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 mdc_update_max_ea_from_body(exp, body);
169 if (body->eadatasize != 0) {
170 /* reply indicates presence of eadata; check it's there... */
171 eadata = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF + 1,
173 if (eadata == NULL) {
174 CERROR ("Missing/short eadata\n");
182 int mdc_getattr(struct obd_export *exp, struct ll_fid *fid,
183 obd_valid valid, unsigned int ea_size,
184 struct ptlrpc_request **request)
186 struct ptlrpc_request *req;
187 __u32 size[2] = { sizeof(struct ptlrpc_body),
188 sizeof(struct mdt_body) };
189 int acl_size = 0, rc;
192 /* XXX do we need to make another request here? We just did a getattr
193 * to do the lookup in the first place.
195 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
196 MDS_GETATTR, 2, size, NULL);
198 GOTO(out, rc = -ENOMEM);
200 req->rq_export = class_export_get(exp);
201 mdc_pack_req_body(req, REQ_REC_OFF, valid, fid, ea_size,
202 MDS_BFLAG_EXT_FLAGS/*request "new" flags(bug 9486)*/);
204 /* currently only root inode will call us with FLACL */
205 if (valid & OBD_MD_FLACL)
206 acl_size = LUSTRE_POSIX_ACL_MAX_SIZE;
208 rc = mdc_getattr_common(exp, ea_size, acl_size, req);
210 ptlrpc_req_finished (req);
218 int mdc_getattr_name(struct obd_export *exp, struct ll_fid *fid,
219 const char *filename, int namelen, unsigned long valid,
220 unsigned int ea_size, struct ptlrpc_request **request)
222 struct ptlrpc_request *req;
223 __u32 size[4] = { [MSG_PTLRPC_BODY_OFF] = sizeof(struct ptlrpc_body),
224 [REQ_REC_OFF] = sizeof(struct mdt_body),
225 [REQ_REC_OFF + 1] = namelen };
228 int nameoffset = REQ_REC_OFF + 1;
231 if (mdc_exp_is_2_0_server(exp)) {
232 size[REQ_REC_OFF + 1] = 0;
233 size[REQ_REC_OFF + 2] = namelen;
238 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
239 MDS_GETATTR_NAME, bufcount, size, NULL);
241 GOTO(out, rc = -ENOMEM);
243 req->rq_export = class_export_get(exp);
244 mdc_pack_req_body(req, REQ_REC_OFF, valid, fid, ea_size,
245 MDS_BFLAG_EXT_FLAGS/*request "new" flags(bug 9486)*/);
247 LASSERT(strnlen(filename, namelen) == namelen - 1);
248 memcpy(lustre_msg_buf(req->rq_reqmsg, nameoffset, namelen),
251 rc = mdc_getattr_common(exp, ea_size, 0, req);
253 ptlrpc_req_finished (req);
262 int mdc_xattr_common(struct obd_export *exp, struct ll_fid *fid,
263 int opcode, obd_valid valid, const char *xattr_name,
264 const char *input, int input_size, int output_size,
265 int flags, struct ptlrpc_request **request)
267 struct obd_device *obddev = class_exp2obd(exp);
268 struct ptlrpc_request *req;
269 __u32 size[5] = { [MSG_PTLRPC_BODY_OFF] = sizeof(struct ptlrpc_body),
270 [REQ_REC_OFF] = sizeof(struct mdt_body),
271 [REQ_REC_OFF + 1] = 0, /* capa */
272 [REQ_REC_OFF + 2] = 0, /* name */
273 [REQ_REC_OFF + 3] = 0 };
274 int rc, xattr_namelen = 0, bufcnt = 2, offset = REQ_REC_OFF + 1;
278 if (mdc_exp_is_2_0_server(exp)) {
281 if (opcode == MDS_SETXATTR) {
282 size[REQ_REC_OFF] = sizeof (struct mdt_rec_setxattr);
288 xattr_namelen = strlen(xattr_name) + 1;
289 size[bufcnt++] = xattr_namelen;
293 size[bufcnt++] = input_size;
296 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
297 opcode, bufcnt, size, NULL);
299 GOTO(out, rc = -ENOMEM);
301 req->rq_export = class_export_get(exp);
303 if (opcode == MDS_REINT && mdc_exp_is_2_0_server(exp)) {
304 struct mdt_rec_setxattr *rec;
305 rec = lustre_msg_buf(req->rq_reqmsg, REQ_REC_OFF,
306 sizeof(struct mdt_rec_setxattr));
307 rec->sx_opcode = REINT_SETXATTR;
308 rec->sx_fsuid = cfs_curproc_fsuid();
309 rec->sx_fsgid = cfs_curproc_fsgid();
310 rec->sx_cap = cfs_curproc_cap_pack();
311 rec->sx_suppgid1 = -1;
312 rec->sx_suppgid2 = -1;
313 rec->sx_fid = *((struct lu_fid*)fid);
314 rec->sx_valid = valid;
315 rec->sx_size = output_size;
316 rec->sx_flags = flags;
319 mdc_pack_req_body(req, REQ_REC_OFF, valid, fid, output_size, flags);
323 tmp = lustre_msg_buf(req->rq_reqmsg, offset++, xattr_namelen);
324 memcpy(tmp, xattr_name, xattr_namelen);
327 tmp = lustre_msg_buf(req->rq_reqmsg, offset++, input_size);
328 memcpy(tmp, input, input_size);
331 size[REPLY_REC_OFF] = sizeof(struct mdt_body);
332 if (mdc_exp_is_2_0_server(exp)) {
336 if (opcode == MDS_GETXATTR) {
344 /* we do this even output_size is 0, because server is doing that */
345 size[bufcnt++] = output_size;
346 ptlrpc_req_set_repsize(req, bufcnt, size);
349 if (opcode == MDS_SETXATTR || opcode == MDS_REINT)
350 mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
352 mdc_enter_request(&obddev->u.cli);
354 rc = ptlrpc_queue_wait(req);
356 if (opcode == MDS_SETXATTR || opcode == MDS_REINT)
357 mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
359 mdc_exit_request(&obddev->u.cli);
364 if (opcode == MDS_GETXATTR) {
365 struct mds_body * body = lustre_swab_repbuf(req, REPLY_REC_OFF,
367 lustre_swab_mds_body);
369 CERROR ("Can't unpack mds_body\n");
370 GOTO(err_out, rc = -EPROTO);
377 ptlrpc_req_finished(req);
382 int mdc_setxattr(struct obd_export *exp, struct ll_fid *fid,
383 obd_valid valid, const char *xattr_name,
384 const char *input, int input_size,
385 int output_size, int flags,
386 struct ptlrpc_request **request)
388 return mdc_xattr_common(exp, fid, MDS_SETXATTR, valid, xattr_name,
389 input, input_size, output_size, flags, request);
392 int mdc_getxattr(struct obd_export *exp, struct ll_fid *fid,
393 obd_valid valid, const char *xattr_name,
394 const char *input, int input_size,
395 int output_size, struct ptlrpc_request **request)
397 return mdc_xattr_common(exp, fid, MDS_GETXATTR, valid, xattr_name,
398 input, input_size, output_size, 0, request);
401 /* For the fid-less server */
402 static void mdc_store_inode_generation_18(struct ptlrpc_request *req,
403 int reqoff, int repoff)
405 struct mds_rec_create *rec = lustre_msg_buf(req->rq_reqmsg, reqoff,
407 struct mds_body *body = lustre_msg_buf(req->rq_repmsg, repoff,
410 LASSERT (rec != NULL);
411 LASSERT (body != NULL);
413 memcpy(&rec->cr_replayfid, &body->fid1, sizeof rec->cr_replayfid);
414 if (body->fid1.id == 0) {
415 DEBUG_REQ(D_ERROR, req, "saving replay request with id = 0 "
416 "gen = %u", body->fid1.generation);
420 DEBUG_REQ(D_INODE, req, "storing generation %u for ino "LPU64,
421 rec->cr_replayfid.generation, rec->cr_replayfid.id);
424 static void mdc_store_inode_generation_20(struct ptlrpc_request *req,
425 int reqoff, int repoff)
427 struct mdt_rec_create *rec = lustre_msg_buf(req->rq_reqmsg, reqoff,
429 struct mdt_body *body = lustre_msg_buf(req->rq_repmsg, repoff,
432 LASSERT (rec != NULL);
433 LASSERT (body != NULL);
435 rec->cr_fid2 = body->fid1;
436 rec->cr_ioepoch = body->ioepoch;
437 rec->cr_old_handle.cookie = body->handle.cookie;
439 if (!fid_is_sane(&body->fid1)) {
440 DEBUG_REQ(D_ERROR, req, "saving replay request with"
445 DEBUG_REQ(D_INODE, req, "storing generation %u for ino "LPU64,
446 rec->cr_fid1.f_oid, rec->cr_fid2.f_seq);
449 /* This should be called with both the request and the reply still packed. */
450 void mdc_store_inode_generation(struct ptlrpc_request *req, int reqoff,
453 if (mdc_req_is_2_0_server(req))
454 mdc_store_inode_generation_20(req, reqoff, repoff);
456 mdc_store_inode_generation_18(req, reqoff, repoff);
459 #ifdef CONFIG_FS_POSIX_ACL
461 int mdc_unpack_acl(struct obd_export *exp, struct ptlrpc_request *req,
462 struct lustre_md *md, unsigned int offset)
464 struct mds_body *body = md->body;
465 struct posix_acl *acl;
472 buf = lustre_msg_buf(req->rq_repmsg, offset, body->aclsize);
474 CERROR("aclsize %u, bufcount %u, bufsize %u\n",
475 body->aclsize, lustre_msg_bufcount(req->rq_repmsg),
476 (lustre_msg_bufcount(req->rq_repmsg) <= offset) ?
477 -1 : lustre_msg_buflen(req->rq_repmsg, offset));
481 acl = posix_acl_from_xattr(buf, body->aclsize);
484 CERROR("convert xattr to acl: %d\n", rc);
488 rc = posix_acl_valid(acl);
490 CERROR("validate acl: %d\n", rc);
491 posix_acl_release(acl);
499 #define mdc_unpack_acl(exp, req, md, offset) 0
502 int mdc_req2lustre_md(struct ptlrpc_request *req, int offset,
503 struct obd_export *exp,
504 struct lustre_md *md)
507 int iop = mdc_req_is_2_0_server(req);
511 memset(md, 0, sizeof(*md));
513 md->body = lustre_msg_buf(req->rq_repmsg, offset, sizeof (*md->body));
514 LASSERT (md->body != NULL);
515 LASSERT(lustre_rep_swabbed(req, offset));
518 if (md->body->valid & OBD_MD_FLEASIZE) {
520 struct lov_mds_md *lmm;
522 if (!S_ISREG(md->body->mode)) {
523 CERROR("OBD_MD_FLEASIZE set, should be a regular file, "
525 GOTO(err_out, rc = -EPROTO);
528 if (md->body->eadatasize == 0) {
529 CERROR ("OBD_MD_FLEASIZE set, but eadatasize 0\n");
530 GOTO(err_out, rc = -EPROTO);
532 lmmsize = md->body->eadatasize;
533 lmm = lustre_msg_buf(req->rq_repmsg, offset, lmmsize);
535 CERROR ("incorrect message: lmm == 0\n");
536 GOTO(err_out, rc = -EPROTO);
538 LASSERT(lustre_rep_swabbed(req, offset));
540 rc = obd_unpackmd(exp, &md->lsm, lmm, lmmsize);
544 if (rc < sizeof(*md->lsm)) {
545 CERROR ("lsm size too small: rc < sizeof (*md->lsm) "
546 "(%d < %d)\n", rc, (int)sizeof(*md->lsm));
547 GOTO(err_out, rc = -EPROTO);
553 } else if (md->body->valid & OBD_MD_FLDIREA) {
554 if(!S_ISDIR(md->body->mode)) {
555 CERROR("OBD_MD_FLDIREA set, should be a directory, but "
557 GOTO(err_out, rc = -EPROTO);
565 /* for ACL, it's possible that FLACL is set but aclsize is zero.
566 * only when aclsize != 0 there's an actual segment for ACL in
569 if ((md->body->valid & OBD_MD_FLACL) && md->body->aclsize) {
570 rc = mdc_unpack_acl(exp, req, md, offset);
580 obd_free_memmd(exp, &md->lsm);
584 void mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md)
587 obd_free_memmd(exp, &md->lsm);
589 #ifdef CONFIG_FS_POSIX_ACL
591 posix_acl_release(md->posix_acl);
592 md->posix_acl = NULL;
597 static void mdc_commit_open(struct ptlrpc_request *req)
599 struct mdc_open_data *mod = req->rq_cb_data;
603 if (mod->mod_och != NULL)
604 mod->mod_och->och_mod = NULL;
607 req->rq_cb_data = NULL;
610 static void mdc_replay_open(struct ptlrpc_request *req)
612 struct mdc_open_data *mod = req->rq_cb_data;
613 struct obd_client_handle *och;
614 struct ptlrpc_request *close_req;
615 struct lustre_handle old;
616 struct mds_body *body;
619 body = lustre_swab_repbuf(req, DLM_REPLY_REC_OFF, sizeof(*body),
620 lustre_swab_mds_body);
621 LASSERT (body != NULL);
624 DEBUG_REQ(D_ERROR, req,
625 "can't properly replay without open data");
629 DEBUG_REQ(D_HA, req, "mdc open data found");
633 struct lustre_handle *file_fh;
634 LASSERT(och->och_magic == OBD_CLIENT_HANDLE_MAGIC);
635 file_fh = &och->och_fh;
636 CDEBUG(D_RPCTRACE, "updating handle from "LPX64" to "LPX64"\n",
637 file_fh->cookie, body->handle.cookie);
639 *file_fh = body->handle;
642 close_req = mod->mod_close_req;
644 if (close_req != NULL) {
645 LASSERT(lustre_msg_get_opc(close_req->rq_reqmsg) == MDS_CLOSE);
646 if (mdc_req_is_2_0_server(close_req)) {
647 struct mdt_epoch *epoch = NULL;
649 epoch = lustre_msg_buf(close_req->rq_reqmsg,
650 REQ_REC_OFF, sizeof(*epoch));
653 LASSERT(!memcmp(&old, &epoch->handle,
655 DEBUG_REQ(D_RPCTRACE, close_req,
656 "updating close with new fh");
657 epoch->handle = body->handle;
659 struct mds_body *close_body = NULL;
661 close_body = lustre_msg_buf(close_req->rq_reqmsg,
663 sizeof(*close_body));
665 LASSERT(!memcmp(&old, &close_body->handle,
667 DEBUG_REQ(D_RPCTRACE, close_req,
668 "updating close with new fh");
669 close_body->handle = body->handle;
676 static void mdc_set_open_replay_data_20(struct obd_client_handle *och,
677 struct ptlrpc_request *open_req)
679 struct mdc_open_data *mod;
680 struct obd_import *imp = open_req->rq_import;
681 struct mdt_rec_create *rec = lustre_msg_buf(open_req->rq_reqmsg,
684 struct mdt_body *body = lustre_msg_buf(open_req->rq_repmsg,
688 /* If request is not eligible for replay, just bail out */
689 if (!open_req->rq_replay)
692 /* incoming message in my byte order (it's been swabbed) */
693 LASSERT(rec != NULL);
694 LASSERT(lustre_rep_swabbed(open_req, DLM_REPLY_REC_OFF));
695 /* outgoing messages always in my byte order */
696 LASSERT(body != NULL);
698 /* Only if the import is replayable, we set replay_open data */
699 if (och && imp->imp_replayable) {
702 DEBUG_REQ(D_ERROR, open_req,
703 "can't allocate mdc_open_data");
707 spin_lock(&open_req->rq_lock);
710 mod->mod_open_req = open_req;
711 open_req->rq_cb_data = mod;
712 open_req->rq_commit_cb = mdc_commit_open;
713 spin_unlock(&open_req->rq_lock);
716 rec->cr_fid2 = body->fid1;
717 rec->cr_ioepoch = body->ioepoch;
718 rec->cr_old_handle.cookie = body->handle.cookie;
719 open_req->rq_replay_cb = mdc_replay_open;
720 if (!fid_is_sane(&body->fid1)) {
721 DEBUG_REQ(D_ERROR, open_req, "saving replay request with "
726 DEBUG_REQ(D_RPCTRACE, open_req, "set up replay data");
729 static void mdc_set_open_replay_data_18(struct obd_client_handle *och,
730 struct ptlrpc_request *open_req)
732 struct mdc_open_data *mod;
733 struct mds_rec_create *rec = lustre_msg_buf(open_req->rq_reqmsg,
736 struct mds_body *body = lustre_msg_buf(open_req->rq_repmsg,
740 /* If request is not eligible for replay, just bail out */
741 if (!open_req->rq_replay)
744 /* incoming message in my byte order (it's been swabbed) */
745 LASSERT(rec != NULL);
746 LASSERT(lustre_rep_swabbed(open_req, DLM_REPLY_REC_OFF));
747 /* outgoing messages always in my byte order */
748 LASSERT(body != NULL);
751 OBD_ALLOC(mod, sizeof(*mod));
753 DEBUG_REQ(D_ERROR, open_req, "can't allocate mdc_open_data");
757 spin_lock(&open_req->rq_lock);
760 mod->mod_open_req = open_req;
761 open_req->rq_cb_data = mod;
762 open_req->rq_commit_cb = mdc_commit_open;
763 spin_unlock(&open_req->rq_lock);
766 memcpy(&rec->cr_replayfid, &body->fid1, sizeof rec->cr_replayfid);
767 open_req->rq_replay_cb = mdc_replay_open;
768 if (body->fid1.id == 0) {
769 DEBUG_REQ(D_ERROR, open_req, "saving replay request with "
770 "id = 0 gen = %u", body->fid1.generation);
774 DEBUG_REQ(D_RPCTRACE, open_req, "set up replay data");
777 void mdc_set_open_replay_data(struct obd_client_handle *och,
778 struct ptlrpc_request *open_req)
780 if (mdc_req_is_2_0_server(open_req))
781 mdc_set_open_replay_data_20(och, open_req);
783 mdc_set_open_replay_data_18(och, open_req);
786 void mdc_clear_open_replay_data(struct obd_client_handle *och)
788 struct mdc_open_data *mod = och->och_mod;
790 /* Don't free the structure now (it happens in mdc_commit_open, after
791 * we're sure we won't need to fix up the close request in the future),
792 * but make sure that replay doesn't poke at the och, which is about to
794 LASSERT(mod != LP_POISON);
800 int mdc_close(struct obd_export *exp, struct mdc_op_data *data, struct obdo *oa,
801 struct obd_client_handle *och, struct ptlrpc_request **request)
803 struct obd_device *obd = class_exp2obd(exp);
804 __u32 reqsize[4] = { sizeof(struct ptlrpc_body),
805 sizeof(struct mdt_body) };
806 __u32 repsize[6] = { sizeof(struct ptlrpc_body),
807 sizeof(struct mdt_body),
808 obd->u.cli.cl_max_mds_easize,
809 obd->u.cli.cl_max_mds_cookiesize,
810 sizeof(struct lustre_capa),
811 sizeof(struct lustre_capa) };
813 struct ptlrpc_request *req;
817 if (mdc_exp_is_2_0_server(exp)) {
818 reqsize[1] = sizeof(struct mdt_epoch);
819 reqsize[2] = sizeof(struct mdt_rec_create);
820 reqsize[3] = 0; /* capa */
823 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
824 MDS_CLOSE, bufcount, reqsize, NULL);
826 GOTO(out, rc = -ENOMEM);
827 req->rq_export = class_export_get(exp);
829 /* To avoid a livelock (bug 7034), we need to send CLOSE RPCs to a
830 * portal whose threads are not taking any DLM locks and are therefore
831 * always progressing */
832 req->rq_request_portal = MDS_READPAGE_PORTAL;
833 ptlrpc_at_set_req_timeout(req);
835 /* Ensure that this close's handle is fixed up during replay. */
836 LASSERT(och != NULL);
837 LASSERT(och->och_magic == OBD_CLIENT_HANDLE_MAGIC);
838 if (likely(och->och_mod != NULL)) {
839 struct ptlrpc_request *open_req = och->och_mod->mod_open_req;
841 if (open_req->rq_type == LI_POISON) {
842 CERROR("LBUG POISONED open %p!\n", open_req);
844 ptlrpc_req_finished(req);
846 GOTO(out, rc = -EIO);
848 och->och_mod->mod_close_req = req;
849 DEBUG_REQ(D_RPCTRACE, req, "close req");
850 DEBUG_REQ(D_RPCTRACE, open_req, "clear open replay");
852 /* We no longer want to preserve this open for replay even
853 * though the open was committed. b=3632, b=3633 */
854 spin_lock(&open_req->rq_lock);
855 open_req->rq_replay = 0;
856 spin_unlock(&open_req->rq_lock);
858 CDEBUG(D_RPCTRACE, "couldn't find open req; expecting error\n");
861 mdc_close_pack(req, REQ_REC_OFF, data, oa, oa->o_valid, och);
863 ptlrpc_req_set_repsize(req, 6, repsize);
865 mdc_get_rpc_lock(obd->u.cli.cl_close_lock, NULL);
866 rc = ptlrpc_queue_wait(req);
867 mdc_put_rpc_lock(obd->u.cli.cl_close_lock, NULL);
869 if (req->rq_repmsg == NULL) {
870 CDEBUG(D_RPCTRACE, "request failed to send: %p, %d\n", req,
873 rc = req->rq_status ? req->rq_status : -EIO;
874 } else if (rc == 0) {
875 rc = lustre_msg_get_status(req->rq_repmsg);
876 if (lustre_msg_get_type(req->rq_repmsg) == PTL_RPC_MSG_ERR) {
877 DEBUG_REQ(D_ERROR, req, "type == PTL_RPC_MSG_ERR, err "
883 if (!lustre_swab_repbuf(req, REPLY_REC_OFF,
884 sizeof(struct mds_body),
885 lustre_swab_mds_body)) {
886 CERROR("Error unpacking mds_body\n");
894 if (rc != 0 && och->och_mod)
895 och->och_mod->mod_close_req = NULL;
900 int mdc_done_writing(struct obd_export *exp, struct mdc_op_data *data,
903 struct ptlrpc_request *req;
904 struct mds_body *body;
905 __u32 size[2] = { sizeof(struct ptlrpc_body),
906 sizeof(struct mdt_body) };
910 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
911 MDS_DONE_WRITING, 2, size, NULL);
915 req->rq_export = class_export_get(exp);
916 body = lustre_msg_buf(req->rq_reqmsg, REQ_REC_OFF, sizeof(*body));
917 body->fid1 = data->fid1;
918 body->size = obdo->o_size;
919 body->blocks = obdo->o_blocks;
920 body->flags = obdo->o_flags;
921 body->valid = obdo->o_valid;
922 // memcpy(&body->handle, &och->och_fh, sizeof(body->handle));
924 ptlrpc_req_set_repsize(req, 2, size);
926 rc = ptlrpc_queue_wait(req);
927 ptlrpc_req_finished(req);
931 int mdc_readpage(struct obd_export *exp, struct ll_fid *fid, __u64 offset,
932 struct page *page, struct ptlrpc_request **request)
934 struct obd_import *imp = class_exp2cliimp(exp);
935 struct ptlrpc_request *req = NULL;
936 struct ptlrpc_bulk_desc *desc = NULL;
937 struct mds_body *body;
938 __u32 size[2] = { sizeof(struct ptlrpc_body),
939 sizeof(struct mdt_body) };
943 CDEBUG(D_INODE, "inode: "LPU64"\n", fid->id);
945 req = ptlrpc_prep_req(imp, LUSTRE_MDS_VERSION, MDS_READPAGE, 2, size,
948 GOTO(out, rc = -ENOMEM);
950 req->rq_export = class_export_get(exp);
951 req->rq_request_portal = MDS_READPAGE_PORTAL;
952 ptlrpc_at_set_req_timeout(req);
954 desc = ptlrpc_prep_bulk_imp(req, 1, BULK_PUT_SINK, MDS_BULK_PORTAL);
956 GOTO(out, rc = -ENOMEM);
957 /* NB req now owns desc and will free it when it gets freed */
959 ptlrpc_prep_bulk_page(desc, page, 0, CFS_PAGE_SIZE);
961 mdc_readdir_pack(req, REQ_REC_OFF, offset, CFS_PAGE_SIZE, fid);
963 ptlrpc_req_set_repsize(req, 2, size);
964 rc = ptlrpc_queue_wait(req);
967 body = lustre_swab_repbuf(req, REPLY_REC_OFF, sizeof(*body),
968 lustre_swab_mds_body);
970 CERROR("Can't unpack mds_body\n");
971 GOTO(out, rc = -EPROTO);
974 if (req->rq_bulk->bd_nob_transferred != CFS_PAGE_SIZE) {
975 CERROR ("Unexpected # bytes transferred: %d"
977 req->rq_bulk->bd_nob_transferred,
979 GOTO (out, rc = -EPROTO);
990 static int mdc_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
991 void *karg, void *uarg)
993 struct obd_device *obd = exp->exp_obd;
994 struct obd_ioctl_data *data = karg;
995 struct obd_import *imp = obd->u.cli.cl_import;
996 struct llog_ctxt *ctxt;
1000 if (!try_module_get(THIS_MODULE)) {
1001 CERROR("Can't get module. Is it alive?");
1005 case OBD_IOC_CLIENT_RECOVER:
1006 rc = ptlrpc_recover_import(imp, data->ioc_inlbuf1);
1010 case IOC_OSC_SET_ACTIVE:
1011 rc = ptlrpc_set_import_active(imp, data->ioc_offset);
1013 case OBD_IOC_PARSE: {
1014 ctxt = llog_get_context(exp->exp_obd, LLOG_CONFIG_REPL_CTXT);
1015 rc = class_config_parse_llog(ctxt, data->ioc_inlbuf1, NULL);
1016 llog_ctxt_put(ctxt);
1020 case OBD_IOC_LLOG_INFO:
1021 case OBD_IOC_LLOG_PRINT: {
1022 ctxt = llog_get_context(obd, LLOG_CONFIG_REPL_CTXT);
1023 rc = llog_ioctl(ctxt, cmd, data);
1024 llog_ctxt_put(ctxt);
1028 case OBD_IOC_POLL_QUOTACHECK:
1029 rc = lquota_poll_check(quota_interface, exp,
1030 (struct if_quotacheck *)karg);
1032 case OBD_IOC_PING_TARGET:
1033 rc = ptlrpc_obd_ping(obd);
1036 CERROR("mdc_ioctl(): unrecognised ioctl %#x\n", cmd);
1037 GOTO(out, rc = -ENOTTY);
1040 module_put(THIS_MODULE);
1044 int mdc_set_info_async(struct obd_export *exp, obd_count keylen,
1045 void *key, obd_count vallen, void *val,
1046 struct ptlrpc_request_set *set)
1048 struct obd_import *imp = class_exp2cliimp(exp);
1051 if (KEY_IS(KEY_INIT_RECOV)) {
1052 if (vallen != sizeof(int))
1054 spin_lock(&imp->imp_lock);
1055 imp->imp_initial_recov = *(int *)val;
1056 spin_unlock(&imp->imp_lock);
1058 CDEBUG(D_HA, "%s: set imp_initial_recov = %d\n",
1059 exp->exp_obd->obd_name, imp->imp_initial_recov);
1062 /* Turn off initial_recov after we try all backup servers once */
1063 if (KEY_IS(KEY_INIT_RECOV_BACKUP)) {
1064 if (vallen != sizeof(int))
1067 spin_lock(&imp->imp_lock);
1068 imp->imp_initial_recov_bk = *(int *)val;
1069 if (imp->imp_initial_recov_bk)
1070 imp->imp_initial_recov = 1;
1071 spin_unlock(&imp->imp_lock);
1073 CDEBUG(D_HA, "%s: set imp_initial_recov_bk = %d\n",
1074 exp->exp_obd->obd_name, imp->imp_initial_recov_bk);
1077 /* Accept the broken "read-only" key for 1.6.6 servers. b=17493 */
1078 if (KEY_IS(KEY_READONLY) || KEY_IS(KEY_READONLY_166COMPAT)) {
1079 struct ptlrpc_request *req;
1080 __u32 size[3] = { sizeof(struct ptlrpc_body), keylen, vallen };
1081 char *bufs[3] = { NULL, key, val };
1083 if (vallen != sizeof(int))
1086 if (*((int *)val)) {
1087 imp->imp_connect_flags_orig |= OBD_CONNECT_RDONLY;
1088 imp->imp_connect_data.ocd_connect_flags |=
1091 imp->imp_connect_flags_orig &= ~OBD_CONNECT_RDONLY;
1092 imp->imp_connect_data.ocd_connect_flags &=
1093 ~OBD_CONNECT_RDONLY;
1096 req = ptlrpc_prep_req(imp, LUSTRE_MDS_VERSION, MDS_SET_INFO,
1101 req->rq_export = class_export_get(exp);
1102 ptlrpc_req_set_repsize(req, 1, NULL);
1105 ptlrpc_set_add_req(set, req);
1106 ptlrpc_check_set(set);
1108 rc = ptlrpc_queue_wait(req);
1109 ptlrpc_req_finished(req);
1118 int mdc_get_info(struct obd_export *exp, __u32 keylen, void *key,
1119 __u32 *vallen, void *val, struct lov_stripe_md *lsm)
1123 if (KEY_IS(KEY_MAX_EASIZE)) {
1124 int mdsize, *max_easize;
1126 if (*vallen != sizeof(int))
1128 mdsize = *(int*)val;
1129 if (mdsize > exp->exp_obd->u.cli.cl_max_mds_easize)
1130 exp->exp_obd->u.cli.cl_max_mds_easize = mdsize;
1132 *max_easize = exp->exp_obd->u.cli.cl_max_mds_easize;
1138 static int mdc_statfs(struct obd_device *obd, struct obd_statfs *osfs,
1139 __u64 max_age, __u32 flags)
1141 struct ptlrpc_request *req;
1142 struct obd_statfs *msfs;
1143 struct obd_import *imp = NULL;
1144 __u32 size[2] = { sizeof(struct ptlrpc_body), sizeof(*msfs) };
1148 /*Since the request might also come from lprocfs, so we need
1149 *sync this with client_disconnect_export Bug15684*/
1150 down_read(&obd->u.cli.cl_sem);
1151 if (obd->u.cli.cl_import)
1152 imp = class_import_get(obd->u.cli.cl_import);
1153 up_read(&obd->u.cli.cl_sem);
1158 /* We could possibly pass max_age in the request (as an absolute
1159 * timestamp or a "seconds.usec ago") so the target can avoid doing
1160 * extra calls into the filesystem if that isn't necessary (e.g.
1161 * during mount that would help a bit). Having relative timestamps
1162 * is not so great if request processing is slow, while absolute
1163 * timestamps are not ideal because they need time synchronization. */
1164 req = ptlrpc_prep_req(imp, LUSTRE_MDS_VERSION, MDS_STATFS, 1, NULL,
1167 GOTO(output, rc = -ENOMEM);
1169 ptlrpc_req_set_repsize(req, 2, size);
1171 if (flags & OBD_STATFS_NODELAY) {
1172 /* procfs requests not want stay in wait for avoid deadlock */
1173 req->rq_no_resend = 1;
1174 req->rq_no_delay = 1;
1177 rc = ptlrpc_queue_wait(req);
1182 msfs = lustre_swab_repbuf(req, REPLY_REC_OFF, sizeof(*msfs),
1183 lustre_swab_obd_statfs);
1185 CERROR("Can't unpack obd_statfs\n");
1186 GOTO(out, rc = -EPROTO);
1189 memcpy(osfs, msfs, sizeof(*msfs));
1192 ptlrpc_req_finished(req);
1194 class_import_put(imp);
1198 static int mdc_pin(struct obd_export *exp, struct ll_fid *fid,
1199 struct obd_client_handle *handle, int flag)
1201 struct ptlrpc_request *req;
1202 struct mds_body *body;
1203 __u32 size[3] = { sizeof(struct ptlrpc_body),
1204 sizeof(struct mdt_body), 0 };
1209 if (mdc_exp_is_2_0_server(exp))
1211 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
1212 MDS_PIN, bufcount, size, NULL);
1216 req->rq_export = class_export_get(exp);
1217 body = lustre_msg_buf(req->rq_reqmsg, REQ_REC_OFF, sizeof(*body));
1221 ptlrpc_req_set_repsize(req, 2, size);
1223 mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
1224 rc = ptlrpc_queue_wait(req);
1225 mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
1227 CERROR("pin failed: %d\n", rc);
1228 ptlrpc_req_finished(req);
1232 body = lustre_swab_repbuf(req, REPLY_REC_OFF, sizeof(*body),
1233 lustre_swab_mds_body);
1235 ptlrpc_req_finished(req);
1239 memcpy(&handle->och_fh, &body->handle, sizeof(body->handle));
1240 handle->och_magic = OBD_CLIENT_HANDLE_MAGIC;
1242 OBD_ALLOC(handle->och_mod, sizeof(*handle->och_mod));
1243 if (handle->och_mod == NULL) {
1244 DEBUG_REQ(D_ERROR, req, "can't allocate mdc_open_data");
1247 handle->och_mod->mod_open_req = req; /* will be dropped by unpin */
1252 static int mdc_unpin(struct obd_export *exp,
1253 struct obd_client_handle *handle, int flag)
1255 struct ptlrpc_request *req;
1256 struct mds_body *body;
1257 __u32 size[2] = { sizeof(struct ptlrpc_body),
1258 sizeof(struct mdt_body) };
1262 if (handle->och_magic != OBD_CLIENT_HANDLE_MAGIC)
1265 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
1266 MDS_CLOSE, 2, size, NULL);
1270 req->rq_export = class_export_get(exp);
1271 body = lustre_msg_buf(req->rq_reqmsg, REQ_REC_OFF, sizeof(*body));
1272 memcpy(&body->handle, &handle->och_fh, sizeof(body->handle));
1275 ptlrpc_req_set_repsize(req, 1, NULL);
1276 mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
1277 rc = ptlrpc_queue_wait(req);
1278 mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
1281 CERROR("unpin failed: %d\n", rc);
1283 ptlrpc_req_finished(req);
1284 ptlrpc_req_finished(handle->och_mod->mod_open_req);
1285 OBD_FREE(handle->och_mod, sizeof(*handle->och_mod));
1289 int mdc_sync(struct obd_export *exp, struct ll_fid *fid,
1290 struct ptlrpc_request **request)
1292 struct ptlrpc_request *req;
1293 __u32 size[3] = { sizeof(struct ptlrpc_body),
1294 sizeof(struct mdt_body), 0 };
1300 if (mdc_exp_is_2_0_server(exp))
1302 req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
1303 MDS_SYNC, bufcount, size, NULL);
1305 RETURN(rc = -ENOMEM);
1307 req->rq_export = class_export_get(exp);
1308 mdc_pack_req_body(req, REQ_REC_OFF, 0, fid, 0, 0);
1310 ptlrpc_req_set_repsize(req, 2, size);
1312 rc = ptlrpc_queue_wait(req);
1313 if (rc || request == NULL)
1314 ptlrpc_req_finished(req);
1321 static int mdc_import_event(struct obd_device *obd, struct obd_import *imp,
1322 enum obd_import_event event)
1326 LASSERT(imp->imp_obd == obd);
1329 case IMP_EVENT_DISCON: {
1330 ptlrpc_import_setasync(imp, -obd->obd_namespace->ns_max_unused);
1333 case IMP_EVENT_INACTIVE: {
1334 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_INACTIVE, NULL);
1337 case IMP_EVENT_INVALIDATE: {
1338 struct ldlm_namespace *ns = obd->obd_namespace;
1340 ldlm_namespace_cleanup(ns, LDLM_FL_LOCAL_ONLY);
1344 case IMP_EVENT_ACTIVE: {
1345 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_ACTIVE, NULL);
1349 ptlrpc_import_setasync(imp, obd->obd_namespace->ns_max_unused);
1353 CERROR("Unknown import event %x\n", event);
1359 /* determine whether the lock can be canceled before replaying it during
1360 * recovery, non zero value will be return if the lock can be canceled,
1361 * or zero returned for not */
1362 static int mdc_cancel_for_recovery(struct ldlm_lock *lock)
1364 if (lock->l_resource->lr_type != LDLM_IBITS)
1367 /* FIXME: if we ever get into a situation where there are too many
1368 * opened files with open locks on a single node, then we really
1369 * should replay these open locks to reget it */
1370 if (lock->l_policy_data.l_inodebits.bits & MDS_INODELOCK_OPEN)
1376 static int mdc_setup(struct obd_device *obd, obd_count len, void *buf)
1378 struct client_obd *cli = &obd->u.cli;
1379 struct lprocfs_static_vars lvars = { 0 };
1383 OBD_ALLOC(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
1384 if (!cli->cl_rpc_lock)
1386 mdc_init_rpc_lock(cli->cl_rpc_lock);
1390 OBD_ALLOC(cli->cl_setattr_lock, sizeof (*cli->cl_setattr_lock));
1391 if (!cli->cl_setattr_lock)
1392 GOTO(err_rpc_lock, rc = -ENOMEM);
1393 mdc_init_rpc_lock(cli->cl_setattr_lock);
1395 OBD_ALLOC(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
1396 if (!cli->cl_close_lock)
1397 GOTO(err_setattr_lock, rc = -ENOMEM);
1398 mdc_init_rpc_lock(cli->cl_close_lock);
1400 rc = client_obd_setup(obd, len, buf);
1402 GOTO(err_close_lock, rc);
1403 lprocfs_mdc_init_vars(&lvars);
1404 if (lprocfs_obd_setup(obd, lvars.obd_vars) == 0)
1405 ptlrpc_lprocfs_register_obd(obd);
1407 ns_register_cancel(obd->obd_namespace, mdc_cancel_for_recovery);
1409 rc = obd_llog_init(obd, obd, NULL);
1412 CERROR("failed to setup llogging subsystems\n");
1418 OBD_FREE(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
1420 OBD_FREE(cli->cl_setattr_lock, sizeof (*cli->cl_setattr_lock));
1422 OBD_FREE(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
1427 /* Initialize the default and maximum LOV EA and cookie sizes. This allows
1428 * us to make MDS RPCs with large enough reply buffers to hold the
1429 * maximum-sized (= maximum striped) EA and cookie without having to
1430 * calculate this (via a call into the LOV + OSCs) each time we make an RPC. */
1431 int mdc_init_ea_size(struct obd_export *mdc_exp, struct obd_export *lov_exp)
1433 struct obd_device *obd = mdc_exp->exp_obd;
1434 struct client_obd *cli = &obd->u.cli;
1435 struct lov_stripe_md lsm = { .lsm_magic = LOV_MAGIC_V3 };
1436 struct lov_desc desc;
1437 __u32 valsize = sizeof(desc);
1442 rc = obd_get_info(lov_exp, sizeof(KEY_LOVDESC), KEY_LOVDESC,
1443 &valsize, &desc, NULL);
1447 stripes = min(desc.ld_tgt_count, (__u32)LOV_MAX_STRIPE_COUNT);
1448 lsm.lsm_stripe_count = stripes;
1449 size = obd_size_diskmd(lov_exp, &lsm);
1451 if (cli->cl_max_mds_easize < size)
1452 cli->cl_max_mds_easize = size;
1454 lsm.lsm_stripe_count = desc.ld_default_stripe_count;
1455 size = obd_size_diskmd(lov_exp, &lsm);
1457 if (cli->cl_default_mds_easize < size)
1458 cli->cl_default_mds_easize = size;
1460 size = stripes * sizeof(struct llog_cookie);
1461 if (cli->cl_max_mds_cookiesize < size)
1462 cli->cl_max_mds_cookiesize = size;
1464 CDEBUG(D_HA, "updating max_mdsize/max_cookiesize: %d/%d\n",
1465 cli->cl_max_mds_easize, cli->cl_max_mds_cookiesize);
1470 static int mdc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
1476 case OBD_CLEANUP_EARLY:
1477 case OBD_CLEANUP_EXPORTS:
1478 /* If we set up but never connected, the
1479 client import will not have been cleaned. */
1480 down_write(&obd->u.cli.cl_sem);
1481 if (obd->u.cli.cl_import) {
1482 struct obd_import *imp;
1483 imp = obd->u.cli.cl_import;
1484 CERROR("client import never connected\n");
1485 ptlrpc_invalidate_import(imp);
1486 class_destroy_import(imp);
1487 obd->u.cli.cl_import = NULL;
1489 up_write(&obd->u.cli.cl_sem);
1491 rc = obd_llog_finish(obd, 0);
1493 CERROR("failed to cleanup llogging subsystems\n");
1495 case OBD_CLEANUP_SELF_EXP:
1497 case OBD_CLEANUP_OBD:
1503 static int mdc_cleanup(struct obd_device *obd)
1505 struct client_obd *cli = &obd->u.cli;
1507 OBD_FREE(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
1508 OBD_FREE(cli->cl_setattr_lock, sizeof (*cli->cl_setattr_lock));
1509 OBD_FREE(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
1511 ptlrpc_lprocfs_unregister_obd(obd);
1512 lprocfs_obd_cleanup(obd);
1515 return client_obd_cleanup(obd);
1519 static int mdc_llog_init(struct obd_device *obd, struct obd_device *disk_obd,
1522 struct llog_ctxt *ctxt;
1526 rc = llog_setup(obd, LLOG_CONFIG_REPL_CTXT, disk_obd, 0, NULL,
1529 ctxt = llog_get_context(obd, LLOG_CONFIG_REPL_CTXT);
1530 llog_initiator_connect(ctxt);
1531 llog_ctxt_put(ctxt);
1534 rc = llog_setup(obd, LLOG_LOVEA_REPL_CTXT, disk_obd, 0, NULL,
1537 ctxt = llog_get_context(obd, LLOG_LOVEA_REPL_CTXT);
1538 llog_initiator_connect(ctxt);
1539 llog_ctxt_put(ctxt);
1541 GOTO(err_cleanup, rc);
1546 ctxt = llog_get_context(obd, LLOG_CONFIG_REPL_CTXT);
1549 ctxt = llog_get_context(obd, LLOG_LOVEA_REPL_CTXT);
1555 static int mdc_llog_finish(struct obd_device *obd, int count)
1557 struct llog_ctxt *ctxt;
1561 ctxt = llog_get_context(obd, LLOG_LOVEA_REPL_CTXT);
1563 rc = llog_cleanup(ctxt);
1565 CERROR("Can not cleanup LLOG_CONFIG_REPL_CTXT "
1569 ctxt = llog_get_context(obd, LLOG_CONFIG_REPL_CTXT);
1571 rc = llog_cleanup(ctxt);
1575 static int mdc_process_config(struct obd_device *obd, obd_count len, void *buf)
1577 struct lustre_cfg *lcfg = buf;
1578 struct lprocfs_static_vars lvars = { 0 };
1581 lprocfs_mdc_init_vars(&lvars);
1583 rc = class_process_proc_param(PARAM_MDC, lvars.obd_vars, lcfg, obd);
1587 static int mdc_fid_init(struct obd_export *exp)
1589 struct client_obd *cli;
1594 cli = &exp->exp_obd->u.cli;
1596 OBD_ALLOC_PTR(cli->cl_seq);
1597 if (cli->cl_seq == NULL)
1600 OBD_ALLOC(prefix, MAX_OBD_NAME + 5);
1602 GOTO(out_free_seq, rc = -ENOMEM);
1604 snprintf(prefix, MAX_OBD_NAME + 5, "srv-%s", exp->exp_obd->obd_name);
1606 /* Init client side sequence-manager */
1607 rc = seq_client_init(cli->cl_seq, exp,
1608 LUSTRE_SEQ_METADATA,
1609 LUSTRE_SEQ_MAX_WIDTH,
1611 OBD_FREE(prefix, MAX_OBD_NAME + 5);
1613 GOTO(out_free_seq, rc);
1618 OBD_FREE_PTR(cli->cl_seq);
1623 static int mdc_fid_fini(struct obd_export *exp)
1625 struct client_obd *cli = &exp->exp_obd->u.cli;
1628 if (cli->cl_seq != NULL) {
1629 LASSERT(cli->cl_seq->lcs_exp == exp);
1630 seq_client_fini(cli->cl_seq);
1631 OBD_FREE_PTR(cli->cl_seq);
1638 struct obd_ops mdc_obd_ops = {
1639 .o_owner = THIS_MODULE,
1640 .o_setup = mdc_setup,
1641 .o_precleanup = mdc_precleanup,
1642 .o_cleanup = mdc_cleanup,
1643 .o_add_conn = client_import_add_conn,
1644 .o_del_conn = client_import_del_conn,
1645 .o_connect = client_connect_import,
1646 .o_disconnect = client_disconnect_export,
1647 .o_fid_init = mdc_fid_init,
1648 .o_fid_fini = mdc_fid_fini,
1649 .o_iocontrol = mdc_iocontrol,
1650 .o_set_info_async = mdc_set_info_async,
1651 .o_get_info = mdc_get_info,
1652 .o_statfs = mdc_statfs,
1654 .o_unpin = mdc_unpin,
1655 .o_import_event = mdc_import_event,
1656 .o_llog_init = mdc_llog_init,
1657 .o_llog_finish = mdc_llog_finish,
1658 .o_process_config = mdc_process_config,
1661 int __init mdc_init(void)
1664 struct lprocfs_static_vars lvars = { 0 };
1665 lprocfs_mdc_init_vars(&lvars);
1666 request_module("lquota");
1667 quota_interface = PORTAL_SYMBOL_GET(mdc_quota_interface);
1668 init_obd_quota_ops(quota_interface, &mdc_obd_ops);
1670 rc = class_register_type(&mdc_obd_ops, lvars.module_vars,
1672 if (rc && quota_interface)
1673 PORTAL_SYMBOL_PUT(mdc_quota_interface);
1679 static void /*__exit*/ mdc_exit(void)
1681 if (quota_interface)
1682 PORTAL_SYMBOL_PUT(mdc_quota_interface);
1684 class_unregister_type(LUSTRE_MDC_NAME);
1687 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
1688 MODULE_DESCRIPTION("Lustre Metadata Client");
1689 MODULE_LICENSE("GPL");
1691 EXPORT_SYMBOL(mdc_req2lustre_md);
1692 EXPORT_SYMBOL(mdc_free_lustre_md);
1693 EXPORT_SYMBOL(mdc_change_cbdata);
1694 EXPORT_SYMBOL(mdc_find_cbdata);
1695 EXPORT_SYMBOL(mdc_getstatus);
1696 EXPORT_SYMBOL(mdc_getattr);
1697 EXPORT_SYMBOL(mdc_getattr_name);
1698 EXPORT_SYMBOL(mdc_create);
1699 EXPORT_SYMBOL(mdc_unlink);
1700 EXPORT_SYMBOL(mdc_rename);
1701 EXPORT_SYMBOL(mdc_link);
1702 EXPORT_SYMBOL(mdc_readpage);
1703 EXPORT_SYMBOL(mdc_setattr);
1704 EXPORT_SYMBOL(mdc_close);
1705 EXPORT_SYMBOL(mdc_done_writing);
1706 EXPORT_SYMBOL(mdc_sync);
1707 EXPORT_SYMBOL(mdc_set_open_replay_data);
1708 EXPORT_SYMBOL(mdc_clear_open_replay_data);
1709 EXPORT_SYMBOL(mdc_store_inode_generation);
1710 EXPORT_SYMBOL(mdc_init_ea_size);
1711 EXPORT_SYMBOL(mdc_getxattr);
1712 EXPORT_SYMBOL(mdc_setxattr);
1714 module_init(mdc_init);
1715 module_exit(mdc_exit);