1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2001-2004 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.
23 # define EXPORT_SYMTAB
25 #define DEBUG_SUBSYSTEM S_MDC
28 # include <linux/module.h>
29 # include <linux/pagemap.h>
30 # include <linux/miscdevice.h>
31 # include <linux/init.h>
33 # include <liblustre.h>
36 #include <linux/obd_class.h>
37 #include <linux/lustre_mds.h>
38 #include <linux/lustre_dlm.h>
39 #include <linux/lustre_sec.h>
40 #include <linux/lprocfs_status.h>
41 #include <linux/lustre_acl.h>
42 #include "mdc_internal.h"
44 #define REQUEST_MINOR 244
46 static int mdc_cleanup(struct obd_device *obd, int flags);
48 extern int mds_queue_req(struct ptlrpc_request *);
49 /* Helper that implements most of mdc_getstatus and signal_completed_replay. */
50 /* XXX this should become mdc_get_info("key"), sending MDS_GET_INFO RPC */
51 static int send_getstatus(struct obd_import *imp, struct lustre_id *rootid,
52 int level, int msg_flags)
54 struct ptlrpc_request *req;
55 struct mds_body *body;
56 int rc, size[2] = {0, sizeof(*body)};
59 //size[0] = lustre_secdesc_size();
61 req = ptlrpc_prep_req(imp, LUSTRE_MDS_VERSION, MDS_GETSTATUS,
64 GOTO(out, rc = -ENOMEM);
66 //lustre_pack_secdesc(req, size[0]);
68 body = lustre_msg_buf(req->rq_reqmsg, MDS_REQ_REC_OFF, sizeof (*body));
69 req->rq_send_state = level;
70 req->rq_replen = lustre_msg_size(1, &size[1]);
72 req->rq_reqmsg->flags |= msg_flags;
73 rc = ptlrpc_queue_wait(req);
76 body = lustre_swab_repbuf (req, 0, sizeof (*body),
77 lustre_swab_mds_body);
79 CERROR ("Can't extract mds_body\n");
80 GOTO (out, rc = -EPROTO);
83 memcpy(rootid, &body->id1, sizeof(*rootid));
85 CDEBUG(D_NET, "root ino="LPU64", last_committed="LPU64
86 ", last_xid="LPU64"\n", rootid->li_stc.u.e3s.l3s_ino,
87 req->rq_repmsg->last_committed, req->rq_repmsg->last_xid);
92 ptlrpc_req_finished(req);
96 /* This should be mdc_get_info("rootid") */
97 int mdc_getstatus(struct obd_export *exp, struct lustre_id *rootid)
99 return send_getstatus(class_exp2cliimp(exp), rootid,
103 int mdc_getattr_common(struct obd_export *exp, unsigned int ea_size,
104 struct ptlrpc_request *req)
106 struct mds_body *body, *reqbody;
109 int repsize[4] = {sizeof(*body)};
113 /* request message already built */
116 repsize[bufcount++] = ea_size;
117 CDEBUG(D_INODE, "reserved %u bytes for MD/symlink in packet\n",
121 reqbody = lustre_msg_buf(req->rq_reqmsg, 1, sizeof(*reqbody));
123 if (reqbody->valid & OBD_MD_FLACL_ACCESS) {
124 repsize[bufcount++] = 4;
125 repsize[bufcount++] = xattr_acl_size(LL_ACL_MAX_ENTRIES);
128 req->rq_replen = lustre_msg_size(bufcount, repsize);
130 mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
131 rc = ptlrpc_queue_wait(req);
132 mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
136 body = lustre_swab_repbuf (req, 0, sizeof (*body),
137 lustre_swab_mds_body);
139 CERROR ("Can't unpack mds_body\n");
143 CDEBUG(D_NET, "mode: %o\n", body->mode);
145 LASSERT_REPSWAB (req, 1);
147 /* Skip the check if getxattr/listxattr are called with no buffers */
148 if ((reqbody->valid & (OBD_MD_FLEA | OBD_MD_FLEALIST)) &&
149 (reqbody->eadatasize != 0)){
150 if (body->eadatasize != 0) {
151 /* reply indicates presence of eadata; check it's there... */
152 eadata = lustre_msg_buf (req->rq_repmsg, 1,
154 if (eadata == NULL) {
155 CERROR ("Missing/short eadata\n");
164 static int mdc_cancel_unused(struct obd_export *exp,
165 struct lov_stripe_md *lsm,
166 int flags, void *opaque)
168 struct obd_device *obd = class_exp2obd(exp);
171 RETURN(ldlm_cli_cancel_unused(obd->obd_namespace,
172 NULL, flags, opaque));
175 int mdc_getattr(struct obd_export *exp, struct lustre_id *id,
176 __u64 valid, const char *ea_name, int ea_namelen,
177 unsigned int ea_size, struct ptlrpc_request **request)
179 struct ptlrpc_request *req;
180 struct mds_body *body;
182 int size[3] = {0, sizeof(*body)};
186 /* XXX do we need to make another request here? We just did a getattr
187 * to do the lookup in the first place.
189 size[0] = lustre_secdesc_size();
191 LASSERT((ea_name != NULL) == (ea_namelen != 0));
192 if (valid & (OBD_MD_FLEA | OBD_MD_FLEALIST)) {
193 size[bufcount] = ea_namelen;
197 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
198 MDS_GETATTR, bufcount, size, NULL);
200 GOTO(out, rc = -ENOMEM);
202 lustre_pack_secdesc(req, size[0]);
204 body = lustre_msg_buf(req->rq_reqmsg, MDS_REQ_REC_OFF, sizeof (*body));
205 memcpy(&body->id1, id, sizeof(*id));
207 body->eadatasize = ea_size;
210 if (valid & OBD_MD_FLEA) {
211 LASSERT(strnlen(ea_name, ea_namelen) == (ea_namelen - 1));
212 memcpy(lustre_msg_buf(req->rq_reqmsg, 2, ea_namelen),
213 ea_name, ea_namelen);
216 rc = mdc_getattr_common(exp, ea_size, req);
218 ptlrpc_req_finished (req);
226 int mdc_access_check(struct obd_export *exp, struct lustre_id *id,
227 struct ptlrpc_request **request)
230 struct ptlrpc_request *req;
231 struct mds_body *body;
232 int size[2] = {0, sizeof(*body)};
236 size[0] = lustre_secdesc_size();
237 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
238 MDS_ACCESS_CHECK, 2, size, NULL);
240 GOTO(out, rc = -ENOMEM);
242 lustre_pack_secdesc(req, size[0]);
243 body = lustre_msg_buf(req->rq_reqmsg, MDS_REQ_REC_OFF, sizeof (*body));
244 memcpy(&body->id1, id, sizeof(*id));
246 req->rq_replen = lustre_msg_size(2, size);
247 mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
248 rc = ptlrpc_queue_wait(req);
249 mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
251 ptlrpc_req_finished (req);
254 body = lustre_swab_repbuf (req, 0, sizeof (*body),
255 lustre_swab_mds_body);
257 CERROR ("Can't unpack mds_body\n");
267 int mdc_getattr_lock(struct obd_export *exp, struct lustre_id *id,
268 char *filename, int namelen, __u64 valid,
269 unsigned int ea_size, struct ptlrpc_request **request)
271 struct ptlrpc_request *req;
272 struct mds_body *body;
273 int rc, size[3] = {0, sizeof(*body), namelen};
276 size[0] = lustre_secdesc_size();
278 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
279 MDS_GETATTR_LOCK, 3, size, NULL);
281 GOTO(out, rc = -ENOMEM);
283 lustre_pack_secdesc(req, size[0]);
285 body = lustre_msg_buf(req->rq_reqmsg, MDS_REQ_REC_OFF, sizeof (*body));
286 memcpy(&body->id1, id, sizeof(*id));
288 body->eadatasize = ea_size;
290 if (filename != NULL) {
291 LASSERT (strnlen (filename, namelen) == namelen - 1);
292 memcpy(lustre_msg_buf(req->rq_reqmsg, 2, namelen),
295 LASSERT(namelen == 1);
298 rc = mdc_getattr_common(exp, ea_size, req);
300 ptlrpc_req_finished (req);
308 /* This should be called with both the request and the reply still packed. */
309 int mdc_store_inode_generation(struct obd_export *exp,
310 struct ptlrpc_request *req,
311 int reqoff, int repoff)
313 struct mds_rec_create *rec =
314 lustre_msg_buf(req->rq_reqmsg, reqoff, sizeof(*rec));
315 struct mds_body *body =
316 lustre_msg_buf(req->rq_repmsg, repoff, sizeof(*body));
318 LASSERT (rec != NULL);
319 LASSERT (body != NULL);
321 memcpy(&rec->cr_replayid, &body->id1, sizeof(rec->cr_replayid));
322 DEBUG_REQ(D_HA, req, "storing generation for ino "DLID4,
323 OLID4(&rec->cr_replayid));
327 int mdc_req2lustre_md(struct obd_export *exp_lmv, struct ptlrpc_request *req,
328 unsigned int offset, struct obd_export *exp_lov,
329 struct lustre_md *md)
331 struct lov_mds_md *lmm;
332 struct posix_acl *acl;
333 struct mds_remote_perm *perm;
340 memset(md, 0, sizeof(*md));
342 md->body = lustre_msg_buf(req->rq_repmsg, offset,
347 LASSERT_REPSWABBED(req, offset);
349 if (!(md->body->valid & OBD_MD_FLEASIZE) &&
350 !(md->body->valid & OBD_MD_FLDIREA))
353 if (S_ISREG(md->body->mode)) {
354 if (md->body->eadatasize == 0) {
355 CERROR("invalid EA size (0) is detected\n");
359 lmm = lustre_msg_buf(req->rq_repmsg, offset + 1,
360 md->body->eadatasize);
364 LASSERT(exp_lov != NULL);
366 rc = obd_unpackmd(exp_lov, &md->lsm, lmm,
367 md->body->eadatasize);
369 LASSERT(rc >= sizeof(*md->lsm));
372 } else if (S_ISDIR(md->body->mode)) {
373 /* dir can be non-splitted */
374 if (md->body->eadatasize == 0)
377 lmm = lustre_msg_buf(req->rq_repmsg, offset + 1,
378 md->body->eadatasize);
382 if (md->body->valid & OBD_MD_MEA) {
383 LASSERT(exp_lmv != NULL);
385 rc = obd_unpackmd(exp_lmv, (void *)&md->mea,
386 lmm, md->body->eadatasize);
388 LASSERT(rc >= sizeof(*md->mea));
393 LASSERT(S_ISCHR(md->body->mode) ||
394 S_ISBLK(md->body->mode) ||
395 S_ISFIFO(md->body->mode)||
396 S_ISLNK(md->body->mode) ||
397 S_ISSOCK(md->body->mode));
400 /* if anything wrong when unpacking md, we don't check acl
401 * stuff, for simplicity
406 if (md->body->valid & OBD_MD_FLACL_ACCESS) {
407 acl_off = (md->body->valid & OBD_MD_FLEASIZE) ?
408 (offset + 2) : (offset + 1);
410 if (md->body->valid & OBD_MD_RACL) {
412 buf = lustre_swab_repbuf(req, acl_off, sizeof(*perm),
413 lustre_swab_remote_perm);
415 CERROR("Can't unpack remote perm\n");
419 OBD_ALLOC(perm, sizeof(*perm));
422 memcpy(perm, buf, sizeof(*perm));
424 md->remote_perm = perm;
426 size = le32_to_cpu(*(__u32 *) lustre_msg_buf(
427 req->rq_repmsg, acl_off, 4));
428 buf = lustre_msg_buf(req->rq_repmsg, acl_off + 1, size);
430 acl = posix_acl_from_xattr(buf, size);
433 CERROR("convert xattr to acl failed: %d\n", rc);
436 rc = posix_acl_valid(acl);
438 CERROR("acl valid error: %d\n", rc);
439 posix_acl_release(acl);
451 static void mdc_commit_open(struct ptlrpc_request *req)
453 struct mdc_open_data *mod = req->rq_cb_data;
457 if (mod->mod_close_req != NULL)
458 mod->mod_close_req->rq_cb_data = NULL;
460 if (mod->mod_och != NULL)
461 mod->mod_och->och_mod = NULL;
463 OBD_FREE(mod, sizeof(*mod));
464 req->rq_cb_data = NULL;
465 LASSERT(atomic_read(&req->rq_refcount) > 1);
466 ptlrpc_req_finished(req);
469 static void mdc_replay_open(struct ptlrpc_request *req)
471 struct mdc_open_data *mod = req->rq_cb_data;
472 struct obd_client_handle *och;
473 struct ptlrpc_request *close_req;
474 struct lustre_handle old;
475 struct mds_body *body;
478 body = lustre_swab_repbuf(req, 1, sizeof(*body), lustre_swab_mds_body);
479 LASSERT (body != NULL);
482 DEBUG_REQ(D_ERROR, req,
483 "can't properly replay without open data");
490 struct lustre_handle *file_fh;
491 LASSERT(och->och_magic == OBD_CLIENT_HANDLE_MAGIC);
492 file_fh = &och->och_fh;
493 CDEBUG(D_HA, "updating handle from "LPX64" to "LPX64"\n",
494 file_fh->cookie, body->handle.cookie);
495 memcpy(&old, file_fh, sizeof(old));
496 memcpy(file_fh, &body->handle, sizeof(*file_fh));
499 close_req = mod->mod_close_req;
500 if (close_req != NULL) {
501 struct mds_body *close_body;
502 LASSERT(close_req->rq_reqmsg->opc == MDS_CLOSE);
503 close_body = lustre_msg_buf(close_req->rq_reqmsg,
505 sizeof(*close_body));
507 LASSERT(!memcmp(&old, &close_body->handle, sizeof old));
508 DEBUG_REQ(D_HA, close_req, "updating close body with new fh");
509 memcpy(&close_body->handle, &body->handle,
510 sizeof(close_body->handle));
516 int mdc_set_open_replay_data(struct obd_export *exp,
517 struct obd_client_handle *och,
518 struct ptlrpc_request *open_req)
520 struct mdc_open_data *mod;
521 struct mds_rec_create *rec;
522 struct mds_body *body;
524 rec = lustre_msg_buf(open_req->rq_reqmsg, MDS_REQ_INTENT_REC_OFF,
526 body = lustre_msg_buf(open_req->rq_repmsg, 1, sizeof(*body));
528 LASSERT(rec != NULL);
529 /* outgoing messages always in my byte order */
530 LASSERT(body != NULL);
531 /* incoming message in my byte order (it's been swabbed) */
532 LASSERT_REPSWABBED(open_req, 1);
534 OBD_ALLOC(mod, sizeof(*mod));
536 DEBUG_REQ(D_ERROR, open_req, "can't allocate mdc_open_data");
542 mod->mod_open_req = ptlrpc_request_addref(open_req);
544 memcpy(&rec->cr_replayid, &body->id1, sizeof rec->cr_replayid);
545 open_req->rq_replay_cb = mdc_replay_open;
546 open_req->rq_commit_cb = mdc_commit_open;
547 open_req->rq_cb_data = mod;
548 DEBUG_REQ(D_HA, open_req, "set up replay data");
552 int mdc_clear_open_replay_data(struct obd_export *exp,
553 struct obd_client_handle *och)
555 struct mdc_open_data *mod = och->och_mod;
557 /* Don't free the structure now (it happens in mdc_commit_open, after
558 * we're sure we won't need to fix up the close request in the future),
559 * but make sure that replay doesn't poke at the och, which is about to
561 LASSERT(mod != LP_POISON);
568 static void mdc_commit_close(struct ptlrpc_request *req)
570 struct mdc_open_data *mod = req->rq_cb_data;
571 struct ptlrpc_request *open_req;
572 struct obd_import *imp = req->rq_import;
574 DEBUG_REQ(D_HA, req, "close req committed");
578 mod->mod_close_req = NULL;
579 req->rq_cb_data = NULL;
580 req->rq_commit_cb = NULL;
582 open_req = mod->mod_open_req;
583 LASSERT(open_req != NULL);
584 LASSERT(open_req != LP_POISON);
585 LASSERT(open_req->rq_type != LI_POISON);
587 DEBUG_REQ(D_HA, open_req, "open req balanced");
588 if (open_req->rq_transno == 0) {
589 DEBUG_REQ(D_ERROR, open_req, "BUG 3892 open");
590 DEBUG_REQ(D_ERROR, req, "BUG 3892 close");
591 LASSERTF(open_req->rq_transno != 0, "BUG 3892");
593 LASSERT(open_req->rq_import == imp);
595 /* We no longer want to preserve this for transno-unconditional
597 spin_lock(&open_req->rq_lock);
598 open_req->rq_replay = 0;
599 spin_unlock(&open_req->rq_lock);
602 int mdc_close(struct obd_export *exp, struct obdo *oa,
603 struct obd_client_handle *och,
604 struct ptlrpc_request **request)
606 struct obd_device *obd = class_exp2obd(exp);
607 struct obd_import *imp = class_exp2cliimp(exp);
608 int reqsize[3] = {0, sizeof(struct mds_body),
609 obd->u.cli.cl_max_mds_cookiesize};
610 int rc, repsize[3] = {sizeof(struct mds_body),
611 obd->u.cli.cl_max_mds_easize,
612 obd->u.cli.cl_max_mds_cookiesize};
613 struct ptlrpc_request *req;
614 struct mdc_open_data *mod;
617 if (imp->imp_connection == NULL) {
618 CERROR("request on not connected import %s\n",
619 imp->imp_obd->obd_name);
623 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
624 MDS_CLOSE, 3, reqsize, NULL);
626 GOTO(out, rc = -ENOMEM);
628 //reqsize[0] = lustre_secdesc_size();
629 //lustre_pack_secdesc(req, reqsize[0]);
631 /* Ensure that this close's handle is fixed up during replay. */
632 LASSERT(och != NULL);
634 if (likely(mod != NULL)) {
635 mod->mod_close_req = req;
636 LASSERT(mod->mod_open_req->rq_type != LI_POISON);
637 DEBUG_REQ(D_HA, mod->mod_open_req, "matched open");
639 CDEBUG(D_HA, "couldn't find open req; "
640 "expecting close error\n");
643 mdc_close_pack(req, 1, oa, oa->o_valid, och);
645 req->rq_replen = lustre_msg_size(3, repsize);
646 req->rq_commit_cb = mdc_commit_close;
647 LASSERT(req->rq_cb_data == NULL);
648 req->rq_cb_data = mod;
650 mdc_get_rpc_lock(obd->u.cli.cl_close_lock, NULL);
651 rc = ptlrpc_queue_wait(req);
652 mdc_put_rpc_lock(obd->u.cli.cl_close_lock, NULL);
654 if (req->rq_repmsg == NULL) {
655 CDEBUG(D_HA, "request failed to send: %p, %d\n", req,
658 rc = req->rq_status ? req->rq_status : -EIO;
659 } else if (rc == 0) {
660 rc = req->rq_repmsg->status;
661 if (req->rq_repmsg->type == PTL_RPC_MSG_ERR) {
662 DEBUG_REQ(D_ERROR, req, "type == PTL_RPC_MSG_ERR, "
668 CERROR("Unexpected: can't find mdc_open_data, but "
669 "close succeeded. Please tell CFS.\n");
670 if (!lustre_swab_repbuf(req, 0, sizeof(struct mds_body),
671 lustre_swab_mds_body))
673 CERROR("Error unpacking mds_body\n");
685 int mdc_done_writing(struct obd_export *exp, struct obdo *obdo)
687 struct ptlrpc_request *req;
688 struct mds_body *body;
689 int rc, size[2] = {0, sizeof(*body)};
692 size[0] = lustre_secdesc_size();
694 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
695 MDS_DONE_WRITING, 2, size, NULL);
699 lustre_pack_secdesc(req, size[0]);
701 body = lustre_msg_buf(req->rq_reqmsg, MDS_REQ_REC_OFF,
704 mdc_pack_id(&body->id1, obdo->o_id, 0, obdo->o_mode,
705 obdo->o_mds, obdo->o_fid);
707 body->size = obdo->o_size;
708 body->blocks = obdo->o_blocks;
709 body->flags = obdo->o_flags;
710 body->valid = obdo->o_valid;
712 req->rq_replen = lustre_msg_size(1, &size[1]);
714 rc = ptlrpc_queue_wait(req);
715 ptlrpc_req_finished(req);
719 int mdc_readpage(struct obd_export *exp,
720 struct lustre_id *id,
721 __u64 offset, struct page *page,
722 struct ptlrpc_request **request)
724 struct obd_import *imp = class_exp2cliimp(exp);
725 struct ptlrpc_request *req = NULL;
726 struct ptlrpc_bulk_desc *desc = NULL;
727 struct mds_body *body;
728 int rc, size[2] = {0, sizeof(*body)};
731 CDEBUG(D_INODE, "inode: %ld\n", (long)id->li_stc.u.e3s.l3s_ino);
733 size[0] = lustre_secdesc_size();
735 req = ptlrpc_prep_req(imp, LUSTRE_MDS_VERSION, MDS_READPAGE,
738 GOTO(out, rc = -ENOMEM);
739 /* XXX FIXME bug 249 */
740 req->rq_request_portal = MDS_READPAGE_PORTAL;
742 lustre_pack_secdesc(req, size[0]);
744 desc = ptlrpc_prep_bulk_imp(req, 1, BULK_PUT_SINK, MDS_BULK_PORTAL);
746 GOTO(out, rc = -ENOMEM);
747 /* NB req now owns desc and will free it when it gets freed */
749 ptlrpc_prep_bulk_page(desc, page, 0, PAGE_CACHE_SIZE);
750 mdc_readdir_pack(req, 1, offset, PAGE_CACHE_SIZE, id);
752 req->rq_replen = lustre_msg_size(1, &size[1]);
753 rc = ptlrpc_queue_wait(req);
756 body = lustre_swab_repbuf(req, 0, sizeof (*body),
757 lustre_swab_mds_body);
759 CERROR("Can't unpack mds_body\n");
760 GOTO(out, rc = -EPROTO);
763 if (req->rq_bulk->bd_nob_transferred != PAGE_CACHE_SIZE) {
764 CERROR ("Unexpected # bytes transferred: %d"
766 req->rq_bulk->bd_nob_transferred,
768 GOTO (out, rc = -EPROTO);
778 static int mdc_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
779 void *karg, void *uarg)
781 struct obd_device *obd = exp->exp_obd;
782 struct obd_ioctl_data *data = karg;
783 struct obd_import *imp = obd->u.cli.cl_import;
784 struct llog_ctxt *ctxt;
788 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
791 if (!try_module_get(THIS_MODULE)) {
792 CERROR("Can't get module. Is it alive?");
797 case OBD_IOC_CLIENT_RECOVER:
798 rc = ptlrpc_recover_import(imp, data->ioc_inlbuf1);
802 case IOC_OSC_SET_ACTIVE:
803 rc = ptlrpc_set_import_active(imp, data->ioc_offset);
805 case IOC_OSC_CTL_RECOVERY:
806 rc = ptlrpc_import_control_recovery(imp, data->ioc_offset);
808 case OBD_IOC_PARSE: {
809 ctxt = llog_get_context(&exp->exp_obd->obd_llogs,
810 LLOG_CONFIG_REPL_CTXT);
811 rc = class_config_process_llog(ctxt, data->ioc_inlbuf1, NULL);
815 case OBD_IOC_LLOG_INFO:
816 case OBD_IOC_LLOG_PRINT: {
817 ctxt = llog_get_context(&obd->obd_llogs, LLOG_CONFIG_REPL_CTXT);
818 rc = llog_ioctl(ctxt, cmd, data);
824 CERROR("mdc_ioctl(): unrecognised ioctl %#x\n", cmd);
825 GOTO(out, rc = -ENOTTY);
828 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
831 module_put(THIS_MODULE);
837 int mdc_set_info(struct obd_export *exp, obd_count keylen,
838 void *key, obd_count vallen, void *val)
842 if (keylen == strlen("initial_recov") &&
843 memcmp(key, "initial_recov", strlen("initial_recov")) == 0) {
844 struct obd_import *imp = exp->exp_obd->u.cli.cl_import;
845 if (vallen != sizeof(int))
847 imp->imp_initial_recov = *(int *)val;
848 CDEBUG(D_HA, "%s: set imp_no_init_recov = %d\n",
849 exp->exp_obd->obd_name,
850 imp->imp_initial_recov);
852 } else if (keylen >= strlen("mds_type") &&
853 strcmp(key, "mds_type") == 0) {
854 struct ptlrpc_request *req;
855 char *bufs[2] = {key, val};
856 int rc, size[2] = {keylen, vallen};
858 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_OBD_VERSION,
859 OST_SET_INFO, 2, size, bufs);
863 req->rq_replen = lustre_msg_size(0, NULL);
864 rc = ptlrpc_queue_wait(req);
865 ptlrpc_req_finished(req);
867 } else if (keylen >= strlen("inter_mds") && strcmp(key, "inter_mds") == 0) {
868 struct obd_import *imp = class_exp2cliimp(exp);
869 imp->imp_server_timeout = 1;
870 CDEBUG(D_OTHER, "%s: timeout / 2\n", exp->exp_obd->obd_name);
872 } else if (keylen == strlen("sec") &&
873 memcmp(key, "sec", keylen) == 0) {
874 struct client_obd *cli = &exp->exp_obd->u.cli;
876 cli->cl_sec_flavor = ptlrpcs_name2flavor(val);
877 if (cli->cl_sec_flavor == PTLRPCS_FLVR_INVALID) {
878 CERROR("unrecognized security type %s\n", (char*) val);
883 } else if (keylen == strlen("sec_flags") &&
884 memcmp(key, "sec_flags", keylen) == 0) {
885 struct client_obd *cli = &exp->exp_obd->u.cli;
887 cli->cl_sec_flags = *((unsigned long *) val);
889 } else if (keylen == strlen("flush_cred") &&
890 memcmp(key, "flush_cred", keylen) == 0) {
891 struct client_obd *cli = &exp->exp_obd->u.cli;
894 ptlrpcs_import_flush_creds(cli->cl_import,
897 } else if (keylen == strlen("async") && memcmp(key, "async", keylen) == 0) {
898 struct client_obd *cl = &exp->exp_obd->u.cli;
899 if (vallen != sizeof(int))
901 cl->cl_async = *(int *)val;
902 CDEBUG(D_HA, "%s: set async = %d\n",
903 exp->exp_obd->obd_name, cl->cl_async);
909 static int mdc_statfs(struct obd_device *obd, struct obd_statfs *osfs,
910 unsigned long max_age)
912 struct obd_statfs *msfs;
913 struct ptlrpc_request *req;
914 int rc, size = sizeof(*msfs);
917 /* We could possibly pass max_age in the request (as an absolute
918 * timestamp or a "seconds.usec ago") so the target can avoid doing
919 * extra calls into the filesystem if that isn't necessary (e.g.
920 * during mount that would help a bit). Having relative timestamps
921 * is not so great if request processing is slow, while absolute
922 * timestamps are not ideal because they need time synchronization. */
923 req = ptlrpc_prep_req(obd->u.cli.cl_import, LUSTRE_MDS_VERSION,
924 MDS_STATFS, 0, NULL, NULL);
928 req->rq_replen = lustre_msg_size(1, &size);
930 mdc_get_rpc_lock(obd->u.cli.cl_rpc_lock, NULL);
931 rc = ptlrpc_queue_wait(req);
932 mdc_put_rpc_lock(obd->u.cli.cl_rpc_lock, NULL);
935 /* this can be LMV fake import, whcih is not connected. */
936 if (!req->rq_import->imp_connection)
937 memset(osfs, 0, sizeof(*osfs));
941 msfs = lustre_swab_repbuf(req, 0, sizeof(*msfs),
942 lustre_swab_obd_statfs);
944 CERROR("Can't unpack obd_statfs\n");
945 GOTO(out, rc = -EPROTO);
948 memcpy(osfs, msfs, sizeof (*msfs));
951 ptlrpc_req_finished(req);
955 static int mdc_pin(struct obd_export *exp, obd_id ino, __u32 gen, int type,
956 struct obd_client_handle *handle, int flag)
958 struct ptlrpc_request *req;
959 struct mds_body *body;
960 int rc, size[2] = {0, sizeof(*body)};
963 //size[0] = lustre_secdesc_size();
965 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
966 MDS_PIN, 2, size, NULL);
970 //lustre_pack_secdesc(req, size[0]);
972 body = lustre_msg_buf(req->rq_reqmsg,
973 MDS_REQ_REC_OFF, sizeof(*body));
975 /* FIXME-UMKA: here should be also mdsnum and fid. */
976 mdc_pack_id(&body->id1, ino, gen, type, 0, 0);
979 req->rq_replen = lustre_msg_size(1, &size[1]);
981 mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
982 rc = ptlrpc_queue_wait(req);
983 mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
985 CERROR("pin failed: %d\n", rc);
986 ptlrpc_req_finished(req);
990 body = lustre_swab_repbuf(req, 0, sizeof(*body), lustre_swab_mds_body);
992 ptlrpc_req_finished(req);
996 memcpy(&handle->och_fh, &body->handle, sizeof(body->handle));
997 handle->och_magic = OBD_CLIENT_HANDLE_MAGIC;
999 OBD_ALLOC(handle->och_mod, sizeof(*handle->och_mod));
1000 if (handle->och_mod == NULL) {
1001 DEBUG_REQ(D_ERROR, req, "can't allocate mdc_open_data");
1004 handle->och_mod->mod_open_req = req; /* will be dropped by unpin */
1009 static int mdc_unpin(struct obd_export *exp,
1010 struct obd_client_handle *handle, int flag)
1012 struct ptlrpc_request *req;
1013 struct mds_body *body;
1014 int rc, size[2] = {0, sizeof(*body)};
1017 if (handle->och_magic != OBD_CLIENT_HANDLE_MAGIC)
1020 //size[0] = lustre_secdesc_size();
1022 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
1023 MDS_CLOSE, 2, size, NULL);
1027 //lustre_pack_secdesc(req, size[0]);
1029 body = lustre_msg_buf(req->rq_reqmsg, MDS_REQ_REC_OFF, sizeof(*body));
1030 memcpy(&body->handle, &handle->och_fh, sizeof(body->handle));
1033 req->rq_replen = lustre_msg_size(0, NULL);
1034 mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
1035 rc = ptlrpc_queue_wait(req);
1036 mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
1039 CERROR("unpin failed: %d\n", rc);
1041 ptlrpc_req_finished(req);
1042 ptlrpc_req_finished(handle->och_mod->mod_open_req);
1043 OBD_FREE(handle->och_mod, sizeof(*handle->och_mod));
1047 int mdc_sync(struct obd_export *exp, struct lustre_id *id,
1048 struct ptlrpc_request **request)
1050 struct ptlrpc_request *req;
1051 struct mds_body *body;
1052 int size[2] = {0, sizeof(*body)};
1056 //size[0] = lustre_secdesc_size();
1058 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
1059 MDS_SYNC, 2, size, NULL);
1061 RETURN(rc = -ENOMEM);
1063 //lustre_pack_secdesc(req, size[0]);
1066 body = lustre_msg_buf(req->rq_reqmsg, MDS_REQ_REC_OFF,
1068 memcpy(&body->id1, id, sizeof(*id));
1071 req->rq_replen = lustre_msg_size(1, &size[1]);
1073 rc = ptlrpc_queue_wait(req);
1074 if (rc || request == NULL)
1075 ptlrpc_req_finished(req);
1082 static int mdc_import_event(struct obd_device *obd, struct obd_import *imp,
1083 enum obd_import_event event)
1087 LASSERT(imp->imp_obd == obd);
1090 case IMP_EVENT_DISCON: {
1093 case IMP_EVENT_INACTIVE: {
1094 if (obd->obd_observer)
1095 rc = obd_notify(obd->obd_observer, obd, 0, 0);
1098 case IMP_EVENT_INVALIDATE: {
1099 struct ldlm_namespace *ns = obd->obd_namespace;
1101 ldlm_namespace_cleanup(ns, LDLM_FL_LOCAL_ONLY);
1105 case IMP_EVENT_ACTIVE: {
1106 if (obd->obd_observer)
1107 rc = obd_notify(obd->obd_observer, obd, 1, 0);
1111 CERROR("Unknown import event %d\n", event);
1117 static int mdc_attach(struct obd_device *dev, obd_count len, void *data)
1119 struct lprocfs_static_vars lvars;
1121 lprocfs_init_vars(mdc, &lvars);
1122 return lprocfs_obd_attach(dev, lvars.obd_vars);
1125 static int mdc_detach(struct obd_device *dev)
1127 return lprocfs_obd_detach(dev);
1130 static int mdc_setup(struct obd_device *obd, obd_count len, void *buf)
1132 struct client_obd *cli = &obd->u.cli;
1136 OBD_ALLOC(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
1137 if (!cli->cl_rpc_lock)
1139 mdc_init_rpc_lock(cli->cl_rpc_lock);
1143 OBD_ALLOC(cli->cl_setattr_lock, sizeof (*cli->cl_setattr_lock));
1144 if (!cli->cl_setattr_lock)
1145 GOTO(err_rpc_lock, rc = -ENOMEM);
1146 mdc_init_rpc_lock(cli->cl_setattr_lock);
1148 OBD_ALLOC(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
1149 if (!cli->cl_close_lock)
1150 GOTO(err_setattr_lock, rc = -ENOMEM);
1151 mdc_init_rpc_lock(cli->cl_close_lock);
1153 rc = client_obd_setup(obd, len, buf);
1155 GOTO(err_close_lock, rc);
1157 rc = obd_llog_init(obd, &obd->obd_llogs, obd, 0, NULL);
1159 mdc_cleanup(obd, 0);
1160 CERROR("failed to setup llogging subsystems\n");
1166 OBD_FREE(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
1168 OBD_FREE(cli->cl_setattr_lock, sizeof (*cli->cl_setattr_lock));
1170 OBD_FREE(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
1175 static int mdc_init_ea_size(struct obd_export *exp, int easize, int cookiesize)
1177 struct obd_device *obd = exp->exp_obd;
1178 struct client_obd *cli = &obd->u.cli;
1181 if (cli->cl_max_mds_easize < easize)
1182 cli->cl_max_mds_easize = easize;
1183 if (cli->cl_max_mds_cookiesize < cookiesize)
1184 cli->cl_max_mds_cookiesize = cookiesize;
1188 static int mdc_precleanup(struct obd_device *obd, int flags)
1192 rc = obd_llog_finish(obd, &obd->obd_llogs, 0);
1194 CERROR("failed to cleanup llogging subsystems\n");
1199 static int mdc_cleanup(struct obd_device *obd, int flags)
1201 struct client_obd *cli = &obd->u.cli;
1203 OBD_FREE(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
1204 OBD_FREE(cli->cl_setattr_lock, sizeof (*cli->cl_setattr_lock));
1205 OBD_FREE(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
1209 return client_obd_cleanup(obd, flags);
1213 static int mdc_llog_init(struct obd_device *obd, struct obd_llogs *llogs,
1214 struct obd_device *tgt, int count,
1215 struct llog_catid *logid)
1217 struct llog_ctxt *ctxt;
1221 rc = obd_llog_setup(obd, llogs, LLOG_CONFIG_REPL_CTXT, tgt, 0, NULL,
1224 ctxt = llog_get_context(llogs, LLOG_CONFIG_REPL_CTXT);
1225 ctxt->loc_imp = obd->u.cli.cl_import;
1231 static int mdc_llog_finish(struct obd_device *obd,
1232 struct obd_llogs *llogs, int count)
1237 rc = obd_llog_cleanup(llog_get_context(llogs, LLOG_CONFIG_REPL_CTXT));
1240 static struct obd_device *mdc_get_real_obd(struct obd_export *exp,
1241 struct lustre_id *id)
1244 RETURN(exp->exp_obd);
1247 static int mdc_get_info(struct obd_export *exp, __u32 keylen,
1248 void *key, __u32 *valsize, void *val)
1250 struct ptlrpc_request *req;
1251 char *bufs[1] = {key};
1255 if (!valsize || !val)
1258 if (keylen == strlen("remote_flag") && !strcmp(key, "remote_flag")) {
1259 struct obd_import *imp;
1260 struct obd_connect_data *data;
1262 imp = class_exp2cliimp(exp);
1268 if (imp->imp_state != LUSTRE_IMP_FULL) {
1269 CERROR("import state not full\n");
1273 data = &imp->imp_connect_data;
1274 if (data->ocd_connect_flags & OBD_CONNECT_REMOTE) {
1277 } else if (data->ocd_connect_flags & OBD_CONNECT_LOCAL) {
1281 CERROR("no remote flag set?\n");
1285 if ((keylen < strlen("mdsize") || strcmp(key, "mdsize") != 0) &&
1286 (keylen < strlen("mdsnum") || strcmp(key, "mdsnum") != 0) &&
1287 (keylen < strlen("rootid") || strcmp(key, "rootid") != 0))
1290 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_OBD_VERSION,
1291 OST_GET_INFO, 1, (int *)&keylen, bufs);
1295 req->rq_replen = lustre_msg_size(1, (int *)valsize);
1296 rc = ptlrpc_queue_wait(req);
1300 if (keylen >= strlen("rootid") && !strcmp(key, "rootid")) {
1301 struct lustre_id *reply;
1303 reply = lustre_swab_repbuf(req, 0, sizeof(*reply),
1304 lustre_swab_lustre_id);
1305 if (reply == NULL) {
1306 CERROR("Can't unpack %s\n", (char *)key);
1307 GOTO(out_req, rc = -EPROTO);
1310 *(struct lustre_id *)val = *reply;
1311 } else if (keylen >= strlen("lovdesc") && !strcmp(key, "lovdesc")) {
1312 struct lov_desc *reply;
1314 reply = lustre_swab_repbuf(req, 0, sizeof(*reply),
1315 lustre_swab_lov_desc);
1316 if (reply == NULL) {
1317 CERROR("Can't unpack %s\n", (char *)key);
1318 GOTO(out_req, rc = -EPROTO);
1321 *(struct lov_desc *)val = *reply;
1326 reply = lustre_swab_repbuf(req, 0, sizeof(*reply),
1327 lustre_swab_generic_32s);
1328 if (reply == NULL) {
1329 CERROR("Can't unpack %s\n", (char *)key);
1330 GOTO(out_req, rc = -EPROTO);
1332 *((__u32 *)val) = *reply;
1335 ptlrpc_req_finished(req);
1339 int mdc_obj_create(struct obd_export *exp, struct obdo *oa,
1340 void *acl, int acl_size,
1341 struct lov_stripe_md **ea, struct obd_trans_info *oti)
1343 struct ptlrpc_request *request;
1344 struct ost_body *body;
1346 int rc, size[2] = { sizeof(*body), acl_size };
1351 request = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_OBD_VERSION,
1352 OST_CREATE, 2, size, NULL);
1354 GOTO(out_req, rc = -ENOMEM);
1356 body = lustre_msg_buf(request->rq_reqmsg, 0, sizeof (*body));
1357 memcpy(&body->oa, oa, sizeof(body->oa));
1360 acl_buf = lustre_msg_buf(request->rq_reqmsg, 1, acl_size);
1361 memcpy(acl_buf, acl, acl_size);
1364 request->rq_replen = lustre_msg_size(1, size);
1365 rc = ptlrpc_queue_wait(request);
1369 body = lustre_swab_repbuf(request, 0, sizeof(*body),
1370 lustre_swab_ost_body);
1372 CERROR ("can't unpack ost_body\n");
1373 GOTO (out_req, rc = -EPROTO);
1376 memcpy(oa, &body->oa, sizeof(*oa));
1378 /* store ino/generation for recovery */
1379 body = lustre_msg_buf(request->rq_reqmsg, 0, sizeof (*body));
1380 body->oa.o_id = oa->o_id;
1381 body->oa.o_generation = oa->o_generation;
1382 body->oa.o_fid = oa->o_fid;
1383 body->oa.o_mds = oa->o_mds;
1385 CDEBUG(D_HA, "transno: "LPD64"\n", request->rq_repmsg->transno);
1388 ptlrpc_req_finished(request);
1392 int mdc_brw(int rw, struct obd_export *exp, struct obdo *oa,
1393 struct lov_stripe_md *ea, obd_count oa_bufs,
1394 struct brw_page *pgarr, struct obd_trans_info *oti)
1396 struct ptlrpc_bulk_desc *desc;
1397 struct niobuf_remote *niobuf;
1398 struct ptlrpc_request *req;
1399 struct obd_ioobj *ioobj;
1400 struct ost_body *body;
1404 opc = ((rw & OBD_BRW_WRITE) != 0) ? OST_WRITE : OST_READ;
1406 size[0] = sizeof(*body);
1407 size[1] = sizeof(*ioobj);
1408 size[2] = oa_bufs * sizeof(*niobuf);
1410 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_OBD_VERSION, opc,
1412 LASSERT(req != NULL);
1414 if (opc == OST_WRITE)
1415 desc = ptlrpc_prep_bulk_imp(req, oa_bufs, BULK_GET_SOURCE,
1418 desc = ptlrpc_prep_bulk_imp(req, oa_bufs, BULK_PUT_SINK,
1420 LASSERT(desc != NULL);
1422 body = lustre_msg_buf(req->rq_reqmsg, 0, sizeof(*body));
1423 ioobj = lustre_msg_buf(req->rq_reqmsg, 1, sizeof(*ioobj));
1424 niobuf = lustre_msg_buf(req->rq_reqmsg, 2, oa_bufs * sizeof(*niobuf));
1426 memcpy(&body->oa, oa, sizeof(*oa));
1427 obdo_to_ioobj(oa, ioobj);
1428 ioobj->ioo_bufcnt = oa_bufs;
1430 for (i = 0; i < oa_bufs; i++, niobuf++) {
1431 struct brw_page *pg = &pgarr[i];
1433 LASSERT(pg->count > 0);
1434 LASSERT((pg->disk_offset & ~PAGE_MASK) + pg->count <= PAGE_SIZE);
1436 ptlrpc_prep_bulk_page(desc, pg->pg, pg->disk_offset & ~PAGE_MASK,
1439 niobuf->offset = pg->disk_offset;
1440 niobuf->len = pg->count;
1441 niobuf->flags = pg->flag;
1444 /* size[0] still sizeof (*body) */
1445 if (opc == OST_WRITE) {
1446 /* 1 RC per niobuf */
1447 size[1] = sizeof(__u32) * oa_bufs;
1448 req->rq_replen = lustre_msg_size(2, size);
1450 /* 1 RC for the whole I/O */
1451 req->rq_replen = lustre_msg_size(1, size);
1453 err = ptlrpc_queue_wait(req);
1456 ptlrpc_req_finished(req);
1460 static int mdc_valid_attrs(struct obd_export *exp,
1461 struct lustre_id *id)
1463 struct ldlm_res_id res_id = { .name = {0} };
1464 struct obd_device *obd = exp->exp_obd;
1465 struct lustre_handle lockh;
1466 ldlm_policy_data_t policy;
1470 res_id.name[0] = id_fid(id);
1471 res_id.name[1] = id_group(id);
1472 policy.l_inodebits.bits = MDS_INODELOCK_UPDATE;
1474 CDEBUG(D_INFO, "trying to match res "LPU64"\n",
1477 /* FIXME use LDLM_FL_TEST_LOCK instead */
1478 flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_CBPENDING;
1479 if (ldlm_lock_match(obd->obd_namespace, flags, &res_id,
1480 LDLM_IBITS, &policy, LCK_PR, &lockh)) {
1481 ldlm_lock_decref(&lockh, LCK_PR);
1485 if (ldlm_lock_match(obd->obd_namespace, flags, &res_id,
1486 LDLM_IBITS, &policy, LCK_PW, &lockh)) {
1487 ldlm_lock_decref(&lockh, LCK_PW);
1493 static int mdc_change_cbdata_name(struct obd_export *exp,
1494 struct lustre_id *pid,
1495 char *name, int len,
1496 struct lustre_id *cid,
1497 ldlm_iterator_t it, void *data)
1500 rc = mdc_change_cbdata(exp, cid, it, data);
1504 struct obd_ops mdc_obd_ops = {
1505 .o_owner = THIS_MODULE,
1506 .o_attach = mdc_attach,
1507 .o_detach = mdc_detach,
1508 .o_setup = mdc_setup,
1509 .o_precleanup = mdc_precleanup,
1510 .o_cleanup = mdc_cleanup,
1511 .o_add_conn = client_import_add_conn,
1512 .o_del_conn = client_import_del_conn,
1513 .o_connect = client_connect_import,
1514 .o_disconnect = client_disconnect_export,
1515 .o_iocontrol = mdc_iocontrol,
1516 .o_packmd = mdc_packmd,
1517 .o_unpackmd = mdc_unpackmd,
1518 .o_statfs = mdc_statfs,
1520 .o_unpin = mdc_unpin,
1521 .o_import_event = mdc_import_event,
1522 .o_llog_init = mdc_llog_init,
1523 .o_llog_finish = mdc_llog_finish,
1524 .o_create = mdc_obj_create,
1525 .o_set_info = mdc_set_info,
1526 .o_get_info = mdc_get_info,
1528 .o_cancel_unused = mdc_cancel_unused,
1529 .o_init_ea_size = mdc_init_ea_size,
1532 struct md_ops mdc_md_ops = {
1533 .m_getstatus = mdc_getstatus,
1534 .m_getattr = mdc_getattr,
1535 .m_close = mdc_close,
1536 .m_create = mdc_create,
1537 .m_done_writing = mdc_done_writing,
1538 .m_enqueue = mdc_enqueue,
1539 .m_getattr_lock = mdc_getattr_lock,
1540 .m_intent_lock = mdc_intent_lock,
1542 .m_rename = mdc_rename,
1543 .m_setattr = mdc_setattr,
1545 .m_readpage = mdc_readpage,
1546 .m_unlink = mdc_unlink,
1547 .m_valid_attrs = mdc_valid_attrs,
1548 .m_req2lustre_md = mdc_req2lustre_md,
1549 .m_set_open_replay_data = mdc_set_open_replay_data,
1550 .m_clear_open_replay_data = mdc_clear_open_replay_data,
1551 .m_store_inode_generation = mdc_store_inode_generation,
1552 .m_set_lock_data = mdc_set_lock_data,
1553 .m_get_real_obd = mdc_get_real_obd,
1554 .m_change_cbdata_name = mdc_change_cbdata_name,
1555 .m_change_cbdata = mdc_change_cbdata,
1556 .m_access_check = mdc_access_check,
1559 int __init mdc_init(void)
1561 struct lprocfs_static_vars lvars;
1563 lprocfs_init_vars(mdc, &lvars);
1564 return class_register_type(&mdc_obd_ops, &mdc_md_ops,
1565 lvars.module_vars, OBD_MDC_DEVICENAME);
1569 static void /*__exit*/ mdc_exit(void)
1571 class_unregister_type(OBD_MDC_DEVICENAME);
1574 MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
1575 MODULE_DESCRIPTION("Lustre Metadata Client");
1576 MODULE_LICENSE("GPL");
1578 EXPORT_SYMBOL(mdc_req2lustre_md);
1579 EXPORT_SYMBOL(mdc_change_cbdata);
1580 EXPORT_SYMBOL(mdc_getstatus);
1581 EXPORT_SYMBOL(mdc_getattr);
1582 EXPORT_SYMBOL(mdc_getattr_lock);
1583 EXPORT_SYMBOL(mdc_create);
1584 EXPORT_SYMBOL(mdc_unlink);
1585 EXPORT_SYMBOL(mdc_rename);
1586 EXPORT_SYMBOL(mdc_link);
1587 EXPORT_SYMBOL(mdc_readpage);
1588 EXPORT_SYMBOL(mdc_setattr);
1589 EXPORT_SYMBOL(mdc_close);
1590 EXPORT_SYMBOL(mdc_done_writing);
1591 EXPORT_SYMBOL(mdc_sync);
1592 EXPORT_SYMBOL(mdc_set_open_replay_data);
1593 EXPORT_SYMBOL(mdc_clear_open_replay_data);
1594 EXPORT_SYMBOL(mdc_store_inode_generation);
1596 module_init(mdc_init);
1597 module_exit(mdc_exit);