1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * linux/mdt/mdt_reint.c
5 * Lustre Metadata Target (mdt) reintegration routines
7 * Copyright (C) 2002-2006 Cluster File Systems, Inc.
8 * Author: Peter Braam <braam@clusterfs.com>
9 * Author: Andreas Dilger <adilger@clusterfs.com>
10 * Author: Phil Schwan <phil@clusterfs.com>
11 * Author: Huang Hua <huanghua@clusterfs.com>
13 * This file is part of the Lustre file system, http://www.lustre.org
14 * Lustre is a trademark of Cluster File Systems, Inc.
16 * You may have signed or agreed to another license before downloading
17 * this software. If so, you are bound by the terms and conditions
18 * of that agreement, and the following does not apply to you. See the
19 * LICENSE file included with this distribution for more information.
21 * If you did not agree to a different license, then this copy of Lustre
22 * is open source software; you can redistribute it and/or modify it
23 * under the terms of version 2 of the GNU General Public License as
24 * published by the Free Software Foundation.
26 * In either case, Lustre is distributed in the hope that it will be
27 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
28 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
29 * license text for more details.
33 # define EXPORT_SYMTAB
35 #define DEBUG_SUBSYSTEM S_MDS
37 #include "mdt_internal.h"
40 static int mdt_md_create(struct mdt_thread_info *info)
42 struct mdt_device *mdt = info->mti_mdt;
43 struct mdt_object *parent;
44 struct mdt_object *child;
45 struct mdt_lock_handle *lh;
46 struct mdt_body *repbody;
47 struct md_attr *ma = &info->mti_attr;
48 struct mdt_reint_record *rr = &info->mti_rr;
52 repbody = req_capsule_server_get(&info->mti_pill, &RMF_MDT_BODY);
54 lh = &info->mti_lh[MDT_LH_PARENT];
55 lh->mlh_mode = LCK_EX;
57 parent = mdt_object_find_lock(info, rr->rr_fid1,
58 lh, MDS_INODELOCK_UPDATE);
60 RETURN(PTR_ERR(parent));
62 child = mdt_object_find(info->mti_ctxt, mdt, rr->rr_fid2);
64 struct md_object *next = mdt_object_child(parent);
66 ma->ma_need = MA_INODE;
67 mdt_fail_write(info->mti_ctxt, info->mti_mdt->mdt_bottom,
68 OBD_FAIL_MDS_REINT_CREATE_WRITE);
70 rc = mdo_create(info->mti_ctxt, next, rr->rr_name,
71 mdt_object_child(child), &info->mti_spec,
74 /* return fid & attr to client. */
75 if (ma->ma_valid & MA_INODE)
76 mdt_pack_attr2body(repbody, &ma->ma_attr,
77 mdt_object_fid(child));
79 mdt_object_put(info->mti_ctxt, child);
82 mdt_object_unlock_put(info, parent, lh, rc);
86 /* partial request to create object only */
87 static int mdt_md_mkobj(struct mdt_thread_info *info)
89 struct mdt_device *mdt = info->mti_mdt;
91 struct mdt_body *repbody;
92 struct md_attr *ma = &info->mti_attr;
96 repbody = req_capsule_server_get(&info->mti_pill, &RMF_MDT_BODY);
98 o = mdt_object_find(info->mti_ctxt, mdt, info->mti_rr.rr_fid2);
100 struct md_object *next = mdt_object_child(o);
102 ma->ma_need = MA_INODE;
103 rc = mo_object_create(info->mti_ctxt, next,
104 &info->mti_spec, ma);
106 /* return fid & attr to client. */
107 if (ma->ma_valid & MA_INODE)
108 mdt_pack_attr2body(repbody, &ma->ma_attr,
111 mdt_object_put(info->mti_ctxt, o);
118 /* In the raw-setattr case, we lock the child inode.
119 * In the write-back case or if being called from open,
120 * the client holds a lock already.
121 * We use the ATTR_FROM_OPEN (translated into MRF_SETATTR_LOCKED by
122 * mdt_setattr_unpack()) flag to tell these cases apart. */
123 int mdt_attr_set(struct mdt_thread_info *info, struct mdt_object *mo, int flags)
125 struct md_attr *ma = &info->mti_attr;
126 struct mdt_lock_handle *lh;
132 som_update = (info->mti_epoch->flags & MF_SOM_CHANGE);
134 /* Try to avoid object_lock if another epoch has been started
136 if (som_update && (info->mti_epoch->ioepoch != mo->mot_ioepoch))
139 lh = &info->mti_lh[MDT_LH_PARENT];
140 lh->mlh_mode = LCK_EX;
142 if (!(flags & MRF_SETATTR_LOCKED)) {
143 __u64 lockpart = MDS_INODELOCK_UPDATE;
144 if (ma->ma_attr.la_valid & (LA_MODE|LA_UID|LA_GID))
145 lockpart |= MDS_INODELOCK_LOOKUP;
147 rc = mdt_object_lock(info, mo, lh, lockpart);
152 /* Setattrs are syncronized through dlm lock taken above. If another
153 * epoch started, its attributes may be already flushed on disk,
155 if (som_update && (info->mti_epoch->ioepoch != mo->mot_ioepoch))
158 if (lu_object_assert_not_exists(&mo->mot_obj.mo_lu))
159 GOTO(out, rc = -ENOENT);
161 /* all attrs are packed into mti_attr in unpack_setattr */
162 mdt_fail_write(info->mti_ctxt, info->mti_mdt->mdt_bottom,
163 OBD_FAIL_MDS_REINT_SETATTR_WRITE);
165 /* all attrs are packed into mti_attr in unpack_setattr */
166 rc = mo_attr_set(info->mti_ctxt, mdt_object_child(mo), ma);
170 /* Re-enable SIZEONMDS. */
172 CDEBUG(D_INODE, "Closing epoch "LPU64" on "DFID". Count %d\n",
173 mo->mot_ioepoch, PFID(mdt_object_fid(mo)),
176 mdt_sizeonmds_enable(info, mo);
181 mdt_object_unlock(info, mo, lh, rc);
185 static int mdt_reint_setattr(struct mdt_thread_info *info,
186 struct mdt_lock_handle *lhc)
188 struct md_attr *ma = &info->mti_attr;
189 struct mdt_reint_record *rr = &info->mti_rr;
190 struct ptlrpc_request *req = mdt_info_req(info);
191 struct mdt_export_data *med = &req->rq_export->exp_mdt_data;
192 struct mdt_file_data *mfd;
193 struct mdt_object *mo;
194 struct md_object *next;
195 struct mdt_body *repbody;
200 DEBUG_REQ(D_INODE, req, "setattr "DFID" %x", PFID(rr->rr_fid1),
201 (unsigned int)ma->ma_attr.la_valid);
203 repbody = req_capsule_server_get(&info->mti_pill, &RMF_MDT_BODY);
204 mo = mdt_object_find(info->mti_ctxt, info->mti_mdt, rr->rr_fid1);
206 RETURN(rc = PTR_ERR(mo));
208 if (info->mti_epoch && (info->mti_epoch->flags & MF_EPOCH_OPEN)) {
210 rc = mdt_write_get(info->mti_mdt, mo);
216 GOTO(out, rc = -ENOMEM);
218 /* FIXME: in recovery, need to pass old epoch here */
219 mdt_epoch_open(info, mo, 0);
220 repbody->ioepoch = mo->mot_ioepoch;
222 mdt_object_get(info->mti_ctxt, mo);
223 mfd->mfd_mode = FMODE_EPOCHLCK;
224 mfd->mfd_object = mo;
225 mfd->mfd_xid = req->rq_xid;
227 spin_lock(&med->med_open_lock);
228 list_add(&mfd->mfd_list, &med->med_open_head);
229 spin_unlock(&med->med_open_lock);
230 repbody->handle.cookie = mfd->mfd_handle.h_cookie;
233 rc = mdt_attr_set(info, mo, rr->rr_flags);
237 if (info->mti_epoch && (info->mti_epoch->flags & MF_SOM_CHANGE)) {
238 LASSERT(info->mti_epoch);
240 /* Size-on-MDS Update. Find and free mfd. */
241 spin_lock(&med->med_open_lock);
242 mfd = mdt_handle2mfd(&(info->mti_epoch->handle));
244 spin_unlock(&med->med_open_lock);
245 CDEBUG(D_INODE, "no handle for file close: "
246 "fid = "DFID": cookie = "LPX64"\n",
247 PFID(info->mti_rr.rr_fid1),
248 info->mti_epoch->handle.cookie);
249 GOTO(out, rc = -ESTALE);
252 LASSERT(mfd->mfd_mode == FMODE_SOM);
253 LASSERT(ma->ma_attr.la_valid & LA_SIZE);
254 LASSERT(!(info->mti_epoch->flags & MF_EPOCH_CLOSE));
256 class_handle_unhash(&mfd->mfd_handle);
257 list_del_init(&mfd->mfd_list);
258 spin_unlock(&med->med_open_lock);
259 mdt_mfd_close(info, mfd);
262 ma->ma_need = MA_INODE;
263 next = mdt_object_child(mo);
264 rc = mo_attr_get(info->mti_ctxt, next, ma);
268 mdt_pack_attr2body(repbody, &ma->ma_attr, mdt_object_fid(mo));
271 mdt_object_put(info->mti_ctxt, mo);
275 static int mdt_reint_create(struct mdt_thread_info *info,
276 struct mdt_lock_handle *lhc)
281 if (MDT_FAIL_CHECK(OBD_FAIL_MDS_REINT_CREATE))
284 switch (info->mti_attr.ma_attr.la_mode & S_IFMT) {
287 if (strlen(info->mti_rr.rr_name) == 0) {
288 rc = mdt_md_mkobj(info);
297 /* special file should stay on the same node as parent */
298 LASSERT(strlen(info->mti_rr.rr_name) > 0);
299 rc = mdt_md_create(info);
309 static int mdt_reint_unlink(struct mdt_thread_info *info,
310 struct mdt_lock_handle *lhc)
312 struct mdt_reint_record *rr = &info->mti_rr;
313 struct ptlrpc_request *req = mdt_info_req(info);
314 struct md_attr *ma = &info->mti_attr;
315 struct lu_fid *child_fid = &info->mti_tmp_fid1;
316 struct mdt_object *mp;
317 struct mdt_object *mc;
318 struct mdt_lock_handle *parent_lh;
319 struct mdt_lock_handle *child_lh;
323 DEBUG_REQ(D_INODE, req, "unlink "DFID"/%s\n", PFID(rr->rr_fid1),
326 if (MDT_FAIL_CHECK(OBD_FAIL_MDS_REINT_UNLINK))
327 GOTO(out, rc = -ENOENT);
329 /* step 1: lock the parent */
330 parent_lh = &info->mti_lh[MDT_LH_PARENT];
331 parent_lh->mlh_mode = LCK_EX;
332 mp = mdt_object_find_lock(info, rr->rr_fid1, parent_lh,
333 MDS_INODELOCK_UPDATE);
335 GOTO(out, rc = PTR_ERR(mp));
337 ma->ma_lmm = req_capsule_server_get(&info->mti_pill, &RMF_MDT_MD);
338 ma->ma_lmm_size = req_capsule_get_size(&info->mti_pill,
339 &RMF_MDT_MD, RCL_SERVER);
341 ma->ma_cookie = req_capsule_server_get(&info->mti_pill,
343 ma->ma_cookie_size = req_capsule_get_size(&info->mti_pill,
347 if (!ma->ma_lmm || !ma->ma_cookie)
348 GOTO(out_unlock_parent, rc = -EINVAL);
350 if (strlen(rr->rr_name) == 0) {
351 /* remote partial operation */
352 rc = mo_ref_del(info->mti_ctxt, mdt_object_child(mp), ma);
353 GOTO(out_unlock_parent, rc);
356 /* step 2: find & lock the child */
357 rc = mdo_lookup(info->mti_ctxt, mdt_object_child(mp),
358 rr->rr_name, child_fid);
360 GOTO(out_unlock_parent, rc);
362 /* we will lock the child regardless it is local or remote. No harm. */
363 mc = mdt_object_find(info->mti_ctxt, info->mti_mdt, child_fid);
365 GOTO(out_unlock_parent, rc = PTR_ERR(mc));
366 child_lh = &info->mti_lh[MDT_LH_CHILD];
367 child_lh->mlh_mode = LCK_EX;
368 rc = mdt_object_cr_lock(info, mc, child_lh, MDS_INODELOCK_FULL);
370 GOTO(out_put_child, rc);
372 mdt_fail_write(info->mti_ctxt, info->mti_mdt->mdt_bottom,
373 OBD_FAIL_MDS_REINT_UNLINK_WRITE);
376 * Now we can only make sure we need MA_INODE, in mdd layer, will check
377 * whether need MA_LOV and MA_COOKIE.
379 ma->ma_need = MA_INODE;
380 rc = mdo_unlink(info->mti_ctxt, mdt_object_child(mp),
381 mdt_object_child(mc), rr->rr_name, ma);
383 GOTO(out_unlock_child, rc);
385 mdt_handle_last_unlink(info, mc, ma);
387 GOTO(out_unlock_child, rc);
389 mdt_object_unlock(info, mc, child_lh, rc);
391 mdt_object_put(info->mti_ctxt, mc);
393 mdt_object_unlock_put(info, mp, parent_lh, rc);
395 mdt_shrink_reply(info, REPLY_REC_OFF + 1);
399 static int mdt_reint_link(struct mdt_thread_info *info,
400 struct mdt_lock_handle *lhc)
402 struct mdt_reint_record *rr = &info->mti_rr;
403 struct ptlrpc_request *req = mdt_info_req(info);
404 struct md_attr *ma = &info->mti_attr;
405 struct mdt_object *ms;
406 struct mdt_object *mp;
407 struct mdt_lock_handle *lhs;
408 struct mdt_lock_handle *lhp;
413 DEBUG_REQ(D_INODE, req, "link original "DFID" to "DFID" %s",
414 PFID(rr->rr_fid1), PFID(rr->rr_fid2), rr->rr_name);
416 if (MDT_FAIL_CHECK(OBD_FAIL_MDS_REINT_LINK))
419 /* step 1: lock the source */
420 lhs = &info->mti_lh[MDT_LH_PARENT];
421 lhs->mlh_mode = LCK_EX;
422 ms = mdt_object_find_lock(info, rr->rr_fid1, lhs,
423 MDS_INODELOCK_UPDATE);
427 if (strlen(rr->rr_name) == 0) {
428 /* remote partial operation */
429 rc = mo_ref_add(info->mti_ctxt, mdt_object_child(ms));
430 GOTO(out_unlock_source, rc);
432 /*step 2: find & lock the target parent dir*/
433 lhp = &info->mti_lh[MDT_LH_CHILD];
434 lhp->mlh_mode = LCK_EX;
435 mp = mdt_object_find_lock(info, rr->rr_fid2, lhp,
436 MDS_INODELOCK_UPDATE);
438 GOTO(out_unlock_source, rc = PTR_ERR(mp));
440 /* step 4: link it */
442 mdt_fail_write(info->mti_ctxt, info->mti_mdt->mdt_bottom,
443 OBD_FAIL_MDS_REINT_LINK_WRITE);
445 rc = mdo_link(info->mti_ctxt, mdt_object_child(mp),
446 mdt_object_child(ms), rr->rr_name, ma);
447 GOTO(out_unlock_target, rc);
450 mdt_object_unlock_put(info, mp, lhp, rc);
452 mdt_object_unlock_put(info, ms, lhs, rc);
456 /* partial operation for rename */
457 static int mdt_reint_rename_tgt(struct mdt_thread_info *info)
459 struct mdt_reint_record *rr = &info->mti_rr;
460 struct ptlrpc_request *req = mdt_info_req(info);
461 struct md_attr *ma = &info->mti_attr;
462 struct mdt_object *mtgtdir;
463 struct mdt_object *mtgt = NULL;
464 struct mdt_lock_handle *lh_tgtdir;
465 struct mdt_lock_handle *lh_tgt;
466 struct lu_fid *tgt_fid = &info->mti_tmp_fid1;
471 DEBUG_REQ(D_INODE, req, "rename_tgt "DFID" to "DFID" %s",
473 PFID(rr->rr_fid1), rr->rr_tgt);
475 /* step 1: lookup & lock the tgt dir */
476 lh_tgt = &info->mti_lh[MDT_LH_CHILD];
477 lh_tgtdir = &info->mti_lh[MDT_LH_PARENT];
478 lh_tgtdir->mlh_mode = LCK_EX;
479 mtgtdir = mdt_object_find_lock(info, rr->rr_fid1, lh_tgtdir,
480 MDS_INODELOCK_UPDATE);
482 GOTO(out, rc = PTR_ERR(mtgtdir));
484 /*step 2: find & lock the target object if exists*/
485 rc = mdo_lookup(info->mti_ctxt, mdt_object_child(mtgtdir),
486 rr->rr_tgt, tgt_fid);
487 if (rc != 0 && rc != -ENOENT) {
488 GOTO(out_unlock_tgtdir, rc);
489 } else if (rc == 0) {
490 lh_tgt->mlh_mode = LCK_EX;
492 mtgt = mdt_object_find_lock(info, tgt_fid, lh_tgt,
493 MDS_INODELOCK_LOOKUP);
495 GOTO(out_unlock_tgtdir, rc = PTR_ERR(mtgt));
497 rc = mdo_rename_tgt(info->mti_ctxt, mdt_object_child(mtgtdir),
498 mdt_object_child(mtgt),
499 rr->rr_fid2, rr->rr_tgt, ma);
500 } else /* -ENOENT */ {
501 rc = mdo_name_insert(info->mti_ctxt, mdt_object_child(mtgtdir),
502 rr->rr_tgt, rr->rr_fid2,
503 S_ISDIR(ma->ma_attr.la_mode));
506 /* handle last link of tgt object */
508 mdt_handle_last_unlink(info, mtgt, ma);
513 mdt_object_unlock_put(info, mtgt, lh_tgt, rc);
516 mdt_object_unlock_put(info, mtgtdir, lh_tgtdir, rc);
518 mdt_shrink_reply(info, REPLY_REC_OFF + 1);
522 static int mdt_rename_lock(struct mdt_thread_info *info,
523 struct lustre_handle *lh)
525 ldlm_policy_data_t policy = { .l_inodebits = { MDS_INODELOCK_UPDATE } };
526 struct ldlm_namespace *ns = info->mti_mdt->mdt_namespace;
527 int flags = LDLM_FL_ATOMIC_CB;
528 struct ldlm_res_id res_id;
533 ls = info->mti_mdt->mdt_md_dev.md_lu_dev.ld_site;
534 fid_build_res_name(&LUSTRE_BFL_FID, &res_id);
536 if (ls->ls_control_exp == NULL) {
538 * Current node is controller, that is mdt0 where we should take
541 rc = ldlm_cli_enqueue_local(ns, res_id, LDLM_IBITS, &policy,
542 LCK_EX, &flags, ldlm_blocking_ast,
543 ldlm_completion_ast, NULL, NULL, 0,
547 * This is the case mdt0 is remote node, issue DLM lock like
550 rc = ldlm_cli_enqueue(ls->ls_control_exp, NULL, res_id,
551 LDLM_IBITS, &policy, LCK_EX, &flags,
552 ldlm_blocking_ast, ldlm_completion_ast,
553 NULL, NULL, NULL, 0, NULL, lh, 0);
559 static void mdt_rename_unlock(struct lustre_handle *lh)
562 ldlm_lock_decref(lh, LCK_EX);
567 * This is is_subdir() variant, it is CMD is cmm forwards it to correct
568 * target. Source should not be ancestor of target dir. May be other rename
569 * checks can be moved here later.
571 static int mdt_rename_check(struct mdt_thread_info *info, struct lu_fid *fid)
573 struct mdt_reint_record *rr = &info->mti_rr;
574 struct lu_fid dst_fid = *rr->rr_fid2;
575 struct mdt_object *dst;
580 dst = mdt_object_find(info->mti_ctxt, info->mti_mdt, &dst_fid);
582 rc = mdo_is_subdir(info->mti_ctxt, mdt_object_child(dst),
584 mdt_object_put(info->mti_ctxt, dst);
586 CERROR("Error while doing mdo_is_subdir(), rc %d\n",
588 } else if (rc == 1) {
594 } while (rc == EREMOTE);
599 static int mdt_reint_rename(struct mdt_thread_info *info,
600 struct mdt_lock_handle *lhc)
602 struct mdt_reint_record *rr = &info->mti_rr;
603 struct req_capsule *pill = &info->mti_pill;
604 struct ptlrpc_request *req = mdt_info_req(info);
605 struct md_attr *ma = &info->mti_attr;
606 struct mdt_object *msrcdir;
607 struct mdt_object *mtgtdir;
608 struct mdt_object *mold;
609 struct mdt_object *mnew = NULL;
610 struct mdt_lock_handle *lh_srcdirp;
611 struct mdt_lock_handle *lh_tgtdirp;
612 struct mdt_lock_handle *lh_oldp;
613 struct mdt_lock_handle *lh_newp;
614 struct lu_fid *old_fid = &info->mti_tmp_fid1;
615 struct lu_fid *new_fid = &info->mti_tmp_fid2;
616 struct lustre_handle rename_lh = { 0 };
621 DEBUG_REQ(D_INODE, req, "rename "DFID"/%s to "DFID"/%s",
622 PFID(rr->rr_fid1), rr->rr_name,
623 PFID(rr->rr_fid2), rr->rr_tgt);
625 rc = req_capsule_get_size(pill, &RMF_NAME, RCL_CLIENT);
627 /* if (rr->rr_name[0] == 0) {*/
628 rc = mdt_reint_rename_tgt(info);
632 rc = mdt_rename_lock(info, &rename_lh);
634 CERROR("can't lock FS for rename, rc %d\n", rc);
638 lh_newp = &info->mti_lh[MDT_LH_NEW];
640 /* step 1: lock the source dir */
641 lh_srcdirp = &info->mti_lh[MDT_LH_PARENT];
642 lh_srcdirp->mlh_mode = LCK_EX;
643 msrcdir = mdt_object_find_lock(info, rr->rr_fid1, lh_srcdirp,
644 MDS_INODELOCK_UPDATE);
646 GOTO(out, rc = PTR_ERR(msrcdir));
648 /*step 2: find & lock the target dir*/
649 lh_tgtdirp = &info->mti_lh[MDT_LH_CHILD];
650 lh_tgtdirp->mlh_mode = LCK_EX;
651 if (lu_fid_eq(rr->rr_fid1, rr->rr_fid2)) {
652 mdt_object_get(info->mti_ctxt, msrcdir);
655 mtgtdir = mdt_object_find(info->mti_ctxt,
656 info->mti_mdt, rr->rr_fid2);
658 GOTO(out_unlock_source, rc = PTR_ERR(mtgtdir));
660 rc = mdt_object_cr_lock(info, mtgtdir, lh_tgtdirp,
661 MDS_INODELOCK_UPDATE);
663 mdt_object_put(info->mti_ctxt, mtgtdir);
664 GOTO(out_unlock_source, rc);
669 /*step 3: find & lock the old object*/
670 rc = mdo_lookup(info->mti_ctxt, mdt_object_child(msrcdir),
671 rr->rr_name, old_fid);
673 GOTO(out_unlock_target, rc);
675 if (lu_fid_eq(old_fid, rr->rr_fid1) || lu_fid_eq(old_fid, rr->rr_fid2))
676 GOTO(out_unlock_target, rc = -EINVAL);
678 lh_oldp = &info->mti_lh[MDT_LH_OLD];
679 lh_oldp->mlh_mode = LCK_EX;
680 mold = mdt_object_find_lock(info, old_fid, lh_oldp,
681 MDS_INODELOCK_LOOKUP);
683 GOTO(out_unlock_target, rc = PTR_ERR(mold));
685 /*step 4: find & lock the new object*/
686 /* new target object may not exist now */
687 rc = mdo_lookup(info->mti_ctxt, mdt_object_child(mtgtdir),
688 rr->rr_tgt, new_fid);
690 /* the new_fid should have been filled at this moment*/
691 if (lu_fid_eq(old_fid, new_fid))
692 GOTO(out_unlock_old, rc);
694 if (lu_fid_eq(new_fid, rr->rr_fid1) ||
695 lu_fid_eq(new_fid, rr->rr_fid2))
696 GOTO(out_unlock_old, rc = -EINVAL);
698 lh_newp->mlh_mode = LCK_EX;
699 mnew = mdt_object_find(info->mti_ctxt, info->mti_mdt, new_fid);
701 GOTO(out_unlock_old, rc = PTR_ERR(mnew));
703 rc = mdt_object_cr_lock(info, mnew, lh_newp,
706 mdt_object_put(info->mti_ctxt, mnew);
707 GOTO(out_unlock_old, rc);
709 } else if (rc != -EREMOTE && rc != -ENOENT)
710 GOTO(out_unlock_old, rc);
712 /* step 5: dome some checking ...*/
713 /* step 6: rename it */
714 ma->ma_lmm = req_capsule_server_get(&info->mti_pill, &RMF_MDT_MD);
715 ma->ma_lmm_size = req_capsule_get_size(&info->mti_pill,
716 &RMF_MDT_MD, RCL_SERVER);
718 ma->ma_cookie = req_capsule_server_get(&info->mti_pill,
720 ma->ma_cookie_size = req_capsule_get_size(&info->mti_pill,
721 &RMF_LOGCOOKIES, RCL_SERVER);
723 if (!ma->ma_lmm || !ma->ma_cookie)
724 GOTO(out_unlock_new, rc = -EINVAL);
726 ma->ma_need = MA_INODE | MA_LOV | MA_COOKIE;
728 mdt_fail_write(info->mti_ctxt, info->mti_mdt->mdt_bottom,
729 OBD_FAIL_MDS_REINT_RENAME_WRITE);
731 /* Check if @dst is subdir of @src. */
732 rc = mdt_rename_check(info, old_fid);
734 GOTO(out_unlock_new, rc);
736 rc = mdo_rename(info->mti_ctxt, mdt_object_child(msrcdir),
737 mdt_object_child(mtgtdir), old_fid, rr->rr_name,
738 (mnew ? mdt_object_child(mnew) : NULL), rr->rr_tgt, ma);
740 /* handle last link of tgt object */
742 mdt_handle_last_unlink(info, mnew, ma);
746 mdt_object_unlock_put(info, mnew, lh_newp, rc);
749 mdt_object_unlock_put(info, mold, lh_oldp, rc);
751 mdt_object_unlock_put(info, mtgtdir, lh_tgtdirp, rc);
753 mdt_object_unlock_put(info, msrcdir, lh_srcdirp, rc);
755 mdt_rename_unlock(&rename_lh);
756 mdt_shrink_reply(info, REPLY_REC_OFF + 1);
760 typedef int (*mdt_reinter)(struct mdt_thread_info *info,
761 struct mdt_lock_handle *lhc);
763 static mdt_reinter reinters[REINT_MAX] = {
764 [REINT_SETATTR] = mdt_reint_setattr,
765 [REINT_CREATE] = mdt_reint_create,
766 [REINT_LINK] = mdt_reint_link,
767 [REINT_UNLINK] = mdt_reint_unlink,
768 [REINT_RENAME] = mdt_reint_rename,
769 [REINT_OPEN] = mdt_reint_open
772 int mdt_reint_rec(struct mdt_thread_info *info,
773 struct mdt_lock_handle *lhc)
778 rc = reinters[info->mti_rr.rr_opcode](info, lhc);