1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
38 # define EXPORT_SYMTAB
40 #define DEBUG_SUBSYSTEM S_MDC
43 # include <linux/module.h>
44 # include <linux/pagemap.h>
45 # include <linux/miscdevice.h>
46 # include <linux/init.h>
48 # include <liblustre.h>
51 #include <lustre_acl.h>
52 #include <obd_class.h>
53 #include <lustre_dlm.h>
54 #include <lustre_fid.h>
55 #include <md_object.h>
56 #include <lprocfs_status.h>
57 #include <lustre_param.h>
58 #include "mdc_internal.h"
59 #include <lustre/lustre_idl.h>
61 #define REQUEST_MINOR 244
63 static quota_interface_t *quota_interface;
64 extern quota_interface_t mdc_quota_interface;
66 static int mdc_cleanup(struct obd_device *obd);
68 int mdc_unpack_capa(struct obd_export *exp, struct ptlrpc_request *req,
69 const struct req_msg_field *field, struct obd_capa **oc)
71 struct lustre_capa *capa;
75 /* swabbed already in mdc_enqueue */
76 capa = req_capsule_server_get(&req->rq_pill, field);
80 c = alloc_capa(CAPA_SITE_CLIENT);
82 CDEBUG(D_INFO, "alloc capa failed!\n");
91 /* Helper that implements most of mdc_getstatus and signal_completed_replay. */
92 /* XXX this should become mdc_get_info("key"), sending MDS_GET_INFO RPC */
93 static int send_getstatus(struct obd_import *imp, struct lu_fid *rootfid,
94 struct obd_capa **pc, int level, int msg_flags)
96 struct ptlrpc_request *req;
97 struct mdt_body *body;
101 req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_GETSTATUS,
102 LUSTRE_MDS_VERSION, MDS_GETSTATUS);
106 mdc_pack_body(req, NULL, NULL, 0, 0, -1, 0);
107 lustre_msg_add_flags(req->rq_reqmsg, msg_flags);
108 req->rq_send_state = level;
110 ptlrpc_request_set_replen(req);
112 rc = ptlrpc_queue_wait(req);
116 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
118 GOTO(out, rc = -EPROTO);
120 if (body->valid & OBD_MD_FLMDSCAPA) {
121 rc = mdc_unpack_capa(NULL, req, &RMF_CAPA1, pc);
126 *rootfid = body->fid1;
128 "root fid="DFID", last_committed="LPU64"\n",
130 lustre_msg_get_last_committed(req->rq_repmsg));
133 ptlrpc_req_finished(req);
137 /* This should be mdc_get_info("rootfid") */
138 int mdc_getstatus(struct obd_export *exp, struct lu_fid *rootfid,
139 struct obd_capa **pc)
141 return send_getstatus(class_exp2cliimp(exp), rootfid, pc,
146 * This function now is known to always saying that it will receive 4 buffers
147 * from server. Even for cases when acl_size and md_size is zero, RPC header
148 * will contain 4 fields and RPC itself will contain zero size fields. This is
149 * because mdt_getattr*() _always_ returns 4 fields, but if acl is not needed
150 * and thus zero, it shrinks it, making zero size. The same story about
151 * md_size. And this is course of problem when client waits for smaller number
152 * of fields. This issue will be fixed later when client gets aware of RPC
155 static int mdc_getattr_common(struct obd_export *exp,
156 struct ptlrpc_request *req)
158 struct req_capsule *pill = &req->rq_pill;
159 struct mdt_body *body;
164 /* Request message already built. */
165 rc = ptlrpc_queue_wait(req);
169 /* sanity check for the reply */
170 body = req_capsule_server_get(pill, &RMF_MDT_BODY);
174 CDEBUG(D_NET, "mode: %o\n", body->mode);
176 if (body->eadatasize != 0) {
177 mdc_update_max_ea_from_body(exp, body);
179 eadata = req_capsule_server_sized_get(pill, &RMF_MDT_MD,
185 if (body->valid & OBD_MD_FLRMTPERM) {
186 struct mdt_remote_perm *perm;
188 LASSERT(client_is_remote(exp));
189 perm = req_capsule_server_swab_get(pill, &RMF_ACL,
190 lustre_swab_mdt_remote_perm);
195 if (body->valid & OBD_MD_FLMDSCAPA) {
196 struct lustre_capa *capa;
197 capa = req_capsule_server_get(pill, &RMF_CAPA1);
205 int mdc_getattr(struct obd_export *exp, const struct lu_fid *fid,
206 struct obd_capa *oc, obd_valid valid, int ea_size,
207 struct ptlrpc_request **request)
209 struct ptlrpc_request *req;
214 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_GETATTR);
218 mdc_set_capa_size(req, &RMF_CAPA1, oc);
220 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR);
222 ptlrpc_request_free(req);
226 mdc_pack_body(req, fid, oc, valid, ea_size, -1, 0);
228 req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER, ea_size);
229 if (valid & OBD_MD_FLRMTPERM) {
230 LASSERT(client_is_remote(exp));
231 req_capsule_set_size(&req->rq_pill, &RMF_ACL, RCL_SERVER,
232 sizeof(struct mdt_remote_perm));
234 ptlrpc_request_set_replen(req);
236 rc = mdc_getattr_common(exp, req);
238 ptlrpc_req_finished(req);
244 int mdc_getattr_name(struct obd_export *exp, const struct lu_fid *fid,
245 struct obd_capa *oc, const char *filename, int namelen,
246 obd_valid valid, int ea_size, __u32 suppgid,
247 struct ptlrpc_request **request)
249 struct ptlrpc_request *req;
254 req = ptlrpc_request_alloc(class_exp2cliimp(exp),
255 &RQF_MDS_GETATTR_NAME);
259 mdc_set_capa_size(req, &RMF_CAPA1, oc);
260 req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT, namelen);
262 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR_NAME);
264 ptlrpc_request_free(req);
268 mdc_pack_body(req, fid, oc, valid, ea_size, suppgid, 0);
271 char *name = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
272 LASSERT(strnlen(filename, namelen) == namelen - 1);
273 memcpy(name, filename, namelen);
276 req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER, ea_size);
277 ptlrpc_request_set_replen(req);
279 rc = mdc_getattr_common(exp, req);
281 ptlrpc_req_finished(req);
287 static int mdc_is_subdir(struct obd_export *exp,
288 const struct lu_fid *pfid,
289 const struct lu_fid *cfid,
290 struct ptlrpc_request **request)
292 struct ptlrpc_request *req;
298 req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
299 &RQF_MDS_IS_SUBDIR, LUSTRE_MDS_VERSION,
304 mdc_is_subdir_pack(req, pfid, cfid, 0);
305 ptlrpc_request_set_replen(req);
307 rc = ptlrpc_queue_wait(req);
308 if (rc && rc != -EREMOTE)
309 ptlrpc_req_finished(req);
315 static int mdc_xattr_common(struct obd_export *exp,const struct req_format *fmt,
316 const struct lu_fid *fid,
317 struct obd_capa *oc, int opcode, obd_valid valid,
318 const char *xattr_name, const char *input,
319 int input_size, int output_size, int flags,
320 __u32 suppgid, struct ptlrpc_request **request)
322 struct ptlrpc_request *req;
323 int xattr_namelen = 0;
329 req = ptlrpc_request_alloc(class_exp2cliimp(exp), fmt);
333 mdc_set_capa_size(req, &RMF_CAPA1, oc);
335 xattr_namelen = strlen(xattr_name) + 1;
336 req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
341 req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_CLIENT,
345 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, opcode);
347 ptlrpc_request_free(req);
351 if (opcode == MDS_REINT) {
352 struct mdt_rec_setxattr *rec;
354 CLASSERT(sizeof(struct mdt_rec_setxattr) ==
355 sizeof(struct mdt_rec_reint));
356 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
357 rec->sx_opcode = REINT_SETXATTR;
359 * cfs_curproc_fs{u,g}id() should replace
360 * current->fs{u,g}id for portability.
362 rec->sx_fsuid = cfs_curproc_fsuid();
363 rec->sx_fsgid = cfs_curproc_fsgid();
364 rec->sx_cap = cfs_curproc_cap_pack();
365 rec->sx_suppgid1 = suppgid;
366 rec->sx_suppgid2 = -1;
368 rec->sx_valid = valid | OBD_MD_FLCTIME;
369 rec->sx_time = cfs_time_current_sec();
370 rec->sx_size = output_size;
371 rec->sx_flags = flags;
373 mdc_pack_capa(req, &RMF_CAPA1, oc);
375 mdc_pack_body(req, fid, oc, valid, output_size, suppgid, flags);
379 tmp = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
380 memcpy(tmp, xattr_name, xattr_namelen);
383 tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
384 memcpy(tmp, input, input_size);
387 if (req_capsule_has_field(&req->rq_pill, &RMF_EADATA, RCL_SERVER))
388 req_capsule_set_size(&req->rq_pill, &RMF_EADATA,
389 RCL_SERVER, output_size);
390 ptlrpc_request_set_replen(req);
393 if (opcode == MDS_REINT)
394 mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
396 rc = ptlrpc_queue_wait(req);
398 if (opcode == MDS_REINT)
399 mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
402 ptlrpc_req_finished(req);
408 int mdc_setxattr(struct obd_export *exp, const struct lu_fid *fid,
409 struct obd_capa *oc, obd_valid valid, const char *xattr_name,
410 const char *input, int input_size, int output_size,
411 int flags, __u32 suppgid, struct ptlrpc_request **request)
413 return mdc_xattr_common(exp, &RQF_MDS_REINT_SETXATTR,
414 fid, oc, MDS_REINT, valid, xattr_name,
415 input, input_size, output_size, flags,
419 int mdc_getxattr(struct obd_export *exp, const struct lu_fid *fid,
420 struct obd_capa *oc, obd_valid valid, const char *xattr_name,
421 const char *input, int input_size, int output_size,
422 int flags, struct ptlrpc_request **request)
424 return mdc_xattr_common(exp, &RQF_MDS_GETXATTR,
425 fid, oc, MDS_GETXATTR, valid, xattr_name,
426 input, input_size, output_size, flags,
430 #ifdef CONFIG_FS_POSIX_ACL
431 static int mdc_unpack_acl(struct ptlrpc_request *req, struct lustre_md *md)
433 struct req_capsule *pill = &req->rq_pill;
434 struct mdt_body *body = md->body;
435 struct posix_acl *acl;
443 buf = req_capsule_server_sized_get(pill, &RMF_ACL, body->aclsize);
448 acl = posix_acl_from_xattr(buf, body->aclsize);
451 CERROR("convert xattr to acl: %d\n", rc);
455 rc = posix_acl_valid(acl);
457 CERROR("validate acl: %d\n", rc);
458 posix_acl_release(acl);
466 #define mdc_unpack_acl(req, md) 0
469 int mdc_get_lustre_md(struct obd_export *exp, struct ptlrpc_request *req,
470 struct obd_export *dt_exp, struct obd_export *md_exp,
471 struct lustre_md *md)
473 struct req_capsule *pill = &req->rq_pill;
478 memset(md, 0, sizeof(*md));
480 md->body = req_capsule_server_get(pill, &RMF_MDT_BODY);
481 LASSERT(md->body != NULL);
483 if (md->body->valid & OBD_MD_FLEASIZE) {
485 struct lov_mds_md *lmm;
487 if (!S_ISREG(md->body->mode)) {
488 CDEBUG(D_INFO, "OBD_MD_FLEASIZE set, should be a "
489 "regular file, but is not\n");
490 GOTO(out, rc = -EPROTO);
493 if (md->body->eadatasize == 0) {
494 CDEBUG(D_INFO, "OBD_MD_FLEASIZE set, "
495 "but eadatasize 0\n");
496 GOTO(out, rc = -EPROTO);
498 lmmsize = md->body->eadatasize;
499 lmm = req_capsule_server_sized_get(pill, &RMF_MDT_MD, lmmsize);
501 GOTO(out, rc = -EPROTO);
503 rc = obd_unpackmd(dt_exp, &md->lsm, lmm, lmmsize);
507 if (rc < sizeof(*md->lsm)) {
508 CDEBUG(D_INFO, "lsm size too small: "
509 "rc < sizeof (*md->lsm) (%d < %d)\n",
510 rc, (int)sizeof(*md->lsm));
511 GOTO(out, rc = -EPROTO);
514 } else if (md->body->valid & OBD_MD_FLDIREA) {
516 struct lov_mds_md *lmv;
518 if(!S_ISDIR(md->body->mode)) {
519 CDEBUG(D_INFO, "OBD_MD_FLDIREA set, should be a "
520 "directory, but is not\n");
521 GOTO(out, rc = -EPROTO);
524 if (md->body->eadatasize == 0) {
525 CDEBUG(D_INFO, "OBD_MD_FLDIREA is set, "
526 "but eadatasize 0\n");
529 if (md->body->valid & OBD_MD_MEA) {
530 lmvsize = md->body->eadatasize;
531 lmv = req_capsule_server_sized_get(pill, &RMF_MDT_MD,
534 GOTO(out, rc = -EPROTO);
536 rc = obd_unpackmd(md_exp, (void *)&md->mea, lmv,
541 if (rc < sizeof(*md->mea)) {
542 CDEBUG(D_INFO, "size too small: "
543 "rc < sizeof(*md->mea) (%d < %d)\n",
544 rc, (int)sizeof(*md->mea));
545 GOTO(out, rc = -EPROTO);
551 if (md->body->valid & OBD_MD_FLRMTPERM) {
552 /* remote permission */
553 LASSERT(client_is_remote(exp));
554 md->remote_perm = req_capsule_server_swab_get(pill, &RMF_ACL,
555 lustre_swab_mdt_remote_perm);
556 if (!md->remote_perm)
557 GOTO(out, rc = -EPROTO);
559 else if (md->body->valid & OBD_MD_FLACL) {
560 /* for ACL, it's possible that FLACL is set but aclsize is zero.
561 * only when aclsize != 0 there's an actual segment for ACL
564 if (md->body->aclsize) {
565 rc = mdc_unpack_acl(req, md);
568 #ifdef CONFIG_FS_POSIX_ACL
570 md->posix_acl = NULL;
574 if (md->body->valid & OBD_MD_FLMDSCAPA) {
575 struct obd_capa *oc = NULL;
577 rc = mdc_unpack_capa(NULL, req, &RMF_CAPA1, &oc);
583 if (md->body->valid & OBD_MD_FLOSSCAPA) {
584 struct obd_capa *oc = NULL;
586 rc = mdc_unpack_capa(NULL, req, &RMF_CAPA2, &oc);
596 capa_put(md->oss_capa);
600 capa_put(md->mds_capa);
603 #ifdef CONFIG_FS_POSIX_ACL
604 posix_acl_release(md->posix_acl);
607 obd_free_memmd(dt_exp, &md->lsm);
612 int mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md)
619 * Handles both OPEN and SETATTR RPCs for OPEN-CLOSE and SETATTR-DONE_WRITING
622 void mdc_replay_open(struct ptlrpc_request *req)
624 struct md_open_data *mod = req->rq_cb_data;
625 struct ptlrpc_request *close_req;
626 struct obd_client_handle *och;
627 struct lustre_handle old;
628 struct mdt_body *body;
632 DEBUG_REQ(D_ERROR, req,
633 "Can't properly replay without open data.");
638 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
639 LASSERT(body != NULL);
643 struct lustre_handle *file_fh;
645 LASSERT(och->och_magic == OBD_CLIENT_HANDLE_MAGIC);
647 file_fh = &och->och_fh;
648 CDEBUG(D_HA, "updating handle from "LPX64" to "LPX64"\n",
649 file_fh->cookie, body->handle.cookie);
651 *file_fh = body->handle;
653 close_req = mod->mod_close_req;
654 if (close_req != NULL) {
655 __u32 opc = lustre_msg_get_opc(close_req->rq_reqmsg);
656 struct mdt_ioepoch *epoch;
658 LASSERT(opc == MDS_CLOSE || opc == MDS_DONE_WRITING);
659 epoch = req_capsule_client_get(&close_req->rq_pill,
664 LASSERT(!memcmp(&old, &epoch->handle, sizeof(old)));
665 DEBUG_REQ(D_HA, close_req, "updating close body with new fh");
666 epoch->handle = body->handle;
671 void mdc_commit_open(struct ptlrpc_request *req)
673 struct md_open_data *mod = req->rq_cb_data;
678 * No need to touch md_open_data::mod_och, it holds a reference on
679 * \var mod and will zero references to each other, \var mod will be
680 * freed after that when md_open_data::mod_och will put the reference.
684 * Do not let open request to disappear as it still may be needed
685 * for close rpc to happen (it may happen on evict only, otherwise
686 * ptlrpc_request::rq_replay does not let mdc_commit_open() to be
687 * called), just mark this rpc as committed to distinguish these 2
688 * cases, see mdc_close() for details. The open request reference will
689 * be put along with freeing \var mod.
691 ptlrpc_request_addref(req);
692 cfs_spin_lock(&req->rq_lock);
693 req->rq_committed = 1;
694 cfs_spin_unlock(&req->rq_lock);
695 req->rq_cb_data = NULL;
699 int mdc_set_open_replay_data(struct obd_export *exp,
700 struct obd_client_handle *och,
701 struct ptlrpc_request *open_req)
703 struct md_open_data *mod;
704 struct mdt_rec_create *rec;
705 struct mdt_body *body;
706 struct obd_import *imp = open_req->rq_import;
709 if (!open_req->rq_replay)
712 rec = req_capsule_client_get(&open_req->rq_pill, &RMF_REC_REINT);
713 body = req_capsule_server_get(&open_req->rq_pill, &RMF_MDT_BODY);
714 LASSERT(rec != NULL);
715 /* Incoming message in my byte order (it's been swabbed). */
716 /* Outgoing messages always in my byte order. */
717 LASSERT(body != NULL);
719 /* Only if the import is replayable, we set replay_open data */
720 if (och && imp->imp_replayable) {
721 mod = obd_mod_alloc();
723 DEBUG_REQ(D_ERROR, open_req,
724 "Can't allocate md_open_data");
729 * Take a reference on \var mod, to be freed on mdc_close().
730 * It protects \var mod from being freed on eviction (commit
731 * callback is called despite rq_replay flag).
732 * Another reference for \var och.
737 cfs_spin_lock(&open_req->rq_lock);
740 mod->mod_open_req = open_req;
741 open_req->rq_cb_data = mod;
742 open_req->rq_commit_cb = mdc_commit_open;
743 cfs_spin_unlock(&open_req->rq_lock);
746 rec->cr_fid2 = body->fid1;
747 rec->cr_ioepoch = body->ioepoch;
748 rec->cr_old_handle.cookie = body->handle.cookie;
749 open_req->rq_replay_cb = mdc_replay_open;
750 if (!fid_is_sane(&body->fid1)) {
751 DEBUG_REQ(D_ERROR, open_req, "Saving replay request with "
756 DEBUG_REQ(D_RPCTRACE, open_req, "Set up open replay data");
760 int mdc_clear_open_replay_data(struct obd_export *exp,
761 struct obd_client_handle *och)
763 struct md_open_data *mod = och->och_mod;
766 LASSERT(mod != LP_POISON && mod != NULL);
775 /* Prepares the request for the replay by the given reply */
776 static void mdc_close_handle_reply(struct ptlrpc_request *req,
777 struct md_op_data *op_data, int rc) {
778 struct mdt_body *repbody;
779 struct mdt_ioepoch *epoch;
781 if (req && rc == -EAGAIN) {
782 repbody = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
783 epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
785 epoch->flags |= MF_SOM_AU;
786 if (repbody->valid & OBD_MD_FLGETATTRLOCK)
787 op_data->op_flags |= MF_GETATTR_LOCK;
791 int mdc_close(struct obd_export *exp, struct md_op_data *op_data,
792 struct md_open_data *mod, struct ptlrpc_request **request)
794 struct obd_device *obd = class_exp2obd(exp);
795 struct ptlrpc_request *req;
800 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_CLOSE);
804 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
806 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_CLOSE);
808 ptlrpc_request_free(req);
812 /* To avoid a livelock (bug 7034), we need to send CLOSE RPCs to a
813 * portal whose threads are not taking any DLM locks and are therefore
814 * always progressing */
815 req->rq_request_portal = MDS_READPAGE_PORTAL;
816 ptlrpc_at_set_req_timeout(req);
818 /* Ensure that this close's handle is fixed up during replay. */
819 if (likely(mod != NULL)) {
820 LASSERTF(mod->mod_open_req != NULL &&
821 mod->mod_open_req->rq_type != LI_POISON,
822 "POISONED open %p!\n", mod->mod_open_req);
824 mod->mod_close_req = req;
826 DEBUG_REQ(D_HA, mod->mod_open_req, "matched open");
827 /* We no longer want to preserve this open for replay even
828 * though the open was committed. b=3632, b=3633 */
829 cfs_spin_lock(&mod->mod_open_req->rq_lock);
830 mod->mod_open_req->rq_replay = 0;
831 cfs_spin_unlock(&mod->mod_open_req->rq_lock);
833 CDEBUG(D_HA, "couldn't find open req; expecting close error\n");
836 mdc_close_pack(req, op_data);
838 req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
839 obd->u.cli.cl_max_mds_easize);
840 req_capsule_set_size(&req->rq_pill, &RMF_LOGCOOKIES, RCL_SERVER,
841 obd->u.cli.cl_max_mds_cookiesize);
843 ptlrpc_request_set_replen(req);
845 mdc_get_rpc_lock(obd->u.cli.cl_close_lock, NULL);
846 rc = ptlrpc_queue_wait(req);
847 mdc_put_rpc_lock(obd->u.cli.cl_close_lock, NULL);
849 if (req->rq_repmsg == NULL) {
850 CDEBUG(D_RPCTRACE, "request failed to send: %p, %d\n", req,
853 rc = req->rq_status ?: -EIO;
854 } else if (rc == 0 || rc == -EAGAIN) {
855 struct mdt_body *body;
857 rc = lustre_msg_get_status(req->rq_repmsg);
858 if (lustre_msg_get_type(req->rq_repmsg) == PTL_RPC_MSG_ERR) {
859 DEBUG_REQ(D_ERROR, req, "type == PTL_RPC_MSG_ERR, err "
864 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
867 } else if (rc == -ESTALE) {
869 * it can be allowed error after 3633 if open was committed and
870 * server failed before close was sent. Let's check if mod
871 * exists and return no error in that case
874 LASSERT(mod->mod_open_req != NULL);
875 if (mod->mod_open_req->rq_committed)
882 mod->mod_close_req = NULL;
883 /* Since now, mod is accessed through open_req only,
884 * thus close req does not keep a reference on mod anymore. */
888 mdc_close_handle_reply(req, op_data, rc);
892 int mdc_done_writing(struct obd_export *exp, struct md_op_data *op_data,
893 struct md_open_data *mod)
895 struct obd_device *obd = class_exp2obd(exp);
896 struct ptlrpc_request *req;
900 req = ptlrpc_request_alloc(class_exp2cliimp(exp),
901 &RQF_MDS_DONE_WRITING);
905 mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
906 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_DONE_WRITING);
908 ptlrpc_request_free(req);
913 LASSERTF(mod->mod_open_req != NULL &&
914 mod->mod_open_req->rq_type != LI_POISON,
915 "POISONED setattr %p!\n", mod->mod_open_req);
917 mod->mod_close_req = req;
918 DEBUG_REQ(D_HA, mod->mod_open_req, "matched setattr");
919 /* We no longer want to preserve this setattr for replay even
920 * though the open was committed. b=3632, b=3633 */
921 cfs_spin_lock(&mod->mod_open_req->rq_lock);
922 mod->mod_open_req->rq_replay = 0;
923 cfs_spin_unlock(&mod->mod_open_req->rq_lock);
926 mdc_close_pack(req, op_data);
927 ptlrpc_request_set_replen(req);
929 mdc_get_rpc_lock(obd->u.cli.cl_close_lock, NULL);
930 rc = ptlrpc_queue_wait(req);
931 mdc_put_rpc_lock(obd->u.cli.cl_close_lock, NULL);
935 * it can be allowed error after 3633 if open or setattr were
936 * committed and server failed before close was sent.
937 * Let's check if mod exists and return no error in that case
940 LASSERT(mod->mod_open_req != NULL);
941 if (mod->mod_open_req->rq_committed)
948 mod->mod_close_req = NULL;
949 /* Since now, mod is accessed through setattr req only,
950 * thus DW req does not keep a reference on mod anymore. */
954 mdc_close_handle_reply(req, op_data, rc);
955 ptlrpc_req_finished(req);
959 #ifdef HAVE_SPLIT_SUPPORT
960 int mdc_sendpage(struct obd_export *exp, const struct lu_fid *fid,
961 const struct page *page, int offset)
963 struct ptlrpc_request *req;
964 struct ptlrpc_bulk_desc *desc;
968 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_WRITEPAGE);
972 /* FIXME: capa doesn't support split yet */
973 mdc_set_capa_size(req, &RMF_CAPA1, NULL);
975 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_WRITEPAGE);
977 ptlrpc_request_free(req);
981 req->rq_request_portal = MDS_READPAGE_PORTAL;
982 ptlrpc_at_set_req_timeout(req);
984 desc = ptlrpc_prep_bulk_imp(req, 1, BULK_GET_SOURCE, MDS_BULK_PORTAL);
986 GOTO(out, rc = -ENOMEM);
988 /* NB req now owns desc and will free it when it gets freed. */
989 ptlrpc_prep_bulk_page(desc, (struct page *)page, 0, offset);
990 mdc_readdir_pack(req, 0, offset, fid, NULL);
992 ptlrpc_request_set_replen(req);
993 rc = ptlrpc_queue_wait(req);
997 rc = sptlrpc_cli_unwrap_bulk_write(req, req->rq_bulk);
999 ptlrpc_req_finished(req);
1002 EXPORT_SYMBOL(mdc_sendpage);
1005 int mdc_readpage(struct obd_export *exp, const struct lu_fid *fid,
1006 struct obd_capa *oc, __u64 offset, struct page *page,
1007 struct ptlrpc_request **request)
1009 struct ptlrpc_request *req;
1010 struct ptlrpc_bulk_desc *desc;
1015 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_READPAGE);
1019 mdc_set_capa_size(req, &RMF_CAPA1, oc);
1021 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_READPAGE);
1023 ptlrpc_request_free(req);
1027 req->rq_request_portal = MDS_READPAGE_PORTAL;
1028 ptlrpc_at_set_req_timeout(req);
1030 desc = ptlrpc_prep_bulk_imp(req, 1, BULK_PUT_SINK, MDS_BULK_PORTAL);
1032 ptlrpc_request_free(req);
1036 /* NB req now owns desc and will free it when it gets freed */
1037 ptlrpc_prep_bulk_page(desc, page, 0, CFS_PAGE_SIZE);
1038 mdc_readdir_pack(req, offset, CFS_PAGE_SIZE, fid, oc);
1040 ptlrpc_request_set_replen(req);
1041 rc = ptlrpc_queue_wait(req);
1043 ptlrpc_req_finished(req);
1047 rc = sptlrpc_cli_unwrap_bulk_read(req, req->rq_bulk,
1048 req->rq_bulk->bd_nob_transferred);
1050 ptlrpc_req_finished(req);
1054 if (req->rq_bulk->bd_nob_transferred != CFS_PAGE_SIZE) {
1055 CERROR("Unexpected # bytes transferred: %d (%ld expected)\n",
1056 req->rq_bulk->bd_nob_transferred, CFS_PAGE_SIZE);
1057 ptlrpc_req_finished(req);
1065 static int mdc_ioc_fid2path(struct obd_export *exp, struct getinfo_fid2path *gf)
1067 __u32 keylen, vallen;
1071 if (gf->gf_pathlen > PATH_MAX)
1072 RETURN(-ENAMETOOLONG);
1073 if (gf->gf_pathlen < 2)
1076 /* Key is KEY_FID2PATH + getinfo_fid2path description */
1077 keylen = cfs_size_round(sizeof(KEY_FID2PATH)) + sizeof(*gf);
1078 OBD_ALLOC(key, keylen);
1081 memcpy(key, KEY_FID2PATH, sizeof(KEY_FID2PATH));
1082 memcpy(key + cfs_size_round(sizeof(KEY_FID2PATH)), gf, sizeof(*gf));
1084 CDEBUG(D_IOCTL, "path get "DFID" from "LPU64" #%d\n",
1085 PFID(&gf->gf_fid), gf->gf_recno, gf->gf_linkno);
1087 if (!fid_is_sane(&gf->gf_fid))
1088 GOTO(out, rc = -EINVAL);
1090 /* Val is struct getinfo_fid2path result plus path */
1091 vallen = sizeof(*gf) + gf->gf_pathlen;
1093 rc = obd_get_info(exp, keylen, key, &vallen, gf, NULL);
1097 if (vallen <= sizeof(*gf))
1098 GOTO(out, rc = -EPROTO);
1099 else if (vallen > sizeof(*gf) + gf->gf_pathlen)
1100 GOTO(out, rc = -EOVERFLOW);
1102 CDEBUG(D_IOCTL, "path get "DFID" from "LPU64" #%d\n%s\n",
1103 PFID(&gf->gf_fid), gf->gf_recno, gf->gf_linkno, gf->gf_path);
1106 OBD_FREE(key, keylen);
1110 static int mdc_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
1111 void *karg, void *uarg)
1113 struct obd_device *obd = exp->exp_obd;
1114 struct obd_ioctl_data *data = karg;
1115 struct obd_import *imp = obd->u.cli.cl_import;
1116 struct llog_ctxt *ctxt;
1120 if (!cfs_try_module_get(THIS_MODULE)) {
1121 CERROR("Can't get module. Is it alive?");
1125 case OBD_IOC_CHANGELOG_CLEAR: {
1126 struct ioc_changelog_clear *icc = karg;
1127 struct changelog_setinfo cs =
1128 {icc->icc_recno, icc->icc_id};
1129 rc = obd_set_info_async(exp, strlen(KEY_CHANGELOG_CLEAR),
1130 KEY_CHANGELOG_CLEAR, sizeof(cs), &cs,
1134 case OBD_IOC_FID2PATH: {
1135 rc = mdc_ioc_fid2path(exp, karg);
1138 case OBD_IOC_CLIENT_RECOVER:
1139 rc = ptlrpc_recover_import(imp, data->ioc_inlbuf1);
1143 case IOC_OSC_SET_ACTIVE:
1144 rc = ptlrpc_set_import_active(imp, data->ioc_offset);
1146 case OBD_IOC_PARSE: {
1147 ctxt = llog_get_context(exp->exp_obd, LLOG_CONFIG_REPL_CTXT);
1148 rc = class_config_parse_llog(ctxt, data->ioc_inlbuf1, NULL);
1149 llog_ctxt_put(ctxt);
1153 case OBD_IOC_LLOG_INFO:
1154 case OBD_IOC_LLOG_PRINT: {
1155 ctxt = llog_get_context(obd, LLOG_CONFIG_REPL_CTXT);
1156 rc = llog_ioctl(ctxt, cmd, data);
1157 llog_ctxt_put(ctxt);
1161 case OBD_IOC_POLL_QUOTACHECK:
1162 rc = lquota_poll_check(quota_interface, exp,
1163 (struct if_quotacheck *)karg);
1165 case OBD_IOC_PING_TARGET:
1166 rc = ptlrpc_obd_ping(obd);
1169 CERROR("mdc_ioctl(): unrecognised ioctl %#x\n", cmd);
1170 GOTO(out, rc = -ENOTTY);
1173 cfs_module_put(THIS_MODULE);
1178 int mdc_get_info_rpc(struct obd_export *exp,
1179 obd_count keylen, void *key,
1180 int vallen, void *val)
1182 struct obd_import *imp = class_exp2cliimp(exp);
1183 struct ptlrpc_request *req;
1188 req = ptlrpc_request_alloc(imp, &RQF_MDS_GET_INFO);
1192 req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_KEY,
1193 RCL_CLIENT, keylen);
1194 req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_VALLEN,
1195 RCL_CLIENT, sizeof(__u32));
1197 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GET_INFO);
1199 ptlrpc_request_free(req);
1203 tmp = req_capsule_client_get(&req->rq_pill, &RMF_GETINFO_KEY);
1204 memcpy(tmp, key, keylen);
1205 tmp = req_capsule_client_get(&req->rq_pill, &RMF_GETINFO_VALLEN);
1206 memcpy(tmp, &vallen, sizeof(__u32));
1208 req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_VAL,
1209 RCL_SERVER, vallen);
1210 ptlrpc_request_set_replen(req);
1212 rc = ptlrpc_queue_wait(req);
1214 tmp = req_capsule_server_get(&req->rq_pill, &RMF_GETINFO_VAL);
1215 memcpy(val, tmp, vallen);
1216 if (ptlrpc_rep_need_swab(req)) {
1217 if (KEY_IS(KEY_FID2PATH)) {
1218 lustre_swab_fid2path(val);
1222 ptlrpc_req_finished(req);
1227 static void lustre_swab_hai(struct hsm_action_item *h)
1229 __swab32s(&h->hai_len);
1230 __swab32s(&h->hai_action);
1231 lustre_swab_lu_fid(&h->hai_fid);
1232 __swab64s(&h->hai_cookie);
1233 __swab64s(&h->hai_extent_start);
1234 __swab64s(&h->hai_extent_end);
1235 __swab64s(&h->hai_gid);
1238 static void lustre_swab_hal(struct hsm_action_list *h)
1240 struct hsm_action_item *hai;
1243 __swab32s(&h->hal_version);
1244 __swab32s(&h->hal_count);
1245 __swab32s(&h->hal_archive_num);
1247 for (i = 0; i < h->hal_count; i++) {
1248 lustre_swab_hai(hai);
1249 hai = hai_next(hai);
1254 * Send a message to any listening copytools, nonblocking
1255 * @param val LNL message (lnl_hdr + hsm_action_list)
1256 * @param len total length of message
1258 static int mdc_hsm_copytool_send(int len, void *val)
1260 struct lnl_hdr *lh = (struct lnl_hdr *)val;
1261 struct hsm_action_list *hal = (struct hsm_action_list *)(lh + 1);
1265 if (len < sizeof(*lh) + sizeof(*hal)) {
1266 CERROR("Short HSM message %d < %d\n", len,
1267 (int) (sizeof(*lh) + sizeof(*hal)));
1270 if (lh->lnl_magic == __swab16(LNL_MAGIC)) {
1271 lustre_swab_lnlh(lh);
1272 lustre_swab_hal(hal);
1273 } else if (lh->lnl_magic != LNL_MAGIC) {
1274 CERROR("Bad magic %x!=%x\n", lh->lnl_magic, LNL_MAGIC);
1278 CDEBUG(D_IOCTL, " Received message mg=%x t=%d m=%d l=%d actions=%d\n",
1279 lh->lnl_magic, lh->lnl_transport, lh->lnl_msgtype,
1280 lh->lnl_msglen, hal->hal_count);
1282 /* Broadcast to HSM listeners */
1283 rc = libcfs_klnl_msg_put(0, LNL_GRP_HSM, lh);
1288 int mdc_set_info_async(struct obd_export *exp,
1289 obd_count keylen, void *key,
1290 obd_count vallen, void *val,
1291 struct ptlrpc_request_set *set)
1293 struct obd_import *imp = class_exp2cliimp(exp);
1297 if (KEY_IS(KEY_INIT_RECOV)) {
1298 if (vallen != sizeof(int))
1300 cfs_spin_lock(&imp->imp_lock);
1301 imp->imp_initial_recov = *(int *)val;
1302 cfs_spin_unlock(&imp->imp_lock);
1303 CDEBUG(D_HA, "%s: set imp_initial_recov = %d\n",
1304 exp->exp_obd->obd_name, imp->imp_initial_recov);
1307 /* Turn off initial_recov after we try all backup servers once */
1308 if (KEY_IS(KEY_INIT_RECOV_BACKUP)) {
1309 if (vallen != sizeof(int))
1311 cfs_spin_lock(&imp->imp_lock);
1312 imp->imp_initial_recov_bk = *(int *)val;
1313 if (imp->imp_initial_recov_bk)
1314 imp->imp_initial_recov = 1;
1315 cfs_spin_unlock(&imp->imp_lock);
1316 CDEBUG(D_HA, "%s: set imp_initial_recov_bk = %d\n",
1317 exp->exp_obd->obd_name, imp->imp_initial_recov_bk);
1320 if (KEY_IS(KEY_READ_ONLY)) {
1321 if (vallen != sizeof(int))
1324 cfs_spin_lock(&imp->imp_lock);
1325 if (*((int *)val)) {
1326 imp->imp_connect_flags_orig |= OBD_CONNECT_RDONLY;
1327 imp->imp_connect_data.ocd_connect_flags |= OBD_CONNECT_RDONLY;
1329 imp->imp_connect_flags_orig &= ~OBD_CONNECT_RDONLY;
1330 imp->imp_connect_data.ocd_connect_flags &= ~OBD_CONNECT_RDONLY;
1332 cfs_spin_unlock(&imp->imp_lock);
1334 rc = target_set_info_rpc(imp, MDS_SET_INFO,
1335 keylen, key, vallen, val, set);
1338 if (KEY_IS(KEY_SPTLRPC_CONF)) {
1339 sptlrpc_conf_client_adapt(exp->exp_obd);
1342 if (KEY_IS(KEY_FLUSH_CTX)) {
1343 sptlrpc_import_flush_my_ctx(imp);
1346 if (KEY_IS(KEY_MDS_CONN)) {
1347 /* mds-mds import */
1348 cfs_spin_lock(&imp->imp_lock);
1349 imp->imp_server_timeout = 1;
1350 cfs_spin_unlock(&imp->imp_lock);
1351 imp->imp_client->cli_request_portal = MDS_MDS_PORTAL;
1352 CDEBUG(D_OTHER, "%s: timeout / 2\n", exp->exp_obd->obd_name);
1355 if (KEY_IS(KEY_CHANGELOG_CLEAR)) {
1356 rc = target_set_info_rpc(imp, MDS_SET_INFO,
1357 keylen, key, vallen, val, set);
1360 if (KEY_IS(KEY_HSM_COPYTOOL_SEND)) {
1361 rc = mdc_hsm_copytool_send(vallen, val);
1368 int mdc_get_info(struct obd_export *exp, __u32 keylen, void *key,
1369 __u32 *vallen, void *val, struct lov_stripe_md *lsm)
1373 if (KEY_IS(KEY_MAX_EASIZE)) {
1374 int mdsize, *max_easize;
1376 if (*vallen != sizeof(int))
1378 mdsize = *(int*)val;
1379 if (mdsize > exp->exp_obd->u.cli.cl_max_mds_easize)
1380 exp->exp_obd->u.cli.cl_max_mds_easize = mdsize;
1382 *max_easize = exp->exp_obd->u.cli.cl_max_mds_easize;
1385 if (KEY_IS(KEY_CONN_DATA)) {
1386 struct obd_import *imp = class_exp2cliimp(exp);
1387 struct obd_connect_data *data = val;
1389 if (*vallen != sizeof(*data))
1392 *data = imp->imp_connect_data;
1396 rc = mdc_get_info_rpc(exp, keylen, key, *vallen, val);
1401 static int mdc_statfs(struct obd_device *obd, struct obd_statfs *osfs,
1402 __u64 max_age, __u32 flags)
1404 struct ptlrpc_request *req;
1405 struct obd_statfs *msfs;
1406 struct obd_import *imp = NULL;
1411 /*Since the request might also come from lprocfs, so we need
1412 *sync this with client_disconnect_export Bug15684*/
1413 cfs_down_read(&obd->u.cli.cl_sem);
1414 if (obd->u.cli.cl_import)
1415 imp = class_import_get(obd->u.cli.cl_import);
1416 cfs_up_read(&obd->u.cli.cl_sem);
1420 req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_STATFS,
1421 LUSTRE_MDS_VERSION, MDS_STATFS);
1423 GOTO(output, rc = -ENOMEM);
1425 ptlrpc_request_set_replen(req);
1427 if (flags & OBD_STATFS_NODELAY) {
1428 /* procfs requests not want stay in wait for avoid deadlock */
1429 req->rq_no_resend = 1;
1430 req->rq_no_delay = 1;
1433 rc = ptlrpc_queue_wait(req);
1435 /* check connection error first */
1436 if (imp->imp_connect_error)
1437 rc = imp->imp_connect_error;
1441 msfs = req_capsule_server_get(&req->rq_pill, &RMF_OBD_STATFS);
1443 GOTO(out, rc = -EPROTO);
1448 ptlrpc_req_finished(req);
1450 class_import_put(imp);
1454 static int mdc_pin(struct obd_export *exp, const struct lu_fid *fid,
1455 struct obd_capa *oc, struct obd_client_handle *handle,
1458 struct ptlrpc_request *req;
1459 struct mdt_body *body;
1463 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_PIN);
1467 mdc_set_capa_size(req, &RMF_CAPA1, oc);
1469 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_PIN);
1471 ptlrpc_request_free(req);
1475 mdc_pack_body(req, fid, oc, 0, 0, -1, flags);
1477 ptlrpc_request_set_replen(req);
1479 mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
1480 rc = ptlrpc_queue_wait(req);
1481 mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
1483 CERROR("Pin failed: %d\n", rc);
1487 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
1489 GOTO(err_out, rc = -EPROTO);
1491 handle->och_fh = body->handle;
1492 handle->och_magic = OBD_CLIENT_HANDLE_MAGIC;
1494 handle->och_mod = obd_mod_alloc();
1495 if (handle->och_mod == NULL) {
1496 DEBUG_REQ(D_ERROR, req, "can't allocate md_open_data");
1497 GOTO(err_out, rc = -ENOMEM);
1499 handle->och_mod->mod_open_req = req; /* will be dropped by unpin */
1504 ptlrpc_req_finished(req);
1508 static int mdc_unpin(struct obd_export *exp, struct obd_client_handle *handle,
1511 struct ptlrpc_request *req;
1512 struct mdt_body *body;
1516 req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), &RQF_MDS_UNPIN,
1517 LUSTRE_MDS_VERSION, MDS_UNPIN);
1521 body = req_capsule_client_get(&req->rq_pill, &RMF_MDT_BODY);
1522 body->handle = handle->och_fh;
1525 ptlrpc_request_set_replen(req);
1527 mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
1528 rc = ptlrpc_queue_wait(req);
1529 mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
1532 CERROR("Unpin failed: %d\n", rc);
1534 ptlrpc_req_finished(req);
1535 ptlrpc_req_finished(handle->och_mod->mod_open_req);
1537 obd_mod_put(handle->och_mod);
1541 int mdc_sync(struct obd_export *exp, const struct lu_fid *fid,
1542 struct obd_capa *oc, struct ptlrpc_request **request)
1544 struct ptlrpc_request *req;
1549 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_SYNC);
1553 mdc_set_capa_size(req, &RMF_CAPA1, oc);
1555 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_SYNC);
1557 ptlrpc_request_free(req);
1561 mdc_pack_body(req, fid, oc, 0, 0, -1, 0);
1563 ptlrpc_request_set_replen(req);
1565 rc = ptlrpc_queue_wait(req);
1567 ptlrpc_req_finished(req);
1573 static int mdc_import_event(struct obd_device *obd, struct obd_import *imp,
1574 enum obd_import_event event)
1578 LASSERT(imp->imp_obd == obd);
1581 case IMP_EVENT_DISCON: {
1583 /* XXX Pass event up to OBDs stack. used only for FLD now */
1584 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_DISCON, NULL);
1588 case IMP_EVENT_INACTIVE: {
1589 struct client_obd *cli = &obd->u.cli;
1591 * Flush current sequence to make client obtain new one
1592 * from server in case of disconnect/reconnect.
1593 * If range is already empty then no need to flush it.
1595 if (cli->cl_seq != NULL &&
1596 !range_is_exhausted(&cli->cl_seq->lcs_space)) {
1597 seq_client_flush(cli->cl_seq);
1600 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_INACTIVE, NULL);
1603 case IMP_EVENT_INVALIDATE: {
1604 struct ldlm_namespace *ns = obd->obd_namespace;
1606 ldlm_namespace_cleanup(ns, LDLM_FL_LOCAL_ONLY);
1610 case IMP_EVENT_ACTIVE: {
1611 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_ACTIVE, NULL);
1615 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_OCD, NULL);
1619 CERROR("Unknown import event %x\n", event);
1625 static int mdc_fid_init(struct obd_export *exp)
1627 struct client_obd *cli = &exp->exp_obd->u.cli;
1632 OBD_ALLOC_PTR(cli->cl_seq);
1633 if (cli->cl_seq == NULL)
1636 OBD_ALLOC(prefix, MAX_OBD_NAME + 5);
1638 GOTO(out_free_seq, rc = -ENOMEM);
1640 snprintf(prefix, MAX_OBD_NAME + 5, "srv-%s",
1641 exp->exp_obd->obd_name);
1643 /* Init client side sequence-manager */
1644 rc = seq_client_init(cli->cl_seq, exp,
1645 LUSTRE_SEQ_METADATA,
1647 OBD_FREE(prefix, MAX_OBD_NAME + 5);
1649 GOTO(out_free_seq, rc);
1653 OBD_FREE_PTR(cli->cl_seq);
1658 static int mdc_fid_fini(struct obd_export *exp)
1660 struct client_obd *cli = &exp->exp_obd->u.cli;
1663 if (cli->cl_seq != NULL) {
1664 seq_client_fini(cli->cl_seq);
1665 OBD_FREE_PTR(cli->cl_seq);
1672 int mdc_fid_alloc(struct obd_export *exp, struct lu_fid *fid,
1673 struct md_op_data *op_data)
1675 struct client_obd *cli = &exp->exp_obd->u.cli;
1676 struct lu_client_seq *seq = cli->cl_seq;
1678 RETURN(seq_client_alloc_fid(seq, fid));
1681 /* XXX This method is used only to clear current fid seq
1682 * once fld/mds insert failed */
1683 static int mdc_fid_delete(struct obd_export *exp, const struct lu_fid *fid)
1685 struct client_obd *cli = &exp->exp_obd->u.cli;
1687 seq_client_flush(cli->cl_seq);
1691 struct obd_uuid *mdc_get_uuid(struct obd_export *exp) {
1692 struct client_obd *cli = &exp->exp_obd->u.cli;
1693 return &cli->cl_target_uuid;
1696 static int mdc_setup(struct obd_device *obd, struct lustre_cfg *cfg)
1698 struct client_obd *cli = &obd->u.cli;
1699 struct lprocfs_static_vars lvars = { 0 };
1703 OBD_ALLOC(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
1704 if (!cli->cl_rpc_lock)
1706 mdc_init_rpc_lock(cli->cl_rpc_lock);
1710 OBD_ALLOC(cli->cl_setattr_lock, sizeof (*cli->cl_setattr_lock));
1711 if (!cli->cl_setattr_lock)
1712 GOTO(err_rpc_lock, rc = -ENOMEM);
1713 mdc_init_rpc_lock(cli->cl_setattr_lock);
1715 OBD_ALLOC(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
1716 if (!cli->cl_close_lock)
1717 GOTO(err_setattr_lock, rc = -ENOMEM);
1718 mdc_init_rpc_lock(cli->cl_close_lock);
1720 rc = client_obd_setup(obd, cfg);
1722 GOTO(err_close_lock, rc);
1723 lprocfs_mdc_init_vars(&lvars);
1724 lprocfs_obd_setup(obd, lvars.obd_vars);
1725 sptlrpc_lprocfs_cliobd_attach(obd);
1726 ptlrpc_lprocfs_register_obd(obd);
1728 rc = obd_llog_init(obd, &obd->obd_olg, obd, NULL);
1731 CERROR("failed to setup llogging subsystems\n");
1735 libcfs_klnl_start(LNL_TRANSPORT_HSM);
1736 libcfs_klnl_start(LNL_TRANSPORT_CHANGELOG);
1741 OBD_FREE(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
1743 OBD_FREE(cli->cl_setattr_lock, sizeof (*cli->cl_setattr_lock));
1745 OBD_FREE(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
1750 /* Initialize the default and maximum LOV EA and cookie sizes. This allows
1751 * us to make MDS RPCs with large enough reply buffers to hold the
1752 * maximum-sized (= maximum striped) EA and cookie without having to
1753 * calculate this (via a call into the LOV + OSCs) each time we make an RPC. */
1754 static int mdc_init_ea_size(struct obd_export *exp, int easize,
1755 int def_easize, int cookiesize)
1757 struct obd_device *obd = exp->exp_obd;
1758 struct client_obd *cli = &obd->u.cli;
1761 if (cli->cl_max_mds_easize < easize)
1762 cli->cl_max_mds_easize = easize;
1764 if (cli->cl_default_mds_easize < def_easize)
1765 cli->cl_default_mds_easize = def_easize;
1767 if (cli->cl_max_mds_cookiesize < cookiesize)
1768 cli->cl_max_mds_cookiesize = cookiesize;
1773 static int mdc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
1779 case OBD_CLEANUP_EARLY:
1780 case OBD_CLEANUP_EXPORTS:
1781 /* If we set up but never connected, the
1782 client import will not have been cleaned. */
1783 if (obd->u.cli.cl_import) {
1784 struct obd_import *imp;
1785 cfs_down_write(&obd->u.cli.cl_sem);
1786 imp = obd->u.cli.cl_import;
1787 CERROR("client import never connected\n");
1788 ptlrpc_invalidate_import(imp);
1789 class_destroy_import(imp);
1790 cfs_up_write(&obd->u.cli.cl_sem);
1791 obd->u.cli.cl_import = NULL;
1793 rc = obd_llog_finish(obd, 0);
1795 CERROR("failed to cleanup llogging subsystems\n");
1801 static int mdc_cleanup(struct obd_device *obd)
1803 struct client_obd *cli = &obd->u.cli;
1805 libcfs_klnl_stop(LNL_TRANSPORT_HSM, LNL_GRP_HSM);
1806 libcfs_klnl_stop(LNL_TRANSPORT_CHANGELOG, 0);
1808 OBD_FREE(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
1809 OBD_FREE(cli->cl_setattr_lock, sizeof (*cli->cl_setattr_lock));
1810 OBD_FREE(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
1812 ptlrpc_lprocfs_unregister_obd(obd);
1813 lprocfs_obd_cleanup(obd);
1816 return client_obd_cleanup(obd);
1820 static int mdc_llog_init(struct obd_device *obd, struct obd_llog_group *olg,
1821 struct obd_device *tgt, int *index)
1823 struct llog_ctxt *ctxt;
1827 LASSERT(olg == &obd->obd_olg);
1829 rc = llog_setup(obd, olg, LLOG_LOVEA_REPL_CTXT, tgt, 0, NULL,
1834 ctxt = llog_get_context(obd, LLOG_LOVEA_REPL_CTXT);
1835 llog_initiator_connect(ctxt);
1836 llog_ctxt_put(ctxt);
1838 rc = llog_setup(obd, olg, LLOG_CHANGELOG_REPL_CTXT, tgt, 0, NULL,
1841 ctxt = llog_group_get_ctxt(olg, LLOG_CHANGELOG_REPL_CTXT);
1842 llog_initiator_connect(ctxt);
1843 llog_ctxt_put(ctxt);
1849 static int mdc_llog_finish(struct obd_device *obd, int count)
1851 struct llog_ctxt *ctxt;
1855 ctxt = llog_get_context(obd, LLOG_LOVEA_REPL_CTXT);
1857 rc = llog_cleanup(ctxt);
1859 ctxt = llog_get_context(obd, LLOG_CHANGELOG_REPL_CTXT);
1861 rc = llog_cleanup(ctxt);
1866 static int mdc_process_config(struct obd_device *obd, obd_count len, void *buf)
1868 struct lustre_cfg *lcfg = buf;
1869 struct lprocfs_static_vars lvars = { 0 };
1872 lprocfs_mdc_init_vars(&lvars);
1873 switch (lcfg->lcfg_command) {
1875 rc = class_process_proc_param(PARAM_MDC, lvars.obd_vars,
1885 /* get remote permission for current user on fid */
1886 int mdc_get_remote_perm(struct obd_export *exp, const struct lu_fid *fid,
1887 struct obd_capa *oc, __u32 suppgid,
1888 struct ptlrpc_request **request)
1890 struct ptlrpc_request *req;
1894 LASSERT(client_is_remote(exp));
1897 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_GETATTR);
1901 mdc_set_capa_size(req, &RMF_CAPA1, oc);
1903 rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR);
1905 ptlrpc_request_free(req);
1909 mdc_pack_body(req, fid, oc, OBD_MD_FLRMTPERM, 0, suppgid, 0);
1911 req_capsule_set_size(&req->rq_pill, &RMF_ACL, RCL_SERVER,
1912 sizeof(struct mdt_remote_perm));
1914 ptlrpc_request_set_replen(req);
1916 rc = ptlrpc_queue_wait(req);
1918 ptlrpc_req_finished(req);
1924 static int mdc_interpret_renew_capa(const struct lu_env *env,
1925 struct ptlrpc_request *req, void *unused,
1928 struct obd_capa *oc = req->rq_async_args.pointer_arg[0];
1929 renew_capa_cb_t cb = req->rq_async_args.pointer_arg[1];
1930 struct mdt_body *body = NULL;
1931 struct lustre_capa *capa;
1935 GOTO(out, capa = ERR_PTR(status));
1937 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
1939 GOTO(out, capa = ERR_PTR(-EFAULT));
1941 if ((body->valid & OBD_MD_FLOSSCAPA) == 0)
1942 GOTO(out, capa = ERR_PTR(-ENOENT));
1944 capa = req_capsule_server_get(&req->rq_pill, &RMF_CAPA2);
1946 GOTO(out, capa = ERR_PTR(-EFAULT));
1953 static int mdc_renew_capa(struct obd_export *exp, struct obd_capa *oc,
1956 struct ptlrpc_request *req;
1959 req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), &RQF_MDS_GETATTR,
1960 LUSTRE_MDS_VERSION, MDS_GETATTR);
1964 /* NB, OBD_MD_FLOSSCAPA is set here, but it doesn't necessarily mean the
1965 * capa to renew is oss capa.
1967 mdc_pack_body(req, &oc->c_capa.lc_fid, oc, OBD_MD_FLOSSCAPA, 0, -1, 0);
1968 ptlrpc_request_set_replen(req);
1970 req->rq_async_args.pointer_arg[0] = oc;
1971 req->rq_async_args.pointer_arg[1] = cb;
1972 req->rq_interpret_reply = mdc_interpret_renew_capa;
1973 ptlrpcd_add_req(req, PSCOPE_OTHER);
1977 static int mdc_connect(const struct lu_env *env,
1978 struct obd_export **exp,
1979 struct obd_device *obd, struct obd_uuid *cluuid,
1980 struct obd_connect_data *data,
1983 struct obd_import *imp = obd->u.cli.cl_import;
1985 /* mds-mds import features */
1986 if (data && (data->ocd_connect_flags & OBD_CONNECT_MDS_MDS)) {
1987 cfs_spin_lock(&imp->imp_lock);
1988 imp->imp_server_timeout = 1;
1989 cfs_spin_unlock(&imp->imp_lock);
1990 imp->imp_client->cli_request_portal = MDS_MDS_PORTAL;
1991 CDEBUG(D_OTHER, "%s: Set 'mds' portal and timeout\n",
1995 return client_connect_import(env, exp, obd, cluuid, data, NULL);
1998 struct obd_ops mdc_obd_ops = {
1999 .o_owner = THIS_MODULE,
2000 .o_setup = mdc_setup,
2001 .o_precleanup = mdc_precleanup,
2002 .o_cleanup = mdc_cleanup,
2003 .o_add_conn = client_import_add_conn,
2004 .o_del_conn = client_import_del_conn,
2005 .o_connect = mdc_connect,
2006 .o_disconnect = client_disconnect_export,
2007 .o_iocontrol = mdc_iocontrol,
2008 .o_set_info_async = mdc_set_info_async,
2009 .o_statfs = mdc_statfs,
2011 .o_unpin = mdc_unpin,
2012 .o_fid_init = mdc_fid_init,
2013 .o_fid_fini = mdc_fid_fini,
2014 .o_fid_alloc = mdc_fid_alloc,
2015 .o_fid_delete = mdc_fid_delete,
2016 .o_import_event = mdc_import_event,
2017 .o_llog_init = mdc_llog_init,
2018 .o_llog_finish = mdc_llog_finish,
2019 .o_get_info = mdc_get_info,
2020 .o_process_config = mdc_process_config,
2021 .o_get_uuid = mdc_get_uuid,
2024 struct md_ops mdc_md_ops = {
2025 .m_getstatus = mdc_getstatus,
2026 .m_change_cbdata = mdc_change_cbdata,
2027 .m_close = mdc_close,
2028 .m_create = mdc_create,
2029 .m_done_writing = mdc_done_writing,
2030 .m_enqueue = mdc_enqueue,
2031 .m_getattr = mdc_getattr,
2032 .m_getattr_name = mdc_getattr_name,
2033 .m_intent_lock = mdc_intent_lock,
2035 .m_is_subdir = mdc_is_subdir,
2036 .m_rename = mdc_rename,
2037 .m_setattr = mdc_setattr,
2038 .m_setxattr = mdc_setxattr,
2039 .m_getxattr = mdc_getxattr,
2041 .m_readpage = mdc_readpage,
2042 .m_unlink = mdc_unlink,
2043 .m_cancel_unused = mdc_cancel_unused,
2044 .m_init_ea_size = mdc_init_ea_size,
2045 .m_set_lock_data = mdc_set_lock_data,
2046 .m_lock_match = mdc_lock_match,
2047 .m_get_lustre_md = mdc_get_lustre_md,
2048 .m_free_lustre_md = mdc_free_lustre_md,
2049 .m_set_open_replay_data = mdc_set_open_replay_data,
2050 .m_clear_open_replay_data = mdc_clear_open_replay_data,
2051 .m_renew_capa = mdc_renew_capa,
2052 .m_unpack_capa = mdc_unpack_capa,
2053 .m_get_remote_perm = mdc_get_remote_perm,
2054 .m_intent_getattr_async = mdc_intent_getattr_async,
2055 .m_revalidate_lock = mdc_revalidate_lock
2058 int __init mdc_init(void)
2061 struct lprocfs_static_vars lvars = { 0 };
2062 lprocfs_mdc_init_vars(&lvars);
2064 cfs_request_module("lquota");
2065 quota_interface = PORTAL_SYMBOL_GET(mdc_quota_interface);
2066 init_obd_quota_ops(quota_interface, &mdc_obd_ops);
2068 rc = class_register_type(&mdc_obd_ops, &mdc_md_ops, lvars.module_vars,
2069 LUSTRE_MDC_NAME, NULL);
2070 if (rc && quota_interface)
2071 PORTAL_SYMBOL_PUT(mdc_quota_interface);
2077 static void /*__exit*/ mdc_exit(void)
2079 if (quota_interface)
2080 PORTAL_SYMBOL_PUT(mdc_quota_interface);
2082 class_unregister_type(LUSTRE_MDC_NAME);
2085 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
2086 MODULE_DESCRIPTION("Lustre Metadata Client");
2087 MODULE_LICENSE("GPL");
2089 module_init(mdc_init);
2090 module_exit(mdc_exit);