4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2012, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
37 #define DEBUG_SUBSYSTEM S_MDC
40 # include <linux/module.h>
41 # include <linux/pagemap.h>
42 # include <linux/miscdevice.h>
43 # include <linux/init.h>
45 # include <liblustre.h>
48 #include <lustre_acl.h>
49 #include <obd_class.h>
50 #include <lustre_fid.h>
51 #include <lprocfs_status.h>
52 #include <lustre_param.h>
53 #include <lustre_log.h>
55 #include "mdc_internal.h"
57 #define REQUEST_MINOR 244
59 struct mdc_renew_capa_args {
60 struct obd_capa *ra_oc;
61 renew_capa_cb_t ra_cb;
64 static int mdc_cleanup(struct obd_device *obd);
66 int mdc_unpack_capa(struct obd_export *exp, struct ptlrpc_request *req,
67 const struct req_msg_field *field, struct obd_capa **oc)
69 struct lustre_capa *capa;
73 /* swabbed already in mdc_enqueue */
74 capa = req_capsule_server_get(&req->rq_pill, field);
78 c = alloc_capa(CAPA_SITE_CLIENT);
80 CDEBUG(D_INFO, "alloc capa failed!\n");
89 static inline int mdc_queue_wait(struct ptlrpc_request *req)
91 struct client_obd *cli = &req->rq_import->imp_obd->u.cli;
94 /* mdc_enter_request() ensures that this client has no more
95 * than cl_max_rpcs_in_flight RPCs simultaneously inf light
97 rc = mdc_enter_request(cli);
101 rc = ptlrpc_queue_wait(req);
102 mdc_exit_request(cli);
107 /* Helper that implements most of mdc_getstatus and signal_completed_replay. */
108 /* XXX this should become mdc_get_info("key"), sending MDS_GET_INFO RPC */
109 static int send_getstatus(struct obd_import *imp, struct lu_fid *rootfid,
110 struct obd_capa **pc, int level, int msg_flags)
112 struct ptlrpc_request *req;
113 struct mdt_body *body;
117 req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_GETSTATUS,
118 LUSTRE_MDS_VERSION, MDS_GETSTATUS);
122 mdc_pack_body(req, NULL, NULL, 0, 0, -1, 0);
123 lustre_msg_add_flags(req->rq_reqmsg, msg_flags);
124 req->rq_send_state = level;
126 ptlrpc_request_set_replen(req);
128 rc = ptlrpc_queue_wait(req);
132 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
134 GOTO(out, rc = -EPROTO);
136 if (body->valid & OBD_MD_FLMDSCAPA) {
137 rc = mdc_unpack_capa(NULL, req, &RMF_CAPA1, pc);
142 *rootfid = body->fid1;
144 "root fid="DFID", last_committed="LPU64"\n",
146 lustre_msg_get_last_committed(req->rq_repmsg));
149 ptlrpc_req_finished(req);
153 /* This should be mdc_get_info("rootfid") */
154 int mdc_getstatus(struct obd_export *exp, struct lu_fid *rootfid,
155 struct obd_capa **pc)
157 return send_getstatus(class_exp2cliimp(exp), rootfid, pc,
162 * This function now is known to always saying that it will receive 4 buffers
163 * from server. Even for cases when acl_size and md_size is zero, RPC header
164 * will contain 4 fields and RPC itself will contain zero size fields. This is
165 * because mdt_getattr*() _always_ returns 4 fields, but if acl is not needed
166 * and thus zero, it shrinks it, making zero size. The same story about
167 * md_size. And this is course of problem when client waits for smaller number
168 * of fields. This issue will be fixed later when client gets aware of RPC
171 static int mdc_getattr_common(struct obd_export *exp,
172 struct ptlrpc_request *req)
174 struct req_capsule *pill = &req->rq_pill;
175 struct mdt_body *body;
180 /* Request message already built. */
181 rc = ptlrpc_queue_wait(req);
185 /* sanity check for the reply */
186 body = req_capsule_server_get(pill, &RMF_MDT_BODY);
190 CDEBUG(D_NET, "mode: %o\n", body->mode);
192 if (body->eadatasize != 0) {
193 mdc_update_max_ea_from_body(exp, body);
195 eadata = req_capsule_server_sized_get(pill, &RMF_MDT_MD,
201 if (body->valid & OBD_MD_FLRMTPERM) {
202 struct mdt_remote_perm *perm;
204 LASSERT(client_is_remote(exp));
205 perm = req_capsule_server_swab_get(pill, &RMF_ACL,
206 lustre_swab_mdt_remote_perm);
211 if (body->valid & OBD_MD_FLMDSCAPA) {
212 struct lustre_capa *capa;
213 capa = req_capsule_server_get(pill, &RMF_CAPA1);
221 int mdc_getattr(struct obd_export *exp, struct md_op_data *op_data,
222 struct ptlrpc_request **request)
224 struct ptlrpc_request *req;
229 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_GETATTR);
233 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
235 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR);
237 ptlrpc_request_free(req);
241 mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1,
242 op_data->op_valid, op_data->op_mode, -1, 0);
244 req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
246 if (op_data->op_valid & OBD_MD_FLRMTPERM) {
247 LASSERT(client_is_remote(exp));
248 req_capsule_set_size(&req->rq_pill, &RMF_ACL, RCL_SERVER,
249 sizeof(struct mdt_remote_perm));
251 ptlrpc_request_set_replen(req);
253 rc = mdc_getattr_common(exp, req);
255 ptlrpc_req_finished(req);
261 int mdc_getattr_name(struct obd_export *exp, struct md_op_data *op_data,
262 struct ptlrpc_request **request)
264 struct ptlrpc_request *req;
269 req = ptlrpc_request_alloc(class_exp2cliimp(exp),
270 &RQF_MDS_GETATTR_NAME);
274 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
275 req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
276 op_data->op_namelen + 1);
278 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR_NAME);
280 ptlrpc_request_free(req);
284 mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1,
285 op_data->op_valid, op_data->op_mode,
286 op_data->op_suppgids[0], 0);
288 if (op_data->op_name) {
289 char *name = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
290 LASSERT(strnlen(op_data->op_name, op_data->op_namelen) ==
291 op_data->op_namelen);
292 memcpy(name, op_data->op_name, op_data->op_namelen);
295 req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
297 ptlrpc_request_set_replen(req);
299 rc = mdc_getattr_common(exp, req);
301 ptlrpc_req_finished(req);
307 static int mdc_is_subdir(struct obd_export *exp,
308 const struct lu_fid *pfid,
309 const struct lu_fid *cfid,
310 struct ptlrpc_request **request)
312 struct ptlrpc_request *req;
318 req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
319 &RQF_MDS_IS_SUBDIR, LUSTRE_MDS_VERSION,
324 mdc_is_subdir_pack(req, pfid, cfid, 0);
325 ptlrpc_request_set_replen(req);
327 rc = ptlrpc_queue_wait(req);
328 if (rc && rc != -EREMOTE)
329 ptlrpc_req_finished(req);
335 static int mdc_xattr_common(struct obd_export *exp,const struct req_format *fmt,
336 const struct lu_fid *fid,
337 struct obd_capa *oc, int opcode, obd_valid valid,
338 const char *xattr_name, const char *input,
339 int input_size, int output_size, int flags,
340 __u32 suppgid, struct ptlrpc_request **request)
342 struct ptlrpc_request *req;
343 int xattr_namelen = 0;
349 req = ptlrpc_request_alloc(class_exp2cliimp(exp), fmt);
353 mdc_set_capa_size(req, &RMF_CAPA1, oc);
355 xattr_namelen = strlen(xattr_name) + 1;
356 req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
361 req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_CLIENT,
365 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, opcode);
367 ptlrpc_request_free(req);
371 if (opcode == MDS_REINT) {
372 struct mdt_rec_setxattr *rec;
374 CLASSERT(sizeof(struct mdt_rec_setxattr) ==
375 sizeof(struct mdt_rec_reint));
376 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
377 rec->sx_opcode = REINT_SETXATTR;
379 * cfs_curproc_fs{u,g}id() should replace
380 * current->fs{u,g}id for portability.
382 rec->sx_fsuid = cfs_curproc_fsuid();
383 rec->sx_fsgid = cfs_curproc_fsgid();
384 rec->sx_cap = cfs_curproc_cap_pack();
385 rec->sx_suppgid1 = suppgid;
386 rec->sx_suppgid2 = -1;
388 rec->sx_valid = valid | OBD_MD_FLCTIME;
389 rec->sx_time = cfs_time_current_sec();
390 rec->sx_size = output_size;
391 rec->sx_flags = flags;
393 mdc_pack_capa(req, &RMF_CAPA1, oc);
395 mdc_pack_body(req, fid, oc, valid, output_size, suppgid, flags);
399 tmp = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
400 memcpy(tmp, xattr_name, xattr_namelen);
403 tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
404 memcpy(tmp, input, input_size);
407 if (req_capsule_has_field(&req->rq_pill, &RMF_EADATA, RCL_SERVER))
408 req_capsule_set_size(&req->rq_pill, &RMF_EADATA,
409 RCL_SERVER, output_size);
410 ptlrpc_request_set_replen(req);
413 if (opcode == MDS_REINT)
414 mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
416 rc = ptlrpc_queue_wait(req);
418 if (opcode == MDS_REINT)
419 mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
422 ptlrpc_req_finished(req);
428 int mdc_setxattr(struct obd_export *exp, const struct lu_fid *fid,
429 struct obd_capa *oc, obd_valid valid, const char *xattr_name,
430 const char *input, int input_size, int output_size,
431 int flags, __u32 suppgid, struct ptlrpc_request **request)
433 return mdc_xattr_common(exp, &RQF_MDS_REINT_SETXATTR,
434 fid, oc, MDS_REINT, valid, xattr_name,
435 input, input_size, output_size, flags,
439 int mdc_getxattr(struct obd_export *exp, const struct lu_fid *fid,
440 struct obd_capa *oc, obd_valid valid, const char *xattr_name,
441 const char *input, int input_size, int output_size,
442 int flags, struct ptlrpc_request **request)
444 return mdc_xattr_common(exp, &RQF_MDS_GETXATTR,
445 fid, oc, MDS_GETXATTR, valid, xattr_name,
446 input, input_size, output_size, flags,
450 #ifdef CONFIG_FS_POSIX_ACL
451 static int mdc_unpack_acl(struct ptlrpc_request *req, struct lustre_md *md)
453 struct req_capsule *pill = &req->rq_pill;
454 struct mdt_body *body = md->body;
455 struct posix_acl *acl;
463 buf = req_capsule_server_sized_get(pill, &RMF_ACL, body->aclsize);
468 acl = posix_acl_from_xattr(buf, body->aclsize);
471 CERROR("convert xattr to acl: %d\n", rc);
475 rc = posix_acl_valid(acl);
477 CERROR("validate acl: %d\n", rc);
478 posix_acl_release(acl);
486 #define mdc_unpack_acl(req, md) 0
489 int mdc_get_lustre_md(struct obd_export *exp, struct ptlrpc_request *req,
490 struct obd_export *dt_exp, struct obd_export *md_exp,
491 struct lustre_md *md)
493 struct req_capsule *pill = &req->rq_pill;
498 memset(md, 0, sizeof(*md));
500 md->body = req_capsule_server_get(pill, &RMF_MDT_BODY);
501 LASSERT(md->body != NULL);
503 if (md->body->valid & OBD_MD_FLEASIZE) {
505 struct lov_mds_md *lmm;
507 if (!S_ISREG(md->body->mode)) {
508 CDEBUG(D_INFO, "OBD_MD_FLEASIZE set, should be a "
509 "regular file, but is not\n");
510 GOTO(out, rc = -EPROTO);
513 if (md->body->eadatasize == 0) {
514 CDEBUG(D_INFO, "OBD_MD_FLEASIZE set, "
515 "but eadatasize 0\n");
516 GOTO(out, rc = -EPROTO);
518 lmmsize = md->body->eadatasize;
519 lmm = req_capsule_server_sized_get(pill, &RMF_MDT_MD, lmmsize);
521 GOTO(out, rc = -EPROTO);
523 rc = obd_unpackmd(dt_exp, &md->lsm, lmm, lmmsize);
527 if (rc < sizeof(*md->lsm)) {
528 CDEBUG(D_INFO, "lsm size too small: "
529 "rc < sizeof (*md->lsm) (%d < %d)\n",
530 rc, (int)sizeof(*md->lsm));
531 GOTO(out, rc = -EPROTO);
534 } else if (md->body->valid & OBD_MD_FLDIREA) {
536 struct lov_mds_md *lmv;
538 if(!S_ISDIR(md->body->mode)) {
539 CDEBUG(D_INFO, "OBD_MD_FLDIREA set, should be a "
540 "directory, but is not\n");
541 GOTO(out, rc = -EPROTO);
544 if (md->body->eadatasize == 0) {
545 CDEBUG(D_INFO, "OBD_MD_FLDIREA is set, "
546 "but eadatasize 0\n");
549 if (md->body->valid & OBD_MD_MEA) {
550 lmvsize = md->body->eadatasize;
551 lmv = req_capsule_server_sized_get(pill, &RMF_MDT_MD,
554 GOTO(out, rc = -EPROTO);
556 rc = obd_unpackmd(md_exp, (void *)&md->mea, lmv,
561 if (rc < sizeof(*md->mea)) {
562 CDEBUG(D_INFO, "size too small: "
563 "rc < sizeof(*md->mea) (%d < %d)\n",
564 rc, (int)sizeof(*md->mea));
565 GOTO(out, rc = -EPROTO);
571 if (md->body->valid & OBD_MD_FLRMTPERM) {
572 /* remote permission */
573 LASSERT(client_is_remote(exp));
574 md->remote_perm = req_capsule_server_swab_get(pill, &RMF_ACL,
575 lustre_swab_mdt_remote_perm);
576 if (!md->remote_perm)
577 GOTO(out, rc = -EPROTO);
579 else if (md->body->valid & OBD_MD_FLACL) {
580 /* for ACL, it's possible that FLACL is set but aclsize is zero.
581 * only when aclsize != 0 there's an actual segment for ACL
584 if (md->body->aclsize) {
585 rc = mdc_unpack_acl(req, md);
588 #ifdef CONFIG_FS_POSIX_ACL
590 md->posix_acl = NULL;
594 if (md->body->valid & OBD_MD_FLMDSCAPA) {
595 struct obd_capa *oc = NULL;
597 rc = mdc_unpack_capa(NULL, req, &RMF_CAPA1, &oc);
603 if (md->body->valid & OBD_MD_FLOSSCAPA) {
604 struct obd_capa *oc = NULL;
606 rc = mdc_unpack_capa(NULL, req, &RMF_CAPA2, &oc);
616 capa_put(md->oss_capa);
620 capa_put(md->mds_capa);
623 #ifdef CONFIG_FS_POSIX_ACL
624 posix_acl_release(md->posix_acl);
627 obd_free_memmd(dt_exp, &md->lsm);
632 int mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md)
639 * Handles both OPEN and SETATTR RPCs for OPEN-CLOSE and SETATTR-DONE_WRITING
642 void mdc_replay_open(struct ptlrpc_request *req)
644 struct md_open_data *mod = req->rq_cb_data;
645 struct ptlrpc_request *close_req;
646 struct obd_client_handle *och;
647 struct lustre_handle old;
648 struct mdt_body *body;
652 DEBUG_REQ(D_ERROR, req,
653 "Can't properly replay without open data.");
658 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
659 LASSERT(body != NULL);
663 struct lustre_handle *file_fh;
665 LASSERT(och->och_magic == OBD_CLIENT_HANDLE_MAGIC);
667 file_fh = &och->och_fh;
668 CDEBUG(D_HA, "updating handle from "LPX64" to "LPX64"\n",
669 file_fh->cookie, body->handle.cookie);
671 *file_fh = body->handle;
673 close_req = mod->mod_close_req;
674 if (close_req != NULL) {
675 __u32 opc = lustre_msg_get_opc(close_req->rq_reqmsg);
676 struct mdt_ioepoch *epoch;
678 LASSERT(opc == MDS_CLOSE || opc == MDS_DONE_WRITING);
679 epoch = req_capsule_client_get(&close_req->rq_pill,
684 LASSERT(!memcmp(&old, &epoch->handle, sizeof(old)));
685 DEBUG_REQ(D_HA, close_req, "updating close body with new fh");
686 epoch->handle = body->handle;
691 void mdc_commit_open(struct ptlrpc_request *req)
693 struct md_open_data *mod = req->rq_cb_data;
698 * No need to touch md_open_data::mod_och, it holds a reference on
699 * \var mod and will zero references to each other, \var mod will be
700 * freed after that when md_open_data::mod_och will put the reference.
704 * Do not let open request to disappear as it still may be needed
705 * for close rpc to happen (it may happen on evict only, otherwise
706 * ptlrpc_request::rq_replay does not let mdc_commit_open() to be
707 * called), just mark this rpc as committed to distinguish these 2
708 * cases, see mdc_close() for details. The open request reference will
709 * be put along with freeing \var mod.
711 ptlrpc_request_addref(req);
712 spin_lock(&req->rq_lock);
713 req->rq_committed = 1;
714 spin_unlock(&req->rq_lock);
715 req->rq_cb_data = NULL;
719 int mdc_set_open_replay_data(struct obd_export *exp,
720 struct obd_client_handle *och,
721 struct ptlrpc_request *open_req)
723 struct md_open_data *mod;
724 struct mdt_rec_create *rec;
725 struct mdt_body *body;
726 struct obd_import *imp = open_req->rq_import;
729 if (!open_req->rq_replay)
732 rec = req_capsule_client_get(&open_req->rq_pill, &RMF_REC_REINT);
733 body = req_capsule_server_get(&open_req->rq_pill, &RMF_MDT_BODY);
734 LASSERT(rec != NULL);
735 /* Incoming message in my byte order (it's been swabbed). */
736 /* Outgoing messages always in my byte order. */
737 LASSERT(body != NULL);
739 /* Only if the import is replayable, we set replay_open data */
740 if (och && imp->imp_replayable) {
741 mod = obd_mod_alloc();
743 DEBUG_REQ(D_ERROR, open_req,
744 "Can't allocate md_open_data");
749 * Take a reference on \var mod, to be freed on mdc_close().
750 * It protects \var mod from being freed on eviction (commit
751 * callback is called despite rq_replay flag).
752 * Another reference for \var och.
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 rec->cr_fid2 = body->fid1;
767 rec->cr_ioepoch = body->ioepoch;
768 rec->cr_old_handle.cookie = body->handle.cookie;
769 open_req->rq_replay_cb = mdc_replay_open;
770 if (!fid_is_sane(&body->fid1)) {
771 DEBUG_REQ(D_ERROR, open_req, "Saving replay request with "
776 DEBUG_REQ(D_RPCTRACE, open_req, "Set up open replay data");
780 int mdc_clear_open_replay_data(struct obd_export *exp,
781 struct obd_client_handle *och)
783 struct md_open_data *mod = och->och_mod;
787 * It is possible to not have \var mod in a case of eviction between
788 * lookup and ll_file_open().
793 LASSERT(mod != LP_POISON);
802 /* Prepares the request for the replay by the given reply */
803 static void mdc_close_handle_reply(struct ptlrpc_request *req,
804 struct md_op_data *op_data, int rc) {
805 struct mdt_body *repbody;
806 struct mdt_ioepoch *epoch;
808 if (req && rc == -EAGAIN) {
809 repbody = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
810 epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
812 epoch->flags |= MF_SOM_AU;
813 if (repbody->valid & OBD_MD_FLGETATTRLOCK)
814 op_data->op_flags |= MF_GETATTR_LOCK;
818 int mdc_close(struct obd_export *exp, struct md_op_data *op_data,
819 struct md_open_data *mod, struct ptlrpc_request **request)
821 struct obd_device *obd = class_exp2obd(exp);
822 struct ptlrpc_request *req;
827 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_CLOSE);
831 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
833 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_CLOSE);
835 ptlrpc_request_free(req);
839 /* To avoid a livelock (bug 7034), we need to send CLOSE RPCs to a
840 * portal whose threads are not taking any DLM locks and are therefore
841 * always progressing */
842 req->rq_request_portal = MDS_READPAGE_PORTAL;
843 ptlrpc_at_set_req_timeout(req);
845 /* Ensure that this close's handle is fixed up during replay. */
846 if (likely(mod != NULL)) {
847 LASSERTF(mod->mod_open_req != NULL &&
848 mod->mod_open_req->rq_type != LI_POISON,
849 "POISONED open %p!\n", mod->mod_open_req);
851 mod->mod_close_req = req;
853 DEBUG_REQ(D_HA, mod->mod_open_req, "matched open");
854 /* We no longer want to preserve this open for replay even
855 * though the open was committed. b=3632, b=3633 */
856 spin_lock(&mod->mod_open_req->rq_lock);
857 mod->mod_open_req->rq_replay = 0;
858 spin_unlock(&mod->mod_open_req->rq_lock);
860 CDEBUG(D_HA, "couldn't find open req; expecting close error\n");
863 mdc_close_pack(req, op_data);
865 req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
866 obd->u.cli.cl_max_mds_easize);
867 req_capsule_set_size(&req->rq_pill, &RMF_LOGCOOKIES, RCL_SERVER,
868 obd->u.cli.cl_max_mds_cookiesize);
870 ptlrpc_request_set_replen(req);
872 mdc_get_rpc_lock(obd->u.cli.cl_close_lock, NULL);
873 rc = ptlrpc_queue_wait(req);
874 mdc_put_rpc_lock(obd->u.cli.cl_close_lock, NULL);
876 if (req->rq_repmsg == NULL) {
877 CDEBUG(D_RPCTRACE, "request failed to send: %p, %d\n", req,
880 rc = req->rq_status ?: -EIO;
881 } else if (rc == 0 || rc == -EAGAIN) {
882 struct mdt_body *body;
884 rc = lustre_msg_get_status(req->rq_repmsg);
885 if (lustre_msg_get_type(req->rq_repmsg) == PTL_RPC_MSG_ERR) {
886 DEBUG_REQ(D_ERROR, req, "type == PTL_RPC_MSG_ERR, err "
891 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
894 } else if (rc == -ESTALE) {
896 * it can be allowed error after 3633 if open was committed and
897 * server failed before close was sent. Let's check if mod
898 * exists and return no error in that case
901 DEBUG_REQ(D_HA, req, "Reset ESTALE = %d", rc);
902 LASSERT(mod->mod_open_req != NULL);
903 if (mod->mod_open_req->rq_committed)
910 mod->mod_close_req = NULL;
911 /* Since now, mod is accessed through open_req only,
912 * thus close req does not keep a reference on mod anymore. */
916 mdc_close_handle_reply(req, op_data, rc);
920 int mdc_done_writing(struct obd_export *exp, struct md_op_data *op_data,
921 struct md_open_data *mod)
923 struct obd_device *obd = class_exp2obd(exp);
924 struct ptlrpc_request *req;
928 req = ptlrpc_request_alloc(class_exp2cliimp(exp),
929 &RQF_MDS_DONE_WRITING);
933 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
934 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_DONE_WRITING);
936 ptlrpc_request_free(req);
941 LASSERTF(mod->mod_open_req != NULL &&
942 mod->mod_open_req->rq_type != LI_POISON,
943 "POISONED setattr %p!\n", mod->mod_open_req);
945 mod->mod_close_req = req;
946 DEBUG_REQ(D_HA, mod->mod_open_req, "matched setattr");
947 /* We no longer want to preserve this setattr for replay even
948 * though the open was committed. b=3632, b=3633 */
949 spin_lock(&mod->mod_open_req->rq_lock);
950 mod->mod_open_req->rq_replay = 0;
951 spin_unlock(&mod->mod_open_req->rq_lock);
954 mdc_close_pack(req, op_data);
955 ptlrpc_request_set_replen(req);
957 mdc_get_rpc_lock(obd->u.cli.cl_close_lock, NULL);
958 rc = ptlrpc_queue_wait(req);
959 mdc_put_rpc_lock(obd->u.cli.cl_close_lock, NULL);
963 * it can be allowed error after 3633 if open or setattr were
964 * committed and server failed before close was sent.
965 * Let's check if mod exists and return no error in that case
968 LASSERT(mod->mod_open_req != NULL);
969 if (mod->mod_open_req->rq_committed)
976 mod->mod_close_req = NULL;
977 /* Since now, mod is accessed through setattr req only,
978 * thus DW req does not keep a reference on mod anymore. */
982 mdc_close_handle_reply(req, op_data, rc);
983 ptlrpc_req_finished(req);
987 #ifdef HAVE_SPLIT_SUPPORT
988 int mdc_sendpage(struct obd_export *exp, const struct lu_fid *fid,
989 const struct page *page, int offset)
991 struct ptlrpc_request *req;
992 struct ptlrpc_bulk_desc *desc;
996 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_WRITEPAGE);
1000 /* FIXME: capa doesn't support split yet */
1001 mdc_set_capa_size(req, &RMF_CAPA1, NULL);
1003 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_WRITEPAGE);
1005 ptlrpc_request_free(req);
1009 req->rq_request_portal = MDS_READPAGE_PORTAL;
1010 ptlrpc_at_set_req_timeout(req);
1012 desc = ptlrpc_prep_bulk_imp(req, 1, 1,BULK_GET_SOURCE, MDS_BULK_PORTAL);
1014 GOTO(out, rc = -ENOMEM);
1016 /* NB req now owns desc and will free it when it gets freed. */
1017 ptlrpc_prep_bulk_page(desc, (struct page *)page, 0, offset);
1018 mdc_readdir_pack(req, 0, offset, fid, NULL);
1020 ptlrpc_request_set_replen(req);
1021 rc = ptlrpc_queue_wait(req);
1025 rc = sptlrpc_cli_unwrap_bulk_write(req, req->rq_bulk);
1027 ptlrpc_req_finished(req);
1030 EXPORT_SYMBOL(mdc_sendpage);
1033 int mdc_readpage(struct obd_export *exp, struct md_op_data *op_data,
1034 struct page **pages, struct ptlrpc_request **request)
1036 struct ptlrpc_request *req;
1037 struct ptlrpc_bulk_desc *desc;
1041 struct l_wait_info lwi;
1046 cfs_waitq_init(&waitq);
1049 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_READPAGE);
1053 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
1055 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_READPAGE);
1057 ptlrpc_request_free(req);
1061 req->rq_request_portal = MDS_READPAGE_PORTAL;
1062 ptlrpc_at_set_req_timeout(req);
1064 desc = ptlrpc_prep_bulk_imp(req, op_data->op_npages, 1, BULK_PUT_SINK,
1067 ptlrpc_request_free(req);
1071 /* NB req now owns desc and will free it when it gets freed */
1072 for (i = 0; i < op_data->op_npages; i++)
1073 ptlrpc_prep_bulk_page_pin(desc, pages[i], 0, CFS_PAGE_SIZE);
1075 mdc_readdir_pack(req, op_data->op_offset,
1076 CFS_PAGE_SIZE * op_data->op_npages,
1077 &op_data->op_fid1, op_data->op_capa1);
1079 ptlrpc_request_set_replen(req);
1080 rc = ptlrpc_queue_wait(req);
1082 ptlrpc_req_finished(req);
1083 if (rc != -ETIMEDOUT)
1087 if (!client_should_resend(resends, &exp->exp_obd->u.cli)) {
1088 CERROR("too many resend retries, returning error\n");
1091 lwi = LWI_TIMEOUT_INTR(cfs_time_seconds(resends), NULL, NULL, NULL);
1092 l_wait_event(waitq, 0, &lwi);
1097 rc = sptlrpc_cli_unwrap_bulk_read(req, req->rq_bulk,
1098 req->rq_bulk->bd_nob_transferred);
1100 ptlrpc_req_finished(req);
1104 if (req->rq_bulk->bd_nob_transferred & ~LU_PAGE_MASK) {
1105 CERROR("Unexpected # bytes transferred: %d (%ld expected)\n",
1106 req->rq_bulk->bd_nob_transferred,
1107 CFS_PAGE_SIZE * op_data->op_npages);
1108 ptlrpc_req_finished(req);
1116 static int mdc_statfs(const struct lu_env *env,
1117 struct obd_export *exp, struct obd_statfs *osfs,
1118 __u64 max_age, __u32 flags)
1120 struct obd_device *obd = class_exp2obd(exp);
1121 struct ptlrpc_request *req;
1122 struct obd_statfs *msfs;
1123 struct obd_import *imp = NULL;
1128 * Since the request might also come from lprocfs, so we need
1129 * sync this with client_disconnect_export Bug15684
1131 down_read(&obd->u.cli.cl_sem);
1132 if (obd->u.cli.cl_import)
1133 imp = class_import_get(obd->u.cli.cl_import);
1134 up_read(&obd->u.cli.cl_sem);
1138 req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_STATFS,
1139 LUSTRE_MDS_VERSION, MDS_STATFS);
1141 GOTO(output, rc = -ENOMEM);
1143 ptlrpc_request_set_replen(req);
1145 if (flags & OBD_STATFS_NODELAY) {
1146 /* procfs requests not want stay in wait for avoid deadlock */
1147 req->rq_no_resend = 1;
1148 req->rq_no_delay = 1;
1151 rc = ptlrpc_queue_wait(req);
1153 /* check connection error first */
1154 if (imp->imp_connect_error)
1155 rc = imp->imp_connect_error;
1159 msfs = req_capsule_server_get(&req->rq_pill, &RMF_OBD_STATFS);
1161 GOTO(out, rc = -EPROTO);
1166 ptlrpc_req_finished(req);
1168 class_import_put(imp);
1172 static int mdc_ioc_fid2path(struct obd_export *exp, struct getinfo_fid2path *gf)
1174 __u32 keylen, vallen;
1178 if (gf->gf_pathlen > PATH_MAX)
1179 RETURN(-ENAMETOOLONG);
1180 if (gf->gf_pathlen < 2)
1183 /* Key is KEY_FID2PATH + getinfo_fid2path description */
1184 keylen = cfs_size_round(sizeof(KEY_FID2PATH)) + sizeof(*gf);
1185 OBD_ALLOC(key, keylen);
1188 memcpy(key, KEY_FID2PATH, sizeof(KEY_FID2PATH));
1189 memcpy(key + cfs_size_round(sizeof(KEY_FID2PATH)), gf, sizeof(*gf));
1191 CDEBUG(D_IOCTL, "path get "DFID" from "LPU64" #%d\n",
1192 PFID(&gf->gf_fid), gf->gf_recno, gf->gf_linkno);
1194 if (!fid_is_sane(&gf->gf_fid))
1195 GOTO(out, rc = -EINVAL);
1197 /* Val is struct getinfo_fid2path result plus path */
1198 vallen = sizeof(*gf) + gf->gf_pathlen;
1200 rc = obd_get_info(NULL, exp, keylen, key, &vallen, gf, NULL);
1201 if (rc != 0 && rc != -EREMOTE)
1204 if (vallen <= sizeof(*gf))
1205 GOTO(out, rc = -EPROTO);
1206 else if (vallen > sizeof(*gf) + gf->gf_pathlen)
1207 GOTO(out, rc = -EOVERFLOW);
1209 CDEBUG(D_IOCTL, "path get "DFID" from "LPU64" #%d\n%s\n",
1210 PFID(&gf->gf_fid), gf->gf_recno, gf->gf_linkno, gf->gf_path);
1213 OBD_FREE(key, keylen);
1217 static int mdc_ioc_hsm_progress(struct obd_export *exp,
1218 struct hsm_progress_kernel *hpk)
1220 struct obd_import *imp = class_exp2cliimp(exp);
1221 struct hsm_progress_kernel *req_hpk;
1222 struct ptlrpc_request *req;
1226 req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_HSM_PROGRESS,
1227 LUSTRE_MDS_VERSION, MDS_HSM_PROGRESS);
1229 GOTO(out, rc = -ENOMEM);
1231 mdc_pack_body(req, NULL, NULL, OBD_MD_FLRMTPERM, 0, 0, 0);
1233 /* Copy hsm_progress struct */
1234 req_hpk = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_PROGRESS);
1235 if (req_hpk == NULL)
1236 GOTO(out, rc = -EPROTO);
1240 ptlrpc_request_set_replen(req);
1242 rc = mdc_queue_wait(req);
1245 ptlrpc_req_finished(req);
1249 static int mdc_ioc_hsm_ct_register(struct obd_import *imp, __u32 archives)
1251 __u32 *archive_mask;
1252 struct ptlrpc_request *req;
1256 req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_HSM_CT_REGISTER,
1258 MDS_HSM_CT_REGISTER);
1260 GOTO(out, rc = -ENOMEM);
1262 mdc_pack_body(req, NULL, NULL, OBD_MD_FLRMTPERM, 0, 0, 0);
1264 /* Copy hsm_progress struct */
1265 archive_mask = req_capsule_client_get(&req->rq_pill,
1266 &RMF_MDS_HSM_ARCHIVE);
1267 if (archive_mask == NULL)
1268 GOTO(out, rc = -EPROTO);
1270 *archive_mask = archives;
1272 ptlrpc_request_set_replen(req);
1274 rc = mdc_queue_wait(req);
1277 ptlrpc_req_finished(req);
1281 static int mdc_ioc_hsm_current_action(struct obd_export *exp,
1282 struct md_op_data *op_data)
1284 struct hsm_current_action *hca = op_data->op_data;
1285 struct hsm_current_action *req_hca;
1286 struct ptlrpc_request *req;
1290 req = ptlrpc_request_alloc(class_exp2cliimp(exp),
1291 &RQF_MDS_HSM_ACTION);
1295 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
1297 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_ACTION);
1299 ptlrpc_request_free(req);
1303 mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1,
1304 OBD_MD_FLRMTPERM, 0, op_data->op_suppgids[0], 0);
1306 ptlrpc_request_set_replen(req);
1308 rc = mdc_queue_wait(req);
1312 req_hca = req_capsule_server_get(&req->rq_pill,
1313 &RMF_MDS_HSM_CURRENT_ACTION);
1314 if (req_hca == NULL)
1315 GOTO(out, rc = -EPROTO);
1321 ptlrpc_req_finished(req);
1325 static int mdc_ioc_hsm_ct_unregister(struct obd_import *imp)
1327 struct ptlrpc_request *req;
1331 req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_HSM_CT_UNREGISTER,
1333 MDS_HSM_CT_UNREGISTER);
1335 GOTO(out, rc = -ENOMEM);
1337 mdc_pack_body(req, NULL, NULL, OBD_MD_FLRMTPERM, 0, 0, 0);
1339 ptlrpc_request_set_replen(req);
1341 rc = mdc_queue_wait(req);
1344 ptlrpc_req_finished(req);
1348 static int mdc_ioc_hsm_state_get(struct obd_export *exp,
1349 struct md_op_data *op_data)
1351 struct hsm_user_state *hus = op_data->op_data;
1352 struct hsm_user_state *req_hus;
1353 struct ptlrpc_request *req;
1357 req = ptlrpc_request_alloc(class_exp2cliimp(exp),
1358 &RQF_MDS_HSM_STATE_GET);
1362 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
1364 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_STATE_GET);
1366 ptlrpc_request_free(req);
1370 mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1,
1371 OBD_MD_FLRMTPERM, 0, op_data->op_suppgids[0], 0);
1373 ptlrpc_request_set_replen(req);
1375 rc = mdc_queue_wait(req);
1379 req_hus = req_capsule_server_get(&req->rq_pill, &RMF_HSM_USER_STATE);
1380 if (req_hus == NULL)
1381 GOTO(out, rc = -EPROTO);
1387 ptlrpc_req_finished(req);
1391 static int mdc_ioc_hsm_state_set(struct obd_export *exp,
1392 struct md_op_data *op_data)
1394 struct hsm_state_set *hss = op_data->op_data;
1395 struct hsm_state_set *req_hss;
1396 struct ptlrpc_request *req;
1400 req = ptlrpc_request_alloc(class_exp2cliimp(exp),
1401 &RQF_MDS_HSM_STATE_SET);
1405 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
1407 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_STATE_SET);
1409 ptlrpc_request_free(req);
1413 mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1,
1414 OBD_MD_FLRMTPERM, 0, op_data->op_suppgids[0], 0);
1417 req_hss = req_capsule_client_get(&req->rq_pill, &RMF_HSM_STATE_SET);
1418 if (req_hss == NULL)
1419 GOTO(out, rc = -EPROTO);
1422 ptlrpc_request_set_replen(req);
1424 rc = mdc_queue_wait(req);
1429 ptlrpc_req_finished(req);
1433 static int mdc_ioc_hsm_request(struct obd_export *exp,
1434 struct hsm_user_request *hur)
1436 struct obd_import *imp = class_exp2cliimp(exp);
1437 struct ptlrpc_request *req;
1438 struct hsm_request *req_hr;
1439 struct hsm_user_item *req_hui;
1444 req = ptlrpc_request_alloc(imp, &RQF_MDS_HSM_REQUEST);
1446 GOTO(out, rc = -ENOMEM);
1448 req_capsule_set_size(&req->rq_pill, &RMF_MDS_HSM_USER_ITEM, RCL_CLIENT,
1449 hur->hur_request.hr_itemcount
1450 * sizeof(struct hsm_user_item));
1451 req_capsule_set_size(&req->rq_pill, &RMF_GENERIC_DATA, RCL_CLIENT,
1452 hur->hur_request.hr_data_len);
1454 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_REQUEST);
1456 ptlrpc_request_free(req);
1460 mdc_pack_body(req, NULL, NULL, OBD_MD_FLRMTPERM, 0, 0, 0);
1462 /* Copy hsm_request struct */
1463 req_hr = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_REQUEST);
1465 GOTO(out, rc = -EPROTO);
1466 *req_hr = hur->hur_request;
1468 /* Copy hsm_user_item structs */
1469 req_hui = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_USER_ITEM);
1470 if (req_hui == NULL)
1471 GOTO(out, rc = -EPROTO);
1472 memcpy(req_hui, hur->hur_user_item,
1473 hur->hur_request.hr_itemcount * sizeof(struct hsm_user_item));
1475 /* Copy opaque field */
1476 req_opaque = req_capsule_client_get(&req->rq_pill, &RMF_GENERIC_DATA);
1477 if (req_opaque == NULL)
1478 GOTO(out, rc = -EPROTO);
1479 memcpy(req_opaque, hur_data(hur), hur->hur_request.hr_data_len);
1481 ptlrpc_request_set_replen(req);
1483 rc = mdc_queue_wait(req);
1487 ptlrpc_req_finished(req);
1491 static struct kuc_hdr *changelog_kuc_hdr(char *buf, int len, int flags)
1493 struct kuc_hdr *lh = (struct kuc_hdr *)buf;
1495 LASSERT(len <= CR_MAXSIZE);
1497 lh->kuc_magic = KUC_MAGIC;
1498 lh->kuc_transport = KUC_TRANSPORT_CHANGELOG;
1499 lh->kuc_flags = flags;
1500 lh->kuc_msgtype = CL_RECORD;
1501 lh->kuc_msglen = len;
1505 #define D_CHANGELOG 0
1507 struct changelog_show {
1512 struct obd_device *cs_obd;
1515 static int changelog_show_cb(const struct lu_env *env, struct llog_handle *llh,
1516 struct llog_rec_hdr *hdr, void *data)
1518 struct changelog_show *cs = data;
1519 struct llog_changelog_rec *rec = (struct llog_changelog_rec *)hdr;
1524 if ((rec->cr_hdr.lrh_type != CHANGELOG_REC) ||
1525 (rec->cr.cr_type >= CL_LAST)) {
1526 CERROR("Not a changelog rec %d/%d\n", rec->cr_hdr.lrh_type,
1531 if (rec->cr.cr_index < cs->cs_startrec) {
1532 /* Skip entries earlier than what we are interested in */
1533 CDEBUG(D_CHANGELOG, "rec="LPU64" start="LPU64"\n",
1534 rec->cr.cr_index, cs->cs_startrec);
1538 CDEBUG(D_CHANGELOG, LPU64" %02d%-5s "LPU64" 0x%x t="DFID" p="DFID
1539 " %.*s\n", rec->cr.cr_index, rec->cr.cr_type,
1540 changelog_type2str(rec->cr.cr_type), rec->cr.cr_time,
1541 rec->cr.cr_flags & CLF_FLAGMASK,
1542 PFID(&rec->cr.cr_tfid), PFID(&rec->cr.cr_pfid),
1543 rec->cr.cr_namelen, changelog_rec_name(&rec->cr));
1545 len = sizeof(*lh) + changelog_rec_size(&rec->cr) + rec->cr.cr_namelen;
1547 /* Set up the message */
1548 lh = changelog_kuc_hdr(cs->cs_buf, len, cs->cs_flags);
1549 memcpy(lh + 1, &rec->cr, len - sizeof(*lh));
1551 rc = libcfs_kkuc_msg_put(cs->cs_fp, lh);
1552 CDEBUG(D_CHANGELOG, "kucmsg fp %p len %d rc %d\n", cs->cs_fp, len,rc);
1557 static int mdc_changelog_send_thread(void *csdata)
1559 struct changelog_show *cs = csdata;
1560 struct llog_ctxt *ctxt = NULL;
1561 struct llog_handle *llh = NULL;
1562 struct kuc_hdr *kuch;
1565 CDEBUG(D_CHANGELOG, "changelog to fp=%p start "LPU64"\n",
1566 cs->cs_fp, cs->cs_startrec);
1569 * It's important to daemonize here to close unused FDs.
1570 * The write fd from pipe is already opened by the caller,
1571 * so it's fine to clear all files here
1573 cfs_daemonize("mdc_clg_send_thread");
1575 OBD_ALLOC(cs->cs_buf, CR_MAXSIZE);
1576 if (cs->cs_buf == NULL)
1577 GOTO(out, rc = -ENOMEM);
1579 /* Set up the remote catalog handle */
1580 ctxt = llog_get_context(cs->cs_obd, LLOG_CHANGELOG_REPL_CTXT);
1582 GOTO(out, rc = -ENOENT);
1583 rc = llog_open(NULL, ctxt, &llh, NULL, CHANGELOG_CATALOG,
1586 CERROR("%s: fail to open changelog catalog: rc = %d\n",
1587 cs->cs_obd->obd_name, rc);
1590 rc = llog_init_handle(NULL, llh, LLOG_F_IS_CAT, NULL);
1592 CERROR("llog_init_handle failed %d\n", rc);
1596 rc = llog_cat_process(NULL, llh, changelog_show_cb, cs, 0, 0);
1598 /* Send EOF no matter what our result */
1599 if ((kuch = changelog_kuc_hdr(cs->cs_buf, sizeof(*kuch),
1601 kuch->kuc_msgtype = CL_EOF;
1602 libcfs_kkuc_msg_put(cs->cs_fp, kuch);
1608 llog_cat_close(NULL, llh);
1610 llog_ctxt_put(ctxt);
1612 OBD_FREE(cs->cs_buf, CR_MAXSIZE);
1614 /* detach from parent process so we get cleaned up */
1615 cfs_daemonize("cl_send");
1619 static int mdc_ioc_changelog_send(struct obd_device *obd,
1620 struct ioc_changelog *icc)
1622 struct changelog_show *cs;
1625 /* Freed in mdc_changelog_send_thread */
1631 cs->cs_startrec = icc->icc_recno;
1632 /* matching fput in mdc_changelog_send_thread */
1633 cs->cs_fp = fget(icc->icc_id);
1634 cs->cs_flags = icc->icc_flags;
1636 /* New thread because we should return to user app before
1637 writing into our pipe */
1638 rc = cfs_create_thread(mdc_changelog_send_thread, cs, CFS_DAEMON_FLAGS);
1640 CDEBUG(D_CHANGELOG, "start changelog thread: %d\n", rc);
1644 CERROR("Failed to start changelog thread: %d\n", rc);
1649 static int mdc_ioc_hsm_ct_start(struct obd_export *exp,
1650 struct lustre_kernelcomm *lk);
1652 static int mdc_quotacheck(struct obd_device *unused, struct obd_export *exp,
1653 struct obd_quotactl *oqctl)
1655 struct client_obd *cli = &exp->exp_obd->u.cli;
1656 struct ptlrpc_request *req;
1657 struct obd_quotactl *body;
1661 req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
1662 &RQF_MDS_QUOTACHECK, LUSTRE_MDS_VERSION,
1667 body = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
1670 ptlrpc_request_set_replen(req);
1672 /* the next poll will find -ENODATA, that means quotacheck is
1674 cli->cl_qchk_stat = -ENODATA;
1675 rc = ptlrpc_queue_wait(req);
1677 cli->cl_qchk_stat = rc;
1678 ptlrpc_req_finished(req);
1682 static int mdc_quota_poll_check(struct obd_export *exp,
1683 struct if_quotacheck *qchk)
1685 struct client_obd *cli = &exp->exp_obd->u.cli;
1689 qchk->obd_uuid = cli->cl_target_uuid;
1690 memcpy(qchk->obd_type, LUSTRE_MDS_NAME, strlen(LUSTRE_MDS_NAME));
1692 rc = cli->cl_qchk_stat;
1693 /* the client is not the previous one */
1694 if (rc == CL_NOT_QUOTACHECKED)
1699 static int mdc_quotactl(struct obd_device *unused, struct obd_export *exp,
1700 struct obd_quotactl *oqctl)
1702 struct ptlrpc_request *req;
1703 struct obd_quotactl *oqc;
1707 req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
1708 &RQF_MDS_QUOTACTL, LUSTRE_MDS_VERSION,
1713 oqc = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
1716 ptlrpc_request_set_replen(req);
1717 ptlrpc_at_set_req_timeout(req);
1718 req->rq_no_resend = 1;
1720 rc = ptlrpc_queue_wait(req);
1722 CERROR("ptlrpc_queue_wait failed, rc: %d\n", rc);
1724 if (req->rq_repmsg &&
1725 (oqc = req_capsule_server_get(&req->rq_pill, &RMF_OBD_QUOTACTL))) {
1728 CERROR ("Can't unpack obd_quotactl\n");
1731 ptlrpc_req_finished(req);
1736 static int mdc_ioc_swap_layouts(struct obd_export *exp,
1737 struct md_op_data *op_data)
1739 CFS_LIST_HEAD(cancels);
1740 struct ptlrpc_request *req;
1742 struct mdc_swap_layouts *msl, *payload;
1745 msl = op_data->op_data;
1747 /* When the MDT will get the MDS_SWAP_LAYOUTS RPC the
1748 * first thing it will do is to cancel the 2 layout
1749 * locks hold by this client.
1750 * So the client must cancel its layout locks on the 2 fids
1751 * with the request RPC to avoid extra RPC round trips
1753 count = mdc_resource_get_unused(exp, &op_data->op_fid1, &cancels,
1754 LCK_CR, MDS_INODELOCK_LAYOUT);
1755 count += mdc_resource_get_unused(exp, &op_data->op_fid2, &cancels,
1756 LCK_CR, MDS_INODELOCK_LAYOUT);
1758 req = ptlrpc_request_alloc(class_exp2cliimp(exp),
1759 &RQF_MDS_SWAP_LAYOUTS);
1761 ldlm_lock_list_put(&cancels, l_bl_ast, count);
1765 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
1766 mdc_set_capa_size(req, &RMF_CAPA2, op_data->op_capa2);
1768 rc = mdc_prep_elc_req(exp, req, MDS_SWAP_LAYOUTS, &cancels, count);
1770 ptlrpc_request_free(req);
1774 mdc_swap_layouts_pack(req, op_data);
1776 payload = req_capsule_client_get(&req->rq_pill, &RMF_SWAP_LAYOUTS);
1781 ptlrpc_request_set_replen(req);
1783 rc = ptlrpc_queue_wait(req);
1789 ptlrpc_req_finished(req);
1793 static int mdc_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
1794 void *karg, void *uarg)
1796 struct obd_device *obd = exp->exp_obd;
1797 struct obd_ioctl_data *data = karg;
1798 struct obd_import *imp = obd->u.cli.cl_import;
1799 struct llog_ctxt *ctxt;
1803 if (!cfs_try_module_get(THIS_MODULE)) {
1804 CERROR("Can't get module. Is it alive?");
1808 case OBD_IOC_CHANGELOG_SEND:
1809 rc = mdc_ioc_changelog_send(obd, karg);
1811 case OBD_IOC_CHANGELOG_CLEAR: {
1812 struct ioc_changelog *icc = karg;
1813 struct changelog_setinfo cs =
1814 {.cs_recno = icc->icc_recno, .cs_id = icc->icc_id};
1815 rc = obd_set_info_async(NULL, exp, strlen(KEY_CHANGELOG_CLEAR),
1816 KEY_CHANGELOG_CLEAR, sizeof(cs), &cs,
1820 case OBD_IOC_FID2PATH:
1821 rc = mdc_ioc_fid2path(exp, karg);
1823 case LL_IOC_HSM_CT_START:
1824 rc = mdc_ioc_hsm_ct_start(exp, karg);
1826 case LL_IOC_HSM_PROGRESS:
1827 rc = mdc_ioc_hsm_progress(exp, karg);
1829 case LL_IOC_HSM_STATE_GET:
1830 rc = mdc_ioc_hsm_state_get(exp, karg);
1832 case LL_IOC_HSM_STATE_SET:
1833 rc = mdc_ioc_hsm_state_set(exp, karg);
1834 case LL_IOC_HSM_ACTION:
1835 rc = mdc_ioc_hsm_current_action(exp, karg);
1837 case LL_IOC_HSM_REQUEST:
1838 rc = mdc_ioc_hsm_request(exp, karg);
1840 case OBD_IOC_CLIENT_RECOVER:
1841 rc = ptlrpc_recover_import(imp, data->ioc_inlbuf1, 0);
1845 case IOC_OSC_SET_ACTIVE:
1846 rc = ptlrpc_set_import_active(imp, data->ioc_offset);
1848 case OBD_IOC_PARSE: {
1849 ctxt = llog_get_context(exp->exp_obd, LLOG_CONFIG_REPL_CTXT);
1850 rc = class_config_parse_llog(NULL, ctxt, data->ioc_inlbuf1,
1852 llog_ctxt_put(ctxt);
1856 case OBD_IOC_LLOG_INFO:
1857 case OBD_IOC_LLOG_PRINT: {
1858 ctxt = llog_get_context(obd, LLOG_CONFIG_REPL_CTXT);
1859 rc = llog_ioctl(NULL, ctxt, cmd, data);
1860 llog_ctxt_put(ctxt);
1864 case OBD_IOC_POLL_QUOTACHECK:
1865 rc = mdc_quota_poll_check(exp, (struct if_quotacheck *)karg);
1867 case OBD_IOC_PING_TARGET:
1868 rc = ptlrpc_obd_ping(obd);
1871 * Normally IOC_OBD_STATFS, OBD_IOC_QUOTACTL iocontrol are handled by
1872 * LMV instead of MDC. But when the cluster is upgraded from 1.8,
1873 * there'd be no LMV layer thus we might be called here. Eventually
1874 * this code should be removed.
1877 case IOC_OBD_STATFS: {
1878 struct obd_statfs stat_buf = {0};
1880 if (*((__u32 *) data->ioc_inlbuf2) != 0)
1881 GOTO(out, rc = -ENODEV);
1884 if (cfs_copy_to_user(data->ioc_pbuf2, obd2cli_tgt(obd),
1885 min((int) data->ioc_plen2,
1886 (int) sizeof(struct obd_uuid))))
1887 GOTO(out, rc = -EFAULT);
1889 rc = mdc_statfs(NULL, obd->obd_self_export, &stat_buf,
1890 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
1895 if (cfs_copy_to_user(data->ioc_pbuf1, &stat_buf,
1896 min((int) data->ioc_plen1,
1897 (int) sizeof(stat_buf))))
1898 GOTO(out, rc = -EFAULT);
1902 case OBD_IOC_QUOTACTL: {
1903 struct if_quotactl *qctl = karg;
1904 struct obd_quotactl *oqctl;
1906 OBD_ALLOC_PTR(oqctl);
1910 QCTL_COPY(oqctl, qctl);
1911 rc = obd_quotactl(exp, oqctl);
1913 QCTL_COPY(qctl, oqctl);
1914 qctl->qc_valid = QC_MDTIDX;
1915 qctl->obd_uuid = obd->u.cli.cl_target_uuid;
1917 OBD_FREE_PTR(oqctl);
1920 case LL_IOC_GET_CONNECT_FLAGS: {
1921 if (cfs_copy_to_user(uarg,
1922 exp_connect_flags_ptr(exp),
1924 GOTO(out, rc = -EFAULT);
1928 case LL_IOC_LOV_SWAP_LAYOUTS: {
1929 rc = mdc_ioc_swap_layouts(exp, karg);
1933 CERROR("mdc_ioctl(): unrecognised ioctl %#x\n", cmd);
1934 GOTO(out, rc = -ENOTTY);
1937 cfs_module_put(THIS_MODULE);
1942 int mdc_get_info_rpc(struct obd_export *exp,
1943 obd_count keylen, void *key,
1944 int vallen, void *val)
1946 struct obd_import *imp = class_exp2cliimp(exp);
1947 struct ptlrpc_request *req;
1952 req = ptlrpc_request_alloc(imp, &RQF_MDS_GET_INFO);
1956 req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_KEY,
1957 RCL_CLIENT, keylen);
1958 req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_VALLEN,
1959 RCL_CLIENT, sizeof(__u32));
1961 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GET_INFO);
1963 ptlrpc_request_free(req);
1967 tmp = req_capsule_client_get(&req->rq_pill, &RMF_GETINFO_KEY);
1968 memcpy(tmp, key, keylen);
1969 tmp = req_capsule_client_get(&req->rq_pill, &RMF_GETINFO_VALLEN);
1970 memcpy(tmp, &vallen, sizeof(__u32));
1972 req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_VAL,
1973 RCL_SERVER, vallen);
1974 ptlrpc_request_set_replen(req);
1976 rc = ptlrpc_queue_wait(req);
1977 /* -EREMOTE means the get_info result is partial, and it needs to
1978 * continue on another MDT, see fid2path part in lmv_iocontrol */
1979 if (rc == 0 || rc == -EREMOTE) {
1980 tmp = req_capsule_server_get(&req->rq_pill, &RMF_GETINFO_VAL);
1981 memcpy(val, tmp, vallen);
1982 if (ptlrpc_rep_need_swab(req)) {
1983 if (KEY_IS(KEY_FID2PATH))
1984 lustre_swab_fid2path(val);
1987 ptlrpc_req_finished(req);
1992 static void lustre_swab_hai(struct hsm_action_item *h)
1994 __swab32s(&h->hai_len);
1995 __swab32s(&h->hai_action);
1996 lustre_swab_lu_fid(&h->hai_fid);
1997 lustre_swab_lu_fid(&h->hai_dfid);
1998 __swab64s(&h->hai_cookie);
1999 __swab64s(&h->hai_extent.offset);
2000 __swab64s(&h->hai_extent.length);
2001 __swab64s(&h->hai_gid);
2004 static void lustre_swab_hal(struct hsm_action_list *h)
2006 struct hsm_action_item *hai;
2009 __swab32s(&h->hal_version);
2010 __swab32s(&h->hal_count);
2011 __swab32s(&h->hal_archive_id);
2012 __swab64s(&h->hal_flags);
2014 for (i = 0; i < h->hal_count; i++) {
2015 lustre_swab_hai(hai);
2016 hai = hai_next(hai);
2020 static void lustre_swab_kuch(struct kuc_hdr *l)
2022 __swab16s(&l->kuc_magic);
2023 /* __u8 l->kuc_transport */
2024 __swab16s(&l->kuc_msgtype);
2025 __swab16s(&l->kuc_msglen);
2028 static int mdc_ioc_hsm_ct_start(struct obd_export *exp,
2029 struct lustre_kernelcomm *lk)
2031 struct obd_import *imp = class_exp2cliimp(exp);
2032 __u32 archive = lk->lk_data;
2035 if (lk->lk_group != KUC_GRP_HSM) {
2036 CERROR("Bad copytool group %d\n", lk->lk_group);
2040 CDEBUG(D_HSM, "CT start r%d w%d u%d g%d f%#x\n", lk->lk_rfd, lk->lk_wfd,
2041 lk->lk_uid, lk->lk_group, lk->lk_flags);
2043 if (lk->lk_flags & LK_FLG_STOP) {
2044 rc = libcfs_kkuc_group_rem(lk->lk_uid, lk->lk_group);
2045 /* Unregister with the coordinator */
2047 rc = mdc_ioc_hsm_ct_unregister(imp);
2049 struct file *fp = fget(lk->lk_wfd);
2051 rc = libcfs_kkuc_group_add(fp, lk->lk_uid, lk->lk_group,
2056 rc = mdc_ioc_hsm_ct_register(imp, archive);
2063 * Send a message to any listening copytools
2064 * @param val KUC message (kuc_hdr + hsm_action_list)
2065 * @param len total length of message
2067 static int mdc_hsm_copytool_send(int len, void *val)
2069 struct kuc_hdr *lh = (struct kuc_hdr *)val;
2070 struct hsm_action_list *hal = (struct hsm_action_list *)(lh + 1);
2074 if (len < sizeof(*lh) + sizeof(*hal)) {
2075 CERROR("Short HSM message %d < %d\n", len,
2076 (int) (sizeof(*lh) + sizeof(*hal)));
2079 if (lh->kuc_magic == __swab16(KUC_MAGIC)) {
2080 lustre_swab_kuch(lh);
2081 lustre_swab_hal(hal);
2082 } else if (lh->kuc_magic != KUC_MAGIC) {
2083 CERROR("Bad magic %x!=%x\n", lh->kuc_magic, KUC_MAGIC);
2087 CDEBUG(D_HSM, " Received message mg=%x t=%d m=%d l=%d actions=%d "
2089 lh->kuc_magic, lh->kuc_transport, lh->kuc_msgtype,
2090 lh->kuc_msglen, hal->hal_count, hal->hal_fsname);
2092 /* Broadcast to HSM listeners */
2093 rc = libcfs_kkuc_group_put(KUC_GRP_HSM, lh);
2099 * callback function passed to kuc for re-registering each HSM copytool
2100 * running on MDC, after MDT shutdown/recovery.
2101 * @param data archive id served by the copytool
2102 * @param cb_arg callback argument (obd_import)
2104 static int mdc_hsm_ct_reregister(__u32 data, void *cb_arg)
2106 struct obd_import *imp = (struct obd_import *)cb_arg;
2107 __u32 archive = data;
2110 CDEBUG(D_HA, "recover copytool registration to MDT (archive=%#x)\n",
2112 rc = mdc_ioc_hsm_ct_register(imp, archive);
2114 /* ignore error if the copytool is already registered */
2115 return ((rc != 0) && (rc != -EEXIST)) ? rc : 0;
2119 * Re-establish all kuc contexts with MDT
2120 * after MDT shutdown/recovery.
2122 static int mdc_kuc_reregister(struct obd_import *imp)
2124 /* re-register HSM agents */
2125 return libcfs_kkuc_group_foreach(KUC_GRP_HSM, mdc_hsm_ct_reregister,
2129 int mdc_set_info_async(const struct lu_env *env,
2130 struct obd_export *exp,
2131 obd_count keylen, void *key,
2132 obd_count vallen, void *val,
2133 struct ptlrpc_request_set *set)
2135 struct obd_import *imp = class_exp2cliimp(exp);
2139 if (KEY_IS(KEY_READ_ONLY)) {
2140 if (vallen != sizeof(int))
2143 spin_lock(&imp->imp_lock);
2144 if (*((int *)val)) {
2145 imp->imp_connect_flags_orig |= OBD_CONNECT_RDONLY;
2146 imp->imp_connect_data.ocd_connect_flags |=
2149 imp->imp_connect_flags_orig &= ~OBD_CONNECT_RDONLY;
2150 imp->imp_connect_data.ocd_connect_flags &=
2151 ~OBD_CONNECT_RDONLY;
2153 spin_unlock(&imp->imp_lock);
2155 rc = do_set_info_async(imp, MDS_SET_INFO, LUSTRE_MDS_VERSION,
2156 keylen, key, vallen, val, set);
2159 if (KEY_IS(KEY_SPTLRPC_CONF)) {
2160 sptlrpc_conf_client_adapt(exp->exp_obd);
2163 if (KEY_IS(KEY_FLUSH_CTX)) {
2164 sptlrpc_import_flush_my_ctx(imp);
2167 if (KEY_IS(KEY_MDS_CONN)) {
2168 /* mds-mds import */
2169 spin_lock(&imp->imp_lock);
2170 imp->imp_server_timeout = 1;
2171 spin_unlock(&imp->imp_lock);
2172 imp->imp_client->cli_request_portal = MDS_MDS_PORTAL;
2173 CDEBUG(D_OTHER, "%s: timeout / 2\n", exp->exp_obd->obd_name);
2176 if (KEY_IS(KEY_CHANGELOG_CLEAR)) {
2177 rc = do_set_info_async(imp, MDS_SET_INFO, LUSTRE_MDS_VERSION,
2178 keylen, key, vallen, val, set);
2181 if (KEY_IS(KEY_HSM_COPYTOOL_SEND)) {
2182 rc = mdc_hsm_copytool_send(vallen, val);
2186 CERROR("Unknown key %s\n", (char *)key);
2190 int mdc_get_info(const struct lu_env *env, struct obd_export *exp,
2191 __u32 keylen, void *key, __u32 *vallen, void *val,
2192 struct lov_stripe_md *lsm)
2196 if (KEY_IS(KEY_MAX_EASIZE)) {
2197 int mdsize, *max_easize;
2199 if (*vallen != sizeof(int))
2201 mdsize = *(int*)val;
2202 if (mdsize > exp->exp_obd->u.cli.cl_max_mds_easize)
2203 exp->exp_obd->u.cli.cl_max_mds_easize = mdsize;
2205 *max_easize = exp->exp_obd->u.cli.cl_max_mds_easize;
2207 } else if (KEY_IS(KEY_CONN_DATA)) {
2208 struct obd_import *imp = class_exp2cliimp(exp);
2209 struct obd_connect_data *data = val;
2211 if (*vallen != sizeof(*data))
2214 *data = imp->imp_connect_data;
2216 } else if (KEY_IS(KEY_TGT_COUNT)) {
2221 rc = mdc_get_info_rpc(exp, keylen, key, *vallen, val);
2226 static int mdc_pin(struct obd_export *exp, const struct lu_fid *fid,
2227 struct obd_capa *oc, struct obd_client_handle *handle,
2230 struct ptlrpc_request *req;
2231 struct mdt_body *body;
2235 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_PIN);
2239 mdc_set_capa_size(req, &RMF_CAPA1, oc);
2241 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_PIN);
2243 ptlrpc_request_free(req);
2247 mdc_pack_body(req, fid, oc, 0, 0, -1, flags);
2249 ptlrpc_request_set_replen(req);
2251 mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
2252 rc = ptlrpc_queue_wait(req);
2253 mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
2255 CERROR("Pin failed: %d\n", rc);
2259 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
2261 GOTO(err_out, rc = -EPROTO);
2263 handle->och_fh = body->handle;
2264 handle->och_magic = OBD_CLIENT_HANDLE_MAGIC;
2266 handle->och_mod = obd_mod_alloc();
2267 if (handle->och_mod == NULL) {
2268 DEBUG_REQ(D_ERROR, req, "can't allocate md_open_data");
2269 GOTO(err_out, rc = -ENOMEM);
2271 handle->och_mod->mod_open_req = req; /* will be dropped by unpin */
2276 ptlrpc_req_finished(req);
2280 static int mdc_unpin(struct obd_export *exp, struct obd_client_handle *handle,
2283 struct ptlrpc_request *req;
2284 struct mdt_body *body;
2288 req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), &RQF_MDS_UNPIN,
2289 LUSTRE_MDS_VERSION, MDS_UNPIN);
2293 body = req_capsule_client_get(&req->rq_pill, &RMF_MDT_BODY);
2294 body->handle = handle->och_fh;
2297 ptlrpc_request_set_replen(req);
2299 mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
2300 rc = ptlrpc_queue_wait(req);
2301 mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
2304 CERROR("Unpin failed: %d\n", rc);
2306 ptlrpc_req_finished(req);
2307 ptlrpc_req_finished(handle->och_mod->mod_open_req);
2309 obd_mod_put(handle->och_mod);
2313 int mdc_sync(struct obd_export *exp, const struct lu_fid *fid,
2314 struct obd_capa *oc, struct ptlrpc_request **request)
2316 struct ptlrpc_request *req;
2321 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_SYNC);
2325 mdc_set_capa_size(req, &RMF_CAPA1, oc);
2327 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_SYNC);
2329 ptlrpc_request_free(req);
2333 mdc_pack_body(req, fid, oc, 0, 0, -1, 0);
2335 ptlrpc_request_set_replen(req);
2337 rc = ptlrpc_queue_wait(req);
2339 ptlrpc_req_finished(req);
2345 static int mdc_import_event(struct obd_device *obd, struct obd_import *imp,
2346 enum obd_import_event event)
2350 LASSERT(imp->imp_obd == obd);
2353 case IMP_EVENT_DISCON: {
2355 /* XXX Pass event up to OBDs stack. used only for FLD now */
2356 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_DISCON, NULL);
2360 case IMP_EVENT_INACTIVE: {
2361 struct client_obd *cli = &obd->u.cli;
2363 * Flush current sequence to make client obtain new one
2364 * from server in case of disconnect/reconnect.
2366 if (cli->cl_seq != NULL)
2367 seq_client_flush(cli->cl_seq);
2369 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_INACTIVE, NULL);
2372 case IMP_EVENT_INVALIDATE: {
2373 struct ldlm_namespace *ns = obd->obd_namespace;
2375 ldlm_namespace_cleanup(ns, LDLM_FL_LOCAL_ONLY);
2379 case IMP_EVENT_ACTIVE:
2380 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_ACTIVE, NULL);
2381 /* restore re-establish kuc registration after reconnecting */
2383 rc = mdc_kuc_reregister(imp);
2386 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_OCD, NULL);
2388 case IMP_EVENT_DEACTIVATE:
2389 case IMP_EVENT_ACTIVATE:
2392 CERROR("Unknown import event %x\n", event);
2398 int mdc_fid_alloc(struct obd_export *exp, struct lu_fid *fid,
2399 struct md_op_data *op_data)
2401 struct client_obd *cli = &exp->exp_obd->u.cli;
2402 struct lu_client_seq *seq = cli->cl_seq;
2404 RETURN(seq_client_alloc_fid(NULL, seq, fid));
2407 struct obd_uuid *mdc_get_uuid(struct obd_export *exp) {
2408 struct client_obd *cli = &exp->exp_obd->u.cli;
2409 return &cli->cl_target_uuid;
2413 * Determine whether the lock can be canceled before replaying it during
2414 * recovery, non zero value will be return if the lock can be canceled,
2415 * or zero returned for not
2417 static int mdc_cancel_for_recovery(struct ldlm_lock *lock)
2419 if (lock->l_resource->lr_type != LDLM_IBITS)
2422 /* FIXME: if we ever get into a situation where there are too many
2423 * opened files with open locks on a single node, then we really
2424 * should replay these open locks to reget it */
2425 if (lock->l_policy_data.l_inodebits.bits & MDS_INODELOCK_OPEN)
2431 static int mdc_resource_inode_free(struct ldlm_resource *res)
2433 if (res->lr_lvb_inode)
2434 res->lr_lvb_inode = NULL;
2439 struct ldlm_valblock_ops inode_lvbo = {
2440 lvbo_free: mdc_resource_inode_free
2443 static int mdc_setup(struct obd_device *obd, struct lustre_cfg *cfg)
2445 struct client_obd *cli = &obd->u.cli;
2446 struct lprocfs_static_vars lvars = { 0 };
2450 OBD_ALLOC(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
2451 if (!cli->cl_rpc_lock)
2453 mdc_init_rpc_lock(cli->cl_rpc_lock);
2457 OBD_ALLOC(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
2458 if (!cli->cl_close_lock)
2459 GOTO(err_rpc_lock, rc = -ENOMEM);
2460 mdc_init_rpc_lock(cli->cl_close_lock);
2462 rc = client_obd_setup(obd, cfg);
2464 GOTO(err_close_lock, rc);
2465 lprocfs_mdc_init_vars(&lvars);
2466 lprocfs_obd_setup(obd, lvars.obd_vars);
2467 sptlrpc_lprocfs_cliobd_attach(obd);
2468 ptlrpc_lprocfs_register_obd(obd);
2470 ns_register_cancel(obd->obd_namespace, mdc_cancel_for_recovery);
2472 obd->obd_namespace->ns_lvbo = &inode_lvbo;
2474 rc = obd_llog_init(obd, &obd->obd_olg, obd, NULL);
2477 CERROR("failed to setup llogging subsystems\n");
2483 OBD_FREE(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
2485 OBD_FREE(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
2490 /* Initialize the default and maximum LOV EA and cookie sizes. This allows
2491 * us to make MDS RPCs with large enough reply buffers to hold the
2492 * maximum-sized (= maximum striped) EA and cookie without having to
2493 * calculate this (via a call into the LOV + OSCs) each time we make an RPC. */
2494 static int mdc_init_ea_size(struct obd_export *exp, int easize,
2495 int def_easize, int cookiesize)
2497 struct obd_device *obd = exp->exp_obd;
2498 struct client_obd *cli = &obd->u.cli;
2501 if (cli->cl_max_mds_easize < easize)
2502 cli->cl_max_mds_easize = easize;
2504 if (cli->cl_default_mds_easize < def_easize)
2505 cli->cl_default_mds_easize = def_easize;
2507 if (cli->cl_max_mds_cookiesize < cookiesize)
2508 cli->cl_max_mds_cookiesize = cookiesize;
2513 static int mdc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
2519 case OBD_CLEANUP_EARLY:
2521 case OBD_CLEANUP_EXPORTS:
2522 /* Failsafe, ok if racy */
2523 if (obd->obd_type->typ_refcnt <= 1)
2524 libcfs_kkuc_group_rem(0, KUC_GRP_HSM);
2526 obd_cleanup_client_import(obd);
2527 ptlrpc_lprocfs_unregister_obd(obd);
2528 lprocfs_obd_cleanup(obd);
2530 rc = obd_llog_finish(obd, 0);
2532 CERROR("failed to cleanup llogging subsystems\n");
2538 static int mdc_cleanup(struct obd_device *obd)
2540 struct client_obd *cli = &obd->u.cli;
2542 OBD_FREE(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
2543 OBD_FREE(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
2547 return client_obd_cleanup(obd);
2551 static int mdc_llog_init(struct obd_device *obd, struct obd_llog_group *olg,
2552 struct obd_device *tgt, int *index)
2554 struct llog_ctxt *ctxt;
2559 LASSERT(olg == &obd->obd_olg);
2561 rc = llog_setup(NULL, obd, olg, LLOG_CHANGELOG_REPL_CTXT, tgt,
2566 ctxt = llog_group_get_ctxt(olg, LLOG_CHANGELOG_REPL_CTXT);
2567 llog_initiator_connect(ctxt);
2568 llog_ctxt_put(ctxt);
2573 static int mdc_llog_finish(struct obd_device *obd, int count)
2575 struct llog_ctxt *ctxt;
2579 ctxt = llog_get_context(obd, LLOG_CHANGELOG_REPL_CTXT);
2581 llog_cleanup(NULL, ctxt);
2586 static int mdc_process_config(struct obd_device *obd, obd_count len, void *buf)
2588 struct lustre_cfg *lcfg = buf;
2589 struct lprocfs_static_vars lvars = { 0 };
2592 lprocfs_mdc_init_vars(&lvars);
2593 switch (lcfg->lcfg_command) {
2595 rc = class_process_proc_param(PARAM_MDC, lvars.obd_vars,
2605 /* get remote permission for current user on fid */
2606 int mdc_get_remote_perm(struct obd_export *exp, const struct lu_fid *fid,
2607 struct obd_capa *oc, __u32 suppgid,
2608 struct ptlrpc_request **request)
2610 struct ptlrpc_request *req;
2614 LASSERT(client_is_remote(exp));
2617 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_GETATTR);
2621 mdc_set_capa_size(req, &RMF_CAPA1, oc);
2623 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR);
2625 ptlrpc_request_free(req);
2629 mdc_pack_body(req, fid, oc, OBD_MD_FLRMTPERM, 0, suppgid, 0);
2631 req_capsule_set_size(&req->rq_pill, &RMF_ACL, RCL_SERVER,
2632 sizeof(struct mdt_remote_perm));
2634 ptlrpc_request_set_replen(req);
2636 rc = ptlrpc_queue_wait(req);
2638 ptlrpc_req_finished(req);
2644 static int mdc_interpret_renew_capa(const struct lu_env *env,
2645 struct ptlrpc_request *req, void *args,
2648 struct mdc_renew_capa_args *ra = args;
2649 struct mdt_body *body = NULL;
2650 struct lustre_capa *capa;
2654 GOTO(out, capa = ERR_PTR(status));
2656 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
2658 GOTO(out, capa = ERR_PTR(-EFAULT));
2660 if ((body->valid & OBD_MD_FLOSSCAPA) == 0)
2661 GOTO(out, capa = ERR_PTR(-ENOENT));
2663 capa = req_capsule_server_get(&req->rq_pill, &RMF_CAPA2);
2665 GOTO(out, capa = ERR_PTR(-EFAULT));
2668 ra->ra_cb(ra->ra_oc, capa);
2672 static int mdc_renew_capa(struct obd_export *exp, struct obd_capa *oc,
2675 struct ptlrpc_request *req;
2676 struct mdc_renew_capa_args *ra;
2679 req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), &RQF_MDS_GETATTR,
2680 LUSTRE_MDS_VERSION, MDS_GETATTR);
2684 /* NB, OBD_MD_FLOSSCAPA is set here, but it doesn't necessarily mean the
2685 * capa to renew is oss capa.
2687 mdc_pack_body(req, &oc->c_capa.lc_fid, oc, OBD_MD_FLOSSCAPA, 0, -1, 0);
2688 ptlrpc_request_set_replen(req);
2690 CLASSERT(sizeof(*ra) <= sizeof(req->rq_async_args));
2691 ra = ptlrpc_req_async_args(req);
2694 req->rq_interpret_reply = mdc_interpret_renew_capa;
2695 ptlrpcd_add_req(req, PDL_POLICY_LOCAL, -1);
2699 static int mdc_connect(const struct lu_env *env,
2700 struct obd_export **exp,
2701 struct obd_device *obd, struct obd_uuid *cluuid,
2702 struct obd_connect_data *data,
2705 struct obd_import *imp = obd->u.cli.cl_import;
2707 /* mds-mds import features */
2708 if (data && (data->ocd_connect_flags & OBD_CONNECT_MDS_MDS)) {
2709 spin_lock(&imp->imp_lock);
2710 imp->imp_server_timeout = 1;
2711 spin_unlock(&imp->imp_lock);
2712 imp->imp_client->cli_request_portal = MDS_MDS_PORTAL;
2713 CDEBUG(D_OTHER, "%s: Set 'mds' portal and timeout\n",
2717 return client_connect_import(env, exp, obd, cluuid, data, NULL);
2720 struct obd_ops mdc_obd_ops = {
2721 .o_owner = THIS_MODULE,
2722 .o_setup = mdc_setup,
2723 .o_precleanup = mdc_precleanup,
2724 .o_cleanup = mdc_cleanup,
2725 .o_add_conn = client_import_add_conn,
2726 .o_del_conn = client_import_del_conn,
2727 .o_connect = mdc_connect,
2728 .o_disconnect = client_disconnect_export,
2729 .o_iocontrol = mdc_iocontrol,
2730 .o_set_info_async = mdc_set_info_async,
2731 .o_statfs = mdc_statfs,
2733 .o_unpin = mdc_unpin,
2734 .o_fid_init = client_fid_init,
2735 .o_fid_fini = client_fid_fini,
2736 .o_fid_alloc = mdc_fid_alloc,
2737 .o_import_event = mdc_import_event,
2738 .o_llog_init = mdc_llog_init,
2739 .o_llog_finish = mdc_llog_finish,
2740 .o_get_info = mdc_get_info,
2741 .o_process_config = mdc_process_config,
2742 .o_get_uuid = mdc_get_uuid,
2743 .o_quotactl = mdc_quotactl,
2744 .o_quotacheck = mdc_quotacheck
2747 struct md_ops mdc_md_ops = {
2748 .m_getstatus = mdc_getstatus,
2749 .m_null_inode = mdc_null_inode,
2750 .m_find_cbdata = mdc_find_cbdata,
2751 .m_close = mdc_close,
2752 .m_create = mdc_create,
2753 .m_done_writing = mdc_done_writing,
2754 .m_enqueue = mdc_enqueue,
2755 .m_getattr = mdc_getattr,
2756 .m_getattr_name = mdc_getattr_name,
2757 .m_intent_lock = mdc_intent_lock,
2759 .m_is_subdir = mdc_is_subdir,
2760 .m_rename = mdc_rename,
2761 .m_setattr = mdc_setattr,
2762 .m_setxattr = mdc_setxattr,
2763 .m_getxattr = mdc_getxattr,
2765 .m_readpage = mdc_readpage,
2766 .m_unlink = mdc_unlink,
2767 .m_cancel_unused = mdc_cancel_unused,
2768 .m_init_ea_size = mdc_init_ea_size,
2769 .m_set_lock_data = mdc_set_lock_data,
2770 .m_lock_match = mdc_lock_match,
2771 .m_get_lustre_md = mdc_get_lustre_md,
2772 .m_free_lustre_md = mdc_free_lustre_md,
2773 .m_set_open_replay_data = mdc_set_open_replay_data,
2774 .m_clear_open_replay_data = mdc_clear_open_replay_data,
2775 .m_renew_capa = mdc_renew_capa,
2776 .m_unpack_capa = mdc_unpack_capa,
2777 .m_get_remote_perm = mdc_get_remote_perm,
2778 .m_intent_getattr_async = mdc_intent_getattr_async,
2779 .m_revalidate_lock = mdc_revalidate_lock
2782 int __init mdc_init(void)
2785 struct lprocfs_static_vars lvars = { 0 };
2786 lprocfs_mdc_init_vars(&lvars);
2788 rc = class_register_type(&mdc_obd_ops, &mdc_md_ops, lvars.module_vars,
2789 LUSTRE_MDC_NAME, NULL);
2794 static void /*__exit*/ mdc_exit(void)
2796 class_unregister_type(LUSTRE_MDC_NAME);
2799 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
2800 MODULE_DESCRIPTION("Lustre Metadata Client");
2801 MODULE_LICENSE("GPL");
2803 module_init(mdc_init);
2804 module_exit(mdc_exit);