1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2001-2003 Cluster File Systems, Inc.
6 * This file is part of the Lustre file system, http://www.lustre.org
7 * Lustre is a trademark of Cluster File Systems, Inc.
9 * You may have signed or agreed to another license before downloading
10 * this software. If so, you are bound by the terms and conditions
11 * of that agreement, and the following does not apply to you. See the
12 * LICENSE file included with this distribution for more information.
14 * If you did not agree to a different license, then this copy of Lustre
15 * is open source software; you can redistribute it and/or modify it
16 * under the terms of version 2 of the GNU General Public License as
17 * published by the Free Software Foundation.
19 * In either case, Lustre is distributed in the hope that it will be
20 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
21 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * license text for more details.
26 # define EXPORT_SYMTAB
28 #define DEBUG_SUBSYSTEM S_MDC
31 # include <linux/module.h>
32 # include <linux/pagemap.h>
33 # include <linux/miscdevice.h>
34 # include <linux/init.h>
36 # include <liblustre.h>
39 #include <linux/lustre_acl.h>
40 #include <obd_class.h>
41 #include <lustre_dlm.h>
42 #include <lustre_fid.h>
43 #include <md_object.h>
44 #include <lprocfs_status.h>
45 #include <lustre_param.h>
46 #include "mdc_internal.h"
48 static quota_interface_t *quota_interface;
50 #define REQUEST_MINOR 244
52 static quota_interface_t *quota_interface;
53 extern quota_interface_t mdc_quota_interface;
55 static int mdc_cleanup(struct obd_device *obd);
57 static struct obd_capa *mdc_unpack_capa(struct ptlrpc_request *req,
58 const struct req_msg_field *field)
60 struct lustre_capa *capa;
63 /* swabbed already in mdc_enqueue */
64 capa = req_capsule_server_get(&req->rq_pill, field);
66 return ERR_PTR(-EPROTO);
68 oc = alloc_capa(CAPA_SITE_CLIENT);
70 CDEBUG(D_INFO, "alloc capa failed!\n");
71 return ERR_PTR(-ENOMEM);
78 /* Helper that implements most of mdc_getstatus and signal_completed_replay. */
79 /* XXX this should become mdc_get_info("key"), sending MDS_GET_INFO RPC */
80 static int send_getstatus(struct obd_import *imp, struct lu_fid *rootfid,
81 struct obd_capa **pc, int level, int msg_flags)
83 struct ptlrpc_request *req;
84 struct mdt_body *body;
88 req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_GETSTATUS,
89 LUSTRE_MDS_VERSION, MDS_GETSTATUS);
93 mdc_pack_body(req, NULL, NULL, 0, 0, -1, 0);
94 lustre_msg_add_flags(req->rq_reqmsg, msg_flags);
95 req->rq_send_state = level;
97 ptlrpc_request_set_replen(req);
99 rc = ptlrpc_queue_wait(req);
103 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
105 GOTO(out, rc = -EPROTO);
107 if (body->valid & OBD_MD_FLMDSCAPA) {
110 oc = mdc_unpack_capa(req, &RMF_CAPA1);
112 GOTO(out, rc = PTR_ERR(oc));
116 *rootfid = body->fid1;
118 "root fid="DFID", last_committed="LPU64", last_xid="LPU64"\n",
120 lustre_msg_get_last_committed(req->rq_repmsg),
121 lustre_msg_get_last_xid(req->rq_repmsg));
124 ptlrpc_req_finished(req);
128 /* This should be mdc_get_info("rootfid") */
129 int mdc_getstatus(struct obd_export *exp, struct lu_fid *rootfid,
130 struct obd_capa **pc)
132 return send_getstatus(class_exp2cliimp(exp), rootfid, pc,
137 * This function now is known to always saying that it will receive 4 buffers
138 * from server. Even for cases when acl_size and md_size is zero, RPC header
139 * will contain 4 fields and RPC itself will contain zero size fields. This is
140 * because mdt_getattr*() _always_ returns 4 fields, but if acl is not needed
141 * and thus zero, it shirinks it, making zero size. The same story about
142 * md_size. And this is course of problem when client waits for smaller number
143 * of fields. This issue will be fixed later when client gets aware of RPC
146 static int mdc_getattr_common(struct obd_export *exp,
147 struct ptlrpc_request *req)
149 struct req_capsule *pill = &req->rq_pill;
150 struct mdt_body *body;
155 /* Request message already built. */
156 rc = ptlrpc_queue_wait(req);
160 /* sanity check for the reply */
161 body = req_capsule_server_get(pill, &RMF_MDT_BODY);
165 CDEBUG(D_NET, "mode: %o\n", body->mode);
167 if (body->eadatasize != 0) {
168 eadata = req_capsule_server_sized_get(pill, &RMF_MDT_MD,
174 if (body->valid & OBD_MD_FLMODEASIZE) {
175 struct client_obd *cli = &exp->exp_obd->u.cli;
177 if (cli->cl_max_mds_easize < body->max_mdsize)
178 cli->cl_max_mds_easize = body->max_mdsize;
179 if (cli->cl_max_mds_cookiesize < body->max_cookiesize)
180 cli->cl_max_mds_cookiesize = body->max_cookiesize;
183 if (body->valid & OBD_MD_FLRMTPERM) {
184 struct mdt_remote_perm *perm;
186 LASSERT(client_is_remote(exp));
187 perm = req_capsule_server_swab_get(pill, &RMF_ACL,
188 lustre_swab_mdt_remote_perm);
193 if (body->valid & OBD_MD_FLMDSCAPA) {
194 struct lustre_capa *capa;
195 capa = req_capsule_server_get(pill, &RMF_CAPA1);
203 int mdc_getattr(struct obd_export *exp, const struct lu_fid *fid,
204 struct obd_capa *oc, obd_valid valid, int ea_size,
205 struct ptlrpc_request **request)
207 struct ptlrpc_request *req;
212 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_GETATTR);
216 mdc_set_capa_size(req, &RMF_CAPA1, oc);
218 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR);
220 ptlrpc_request_free(req);
224 /* MDS_BFLAG_EXT_FLAGS: request "new" flags(bug 9486) */
225 mdc_pack_body(req, fid, oc, valid, ea_size, -1, MDS_BFLAG_EXT_FLAGS);
227 req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER, ea_size);
228 if (valid & OBD_MD_FLRMTPERM) {
229 LASSERT(client_is_remote(exp));
230 req_capsule_set_size(&req->rq_pill, &RMF_ACL, RCL_SERVER,
231 sizeof(struct mdt_remote_perm));
233 ptlrpc_request_set_replen(req);
235 rc = mdc_getattr_common(exp, req);
237 ptlrpc_req_finished(req);
243 int mdc_getattr_name(struct obd_export *exp, const struct lu_fid *fid,
244 struct obd_capa *oc, const char *filename, int namelen,
245 obd_valid valid, int ea_size, __u32 suppgid,
246 struct ptlrpc_request **request)
248 struct ptlrpc_request *req;
253 req = ptlrpc_request_alloc(class_exp2cliimp(exp),
254 &RQF_MDS_GETATTR_NAME);
258 mdc_set_capa_size(req, &RMF_CAPA1, oc);
259 req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT, namelen);
261 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR_NAME);
263 ptlrpc_request_free(req);
267 /* MDS_BFLAG_EXT_FLAGS: request "new" flags(bug 9486) */
268 mdc_pack_body(req, fid, oc, valid, ea_size, suppgid,
269 MDS_BFLAG_EXT_FLAGS);
272 char *name = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
273 LASSERT(strnlen(filename, namelen) == namelen - 1);
274 memcpy(name, filename, namelen);
277 req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER, ea_size);
278 ptlrpc_request_set_replen(req);
280 rc = mdc_getattr_common(exp, req);
282 ptlrpc_req_finished(req);
288 static int mdc_is_subdir(struct obd_export *exp,
289 const struct lu_fid *pfid,
290 const struct lu_fid *cfid,
291 struct ptlrpc_request **request)
293 struct ptlrpc_request *req;
299 req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
300 &RQF_MDS_IS_SUBDIR, LUSTRE_MDS_VERSION,
305 mdc_is_subdir_pack(req, pfid, cfid, 0);
306 ptlrpc_request_set_replen(req);
308 rc = ptlrpc_queue_wait(req);
309 if (rc && rc != -EREMOTE)
310 ptlrpc_req_finished(req);
316 static int mdc_xattr_common(struct obd_export *exp,const struct req_format *fmt,
317 const struct lu_fid *fid,
318 struct obd_capa *oc, int opcode, obd_valid valid,
319 const char *xattr_name, const char *input,
320 int input_size, int output_size, int flags,
321 __u32 suppgid, struct ptlrpc_request **request)
323 struct ptlrpc_request *req;
324 int xattr_namelen = 0;
330 req = ptlrpc_request_alloc(class_exp2cliimp(exp), fmt);
334 mdc_set_capa_size(req, &RMF_CAPA1, oc);
336 xattr_namelen = strlen(xattr_name) + 1;
337 req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
342 req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_CLIENT,
346 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, opcode);
348 ptlrpc_request_free(req);
352 if (opcode == MDS_REINT) {
353 struct mdt_rec_setxattr *rec;
355 CLASSERT(sizeof(struct mdt_rec_setxattr) ==
356 sizeof(struct mdt_rec_reint));
357 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
358 rec->sx_opcode = REINT_SETXATTR;
360 * cfs_curproc_fs{u,g}id() should replace
361 * current->fs{u,g}id for portability.
363 rec->sx_fsuid = current->fsuid;
364 rec->sx_fsgid = current->fsgid;
365 rec->sx_cap = current->cap_effective;
366 rec->sx_suppgid1 = suppgid;
367 rec->sx_suppgid2 = -1;
369 rec->sx_valid = valid | OBD_MD_FLCTIME;
370 rec->sx_time = cfs_time_current_sec();
371 rec->sx_size = output_size;
372 rec->sx_flags = flags;
374 mdc_pack_capa(req, &RMF_CAPA1, oc);
376 mdc_pack_body(req, fid, oc, valid, output_size, suppgid, flags);
380 tmp = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
381 memcpy(tmp, xattr_name, xattr_namelen);
384 tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
385 memcpy(tmp, input, input_size);
388 if (req_capsule_has_field(&req->rq_pill, &RMF_EADATA, RCL_SERVER))
389 req_capsule_set_size(&req->rq_pill, &RMF_EADATA,
390 RCL_SERVER, output_size);
391 ptlrpc_request_set_replen(req);
394 if (opcode == MDS_REINT)
395 mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
397 rc = ptlrpc_queue_wait(req);
399 if (opcode == MDS_REINT)
400 mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
403 ptlrpc_req_finished(req);
409 int mdc_setxattr(struct obd_export *exp, const struct lu_fid *fid,
410 struct obd_capa *oc, obd_valid valid, const char *xattr_name,
411 const char *input, int input_size, int output_size,
412 int flags, __u32 suppgid, struct ptlrpc_request **request)
414 return mdc_xattr_common(exp, &RQF_MDS_REINT_SETXATTR,
415 fid, oc, MDS_REINT, valid, xattr_name,
416 input, input_size, output_size, flags,
420 int mdc_getxattr(struct obd_export *exp, const struct lu_fid *fid,
421 struct obd_capa *oc, obd_valid valid, const char *xattr_name,
422 const char *input, int input_size, int output_size,
423 int flags, struct ptlrpc_request **request)
425 return mdc_xattr_common(exp, &RQF_MDS_GETXATTR,
426 fid, oc, MDS_GETXATTR, valid, xattr_name,
427 input, input_size, output_size, flags,
431 #ifdef CONFIG_FS_POSIX_ACL
432 static int mdc_unpack_acl(struct ptlrpc_request *req, struct lustre_md *md)
434 struct req_capsule *pill = &req->rq_pill;
435 struct mdt_body *body = md->body;
436 struct posix_acl *acl;
444 buf = req_capsule_server_sized_get(pill, &RMF_ACL, body->aclsize);
449 acl = posix_acl_from_xattr(buf, body->aclsize);
452 CERROR("convert xattr to acl: %d\n", rc);
456 rc = posix_acl_valid(acl);
458 CERROR("validate acl: %d\n", rc);
459 posix_acl_release(acl);
467 #define mdc_unpack_acl(req, md) 0
470 int mdc_get_lustre_md(struct obd_export *exp, struct ptlrpc_request *req,
471 struct obd_export *dt_exp, struct obd_export *md_exp,
472 struct lustre_md *md)
474 struct req_capsule *pill = &req->rq_pill;
479 memset(md, 0, sizeof(*md));
481 md->body = req_capsule_server_get(pill, &RMF_MDT_BODY);
482 LASSERT(md->body != NULL);
484 if (md->body->valid & OBD_MD_FLEASIZE) {
486 struct lov_mds_md *lmm;
488 if (!S_ISREG(md->body->mode)) {
489 CDEBUG(D_INFO, "OBD_MD_FLEASIZE set, should be a "
490 "regular file, but is not\n");
491 GOTO(out, rc = -EPROTO);
494 if (md->body->eadatasize == 0) {
495 CDEBUG(D_INFO, "OBD_MD_FLEASIZE set, "
496 "but eadatasize 0\n");
497 GOTO(out, rc = -EPROTO);
499 lmmsize = md->body->eadatasize;
500 lmm = req_capsule_server_sized_get(pill, &RMF_MDT_MD, lmmsize);
502 GOTO(out, rc = -EPROTO);
504 rc = obd_unpackmd(dt_exp, &md->lsm, lmm, lmmsize);
508 if (rc < sizeof(*md->lsm)) {
509 CDEBUG(D_INFO, "lsm size too small: "
510 "rc < sizeof (*md->lsm) (%d < %d)\n",
511 rc, (int)sizeof(*md->lsm));
512 GOTO(out, rc = -EPROTO);
515 } else if (md->body->valid & OBD_MD_FLDIREA) {
517 struct lov_mds_md *lmv;
519 if(!S_ISDIR(md->body->mode)) {
520 CDEBUG(D_INFO, "OBD_MD_FLDIREA set, should be a "
521 "directory, but is not\n");
522 GOTO(out, rc = -EPROTO);
525 if (md->body->eadatasize == 0) {
526 CDEBUG(D_INFO, "OBD_MD_FLDIREA is set, "
527 "but eadatasize 0\n");
530 if (md->body->valid & OBD_MD_MEA) {
531 lmvsize = md->body->eadatasize;
532 lmv = req_capsule_server_sized_get(pill, &RMF_MDT_MD,
535 GOTO(out, rc = -EPROTO);
537 rc = obd_unpackmd(md_exp, (void *)&md->mea, lmv,
542 if (rc < sizeof(*md->mea)) {
543 CDEBUG(D_INFO, "size too small: "
544 "rc < sizeof(*md->mea) (%d < %d)\n",
545 rc, sizeof(*md->mea));
546 GOTO(out, rc = -EPROTO);
552 if (md->body->valid & OBD_MD_FLRMTPERM) {
553 /* remote permission */
554 LASSERT(client_is_remote(exp));
555 md->remote_perm = req_capsule_server_swab_get(pill, &RMF_ACL,
556 lustre_swab_mdt_remote_perm);
557 if (!md->remote_perm)
558 GOTO(out, rc = -EPROTO);
560 else if (md->body->valid & OBD_MD_FLACL) {
561 /* for ACL, it's possible that FLACL is set but aclsize is zero.
562 * only when aclsize != 0 there's an actual segment for ACL
565 if (md->body->aclsize) {
566 rc = mdc_unpack_acl(req, md);
569 #ifdef CONFIG_FS_POSIX_ACL
571 md->posix_acl = NULL;
575 if (md->body->valid & OBD_MD_FLMDSCAPA) {
576 struct obd_capa *oc = mdc_unpack_capa(req, &RMF_CAPA1);
579 GOTO(out, rc = PTR_ERR(oc));
583 if (md->body->valid & OBD_MD_FLOSSCAPA) {
584 struct obd_capa *oc = mdc_unpack_capa(req, &RMF_CAPA2);
587 GOTO(out, rc = PTR_ERR(oc));
595 free_capa(md->oss_capa);
597 free_capa(md->mds_capa);
598 #ifdef CONFIG_FS_POSIX_ACL
599 posix_acl_release(md->posix_acl);
602 obd_free_memmd(dt_exp, &md->lsm);
607 int mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md)
613 static void mdc_replay_open(struct ptlrpc_request *req)
615 struct md_open_data *mod = req->rq_cb_data;
616 struct ptlrpc_request *cur, *tmp;
617 struct obd_client_handle *och;
618 struct lustre_handle old;
619 struct mdt_body *body;
623 DEBUG_REQ(D_ERROR, req,
624 "Can't properly replay without open data.");
629 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
630 LASSERT(body != NULL);
634 struct lustre_handle *file_fh;
636 LASSERT(och->och_magic == OBD_CLIENT_HANDLE_MAGIC);
638 file_fh = &och->och_fh;
639 CDEBUG(D_HA, "updating handle from "LPX64" to "LPX64"\n",
640 file_fh->cookie, body->handle.cookie);
642 *file_fh = body->handle;
644 list_for_each_entry_safe(cur, tmp, &mod->mod_replay_list, rq_mod_list) {
645 int opc = lustre_msg_get_opc(cur->rq_reqmsg);
646 struct mdt_epoch *epoch = NULL;
648 if (opc == MDS_CLOSE || opc == MDS_DONE_WRITING) {
649 epoch = req_capsule_client_get(&cur->rq_pill,
652 DEBUG_REQ(D_HA, cur, "updating %s body with new fh",
653 opc == MDS_CLOSE ? "CLOSE" : "DONE_WRITING");
654 } else if (opc == MDS_REINT) {
655 struct mdt_rec_setattr *rec;
657 /* Check this is REINT_SETATTR. */
658 rec = req_capsule_client_get(&cur->rq_pill,
660 LASSERT(rec && rec->sa_opcode == REINT_SETATTR);
662 epoch = req_capsule_client_get(&cur->rq_pill,
665 DEBUG_REQ(D_HA, cur, "updating REINT_SETATTR body "
670 LASSERT(!memcmp(&old, &epoch->handle,
672 epoch->handle = body->handle;
678 void mdc_commit_delayed(struct ptlrpc_request *req)
680 struct md_open_data *mod = req->rq_cb_data;
681 struct ptlrpc_request *cur, *tmp;
683 DEBUG_REQ(D_HA, req, "req committed");
688 req->rq_cb_data = NULL;
689 req->rq_commit_cb = NULL;
690 list_del_init(&req->rq_mod_list);
691 if (req->rq_sequence) {
692 list_for_each_entry_safe(cur, tmp, &mod->mod_replay_list,
694 LASSERT(cur != LP_POISON);
695 LASSERT(cur->rq_type != LI_POISON);
696 DEBUG_REQ(D_HA, cur, "req balanced");
697 LASSERT(cur->rq_transno != 0);
698 LASSERT(cur->rq_import == req->rq_import);
700 /* We no longer want to preserve this for transno-
701 * unconditional replay. */
702 spin_lock(&cur->rq_lock);
704 spin_unlock(&cur->rq_lock);
708 if (list_empty(&mod->mod_replay_list)) {
709 if (mod->mod_och != NULL)
710 mod->mod_och->och_mod = NULL;
716 int mdc_set_open_replay_data(struct obd_export *exp,
717 struct obd_client_handle *och,
718 struct ptlrpc_request *open_req)
720 struct md_open_data *mod;
721 struct mdt_rec_create *rec;
722 struct mdt_body *body;
723 struct obd_import *imp = open_req->rq_import;
726 if (!open_req->rq_replay)
729 rec = req_capsule_client_get(&open_req->rq_pill, &RMF_REC_REINT);
730 body = req_capsule_server_get(&open_req->rq_pill, &RMF_MDT_BODY);
731 LASSERT(rec != NULL);
732 /* Incoming message in my byte order (it's been swabbed). */
733 /* Outgoing messages always in my byte order. */
734 LASSERT(body != NULL);
736 /* Only if the import is replayable, we set replay_open data */
737 if (och && imp->imp_replayable) {
740 DEBUG_REQ(D_ERROR, open_req,
741 "Can't allocate md_open_data");
744 CFS_INIT_LIST_HEAD(&mod->mod_replay_list);
746 spin_lock(&open_req->rq_lock);
749 open_req->rq_cb_data = mod;
750 list_add_tail(&open_req->rq_mod_list, &mod->mod_replay_list);
751 open_req->rq_commit_cb = mdc_commit_delayed;
752 spin_unlock(&open_req->rq_lock);
755 rec->cr_fid2 = body->fid1;
756 rec->cr_ioepoch = body->ioepoch;
757 rec->cr_old_handle.cookie = body->handle.cookie;
758 open_req->rq_replay_cb = mdc_replay_open;
759 if (!fid_is_sane(&body->fid1)) {
760 DEBUG_REQ(D_ERROR, open_req, "Saving replay request with "
765 DEBUG_REQ(D_RPCTRACE, open_req, "Set up open replay data");
769 int mdc_clear_open_replay_data(struct obd_export *exp,
770 struct obd_client_handle *och)
772 struct md_open_data *mod = och->och_mod;
776 * Don't free the structure now (it happens in mdc_commit_delayed(),
777 * after the last request is removed from its replay list),
778 * but make sure that replay doesn't poke at the och, which is about to
781 LASSERT(mod != LP_POISON);
789 int mdc_close(struct obd_export *exp, struct md_op_data *op_data,
790 struct md_open_data *mod, struct ptlrpc_request **request)
792 struct obd_device *obd = class_exp2obd(exp);
793 struct ptlrpc_request *req;
798 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_CLOSE);
802 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
804 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_CLOSE);
806 ptlrpc_request_free(req);
810 /* To avoid a livelock (bug 7034), we need to send CLOSE RPCs to a
811 * portal whose threads are not taking any DLM locks and are therefore
812 * always progressing */
813 /* XXX FIXME bug 249 */
814 req->rq_request_portal = MDS_READPAGE_PORTAL;
816 /* Ensure that this close's handle is fixed up during replay. */
817 if (likely(mod != NULL))
818 list_add_tail(&req->rq_mod_list, &mod->mod_replay_list);
820 CDEBUG(D_HA, "couldn't find open req; expecting close error\n");
822 mdc_close_pack(req, op_data);
824 req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
825 obd->u.cli.cl_max_mds_easize);
826 req_capsule_set_size(&req->rq_pill, &RMF_LOGCOOKIES, RCL_SERVER,
827 obd->u.cli.cl_max_mds_cookiesize);
829 ptlrpc_request_set_replen(req);
831 req->rq_commit_cb = mdc_commit_delayed;
833 LASSERT(req->rq_cb_data == NULL);
834 req->rq_cb_data = mod;
836 mdc_get_rpc_lock(obd->u.cli.cl_close_lock, NULL);
837 rc = ptlrpc_queue_wait(req);
838 mdc_put_rpc_lock(obd->u.cli.cl_close_lock, NULL);
840 if (req->rq_repmsg == NULL) {
841 CDEBUG(D_RPCTRACE, "request failed to send: %p, %d\n", req,
844 rc = req->rq_status ?: -EIO;
845 } else if (rc == 0 || rc == -EAGAIN) {
846 struct mdt_body *body;
848 rc = lustre_msg_get_status(req->rq_repmsg);
849 if (lustre_msg_get_type(req->rq_repmsg) == PTL_RPC_MSG_ERR) {
850 DEBUG_REQ(D_ERROR, req, "type == PTL_RPC_MSG_ERR, err "
854 } else if (mod == NULL) {
855 if (req->rq_import->imp_replayable)
856 CERROR("Unexpected: can't find md_open_data,"
857 "but close succeeded with replayable imp"
858 "Please tell CFS.\n");
861 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
867 if (rc != 0 && rc != -EAGAIN && req && req->rq_commit_cb)
868 req->rq_commit_cb(req);
874 int mdc_done_writing(struct obd_export *exp, struct md_op_data *op_data,
875 struct md_open_data *mod)
877 struct obd_device *obd = class_exp2obd(exp);
878 struct ptlrpc_request *req;
882 req = ptlrpc_request_alloc(class_exp2cliimp(exp),
883 &RQF_MDS_DONE_WRITING);
887 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
888 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_DONE_WRITING);
890 ptlrpc_request_free(req);
894 /* XXX: add DONE_WRITING request to och -- when Size-on-MDS
895 * recovery will be ready. */
896 mdc_close_pack(req, op_data);
897 ptlrpc_request_set_replen(req);
899 req->rq_cb_data = mod;
900 req->rq_commit_cb = mdc_commit_delayed;
901 if (likely(mod != NULL))
902 list_add_tail(&req->rq_mod_list, &mod->mod_replay_list);
904 CDEBUG(D_HA, "couldn't find open req; expecting close error\n");
906 mdc_get_rpc_lock(obd->u.cli.cl_close_lock, NULL);
907 rc = ptlrpc_queue_wait(req);
908 mdc_put_rpc_lock(obd->u.cli.cl_close_lock, NULL);
910 /* Close the open replay sequence if an error occured or no SOM
911 * attribute update is needed. */
913 ptlrpc_close_replay_seq(req);
915 if (rc && rc != -EAGAIN && req->rq_commit_cb)
916 req->rq_commit_cb(req);
918 ptlrpc_req_finished(req);
922 #ifdef HAVE_SPLIT_SUPPORT
923 int mdc_sendpage(struct obd_export *exp, const struct lu_fid *fid,
924 const struct page *page, int offset)
926 struct ptlrpc_request *req;
927 struct ptlrpc_bulk_desc *desc;
931 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_WRITEPAGE);
935 /* FIXME: capa doesn't support split yet */
936 mdc_set_capa_size(req, &RMF_CAPA1, NULL);
938 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_WRITEPAGE);
940 ptlrpc_request_free(req);
944 req->rq_request_portal = MDS_READPAGE_PORTAL;
946 desc = ptlrpc_prep_bulk_imp(req, 1, BULK_GET_SOURCE, MDS_BULK_PORTAL);
948 GOTO(out, rc = -ENOMEM);
950 /* NB req now owns desc and will free it when it gets freed. */
951 ptlrpc_prep_bulk_page(desc, (struct page *)page, 0, offset);
952 mdc_readdir_pack(req, 0, offset, fid, NULL);
954 ptlrpc_request_set_replen(req);
955 rc = ptlrpc_queue_wait(req);
958 ptlrpc_req_finished(req);
961 EXPORT_SYMBOL(mdc_sendpage);
964 int mdc_readpage(struct obd_export *exp, const struct lu_fid *fid,
965 struct obd_capa *oc, __u64 offset, struct page *page,
966 struct ptlrpc_request **request)
968 struct ptlrpc_request *req;
969 struct ptlrpc_bulk_desc *desc;
974 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_READPAGE);
978 mdc_set_capa_size(req, &RMF_CAPA1, oc);
980 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_READPAGE);
982 ptlrpc_request_free(req);
986 /* XXX FIXME bug 249 */
987 req->rq_request_portal = MDS_READPAGE_PORTAL;
988 desc = ptlrpc_prep_bulk_imp(req, 1, BULK_PUT_SINK, MDS_BULK_PORTAL);
990 ptlrpc_request_free(req);
994 /* NB req now owns desc and will free it when it gets freed */
995 ptlrpc_prep_bulk_page(desc, page, 0, CFS_PAGE_SIZE);
996 mdc_readdir_pack(req, offset, CFS_PAGE_SIZE, fid, oc);
998 ptlrpc_request_set_replen(req);
999 rc = ptlrpc_queue_wait(req);
1001 ptlrpc_req_finished(req);
1005 if (req->rq_bulk->bd_nob_transferred != CFS_PAGE_SIZE) {
1006 CERROR("Unexpected # bytes transferred: %d (%ld expected)\n",
1007 req->rq_bulk->bd_nob_transferred, CFS_PAGE_SIZE);
1008 ptlrpc_req_finished(req);
1016 static int mdc_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
1017 void *karg, void *uarg)
1019 struct obd_device *obd = exp->exp_obd;
1020 struct obd_ioctl_data *data = karg;
1021 struct obd_import *imp = obd->u.cli.cl_import;
1022 struct llog_ctxt *ctxt;
1026 if (!try_module_get(THIS_MODULE)) {
1027 CERROR("Can't get module. Is it alive?");
1031 case OBD_IOC_CLIENT_RECOVER:
1032 rc = ptlrpc_recover_import(imp, data->ioc_inlbuf1);
1036 case IOC_OSC_SET_ACTIVE:
1037 rc = ptlrpc_set_import_active(imp, data->ioc_offset);
1039 case OBD_IOC_PARSE: {
1040 ctxt = llog_get_context(exp->exp_obd, LLOG_CONFIG_REPL_CTXT);
1041 rc = class_config_parse_llog(ctxt, data->ioc_inlbuf1, NULL);
1042 llog_ctxt_put(ctxt);
1046 case OBD_IOC_LLOG_INFO:
1047 case OBD_IOC_LLOG_PRINT: {
1048 ctxt = llog_get_context(obd, LLOG_CONFIG_REPL_CTXT);
1049 rc = llog_ioctl(ctxt, cmd, data);
1050 llog_ctxt_put(ctxt);
1054 case OBD_IOC_POLL_QUOTACHECK:
1055 rc = lquota_poll_check(quota_interface, exp,
1056 (struct if_quotacheck *)karg);
1059 CERROR("mdc_ioctl(): unrecognised ioctl %#x\n", cmd);
1060 GOTO(out, rc = -ENOTTY);
1063 module_put(THIS_MODULE);
1068 static int do_set_info_async(struct obd_export *exp,
1069 obd_count keylen, void *key,
1070 obd_count vallen, void *val,
1071 struct ptlrpc_request_set *set)
1073 struct obd_import *imp = class_exp2cliimp(exp);
1074 struct ptlrpc_request *req;
1079 if (vallen != sizeof(int))
1082 spin_lock(&imp->imp_lock);
1083 if (*((int *)val)) {
1084 imp->imp_connect_flags_orig |= OBD_CONNECT_RDONLY;
1085 imp->imp_connect_data.ocd_connect_flags |= OBD_CONNECT_RDONLY;
1087 imp->imp_connect_flags_orig &= ~OBD_CONNECT_RDONLY;
1088 imp->imp_connect_data.ocd_connect_flags &= ~OBD_CONNECT_RDONLY;
1090 spin_unlock(&imp->imp_lock);
1092 req = ptlrpc_request_alloc(imp, &RQF_MDS_SET_INFO);
1096 req_capsule_set_size(&req->rq_pill, &RMF_SETINFO_KEY,
1097 RCL_CLIENT, keylen);
1098 req_capsule_set_size(&req->rq_pill, &RMF_SETINFO_VAL,
1099 RCL_CLIENT, vallen);
1100 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_SET_INFO);
1102 ptlrpc_request_free(req);
1106 tmp = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_KEY);
1107 memcpy(tmp, key, keylen);
1108 tmp = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_VAL);
1109 memcpy(tmp, val, vallen);
1111 ptlrpc_request_set_replen(req);
1114 ptlrpc_set_add_req(set, req);
1115 ptlrpc_check_set(set);
1117 rc = ptlrpc_queue_wait(req);
1118 ptlrpc_req_finished(req);
1124 int mdc_set_info_async(struct obd_export *exp,
1125 obd_count keylen, void *key,
1126 obd_count vallen, void *val,
1127 struct ptlrpc_request_set *set)
1129 struct obd_import *imp = class_exp2cliimp(exp);
1133 if (KEY_IS(KEY_INIT_RECOV)) {
1134 if (vallen != sizeof(int))
1136 spin_lock(&imp->imp_lock);
1137 imp->imp_initial_recov = *(int *)val;
1138 spin_unlock(&imp->imp_lock);
1139 CDEBUG(D_HA, "%s: set imp_initial_recov = %d\n",
1140 exp->exp_obd->obd_name, imp->imp_initial_recov);
1143 /* Turn off initial_recov after we try all backup servers once */
1144 if (KEY_IS(KEY_INIT_RECOV_BACKUP)) {
1145 if (vallen != sizeof(int))
1147 spin_lock(&imp->imp_lock);
1148 imp->imp_initial_recov_bk = *(int *)val;
1149 if (imp->imp_initial_recov_bk)
1150 imp->imp_initial_recov = 1;
1151 spin_unlock(&imp->imp_lock);
1152 CDEBUG(D_HA, "%s: set imp_initial_recov_bk = %d\n",
1153 exp->exp_obd->obd_name, imp->imp_initial_recov_bk);
1156 if (KEY_IS(KEY_READ_ONLY)) {
1157 rc = do_set_info_async(exp, keylen, key, vallen, val, set);
1160 if (KEY_IS(KEY_FLUSH_CTX)) {
1161 sptlrpc_import_flush_my_ctx(imp);
1164 if (KEY_IS(KEY_MDS_CONN)) {
1165 struct obd_import *imp = class_exp2cliimp(exp);
1167 /* mds-mds import */
1168 spin_lock(&imp->imp_lock);
1169 imp->imp_server_timeout = 1;
1170 spin_unlock(&imp->imp_lock);
1171 imp->imp_client->cli_request_portal = MDS_MDS_PORTAL;
1172 CDEBUG(D_OTHER|D_WARNING, "%s: timeout / 2\n", exp->exp_obd->obd_name);
1179 int mdc_get_info(struct obd_export *exp, __u32 keylen, void *key,
1180 __u32 *vallen, void *val)
1184 if (KEY_IS(KEY_MAX_EASIZE)) {
1185 int mdsize, *max_easize;
1187 if (*vallen != sizeof(int))
1189 mdsize = *(int*)val;
1190 if (mdsize > exp->exp_obd->u.cli.cl_max_mds_easize)
1191 exp->exp_obd->u.cli.cl_max_mds_easize = mdsize;
1193 *max_easize = exp->exp_obd->u.cli.cl_max_mds_easize;
1196 if (KEY_IS(KEY_CONN_DATA)) {
1197 struct obd_import *imp = class_exp2cliimp(exp);
1198 struct obd_connect_data *data = val;
1200 if (*vallen != sizeof(*data))
1203 *data = imp->imp_connect_data;
1210 static int mdc_statfs(struct obd_device *obd, struct obd_statfs *osfs,
1211 __u64 max_age, __u32 flags)
1213 struct ptlrpc_request *req;
1214 struct obd_statfs *msfs;
1218 req = ptlrpc_request_alloc_pack(obd->u.cli.cl_import, &RQF_MDS_STATFS,
1219 LUSTRE_MDS_VERSION, MDS_STATFS);
1223 ptlrpc_request_set_replen(req);
1225 if (flags & OBD_STATFS_NODELAY) {
1226 /* procfs requests not want stay in wait for avoid deadlock */
1227 req->rq_no_resend = 1;
1228 req->rq_no_delay = 1;
1231 rc = ptlrpc_queue_wait(req);
1233 /* check connection error first */
1234 if (obd->u.cli.cl_import->imp_connect_error)
1235 rc = obd->u.cli.cl_import->imp_connect_error;
1239 msfs = req_capsule_server_get(&req->rq_pill, &RMF_OBD_STATFS);
1241 GOTO(out, rc = -EPROTO);
1246 ptlrpc_req_finished(req);
1250 static int mdc_pin(struct obd_export *exp, const struct lu_fid *fid,
1251 struct obd_capa *oc, struct obd_client_handle *handle,
1254 struct ptlrpc_request *req;
1255 struct mdt_body *body;
1259 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_PIN);
1263 mdc_set_capa_size(req, &RMF_CAPA1, oc);
1265 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_PIN);
1267 ptlrpc_request_free(req);
1271 mdc_pack_body(req, fid, oc, 0, 0, -1, flags);
1273 ptlrpc_request_set_replen(req);
1275 mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
1276 rc = ptlrpc_queue_wait(req);
1277 mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
1279 CERROR("Pin failed: %d\n", rc);
1283 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
1285 GOTO(err_out, rc = -EPROTO);
1287 handle->och_fh = body->handle;
1288 handle->och_magic = OBD_CLIENT_HANDLE_MAGIC;
1290 OBD_ALLOC_PTR(handle->och_mod);
1291 if (handle->och_mod == NULL) {
1292 DEBUG_REQ(D_ERROR, req, "can't allocate mdc_open_data");
1293 GOTO(err_out, rc = -ENOMEM);
1295 /* will be dropped by unpin */
1296 CFS_INIT_LIST_HEAD(&handle->och_mod->mod_replay_list);
1297 list_add_tail(&req->rq_mod_list, &handle->och_mod->mod_replay_list);
1302 ptlrpc_req_finished(req);
1306 static int mdc_unpin(struct obd_export *exp, struct obd_client_handle *handle,
1309 struct ptlrpc_request *req;
1310 struct mdt_body *body;
1314 req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), &RQF_MDS_UNPIN,
1315 LUSTRE_MDS_VERSION, MDS_UNPIN);
1319 body = req_capsule_client_get(&req->rq_pill, &RMF_MDT_BODY);
1320 body->handle = handle->och_fh;
1323 ptlrpc_request_set_replen(req);
1325 mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
1326 rc = ptlrpc_queue_wait(req);
1327 mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
1330 CERROR("Unpin failed: %d\n", rc);
1332 ptlrpc_req_finished(req);
1334 LASSERT(!list_empty(&handle->och_mod->mod_replay_list));
1335 req = list_entry(handle->och_mod->mod_replay_list.next,
1336 typeof(*req), rq_mod_list);
1337 list_del_init(&req->rq_mod_list);
1338 ptlrpc_req_finished(req);
1339 LASSERT(list_empty(&handle->och_mod->mod_replay_list));
1341 OBD_FREE(handle->och_mod, sizeof(*handle->och_mod));
1345 int mdc_sync(struct obd_export *exp, const struct lu_fid *fid,
1346 struct obd_capa *oc, struct ptlrpc_request **request)
1348 struct ptlrpc_request *req;
1353 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_SYNC);
1357 mdc_set_capa_size(req, &RMF_CAPA1, oc);
1359 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_SYNC);
1361 ptlrpc_request_free(req);
1365 mdc_pack_body(req, fid, oc, 0, 0, -1, 0);
1367 ptlrpc_request_set_replen(req);
1369 rc = ptlrpc_queue_wait(req);
1371 ptlrpc_req_finished(req);
1377 static int mdc_import_event(struct obd_device *obd, struct obd_import *imp,
1378 enum obd_import_event event)
1382 LASSERT(imp->imp_obd == obd);
1385 case IMP_EVENT_DISCON: {
1387 /* XXX Pass event up to OBDs stack. used only for FLD now */
1388 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_DISCON, NULL);
1392 case IMP_EVENT_INACTIVE: {
1393 struct client_obd *cli = &obd->u.cli;
1395 * Flush current sequence to make client obtain new one
1396 * from server in case of disconnect/reconnect.
1397 * If range is already empty then no need to flush it.
1399 if (cli->cl_seq != NULL &&
1400 !range_is_exhausted(&cli->cl_seq->lcs_space)) {
1401 seq_client_flush(cli->cl_seq);
1404 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_INACTIVE, NULL);
1407 case IMP_EVENT_INVALIDATE: {
1408 struct ldlm_namespace *ns = obd->obd_namespace;
1410 ldlm_namespace_cleanup(ns, LDLM_FL_LOCAL_ONLY);
1414 case IMP_EVENT_ACTIVE: {
1415 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_ACTIVE, NULL);
1419 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_OCD, NULL);
1423 CERROR("Unknown import event %x\n", event);
1429 static int mdc_fid_init(struct obd_export *exp)
1431 struct client_obd *cli = &exp->exp_obd->u.cli;
1436 OBD_ALLOC_PTR(cli->cl_seq);
1437 if (cli->cl_seq == NULL)
1440 OBD_ALLOC(prefix, MAX_OBD_NAME + 5);
1442 GOTO(out_free_seq, rc = -ENOMEM);
1444 snprintf(prefix, MAX_OBD_NAME + 5, "srv-%s",
1445 exp->exp_obd->obd_name);
1447 /* Init client side sequence-manager */
1448 rc = seq_client_init(cli->cl_seq, exp,
1449 LUSTRE_SEQ_METADATA,
1451 OBD_FREE(prefix, MAX_OBD_NAME + 5);
1453 GOTO(out_free_seq, rc);
1457 OBD_FREE_PTR(cli->cl_seq);
1462 static int mdc_fid_fini(struct obd_export *exp)
1464 struct client_obd *cli = &exp->exp_obd->u.cli;
1467 if (cli->cl_seq != NULL) {
1468 seq_client_fini(cli->cl_seq);
1469 OBD_FREE_PTR(cli->cl_seq);
1476 int mdc_fid_alloc(struct obd_export *exp, struct lu_fid *fid,
1477 struct md_op_data *op_data)
1479 struct client_obd *cli = &exp->exp_obd->u.cli;
1480 struct lu_client_seq *seq = cli->cl_seq;
1482 RETURN(seq_client_alloc_fid(seq, fid));
1485 /* XXX This method is used only to clear current fid seq
1486 * once fld/mds insert failed */
1487 static int mdc_fid_delete(struct obd_export *exp, const struct lu_fid *fid)
1489 struct client_obd *cli = &exp->exp_obd->u.cli;
1491 seq_client_flush(cli->cl_seq);
1495 static int mdc_setup(struct obd_device *obd, struct lustre_cfg *cfg)
1497 struct client_obd *cli = &obd->u.cli;
1498 struct lprocfs_static_vars lvars = { 0 };
1502 OBD_ALLOC(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
1503 if (!cli->cl_rpc_lock)
1505 mdc_init_rpc_lock(cli->cl_rpc_lock);
1509 OBD_ALLOC(cli->cl_setattr_lock, sizeof (*cli->cl_setattr_lock));
1510 if (!cli->cl_setattr_lock)
1511 GOTO(err_rpc_lock, rc = -ENOMEM);
1512 mdc_init_rpc_lock(cli->cl_setattr_lock);
1514 OBD_ALLOC(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
1515 if (!cli->cl_close_lock)
1516 GOTO(err_setattr_lock, rc = -ENOMEM);
1517 mdc_init_rpc_lock(cli->cl_close_lock);
1519 rc = client_obd_setup(obd, cfg);
1521 GOTO(err_close_lock, rc);
1522 lprocfs_mdc_init_vars(&lvars);
1523 lprocfs_obd_setup(obd, lvars.obd_vars);
1524 sptlrpc_lprocfs_cliobd_attach(obd);
1525 ptlrpc_lprocfs_register_obd(obd);
1527 rc = obd_llog_init(obd, OBD_LLOG_GROUP, obd, 0, NULL, NULL);
1530 CERROR("failed to setup llogging subsystems\n");
1536 OBD_FREE(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
1538 OBD_FREE(cli->cl_setattr_lock, sizeof (*cli->cl_setattr_lock));
1540 OBD_FREE(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
1545 /* Initialize the default and maximum LOV EA and cookie sizes. This allows
1546 * us to make MDS RPCs with large enough reply buffers to hold the
1547 * maximum-sized (= maximum striped) EA and cookie without having to
1548 * calculate this (via a call into the LOV + OSCs) each time we make an RPC. */
1549 static int mdc_init_ea_size(struct obd_export *exp, int easize,
1550 int def_easize, int cookiesize)
1552 struct obd_device *obd = exp->exp_obd;
1553 struct client_obd *cli = &obd->u.cli;
1556 if (cli->cl_max_mds_easize < easize)
1557 cli->cl_max_mds_easize = easize;
1559 if (cli->cl_default_mds_easize < def_easize)
1560 cli->cl_default_mds_easize = def_easize;
1562 if (cli->cl_max_mds_cookiesize < cookiesize)
1563 cli->cl_max_mds_cookiesize = cookiesize;
1568 static int mdc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
1574 case OBD_CLEANUP_EARLY:
1575 case OBD_CLEANUP_EXPORTS:
1576 /* If we set up but never connected, the
1577 client import will not have been cleaned. */
1578 if (obd->u.cli.cl_import) {
1579 struct obd_import *imp;
1580 imp = obd->u.cli.cl_import;
1581 CERROR("client import never connected\n");
1582 ptlrpc_invalidate_import(imp);
1583 ptlrpc_free_rq_pool(imp->imp_rq_pool);
1584 class_destroy_import(imp);
1585 obd->u.cli.cl_import = NULL;
1588 case OBD_CLEANUP_SELF_EXP:
1589 rc = obd_llog_finish(obd, 0);
1591 CERROR("failed to cleanup llogging subsystems\n");
1592 case OBD_CLEANUP_OBD:
1598 static int mdc_cleanup(struct obd_device *obd)
1600 struct client_obd *cli = &obd->u.cli;
1602 OBD_FREE(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
1603 OBD_FREE(cli->cl_setattr_lock, sizeof (*cli->cl_setattr_lock));
1604 OBD_FREE(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
1606 ptlrpc_lprocfs_unregister_obd(obd);
1607 lprocfs_obd_cleanup(obd);
1610 return client_obd_cleanup(obd);
1614 static int mdc_llog_init(struct obd_device *obd, int group,
1615 struct obd_device *tgt, int count,
1616 struct llog_catid *logid, struct obd_uuid *uuid)
1618 struct llog_ctxt *ctxt;
1619 struct obd_llog_group *olg = &obd->obd_olg;
1623 LASSERT(group == OBD_LLOG_GROUP);
1624 LASSERT(olg->olg_group == group);
1626 rc = llog_setup(obd, olg, LLOG_LOVEA_REPL_CTXT, tgt, 0,
1627 NULL, &llog_client_ops);
1629 ctxt = llog_get_context(obd, LLOG_LOVEA_REPL_CTXT);
1630 llog_initiator_connect(ctxt);
1631 llog_ctxt_put(ctxt);
1637 static int mdc_llog_finish(struct obd_device *obd, int count)
1639 struct llog_ctxt *ctxt;
1643 ctxt = llog_get_context(obd, LLOG_LOVEA_REPL_CTXT);
1645 rc = llog_cleanup(ctxt);
1650 static int mdc_process_config(struct obd_device *obd, obd_count len, void *buf)
1652 struct lustre_cfg *lcfg = buf;
1653 struct lprocfs_static_vars lvars = { 0 };
1656 lprocfs_mdc_init_vars(&lvars);
1658 switch (lcfg->lcfg_command) {
1659 case LCFG_SPTLRPC_CONF:
1660 rc = sptlrpc_cliobd_process_config(obd, lcfg);
1663 rc = class_process_proc_param(PARAM_MDC, lvars.obd_vars,
1671 /* get remote permission for current user on fid */
1672 int mdc_get_remote_perm(struct obd_export *exp, const struct lu_fid *fid,
1673 struct obd_capa *oc, __u32 suppgid,
1674 struct ptlrpc_request **request)
1676 struct ptlrpc_request *req;
1680 LASSERT(client_is_remote(exp));
1683 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_GETATTR);
1687 mdc_set_capa_size(req, &RMF_CAPA1, oc);
1689 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR);
1691 ptlrpc_request_free(req);
1695 mdc_pack_body(req, fid, oc, OBD_MD_FLRMTPERM, 0, suppgid, 0);
1697 req_capsule_set_size(&req->rq_pill, &RMF_ACL, RCL_SERVER,
1698 sizeof(struct mdt_remote_perm));
1700 ptlrpc_request_set_replen(req);
1702 rc = ptlrpc_queue_wait(req);
1704 ptlrpc_req_finished(req);
1710 static int mdc_interpret_renew_capa(struct ptlrpc_request *req, void *unused,
1713 struct obd_capa *oc = req->rq_async_args.pointer_arg[0];
1714 renew_capa_cb_t cb = req->rq_async_args.pointer_arg[1];
1715 struct mdt_body *body = NULL;
1716 struct lustre_capa *capa;
1720 GOTO(out, capa = ERR_PTR(status));
1722 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
1724 GOTO(out, capa = ERR_PTR(-EFAULT));
1726 if ((body->valid & OBD_MD_FLOSSCAPA) == 0)
1727 GOTO(out, capa = ERR_PTR(-ENOENT));
1729 capa = req_capsule_server_get(&req->rq_pill, &RMF_CAPA2);
1731 GOTO(out, capa = ERR_PTR(-EFAULT));
1738 static int mdc_renew_capa(struct obd_export *exp, struct obd_capa *oc,
1741 struct ptlrpc_request *req;
1744 req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), &RQF_MDS_GETATTR,
1745 LUSTRE_MDS_VERSION, MDS_GETATTR);
1749 /* NB, OBD_MD_FLOSSCAPA is set here, but it doesn't necessarily mean the
1750 * capa to renew is oss capa.
1752 mdc_pack_body(req, &oc->c_capa.lc_fid, oc, OBD_MD_FLOSSCAPA, 0, -1, 0);
1753 ptlrpc_request_set_replen(req);
1755 req->rq_async_args.pointer_arg[0] = oc;
1756 req->rq_async_args.pointer_arg[1] = cb;
1757 req->rq_interpret_reply = mdc_interpret_renew_capa;
1758 ptlrpcd_add_req(req);
1762 static int mdc_connect(const struct lu_env *env,
1763 struct lustre_handle *dlm_handle,
1764 struct obd_device *obd, struct obd_uuid *cluuid,
1765 struct obd_connect_data *data,
1768 struct obd_import *imp = obd->u.cli.cl_import;
1770 /* mds-mds import features */
1771 if (data && (data->ocd_connect_flags & OBD_CONNECT_MDS_MDS)) {
1772 spin_lock(&imp->imp_lock);
1773 imp->imp_server_timeout = 1;
1774 spin_unlock(&imp->imp_lock);
1775 imp->imp_client->cli_request_portal = MDS_MDS_PORTAL;
1776 CDEBUG(D_OTHER, "%s: Set 'mds' portal and timeout\n",
1780 return client_connect_import(env, dlm_handle, obd, cluuid, data, NULL);
1783 struct obd_ops mdc_obd_ops = {
1784 .o_owner = THIS_MODULE,
1785 .o_setup = mdc_setup,
1786 .o_precleanup = mdc_precleanup,
1787 .o_cleanup = mdc_cleanup,
1788 .o_add_conn = client_import_add_conn,
1789 .o_del_conn = client_import_del_conn,
1790 .o_connect = mdc_connect,
1791 .o_disconnect = client_disconnect_export,
1792 .o_iocontrol = mdc_iocontrol,
1793 .o_set_info_async = mdc_set_info_async,
1794 .o_statfs = mdc_statfs,
1796 .o_unpin = mdc_unpin,
1797 .o_fid_init = mdc_fid_init,
1798 .o_fid_fini = mdc_fid_fini,
1799 .o_fid_alloc = mdc_fid_alloc,
1800 .o_fid_delete = mdc_fid_delete,
1801 .o_import_event = mdc_import_event,
1802 .o_llog_init = mdc_llog_init,
1803 .o_llog_finish = mdc_llog_finish,
1804 .o_get_info = mdc_get_info,
1805 .o_process_config = mdc_process_config,
1808 struct md_ops mdc_md_ops = {
1809 .m_getstatus = mdc_getstatus,
1810 .m_change_cbdata = mdc_change_cbdata,
1811 .m_close = mdc_close,
1812 .m_create = mdc_create,
1813 .m_done_writing = mdc_done_writing,
1814 .m_enqueue = mdc_enqueue,
1815 .m_getattr = mdc_getattr,
1816 .m_getattr_name = mdc_getattr_name,
1817 .m_intent_lock = mdc_intent_lock,
1819 .m_is_subdir = mdc_is_subdir,
1820 .m_rename = mdc_rename,
1821 .m_setattr = mdc_setattr,
1822 .m_setxattr = mdc_setxattr,
1823 .m_getxattr = mdc_getxattr,
1825 .m_readpage = mdc_readpage,
1826 .m_unlink = mdc_unlink,
1827 .m_cancel_unused = mdc_cancel_unused,
1828 .m_init_ea_size = mdc_init_ea_size,
1829 .m_set_lock_data = mdc_set_lock_data,
1830 .m_lock_match = mdc_lock_match,
1831 .m_get_lustre_md = mdc_get_lustre_md,
1832 .m_free_lustre_md = mdc_free_lustre_md,
1833 .m_set_open_replay_data = mdc_set_open_replay_data,
1834 .m_clear_open_replay_data = mdc_clear_open_replay_data,
1835 .m_renew_capa = mdc_renew_capa,
1836 .m_get_remote_perm = mdc_get_remote_perm,
1837 .m_intent_getattr_async = mdc_intent_getattr_async,
1838 .m_revalidate_lock = mdc_revalidate_lock
1841 extern quota_interface_t mdc_quota_interface;
1843 int __init mdc_init(void)
1846 struct lprocfs_static_vars lvars = { 0 };
1847 lprocfs_mdc_init_vars(&lvars);
1849 request_module("lquota");
1850 quota_interface = PORTAL_SYMBOL_GET(mdc_quota_interface);
1851 init_obd_quota_ops(quota_interface, &mdc_obd_ops);
1853 rc = class_register_type(&mdc_obd_ops, &mdc_md_ops, lvars.module_vars,
1854 LUSTRE_MDC_NAME, NULL);
1855 if (rc && quota_interface)
1856 PORTAL_SYMBOL_PUT(mdc_quota_interface);
1862 static void /*__exit*/ mdc_exit(void)
1864 if (quota_interface)
1865 PORTAL_SYMBOL_PUT(mdc_quota_interface);
1867 class_unregister_type(LUSTRE_MDC_NAME);
1870 MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
1871 MODULE_DESCRIPTION("Lustre Metadata Client");
1872 MODULE_LICENSE("GPL");
1874 module_init(mdc_init);
1875 module_exit(mdc_exit);