduled = 0; /* allow notifier to schedule */
1948 spin_unlock(&svc->srv_lock);
1951 int target_handle_ping(struct ptlrpc_request *req)
1953 obd_ping(req->rq_export);
1954 return req_capsule_server_pack(&req->rq_pill);
1957 void target_committed_to_req(struct ptlrpc_request *req)
1959 struct obd_device *obd;
1961 if (req == NULL || req->rq_export == NULL)
1964 obd = req->rq_export->exp_obd;
1968 if (!obd->obd_no_transno && req->rq_repmsg != NULL)
1969 lustre_msg_set_last_committed(req->rq_repmsg,
1970 obd->obd_last_committed);
1972 DEBUG_REQ(D_IOCTL, req, "not sending last_committed update");
1974 CDEBUG(D_INFO, "last_committed "LPU64", transno "LPU64", xid "LPU64"\n",
1975 obd->obd_last_committed, req->rq_transno, req->rq_xid);
1978 EXPORT_SYMBOL(target_committed_to_req);
1980 #ifdef HAVE_QUOTA_SUPPORT
1981 int target_handle_qc_callback(struct ptlrpc_request *req)
1983 struct obd_quotactl *oqctl;
1984 struct client_obd *cli = &req->rq_export->exp_obd->u.cli;
1986 oqctl = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
1990 cli->cl_qchk_stat = oqctl->qc_stat;
1995 int target_handle_dqacq_callback(struct ptlrpc_request *req)
1998 struct obd_device *obd = req->rq_export->exp_obd;
1999 struct obd_device *master_obd;
2000 struct lustre_quota_ctxt *qctxt;
2001 struct qunit_data *qdata;
2003 struct qunit_data_old *qdata_old;
2007 rc = req_capsule_server_pack(&req->rq_pill);
2009 CERROR("packing reply failed!: rc = %d\n", rc);
2013 LASSERT(req->rq_export);
2015 /* fixed for bug10707 */
2016 if ((req->rq_export->exp_connect_flags & OBD_CONNECT_QUOTA64) &&
2017 !OBD_FAIL_CHECK(OBD_FAIL_QUOTA_QD_COUNT_32BIT)) {
2018 CDEBUG(D_QUOTA, "qd_count is 64bit!\n");
2019 rep = req_capsule_server_get(&req->rq_pill,
2022 qdata = req_capsule_client_swab_get(&req->rq_pill,
2024 (void*)lustre_swab_qdata);
2026 CDEBUG(D_QUOTA, "qd_count is 32bit!\n");
2027 rep = req_capsule_server_get(&req->rq_pill, &RMF_QUNIT_DATA);
2029 qdata_old = req_capsule_client_swab_get(&req->rq_pill,
2031 (void*)lustre_swab_qdata_old);
2032 qdata = lustre_quota_old_to_new(qdata_old);
2038 /* we use the observer */
2039 LASSERT(obd->obd_observer && obd->obd_observer->obd_observer);
2040 master_obd = obd->obd_observer->obd_observer;
2041 qctxt = &master_obd->u.obt.obt_qctxt;
2043 LASSERT(qctxt->lqc_handler);
2044 rc = qctxt->lqc_handler(master_obd, qdata,
2045 lustre_msg_get_opc(req->rq_reqmsg));
2046 if (rc && rc != -EDQUOT)
2047 CDEBUG(rc == -EBUSY ? D_QUOTA : D_ERROR,
2048 "dqacq failed! (rc:%d)\n", rc);
2050 /* the qd_count might be changed in lqc_handler */
2051 if ((req->rq_export->exp_connect_flags & OBD_CONNECT_QUOTA64) &&
2052 !OBD_FAIL_CHECK(OBD_FAIL_QUOTA_QD_COUNT_32BIT)) {
2053 memcpy(rep, qdata, sizeof(*qdata));
2055 qdata_old = lustre_quota_new_to_old(qdata);
2056 memcpy(rep, qdata_old, sizeof(*qdata_old));
2058 req->rq_status = rc;
2059 rc = ptlrpc_reply(req);
2064 #endif /* !__KERNEL__ */
2066 #endif /* HAVE_QUOTA_SUPPORT */
2068 ldlm_mode_t lck_compat_array[] = {
2069 [LCK_EX] LCK_COMPAT_EX,
2070 [LCK_PW] LCK_COMPAT_PW,
2071 [LCK_PR] LCK_COMPAT_PR,
2072 [LCK_CW] LCK_COMPAT_CW,
2073 [LCK_CR] LCK_COMPAT_CR,
2074 [LCK_NL] LCK_COMPAT_NL,
2075 [LCK_GROUP] LCK_COMPAT_GROUP