1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
6 * This file is part of Lustre, http://www.sf.net/projects/lustre/
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #define DEBUG_SUBSYSTEM S_MDC
26 #include <linux/module.h>
27 #include <linux/miscdevice.h>
28 #include <linux/lustre_mds.h>
29 #include <linux/lustre_lite.h>
30 #include <linux/lustre_dlm.h>
32 #define REQUEST_MINOR 244
34 extern int mds_queue_req(struct ptlrpc_request *);
37 int mdc_getstatus(struct lustre_handle *conn, struct ll_fid *rootfid,
38 __u64 *last_committed, __u64 *last_rcvd,
39 __u32 *last_xid, struct ptlrpc_request **request)
41 struct ptlrpc_request *req;
42 struct mds_body *body;
43 struct mdc_obd *mdc = mdc_conn2mdc(conn);
44 int rc, size = sizeof(*body);
47 req = ptlrpc_prep_req2(mdc->mdc_client, mdc->mdc_conn, &mdc->mdc_connh,
48 MDS_GETSTATUS, 1, &size, NULL);
50 GOTO(out, rc = -ENOMEM);
52 body = lustre_msg_buf(req->rq_reqmsg, 0);
53 req->rq_level = LUSTRE_CONN_CON;
54 req->rq_replen = lustre_msg_size(1, &size);
56 mds_pack_req_body(req);
57 rc = ptlrpc_queue_wait(req);
58 rc = ptlrpc_check_status(req, rc);
61 body = lustre_msg_buf(req->rq_repmsg, 0);
62 mds_unpack_body(body);
63 memcpy(rootfid, &body->fid1, sizeof(*rootfid));
64 *last_committed = req->rq_repmsg->last_committed;
65 *last_rcvd = req->rq_repmsg->last_rcvd;
66 *last_xid = body->last_xid;
68 CDEBUG(D_NET, "root ino=%ld, last_committed=%Lu, last_rcvd=%Lu,"
70 (unsigned long)rootfid->id,
71 (unsigned long long)*last_committed,
72 (unsigned long long)*last_rcvd,
83 int mdc_getattr(struct lustre_handle *conn,
84 ino_t ino, int type, unsigned long valid, size_t ea_size,
85 struct ptlrpc_request **request)
87 struct mdc_obd *mdc = mdc_conn2mdc(conn);
88 struct ptlrpc_request *req;
89 struct mds_body *body;
90 int rc, size[2] = {sizeof(*body), 0}, bufcount = 1;
93 req = ptlrpc_prep_req2(mdc->mdc_client, mdc->mdc_conn, &mdc->mdc_connh,
94 MDS_GETATTR, 1, size, NULL);
96 GOTO(out, rc = -ENOMEM);
98 body = lustre_msg_buf(req->rq_reqmsg, 0);
99 ll_ino2fid(&body->fid1, ino, 0, type);
104 size[1] = sizeof(struct obdo);
105 } else if (valid & OBD_MD_LINKNAME) {
109 req->rq_replen = lustre_msg_size(bufcount, size);
110 req->rq_level = LUSTRE_CONN_FULL;
112 rc = ptlrpc_queue_wait(req);
113 rc = ptlrpc_check_status(req, rc);
116 body = lustre_msg_buf(req->rq_repmsg, 0);
117 mds_unpack_body(body);
118 CDEBUG(D_NET, "mode: %o\n", body->mode);
127 static int mdc_lock_callback(struct lustre_handle *lockh, struct ldlm_lock_desc *desc,
128 void *data, int data_len,
129 struct ptlrpc_request **req)
132 struct inode *inode = data;
136 /* Completion AST. Do nothing. */
140 if (data_len != sizeof(*inode)) {
141 CERROR("data_len should be %d, but is %d\n", sizeof(*inode),
146 /* FIXME: do something better than throwing away everything */
149 if (S_ISDIR(inode->i_mode)) {
150 CDEBUG(D_INODE, "invalidating inode %ld\n", inode->i_ino);
151 invalidate_inode_pages(inode);
154 rc = ldlm_cli_cancel(lockh, NULL);
156 CERROR("ldlm_cli_cancel: %d\n", rc);
162 int mdc_enqueue(struct lustre_handle *conn, int lock_type, struct lookup_intent *it,
163 int lock_mode, struct inode *dir, struct dentry *de,
164 struct lustre_handle *lockh, __u64 id, char *tgt, int tgtlen,
165 void *data, int datalen)
167 struct ptlrpc_request *req;
168 struct obd_device *obddev = class_conn2obd(conn);
169 struct mdc_obd *mdc = mdc_conn2mdc(conn);
170 __u64 res_id[RES_NAME_SIZE] = {dir->i_ino};
171 int size[5] = {sizeof(struct ldlm_request), sizeof(struct ldlm_intent)};
173 struct ldlm_reply *dlm_rep;
174 struct ldlm_intent *lit;
177 #warning FIXME: Andreas, the sgid directory stuff also goes here, but check again on mds
179 LDLM_DEBUG_NOLOCK("mdsintent %d dir %ld", it->it_op, dir->i_ino);
183 it->it_mode = (it->it_mode | S_IFDIR) & ~current->fs->umask;
186 it->it_op = IT_GETATTR;
188 case (IT_CREAT|IT_OPEN):
191 it->it_mode = (it->it_mode | S_IFREG) & ~current->fs->umask;
194 it->it_mode = (it->it_mode | S_IFLNK) & ~current->fs->umask;
198 if (it->it_op & (IT_MKDIR | IT_CREAT | IT_SYMLINK | IT_MKNOD)) {
199 size[2] = sizeof(struct mds_rec_create);
200 size[3] = de->d_name.len + 1;
201 size[4] = tgtlen + 1;
202 req = ptlrpc_prep_req2(mdc->mdc_ldlm_client, mdc->mdc_conn,
204 LDLM_ENQUEUE, 5, size, NULL);
208 /* pack the intent */
209 lit = lustre_msg_buf(req->rq_reqmsg, 1);
210 lit->opc = NTOH__u64((__u64)it->it_op);
212 /* pack the intended request */
213 mds_create_pack(req, 2, dir, it->it_mode, id, current->fsuid,
214 current->fsgid, CURRENT_TIME, de->d_name.name,
215 de->d_name.len, tgt, tgtlen);
217 size[0] = sizeof(struct ldlm_reply);
218 size[1] = sizeof(struct mds_body);
219 size[2] = sizeof(struct obdo);
220 req->rq_replen = lustre_msg_size(3, size);
221 } else if ( it->it_op == IT_RENAME2 ) {
222 struct dentry *old_de = it->it_data;
224 size[2] = sizeof(struct mds_rec_rename);
225 size[3] = old_de->d_name.len + 1;
226 size[4] = de->d_name.len + 1;
227 req = ptlrpc_prep_req2(mdc->mdc_ldlm_client, mdc->mdc_conn,
228 &mdc->mdc_connh, LDLM_ENQUEUE, 5, size, NULL);
232 /* pack the intent */
233 lit = lustre_msg_buf(req->rq_reqmsg, 1);
234 lit->opc = NTOH__u64((__u64)it->it_op);
236 /* pack the intended request */
237 mds_rename_pack(req, 2, old_de->d_inode, dir,
238 old_de->d_parent->d_name.name,
239 old_de->d_parent->d_name.len,
240 de->d_name.name, de->d_name.len);
242 size[0] = sizeof(struct ldlm_reply);
243 size[1] = sizeof(struct mds_body);
244 req->rq_replen = lustre_msg_size(2, size);
245 } else if ( it->it_op == IT_UNLINK ) {
246 size[2] = sizeof(struct mds_rec_unlink);
247 size[3] = de->d_name.len + 1;
248 req = ptlrpc_prep_req2(mdc->mdc_ldlm_client, mdc->mdc_conn,
249 &mdc->mdc_connh, LDLM_ENQUEUE, 4, size, NULL);
253 /* pack the intent */
254 lit = lustre_msg_buf(req->rq_reqmsg, 1);
255 lit->opc = NTOH__u64((__u64)it->it_op);
257 /* pack the intended request */
258 mds_unlink_pack(req, 2, dir, NULL, de->d_name.name,
260 size[0] = sizeof(struct ldlm_reply);
261 size[1] = sizeof(struct obdo);
262 req->rq_replen = lustre_msg_size(2, size);
263 } else if ( it->it_op == IT_RMDIR ) {
264 size[2] = sizeof(struct mds_rec_unlink);
265 size[3] = de->d_name.len + 1;
266 req = ptlrpc_prep_req2(mdc->mdc_ldlm_client, mdc->mdc_conn,
267 &mdc->mdc_connh, LDLM_ENQUEUE, 4, size, NULL);
271 /* pack the intent */
272 lit = lustre_msg_buf(req->rq_reqmsg, 1);
273 lit->opc = NTOH__u64((__u64)it->it_op);
275 /* pack the intended request */
276 mds_unlink_pack(req, 2, dir, NULL, de->d_name.name,
278 size[0] = sizeof(struct ldlm_reply);
279 req->rq_replen = lustre_msg_size(1, size);
280 } else if ( it->it_op == IT_GETATTR || it->it_op == IT_RENAME ||
281 it->it_op == IT_OPEN ) {
282 size[2] = sizeof(struct mds_body);
283 size[3] = de->d_name.len + 1;
285 req = ptlrpc_prep_req2(mdc->mdc_ldlm_client, mdc->mdc_conn,
286 &mdc->mdc_connh, LDLM_ENQUEUE, 4, size, NULL);
290 /* pack the intent */
291 lit = lustre_msg_buf(req->rq_reqmsg, 1);
292 lit->opc = NTOH__u64((__u64)it->it_op);
294 /* pack the intended request */
295 mds_getattr_pack(req, 2, dir, de->d_name.name, de->d_name.len);
297 /* get ready for the reply */
298 size[0] = sizeof(struct ldlm_reply);
299 size[1] = sizeof(struct mds_body);
300 size[2] = sizeof(struct obdo);
301 req->rq_replen = lustre_msg_size(3, size);
302 } else if ( it->it_op == IT_SETATTR) {
303 size[2] = sizeof(struct mds_rec_setattr);
304 size[3] = de->d_name.len + 1;
305 req = ptlrpc_prep_req2(mdc->mdc_ldlm_client, mdc->mdc_conn,
306 &mdc->mdc_connh, LDLM_ENQUEUE, 5, size, NULL);
310 lit = lustre_msg_buf(req->rq_reqmsg, 1);
311 lit->opc = NTOH__u64((__u64)it->it_op);
316 mds_setattr_pack(req, 2, dir, it->it_iattr,
317 de->d_name.name, de->d_name.len);
318 size[0] = sizeof(struct ldlm_reply);
319 size[1] = sizeof(struct mds_body);
320 req->rq_replen = lustre_msg_size(2, size);
321 } else if ( it->it_op == IT_READDIR ) {
322 req = ptlrpc_prep_req2(mdc->mdc_ldlm_client, mdc->mdc_conn,
323 &mdc->mdc_connh, LDLM_ENQUEUE, 1, size, NULL);
327 /* get ready for the reply */
328 size[0] = sizeof(struct ldlm_reply);
329 req->rq_replen = lustre_msg_size(1, size);
334 #warning FIXME: the data here needs to be different if a lock was granted for a different inode
335 rc = ldlm_cli_enqueue(mdc->mdc_ldlm_client, mdc->mdc_conn,
337 obddev->obd_namespace, NULL, res_id, lock_type,
338 NULL, 0, lock_mode, &flags,
339 (void *)mdc_lock_callback, data, datalen, lockh);
340 if (rc == -ENOENT || rc == ELDLM_LOCK_ABORTED) {
342 memset(lockh, 0, sizeof(*lockh));
343 } else if (rc != 0) {
344 CERROR("ldlm_cli_enqueue: %d\n", rc);
348 dlm_rep = lustre_msg_buf(req->rq_repmsg, 0);
349 it->it_disposition = (int) dlm_rep->lock_policy_res1;
350 it->it_status = (int) dlm_rep->lock_policy_res2;
351 it->it_lock_mode = lock_mode;
357 int mdc_open(struct lustre_handle *conn, ino_t ino, int type, int flags,
359 __u64 cookie, __u64 *fh, struct ptlrpc_request **request)
361 struct mdc_obd *mdc = mdc_conn2mdc(conn);
362 struct mds_body *body;
363 int rc, size[2] = {sizeof(*body)}, bufcount = 1;
364 struct ptlrpc_request *req;
369 size[1] = sizeof(*obdo);
372 req = ptlrpc_prep_req2(mdc->mdc_client, mdc->mdc_conn, &mdc->mdc_connh,
373 MDS_OPEN, bufcount, size, NULL);
375 GOTO(out, rc = -ENOMEM);
377 req->rq_flags |= PTL_RPC_FL_REPLAY;
378 req->rq_level = LUSTRE_CONN_FULL;
379 body = lustre_msg_buf(req->rq_reqmsg, 0);
381 ll_ino2fid(&body->fid1, ino, 0, type);
382 body->flags = HTON__u32(flags);
383 body->extra = cookie;
386 memcpy(lustre_msg_buf(req->rq_reqmsg, 1), obdo, sizeof(*obdo));
388 req->rq_replen = lustre_msg_size(1, size);
390 rc = ptlrpc_queue_wait(req);
391 rc = ptlrpc_check_status(req, rc);
394 body = lustre_msg_buf(req->rq_repmsg, 0);
395 mds_unpack_body(body);
405 int mdc_close(struct lustre_handle *conn,
406 ino_t ino, int type, __u64 fh, struct ptlrpc_request **request)
408 struct mdc_obd *mdc = mdc_conn2mdc(conn);
409 struct mds_body *body;
410 int rc, size = sizeof(*body);
411 struct ptlrpc_request *req;
413 req = ptlrpc_prep_req2(mdc->mdc_client, mdc->mdc_conn, &mdc->mdc_connh,
414 MDS_CLOSE, 1, &size, NULL);
416 GOTO(out, rc = -ENOMEM);
418 body = lustre_msg_buf(req->rq_reqmsg, 0);
419 ll_ino2fid(&body->fid1, ino, 0, type);
422 req->rq_level = LUSTRE_CONN_FULL;
423 req->rq_replen = lustre_msg_size(0, NULL);
425 rc = ptlrpc_queue_wait(req);
426 rc = ptlrpc_check_status(req, rc);
434 int mdc_readpage(struct lustre_handle *conn, ino_t ino, int type, __u64 offset,
435 char *addr, struct ptlrpc_request **request)
437 struct mdc_obd *mdc = mdc_conn2mdc(conn);
438 struct ptlrpc_request *req = NULL;
439 struct ptlrpc_bulk_desc *desc = NULL;
440 struct ptlrpc_bulk_page *bulk = NULL;
441 struct mds_body *body;
442 int rc, size = sizeof(*body);
445 CDEBUG(D_INODE, "inode: %ld\n", (long)ino);
447 desc = ptlrpc_prep_bulk(mdc->mdc_conn);
449 GOTO(out, rc = -ENOMEM);
451 req = ptlrpc_prep_req2(mdc->mdc_client, mdc->mdc_conn, &mdc->mdc_connh,
452 MDS_READPAGE, 1, &size, NULL);
454 GOTO(out2, rc = -ENOMEM);
456 bulk = ptlrpc_prep_bulk_page(desc);
457 bulk->b_buflen = PAGE_SIZE;
459 bulk->b_xid = req->rq_xid;
460 desc->b_portal = MDS_BULK_PORTAL;
462 rc = ptlrpc_register_bulk(desc);
464 CERROR("couldn't setup bulk sink: error %d.\n", rc);
468 body = lustre_msg_buf(req->rq_reqmsg, 0);
470 body->fid1.f_type = type;
473 req->rq_replen = lustre_msg_size(1, &size);
474 req->rq_level = LUSTRE_CONN_FULL;
475 rc = ptlrpc_queue_wait(req);
476 rc = ptlrpc_check_status(req, rc);
478 ptlrpc_abort_bulk(desc);
481 body = lustre_msg_buf(req->rq_repmsg, 0);
482 mds_unpack_body(body);
487 ptlrpc_free_bulk(desc);
493 int mdc_statfs(struct lustre_handle *conn, struct statfs *sfs,
494 struct ptlrpc_request **request)
496 struct mdc_obd *mdc = mdc_conn2mdc(conn);
497 struct obd_statfs *osfs;
498 struct ptlrpc_request *req;
499 int rc, size = sizeof(*osfs);
502 req = ptlrpc_prep_req2(mdc->mdc_client, mdc->mdc_conn, &mdc->mdc_connh,
503 MDS_STATFS, 0, NULL, NULL);
505 GOTO(out, rc = -ENOMEM);
506 req->rq_replen = lustre_msg_size(1, &size);
507 req->rq_level = LUSTRE_CONN_FULL;
509 rc = ptlrpc_queue_wait(req);
510 rc = ptlrpc_check_status(req, rc);
515 osfs = lustre_msg_buf(req->rq_repmsg, 0);
516 obd_statfs_unpack(osfs, sfs);
525 static int mdc_ioctl(long cmd, struct lustre_handle *conn, int len, void *karg,
529 /* FIXME XXX : This should use the new ioc_data to pass args in */
531 struct ptlrpc_client cl;
532 struct ptlrpc_connection *conn;
533 struct ptlrpc_request *request;
537 if (_IOC_TYPE(cmd) != IOC_REQUEST_TYPE ||
538 _IOC_NR(cmd) < IOC_REQUEST_MIN_NR ||
539 _IOC_NR(cmd) > IOC_REQUEST_MAX_NR ) {
540 CDEBUG(D_IOCTL, "invalid ioctl ( type %d, nr %d, size %d )\n",
541 _IOC_TYPE(cmd), _IOC_NR(cmd), _IOC_SIZE(cmd));
545 ptlrpc_init_client(NULL, NULL,
546 MDS_REQUEST_PORTAL, MDC_REPLY_PORTAL, &cl);
547 connection = ptlrpc_uuid_to_connection("mds");
549 CERROR("cannot create client\n");
554 case IOC_REQUEST_GETATTR: {
555 CERROR("-- getting attr for ino %lu\n", arg);
556 err = mdc_getattr(&cl, connection, arg, S_IFDIR, ~0, 0,
558 CERROR("-- done err %d\n", err);
563 case IOC_REQUEST_READPAGE: {
565 OBD_ALLOC(buf, PAGE_SIZE);
570 CERROR("-- readpage 0 for ino %lu\n", arg);
571 err = mdc_readpage(&cl, connection, arg, S_IFDIR, 0, buf,
573 CERROR("-- done err %d\n", err);
574 OBD_FREE(buf, PAGE_SIZE);
579 case IOC_REQUEST_SETATTR: {
584 inode.i_generation = 0;
585 iattr.ia_mode = 040777;
587 iattr.ia_valid = ATTR_MODE | ATTR_ATIME;
589 err = mdc_setattr(&cl, connection, &inode, &iattr, &request);
590 CERROR("-- done err %d\n", err);
595 case IOC_REQUEST_CREATE: {
600 inode.i_generation = 0;
601 iattr.ia_mode = 040777;
603 iattr.ia_valid = ATTR_MODE | ATTR_ATIME;
605 err = mdc_create(&cl, connection, &inode,
606 "foofile", strlen("foofile"),
607 NULL, 0, 0100707, 47114711,
608 11, 47, 0, NULL, &request);
609 CERROR("-- done err %d\n", err);
614 case IOC_REQUEST_OPEN: {
616 copy_from_user(&ino, (__u64 *)arg, sizeof(ino));
617 CERROR("-- opening ino %llu\n", (unsigned long long)ino);
618 err = mdc_open(&cl, connection, ino, S_IFDIR, O_RDONLY, 4711,
620 copy_to_user((__u64 *)arg, &fh, sizeof(fh));
621 CERROR("-- done err %d (fh=%Lu)\n", err,
622 (unsigned long long)fh);
627 case IOC_REQUEST_CLOSE: {
628 CERROR("-- closing ino 2, filehandle %lu\n", arg);
629 err = mdc_close(&cl, connection, 2, S_IFDIR, arg, &request);
630 CERROR("-- done err %d\n", err);
636 GOTO(out, err = -EINVAL);
640 ptlrpc_free_req(request);
641 ptlrpc_put_connection(connection);
642 ptlrpc_cleanup_client(&cl);
649 static int mdc_setup(struct obd_device *obddev, obd_count len, void *buf)
651 struct obd_ioctl_data* data = buf;
652 struct mdc_obd *mdc = &obddev->u.mdc;
653 char server_uuid[37];
657 if (data->ioc_inllen1 < 1) {
658 CERROR("osc setup requires a TARGET UUID\n");
662 if (data->ioc_inllen1 > 37) {
663 CERROR("mdc UUID must be less than 38 characters\n");
667 if (data->ioc_inllen2 < 1) {
668 CERROR("mdc setup requires a SERVER UUID\n");
672 if (data->ioc_inllen2 > 37) {
673 CERROR("mdc UUID must be less than 38 characters\n");
677 memcpy(mdc->mdc_target_uuid, data->ioc_inlbuf1, data->ioc_inllen1);
678 memcpy(server_uuid, data->ioc_inlbuf2, MIN(data->ioc_inllen2,
679 sizeof(server_uuid)));
681 mdc->mdc_conn = ptlrpc_uuid_to_connection(server_uuid);
685 OBD_ALLOC(mdc->mdc_client, sizeof(*mdc->mdc_client));
686 if (mdc->mdc_client == NULL)
687 GOTO(out_conn, rc = -ENOMEM);
689 OBD_ALLOC(mdc->mdc_ldlm_client, sizeof(*mdc->mdc_ldlm_client));
690 if (mdc->mdc_ldlm_client == NULL)
691 GOTO(out_client, rc = -ENOMEM);
693 ptlrpc_init_client(NULL, NULL, MDS_REQUEST_PORTAL, MDC_REPLY_PORTAL,
695 ptlrpc_init_client(NULL, NULL, LDLM_REQUEST_PORTAL, LDLM_REPLY_PORTAL,
696 mdc->mdc_ldlm_client);
697 mdc->mdc_client->cli_name = "mdc";
698 mdc->mdc_ldlm_client->cli_name = "ldlm";
699 /* XXX get recovery hooked in here again */
700 //ptlrpc_init_client(ptlrpc_connmgr, ll_recover,...
702 ptlrpc_init_client(ptlrpc_connmgr, NULL,
703 MDS_REQUEST_PORTAL, MDC_REPLY_PORTAL,
710 OBD_FREE(mdc->mdc_client, sizeof(*mdc->mdc_client));
712 ptlrpc_put_connection(mdc->mdc_conn);
716 static int mdc_cleanup(struct obd_device * obddev)
718 struct mdc_obd *mdc = &obddev->u.mdc;
720 ptlrpc_cleanup_client(mdc->mdc_client);
721 OBD_FREE(mdc->mdc_client, sizeof(*mdc->mdc_client));
722 ptlrpc_cleanup_client(mdc->mdc_ldlm_client);
723 OBD_FREE(mdc->mdc_ldlm_client, sizeof(*mdc->mdc_ldlm_client));
724 ptlrpc_put_connection(mdc->mdc_conn);
730 static int mdc_connect(struct lustre_handle *conn, struct obd_device *obd)
732 struct mdc_obd *mdc = &obd->u.mdc;
733 struct ptlrpc_request *request;
734 int rc, size = sizeof(mdc->mdc_target_uuid);
735 char *tmp = mdc->mdc_target_uuid;
740 ldlm_namespace_new("mdc", LDLM_NAMESPACE_CLIENT);
741 if (obd->obd_namespace == NULL)
745 rc = class_connect(conn, obd);
749 request = ptlrpc_prep_req(mdc->mdc_client, mdc->mdc_conn,
750 MDS_CONNECT, 1, &size, &tmp);
752 GOTO(out_disco, -ENOMEM);
754 request->rq_replen = lustre_msg_size(0, NULL);
756 rc = ptlrpc_queue_wait(request);
757 rc = ptlrpc_check_status(request, rc);
761 mdc->mdc_connh.addr = request->rq_repmsg->addr;
762 mdc->mdc_connh.cookie = request->rq_repmsg->cookie;
767 ptlrpc_free_req(request);
769 class_disconnect(conn);
775 static int mdc_disconnect(struct lustre_handle *conn)
777 struct mdc_obd *mdc = mdc_conn2mdc(conn);
778 struct obd_device *obd = class_conn2obd(conn);
779 struct ptlrpc_request *request;
783 ldlm_namespace_free(obd->obd_namespace);
784 request = ptlrpc_prep_req2(mdc->mdc_client, mdc->mdc_conn,
785 &mdc->mdc_connh, MDS_DISCONNECT, 0, NULL, NULL);
789 request->rq_replen = lustre_msg_size(0, NULL);
791 rc = ptlrpc_queue_wait(request);
794 rc = class_disconnect(conn);
798 ptlrpc_free_req(request);
802 struct obd_ops mdc_obd_ops = {
804 o_cleanup: mdc_cleanup,
805 o_connect: mdc_connect,
806 o_disconnect: mdc_disconnect,
807 o_iocontrol: mdc_ioctl
810 static int __init ptlrpc_request_init(void)
812 return class_register_type(&mdc_obd_ops, LUSTRE_MDC_NAME);
815 static void __exit ptlrpc_request_exit(void)
817 class_unregister_type(LUSTRE_MDC_NAME);
820 MODULE_AUTHOR("Cluster File Systems <info@clusterfs.com>");
821 MODULE_DESCRIPTION("Lustre Metadata Client v1.0");
822 MODULE_LICENSE("GPL");
824 EXPORT_SYMBOL(mdc_getstatus);
825 EXPORT_SYMBOL(mdc_enqueue);
826 EXPORT_SYMBOL(mdc_getattr);
827 EXPORT_SYMBOL(mdc_statfs);
828 EXPORT_SYMBOL(mdc_create);
829 EXPORT_SYMBOL(mdc_unlink);
830 EXPORT_SYMBOL(mdc_rename);
831 EXPORT_SYMBOL(mdc_link);
832 EXPORT_SYMBOL(mdc_readpage);
833 EXPORT_SYMBOL(mdc_setattr);
834 EXPORT_SYMBOL(mdc_close);
835 EXPORT_SYMBOL(mdc_open);
837 module_init(ptlrpc_request_init);
838 module_exit(ptlrpc_request_exit);