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, 2013, 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
39 #include <linux/module.h>
40 #include <linux/pagemap.h>
41 #include <linux/miscdevice.h>
42 #include <linux/init.h>
43 #include <linux/utsname.h>
45 #include <lustre_acl.h>
46 #include <lustre_ioctl.h>
47 #include <obd_class.h>
48 #include <lustre_lmv.h>
49 #include <lustre_fid.h>
50 #include <lprocfs_status.h>
51 #include <lustre_param.h>
52 #include <lustre_log.h>
53 #include <cl_object.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 static int mdc_unpack_capa(struct obd_export *exp, struct ptlrpc_request *req,
67 const struct req_msg_field *field,
70 struct lustre_capa *capa;
74 /* swabbed already in mdc_enqueue */
75 capa = req_capsule_server_get(&req->rq_pill, field);
79 c = alloc_capa(CAPA_SITE_CLIENT);
81 CDEBUG(D_INFO, "alloc capa failed!\n");
90 static inline int mdc_queue_wait(struct ptlrpc_request *req)
92 struct client_obd *cli = &req->rq_import->imp_obd->u.cli;
95 /* obd_get_request_slot() ensures that this client has no more
96 * than cl_max_rpcs_in_flight RPCs simultaneously inf light
98 rc = obd_get_request_slot(cli);
102 rc = ptlrpc_queue_wait(req);
103 obd_put_request_slot(cli);
108 /* Helper that implements most of mdc_getstatus and signal_completed_replay. */
109 /* XXX this should become mdc_get_info("key"), sending MDS_GET_INFO RPC */
110 static int send_getstatus(struct obd_import *imp, struct lu_fid *rootfid,
111 struct obd_capa **pc, int level, int msg_flags)
113 struct ptlrpc_request *req;
114 struct mdt_body *body;
118 req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_GETSTATUS,
119 LUSTRE_MDS_VERSION, MDS_GETSTATUS);
123 mdc_pack_body(req, NULL, NULL, 0, 0, -1, 0);
124 lustre_msg_add_flags(req->rq_reqmsg, msg_flags);
125 req->rq_send_state = level;
127 ptlrpc_request_set_replen(req);
129 rc = ptlrpc_queue_wait(req);
133 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
135 GOTO(out, rc = -EPROTO);
137 if (body->mbo_valid & OBD_MD_FLMDSCAPA) {
138 rc = mdc_unpack_capa(NULL, req, &RMF_CAPA1, pc);
143 *rootfid = body->mbo_fid1;
144 CDEBUG(D_NET, "root fid="DFID", last_committed="LPU64"\n",
145 PFID(rootfid), lustre_msg_get_last_committed(req->rq_repmsg));
148 ptlrpc_req_finished(req);
152 /* This should be mdc_get_info("rootfid") */
153 static int mdc_getstatus(struct obd_export *exp, struct lu_fid *rootfid,
154 struct obd_capa **pc)
156 return send_getstatus(class_exp2cliimp(exp), rootfid, pc,
161 * This function now is known to always saying that it will receive 4 buffers
162 * from server. Even for cases when acl_size and md_size is zero, RPC header
163 * will contain 4 fields and RPC itself will contain zero size fields. This is
164 * because mdt_getattr*() _always_ returns 4 fields, but if acl is not needed
165 * and thus zero, it shrinks it, making zero size. The same story about
166 * md_size. And this is course of problem when client waits for smaller number
167 * of fields. This issue will be fixed later when client gets aware of RPC
170 static int mdc_getattr_common(struct obd_export *exp,
171 struct ptlrpc_request *req)
173 struct req_capsule *pill = &req->rq_pill;
174 struct mdt_body *body;
179 /* Request message already built. */
180 rc = ptlrpc_queue_wait(req);
184 /* sanity check for the reply */
185 body = req_capsule_server_get(pill, &RMF_MDT_BODY);
189 CDEBUG(D_NET, "mode: %o\n", body->mbo_mode);
191 mdc_update_max_ea_from_body(exp, body);
192 if (body->mbo_eadatasize != 0) {
193 eadata = req_capsule_server_sized_get(pill, &RMF_MDT_MD,
194 body->mbo_eadatasize);
199 if (body->mbo_valid & OBD_MD_FLRMTPERM) {
200 struct mdt_remote_perm *perm;
202 LASSERT(client_is_remote(exp));
203 perm = req_capsule_server_swab_get(pill, &RMF_ACL,
204 lustre_swab_mdt_remote_perm);
209 if (body->mbo_valid & OBD_MD_FLMDSCAPA) {
210 struct lustre_capa *capa;
211 capa = req_capsule_server_get(pill, &RMF_CAPA1);
219 static int mdc_getattr(struct obd_export *exp, struct md_op_data *op_data,
220 struct ptlrpc_request **request)
222 struct ptlrpc_request *req;
226 /* Single MDS without an LMV case */
227 if (op_data->op_flags & MF_GET_MDT_IDX) {
232 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_GETATTR);
236 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
238 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR);
240 ptlrpc_request_free(req);
244 mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1,
245 op_data->op_valid, op_data->op_mode, -1, 0);
247 req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
249 if (op_data->op_valid & OBD_MD_FLRMTPERM) {
250 LASSERT(client_is_remote(exp));
251 req_capsule_set_size(&req->rq_pill, &RMF_ACL, RCL_SERVER,
252 sizeof(struct mdt_remote_perm));
254 ptlrpc_request_set_replen(req);
256 rc = mdc_getattr_common(exp, req);
258 ptlrpc_req_finished(req);
264 static int mdc_getattr_name(struct obd_export *exp, struct md_op_data *op_data,
265 struct ptlrpc_request **request)
267 struct ptlrpc_request *req;
272 req = ptlrpc_request_alloc(class_exp2cliimp(exp),
273 &RQF_MDS_GETATTR_NAME);
277 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
278 req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
279 op_data->op_namelen + 1);
281 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR_NAME);
283 ptlrpc_request_free(req);
287 mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1,
288 op_data->op_valid, op_data->op_mode,
289 op_data->op_suppgids[0], 0);
291 if (op_data->op_name) {
292 char *name = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
293 LASSERT(strnlen(op_data->op_name, op_data->op_namelen) ==
294 op_data->op_namelen);
295 memcpy(name, op_data->op_name, op_data->op_namelen);
298 req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
300 ptlrpc_request_set_replen(req);
302 rc = mdc_getattr_common(exp, req);
304 ptlrpc_req_finished(req);
310 static int mdc_xattr_common(struct obd_export *exp,const struct req_format *fmt,
311 const struct lu_fid *fid,
312 struct obd_capa *oc, int opcode, obd_valid valid,
313 const char *xattr_name, const char *input,
314 int input_size, int output_size, int flags,
315 __u32 suppgid, struct ptlrpc_request **request)
317 struct ptlrpc_request *req;
318 int xattr_namelen = 0;
324 req = ptlrpc_request_alloc(class_exp2cliimp(exp), fmt);
328 mdc_set_capa_size(req, &RMF_CAPA1, oc);
330 xattr_namelen = strlen(xattr_name) + 1;
331 req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
336 req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_CLIENT,
340 /* Flush local XATTR locks to get rid of a possible cancel RPC */
341 if (opcode == MDS_REINT && fid_is_sane(fid) &&
342 exp->exp_connect_data.ocd_ibits_known & MDS_INODELOCK_XATTR) {
343 struct list_head cancels = LIST_HEAD_INIT(cancels);
346 /* Without that packing would fail */
348 req_capsule_set_size(&req->rq_pill, &RMF_EADATA,
351 count = mdc_resource_get_unused(exp, fid,
353 MDS_INODELOCK_XATTR);
355 rc = mdc_prep_elc_req(exp, req, MDS_REINT, &cancels, count);
357 ptlrpc_request_free(req);
361 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, opcode);
363 ptlrpc_request_free(req);
368 if (opcode == MDS_REINT) {
369 struct mdt_rec_setxattr *rec;
371 CLASSERT(sizeof(struct mdt_rec_setxattr) ==
372 sizeof(struct mdt_rec_reint));
373 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
374 rec->sx_opcode = REINT_SETXATTR;
375 rec->sx_fsuid = from_kuid(&init_user_ns, current_fsuid());
376 rec->sx_fsgid = from_kgid(&init_user_ns, current_fsgid());
377 rec->sx_cap = cfs_curproc_cap_pack();
378 rec->sx_suppgid1 = suppgid;
379 rec->sx_suppgid2 = -1;
381 rec->sx_valid = valid | OBD_MD_FLCTIME;
382 rec->sx_time = cfs_time_current_sec();
383 rec->sx_size = output_size;
384 rec->sx_flags = flags;
386 mdc_pack_capa(req, &RMF_CAPA1, oc);
388 mdc_pack_body(req, fid, oc, valid, output_size, suppgid, flags);
392 tmp = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
393 memcpy(tmp, xattr_name, xattr_namelen);
396 tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
397 memcpy(tmp, input, input_size);
400 if (req_capsule_has_field(&req->rq_pill, &RMF_EADATA, RCL_SERVER))
401 req_capsule_set_size(&req->rq_pill, &RMF_EADATA,
402 RCL_SERVER, output_size);
403 ptlrpc_request_set_replen(req);
406 if (opcode == MDS_REINT)
407 mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
409 rc = ptlrpc_queue_wait(req);
411 if (opcode == MDS_REINT)
412 mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
415 ptlrpc_req_finished(req);
421 static int mdc_setxattr(struct obd_export *exp, const struct lu_fid *fid,
422 struct obd_capa *oc, obd_valid valid,
423 const char *xattr_name,
424 const char *input, int input_size, int output_size,
425 int flags, __u32 suppgid,
426 struct ptlrpc_request **request)
428 return mdc_xattr_common(exp, &RQF_MDS_REINT_SETXATTR,
429 fid, oc, MDS_REINT, valid, xattr_name,
430 input, input_size, output_size, flags,
434 static int mdc_getxattr(struct obd_export *exp, const struct lu_fid *fid,
435 struct obd_capa *oc, obd_valid valid,
436 const char *xattr_name,
437 const char *input, int input_size, int output_size,
438 int flags, struct ptlrpc_request **request)
440 return mdc_xattr_common(exp, &RQF_MDS_GETXATTR,
441 fid, oc, MDS_GETXATTR, valid, xattr_name,
442 input, input_size, output_size, flags,
446 #ifdef CONFIG_FS_POSIX_ACL
447 static int mdc_unpack_acl(struct ptlrpc_request *req, struct lustre_md *md)
449 struct req_capsule *pill = &req->rq_pill;
450 struct mdt_body *body = md->body;
451 struct posix_acl *acl;
456 if (!body->mbo_aclsize)
459 buf = req_capsule_server_sized_get(pill, &RMF_ACL, body->mbo_aclsize);
464 acl = posix_acl_from_xattr(&init_user_ns, buf, body->mbo_aclsize);
469 CERROR("convert xattr to acl: %d\n", rc);
473 rc = posix_acl_valid(acl);
475 CERROR("validate acl: %d\n", rc);
476 posix_acl_release(acl);
484 #define mdc_unpack_acl(req, md) 0
487 int mdc_get_lustre_md(struct obd_export *exp, struct ptlrpc_request *req,
488 struct obd_export *dt_exp, struct obd_export *md_exp,
489 struct lustre_md *md)
491 struct req_capsule *pill = &req->rq_pill;
496 memset(md, 0, sizeof(*md));
498 md->body = req_capsule_server_get(pill, &RMF_MDT_BODY);
499 LASSERT(md->body != NULL);
501 if (md->body->mbo_valid & OBD_MD_FLEASIZE) {
503 struct lov_mds_md *lmm;
505 if (!S_ISREG(md->body->mbo_mode)) {
506 CDEBUG(D_INFO, "OBD_MD_FLEASIZE set, should be a "
507 "regular file, but is not\n");
508 GOTO(out, rc = -EPROTO);
511 if (md->body->mbo_eadatasize == 0) {
512 CDEBUG(D_INFO, "OBD_MD_FLEASIZE set, "
513 "but eadatasize 0\n");
514 GOTO(out, rc = -EPROTO);
517 lmmsize = md->body->mbo_eadatasize;
518 lmm = req_capsule_server_sized_get(pill, &RMF_MDT_MD, lmmsize);
520 GOTO(out, rc = -EPROTO);
522 rc = obd_unpackmd(dt_exp, &md->lsm, lmm, lmmsize);
526 if (rc < (typeof(rc))sizeof(*md->lsm)) {
527 CDEBUG(D_INFO, "lsm size too small: "
528 "rc < sizeof (*md->lsm) (%d < %d)\n",
529 rc, (int)sizeof(*md->lsm));
530 GOTO(out, rc = -EPROTO);
533 } else if (md->body->mbo_valid & OBD_MD_FLDIREA) {
535 struct lov_mds_md *lmv;
537 if (!S_ISDIR(md->body->mbo_mode)) {
538 CDEBUG(D_INFO, "OBD_MD_FLDIREA set, should be a "
539 "directory, but is not\n");
540 GOTO(out, rc = -EPROTO);
543 if (md->body->mbo_eadatasize == 0) {
544 CDEBUG(D_INFO, "OBD_MD_FLDIREA is set, "
545 "but eadatasize 0\n");
549 if (md->body->mbo_valid & OBD_MD_MEA) {
550 lmvsize = md->body->mbo_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->lmv, lmv,
561 if (rc < (typeof(rc))sizeof(*md->lmv)) {
562 CDEBUG(D_INFO, "size too small: "
563 "rc < sizeof(*md->lmv) (%d < %d)\n",
564 rc, (int)sizeof(*md->lmv));
565 GOTO(out, rc = -EPROTO);
571 if (md->body->mbo_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);
578 } else if (md->body->mbo_valid & OBD_MD_FLACL) {
579 /* for ACL, it's possible that FLACL is set but aclsize is zero.
580 * only when aclsize != 0 there's an actual segment for ACL
583 if (md->body->mbo_aclsize) {
584 rc = mdc_unpack_acl(req, md);
587 #ifdef CONFIG_FS_POSIX_ACL
589 md->posix_acl = NULL;
593 if (md->body->mbo_valid & OBD_MD_FLMDSCAPA) {
594 struct obd_capa *oc = NULL;
596 rc = mdc_unpack_capa(NULL, req, &RMF_CAPA1, &oc);
602 if (md->body->mbo_valid & OBD_MD_FLOSSCAPA) {
603 struct obd_capa *oc = NULL;
605 rc = mdc_unpack_capa(NULL, req, &RMF_CAPA2, &oc);
615 capa_put(md->oss_capa);
619 capa_put(md->mds_capa);
622 #ifdef CONFIG_FS_POSIX_ACL
623 posix_acl_release(md->posix_acl);
626 obd_free_memmd(dt_exp, &md->lsm);
631 int mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md)
638 * Handles both OPEN and SETATTR RPCs for OPEN-CLOSE and SETATTR-DONE_WRITING
641 void mdc_replay_open(struct ptlrpc_request *req)
643 struct md_open_data *mod = req->rq_cb_data;
644 struct ptlrpc_request *close_req;
645 struct obd_client_handle *och;
646 struct lustre_handle old;
647 struct mdt_body *body;
651 DEBUG_REQ(D_ERROR, req,
652 "Can't properly replay without open data.");
657 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
658 LASSERT(body != NULL);
662 struct lustre_handle *file_fh;
664 LASSERT(och->och_magic == OBD_CLIENT_HANDLE_MAGIC);
666 file_fh = &och->och_fh;
667 CDEBUG(D_HA, "updating handle from "LPX64" to "LPX64"\n",
668 file_fh->cookie, body->mbo_handle.cookie);
670 *file_fh = body->mbo_handle;
672 close_req = mod->mod_close_req;
673 if (close_req != NULL) {
674 __u32 opc = lustre_msg_get_opc(close_req->rq_reqmsg);
675 struct mdt_ioepoch *epoch;
677 LASSERT(opc == MDS_CLOSE || opc == MDS_DONE_WRITING);
678 epoch = req_capsule_client_get(&close_req->rq_pill,
683 LASSERT(!memcmp(&old, &epoch->handle, sizeof(old)));
684 DEBUG_REQ(D_HA, close_req, "updating close body with new fh");
685 epoch->handle = body->mbo_handle;
690 void mdc_commit_open(struct ptlrpc_request *req)
692 struct md_open_data *mod = req->rq_cb_data;
697 * No need to touch md_open_data::mod_och, it holds a reference on
698 * \var mod and will zero references to each other, \var mod will be
699 * freed after that when md_open_data::mod_och will put the reference.
703 * Do not let open request to disappear as it still may be needed
704 * for close rpc to happen (it may happen on evict only, otherwise
705 * ptlrpc_request::rq_replay does not let mdc_commit_open() to be
706 * called), just mark this rpc as committed to distinguish these 2
707 * cases, see mdc_close() for details. The open request reference will
708 * be put along with freeing \var mod.
710 ptlrpc_request_addref(req);
711 spin_lock(&req->rq_lock);
712 req->rq_committed = 1;
713 spin_unlock(&req->rq_lock);
714 req->rq_cb_data = NULL;
718 int mdc_set_open_replay_data(struct obd_export *exp,
719 struct obd_client_handle *och,
720 struct lookup_intent *it)
722 struct md_open_data *mod;
723 struct mdt_rec_create *rec;
724 struct mdt_body *body;
725 struct ptlrpc_request *open_req = it->d.lustre.it_data;
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_is_create = it_disposition(it, DISP_OPEN_CREATE) ||
761 it_disposition(it, DISP_OPEN_STRIPE);
762 mod->mod_open_req = open_req;
763 open_req->rq_cb_data = mod;
764 open_req->rq_commit_cb = mdc_commit_open;
765 spin_unlock(&open_req->rq_lock);
768 rec->cr_fid2 = body->mbo_fid1;
769 rec->cr_ioepoch = body->mbo_ioepoch;
770 rec->cr_old_handle.cookie = body->mbo_handle.cookie;
771 open_req->rq_replay_cb = mdc_replay_open;
772 if (!fid_is_sane(&body->mbo_fid1)) {
773 DEBUG_REQ(D_ERROR, open_req, "Saving replay request with "
778 DEBUG_REQ(D_RPCTRACE, open_req, "Set up open replay data");
782 static void mdc_free_open(struct md_open_data *mod)
786 if (mod->mod_is_create == 0 &&
787 imp_connect_disp_stripe(mod->mod_open_req->rq_import))
790 LASSERT(mod->mod_open_req->rq_replay == 0);
792 DEBUG_REQ(D_RPCTRACE, mod->mod_open_req, "free open request\n");
794 ptlrpc_request_committed(mod->mod_open_req, committed);
795 if (mod->mod_close_req)
796 ptlrpc_request_committed(mod->mod_close_req, committed);
799 int mdc_clear_open_replay_data(struct obd_export *exp,
800 struct obd_client_handle *och)
802 struct md_open_data *mod = och->och_mod;
806 * It is possible to not have \var mod in a case of eviction between
807 * lookup and ll_file_open().
812 LASSERT(mod != LP_POISON);
813 LASSERT(mod->mod_open_req != NULL);
823 /* Prepares the request for the replay by the given reply */
824 static void mdc_close_handle_reply(struct ptlrpc_request *req,
825 struct md_op_data *op_data, int rc) {
826 struct mdt_body *repbody;
827 struct mdt_ioepoch *epoch;
829 if (req && rc == -EAGAIN) {
830 repbody = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
831 epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
833 epoch->flags |= MF_SOM_AU;
834 if (repbody->mbo_valid & OBD_MD_FLGETATTRLOCK)
835 op_data->op_flags |= MF_GETATTR_LOCK;
839 static int mdc_close(struct obd_export *exp, struct md_op_data *op_data,
840 struct md_open_data *mod, struct ptlrpc_request **request)
842 struct obd_device *obd = class_exp2obd(exp);
843 struct ptlrpc_request *req;
844 struct req_format *req_fmt;
849 req_fmt = &RQF_MDS_CLOSE;
850 if (op_data->op_bias & MDS_HSM_RELEASE) {
851 req_fmt = &RQF_MDS_RELEASE_CLOSE;
853 /* allocate a FID for volatile file */
854 rc = mdc_fid_alloc(NULL, exp, &op_data->op_fid2, op_data);
856 CERROR("%s: "DFID" failed to allocate FID: %d\n",
857 obd->obd_name, PFID(&op_data->op_fid1), rc);
858 /* save the errcode and proceed to close */
864 req = ptlrpc_request_alloc(class_exp2cliimp(exp), req_fmt);
868 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
870 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_CLOSE);
872 ptlrpc_request_free(req);
876 /* To avoid a livelock (bug 7034), we need to send CLOSE RPCs to a
877 * portal whose threads are not taking any DLM locks and are therefore
878 * always progressing */
879 req->rq_request_portal = MDS_READPAGE_PORTAL;
880 ptlrpc_at_set_req_timeout(req);
882 /* Ensure that this close's handle is fixed up during replay. */
883 if (likely(mod != NULL)) {
884 LASSERTF(mod->mod_open_req != NULL &&
885 mod->mod_open_req->rq_type != LI_POISON,
886 "POISONED open %p!\n", mod->mod_open_req);
888 mod->mod_close_req = req;
890 DEBUG_REQ(D_HA, mod->mod_open_req, "matched open");
891 /* We no longer want to preserve this open for replay even
892 * though the open was committed. b=3632, b=3633 */
893 spin_lock(&mod->mod_open_req->rq_lock);
894 mod->mod_open_req->rq_replay = 0;
895 spin_unlock(&mod->mod_open_req->rq_lock);
897 CDEBUG(D_HA, "couldn't find open req; expecting close error\n");
900 mdc_close_pack(req, op_data);
902 req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
903 obd->u.cli.cl_default_mds_easize);
904 req_capsule_set_size(&req->rq_pill, &RMF_LOGCOOKIES, RCL_SERVER,
905 obd->u.cli.cl_default_mds_cookiesize);
907 ptlrpc_request_set_replen(req);
909 mdc_get_rpc_lock(obd->u.cli.cl_close_lock, NULL);
910 rc = ptlrpc_queue_wait(req);
911 mdc_put_rpc_lock(obd->u.cli.cl_close_lock, NULL);
913 if (req->rq_repmsg == NULL) {
914 CDEBUG(D_RPCTRACE, "request failed to send: %p, %d\n", req,
917 rc = req->rq_status ?: -EIO;
918 } else if (rc == 0 || rc == -EAGAIN) {
919 struct mdt_body *body;
921 rc = lustre_msg_get_status(req->rq_repmsg);
922 if (lustre_msg_get_type(req->rq_repmsg) == PTL_RPC_MSG_ERR) {
923 DEBUG_REQ(D_ERROR, req, "type == PTL_RPC_MSG_ERR, err "
928 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
931 } else if (rc == -ESTALE) {
933 * it can be allowed error after 3633 if open was committed and
934 * server failed before close was sent. Let's check if mod
935 * exists and return no error in that case
938 DEBUG_REQ(D_HA, req, "Reset ESTALE = %d", rc);
939 LASSERT(mod->mod_open_req != NULL);
940 if (mod->mod_open_req->rq_committed)
947 mod->mod_close_req = NULL;
948 /* Since now, mod is accessed through open_req only,
949 * thus close req does not keep a reference on mod anymore. */
953 mdc_close_handle_reply(req, op_data, rc);
954 RETURN(rc < 0 ? rc : saved_rc);
957 static int mdc_done_writing(struct obd_export *exp, struct md_op_data *op_data,
958 struct md_open_data *mod)
960 struct obd_device *obd = class_exp2obd(exp);
961 struct ptlrpc_request *req;
965 req = ptlrpc_request_alloc(class_exp2cliimp(exp),
966 &RQF_MDS_DONE_WRITING);
970 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
971 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_DONE_WRITING);
973 ptlrpc_request_free(req);
978 LASSERTF(mod->mod_open_req != NULL &&
979 mod->mod_open_req->rq_type != LI_POISON,
980 "POISONED setattr %p!\n", mod->mod_open_req);
982 mod->mod_close_req = req;
983 DEBUG_REQ(D_HA, mod->mod_open_req, "matched setattr");
984 /* We no longer want to preserve this setattr for replay even
985 * though the open was committed. b=3632, b=3633 */
986 spin_lock(&mod->mod_open_req->rq_lock);
987 mod->mod_open_req->rq_replay = 0;
988 spin_unlock(&mod->mod_open_req->rq_lock);
991 mdc_close_pack(req, op_data);
992 ptlrpc_request_set_replen(req);
994 mdc_get_rpc_lock(obd->u.cli.cl_close_lock, NULL);
995 rc = ptlrpc_queue_wait(req);
996 mdc_put_rpc_lock(obd->u.cli.cl_close_lock, NULL);
1000 * it can be allowed error after 3633 if open or setattr were
1001 * committed and server failed before close was sent.
1002 * Let's check if mod exists and return no error in that case
1005 LASSERT(mod->mod_open_req != NULL);
1006 if (mod->mod_open_req->rq_committed)
1013 mod->mod_close_req = NULL;
1014 LASSERT(mod->mod_open_req != NULL);
1017 /* Since now, mod is accessed through setattr req only,
1018 * thus DW req does not keep a reference on mod anymore. */
1022 mdc_close_handle_reply(req, op_data, rc);
1023 ptlrpc_req_finished(req);
1027 #ifdef HAVE_SPLIT_SUPPORT
1028 int mdc_sendpage(struct obd_export *exp, const struct lu_fid *fid,
1029 const struct page *page, int offset)
1031 struct ptlrpc_request *req;
1032 struct ptlrpc_bulk_desc *desc;
1036 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_WRITEPAGE);
1040 /* FIXME: capa doesn't support split yet */
1041 mdc_set_capa_size(req, &RMF_CAPA1, NULL);
1043 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_WRITEPAGE);
1045 ptlrpc_request_free(req);
1049 req->rq_request_portal = MDS_READPAGE_PORTAL;
1050 ptlrpc_at_set_req_timeout(req);
1052 desc = ptlrpc_prep_bulk_imp(req, 1, 1,BULK_GET_SOURCE, MDS_BULK_PORTAL);
1054 GOTO(out, rc = -ENOMEM);
1056 /* NB req now owns desc and will free it when it gets freed. */
1057 ptlrpc_prep_bulk_page(desc, (struct page *)page, 0, offset);
1058 mdc_readdir_pack(req, 0, offset, fid, NULL);
1060 ptlrpc_request_set_replen(req);
1061 rc = ptlrpc_queue_wait(req);
1065 rc = sptlrpc_cli_unwrap_bulk_write(req, req->rq_bulk);
1067 ptlrpc_req_finished(req);
1070 EXPORT_SYMBOL(mdc_sendpage);
1073 static int mdc_getpage(struct obd_export *exp, const struct lu_fid *fid,
1074 __u64 offset, struct obd_capa *oc,
1075 struct page **pages, int npages,
1076 struct ptlrpc_request **request)
1078 struct ptlrpc_request *req;
1079 struct ptlrpc_bulk_desc *desc;
1081 wait_queue_head_t waitq;
1083 struct l_wait_info lwi;
1088 init_waitqueue_head(&waitq);
1091 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_READPAGE);
1095 mdc_set_capa_size(req, &RMF_CAPA1, oc);
1097 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_READPAGE);
1099 ptlrpc_request_free(req);
1103 req->rq_request_portal = MDS_READPAGE_PORTAL;
1104 ptlrpc_at_set_req_timeout(req);
1106 desc = ptlrpc_prep_bulk_imp(req, npages, 1, BULK_PUT_SINK,
1109 ptlrpc_request_free(req);
1113 /* NB req now owns desc and will free it when it gets freed */
1114 for (i = 0; i < npages; i++)
1115 ptlrpc_prep_bulk_page_pin(desc, pages[i], 0, PAGE_CACHE_SIZE);
1117 mdc_readdir_pack(req, offset, PAGE_CACHE_SIZE * npages, fid, oc);
1119 ptlrpc_request_set_replen(req);
1120 rc = ptlrpc_queue_wait(req);
1122 ptlrpc_req_finished(req);
1123 if (rc != -ETIMEDOUT)
1127 if (!client_should_resend(resends, &exp->exp_obd->u.cli)) {
1128 CERROR("%s: too many resend retries: rc = %d\n",
1129 exp->exp_obd->obd_name, -EIO);
1132 lwi = LWI_TIMEOUT_INTR(cfs_time_seconds(resends), NULL, NULL,
1134 l_wait_event(waitq, 0, &lwi);
1139 rc = sptlrpc_cli_unwrap_bulk_read(req, req->rq_bulk,
1140 req->rq_bulk->bd_nob_transferred);
1142 ptlrpc_req_finished(req);
1146 if (req->rq_bulk->bd_nob_transferred & ~LU_PAGE_MASK) {
1147 CERROR("%s: unexpected bytes transferred: %d (%ld expected)\n",
1148 exp->exp_obd->obd_name, req->rq_bulk->bd_nob_transferred,
1149 PAGE_CACHE_SIZE * npages);
1150 ptlrpc_req_finished(req);
1158 static void mdc_release_page(struct page *page, int remove)
1162 if (likely(page->mapping != NULL))
1163 truncate_complete_page(page->mapping, page);
1166 page_cache_release(page);
1169 static struct page *mdc_page_locate(struct address_space *mapping, __u64 *hash,
1170 __u64 *start, __u64 *end, int hash64)
1173 * Complement of hash is used as an index so that
1174 * radix_tree_gang_lookup() can be used to find a page with starting
1175 * hash _smaller_ than one we are looking for.
1177 unsigned long offset = hash_x_index(*hash, hash64);
1181 spin_lock_irq(&mapping->tree_lock);
1182 found = radix_tree_gang_lookup(&mapping->page_tree,
1183 (void **)&page, offset, 1);
1184 if (found > 0 && !radix_tree_exceptional_entry(page)) {
1185 struct lu_dirpage *dp;
1187 page_cache_get(page);
1188 spin_unlock_irq(&mapping->tree_lock);
1190 * In contrast to find_lock_page() we are sure that directory
1191 * page cannot be truncated (while DLM lock is held) and,
1192 * hence, can avoid restart.
1194 * In fact, page cannot be locked here at all, because
1195 * mdc_read_page_remote does synchronous io.
1197 wait_on_page_locked(page);
1198 if (PageUptodate(page)) {
1200 if (BITS_PER_LONG == 32 && hash64) {
1201 *start = le64_to_cpu(dp->ldp_hash_start) >> 32;
1202 *end = le64_to_cpu(dp->ldp_hash_end) >> 32;
1203 *hash = *hash >> 32;
1205 *start = le64_to_cpu(dp->ldp_hash_start);
1206 *end = le64_to_cpu(dp->ldp_hash_end);
1208 if (unlikely(*start == 1 && *hash == 0))
1211 LASSERTF(*start <= *hash, "start = "LPX64
1212 ",end = "LPX64",hash = "LPX64"\n",
1213 *start, *end, *hash);
1214 CDEBUG(D_VFSTRACE, "offset %lx ["LPX64" "LPX64"],"
1215 " hash "LPX64"\n", offset, *start, *end, *hash);
1218 mdc_release_page(page, 0);
1220 } else if (*end != *start && *hash == *end) {
1222 * upon hash collision, remove this page,
1223 * otherwise put page reference, and
1224 * mdc_read_page_remote() will issue RPC to
1225 * fetch the page we want.
1228 mdc_release_page(page,
1229 le32_to_cpu(dp->ldp_flags) & LDF_COLLIDE);
1233 page_cache_release(page);
1234 page = ERR_PTR(-EIO);
1237 spin_unlock_irq(&mapping->tree_lock);
1244 * Adjust a set of pages, each page containing an array of lu_dirpages,
1245 * so that each page can be used as a single logical lu_dirpage.
1247 * A lu_dirpage is laid out as follows, where s = ldp_hash_start,
1248 * e = ldp_hash_end, f = ldp_flags, p = padding, and each "ent" is a
1249 * struct lu_dirent. It has size up to LU_PAGE_SIZE. The ldp_hash_end
1250 * value is used as a cookie to request the next lu_dirpage in a
1251 * directory listing that spans multiple pages (two in this example):
1254 * .|--------v------- -----.
1255 * |s|e|f|p|ent|ent| ... |ent|
1256 * '--|-------------- -----' Each CFS_PAGE contains a single
1257 * '------. lu_dirpage.
1258 * .---------v------- -----.
1259 * |s|e|f|p|ent| 0 | ... | 0 |
1260 * '----------------- -----'
1262 * However, on hosts where the native VM page size (PAGE_CACHE_SIZE) is
1263 * larger than LU_PAGE_SIZE, a single host page may contain multiple
1264 * lu_dirpages. After reading the lu_dirpages from the MDS, the
1265 * ldp_hash_end of the first lu_dirpage refers to the one immediately
1266 * after it in the same CFS_PAGE (arrows simplified for brevity, but
1267 * in general e0==s1, e1==s2, etc.):
1269 * .-------------------- -----.
1270 * |s0|e0|f0|p|ent|ent| ... |ent|
1271 * |---v---------------- -----|
1272 * |s1|e1|f1|p|ent|ent| ... |ent|
1273 * |---v---------------- -----| Here, each CFS_PAGE contains
1274 * ... multiple lu_dirpages.
1275 * |---v---------------- -----|
1276 * |s'|e'|f'|p|ent|ent| ... |ent|
1277 * '---|---------------- -----'
1279 * .----------------------------.
1282 * This structure is transformed into a single logical lu_dirpage as follows:
1284 * - Replace e0 with e' so the request for the next lu_dirpage gets the page
1285 * labeled 'next CFS_PAGE'.
1287 * - Copy the LDF_COLLIDE flag from f' to f0 to correctly reflect whether
1288 * a hash collision with the next page exists.
1290 * - Adjust the lde_reclen of the ending entry of each lu_dirpage to span
1291 * to the first entry of the next lu_dirpage.
1293 #if PAGE_CACHE_SIZE > LU_PAGE_SIZE
1294 static void mdc_adjust_dirpages(struct page **pages, int cfs_pgs, int lu_pgs)
1298 for (i = 0; i < cfs_pgs; i++) {
1299 struct lu_dirpage *dp = kmap(pages[i]);
1300 struct lu_dirpage *first = dp;
1301 struct lu_dirent *end_dirent = NULL;
1302 struct lu_dirent *ent;
1303 __u64 hash_end = le64_to_cpu(dp->ldp_hash_end);
1304 __u32 flags = le32_to_cpu(dp->ldp_flags);
1306 while (--lu_pgs > 0) {
1307 ent = lu_dirent_start(dp);
1308 for (end_dirent = ent; ent != NULL;
1309 end_dirent = ent, ent = lu_dirent_next(ent));
1311 /* Advance dp to next lu_dirpage. */
1312 dp = (struct lu_dirpage *)((char *)dp + LU_PAGE_SIZE);
1314 /* Check if we've reached the end of the CFS_PAGE. */
1315 if (!((unsigned long)dp & ~CFS_PAGE_MASK))
1318 /* Save the hash and flags of this lu_dirpage. */
1319 hash_end = le64_to_cpu(dp->ldp_hash_end);
1320 flags = le32_to_cpu(dp->ldp_flags);
1322 /* Check if lu_dirpage contains no entries. */
1323 if (end_dirent == NULL)
1326 /* Enlarge the end entry lde_reclen from 0 to
1327 * first entry of next lu_dirpage. */
1328 LASSERT(le16_to_cpu(end_dirent->lde_reclen) == 0);
1329 end_dirent->lde_reclen =
1330 cpu_to_le16((char *)(dp->ldp_entries) -
1331 (char *)end_dirent);
1334 first->ldp_hash_end = hash_end;
1335 first->ldp_flags &= ~cpu_to_le32(LDF_COLLIDE);
1336 first->ldp_flags |= flags & cpu_to_le32(LDF_COLLIDE);
1340 LASSERTF(lu_pgs == 0, "left = %d\n", lu_pgs);
1343 #define mdc_adjust_dirpages(pages, cfs_pgs, lu_pgs) do {} while (0)
1344 #endif /* PAGE_CACHE_SIZE > LU_PAGE_SIZE */
1346 /* parameters for readdir page */
1347 struct readpage_param {
1348 struct md_op_data *rp_mod;
1351 struct obd_export *rp_exp;
1352 struct md_callback *rp_cb;
1355 #ifndef HAVE_DELETE_FROM_PAGE_CACHE
1356 static inline void delete_from_page_cache(struct page *page)
1358 remove_from_page_cache(page);
1359 page_cache_release(page);
1364 * Read pages from server.
1366 * Page in MDS_READPAGE RPC is packed in LU_PAGE_SIZE, and each page contains
1367 * a header lu_dirpage which describes the start/end hash, and whether this
1368 * page is empty (contains no dir entry) or hash collide with next page.
1369 * After client receives reply, several pages will be integrated into dir page
1370 * in CFS_PAGE_SIZE (if CFS_PAGE_SIZE greater than LU_PAGE_SIZE), and the
1371 * lu_dirpage for this integrated page will be adjusted.
1373 static int mdc_read_page_remote(void *data, struct page *page0)
1375 struct readpage_param *rp = data;
1376 struct page **page_pool;
1378 struct lu_dirpage *dp;
1379 int rd_pgs = 0; /* number of pages read actually */
1381 struct md_op_data *op_data = rp->rp_mod;
1382 struct ptlrpc_request *req;
1383 int max_pages = op_data->op_max_pages;
1384 struct inode *inode;
1390 LASSERT(max_pages > 0 && max_pages <= PTLRPC_MAX_BRW_PAGES);
1391 inode = op_data->op_data;
1392 fid = &op_data->op_fid1;
1393 LASSERT(inode != NULL);
1395 OBD_ALLOC(page_pool, sizeof(page_pool[0]) * max_pages);
1396 if (page_pool != NULL) {
1397 page_pool[0] = page0;
1403 for (npages = 1; npages < max_pages; npages++) {
1404 page = page_cache_alloc_cold(inode->i_mapping);
1407 page_pool[npages] = page;
1410 rc = mdc_getpage(rp->rp_exp, fid, rp->rp_off, op_data->op_capa1,
1411 page_pool, npages, &req);
1413 /* page0 is special, which was added into page cache early */
1414 delete_from_page_cache(page0);
1418 rd_pgs = (req->rq_bulk->bd_nob_transferred +
1419 PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
1420 lu_pgs = req->rq_bulk->bd_nob_transferred >>
1422 LASSERT(!(req->rq_bulk->bd_nob_transferred & ~LU_PAGE_MASK));
1424 CDEBUG(D_INODE, "read %d(%d) pages\n", rd_pgs, lu_pgs);
1426 mdc_adjust_dirpages(page_pool, rd_pgs, lu_pgs);
1428 SetPageUptodate(page0);
1432 ptlrpc_req_finished(req);
1433 CDEBUG(D_CACHE, "read %d/%d pages\n", rd_pgs, npages);
1434 for (i = 1; i < npages; i++) {
1435 unsigned long offset;
1439 page = page_pool[i];
1441 if (rc < 0 || i >= rd_pgs) {
1442 page_cache_release(page);
1446 SetPageUptodate(page);
1449 hash = le64_to_cpu(dp->ldp_hash_start);
1452 offset = hash_x_index(hash, rp->rp_hash64);
1454 prefetchw(&page->flags);
1455 ret = add_to_page_cache_lru(page, inode->i_mapping, offset,
1460 CDEBUG(D_VFSTRACE, "page %lu add to page cache failed:"
1461 " rc = %d\n", offset, ret);
1462 page_cache_release(page);
1465 if (page_pool != &page0)
1466 OBD_FREE(page_pool, sizeof(page_pool[0]) * max_pages);
1472 * Read dir page from cache first, if it can not find it, read it from
1473 * server and add into the cache.
1475 * \param[in] exp MDC export
1476 * \param[in] op_data client MD stack parameters, transfering parameters
1477 * between different layers on client MD stack.
1478 * \param[in] cb_op callback required for ldlm lock enqueue during
1480 * \param[in] hash_offset the hash offset of the page to be read
1481 * \param[in] ppage the page to be read
1483 * retval = 0 get the page successfully
1484 * errno(<0) get the page failed
1486 static int mdc_read_page(struct obd_export *exp, struct md_op_data *op_data,
1487 struct md_callback *cb_op, __u64 hash_offset,
1488 struct page **ppage)
1490 struct lookup_intent it = { .it_op = IT_READDIR };
1492 struct inode *dir = op_data->op_data;
1493 struct address_space *mapping;
1494 struct lu_dirpage *dp;
1497 struct lustre_handle lockh;
1498 struct ptlrpc_request *enq_req = NULL;
1499 struct readpage_param rp_param;
1506 LASSERT(dir != NULL);
1507 mapping = dir->i_mapping;
1509 rc = mdc_intent_lock(exp, op_data, &it, &enq_req,
1510 cb_op->md_blocking_ast, 0);
1511 if (enq_req != NULL)
1512 ptlrpc_req_finished(enq_req);
1515 CERROR("%s: "DFID" lock enqueue fails: rc = %d\n",
1516 exp->exp_obd->obd_name, PFID(&op_data->op_fid1), rc);
1521 mdc_set_lock_data(exp, &it.d.lustre.it_lock_handle, dir, NULL);
1523 rp_param.rp_off = hash_offset;
1524 rp_param.rp_hash64 = op_data->op_cli_flags & CLI_HASH64;
1525 page = mdc_page_locate(mapping, &rp_param.rp_off, &start, &end,
1526 rp_param.rp_hash64);
1528 CERROR("%s: dir page locate: "DFID" at "LPU64": rc %ld\n",
1529 exp->exp_obd->obd_name, PFID(&op_data->op_fid1),
1530 rp_param.rp_off, PTR_ERR(page));
1531 GOTO(out_unlock, rc = PTR_ERR(page));
1532 } else if (page != NULL) {
1534 * XXX nikita: not entirely correct handling of a corner case:
1535 * suppose hash chain of entries with hash value HASH crosses
1536 * border between pages P0 and P1. First both P0 and P1 are
1537 * cached, seekdir() is called for some entry from the P0 part
1538 * of the chain. Later P0 goes out of cache. telldir(HASH)
1539 * happens and finds P1, as it starts with matching hash
1540 * value. Remaining entries from P0 part of the chain are
1541 * skipped. (Is that really a bug?)
1543 * Possible solutions: 0. don't cache P1 is such case, handle
1544 * it as an "overflow" page. 1. invalidate all pages at
1545 * once. 2. use HASH|1 as an index for P1.
1547 GOTO(hash_collision, page);
1550 rp_param.rp_exp = exp;
1551 rp_param.rp_mod = op_data;
1552 page = read_cache_page(mapping,
1553 hash_x_index(rp_param.rp_off,
1554 rp_param.rp_hash64),
1555 mdc_read_page_remote, &rp_param);
1557 CDEBUG(D_INFO, "%s: read cache page: "DFID" at "LPU64": %ld\n",
1558 exp->exp_obd->obd_name, PFID(&op_data->op_fid1),
1559 rp_param.rp_off, PTR_ERR(page));
1560 GOTO(out_unlock, rc = PTR_ERR(page));
1563 wait_on_page_locked(page);
1565 if (!PageUptodate(page)) {
1566 CERROR("%s: page not updated: "DFID" at "LPU64": rc %d\n",
1567 exp->exp_obd->obd_name, PFID(&op_data->op_fid1),
1568 rp_param.rp_off, -5);
1571 if (!PageChecked(page))
1572 SetPageChecked(page);
1573 if (PageError(page)) {
1574 CERROR("%s: page error: "DFID" at "LPU64": rc %d\n",
1575 exp->exp_obd->obd_name, PFID(&op_data->op_fid1),
1576 rp_param.rp_off, -5);
1581 dp = page_address(page);
1582 if (BITS_PER_LONG == 32 && rp_param.rp_hash64) {
1583 start = le64_to_cpu(dp->ldp_hash_start) >> 32;
1584 end = le64_to_cpu(dp->ldp_hash_end) >> 32;
1585 rp_param.rp_off = hash_offset >> 32;
1587 start = le64_to_cpu(dp->ldp_hash_start);
1588 end = le64_to_cpu(dp->ldp_hash_end);
1589 rp_param.rp_off = hash_offset;
1592 LASSERT(start == rp_param.rp_off);
1593 CWARN("Page-wide hash collision: %#lx\n", (unsigned long)end);
1594 #if BITS_PER_LONG == 32
1595 CWARN("Real page-wide hash collision at ["LPU64" "LPU64"] with "
1596 "hash "LPU64"\n", le64_to_cpu(dp->ldp_hash_start),
1597 le64_to_cpu(dp->ldp_hash_end), hash_offset);
1601 * Fetch whole overflow chain...
1609 lockh.cookie = it.d.lustre.it_lock_handle;
1610 ldlm_lock_decref(&lockh, it.d.lustre.it_lock_mode);
1611 it.d.lustre.it_lock_handle = 0;
1615 mdc_release_page(page, 1);
1621 static int mdc_statfs(const struct lu_env *env,
1622 struct obd_export *exp, struct obd_statfs *osfs,
1623 __u64 max_age, __u32 flags)
1625 struct obd_device *obd = class_exp2obd(exp);
1626 struct ptlrpc_request *req;
1627 struct obd_statfs *msfs;
1628 struct obd_import *imp = NULL;
1633 * Since the request might also come from lprocfs, so we need
1634 * sync this with client_disconnect_export Bug15684
1636 down_read(&obd->u.cli.cl_sem);
1637 if (obd->u.cli.cl_import)
1638 imp = class_import_get(obd->u.cli.cl_import);
1639 up_read(&obd->u.cli.cl_sem);
1643 req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_STATFS,
1644 LUSTRE_MDS_VERSION, MDS_STATFS);
1646 GOTO(output, rc = -ENOMEM);
1648 ptlrpc_request_set_replen(req);
1650 if (flags & OBD_STATFS_NODELAY) {
1651 /* procfs requests not want stay in wait for avoid deadlock */
1652 req->rq_no_resend = 1;
1653 req->rq_no_delay = 1;
1656 rc = ptlrpc_queue_wait(req);
1658 /* check connection error first */
1659 if (imp->imp_connect_error)
1660 rc = imp->imp_connect_error;
1664 msfs = req_capsule_server_get(&req->rq_pill, &RMF_OBD_STATFS);
1666 GOTO(out, rc = -EPROTO);
1671 ptlrpc_req_finished(req);
1673 class_import_put(imp);
1677 static int mdc_ioc_fid2path(struct obd_export *exp, struct getinfo_fid2path *gf)
1679 __u32 keylen, vallen;
1683 if (gf->gf_pathlen > PATH_MAX)
1684 RETURN(-ENAMETOOLONG);
1685 if (gf->gf_pathlen < 2)
1688 /* Key is KEY_FID2PATH + getinfo_fid2path description */
1689 keylen = cfs_size_round(sizeof(KEY_FID2PATH)) + sizeof(*gf);
1690 OBD_ALLOC(key, keylen);
1693 memcpy(key, KEY_FID2PATH, sizeof(KEY_FID2PATH));
1694 memcpy(key + cfs_size_round(sizeof(KEY_FID2PATH)), gf, sizeof(*gf));
1696 CDEBUG(D_IOCTL, "path get "DFID" from "LPU64" #%d\n",
1697 PFID(&gf->gf_fid), gf->gf_recno, gf->gf_linkno);
1699 if (!fid_is_sane(&gf->gf_fid))
1700 GOTO(out, rc = -EINVAL);
1702 /* Val is struct getinfo_fid2path result plus path */
1703 vallen = sizeof(*gf) + gf->gf_pathlen;
1705 rc = obd_get_info(NULL, exp, keylen, key, &vallen, gf, NULL);
1706 if (rc != 0 && rc != -EREMOTE)
1709 if (vallen <= sizeof(*gf))
1710 GOTO(out, rc = -EPROTO);
1711 else if (vallen > sizeof(*gf) + gf->gf_pathlen)
1712 GOTO(out, rc = -EOVERFLOW);
1714 CDEBUG(D_IOCTL, "path get "DFID" from "LPU64" #%d\n%s\n",
1715 PFID(&gf->gf_fid), gf->gf_recno, gf->gf_linkno, gf->gf_path);
1718 OBD_FREE(key, keylen);
1722 static int mdc_ioc_hsm_progress(struct obd_export *exp,
1723 struct hsm_progress_kernel *hpk)
1725 struct obd_import *imp = class_exp2cliimp(exp);
1726 struct hsm_progress_kernel *req_hpk;
1727 struct ptlrpc_request *req;
1731 req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_HSM_PROGRESS,
1732 LUSTRE_MDS_VERSION, MDS_HSM_PROGRESS);
1734 GOTO(out, rc = -ENOMEM);
1736 mdc_pack_body(req, NULL, NULL, OBD_MD_FLRMTPERM, 0, -1, 0);
1738 /* Copy hsm_progress struct */
1739 req_hpk = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_PROGRESS);
1740 if (req_hpk == NULL)
1741 GOTO(out, rc = -EPROTO);
1744 req_hpk->hpk_errval = lustre_errno_hton(hpk->hpk_errval);
1746 ptlrpc_request_set_replen(req);
1748 rc = mdc_queue_wait(req);
1751 ptlrpc_req_finished(req);
1755 static int mdc_ioc_hsm_ct_register(struct obd_import *imp, __u32 archives)
1757 __u32 *archive_mask;
1758 struct ptlrpc_request *req;
1762 req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_HSM_CT_REGISTER,
1764 MDS_HSM_CT_REGISTER);
1766 GOTO(out, rc = -ENOMEM);
1768 mdc_pack_body(req, NULL, NULL, OBD_MD_FLRMTPERM, 0, -1, 0);
1770 /* Copy hsm_progress struct */
1771 archive_mask = req_capsule_client_get(&req->rq_pill,
1772 &RMF_MDS_HSM_ARCHIVE);
1773 if (archive_mask == NULL)
1774 GOTO(out, rc = -EPROTO);
1776 *archive_mask = archives;
1778 ptlrpc_request_set_replen(req);
1780 rc = mdc_queue_wait(req);
1783 ptlrpc_req_finished(req);
1787 static int mdc_ioc_hsm_current_action(struct obd_export *exp,
1788 struct md_op_data *op_data)
1790 struct hsm_current_action *hca = op_data->op_data;
1791 struct hsm_current_action *req_hca;
1792 struct ptlrpc_request *req;
1796 req = ptlrpc_request_alloc(class_exp2cliimp(exp),
1797 &RQF_MDS_HSM_ACTION);
1801 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
1803 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_ACTION);
1805 ptlrpc_request_free(req);
1809 mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1,
1810 OBD_MD_FLRMTPERM, 0, op_data->op_suppgids[0], 0);
1812 ptlrpc_request_set_replen(req);
1814 rc = mdc_queue_wait(req);
1818 req_hca = req_capsule_server_get(&req->rq_pill,
1819 &RMF_MDS_HSM_CURRENT_ACTION);
1820 if (req_hca == NULL)
1821 GOTO(out, rc = -EPROTO);
1827 ptlrpc_req_finished(req);
1831 static int mdc_ioc_hsm_ct_unregister(struct obd_import *imp)
1833 struct ptlrpc_request *req;
1837 req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_HSM_CT_UNREGISTER,
1839 MDS_HSM_CT_UNREGISTER);
1841 GOTO(out, rc = -ENOMEM);
1843 mdc_pack_body(req, NULL, NULL, OBD_MD_FLRMTPERM, 0, -1, 0);
1845 ptlrpc_request_set_replen(req);
1847 rc = mdc_queue_wait(req);
1850 ptlrpc_req_finished(req);
1854 static int mdc_ioc_hsm_state_get(struct obd_export *exp,
1855 struct md_op_data *op_data)
1857 struct hsm_user_state *hus = op_data->op_data;
1858 struct hsm_user_state *req_hus;
1859 struct ptlrpc_request *req;
1863 req = ptlrpc_request_alloc(class_exp2cliimp(exp),
1864 &RQF_MDS_HSM_STATE_GET);
1868 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
1870 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_STATE_GET);
1872 ptlrpc_request_free(req);
1876 mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1,
1877 OBD_MD_FLRMTPERM, 0, op_data->op_suppgids[0], 0);
1879 ptlrpc_request_set_replen(req);
1881 rc = mdc_queue_wait(req);
1885 req_hus = req_capsule_server_get(&req->rq_pill, &RMF_HSM_USER_STATE);
1886 if (req_hus == NULL)
1887 GOTO(out, rc = -EPROTO);
1893 ptlrpc_req_finished(req);
1897 static int mdc_ioc_hsm_state_set(struct obd_export *exp,
1898 struct md_op_data *op_data)
1900 struct hsm_state_set *hss = op_data->op_data;
1901 struct hsm_state_set *req_hss;
1902 struct ptlrpc_request *req;
1906 req = ptlrpc_request_alloc(class_exp2cliimp(exp),
1907 &RQF_MDS_HSM_STATE_SET);
1911 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
1913 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_STATE_SET);
1915 ptlrpc_request_free(req);
1919 mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1,
1920 OBD_MD_FLRMTPERM, 0, op_data->op_suppgids[0], 0);
1923 req_hss = req_capsule_client_get(&req->rq_pill, &RMF_HSM_STATE_SET);
1924 if (req_hss == NULL)
1925 GOTO(out, rc = -EPROTO);
1928 ptlrpc_request_set_replen(req);
1930 rc = mdc_queue_wait(req);
1935 ptlrpc_req_finished(req);
1939 static int mdc_ioc_hsm_request(struct obd_export *exp,
1940 struct hsm_user_request *hur)
1942 struct obd_import *imp = class_exp2cliimp(exp);
1943 struct ptlrpc_request *req;
1944 struct hsm_request *req_hr;
1945 struct hsm_user_item *req_hui;
1950 req = ptlrpc_request_alloc(imp, &RQF_MDS_HSM_REQUEST);
1952 GOTO(out, rc = -ENOMEM);
1954 req_capsule_set_size(&req->rq_pill, &RMF_MDS_HSM_USER_ITEM, RCL_CLIENT,
1955 hur->hur_request.hr_itemcount
1956 * sizeof(struct hsm_user_item));
1957 req_capsule_set_size(&req->rq_pill, &RMF_GENERIC_DATA, RCL_CLIENT,
1958 hur->hur_request.hr_data_len);
1960 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_REQUEST);
1962 ptlrpc_request_free(req);
1966 mdc_pack_body(req, NULL, NULL, OBD_MD_FLRMTPERM, 0, -1, 0);
1968 /* Copy hsm_request struct */
1969 req_hr = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_REQUEST);
1971 GOTO(out, rc = -EPROTO);
1972 *req_hr = hur->hur_request;
1974 /* Copy hsm_user_item structs */
1975 req_hui = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_USER_ITEM);
1976 if (req_hui == NULL)
1977 GOTO(out, rc = -EPROTO);
1978 memcpy(req_hui, hur->hur_user_item,
1979 hur->hur_request.hr_itemcount * sizeof(struct hsm_user_item));
1981 /* Copy opaque field */
1982 req_opaque = req_capsule_client_get(&req->rq_pill, &RMF_GENERIC_DATA);
1983 if (req_opaque == NULL)
1984 GOTO(out, rc = -EPROTO);
1985 memcpy(req_opaque, hur_data(hur), hur->hur_request.hr_data_len);
1987 ptlrpc_request_set_replen(req);
1989 rc = mdc_queue_wait(req);
1993 ptlrpc_req_finished(req);
1997 static struct kuc_hdr *changelog_kuc_hdr(char *buf, size_t len, __u32 flags)
1999 struct kuc_hdr *lh = (struct kuc_hdr *)buf;
2001 LASSERT(len <= KUC_CHANGELOG_MSG_MAXSIZE);
2003 lh->kuc_magic = KUC_MAGIC;
2004 lh->kuc_transport = KUC_TRANSPORT_CHANGELOG;
2005 lh->kuc_flags = flags;
2006 lh->kuc_msgtype = CL_RECORD;
2007 lh->kuc_msglen = len;
2011 struct changelog_show {
2013 enum changelog_send_flag cs_flags;
2016 struct obd_device *cs_obd;
2019 static inline char *cs_obd_name(struct changelog_show *cs)
2021 return cs->cs_obd->obd_name;
2024 static int changelog_kkuc_cb(const struct lu_env *env, struct llog_handle *llh,
2025 struct llog_rec_hdr *hdr, void *data)
2027 struct changelog_show *cs = data;
2028 struct llog_changelog_rec *rec = (struct llog_changelog_rec *)hdr;
2034 if (rec->cr_hdr.lrh_type != CHANGELOG_REC) {
2036 CERROR("%s: not a changelog rec %x/%d: rc = %d\n",
2037 cs_obd_name(cs), rec->cr_hdr.lrh_type,
2038 rec->cr.cr_type, rc);
2042 if (rec->cr.cr_index < cs->cs_startrec) {
2043 /* Skip entries earlier than what we are interested in */
2044 CDEBUG(D_HSM, "rec="LPU64" start="LPU64"\n",
2045 rec->cr.cr_index, cs->cs_startrec);
2049 CDEBUG(D_HSM, LPU64" %02d%-5s "LPU64" 0x%x t="DFID" p="DFID" %.*s\n",
2050 rec->cr.cr_index, rec->cr.cr_type,
2051 changelog_type2str(rec->cr.cr_type), rec->cr.cr_time,
2052 rec->cr.cr_flags & CLF_FLAGMASK,
2053 PFID(&rec->cr.cr_tfid), PFID(&rec->cr.cr_pfid),
2054 rec->cr.cr_namelen, changelog_rec_name(&rec->cr));
2056 len = sizeof(*lh) + changelog_rec_size(&rec->cr) + rec->cr.cr_namelen;
2058 /* Set up the message */
2059 lh = changelog_kuc_hdr(cs->cs_buf, len, cs->cs_flags);
2060 memcpy(lh + 1, &rec->cr, len - sizeof(*lh));
2062 rc = libcfs_kkuc_msg_put(cs->cs_fp, lh);
2063 CDEBUG(D_HSM, "kucmsg fp %p len %zu rc %d\n", cs->cs_fp, len, rc);
2068 static int mdc_changelog_send_thread(void *csdata)
2070 struct changelog_show *cs = csdata;
2071 struct llog_ctxt *ctxt = NULL;
2072 struct llog_handle *llh = NULL;
2073 struct kuc_hdr *kuch;
2074 enum llog_flag flags = LLOG_F_IS_CAT;
2077 CDEBUG(D_HSM, "changelog to fp=%p start "LPU64"\n",
2078 cs->cs_fp, cs->cs_startrec);
2080 OBD_ALLOC(cs->cs_buf, KUC_CHANGELOG_MSG_MAXSIZE);
2081 if (cs->cs_buf == NULL)
2082 GOTO(out, rc = -ENOMEM);
2084 /* Set up the remote catalog handle */
2085 ctxt = llog_get_context(cs->cs_obd, LLOG_CHANGELOG_REPL_CTXT);
2087 GOTO(out, rc = -ENOENT);
2088 rc = llog_open(NULL, ctxt, &llh, NULL, CHANGELOG_CATALOG,
2091 CERROR("%s: fail to open changelog catalog: rc = %d\n",
2092 cs_obd_name(cs), rc);
2096 if (cs->cs_flags & CHANGELOG_FLAG_JOBID)
2097 flags |= LLOG_F_EXT_JOBID;
2099 rc = llog_init_handle(NULL, llh, flags, NULL);
2101 CERROR("llog_init_handle failed %d\n", rc);
2105 rc = llog_cat_process(NULL, llh, changelog_kkuc_cb, cs, 0, 0);
2107 /* Send EOF no matter what our result */
2108 if ((kuch = changelog_kuc_hdr(cs->cs_buf, sizeof(*kuch),
2110 kuch->kuc_msgtype = CL_EOF;
2111 libcfs_kkuc_msg_put(cs->cs_fp, kuch);
2117 llog_cat_close(NULL, llh);
2119 llog_ctxt_put(ctxt);
2121 OBD_FREE(cs->cs_buf, KUC_CHANGELOG_MSG_MAXSIZE);
2126 static int mdc_ioc_changelog_send(struct obd_device *obd,
2127 struct ioc_changelog *icc)
2129 struct changelog_show *cs;
2130 struct task_struct *task;
2133 /* Freed in mdc_changelog_send_thread */
2139 cs->cs_startrec = icc->icc_recno;
2140 /* matching fput in mdc_changelog_send_thread */
2141 cs->cs_fp = fget(icc->icc_id);
2142 cs->cs_flags = icc->icc_flags;
2145 * New thread because we should return to user app before
2146 * writing into our pipe
2148 task = kthread_run(mdc_changelog_send_thread, cs,
2149 "mdc_clg_send_thread");
2152 CERROR("%s: cannot start changelog thread: rc = %d\n",
2153 cs_obd_name(cs), rc);
2157 CDEBUG(D_HSM, "%s: started changelog thread\n",
2164 static int mdc_ioc_hsm_ct_start(struct obd_export *exp,
2165 struct lustre_kernelcomm *lk);
2167 static int mdc_quotacheck(struct obd_device *unused, struct obd_export *exp,
2168 struct obd_quotactl *oqctl)
2170 struct client_obd *cli = &exp->exp_obd->u.cli;
2171 struct ptlrpc_request *req;
2172 struct obd_quotactl *body;
2176 req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
2177 &RQF_MDS_QUOTACHECK, LUSTRE_MDS_VERSION,
2182 body = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
2185 ptlrpc_request_set_replen(req);
2187 /* the next poll will find -ENODATA, that means quotacheck is
2189 cli->cl_qchk_stat = -ENODATA;
2190 rc = ptlrpc_queue_wait(req);
2192 cli->cl_qchk_stat = rc;
2193 ptlrpc_req_finished(req);
2197 static int mdc_quota_poll_check(struct obd_export *exp,
2198 struct if_quotacheck *qchk)
2200 struct client_obd *cli = &exp->exp_obd->u.cli;
2204 qchk->obd_uuid = cli->cl_target_uuid;
2205 memcpy(qchk->obd_type, LUSTRE_MDS_NAME, strlen(LUSTRE_MDS_NAME));
2207 rc = cli->cl_qchk_stat;
2208 /* the client is not the previous one */
2209 if (rc == CL_NOT_QUOTACHECKED)
2214 static int mdc_quotactl(struct obd_device *unused, struct obd_export *exp,
2215 struct obd_quotactl *oqctl)
2217 struct ptlrpc_request *req;
2218 struct obd_quotactl *oqc;
2222 req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
2223 &RQF_MDS_QUOTACTL, LUSTRE_MDS_VERSION,
2228 oqc = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
2231 ptlrpc_request_set_replen(req);
2232 ptlrpc_at_set_req_timeout(req);
2233 req->rq_no_resend = 1;
2235 rc = ptlrpc_queue_wait(req);
2237 CERROR("ptlrpc_queue_wait failed, rc: %d\n", rc);
2239 if (req->rq_repmsg &&
2240 (oqc = req_capsule_server_get(&req->rq_pill, &RMF_OBD_QUOTACTL))) {
2243 CERROR ("Can't unpack obd_quotactl\n");
2246 ptlrpc_req_finished(req);
2251 static int mdc_ioc_swap_layouts(struct obd_export *exp,
2252 struct md_op_data *op_data)
2254 struct list_head cancels = LIST_HEAD_INIT(cancels);
2255 struct ptlrpc_request *req;
2257 struct mdc_swap_layouts *msl, *payload;
2260 msl = op_data->op_data;
2262 /* When the MDT will get the MDS_SWAP_LAYOUTS RPC the
2263 * first thing it will do is to cancel the 2 layout
2264 * locks hold by this client.
2265 * So the client must cancel its layout locks on the 2 fids
2266 * with the request RPC to avoid extra RPC round trips
2268 count = mdc_resource_get_unused(exp, &op_data->op_fid1, &cancels,
2269 LCK_EX, MDS_INODELOCK_LAYOUT |
2270 MDS_INODELOCK_XATTR);
2271 count += mdc_resource_get_unused(exp, &op_data->op_fid2, &cancels,
2272 LCK_EX, MDS_INODELOCK_LAYOUT |
2273 MDS_INODELOCK_XATTR);
2275 req = ptlrpc_request_alloc(class_exp2cliimp(exp),
2276 &RQF_MDS_SWAP_LAYOUTS);
2278 ldlm_lock_list_put(&cancels, l_bl_ast, count);
2282 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
2283 mdc_set_capa_size(req, &RMF_CAPA2, op_data->op_capa2);
2285 rc = mdc_prep_elc_req(exp, req, MDS_SWAP_LAYOUTS, &cancels, count);
2287 ptlrpc_request_free(req);
2291 mdc_swap_layouts_pack(req, op_data);
2293 payload = req_capsule_client_get(&req->rq_pill, &RMF_SWAP_LAYOUTS);
2298 ptlrpc_request_set_replen(req);
2300 rc = ptlrpc_queue_wait(req);
2306 ptlrpc_req_finished(req);
2310 static int mdc_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
2311 void *karg, void __user *uarg)
2313 struct obd_device *obd = exp->exp_obd;
2314 struct obd_ioctl_data *data = karg;
2315 struct obd_import *imp = obd->u.cli.cl_import;
2319 if (!try_module_get(THIS_MODULE)) {
2320 CERROR("%s: cannot get module '%s'\n", obd->obd_name,
2321 module_name(THIS_MODULE));
2325 case OBD_IOC_CHANGELOG_SEND:
2326 rc = mdc_ioc_changelog_send(obd, karg);
2328 case OBD_IOC_CHANGELOG_CLEAR: {
2329 struct ioc_changelog *icc = karg;
2330 struct changelog_setinfo cs =
2331 {.cs_recno = icc->icc_recno, .cs_id = icc->icc_id};
2332 rc = obd_set_info_async(NULL, exp, strlen(KEY_CHANGELOG_CLEAR),
2333 KEY_CHANGELOG_CLEAR, sizeof(cs), &cs,
2337 case OBD_IOC_FID2PATH:
2338 rc = mdc_ioc_fid2path(exp, karg);
2340 case LL_IOC_HSM_CT_START:
2341 rc = mdc_ioc_hsm_ct_start(exp, karg);
2342 /* ignore if it was already registered on this MDS. */
2346 case LL_IOC_HSM_PROGRESS:
2347 rc = mdc_ioc_hsm_progress(exp, karg);
2349 case LL_IOC_HSM_STATE_GET:
2350 rc = mdc_ioc_hsm_state_get(exp, karg);
2352 case LL_IOC_HSM_STATE_SET:
2353 rc = mdc_ioc_hsm_state_set(exp, karg);
2355 case LL_IOC_HSM_ACTION:
2356 rc = mdc_ioc_hsm_current_action(exp, karg);
2358 case LL_IOC_HSM_REQUEST:
2359 rc = mdc_ioc_hsm_request(exp, karg);
2361 case OBD_IOC_CLIENT_RECOVER:
2362 rc = ptlrpc_recover_import(imp, data->ioc_inlbuf1, 0);
2366 case IOC_OSC_SET_ACTIVE:
2367 rc = ptlrpc_set_import_active(imp, data->ioc_offset);
2369 case OBD_IOC_POLL_QUOTACHECK:
2370 rc = mdc_quota_poll_check(exp, (struct if_quotacheck *)karg);
2372 case OBD_IOC_PING_TARGET:
2373 rc = ptlrpc_obd_ping(obd);
2376 * Normally IOC_OBD_STATFS, OBD_IOC_QUOTACTL iocontrol are handled by
2377 * LMV instead of MDC. But when the cluster is upgraded from 1.8,
2378 * there'd be no LMV layer thus we might be called here. Eventually
2379 * this code should be removed.
2382 case IOC_OBD_STATFS: {
2383 struct obd_statfs stat_buf = {0};
2385 if (*((__u32 *) data->ioc_inlbuf2) != 0)
2386 GOTO(out, rc = -ENODEV);
2389 if (copy_to_user(data->ioc_pbuf2, obd2cli_tgt(obd),
2390 min((int)data->ioc_plen2,
2391 (int)sizeof(struct obd_uuid))))
2392 GOTO(out, rc = -EFAULT);
2394 rc = mdc_statfs(NULL, obd->obd_self_export, &stat_buf,
2395 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
2400 if (copy_to_user(data->ioc_pbuf1, &stat_buf,
2401 min((int) data->ioc_plen1,
2402 (int) sizeof(stat_buf))))
2403 GOTO(out, rc = -EFAULT);
2407 case OBD_IOC_QUOTACTL: {
2408 struct if_quotactl *qctl = karg;
2409 struct obd_quotactl *oqctl;
2411 OBD_ALLOC_PTR(oqctl);
2413 GOTO(out, rc = -ENOMEM);
2415 QCTL_COPY(oqctl, qctl);
2416 rc = obd_quotactl(exp, oqctl);
2418 QCTL_COPY(qctl, oqctl);
2419 qctl->qc_valid = QC_MDTIDX;
2420 qctl->obd_uuid = obd->u.cli.cl_target_uuid;
2423 OBD_FREE_PTR(oqctl);
2426 case LL_IOC_GET_CONNECT_FLAGS:
2427 if (copy_to_user(uarg, exp_connect_flags_ptr(exp),
2428 sizeof(*exp_connect_flags_ptr(exp))))
2429 GOTO(out, rc = -EFAULT);
2432 case LL_IOC_LOV_SWAP_LAYOUTS:
2433 rc = mdc_ioc_swap_layouts(exp, karg);
2436 CERROR("unrecognised ioctl: cmd = %#x\n", cmd);
2437 GOTO(out, rc = -ENOTTY);
2440 module_put(THIS_MODULE);
2445 static int mdc_get_info_rpc(struct obd_export *exp,
2446 obd_count keylen, void *key,
2447 int vallen, void *val)
2449 struct obd_import *imp = class_exp2cliimp(exp);
2450 struct ptlrpc_request *req;
2455 req = ptlrpc_request_alloc(imp, &RQF_MDS_GET_INFO);
2459 req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_KEY,
2460 RCL_CLIENT, keylen);
2461 req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_VALLEN,
2462 RCL_CLIENT, sizeof(__u32));
2464 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GET_INFO);
2466 ptlrpc_request_free(req);
2470 tmp = req_capsule_client_get(&req->rq_pill, &RMF_GETINFO_KEY);
2471 memcpy(tmp, key, keylen);
2472 tmp = req_capsule_client_get(&req->rq_pill, &RMF_GETINFO_VALLEN);
2473 memcpy(tmp, &vallen, sizeof(__u32));
2475 req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_VAL,
2476 RCL_SERVER, vallen);
2477 ptlrpc_request_set_replen(req);
2479 rc = ptlrpc_queue_wait(req);
2480 /* -EREMOTE means the get_info result is partial, and it needs to
2481 * continue on another MDT, see fid2path part in lmv_iocontrol */
2482 if (rc == 0 || rc == -EREMOTE) {
2483 tmp = req_capsule_server_get(&req->rq_pill, &RMF_GETINFO_VAL);
2484 memcpy(val, tmp, vallen);
2485 if (ptlrpc_rep_need_swab(req)) {
2486 if (KEY_IS(KEY_FID2PATH))
2487 lustre_swab_fid2path(val);
2490 ptlrpc_req_finished(req);
2495 static void lustre_swab_hai(struct hsm_action_item *h)
2497 __swab32s(&h->hai_len);
2498 __swab32s(&h->hai_action);
2499 lustre_swab_lu_fid(&h->hai_fid);
2500 lustre_swab_lu_fid(&h->hai_dfid);
2501 __swab64s(&h->hai_cookie);
2502 __swab64s(&h->hai_extent.offset);
2503 __swab64s(&h->hai_extent.length);
2504 __swab64s(&h->hai_gid);
2507 static void lustre_swab_hal(struct hsm_action_list *h)
2509 struct hsm_action_item *hai;
2512 __swab32s(&h->hal_version);
2513 __swab32s(&h->hal_count);
2514 __swab32s(&h->hal_archive_id);
2515 __swab64s(&h->hal_flags);
2517 for (i = 0; i < h->hal_count; i++, hai = hai_next(hai))
2518 lustre_swab_hai(hai);
2521 static void lustre_swab_kuch(struct kuc_hdr *l)
2523 __swab16s(&l->kuc_magic);
2524 /* __u8 l->kuc_transport */
2525 __swab16s(&l->kuc_msgtype);
2526 __swab16s(&l->kuc_msglen);
2529 static int mdc_ioc_hsm_ct_start(struct obd_export *exp,
2530 struct lustre_kernelcomm *lk)
2532 struct obd_import *imp = class_exp2cliimp(exp);
2533 __u32 archive = lk->lk_data;
2536 if (lk->lk_group != KUC_GRP_HSM) {
2537 CERROR("Bad copytool group %d\n", lk->lk_group);
2541 CDEBUG(D_HSM, "CT start r%d w%d u%d g%d f%#x\n", lk->lk_rfd, lk->lk_wfd,
2542 lk->lk_uid, lk->lk_group, lk->lk_flags);
2544 if (lk->lk_flags & LK_FLG_STOP) {
2545 /* Unregister with the coordinator */
2546 rc = mdc_ioc_hsm_ct_unregister(imp);
2548 rc = mdc_ioc_hsm_ct_register(imp, archive);
2555 * Send a message to any listening copytools
2556 * @param val KUC message (kuc_hdr + hsm_action_list)
2557 * @param len total length of message
2559 static int mdc_hsm_copytool_send(size_t len, void *val)
2561 struct kuc_hdr *lh = (struct kuc_hdr *)val;
2562 struct hsm_action_list *hal = (struct hsm_action_list *)(lh + 1);
2566 if (len < sizeof(*lh) + sizeof(*hal)) {
2567 CERROR("Short HSM message %zu < %zu\n", len,
2568 sizeof(*lh) + sizeof(*hal));
2571 if (lh->kuc_magic == __swab16(KUC_MAGIC)) {
2572 lustre_swab_kuch(lh);
2573 lustre_swab_hal(hal);
2574 } else if (lh->kuc_magic != KUC_MAGIC) {
2575 CERROR("Bad magic %x!=%x\n", lh->kuc_magic, KUC_MAGIC);
2579 CDEBUG(D_HSM, " Received message mg=%x t=%d m=%d l=%d actions=%d "
2581 lh->kuc_magic, lh->kuc_transport, lh->kuc_msgtype,
2582 lh->kuc_msglen, hal->hal_count, hal->hal_fsname);
2584 /* Broadcast to HSM listeners */
2585 rc = libcfs_kkuc_group_put(KUC_GRP_HSM, lh);
2591 * callback function passed to kuc for re-registering each HSM copytool
2592 * running on MDC, after MDT shutdown/recovery.
2593 * @param data copytool registration data
2594 * @param cb_arg callback argument (obd_import)
2596 static int mdc_hsm_ct_reregister(void *data, void *cb_arg)
2598 struct kkuc_ct_data *kcd = data;
2599 struct obd_import *imp = (struct obd_import *)cb_arg;
2602 if (kcd == NULL || kcd->kcd_magic != KKUC_CT_DATA_MAGIC)
2605 if (!obd_uuid_equals(&kcd->kcd_uuid, &imp->imp_obd->obd_uuid))
2608 CDEBUG(D_HA, "%s: recover copytool registration to MDT (archive=%#x)\n",
2609 imp->imp_obd->obd_name, kcd->kcd_archive);
2610 rc = mdc_ioc_hsm_ct_register(imp, kcd->kcd_archive);
2612 /* ignore error if the copytool is already registered */
2613 return (rc == -EEXIST) ? 0 : rc;
2617 * Re-establish all kuc contexts with MDT
2618 * after MDT shutdown/recovery.
2620 static int mdc_kuc_reregister(struct obd_import *imp)
2622 /* re-register HSM agents */
2623 return libcfs_kkuc_group_foreach(KUC_GRP_HSM, mdc_hsm_ct_reregister,
2627 static int mdc_set_info_async(const struct lu_env *env,
2628 struct obd_export *exp,
2629 obd_count keylen, void *key,
2630 obd_count vallen, void *val,
2631 struct ptlrpc_request_set *set)
2633 struct obd_import *imp = class_exp2cliimp(exp);
2637 if (KEY_IS(KEY_READ_ONLY)) {
2638 if (vallen != sizeof(int))
2641 spin_lock(&imp->imp_lock);
2642 if (*((int *)val)) {
2643 imp->imp_connect_flags_orig |= OBD_CONNECT_RDONLY;
2644 imp->imp_connect_data.ocd_connect_flags |=
2647 imp->imp_connect_flags_orig &= ~OBD_CONNECT_RDONLY;
2648 imp->imp_connect_data.ocd_connect_flags &=
2649 ~OBD_CONNECT_RDONLY;
2651 spin_unlock(&imp->imp_lock);
2653 rc = do_set_info_async(imp, MDS_SET_INFO, LUSTRE_MDS_VERSION,
2654 keylen, key, vallen, val, set);
2657 if (KEY_IS(KEY_SPTLRPC_CONF)) {
2658 sptlrpc_conf_client_adapt(exp->exp_obd);
2661 if (KEY_IS(KEY_FLUSH_CTX)) {
2662 sptlrpc_import_flush_my_ctx(imp);
2665 if (KEY_IS(KEY_CHANGELOG_CLEAR)) {
2666 rc = do_set_info_async(imp, MDS_SET_INFO, LUSTRE_MDS_VERSION,
2667 keylen, key, vallen, val, set);
2670 if (KEY_IS(KEY_HSM_COPYTOOL_SEND)) {
2671 rc = mdc_hsm_copytool_send(vallen, val);
2675 CERROR("Unknown key %s\n", (char *)key);
2679 static int mdc_get_info(const struct lu_env *env, struct obd_export *exp,
2680 __u32 keylen, void *key, __u32 *vallen, void *val,
2681 struct lov_stripe_md *lsm)
2685 if (KEY_IS(KEY_MAX_EASIZE)) {
2686 __u32 mdsize, *max_easize;
2688 if (*vallen != sizeof(int))
2690 mdsize = *(__u32 *)val;
2691 if (mdsize > exp->exp_obd->u.cli.cl_max_mds_easize)
2692 exp->exp_obd->u.cli.cl_max_mds_easize = mdsize;
2694 *max_easize = exp->exp_obd->u.cli.cl_max_mds_easize;
2696 } else if (KEY_IS(KEY_DEFAULT_EASIZE)) {
2697 __u32 *default_easize;
2699 if (*vallen != sizeof(int))
2701 default_easize = val;
2702 *default_easize = exp->exp_obd->u.cli.cl_default_mds_easize;
2704 } else if (KEY_IS(KEY_MAX_COOKIESIZE)) {
2705 __u32 mdsize, *max_cookiesize;
2707 if (*vallen != sizeof(int))
2709 mdsize = *(int *)val;
2710 if (mdsize > exp->exp_obd->u.cli.cl_max_mds_cookiesize)
2711 exp->exp_obd->u.cli.cl_max_mds_cookiesize = mdsize;
2712 max_cookiesize = val;
2713 *max_cookiesize = exp->exp_obd->u.cli.cl_max_mds_cookiesize;
2715 } else if (KEY_IS(KEY_DEFAULT_COOKIESIZE)) {
2716 __u32 *default_cookiesize;
2718 if (*vallen != sizeof(int))
2720 default_cookiesize = val;
2721 *default_cookiesize =
2722 exp->exp_obd->u.cli.cl_default_mds_cookiesize;
2724 } else if (KEY_IS(KEY_CONN_DATA)) {
2725 struct obd_import *imp = class_exp2cliimp(exp);
2726 struct obd_connect_data *data = val;
2728 if (*vallen != sizeof(*data))
2731 *data = imp->imp_connect_data;
2733 } else if (KEY_IS(KEY_TGT_COUNT)) {
2734 *((__u32 *)val) = 1;
2738 rc = mdc_get_info_rpc(exp, keylen, key, *vallen, val);
2743 static int mdc_fsync(struct obd_export *exp, const struct lu_fid *fid,
2744 struct obd_capa *oc, struct ptlrpc_request **request)
2746 struct ptlrpc_request *req;
2751 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_SYNC);
2755 mdc_set_capa_size(req, &RMF_CAPA1, oc);
2757 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_SYNC);
2759 ptlrpc_request_free(req);
2763 mdc_pack_body(req, fid, oc, 0, 0, -1, 0);
2765 ptlrpc_request_set_replen(req);
2767 rc = ptlrpc_queue_wait(req);
2769 ptlrpc_req_finished(req);
2775 static int mdc_import_event(struct obd_device *obd, struct obd_import *imp,
2776 enum obd_import_event event)
2780 LASSERT(imp->imp_obd == obd);
2783 case IMP_EVENT_DISCON: {
2785 /* XXX Pass event up to OBDs stack. used only for FLD now */
2786 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_DISCON, NULL);
2790 case IMP_EVENT_INACTIVE: {
2791 struct client_obd *cli = &obd->u.cli;
2793 * Flush current sequence to make client obtain new one
2794 * from server in case of disconnect/reconnect.
2796 if (cli->cl_seq != NULL)
2797 seq_client_flush(cli->cl_seq);
2799 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_INACTIVE, NULL);
2802 case IMP_EVENT_INVALIDATE: {
2803 struct ldlm_namespace *ns = obd->obd_namespace;
2805 ldlm_namespace_cleanup(ns, LDLM_FL_LOCAL_ONLY);
2809 case IMP_EVENT_ACTIVE:
2810 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_ACTIVE, NULL);
2811 /* redo the kuc registration after reconnecting */
2813 rc = mdc_kuc_reregister(imp);
2816 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_OCD, NULL);
2818 case IMP_EVENT_DEACTIVATE:
2819 case IMP_EVENT_ACTIVATE:
2822 CERROR("Unknown import event %x\n", event);
2828 int mdc_fid_alloc(const struct lu_env *env, struct obd_export *exp,
2829 struct lu_fid *fid, struct md_op_data *op_data)
2831 struct client_obd *cli = &exp->exp_obd->u.cli;
2832 struct lu_client_seq *seq = cli->cl_seq;
2834 RETURN(seq_client_alloc_fid(env, seq, fid));
2837 static struct obd_uuid *mdc_get_uuid(struct obd_export *exp)
2839 struct client_obd *cli = &exp->exp_obd->u.cli;
2840 return &cli->cl_target_uuid;
2844 * Determine whether the lock can be canceled before replaying it during
2845 * recovery, non zero value will be return if the lock can be canceled,
2846 * or zero returned for not
2848 static int mdc_cancel_weight(struct ldlm_lock *lock)
2850 if (lock->l_resource->lr_type != LDLM_IBITS)
2853 /* FIXME: if we ever get into a situation where there are too many
2854 * opened files with open locks on a single node, then we really
2855 * should replay these open locks to reget it */
2856 if (lock->l_policy_data.l_inodebits.bits & MDS_INODELOCK_OPEN)
2862 static int mdc_resource_inode_free(struct ldlm_resource *res)
2864 if (res->lr_lvb_inode)
2865 res->lr_lvb_inode = NULL;
2870 static struct ldlm_valblock_ops inode_lvbo = {
2871 .lvbo_free = mdc_resource_inode_free
2874 static int mdc_llog_init(struct obd_device *obd)
2876 struct obd_llog_group *olg = &obd->obd_olg;
2877 struct llog_ctxt *ctxt;
2882 rc = llog_setup(NULL, obd, olg, LLOG_CHANGELOG_REPL_CTXT, obd,
2887 ctxt = llog_group_get_ctxt(olg, LLOG_CHANGELOG_REPL_CTXT);
2888 llog_initiator_connect(ctxt);
2889 llog_ctxt_put(ctxt);
2894 static void mdc_llog_finish(struct obd_device *obd)
2896 struct llog_ctxt *ctxt;
2900 ctxt = llog_get_context(obd, LLOG_CHANGELOG_REPL_CTXT);
2902 llog_cleanup(NULL, ctxt);
2907 static int mdc_setup(struct obd_device *obd, struct lustre_cfg *cfg)
2909 struct client_obd *cli = &obd->u.cli;
2913 OBD_ALLOC(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
2914 if (!cli->cl_rpc_lock)
2916 mdc_init_rpc_lock(cli->cl_rpc_lock);
2918 rc = ptlrpcd_addref();
2920 GOTO(err_rpc_lock, rc);
2922 OBD_ALLOC(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
2923 if (!cli->cl_close_lock)
2924 GOTO(err_ptlrpcd_decref, rc = -ENOMEM);
2925 mdc_init_rpc_lock(cli->cl_close_lock);
2927 rc = client_obd_setup(obd, cfg);
2929 GOTO(err_close_lock, rc);
2931 obd->obd_vars = lprocfs_mdc_obd_vars;
2932 lprocfs_obd_setup(obd);
2933 lprocfs_alloc_md_stats(obd, 0);
2935 sptlrpc_lprocfs_cliobd_attach(obd);
2936 ptlrpc_lprocfs_register_obd(obd);
2938 ns_register_cancel(obd->obd_namespace, mdc_cancel_weight);
2940 obd->obd_namespace->ns_lvbo = &inode_lvbo;
2942 rc = mdc_llog_init(obd);
2945 CERROR("failed to setup llogging subsystems\n");
2951 OBD_FREE(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
2955 OBD_FREE(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
2959 /* Initialize the default and maximum LOV EA and cookie sizes. This allows
2960 * us to make MDS RPCs with large enough reply buffers to hold a default
2961 * sized EA and cookie without having to calculate this (via a call into the
2962 * LOV + OSCs) each time we make an RPC. The maximum size is also tracked
2963 * but not used to avoid wastefully vmalloc()'ing large reply buffers when
2964 * a large number of stripes is possible. If a larger reply buffer is
2965 * required it will be reallocated in the ptlrpc layer due to overflow.
2967 static int mdc_init_ea_size(struct obd_export *exp, __u32 easize,
2968 __u32 def_easize, __u32 cookiesize,
2969 __u32 def_cookiesize)
2971 struct obd_device *obd = exp->exp_obd;
2972 struct client_obd *cli = &obd->u.cli;
2975 if (cli->cl_max_mds_easize < easize)
2976 cli->cl_max_mds_easize = easize;
2978 if (cli->cl_default_mds_easize < def_easize)
2979 cli->cl_default_mds_easize = def_easize;
2981 if (cli->cl_max_mds_cookiesize < cookiesize)
2982 cli->cl_max_mds_cookiesize = cookiesize;
2984 if (cli->cl_default_mds_cookiesize < def_cookiesize)
2985 cli->cl_default_mds_cookiesize = def_cookiesize;
2990 static int mdc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
2996 case OBD_CLEANUP_EARLY:
2998 case OBD_CLEANUP_EXPORTS:
2999 /* Failsafe, ok if racy */
3000 if (obd->obd_type->typ_refcnt <= 1)
3001 libcfs_kkuc_group_rem(0, KUC_GRP_HSM, NULL);
3003 obd_cleanup_client_import(obd);
3004 ptlrpc_lprocfs_unregister_obd(obd);
3005 lprocfs_obd_cleanup(obd);
3006 lprocfs_free_md_stats(obd);
3007 mdc_llog_finish(obd);
3013 static int mdc_cleanup(struct obd_device *obd)
3015 struct client_obd *cli = &obd->u.cli;
3017 OBD_FREE(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
3018 OBD_FREE(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
3022 return client_obd_cleanup(obd);
3025 static int mdc_process_config(struct obd_device *obd, obd_count len, void *buf)
3027 struct lustre_cfg *lcfg = buf;
3028 int rc = class_process_proc_param(PARAM_MDC, obd->obd_vars, lcfg, obd);
3029 return (rc > 0 ? 0: rc);
3033 /* get remote permission for current user on fid */
3034 static int mdc_get_remote_perm(struct obd_export *exp, const struct lu_fid *fid,
3035 struct obd_capa *oc, __u32 suppgid,
3036 struct ptlrpc_request **request)
3038 struct ptlrpc_request *req;
3042 LASSERT(client_is_remote(exp));
3045 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_GETATTR);
3049 mdc_set_capa_size(req, &RMF_CAPA1, oc);
3051 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR);
3053 ptlrpc_request_free(req);
3057 mdc_pack_body(req, fid, oc, OBD_MD_FLRMTPERM, 0, suppgid, 0);
3059 req_capsule_set_size(&req->rq_pill, &RMF_ACL, RCL_SERVER,
3060 sizeof(struct mdt_remote_perm));
3062 ptlrpc_request_set_replen(req);
3064 rc = ptlrpc_queue_wait(req);
3066 ptlrpc_req_finished(req);
3072 static int mdc_interpret_renew_capa(const struct lu_env *env,
3073 struct ptlrpc_request *req, void *args,
3076 struct mdc_renew_capa_args *ra = args;
3077 struct mdt_body *body = NULL;
3078 struct lustre_capa *capa;
3082 GOTO(out, capa = ERR_PTR(status));
3084 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
3086 GOTO(out, capa = ERR_PTR(-EFAULT));
3088 if ((body->mbo_valid & OBD_MD_FLOSSCAPA) == 0)
3089 GOTO(out, capa = ERR_PTR(-ENOENT));
3091 capa = req_capsule_server_get(&req->rq_pill, &RMF_CAPA2);
3093 GOTO(out, capa = ERR_PTR(-EFAULT));
3096 ra->ra_cb(ra->ra_oc, capa);
3100 static int mdc_renew_capa(struct obd_export *exp, struct obd_capa *oc,
3103 struct ptlrpc_request *req;
3104 struct mdc_renew_capa_args *ra;
3107 req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), &RQF_MDS_GETATTR,
3108 LUSTRE_MDS_VERSION, MDS_GETATTR);
3112 /* NB, OBD_MD_FLOSSCAPA is set here, but it doesn't necessarily mean the
3113 * capa to renew is oss capa.
3115 mdc_pack_body(req, &oc->c_capa.lc_fid, oc, OBD_MD_FLOSSCAPA, 0, -1, 0);
3116 ptlrpc_request_set_replen(req);
3118 CLASSERT(sizeof(*ra) <= sizeof(req->rq_async_args));
3119 ra = ptlrpc_req_async_args(req);
3122 req->rq_interpret_reply = mdc_interpret_renew_capa;
3123 ptlrpcd_add_req(req, PDL_POLICY_LOCAL, -1);
3127 static struct obd_ops mdc_obd_ops = {
3128 .o_owner = THIS_MODULE,
3129 .o_setup = mdc_setup,
3130 .o_precleanup = mdc_precleanup,
3131 .o_cleanup = mdc_cleanup,
3132 .o_add_conn = client_import_add_conn,
3133 .o_del_conn = client_import_del_conn,
3134 .o_connect = client_connect_import,
3135 .o_disconnect = client_disconnect_export,
3136 .o_iocontrol = mdc_iocontrol,
3137 .o_set_info_async = mdc_set_info_async,
3138 .o_statfs = mdc_statfs,
3139 .o_fid_init = client_fid_init,
3140 .o_fid_fini = client_fid_fini,
3141 .o_fid_alloc = mdc_fid_alloc,
3142 .o_import_event = mdc_import_event,
3143 .o_get_info = mdc_get_info,
3144 .o_process_config = mdc_process_config,
3145 .o_get_uuid = mdc_get_uuid,
3146 .o_quotactl = mdc_quotactl,
3147 .o_quotacheck = mdc_quotacheck
3150 static struct md_ops mdc_md_ops = {
3151 .m_getstatus = mdc_getstatus,
3152 .m_null_inode = mdc_null_inode,
3153 .m_find_cbdata = mdc_find_cbdata,
3154 .m_close = mdc_close,
3155 .m_create = mdc_create,
3156 .m_done_writing = mdc_done_writing,
3157 .m_enqueue = mdc_enqueue,
3158 .m_getattr = mdc_getattr,
3159 .m_getattr_name = mdc_getattr_name,
3160 .m_intent_lock = mdc_intent_lock,
3162 .m_rename = mdc_rename,
3163 .m_setattr = mdc_setattr,
3164 .m_setxattr = mdc_setxattr,
3165 .m_getxattr = mdc_getxattr,
3166 .m_fsync = mdc_fsync,
3167 .m_read_page = mdc_read_page,
3168 .m_unlink = mdc_unlink,
3169 .m_cancel_unused = mdc_cancel_unused,
3170 .m_init_ea_size = mdc_init_ea_size,
3171 .m_set_lock_data = mdc_set_lock_data,
3172 .m_lock_match = mdc_lock_match,
3173 .m_get_lustre_md = mdc_get_lustre_md,
3174 .m_free_lustre_md = mdc_free_lustre_md,
3175 .m_set_open_replay_data = mdc_set_open_replay_data,
3176 .m_clear_open_replay_data = mdc_clear_open_replay_data,
3177 .m_renew_capa = mdc_renew_capa,
3178 .m_unpack_capa = mdc_unpack_capa,
3179 .m_get_remote_perm = mdc_get_remote_perm,
3180 .m_intent_getattr_async = mdc_intent_getattr_async,
3181 .m_revalidate_lock = mdc_revalidate_lock
3184 static int __init mdc_init(void)
3186 return class_register_type(&mdc_obd_ops, &mdc_md_ops, true, NULL,
3187 LUSTRE_MDC_NAME, NULL);
3190 static void /*__exit*/ mdc_exit(void)
3192 class_unregister_type(LUSTRE_MDC_NAME);
3195 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
3196 MODULE_DESCRIPTION("Lustre Metadata Client");
3197 MODULE_LICENSE("GPL");
3199 module_init(mdc_init);
3200 module_exit(mdc_exit);