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,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License version 2 for more details. A copy is
14 * included in the COPYING file that accompanied this code.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2013, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
31 * lustre/mdt/mdt_mds.c
33 * Lustre Metadata Service Layer
35 * Author: Di Wang <di.wang@whamcloud.com>
38 #define DEBUG_SUBSYSTEM S_MDS
40 #include <linux/module.h>
42 #include <obd_support.h>
43 /* struct ptlrpc_request */
44 #include <lustre_net.h>
45 /* struct obd_export */
46 #include <lustre_export.h>
47 /* struct obd_device */
50 #include <dt_object.h>
51 #include <lustre_mds.h>
52 #include <lustre_mdt.h>
53 #include "mdt_internal.h"
54 #include <lustre_quota.h>
55 #include <lustre_acl.h>
56 #include <lustre_param.h>
60 struct md_device mds_md_dev;
61 struct ptlrpc_service *mds_regular_service;
62 struct ptlrpc_service *mds_readpage_service;
63 struct ptlrpc_service *mds_out_service;
64 struct ptlrpc_service *mds_setattr_service;
65 struct ptlrpc_service *mds_mdsc_service;
66 struct ptlrpc_service *mds_mdss_service;
67 struct ptlrpc_service *mds_fld_service;
71 * * Initialized in mdt_mod_init().
73 static unsigned long mdt_num_threads;
74 CFS_MODULE_PARM(mdt_num_threads, "ul", ulong, 0444,
75 "number of MDS service threads to start "
76 "(deprecated in favor of mds_num_threads)");
78 static unsigned long mds_num_threads;
79 CFS_MODULE_PARM(mds_num_threads, "ul", ulong, 0444,
80 "number of MDS service threads to start");
82 static char *mds_num_cpts;
83 CFS_MODULE_PARM(mds_num_cpts, "c", charp, 0444,
84 "CPU partitions MDS threads should run on");
86 static unsigned long mds_rdpg_num_threads;
87 CFS_MODULE_PARM(mds_rdpg_num_threads, "ul", ulong, 0444,
88 "number of MDS readpage service threads to start");
90 static char *mds_rdpg_num_cpts;
91 CFS_MODULE_PARM(mds_rdpg_num_cpts, "c", charp, 0444,
92 "CPU partitions MDS readpage threads should run on");
94 /* NB: these two should be removed along with setattr service in the future */
95 static unsigned long mds_attr_num_threads;
96 CFS_MODULE_PARM(mds_attr_num_threads, "ul", ulong, 0444,
97 "number of MDS setattr service threads to start");
99 static char *mds_attr_num_cpts;
100 CFS_MODULE_PARM(mds_attr_num_cpts, "c", charp, 0444,
101 "CPU partitions MDS setattr threads should run on");
103 #define DEFINE_RPC_HANDLER(base, flags, opc, fn, fmt) \
106 .mh_fail_id = OBD_FAIL_ ## opc ## _NET, \
113 /* Request with a format known in advance */
114 #define DEF_MDT_HDL(flags, name, fn) \
115 DEFINE_RPC_HANDLER(MDS_GETATTR, flags, name, fn, &RQF_ ## name)
117 /* Request with a format we do not yet know */
118 #define DEF_MDT_HDL_VAR(flags, name, fn) \
119 DEFINE_RPC_HANDLER(MDS_GETATTR, flags, name, fn, NULL)
121 /* Map one non-standard request format handler. This should probably get
122 * a common OBD_SET_INFO RPC opcode instead of this mismatch. */
123 #define RQF_MDS_SET_INFO RQF_OBD_SET_INFO
125 static struct mdt_handler mdt_mds_ops[] = {
126 DEF_MDT_HDL(0, MDS_CONNECT, mdt_connect),
127 DEF_MDT_HDL(0, MDS_DISCONNECT, mdt_disconnect),
128 DEF_MDT_HDL(0, MDS_SET_INFO, mdt_set_info),
129 DEF_MDT_HDL(0, MDS_GET_INFO, mdt_get_info),
130 DEF_MDT_HDL(0 | HABEO_REFERO, MDS_GETSTATUS, mdt_getstatus),
131 DEF_MDT_HDL(HABEO_CORPUS, MDS_GETATTR, mdt_getattr),
132 DEF_MDT_HDL(HABEO_CORPUS| HABEO_REFERO, MDS_GETATTR_NAME, mdt_getattr_name),
133 DEF_MDT_HDL(HABEO_CORPUS, MDS_GETXATTR, mdt_getxattr),
134 DEF_MDT_HDL(0 | HABEO_REFERO, MDS_STATFS, mdt_statfs),
135 DEF_MDT_HDL(0 | MUTABOR, MDS_REINT, mdt_reint),
136 DEF_MDT_HDL(HABEO_CORPUS, MDS_CLOSE, mdt_close),
137 DEF_MDT_HDL(HABEO_CORPUS, MDS_DONE_WRITING, mdt_done_writing),
138 DEF_MDT_HDL(0 | HABEO_REFERO, MDS_PIN, mdt_pin),
139 DEF_MDT_HDL_VAR(0, MDS_SYNC, mdt_sync),
140 DEF_MDT_HDL(HABEO_CORPUS| HABEO_REFERO, MDS_IS_SUBDIR, mdt_is_subdir),
141 DEF_MDT_HDL(0, MDS_QUOTACHECK, mdt_quotacheck),
142 DEF_MDT_HDL(0, MDS_QUOTACTL, mdt_quotactl),
143 DEF_MDT_HDL(HABEO_CORPUS| HABEO_REFERO, MDS_HSM_PROGRESS, mdt_hsm_progress),
144 DEF_MDT_HDL(HABEO_CORPUS| HABEO_REFERO, MDS_HSM_CT_REGISTER,
145 mdt_hsm_ct_register),
146 DEF_MDT_HDL(HABEO_CORPUS| HABEO_REFERO, MDS_HSM_CT_UNREGISTER,
147 mdt_hsm_ct_unregister),
148 DEF_MDT_HDL(HABEO_CORPUS| HABEO_REFERO, MDS_HSM_STATE_GET,
150 DEF_MDT_HDL(HABEO_CORPUS| HABEO_REFERO, MDS_HSM_STATE_SET,
152 DEF_MDT_HDL(HABEO_CORPUS| HABEO_REFERO, MDS_HSM_ACTION, mdt_hsm_action),
153 DEF_MDT_HDL(HABEO_CORPUS| HABEO_REFERO, MDS_HSM_REQUEST, mdt_hsm_request),
154 DEF_MDT_HDL(HABEO_CORPUS|HABEO_REFERO, MDS_SWAP_LAYOUTS, mdt_swap_layouts)
157 #define DEF_OBD_HDL(flags, name, fn) \
158 DEFINE_RPC_HANDLER(OBD_PING, flags, name, fn, NULL)
160 static struct mdt_handler mdt_obd_ops[] = {
161 DEF_OBD_HDL(0, OBD_PING, mdt_obd_ping),
162 DEF_OBD_HDL(0, OBD_LOG_CANCEL, mdt_obd_log_cancel),
163 DEF_OBD_HDL(0, OBD_QC_CALLBACK, mdt_obd_qc_callback),
164 DEF_OBD_HDL(0, OBD_IDX_READ, mdt_obd_idx_read)
167 #define DEF_DLM_HDL_VAR(flags, name, fn) \
168 DEFINE_RPC_HANDLER(LDLM_ENQUEUE, flags, name, fn, NULL)
169 #define DEF_DLM_HDL(flags, name, fn) \
170 DEFINE_RPC_HANDLER(LDLM_ENQUEUE, flags, name, fn, &RQF_ ## name)
172 static struct mdt_handler mdt_dlm_ops[] = {
173 DEF_DLM_HDL (HABEO_CLAVIS, LDLM_ENQUEUE, mdt_enqueue),
174 DEF_DLM_HDL_VAR(HABEO_CLAVIS, LDLM_CONVERT, mdt_convert),
175 DEF_DLM_HDL_VAR(0, LDLM_BL_CALLBACK, mdt_bl_callback),
176 DEF_DLM_HDL_VAR(0, LDLM_CP_CALLBACK, mdt_cp_callback)
179 #define DEF_LLOG_HDL(flags, name, fn) \
180 DEFINE_RPC_HANDLER(LLOG_ORIGIN_HANDLE_CREATE, flags, name, fn, NULL)
182 static struct mdt_handler mdt_llog_ops[] = {
183 DEF_LLOG_HDL(0, LLOG_ORIGIN_HANDLE_CREATE, mdt_llog_create),
184 DEF_LLOG_HDL(0, LLOG_ORIGIN_HANDLE_NEXT_BLOCK, mdt_llog_next_block),
185 DEF_LLOG_HDL(0, LLOG_ORIGIN_HANDLE_READ_HEADER, mdt_llog_read_header),
186 DEF_LLOG_HDL(0, LLOG_ORIGIN_HANDLE_WRITE_REC, NULL),
187 DEF_LLOG_HDL(0, LLOG_ORIGIN_HANDLE_CLOSE, NULL),
188 DEF_LLOG_HDL(0, LLOG_ORIGIN_CONNECT, NULL),
189 DEF_LLOG_HDL(0, LLOG_CATINFO, NULL),
190 DEF_LLOG_HDL(0, LLOG_ORIGIN_HANDLE_PREV_BLOCK, mdt_llog_prev_block),
191 DEF_LLOG_HDL(0, LLOG_ORIGIN_HANDLE_DESTROY, mdt_llog_destroy),
194 #define DEF_SEC_HDL(flags, name, fn) \
195 DEFINE_RPC_HANDLER(SEC_CTX_INIT, flags, name, fn, NULL)
197 static struct mdt_handler mdt_sec_ctx_ops[] = {
198 DEF_SEC_HDL(0, SEC_CTX_INIT, mdt_sec_ctx_handle),
199 DEF_SEC_HDL(0, SEC_CTX_INIT_CONT,mdt_sec_ctx_handle),
200 DEF_SEC_HDL(0, SEC_CTX_FINI, mdt_sec_ctx_handle)
203 #define DEF_QUOTA_HDL(flags, name, fn) \
204 DEFINE_RPC_HANDLER(QUOTA_DQACQ, flags, name, fn, &RQF_ ## name)
206 static struct mdt_handler mdt_quota_ops[] = {
207 DEF_QUOTA_HDL(HABEO_REFERO, QUOTA_DQACQ, mdt_quota_dqacq),
210 struct mdt_opc_slice mdt_regular_handlers[] = {
212 .mos_opc_start = MDS_GETATTR,
213 .mos_opc_end = MDS_LAST_OPC,
214 .mos_hs = mdt_mds_ops
217 .mos_opc_start = OBD_PING,
218 .mos_opc_end = OBD_LAST_OPC,
219 .mos_hs = mdt_obd_ops
222 .mos_opc_start = LDLM_ENQUEUE,
223 .mos_opc_end = LDLM_LAST_OPC,
224 .mos_hs = mdt_dlm_ops
227 .mos_opc_start = LLOG_ORIGIN_HANDLE_CREATE,
228 .mos_opc_end = LLOG_LAST_OPC,
229 .mos_hs = mdt_llog_ops
232 .mos_opc_start = SEC_CTX_INIT,
233 .mos_opc_end = SEC_LAST_OPC,
234 .mos_hs = mdt_sec_ctx_ops
237 .mos_opc_start = QUOTA_DQACQ,
238 .mos_opc_end = QUOTA_LAST_OPC,
239 .mos_hs = mdt_quota_ops
246 /* Readpage/readdir handlers */
247 static struct mdt_handler mdt_readpage_ops[] = {
248 DEF_MDT_HDL(0, MDS_CONNECT, mdt_connect),
249 DEF_MDT_HDL(HABEO_CORPUS | HABEO_REFERO, MDS_READPAGE, mdt_readpage),
250 /* XXX: this is ugly and should be fixed one day, see mdc_close() for
251 * detailed comments. --umka */
252 DEF_MDT_HDL(HABEO_CORPUS, MDS_CLOSE, mdt_close),
253 DEF_MDT_HDL(HABEO_CORPUS, MDS_DONE_WRITING, mdt_done_writing),
256 static struct mdt_opc_slice mdt_readpage_handlers[] = {
258 .mos_opc_start = MDS_GETATTR,
259 .mos_opc_end = MDS_LAST_OPC,
260 .mos_hs = mdt_readpage_ops
263 .mos_opc_start = OBD_FIRST_OPC,
264 .mos_opc_end = OBD_LAST_OPC,
265 .mos_hs = mdt_obd_ops
272 /* Sequence service handlers */
273 #define DEF_SEQ_HDL(flags, name, fn) \
274 DEFINE_RPC_HANDLER(SEQ_QUERY, flags, name, fn, &RQF_ ## name)
276 static struct mdt_handler mdt_seq_ops[] = {
277 DEF_SEQ_HDL(0, SEQ_QUERY, (void *)seq_query),
280 struct mdt_opc_slice mdt_seq_handlers[] = {
282 .mos_opc_start = SEQ_QUERY,
283 .mos_opc_end = SEQ_LAST_OPC,
284 .mos_hs = mdt_seq_ops
291 /* FID Location Database handlers */
292 #define DEF_FLD_HDL(flags, name, fn) \
293 DEFINE_RPC_HANDLER(FLD_QUERY, flags, name, fn, &RQF_ ## name)
295 static struct mdt_handler mdt_fld_ops[] = {
296 DEF_FLD_HDL(0, FLD_QUERY, (void *)fld_query),
299 struct mdt_opc_slice mdt_fld_handlers[] = {
301 .mos_opc_start = FLD_QUERY,
302 .mos_opc_end = FLD_LAST_OPC,
303 .mos_hs = mdt_fld_ops
310 static int mds_regular_handle(struct ptlrpc_request *req)
312 return mdt_handle_common(req, mdt_regular_handlers);
315 static int mds_readpage_handle(struct ptlrpc_request *req)
317 return mdt_handle_common(req, mdt_readpage_handlers);
320 static int mds_mdsc_handle(struct ptlrpc_request *req)
322 return mdt_handle_common(req, mdt_seq_handlers);
325 static int mds_mdss_handle(struct ptlrpc_request *req)
327 return mdt_handle_common(req, mdt_seq_handlers);
330 static int mds_fld_handle(struct ptlrpc_request *req)
332 return mdt_handle_common(req, mdt_fld_handlers);
335 /* device init/fini methods */
336 static void mds_stop_ptlrpc_service(struct mds_device *m)
339 if (m->mds_regular_service != NULL) {
340 ptlrpc_unregister_service(m->mds_regular_service);
341 m->mds_regular_service = NULL;
343 if (m->mds_readpage_service != NULL) {
344 ptlrpc_unregister_service(m->mds_readpage_service);
345 m->mds_readpage_service = NULL;
347 if (m->mds_out_service != NULL) {
348 ptlrpc_unregister_service(m->mds_out_service);
349 m->mds_out_service = NULL;
351 if (m->mds_setattr_service != NULL) {
352 ptlrpc_unregister_service(m->mds_setattr_service);
353 m->mds_setattr_service = NULL;
355 if (m->mds_mdsc_service != NULL) {
356 ptlrpc_unregister_service(m->mds_mdsc_service);
357 m->mds_mdsc_service = NULL;
359 if (m->mds_mdss_service != NULL) {
360 ptlrpc_unregister_service(m->mds_mdss_service);
361 m->mds_mdss_service = NULL;
363 if (m->mds_fld_service != NULL) {
364 ptlrpc_unregister_service(m->mds_fld_service);
365 m->mds_fld_service = NULL;
370 static int mds_start_ptlrpc_service(struct mds_device *m)
372 static struct ptlrpc_service_conf conf;
373 struct obd_device *obd = m->mds_md_dev.md_lu_dev.ld_obd;
374 cfs_proc_dir_entry_t *procfs_entry;
378 procfs_entry = obd->obd_proc_entry;
379 LASSERT(procfs_entry != NULL);
381 conf = (typeof(conf)) {
382 .psc_name = LUSTRE_MDT_NAME,
383 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
385 .bc_nbufs = MDS_NBUFS,
386 .bc_buf_size = MDS_REG_BUFSIZE,
387 .bc_req_max_size = MDS_REG_MAXREQSIZE,
388 .bc_rep_max_size = MDS_REG_MAXREPSIZE,
389 .bc_req_portal = MDS_REQUEST_PORTAL,
390 .bc_rep_portal = MDC_REPLY_PORTAL,
393 * We'd like to have a mechanism to set this on a per-device
397 .tc_thr_name = LUSTRE_MDT_NAME,
398 .tc_thr_factor = MDS_THR_FACTOR,
399 .tc_nthrs_init = MDS_NTHRS_INIT,
400 .tc_nthrs_base = MDS_NTHRS_BASE,
401 .tc_nthrs_max = MDS_NTHRS_MAX,
402 .tc_nthrs_user = mds_num_threads,
403 .tc_cpu_affinity = 1,
404 .tc_ctx_tags = LCT_MD_THREAD,
407 .cc_pattern = mds_num_cpts,
410 .so_req_handler = mds_regular_handle,
411 .so_req_printer = target_print_req,
412 .so_hpreq_handler = ptlrpc_hpreq_handler,
415 m->mds_regular_service = ptlrpc_register_service(&conf, procfs_entry);
416 if (IS_ERR(m->mds_regular_service)) {
417 rc = PTR_ERR(m->mds_regular_service);
418 CERROR("failed to start regular mdt service: %d\n", rc);
419 m->mds_regular_service = NULL;
425 * readpage service configuration. Parameters have to be adjusted,
428 memset(&conf, 0, sizeof(conf));
429 conf = (typeof(conf)) {
430 .psc_name = LUSTRE_MDT_NAME "_readpage",
431 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
433 .bc_nbufs = MDS_NBUFS,
434 .bc_buf_size = MDS_BUFSIZE,
435 .bc_req_max_size = MDS_MAXREQSIZE,
436 .bc_rep_max_size = MDS_MAXREPSIZE,
437 .bc_req_portal = MDS_READPAGE_PORTAL,
438 .bc_rep_portal = MDC_REPLY_PORTAL,
441 .tc_thr_name = LUSTRE_MDT_NAME "_rdpg",
442 .tc_thr_factor = MDS_RDPG_THR_FACTOR,
443 .tc_nthrs_init = MDS_RDPG_NTHRS_INIT,
444 .tc_nthrs_base = MDS_RDPG_NTHRS_BASE,
445 .tc_nthrs_max = MDS_RDPG_NTHRS_MAX,
446 .tc_nthrs_user = mds_rdpg_num_threads,
447 .tc_cpu_affinity = 1,
448 .tc_ctx_tags = LCT_MD_THREAD,
451 .cc_pattern = mds_rdpg_num_cpts,
454 .so_req_handler = mds_readpage_handle,
455 .so_req_printer = target_print_req,
458 m->mds_readpage_service = ptlrpc_register_service(&conf, procfs_entry);
459 if (IS_ERR(m->mds_readpage_service)) {
460 rc = PTR_ERR(m->mds_readpage_service);
461 CERROR("failed to start readpage service: %d\n", rc);
462 m->mds_readpage_service = NULL;
464 GOTO(err_mds_svc, rc);
468 * setattr service configuration.
470 * XXX To keep the compatibility with old client(< 2.2), we need to
471 * preserve this portal for a certain time, it should be removed
472 * eventually. LU-617.
474 memset(&conf, 0, sizeof(conf));
475 conf = (typeof(conf)) {
476 .psc_name = LUSTRE_MDT_NAME "_setattr",
477 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
479 .bc_nbufs = MDS_NBUFS,
480 .bc_buf_size = MDS_BUFSIZE,
481 .bc_req_max_size = MDS_MAXREQSIZE,
482 .bc_rep_max_size = MDS_LOV_MAXREPSIZE,
483 .bc_req_portal = MDS_SETATTR_PORTAL,
484 .bc_rep_portal = MDC_REPLY_PORTAL,
487 .tc_thr_name = LUSTRE_MDT_NAME "_attr",
488 .tc_thr_factor = MDS_SETA_THR_FACTOR,
489 .tc_nthrs_init = MDS_SETA_NTHRS_INIT,
490 .tc_nthrs_base = MDS_SETA_NTHRS_BASE,
491 .tc_nthrs_max = MDS_SETA_NTHRS_MAX,
492 .tc_nthrs_user = mds_attr_num_threads,
493 .tc_cpu_affinity = 1,
494 .tc_ctx_tags = LCT_MD_THREAD,
497 .cc_pattern = mds_attr_num_cpts,
500 .so_req_handler = mds_regular_handle,
501 .so_req_printer = target_print_req,
502 .so_hpreq_handler = NULL,
505 m->mds_setattr_service = ptlrpc_register_service(&conf, procfs_entry);
506 if (IS_ERR(m->mds_setattr_service)) {
507 rc = PTR_ERR(m->mds_setattr_service);
508 CERROR("failed to start setattr service: %d\n", rc);
509 m->mds_setattr_service = NULL;
511 GOTO(err_mds_svc, rc);
514 /* Object update service */
515 conf = (typeof(conf)) {
516 .psc_name = LUSTRE_MDT_NAME "_out",
517 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
519 .bc_nbufs = MDS_NBUFS,
520 .bc_buf_size = OUT_BUFSIZE,
521 .bc_req_max_size = OUT_MAXREQSIZE,
522 .bc_rep_max_size = OUT_MAXREPSIZE,
523 .bc_req_portal = OUT_PORTAL,
524 .bc_rep_portal = MDC_REPLY_PORTAL,
527 * We'd like to have a mechanism to set this on a per-device
531 .tc_thr_name = LUSTRE_MDT_NAME "_out",
532 .tc_thr_factor = MDS_THR_FACTOR,
533 .tc_nthrs_init = MDS_NTHRS_INIT,
534 .tc_nthrs_base = MDS_NTHRS_BASE,
535 .tc_nthrs_max = MDS_NTHRS_MAX,
536 .tc_nthrs_user = mds_num_threads,
537 .tc_cpu_affinity = 1,
538 .tc_ctx_tags = LCT_MD_THREAD,
541 .cc_pattern = mds_num_cpts,
544 .so_req_handler = tgt_request_handle,
545 .so_req_printer = target_print_req,
546 .so_hpreq_handler = NULL,
549 m->mds_out_service = ptlrpc_register_service(&conf, procfs_entry);
550 if (IS_ERR(m->mds_out_service)) {
551 rc = PTR_ERR(m->mds_out_service);
552 CERROR("failed to start out service: %d\n", rc);
553 m->mds_out_service = NULL;
554 GOTO(err_mds_svc, rc);
558 * sequence controller service configuration
560 memset(&conf, 0, sizeof(conf));
561 conf = (typeof(conf)) {
562 .psc_name = LUSTRE_MDT_NAME "_seqs",
563 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
565 .bc_nbufs = MDS_NBUFS,
566 .bc_buf_size = SEQ_BUFSIZE,
567 .bc_req_max_size = SEQ_MAXREQSIZE,
568 .bc_rep_max_size = SEQ_MAXREPSIZE,
569 .bc_req_portal = SEQ_CONTROLLER_PORTAL,
570 .bc_rep_portal = MDC_REPLY_PORTAL,
573 .tc_thr_name = LUSTRE_MDT_NAME "_seqs",
574 .tc_nthrs_init = MDS_OTHR_NTHRS_INIT,
575 .tc_nthrs_max = MDS_OTHR_NTHRS_MAX,
576 .tc_ctx_tags = LCT_MD_THREAD,
579 .so_req_handler = mds_mdsc_handle,
580 .so_req_printer = target_print_req,
581 .so_hpreq_handler = NULL,
584 m->mds_mdsc_service = ptlrpc_register_service(&conf, procfs_entry);
585 if (IS_ERR(m->mds_mdsc_service)) {
586 rc = PTR_ERR(m->mds_mdsc_service);
587 CERROR("failed to start seq controller service: %d\n", rc);
588 m->mds_mdsc_service = NULL;
590 GOTO(err_mds_svc, rc);
594 * metadata sequence server service configuration
596 memset(&conf, 0, sizeof(conf));
597 conf = (typeof(conf)) {
598 .psc_name = LUSTRE_MDT_NAME "_seqm",
599 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
601 .bc_nbufs = MDS_NBUFS,
602 .bc_buf_size = SEQ_BUFSIZE,
603 .bc_req_max_size = SEQ_MAXREQSIZE,
604 .bc_rep_max_size = SEQ_MAXREPSIZE,
605 .bc_req_portal = SEQ_METADATA_PORTAL,
606 .bc_rep_portal = MDC_REPLY_PORTAL,
609 .tc_thr_name = LUSTRE_MDT_NAME "_seqm",
610 .tc_nthrs_init = MDS_OTHR_NTHRS_INIT,
611 .tc_nthrs_max = MDS_OTHR_NTHRS_MAX,
612 .tc_ctx_tags = LCT_MD_THREAD | LCT_DT_THREAD
615 .so_req_handler = mds_mdss_handle,
616 .so_req_printer = target_print_req,
617 .so_hpreq_handler = NULL,
620 m->mds_mdss_service = ptlrpc_register_service(&conf, procfs_entry);
621 if (IS_ERR(m->mds_mdss_service)) {
622 rc = PTR_ERR(m->mds_mdss_service);
623 CERROR("failed to start metadata seq server service: %d\n", rc);
624 m->mds_mdss_service = NULL;
626 GOTO(err_mds_svc, rc);
629 /* FLD service start */
630 memset(&conf, 0, sizeof(conf));
631 conf = (typeof(conf)) {
632 .psc_name = LUSTRE_MDT_NAME "_fld",
633 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
635 .bc_nbufs = MDS_NBUFS,
636 .bc_buf_size = FLD_BUFSIZE,
637 .bc_req_max_size = FLD_MAXREQSIZE,
638 .bc_rep_max_size = FLD_MAXREPSIZE,
639 .bc_req_portal = FLD_REQUEST_PORTAL,
640 .bc_rep_portal = MDC_REPLY_PORTAL,
643 .tc_thr_name = LUSTRE_MDT_NAME "_fld",
644 .tc_nthrs_init = MDS_OTHR_NTHRS_INIT,
645 .tc_nthrs_max = MDS_OTHR_NTHRS_MAX,
646 .tc_ctx_tags = LCT_DT_THREAD | LCT_MD_THREAD
649 .so_req_handler = mds_fld_handle,
650 .so_req_printer = target_print_req,
651 .so_hpreq_handler = NULL,
654 m->mds_fld_service = ptlrpc_register_service(&conf, procfs_entry);
655 if (IS_ERR(m->mds_fld_service)) {
656 rc = PTR_ERR(m->mds_fld_service);
657 CERROR("failed to start fld service: %d\n", rc);
658 m->mds_fld_service = NULL;
660 GOTO(err_mds_svc, rc);
666 mds_stop_ptlrpc_service(m);
671 static inline struct mds_device *mds_dev(struct lu_device *d)
673 return container_of0(d, struct mds_device, mds_md_dev.md_lu_dev);
676 static struct lu_device *mds_device_fini(const struct lu_env *env,
679 struct mds_device *m = mds_dev(d);
680 struct obd_device *obd = d->ld_obd;
683 mds_stop_ptlrpc_service(m);
684 lprocfs_obd_cleanup(obd);
688 static struct lu_device *mds_device_free(const struct lu_env *env,
691 struct mds_device *m = mds_dev(d);
694 md_device_fini(&m->mds_md_dev);
699 static struct lu_device *mds_device_alloc(const struct lu_env *env,
700 struct lu_device_type *t,
701 struct lustre_cfg *cfg)
703 struct mds_device *m;
704 struct obd_device *obd;
710 return ERR_PTR(-ENOMEM);
712 md_device_init(&m->mds_md_dev, t);
713 l = &m->mds_md_dev.md_lu_dev;
715 obd = class_name2obd(lustre_cfg_string(cfg, 0));
716 LASSERT(obd != NULL);
719 /* set this lu_device to obd, because error handling need it */
722 rc = lprocfs_obd_setup(obd, lprocfs_mds_obd_vars);
724 mds_device_free(env, l);
729 rc = mds_start_ptlrpc_service(m);
732 mds_device_free(env, l);
739 /* type constructor/destructor: mdt_type_init, mdt_type_fini */
740 LU_TYPE_INIT_FINI(mds, &mdt_thread_key);
742 static struct lu_device_type_operations mds_device_type_ops = {
743 .ldto_init = mds_type_init,
744 .ldto_fini = mds_type_fini,
746 .ldto_start = mds_type_start,
747 .ldto_stop = mds_type_stop,
749 .ldto_device_alloc = mds_device_alloc,
750 .ldto_device_free = mds_device_free,
751 .ldto_device_fini = mds_device_fini
754 static struct lu_device_type mds_device_type = {
755 .ldt_tags = LU_DEVICE_MD,
756 .ldt_name = LUSTRE_MDS_NAME,
757 .ldt_ops = &mds_device_type_ops,
758 .ldt_ctx_tags = LCT_MD_THREAD
761 static struct obd_ops mds_obd_device_ops = {
762 .o_owner = THIS_MODULE,
765 int mds_mod_init(void)
769 if (mdt_num_threads != 0 && mds_num_threads == 0) {
770 LCONSOLE_INFO("mdt_num_threads module parameter is deprecated, "
771 "use mds_num_threads instead or unset both for "
772 "dynamic thread startup\n");
773 mds_num_threads = mdt_num_threads;
776 rc = class_register_type(&mds_obd_device_ops, NULL,
777 lprocfs_mds_module_vars, LUSTRE_MDS_NAME,
782 void mds_mod_exit(void)
784 class_unregister_type(LUSTRE_MDS_NAME);