1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
38 # define EXPORT_SYMTAB
40 #define DEBUG_SUBSYSTEM S_MDC
43 # include <linux/module.h>
44 # include <linux/pagemap.h>
45 # include <linux/miscdevice.h>
46 # include <linux/init.h>
48 # include <liblustre.h>
51 #include <obd_class.h>
52 #include <lustre_dlm.h>
53 #include <lprocfs_status.h>
54 #include <lustre_param.h>
55 #include "mdc_internal.h"
57 static quota_interface_t *quota_interface;
59 #define REQUEST_MINOR 244
61 static quota_interface_t *quota_interface;
62 extern quota_interface_t mdc_quota_interface;
64 static int mdc_cleanup(struct obd_device *obd);
66 extern int mds_queue_req(struct ptlrpc_request *);
67 /* Helper that implements most of mdc_getstatus and signal_completed_replay. */
68 /* XXX this should become mdc_get_info("key"), sending MDS_GET_INFO RPC */
69 static int send_getstatus(struct obd_export *exp, struct ll_fid *rootfid,
70 int level, int msg_flags)
72 struct ptlrpc_request *req;
73 struct mds_body *body;
74 __u32 size[3] = { sizeof(struct ptlrpc_body),
75 sizeof(struct mdt_body),
76 sizeof(struct lustre_capa) };
80 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION, MDS_GETSTATUS, 2, size,
83 GOTO(out, rc = -ENOMEM);
85 req->rq_export = class_export_get(exp);
86 req->rq_send_state = level;
87 ptlrpc_req_set_repsize(req, 3, size);
89 mdc_pack_req_body(req, REQ_REC_OFF, 0, NULL, 0, 0);
90 lustre_msg_add_flags(req->rq_reqmsg, msg_flags);
91 rc = ptlrpc_queue_wait(req);
94 body = lustre_swab_repbuf(req, REPLY_REC_OFF, sizeof(*body),
95 lustre_swab_mds_body);
97 CERROR ("Can't extract mds_body\n");
98 GOTO (out, rc = -EPROTO);
101 memcpy(rootfid, &body->fid1, sizeof(*rootfid));
103 CDEBUG(D_NET, "root ino="LPU64", last_committed="LPU64
104 ", last_xid="LPU64"\n",
106 lustre_msg_get_last_committed(req->rq_repmsg),
107 lustre_msg_get_last_xid(req->rq_repmsg));
112 ptlrpc_req_finished(req);
116 /* This should be mdc_get_info("ROOT") */
117 int mdc_getstatus(struct obd_export *exp, struct ll_fid *rootfid)
119 return send_getstatus(exp, rootfid, LUSTRE_IMP_FULL, 0);
123 int mdc_getattr_common(struct obd_export *exp, unsigned int ea_size,
124 unsigned int acl_size, struct ptlrpc_request *req)
126 struct obd_device *obddev = class_exp2obd(exp);
127 struct mds_body *body;
129 __u32 size[6] = { sizeof(struct ptlrpc_body),
130 sizeof(struct mdt_body) };
131 int bufcount = 2, rc;
134 /* request message already built */
136 size[bufcount++] = ea_size;
137 CDEBUG(D_INODE, "reserved %u bytes for MD/symlink in packet\n",
141 size[bufcount++] = acl_size;
142 CDEBUG(D_INODE, "reserved %u bytes for ACL\n", acl_size);
145 if (mdc_exp_is_2_0_server(exp)) {
149 ptlrpc_req_set_repsize(req, bufcount, size);
151 mdc_enter_request(&obddev->u.cli);
152 rc = ptlrpc_queue_wait(req);
153 mdc_exit_request(&obddev->u.cli);
157 body = lustre_swab_repbuf(req, REPLY_REC_OFF, sizeof(*body),
158 lustre_swab_mds_body);
160 CERROR ("Can't unpack mds_body\n");
164 CDEBUG(D_NET, "mode: %o\n", body->mode);
166 lustre_set_rep_swabbed(req, REPLY_REC_OFF + 1);
167 if (body->eadatasize != 0) {
168 /* reply indicates presence of eadata; check it's there... */
169 eadata = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF + 1,
171 if (eadata == NULL) {
172 CERROR ("Missing/short eadata\n");
180 int mdc_getattr(struct obd_export *exp, struct ll_fid *fid,
181 obd_valid valid, unsigned int ea_size,
182 struct ptlrpc_request **request)
184 struct ptlrpc_request *req;
185 __u32 size[2] = { sizeof(struct ptlrpc_body),
186 sizeof(struct mdt_body) };
187 int acl_size = 0, rc;
190 /* XXX do we need to make another request here? We just did a getattr
191 * to do the lookup in the first place.
193 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
194 MDS_GETATTR, 2, size, NULL);
196 GOTO(out, rc = -ENOMEM);
198 req->rq_export = class_export_get(exp);
199 mdc_pack_req_body(req, REQ_REC_OFF, valid, fid, ea_size,
200 MDS_BFLAG_EXT_FLAGS/*request "new" flags(bug 9486)*/);
202 /* currently only root inode will call us with FLACL */
203 if (valid & OBD_MD_FLACL)
204 acl_size = LUSTRE_POSIX_ACL_MAX_SIZE;
206 rc = mdc_getattr_common(exp, ea_size, acl_size, req);
208 ptlrpc_req_finished (req);
216 int mdc_getattr_name(struct obd_export *exp, struct ll_fid *fid,
217 const char *filename, int namelen, unsigned long valid,
218 unsigned int ea_size, struct ptlrpc_request **request)
220 struct ptlrpc_request *req;
221 __u32 size[4] = { [MSG_PTLRPC_BODY_OFF] = sizeof(struct ptlrpc_body),
222 [REQ_REC_OFF] = sizeof(struct mdt_body),
223 [REQ_REC_OFF + 1] = namelen };
226 int nameoffset = REQ_REC_OFF + 1;
229 if (mdc_exp_is_2_0_server(exp)) {
230 size[REQ_REC_OFF + 1] = 0;
231 size[REQ_REC_OFF + 2] = namelen;
236 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
237 MDS_GETATTR_NAME, bufcount, size, NULL);
239 GOTO(out, rc = -ENOMEM);
241 req->rq_export = class_export_get(exp);
242 mdc_pack_req_body(req, REQ_REC_OFF, valid, fid, ea_size,
243 MDS_BFLAG_EXT_FLAGS/*request "new" flags(bug 9486)*/);
245 LASSERT(strnlen(filename, namelen) == namelen - 1);
246 memcpy(lustre_msg_buf(req->rq_reqmsg, nameoffset, namelen),
249 rc = mdc_getattr_common(exp, ea_size, 0, req);
251 ptlrpc_req_finished (req);
260 int mdc_xattr_common(struct obd_export *exp, struct ll_fid *fid,
261 int opcode, obd_valid valid, const char *xattr_name,
262 const char *input, int input_size, int output_size,
263 int flags, struct ptlrpc_request **request)
265 struct obd_device *obddev = class_exp2obd(exp);
266 struct ptlrpc_request *req;
267 __u32 size[5] = { [MSG_PTLRPC_BODY_OFF] = sizeof(struct ptlrpc_body),
268 [REQ_REC_OFF] = sizeof(struct mdt_body),
269 [REQ_REC_OFF + 1] = 0, /* capa */
270 [REQ_REC_OFF + 2] = 0, /* name */
271 [REQ_REC_OFF + 3] = 0 };
272 int rc, xattr_namelen = 0, bufcnt = 2, offset = REQ_REC_OFF + 1;
276 if (mdc_exp_is_2_0_server(exp)) {
279 if (opcode == MDS_SETXATTR) {
280 size[REQ_REC_OFF] = sizeof (struct mdt_rec_setxattr);
286 xattr_namelen = strlen(xattr_name) + 1;
287 size[bufcnt++] = xattr_namelen;
291 size[bufcnt++] = input_size;
294 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
295 opcode, bufcnt, size, NULL);
297 GOTO(out, rc = -ENOMEM);
299 req->rq_export = class_export_get(exp);
301 if (opcode == MDS_REINT && mdc_exp_is_2_0_server(exp)) {
302 struct mdt_rec_setxattr *rec;
303 rec = lustre_msg_buf(req->rq_reqmsg, REQ_REC_OFF,
304 sizeof(struct mdt_rec_setxattr));
305 rec->sx_opcode = REINT_SETXATTR;
306 rec->sx_fsuid = cfs_curproc_fsuid();
307 rec->sx_fsgid = cfs_curproc_fsgid();
308 rec->sx_cap = cfs_curproc_cap_pack();
309 rec->sx_suppgid1 = -1;
310 rec->sx_suppgid2 = -1;
311 rec->sx_fid = *((struct lu_fid*)fid);
312 rec->sx_valid = valid;
313 rec->sx_size = output_size;
314 rec->sx_flags = flags;
317 mdc_pack_req_body(req, REQ_REC_OFF, valid, fid, output_size, flags);
321 tmp = lustre_msg_buf(req->rq_reqmsg, offset++, xattr_namelen);
322 memcpy(tmp, xattr_name, xattr_namelen);
325 tmp = lustre_msg_buf(req->rq_reqmsg, offset++, input_size);
326 memcpy(tmp, input, input_size);
329 size[REPLY_REC_OFF] = sizeof(struct mdt_body);
330 if (mdc_exp_is_2_0_server(exp)) {
334 if (opcode == MDS_GETXATTR) {
342 /* we do this even output_size is 0, because server is doing that */
343 size[bufcnt++] = output_size;
344 ptlrpc_req_set_repsize(req, bufcnt, size);
347 if (opcode == MDS_SETXATTR || opcode == MDS_REINT)
348 mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
350 mdc_enter_request(&obddev->u.cli);
352 rc = ptlrpc_queue_wait(req);
354 if (opcode == MDS_SETXATTR || opcode == MDS_REINT)
355 mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
357 mdc_exit_request(&obddev->u.cli);
362 if (opcode == MDS_GETXATTR) {
363 struct mds_body * body = lustre_swab_repbuf(req, REPLY_REC_OFF,
365 lustre_swab_mds_body);
367 CERROR ("Can't unpack mds_body\n");
368 GOTO(err_out, rc = -EPROTO);
375 ptlrpc_req_finished(req);
380 int mdc_setxattr(struct obd_export *exp, struct ll_fid *fid,
381 obd_valid valid, const char *xattr_name,
382 const char *input, int input_size,
383 int output_size, int flags,
384 struct ptlrpc_request **request)
386 return mdc_xattr_common(exp, fid, MDS_SETXATTR, valid, xattr_name,
387 input, input_size, output_size, flags, request);
390 int mdc_getxattr(struct obd_export *exp, struct ll_fid *fid,
391 obd_valid valid, const char *xattr_name,
392 const char *input, int input_size,
393 int output_size, struct ptlrpc_request **request)
395 return mdc_xattr_common(exp, fid, MDS_GETXATTR, valid, xattr_name,
396 input, input_size, output_size, 0, request);
399 /* For the fid-less server */
400 static void mdc_store_inode_generation_18(struct ptlrpc_request *req,
401 int reqoff, int repoff)
403 struct mds_rec_create *rec = lustre_msg_buf(req->rq_reqmsg, reqoff,
405 struct mds_body *body = lustre_msg_buf(req->rq_repmsg, repoff,
408 LASSERT (rec != NULL);
409 LASSERT (body != NULL);
411 memcpy(&rec->cr_replayfid, &body->fid1, sizeof rec->cr_replayfid);
412 if (body->fid1.id == 0) {
413 DEBUG_REQ(D_ERROR, req, "saving replay request with id = 0 "
414 "gen = %u", body->fid1.generation);
418 DEBUG_REQ(D_INODE, req, "storing generation %u for ino "LPU64,
419 rec->cr_replayfid.generation, rec->cr_replayfid.id);
422 static void mdc_store_inode_generation_20(struct ptlrpc_request *req,
423 int reqoff, int repoff)
425 struct mdt_rec_create *rec = lustre_msg_buf(req->rq_reqmsg, reqoff,
427 struct mdt_body *body = lustre_msg_buf(req->rq_repmsg, repoff,
430 LASSERT (rec != NULL);
431 LASSERT (body != NULL);
433 rec->cr_fid2 = body->fid1;
434 rec->cr_ioepoch = body->ioepoch;
435 rec->cr_old_handle.cookie = body->handle.cookie;
437 if (!fid_is_sane(&body->fid1)) {
438 DEBUG_REQ(D_ERROR, req, "saving replay request with"
443 DEBUG_REQ(D_INODE, req, "storing generation %u for ino "LPU64,
444 rec->cr_fid1.f_oid, rec->cr_fid2.f_seq);
447 /* This should be called with both the request and the reply still packed. */
448 void mdc_store_inode_generation(struct ptlrpc_request *req, int reqoff,
451 if (mdc_req_is_2_0_server(req))
452 mdc_store_inode_generation_20(req, reqoff, repoff);
454 mdc_store_inode_generation_18(req, reqoff, repoff);
457 #ifdef CONFIG_FS_POSIX_ACL
459 int mdc_unpack_acl(struct obd_export *exp, struct ptlrpc_request *req,
460 struct lustre_md *md, unsigned int offset)
462 struct mds_body *body = md->body;
463 struct posix_acl *acl;
470 buf = lustre_msg_buf(req->rq_repmsg, offset, body->aclsize);
472 CERROR("aclsize %u, bufcount %u, bufsize %u\n",
473 body->aclsize, lustre_msg_bufcount(req->rq_repmsg),
474 (lustre_msg_bufcount(req->rq_repmsg) <= offset) ?
475 -1 : lustre_msg_buflen(req->rq_repmsg, offset));
479 acl = posix_acl_from_xattr(buf, body->aclsize);
482 CERROR("convert xattr to acl: %d\n", rc);
486 rc = posix_acl_valid(acl);
488 CERROR("validate acl: %d\n", rc);
489 posix_acl_release(acl);
497 #define mdc_unpack_acl(exp, req, md, offset) 0
500 int mdc_req2lustre_md(struct ptlrpc_request *req, int offset,
501 struct obd_export *exp,
502 struct lustre_md *md)
505 int iop = mdc_req_is_2_0_server(req);
509 memset(md, 0, sizeof(*md));
511 md->body = lustre_msg_buf(req->rq_repmsg, offset, sizeof (*md->body));
512 LASSERT (md->body != NULL);
513 LASSERT(lustre_rep_swabbed(req, offset));
516 if (md->body->valid & OBD_MD_FLEASIZE) {
518 struct lov_mds_md *lmm;
520 if (!S_ISREG(md->body->mode)) {
521 CERROR("OBD_MD_FLEASIZE set, should be a regular file, "
523 GOTO(err_out, rc = -EPROTO);
526 if (md->body->eadatasize == 0) {
527 CERROR ("OBD_MD_FLEASIZE set, but eadatasize 0\n");
528 GOTO(err_out, rc = -EPROTO);
530 lmmsize = md->body->eadatasize;
531 lmm = lustre_msg_buf(req->rq_repmsg, offset, lmmsize);
533 CERROR ("incorrect message: lmm == 0\n");
534 GOTO(err_out, rc = -EPROTO);
536 LASSERT(lustre_rep_swabbed(req, offset));
538 rc = obd_unpackmd(exp, &md->lsm, lmm, lmmsize);
542 if (rc < sizeof(*md->lsm)) {
543 CERROR ("lsm size too small: rc < sizeof (*md->lsm) "
544 "(%d < %d)\n", rc, (int)sizeof(*md->lsm));
545 GOTO(err_out, rc = -EPROTO);
551 } else if (md->body->valid & OBD_MD_FLDIREA) {
552 if(!S_ISDIR(md->body->mode)) {
553 CERROR("OBD_MD_FLDIREA set, should be a directory, but "
555 GOTO(err_out, rc = -EPROTO);
563 /* for ACL, it's possible that FLACL is set but aclsize is zero.
564 * only when aclsize != 0 there's an actual segment for ACL in
567 if ((md->body->valid & OBD_MD_FLACL) && md->body->aclsize) {
568 rc = mdc_unpack_acl(exp, req, md, offset);
578 obd_free_memmd(exp, &md->lsm);
582 void mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md)
585 obd_free_memmd(exp, &md->lsm);
587 #ifdef CONFIG_FS_POSIX_ACL
589 posix_acl_release(md->posix_acl);
590 md->posix_acl = NULL;
595 static void mdc_commit_open(struct ptlrpc_request *req)
597 struct mdc_open_data *mod = req->rq_cb_data;
601 if (mod->mod_och != NULL)
602 mod->mod_och->och_mod = NULL;
605 req->rq_cb_data = NULL;
608 static void mdc_replay_open(struct ptlrpc_request *req)
610 struct mdc_open_data *mod = req->rq_cb_data;
611 struct obd_client_handle *och;
612 struct ptlrpc_request *close_req;
613 struct lustre_handle old;
614 struct mds_body *body;
617 body = lustre_swab_repbuf(req, DLM_REPLY_REC_OFF, sizeof(*body),
618 lustre_swab_mds_body);
619 LASSERT (body != NULL);
622 DEBUG_REQ(D_ERROR, req,
623 "can't properly replay without open data");
627 DEBUG_REQ(D_HA, req, "mdc open data found");
631 struct lustre_handle *file_fh;
632 LASSERT(och->och_magic == OBD_CLIENT_HANDLE_MAGIC);
633 file_fh = &och->och_fh;
634 CDEBUG(D_RPCTRACE, "updating handle from "LPX64" to "LPX64"\n",
635 file_fh->cookie, body->handle.cookie);
637 *file_fh = body->handle;
640 close_req = mod->mod_close_req;
642 if (close_req != NULL) {
643 LASSERT(lustre_msg_get_opc(close_req->rq_reqmsg) == MDS_CLOSE);
644 if (mdc_req_is_2_0_server(close_req)) {
645 struct mdt_epoch *epoch = NULL;
647 epoch = lustre_msg_buf(close_req->rq_reqmsg,
648 REQ_REC_OFF, sizeof(*epoch));
651 LASSERT(!memcmp(&old, &epoch->handle,
653 DEBUG_REQ(D_RPCTRACE, close_req,
654 "updating close with new fh");
655 epoch->handle = body->handle;
657 struct mds_body *close_body = NULL;
659 close_body = lustre_msg_buf(close_req->rq_reqmsg,
661 sizeof(*close_body));
663 LASSERT(!memcmp(&old, &close_body->handle,
665 DEBUG_REQ(D_RPCTRACE, close_req,
666 "updating close with new fh");
667 close_body->handle = body->handle;
674 static void mdc_set_open_replay_data_20(struct obd_client_handle *och,
675 struct ptlrpc_request *open_req)
677 struct mdc_open_data *mod;
678 struct obd_import *imp = open_req->rq_import;
679 struct mdt_rec_create *rec = lustre_msg_buf(open_req->rq_reqmsg,
682 struct mdt_body *body = lustre_msg_buf(open_req->rq_repmsg,
686 /* If request is not eligible for replay, just bail out */
687 if (!open_req->rq_replay)
690 /* incoming message in my byte order (it's been swabbed) */
691 LASSERT(rec != NULL);
692 LASSERT(lustre_rep_swabbed(open_req, DLM_REPLY_REC_OFF));
693 /* outgoing messages always in my byte order */
694 LASSERT(body != NULL);
696 /* Only if the import is replayable, we set replay_open data */
697 if (och && imp->imp_replayable) {
700 DEBUG_REQ(D_ERROR, open_req,
701 "can't allocate mdc_open_data");
705 spin_lock(&open_req->rq_lock);
708 mod->mod_open_req = open_req;
709 open_req->rq_cb_data = mod;
710 open_req->rq_commit_cb = mdc_commit_open;
711 spin_unlock(&open_req->rq_lock);
714 rec->cr_fid2 = body->fid1;
715 rec->cr_ioepoch = body->ioepoch;
716 rec->cr_old_handle.cookie = body->handle.cookie;
717 open_req->rq_replay_cb = mdc_replay_open;
718 if (!fid_is_sane(&body->fid1)) {
719 DEBUG_REQ(D_ERROR, open_req, "saving replay request with "
724 DEBUG_REQ(D_RPCTRACE, open_req, "set up replay data");
727 static void mdc_set_open_replay_data_18(struct obd_client_handle *och,
728 struct ptlrpc_request *open_req)
730 struct mdc_open_data *mod;
731 struct mds_rec_create *rec = lustre_msg_buf(open_req->rq_reqmsg,
734 struct mds_body *body = lustre_msg_buf(open_req->rq_repmsg,
738 /* If request is not eligible for replay, just bail out */
739 if (!open_req->rq_replay)
742 /* incoming message in my byte order (it's been swabbed) */
743 LASSERT(rec != NULL);
744 LASSERT(lustre_rep_swabbed(open_req, DLM_REPLY_REC_OFF));
745 /* outgoing messages always in my byte order */
746 LASSERT(body != NULL);
749 OBD_ALLOC(mod, sizeof(*mod));
751 DEBUG_REQ(D_ERROR, open_req, "can't allocate mdc_open_data");
755 spin_lock(&open_req->rq_lock);
758 mod->mod_open_req = open_req;
759 open_req->rq_cb_data = mod;
760 open_req->rq_commit_cb = mdc_commit_open;
761 spin_unlock(&open_req->rq_lock);
764 memcpy(&rec->cr_replayfid, &body->fid1, sizeof rec->cr_replayfid);
765 open_req->rq_replay_cb = mdc_replay_open;
766 if (body->fid1.id == 0) {
767 DEBUG_REQ(D_ERROR, open_req, "saving replay request with "
768 "id = 0 gen = %u", body->fid1.generation);
772 DEBUG_REQ(D_RPCTRACE, open_req, "set up replay data");
775 void mdc_set_open_replay_data(struct obd_client_handle *och,
776 struct ptlrpc_request *open_req)
778 if (mdc_req_is_2_0_server(open_req))
779 mdc_set_open_replay_data_20(och, open_req);
781 mdc_set_open_replay_data_18(och, open_req);
784 void mdc_clear_open_replay_data(struct obd_client_handle *och)
786 struct mdc_open_data *mod = och->och_mod;
788 /* Don't free the structure now (it happens in mdc_commit_open, after
789 * we're sure we won't need to fix up the close request in the future),
790 * but make sure that replay doesn't poke at the och, which is about to
792 LASSERT(mod != LP_POISON);
798 int mdc_close(struct obd_export *exp, struct mdc_op_data *data, struct obdo *oa,
799 struct obd_client_handle *och, struct ptlrpc_request **request)
801 struct obd_device *obd = class_exp2obd(exp);
802 __u32 reqsize[4] = { sizeof(struct ptlrpc_body),
803 sizeof(struct mdt_body) };
804 __u32 repsize[6] = { sizeof(struct ptlrpc_body),
805 sizeof(struct mdt_body),
806 obd->u.cli.cl_max_mds_easize,
807 obd->u.cli.cl_max_mds_cookiesize,
808 sizeof(struct lustre_capa),
809 sizeof(struct lustre_capa) };
811 struct ptlrpc_request *req;
815 if (mdc_exp_is_2_0_server(exp)) {
816 reqsize[1] = sizeof(struct mdt_epoch);
817 reqsize[2] = sizeof(struct mdt_rec_create);
818 reqsize[3] = 0; /* capa */
821 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
822 MDS_CLOSE, bufcount, reqsize, NULL);
824 GOTO(out, rc = -ENOMEM);
825 req->rq_export = class_export_get(exp);
827 /* To avoid a livelock (bug 7034), we need to send CLOSE RPCs to a
828 * portal whose threads are not taking any DLM locks and are therefore
829 * always progressing */
830 req->rq_request_portal = MDS_READPAGE_PORTAL;
831 ptlrpc_at_set_req_timeout(req);
833 /* Ensure that this close's handle is fixed up during replay. */
834 LASSERT(och != NULL);
835 LASSERT(och->och_magic == OBD_CLIENT_HANDLE_MAGIC);
836 if (likely(och->och_mod != NULL)) {
837 struct ptlrpc_request *open_req = och->och_mod->mod_open_req;
839 if (open_req->rq_type == LI_POISON) {
840 CERROR("LBUG POISONED open %p!\n", open_req);
842 ptlrpc_req_finished(req);
844 GOTO(out, rc = -EIO);
846 och->och_mod->mod_close_req = req;
847 DEBUG_REQ(D_RPCTRACE, req, "close req");
848 DEBUG_REQ(D_RPCTRACE, open_req, "clear open replay");
850 /* We no longer want to preserve this open for replay even
851 * though the open was committed. b=3632, b=3633 */
852 spin_lock(&open_req->rq_lock);
853 open_req->rq_replay = 0;
854 spin_unlock(&open_req->rq_lock);
856 CDEBUG(D_RPCTRACE, "couldn't find open req; expecting error\n");
859 mdc_close_pack(req, REQ_REC_OFF, data, oa, oa->o_valid, och);
861 ptlrpc_req_set_repsize(req, 6, repsize);
863 mdc_get_rpc_lock(obd->u.cli.cl_close_lock, NULL);
864 rc = ptlrpc_queue_wait(req);
865 mdc_put_rpc_lock(obd->u.cli.cl_close_lock, NULL);
867 if (req->rq_repmsg == NULL) {
868 CDEBUG(D_RPCTRACE, "request failed to send: %p, %d\n", req,
871 rc = req->rq_status ? req->rq_status : -EIO;
872 } else if (rc == 0) {
873 rc = lustre_msg_get_status(req->rq_repmsg);
874 if (lustre_msg_get_type(req->rq_repmsg) == PTL_RPC_MSG_ERR) {
875 DEBUG_REQ(D_ERROR, req, "type == PTL_RPC_MSG_ERR, err "
881 if (!lustre_swab_repbuf(req, REPLY_REC_OFF,
882 sizeof(struct mds_body),
883 lustre_swab_mds_body)) {
884 CERROR("Error unpacking mds_body\n");
892 if (rc != 0 && och->och_mod)
893 och->och_mod->mod_close_req = NULL;
898 int mdc_done_writing(struct obd_export *exp, struct mdc_op_data *data,
901 struct ptlrpc_request *req;
902 struct mds_body *body;
903 __u32 size[2] = { sizeof(struct ptlrpc_body),
904 sizeof(struct mdt_body) };
908 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
909 MDS_DONE_WRITING, 2, size, NULL);
913 req->rq_export = class_export_get(exp);
914 body = lustre_msg_buf(req->rq_reqmsg, REQ_REC_OFF, sizeof(*body));
915 body->fid1 = data->fid1;
916 body->size = obdo->o_size;
917 body->blocks = obdo->o_blocks;
918 body->flags = obdo->o_flags;
919 body->valid = obdo->o_valid;
920 // memcpy(&body->handle, &och->och_fh, sizeof(body->handle));
922 ptlrpc_req_set_repsize(req, 2, size);
924 rc = ptlrpc_queue_wait(req);
925 ptlrpc_req_finished(req);
929 int mdc_readpage(struct obd_export *exp, struct ll_fid *fid, __u64 offset,
930 struct page *page, struct ptlrpc_request **request)
932 struct obd_import *imp = class_exp2cliimp(exp);
933 struct ptlrpc_request *req = NULL;
934 struct ptlrpc_bulk_desc *desc = NULL;
935 struct mds_body *body;
936 __u32 size[2] = { sizeof(struct ptlrpc_body),
937 sizeof(struct mdt_body) };
941 CDEBUG(D_INODE, "inode: "LPU64"\n", fid->id);
943 req = ptlrpc_prep_req(imp, LUSTRE_MDS_VERSION, MDS_READPAGE, 2, size,
946 GOTO(out, rc = -ENOMEM);
948 req->rq_export = class_export_get(exp);
949 req->rq_request_portal = MDS_READPAGE_PORTAL;
950 ptlrpc_at_set_req_timeout(req);
952 desc = ptlrpc_prep_bulk_imp(req, 1, BULK_PUT_SINK, MDS_BULK_PORTAL);
954 GOTO(out, rc = -ENOMEM);
955 /* NB req now owns desc and will free it when it gets freed */
957 ptlrpc_prep_bulk_page(desc, page, 0, CFS_PAGE_SIZE);
959 mdc_readdir_pack(req, REQ_REC_OFF, offset, CFS_PAGE_SIZE, fid);
961 ptlrpc_req_set_repsize(req, 2, size);
962 rc = ptlrpc_queue_wait(req);
965 body = lustre_swab_repbuf(req, REPLY_REC_OFF, sizeof(*body),
966 lustre_swab_mds_body);
968 CERROR("Can't unpack mds_body\n");
969 GOTO(out, rc = -EPROTO);
972 if (req->rq_bulk->bd_nob_transferred != CFS_PAGE_SIZE) {
973 CERROR ("Unexpected # bytes transferred: %d"
975 req->rq_bulk->bd_nob_transferred,
977 GOTO (out, rc = -EPROTO);
988 static int mdc_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
989 void *karg, void *uarg)
991 struct obd_device *obd = exp->exp_obd;
992 struct obd_ioctl_data *data = karg;
993 struct obd_import *imp = obd->u.cli.cl_import;
994 struct llog_ctxt *ctxt;
998 if (!try_module_get(THIS_MODULE)) {
999 CERROR("Can't get module. Is it alive?");
1003 case OBD_IOC_CLIENT_RECOVER:
1004 rc = ptlrpc_recover_import(imp, data->ioc_inlbuf1);
1008 case IOC_OSC_SET_ACTIVE:
1009 rc = ptlrpc_set_import_active(imp, data->ioc_offset);
1011 case OBD_IOC_PARSE: {
1012 ctxt = llog_get_context(exp->exp_obd, LLOG_CONFIG_REPL_CTXT);
1013 rc = class_config_parse_llog(ctxt, data->ioc_inlbuf1, NULL);
1014 llog_ctxt_put(ctxt);
1018 case OBD_IOC_LLOG_INFO:
1019 case OBD_IOC_LLOG_PRINT: {
1020 ctxt = llog_get_context(obd, LLOG_CONFIG_REPL_CTXT);
1021 rc = llog_ioctl(ctxt, cmd, data);
1022 llog_ctxt_put(ctxt);
1026 case OBD_IOC_POLL_QUOTACHECK:
1027 rc = lquota_poll_check(quota_interface, exp,
1028 (struct if_quotacheck *)karg);
1030 case OBD_IOC_PING_TARGET:
1031 rc = ptlrpc_obd_ping(obd);
1034 CERROR("mdc_ioctl(): unrecognised ioctl %#x\n", cmd);
1035 GOTO(out, rc = -ENOTTY);
1038 module_put(THIS_MODULE);
1042 int mdc_set_info_async(struct obd_export *exp, obd_count keylen,
1043 void *key, obd_count vallen, void *val,
1044 struct ptlrpc_request_set *set)
1046 struct obd_import *imp = class_exp2cliimp(exp);
1049 if (KEY_IS(KEY_INIT_RECOV)) {
1050 if (vallen != sizeof(int))
1052 spin_lock(&imp->imp_lock);
1053 imp->imp_initial_recov = *(int *)val;
1054 spin_unlock(&imp->imp_lock);
1056 CDEBUG(D_HA, "%s: set imp_initial_recov = %d\n",
1057 exp->exp_obd->obd_name, imp->imp_initial_recov);
1060 /* Turn off initial_recov after we try all backup servers once */
1061 if (KEY_IS(KEY_INIT_RECOV_BACKUP)) {
1062 if (vallen != sizeof(int))
1065 spin_lock(&imp->imp_lock);
1066 imp->imp_initial_recov_bk = *(int *)val;
1067 if (imp->imp_initial_recov_bk)
1068 imp->imp_initial_recov = 1;
1069 spin_unlock(&imp->imp_lock);
1071 CDEBUG(D_HA, "%s: set imp_initial_recov_bk = %d\n",
1072 exp->exp_obd->obd_name, imp->imp_initial_recov_bk);
1075 /* Accept the broken "read-only" key for 1.6.6 servers. b=17493 */
1076 if (KEY_IS(KEY_READONLY) || KEY_IS(KEY_READONLY_166COMPAT)) {
1077 struct ptlrpc_request *req;
1078 __u32 size[3] = { sizeof(struct ptlrpc_body), keylen, vallen };
1079 char *bufs[3] = { NULL, key, val };
1081 if (vallen != sizeof(int))
1084 if (*((int *)val)) {
1085 imp->imp_connect_flags_orig |= OBD_CONNECT_RDONLY;
1086 imp->imp_connect_data.ocd_connect_flags |=
1089 imp->imp_connect_flags_orig &= ~OBD_CONNECT_RDONLY;
1090 imp->imp_connect_data.ocd_connect_flags &=
1091 ~OBD_CONNECT_RDONLY;
1094 req = ptlrpc_prep_req(imp, LUSTRE_MDS_VERSION, MDS_SET_INFO,
1099 req->rq_export = class_export_get(exp);
1100 ptlrpc_req_set_repsize(req, 1, NULL);
1103 ptlrpc_set_add_req(set, req);
1104 ptlrpc_check_set(set);
1106 rc = ptlrpc_queue_wait(req);
1107 ptlrpc_req_finished(req);
1116 int mdc_get_info(struct obd_export *exp, __u32 keylen, void *key,
1117 __u32 *vallen, void *val, struct lov_stripe_md *lsm)
1121 if (KEY_IS(KEY_MAX_EASIZE)) {
1122 int mdsize, *max_easize;
1124 if (*vallen != sizeof(int))
1126 mdsize = *(int*)val;
1127 if (mdsize > exp->exp_obd->u.cli.cl_max_mds_easize)
1128 exp->exp_obd->u.cli.cl_max_mds_easize = mdsize;
1130 *max_easize = exp->exp_obd->u.cli.cl_max_mds_easize;
1136 static int mdc_statfs(struct obd_device *obd, struct obd_statfs *osfs,
1137 __u64 max_age, __u32 flags)
1139 struct ptlrpc_request *req;
1140 struct obd_statfs *msfs;
1141 struct obd_import *imp = NULL;
1142 __u32 size[2] = { sizeof(struct ptlrpc_body), sizeof(*msfs) };
1146 /*Since the request might also come from lprocfs, so we need
1147 *sync this with client_disconnect_export Bug15684*/
1148 down_read(&obd->u.cli.cl_sem);
1149 if (obd->u.cli.cl_import)
1150 imp = class_import_get(obd->u.cli.cl_import);
1151 up_read(&obd->u.cli.cl_sem);
1156 /* We could possibly pass max_age in the request (as an absolute
1157 * timestamp or a "seconds.usec ago") so the target can avoid doing
1158 * extra calls into the filesystem if that isn't necessary (e.g.
1159 * during mount that would help a bit). Having relative timestamps
1160 * is not so great if request processing is slow, while absolute
1161 * timestamps are not ideal because they need time synchronization. */
1162 req = ptlrpc_prep_req(imp, LUSTRE_MDS_VERSION, MDS_STATFS, 1, NULL,
1165 GOTO(output, rc = -ENOMEM);
1167 ptlrpc_req_set_repsize(req, 2, size);
1169 if (flags & OBD_STATFS_NODELAY) {
1170 /* procfs requests not want stay in wait for avoid deadlock */
1171 req->rq_no_resend = 1;
1172 req->rq_no_delay = 1;
1175 rc = ptlrpc_queue_wait(req);
1180 msfs = lustre_swab_repbuf(req, REPLY_REC_OFF, sizeof(*msfs),
1181 lustre_swab_obd_statfs);
1183 CERROR("Can't unpack obd_statfs\n");
1184 GOTO(out, rc = -EPROTO);
1187 memcpy(osfs, msfs, sizeof(*msfs));
1190 ptlrpc_req_finished(req);
1192 class_import_put(imp);
1196 static int mdc_pin(struct obd_export *exp, struct ll_fid *fid,
1197 struct obd_client_handle *handle, int flag)
1199 struct ptlrpc_request *req;
1200 struct mds_body *body;
1201 __u32 size[3] = { sizeof(struct ptlrpc_body),
1202 sizeof(struct mdt_body), 0 };
1207 if (mdc_exp_is_2_0_server(exp))
1209 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
1210 MDS_PIN, bufcount, size, NULL);
1214 req->rq_export = class_export_get(exp);
1215 body = lustre_msg_buf(req->rq_reqmsg, REQ_REC_OFF, sizeof(*body));
1219 ptlrpc_req_set_repsize(req, 2, size);
1221 mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
1222 rc = ptlrpc_queue_wait(req);
1223 mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
1225 CERROR("pin failed: %d\n", rc);
1226 ptlrpc_req_finished(req);
1230 body = lustre_swab_repbuf(req, REPLY_REC_OFF, sizeof(*body),
1231 lustre_swab_mds_body);
1233 ptlrpc_req_finished(req);
1237 memcpy(&handle->och_fh, &body->handle, sizeof(body->handle));
1238 handle->och_magic = OBD_CLIENT_HANDLE_MAGIC;
1240 OBD_ALLOC(handle->och_mod, sizeof(*handle->och_mod));
1241 if (handle->och_mod == NULL) {
1242 DEBUG_REQ(D_ERROR, req, "can't allocate mdc_open_data");
1245 handle->och_mod->mod_open_req = req; /* will be dropped by unpin */
1250 static int mdc_unpin(struct obd_export *exp,
1251 struct obd_client_handle *handle, int flag)
1253 struct ptlrpc_request *req;
1254 struct mds_body *body;
1255 __u32 size[2] = { sizeof(struct ptlrpc_body),
1256 sizeof(struct mdt_body) };
1260 if (handle->och_magic != OBD_CLIENT_HANDLE_MAGIC)
1263 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
1264 MDS_CLOSE, 2, size, NULL);
1268 req->rq_export = class_export_get(exp);
1269 body = lustre_msg_buf(req->rq_reqmsg, REQ_REC_OFF, sizeof(*body));
1270 memcpy(&body->handle, &handle->och_fh, sizeof(body->handle));
1273 ptlrpc_req_set_repsize(req, 1, NULL);
1274 mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
1275 rc = ptlrpc_queue_wait(req);
1276 mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
1279 CERROR("unpin failed: %d\n", rc);
1281 ptlrpc_req_finished(req);
1282 ptlrpc_req_finished(handle->och_mod->mod_open_req);
1283 OBD_FREE(handle->och_mod, sizeof(*handle->och_mod));
1287 int mdc_sync(struct obd_export *exp, struct ll_fid *fid,
1288 struct ptlrpc_request **request)
1290 struct ptlrpc_request *req;
1291 __u32 size[3] = { sizeof(struct ptlrpc_body),
1292 sizeof(struct mdt_body), 0 };
1298 if (mdc_exp_is_2_0_server(exp))
1300 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
1301 MDS_SYNC, bufcount, size, NULL);
1303 RETURN(rc = -ENOMEM);
1305 req->rq_export = class_export_get(exp);
1306 mdc_pack_req_body(req, REQ_REC_OFF, 0, fid, 0, 0);
1308 ptlrpc_req_set_repsize(req, 2, size);
1310 rc = ptlrpc_queue_wait(req);
1311 if (rc || request == NULL)
1312 ptlrpc_req_finished(req);
1319 static int mdc_import_event(struct obd_device *obd, struct obd_import *imp,
1320 enum obd_import_event event)
1324 LASSERT(imp->imp_obd == obd);
1327 case IMP_EVENT_DISCON: {
1328 ptlrpc_import_setasync(imp, -obd->obd_namespace->ns_max_unused);
1331 case IMP_EVENT_INACTIVE: {
1332 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_INACTIVE, NULL);
1335 case IMP_EVENT_INVALIDATE: {
1336 struct ldlm_namespace *ns = obd->obd_namespace;
1338 ldlm_namespace_cleanup(ns, LDLM_FL_LOCAL_ONLY);
1342 case IMP_EVENT_ACTIVE: {
1343 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_ACTIVE, NULL);
1347 ptlrpc_import_setasync(imp, obd->obd_namespace->ns_max_unused);
1351 CERROR("Unknown import event %x\n", event);
1357 static int mdc_setup(struct obd_device *obd, obd_count len, void *buf)
1359 struct client_obd *cli = &obd->u.cli;
1360 struct lprocfs_static_vars lvars = { 0 };
1364 OBD_ALLOC(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
1365 if (!cli->cl_rpc_lock)
1367 mdc_init_rpc_lock(cli->cl_rpc_lock);
1371 OBD_ALLOC(cli->cl_setattr_lock, sizeof (*cli->cl_setattr_lock));
1372 if (!cli->cl_setattr_lock)
1373 GOTO(err_rpc_lock, rc = -ENOMEM);
1374 mdc_init_rpc_lock(cli->cl_setattr_lock);
1376 OBD_ALLOC(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
1377 if (!cli->cl_close_lock)
1378 GOTO(err_setattr_lock, rc = -ENOMEM);
1379 mdc_init_rpc_lock(cli->cl_close_lock);
1381 rc = client_obd_setup(obd, len, buf);
1383 GOTO(err_close_lock, rc);
1384 lprocfs_mdc_init_vars(&lvars);
1385 if (lprocfs_obd_setup(obd, lvars.obd_vars) == 0)
1386 ptlrpc_lprocfs_register_obd(obd);
1388 rc = obd_llog_init(obd, obd, NULL);
1391 CERROR("failed to setup llogging subsystems\n");
1397 OBD_FREE(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
1399 OBD_FREE(cli->cl_setattr_lock, sizeof (*cli->cl_setattr_lock));
1401 OBD_FREE(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
1406 /* Initialize the default and maximum LOV EA and cookie sizes. This allows
1407 * us to make MDS RPCs with large enough reply buffers to hold the
1408 * maximum-sized (= maximum striped) EA and cookie without having to
1409 * calculate this (via a call into the LOV + OSCs) each time we make an RPC. */
1410 int mdc_init_ea_size(struct obd_export *mdc_exp, struct obd_export *lov_exp)
1412 struct obd_device *obd = mdc_exp->exp_obd;
1413 struct client_obd *cli = &obd->u.cli;
1414 struct lov_stripe_md lsm = { .lsm_magic = LOV_MAGIC_V3 };
1415 struct lov_desc desc;
1416 __u32 valsize = sizeof(desc);
1421 rc = obd_get_info(lov_exp, sizeof(KEY_LOVDESC), KEY_LOVDESC,
1422 &valsize, &desc, NULL);
1426 stripes = min(desc.ld_tgt_count, (__u32)LOV_MAX_STRIPE_COUNT);
1427 lsm.lsm_stripe_count = stripes;
1428 size = obd_size_diskmd(lov_exp, &lsm);
1430 if (cli->cl_max_mds_easize < size)
1431 cli->cl_max_mds_easize = size;
1433 lsm.lsm_stripe_count = desc.ld_default_stripe_count;
1434 size = obd_size_diskmd(lov_exp, &lsm);
1436 if (cli->cl_default_mds_easize < size)
1437 cli->cl_default_mds_easize = size;
1439 size = stripes * sizeof(struct llog_cookie);
1440 if (cli->cl_max_mds_cookiesize < size)
1441 cli->cl_max_mds_cookiesize = size;
1443 CDEBUG(D_HA, "updating max_mdsize/max_cookiesize: %d/%d\n",
1444 cli->cl_max_mds_easize, cli->cl_max_mds_cookiesize);
1449 static int mdc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
1455 case OBD_CLEANUP_EARLY:
1456 case OBD_CLEANUP_EXPORTS:
1457 /* If we set up but never connected, the
1458 client import will not have been cleaned. */
1459 down_write(&obd->u.cli.cl_sem);
1460 if (obd->u.cli.cl_import) {
1461 struct obd_import *imp;
1462 imp = obd->u.cli.cl_import;
1463 CERROR("client import never connected\n");
1464 ptlrpc_invalidate_import(imp);
1465 class_destroy_import(imp);
1466 obd->u.cli.cl_import = NULL;
1468 up_write(&obd->u.cli.cl_sem);
1470 rc = obd_llog_finish(obd, 0);
1472 CERROR("failed to cleanup llogging subsystems\n");
1474 case OBD_CLEANUP_SELF_EXP:
1476 case OBD_CLEANUP_OBD:
1482 static int mdc_cleanup(struct obd_device *obd)
1484 struct client_obd *cli = &obd->u.cli;
1486 OBD_FREE(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
1487 OBD_FREE(cli->cl_setattr_lock, sizeof (*cli->cl_setattr_lock));
1488 OBD_FREE(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
1490 ptlrpc_lprocfs_unregister_obd(obd);
1491 lprocfs_obd_cleanup(obd);
1494 return client_obd_cleanup(obd);
1498 static int mdc_llog_init(struct obd_device *obd, struct obd_device *disk_obd,
1501 struct llog_ctxt *ctxt;
1505 rc = llog_setup(obd, LLOG_CONFIG_REPL_CTXT, disk_obd, 0, NULL,
1508 ctxt = llog_get_context(obd, LLOG_CONFIG_REPL_CTXT);
1509 llog_initiator_connect(ctxt);
1510 llog_ctxt_put(ctxt);
1513 rc = llog_setup(obd, LLOG_LOVEA_REPL_CTXT, disk_obd, 0, NULL,
1516 ctxt = llog_get_context(obd, LLOG_LOVEA_REPL_CTXT);
1517 llog_initiator_connect(ctxt);
1518 llog_ctxt_put(ctxt);
1520 GOTO(err_cleanup, rc);
1525 ctxt = llog_get_context(obd, LLOG_CONFIG_REPL_CTXT);
1528 ctxt = llog_get_context(obd, LLOG_LOVEA_REPL_CTXT);
1534 static int mdc_llog_finish(struct obd_device *obd, int count)
1536 struct llog_ctxt *ctxt;
1540 ctxt = llog_get_context(obd, LLOG_LOVEA_REPL_CTXT);
1542 rc = llog_cleanup(ctxt);
1544 CERROR("Can not cleanup LLOG_CONFIG_REPL_CTXT "
1548 ctxt = llog_get_context(obd, LLOG_CONFIG_REPL_CTXT);
1550 rc = llog_cleanup(ctxt);
1554 static int mdc_process_config(struct obd_device *obd, obd_count len, void *buf)
1556 struct lustre_cfg *lcfg = buf;
1557 struct lprocfs_static_vars lvars = { 0 };
1560 lprocfs_mdc_init_vars(&lvars);
1562 rc = class_process_proc_param(PARAM_MDC, lvars.obd_vars, lcfg, obd);
1566 static int mdc_fid_init(struct obd_export *exp)
1568 struct client_obd *cli;
1573 cli = &exp->exp_obd->u.cli;
1575 OBD_ALLOC_PTR(cli->cl_seq);
1576 if (cli->cl_seq == NULL)
1579 OBD_ALLOC(prefix, MAX_OBD_NAME + 5);
1581 GOTO(out_free_seq, rc = -ENOMEM);
1583 snprintf(prefix, MAX_OBD_NAME + 5, "srv-%s", exp->exp_obd->obd_name);
1585 /* Init client side sequence-manager */
1586 rc = seq_client_init(cli->cl_seq, exp,
1587 LUSTRE_SEQ_METADATA,
1588 LUSTRE_SEQ_MAX_WIDTH,
1590 OBD_FREE(prefix, MAX_OBD_NAME + 5);
1592 GOTO(out_free_seq, rc);
1597 OBD_FREE_PTR(cli->cl_seq);
1602 static int mdc_fid_fini(struct obd_export *exp)
1604 struct client_obd *cli = &exp->exp_obd->u.cli;
1607 if (cli->cl_seq != NULL) {
1608 LASSERT(cli->cl_seq->lcs_exp == exp);
1609 seq_client_fini(cli->cl_seq);
1610 OBD_FREE_PTR(cli->cl_seq);
1617 struct obd_ops mdc_obd_ops = {
1618 .o_owner = THIS_MODULE,
1619 .o_setup = mdc_setup,
1620 .o_precleanup = mdc_precleanup,
1621 .o_cleanup = mdc_cleanup,
1622 .o_add_conn = client_import_add_conn,
1623 .o_del_conn = client_import_del_conn,
1624 .o_connect = client_connect_import,
1625 .o_disconnect = client_disconnect_export,
1626 .o_fid_init = mdc_fid_init,
1627 .o_fid_fini = mdc_fid_fini,
1628 .o_iocontrol = mdc_iocontrol,
1629 .o_set_info_async = mdc_set_info_async,
1630 .o_get_info = mdc_get_info,
1631 .o_statfs = mdc_statfs,
1633 .o_unpin = mdc_unpin,
1634 .o_import_event = mdc_import_event,
1635 .o_llog_init = mdc_llog_init,
1636 .o_llog_finish = mdc_llog_finish,
1637 .o_process_config = mdc_process_config,
1640 int __init mdc_init(void)
1643 struct lprocfs_static_vars lvars = { 0 };
1644 lprocfs_mdc_init_vars(&lvars);
1645 request_module("lquota");
1646 quota_interface = PORTAL_SYMBOL_GET(mdc_quota_interface);
1647 init_obd_quota_ops(quota_interface, &mdc_obd_ops);
1649 rc = class_register_type(&mdc_obd_ops, lvars.module_vars,
1651 if (rc && quota_interface)
1652 PORTAL_SYMBOL_PUT(mdc_quota_interface);
1658 static void /*__exit*/ mdc_exit(void)
1660 if (quota_interface)
1661 PORTAL_SYMBOL_PUT(mdc_quota_interface);
1663 class_unregister_type(LUSTRE_MDC_NAME);
1666 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
1667 MODULE_DESCRIPTION("Lustre Metadata Client");
1668 MODULE_LICENSE("GPL");
1670 EXPORT_SYMBOL(mdc_req2lustre_md);
1671 EXPORT_SYMBOL(mdc_free_lustre_md);
1672 EXPORT_SYMBOL(mdc_change_cbdata);
1673 EXPORT_SYMBOL(mdc_getstatus);
1674 EXPORT_SYMBOL(mdc_getattr);
1675 EXPORT_SYMBOL(mdc_getattr_name);
1676 EXPORT_SYMBOL(mdc_create);
1677 EXPORT_SYMBOL(mdc_unlink);
1678 EXPORT_SYMBOL(mdc_rename);
1679 EXPORT_SYMBOL(mdc_link);
1680 EXPORT_SYMBOL(mdc_readpage);
1681 EXPORT_SYMBOL(mdc_setattr);
1682 EXPORT_SYMBOL(mdc_close);
1683 EXPORT_SYMBOL(mdc_done_writing);
1684 EXPORT_SYMBOL(mdc_sync);
1685 EXPORT_SYMBOL(mdc_set_open_replay_data);
1686 EXPORT_SYMBOL(mdc_clear_open_replay_data);
1687 EXPORT_SYMBOL(mdc_store_inode_generation);
1688 EXPORT_SYMBOL(mdc_init_ea_size);
1689 EXPORT_SYMBOL(mdc_getxattr);
1690 EXPORT_SYMBOL(mdc_setxattr);
1692 module_init(mdc_init);
1693 module_exit(mdc_exit);