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"
39 static int mdt_md_create(struct mdt_thread_info *info)
41 struct mdt_device *mdt = info->mti_mdt;
42 struct mdt_object *parent;
43 struct mdt_object *child;
44 struct mdt_lock_handle *lh;
45 struct mdt_body *repbody;
46 struct md_attr *ma = &info->mti_attr;
47 struct mdt_reint_record *rr = &info->mti_rr;
51 repbody = req_capsule_server_get(&info->mti_pill, &RMF_MDT_BODY);
53 lh = &info->mti_lh[MDT_LH_PARENT];
54 lh->mlh_mode = LCK_EX;
56 parent = mdt_object_find_lock(info, rr->rr_fid1,
57 lh, MDS_INODELOCK_UPDATE,
60 RETURN(PTR_ERR(parent));
62 child = mdt_object_find(info->mti_env, mdt, rr->rr_fid2, BYPASS_CAPA);
64 struct md_object *next = mdt_object_child(parent);
66 ma->ma_need = MA_INODE;
67 mdt_fail_write(info->mti_env, info->mti_mdt->mdt_bottom,
68 OBD_FAIL_MDS_REINT_CREATE_WRITE);
70 rc = mdo_create(info->mti_env, next, rr->rr_name,
71 mdt_object_child(child),
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));
78 mdt_body_reverse_idmap(info, repbody);
80 mdt_object_put(info->mti_env, child);
83 mdt_object_unlock_put(info, parent, lh, rc);
87 /* partial request to create object only */
88 static int mdt_md_mkobj(struct mdt_thread_info *info)
90 struct mdt_device *mdt = info->mti_mdt;
92 struct mdt_body *repbody;
93 struct md_attr *ma = &info->mti_attr;
97 repbody = req_capsule_server_get(&info->mti_pill, &RMF_MDT_BODY);
99 o = mdt_object_find(info->mti_env, mdt, info->mti_rr.rr_fid2,
102 struct md_object *next = mdt_object_child(o);
104 ma->ma_need = MA_INODE;
105 /* Cross-ref create can encounter already created obj in case
106 * of recovery, just get attr in that case */
107 if (lu_object_exists(&o->mot_obj.mo_lu) == 1) {
108 rc = mo_attr_get(info->mti_env, next, ma);
110 rc = mo_object_create(info->mti_env, next, &info->mti_spec,
114 /* return fid & attr to client. */
115 if (ma->ma_valid & MA_INODE)
116 mdt_pack_attr2body(repbody, &ma->ma_attr,
118 mdt_body_reverse_idmap(info, repbody);
120 mdt_object_put(info->mti_env, o);
127 /* In the raw-setattr case, we lock the child inode.
128 * In the write-back case or if being called from open,
129 * the client holds a lock already.
130 * We use the ATTR_FROM_OPEN (translated into MRF_SETATTR_LOCKED by
131 * mdt_setattr_unpack()) flag to tell these cases apart. */
132 int mdt_attr_set(struct mdt_thread_info *info, struct mdt_object *mo, int flags)
134 struct md_attr *ma = &info->mti_attr;
135 struct mdt_lock_handle *lh;
141 som_update = (info->mti_epoch->flags & MF_SOM_CHANGE);
143 /* Try to avoid object_lock if another epoch has been started
145 if (som_update && (info->mti_epoch->ioepoch != mo->mot_ioepoch))
148 lh = &info->mti_lh[MDT_LH_PARENT];
149 lh->mlh_mode = LCK_EX;
151 if (!(flags & MRF_SETATTR_LOCKED)) {
152 __u64 lockpart = MDS_INODELOCK_UPDATE;
153 if (ma->ma_attr.la_valid & (LA_MODE|LA_UID|LA_GID))
154 lockpart |= MDS_INODELOCK_LOOKUP;
156 rc = mdt_object_lock(info, mo, lh, lockpart);
161 /* Setattrs are syncronized through dlm lock taken above. If another
162 * epoch started, its attributes may be already flushed on disk,
164 if (som_update && (info->mti_epoch->ioepoch != mo->mot_ioepoch))
167 if (lu_object_assert_not_exists(&mo->mot_obj.mo_lu))
168 GOTO(out, rc = -ENOENT);
170 /* all attrs are packed into mti_attr in unpack_setattr */
171 mdt_fail_write(info->mti_env, info->mti_mdt->mdt_bottom,
172 OBD_FAIL_MDS_REINT_SETATTR_WRITE);
174 /* all attrs are packed into mti_attr in unpack_setattr */
175 rc = mo_attr_set(info->mti_env, mdt_object_child(mo), ma);
179 /* Re-enable SIZEONMDS. */
181 CDEBUG(D_INODE, "Closing epoch "LPU64" on "DFID". Count %d\n",
182 mo->mot_ioepoch, PFID(mdt_object_fid(mo)),
185 mdt_sizeonmds_enable(info, mo);
190 mdt_object_unlock(info, mo, lh, rc);
194 static int mdt_reint_setattr(struct mdt_thread_info *info,
195 struct mdt_lock_handle *lhc)
197 struct mdt_device *mdt = info->mti_mdt;
198 struct md_attr *ma = &info->mti_attr;
199 struct mdt_reint_record *rr = &info->mti_rr;
200 struct ptlrpc_request *req = mdt_info_req(info);
201 struct mdt_export_data *med = &req->rq_export->exp_mdt_data;
202 struct mdt_file_data *mfd;
203 struct mdt_object *mo;
204 struct md_object *next;
205 struct mdt_body *repbody;
210 DEBUG_REQ(D_INODE, req, "setattr "DFID" %x", PFID(rr->rr_fid1),
211 (unsigned int)ma->ma_attr.la_valid);
213 repbody = req_capsule_server_get(&info->mti_pill, &RMF_MDT_BODY);
214 mo = mdt_object_find(info->mti_env, info->mti_mdt, rr->rr_fid1,
217 RETURN(rc = PTR_ERR(mo));
219 if (info->mti_epoch && (info->mti_epoch->flags & MF_EPOCH_OPEN)) {
221 rc = mdt_write_get(info->mti_mdt, mo);
227 GOTO(out, rc = -ENOMEM);
229 /* FIXME: in recovery, need to pass old epoch here */
230 mdt_epoch_open(info, mo, 0);
231 repbody->ioepoch = mo->mot_ioepoch;
233 mdt_object_get(info->mti_env, mo);
234 mfd->mfd_mode = FMODE_EPOCHLCK;
235 mfd->mfd_object = mo;
236 mfd->mfd_xid = req->rq_xid;
238 spin_lock(&med->med_open_lock);
239 list_add(&mfd->mfd_list, &med->med_open_head);
240 spin_unlock(&med->med_open_lock);
241 repbody->handle.cookie = mfd->mfd_handle.h_cookie;
244 rc = mdt_attr_set(info, mo, rr->rr_flags);
248 if (info->mti_epoch && (info->mti_epoch->flags & MF_SOM_CHANGE)) {
249 LASSERT(info->mti_epoch);
251 /* Size-on-MDS Update. Find and free mfd. */
252 spin_lock(&med->med_open_lock);
253 mfd = mdt_handle2mfd(&(info->mti_epoch->handle));
255 spin_unlock(&med->med_open_lock);
256 CDEBUG(D_INODE, "no handle for file close: "
257 "fid = "DFID": cookie = "LPX64"\n",
258 PFID(info->mti_rr.rr_fid1),
259 info->mti_epoch->handle.cookie);
260 GOTO(out, rc = -ESTALE);
263 LASSERT(mfd->mfd_mode == FMODE_SOM);
264 LASSERT(ma->ma_attr.la_valid & LA_SIZE);
265 LASSERT(!(info->mti_epoch->flags & MF_EPOCH_CLOSE));
267 class_handle_unhash(&mfd->mfd_handle);
268 list_del_init(&mfd->mfd_list);
269 spin_unlock(&med->med_open_lock);
270 mdt_mfd_close(info, mfd);
273 ma->ma_need = MA_INODE;
274 next = mdt_object_child(mo);
275 rc = mo_attr_get(info->mti_env, next, ma);
279 mdt_pack_attr2body(repbody, &ma->ma_attr, mdt_object_fid(mo));
281 if (mdt->mdt_opts.mo_oss_capa) {
282 struct lustre_capa *capa;
284 capa = req_capsule_server_get(&info->mti_pill, &RMF_CAPA1);
286 capa->lc_opc = CAPA_OPC_OSS_DEFAULT | CAPA_OPC_OSS_TRUNC;
287 rc = mo_capa_get(info->mti_env, mdt_object_child(mo), capa);
290 repbody->valid |= OBD_MD_FLOSSCAPA;
293 mdt_body_reverse_idmap(info, repbody);
296 mdt_object_put(info->mti_env, mo);
300 static int mdt_reint_create(struct mdt_thread_info *info,
301 struct mdt_lock_handle *lhc)
306 if (MDT_FAIL_CHECK(OBD_FAIL_MDS_REINT_CREATE))
309 switch (info->mti_attr.ma_attr.la_mode & S_IFMT) {
312 if (strlen(info->mti_rr.rr_name) == 0) {
313 rc = mdt_md_mkobj(info);
322 /* special file should stay on the same node as parent */
323 LASSERT(strlen(info->mti_rr.rr_name) > 0);
324 rc = mdt_md_create(info);
334 static int mdt_reint_unlink(struct mdt_thread_info *info,
335 struct mdt_lock_handle *lhc)
337 struct mdt_reint_record *rr = &info->mti_rr;
338 struct ptlrpc_request *req = mdt_info_req(info);
339 struct md_attr *ma = &info->mti_attr;
340 struct lu_fid *child_fid = &info->mti_tmp_fid1;
341 struct mdt_object *mp;
342 struct mdt_object *mc;
343 struct mdt_lock_handle *parent_lh;
344 struct mdt_lock_handle *child_lh;
348 DEBUG_REQ(D_INODE, req, "unlink "DFID"/%s\n", PFID(rr->rr_fid1),
351 if (MDT_FAIL_CHECK(OBD_FAIL_MDS_REINT_UNLINK))
352 GOTO(out, rc = -ENOENT);
354 /* step 1: lock the parent */
355 parent_lh = &info->mti_lh[MDT_LH_PARENT];
356 parent_lh->mlh_mode = LCK_EX;
357 mp = mdt_object_find_lock(info, rr->rr_fid1, parent_lh,
358 MDS_INODELOCK_UPDATE, rr->rr_capa1);
360 GOTO(out, rc = PTR_ERR(mp));
362 ma->ma_lmm = req_capsule_server_get(&info->mti_pill, &RMF_MDT_MD);
363 ma->ma_lmm_size = req_capsule_get_size(&info->mti_pill,
364 &RMF_MDT_MD, RCL_SERVER);
366 ma->ma_cookie = req_capsule_server_get(&info->mti_pill,
368 ma->ma_cookie_size = req_capsule_get_size(&info->mti_pill,
371 ma->ma_need = MA_INODE | MA_LOV | MA_COOKIE;
373 if (!ma->ma_lmm || !ma->ma_cookie)
374 GOTO(out_unlock_parent, rc = -EINVAL);
376 if (strlen(rr->rr_name) == 0) {
377 /* remote partial operation */
378 rc = mo_ref_del(info->mti_env, mdt_object_child(mp), ma);
380 mdt_handle_last_unlink(info, mp, ma);
381 GOTO(out_unlock_parent, rc);
384 /* step 2: find & lock the child */
385 rc = mdo_lookup(info->mti_env, mdt_object_child(mp),
386 rr->rr_name, child_fid);
388 GOTO(out_unlock_parent, rc);
390 /* we will lock the child regardless it is local or remote. No harm. */
391 mc = mdt_object_find(info->mti_env, info->mti_mdt, child_fid,
394 GOTO(out_unlock_parent, rc = PTR_ERR(mc));
395 child_lh = &info->mti_lh[MDT_LH_CHILD];
396 child_lh->mlh_mode = LCK_EX;
397 rc = mdt_object_cr_lock(info, mc, child_lh, MDS_INODELOCK_FULL);
399 GOTO(out_put_child, rc);
401 mdt_fail_write(info->mti_env, info->mti_mdt->mdt_bottom,
402 OBD_FAIL_MDS_REINT_UNLINK_WRITE);
405 * Now we can only make sure we need MA_INODE, in mdd layer, will check
406 * whether need MA_LOV and MA_COOKIE.
408 ma->ma_need = MA_INODE;
409 rc = mdo_unlink(info->mti_env, mdt_object_child(mp),
410 mdt_object_child(mc), rr->rr_name, ma);
412 GOTO(out_unlock_child, rc);
414 mdt_handle_last_unlink(info, mc, ma);
416 GOTO(out_unlock_child, rc);
418 mdt_object_unlock(info, mc, child_lh, rc);
420 mdt_object_put(info->mti_env, mc);
422 mdt_object_unlock_put(info, mp, parent_lh, rc);
424 mdt_shrink_reply(info, REPLY_REC_OFF + 1, 0, 0);
428 static int mdt_reint_link(struct mdt_thread_info *info,
429 struct mdt_lock_handle *lhc)
431 struct mdt_reint_record *rr = &info->mti_rr;
432 struct ptlrpc_request *req = mdt_info_req(info);
433 struct md_attr *ma = &info->mti_attr;
434 struct mdt_object *ms;
435 struct mdt_object *mp;
436 struct mdt_lock_handle *lhs;
437 struct mdt_lock_handle *lhp;
442 DEBUG_REQ(D_INODE, req, "link original "DFID" to "DFID" %s",
443 PFID(rr->rr_fid1), PFID(rr->rr_fid2), rr->rr_name);
445 if (MDT_FAIL_CHECK(OBD_FAIL_MDS_REINT_LINK))
448 /* step 1: lock the source */
449 lhs = &info->mti_lh[MDT_LH_PARENT];
450 lhs->mlh_mode = LCK_EX;
451 ms = mdt_object_find_lock(info, rr->rr_fid1, lhs,
452 MDS_INODELOCK_UPDATE, rr->rr_capa1);
456 if (strlen(rr->rr_name) == 0) {
457 /* remote partial operation */
458 rc = mo_ref_add(info->mti_env, mdt_object_child(ms));
459 GOTO(out_unlock_source, rc);
461 /*step 2: find & lock the target parent dir*/
462 lhp = &info->mti_lh[MDT_LH_CHILD];
463 lhp->mlh_mode = LCK_EX;
464 mp = mdt_object_find_lock(info, rr->rr_fid2, lhp,
465 MDS_INODELOCK_UPDATE, rr->rr_capa2);
467 GOTO(out_unlock_source, rc = PTR_ERR(mp));
469 /* step 4: link it */
471 mdt_fail_write(info->mti_env, info->mti_mdt->mdt_bottom,
472 OBD_FAIL_MDS_REINT_LINK_WRITE);
474 rc = mdo_link(info->mti_env, mdt_object_child(mp),
475 mdt_object_child(ms), rr->rr_name, ma);
476 GOTO(out_unlock_target, rc);
479 mdt_object_unlock_put(info, mp, lhp, rc);
481 mdt_object_unlock_put(info, ms, lhs, rc);
485 /* partial operation for rename */
486 static int mdt_reint_rename_tgt(struct mdt_thread_info *info)
488 struct mdt_reint_record *rr = &info->mti_rr;
489 struct ptlrpc_request *req = mdt_info_req(info);
490 struct md_attr *ma = &info->mti_attr;
491 struct mdt_object *mtgtdir;
492 struct mdt_object *mtgt = NULL;
493 struct mdt_lock_handle *lh_tgtdir;
494 struct mdt_lock_handle *lh_tgt;
495 struct lu_fid *tgt_fid = &info->mti_tmp_fid1;
500 DEBUG_REQ(D_INODE, req, "rename_tgt "DFID" to "DFID" %s",
502 PFID(rr->rr_fid1), rr->rr_tgt);
504 /* step 1: lookup & lock the tgt dir */
505 lh_tgt = &info->mti_lh[MDT_LH_CHILD];
506 lh_tgtdir = &info->mti_lh[MDT_LH_PARENT];
507 lh_tgtdir->mlh_mode = LCK_EX;
508 mtgtdir = mdt_object_find_lock(info, rr->rr_fid1, lh_tgtdir,
509 MDS_INODELOCK_UPDATE, rr->rr_capa1);
511 GOTO(out, rc = PTR_ERR(mtgtdir));
513 /*step 2: find & lock the target object if exists*/
514 rc = mdo_lookup(info->mti_env, mdt_object_child(mtgtdir),
515 rr->rr_tgt, tgt_fid);
516 if (rc != 0 && rc != -ENOENT) {
517 GOTO(out_unlock_tgtdir, rc);
518 } else if (rc == 0) {
519 lh_tgt->mlh_mode = LCK_EX;
521 mtgt = mdt_object_find_lock(info, tgt_fid, lh_tgt,
522 MDS_INODELOCK_LOOKUP, BYPASS_CAPA);
524 GOTO(out_unlock_tgtdir, rc = PTR_ERR(mtgt));
526 rc = mdo_rename_tgt(info->mti_env, mdt_object_child(mtgtdir),
527 mdt_object_child(mtgt), rr->rr_fid2,
529 } else /* -ENOENT */ {
530 rc = mdo_name_insert(info->mti_env, mdt_object_child(mtgtdir),
531 rr->rr_tgt, rr->rr_fid2,
532 S_ISDIR(ma->ma_attr.la_mode));
535 /* handle last link of tgt object */
537 mdt_handle_last_unlink(info, mtgt, ma);
541 mdt_object_unlock_put(info, mtgt, lh_tgt, rc);
544 mdt_object_unlock_put(info, mtgtdir, lh_tgtdir, rc);
546 mdt_shrink_reply(info, REPLY_REC_OFF + 1, 0, 0);
550 static int mdt_rename_lock(struct mdt_thread_info *info,
551 struct lustre_handle *lh)
553 ldlm_policy_data_t policy = { .l_inodebits = { MDS_INODELOCK_UPDATE } };
554 struct ldlm_namespace *ns = info->mti_mdt->mdt_namespace;
555 int flags = LDLM_FL_ATOMIC_CB;
556 struct ldlm_res_id res_id;
561 ls = info->mti_mdt->mdt_md_dev.md_lu_dev.ld_site;
562 fid_build_res_name(&LUSTRE_BFL_FID, &res_id);
564 if (ls->ls_control_exp == NULL) {
566 * Current node is controller, that is mdt0 where we should take
569 rc = ldlm_cli_enqueue_local(ns, res_id, LDLM_IBITS, &policy,
570 LCK_EX, &flags, ldlm_blocking_ast,
571 ldlm_completion_ast, NULL, NULL, 0,
575 * This is the case mdt0 is remote node, issue DLM lock like
578 rc = ldlm_cli_enqueue(ls->ls_control_exp, NULL, res_id,
579 LDLM_IBITS, &policy, LCK_EX, &flags,
580 ldlm_blocking_ast, ldlm_completion_ast,
581 NULL, NULL, NULL, 0, NULL, lh, 0);
587 static void mdt_rename_unlock(struct lustre_handle *lh)
590 ldlm_lock_decref(lh, LCK_EX);
595 * This is is_subdir() variant, it is CMD is cmm forwards it to correct
596 * target. Source should not be ancestor of target dir. May be other rename
597 * checks can be moved here later.
599 static int mdt_rename_check(struct mdt_thread_info *info, struct lu_fid *fid)
601 struct mdt_reint_record *rr = &info->mti_rr;
602 struct lu_fid dst_fid = *rr->rr_fid2;
603 struct mdt_object *dst;
608 dst = mdt_object_find(info->mti_env, info->mti_mdt, &dst_fid,
611 rc = mdo_is_subdir(info->mti_env, mdt_object_child(dst),
613 mdt_object_put(info->mti_env, dst);
615 CERROR("Error while doing mdo_is_subdir(), rc %d\n",
617 } else if (rc == 1) {
623 } while (rc == EREMOTE);
628 static int mdt_reint_rename(struct mdt_thread_info *info,
629 struct mdt_lock_handle *lhc)
631 struct mdt_reint_record *rr = &info->mti_rr;
632 struct req_capsule *pill = &info->mti_pill;
633 struct md_attr *ma = &info->mti_attr;
634 struct mdt_object *msrcdir;
635 struct mdt_object *mtgtdir;
636 struct mdt_object *mold;
637 struct mdt_object *mnew = NULL;
638 struct mdt_lock_handle *lh_srcdirp;
639 struct mdt_lock_handle *lh_tgtdirp;
640 struct mdt_lock_handle *lh_oldp;
641 struct mdt_lock_handle *lh_newp;
642 struct lu_fid *old_fid = &info->mti_tmp_fid1;
643 struct lu_fid *new_fid = &info->mti_tmp_fid2;
644 struct lustre_handle rename_lh = { 0 };
649 rc = req_capsule_get_size(pill, &RMF_NAME, RCL_CLIENT);
651 /* if (rr->rr_name[0] == 0) {*/
652 rc = mdt_reint_rename_tgt(info);
656 rc = mdt_rename_lock(info, &rename_lh);
658 CERROR("can't lock FS for rename, rc %d\n", rc);
662 lh_newp = &info->mti_lh[MDT_LH_NEW];
664 /* step 1: lock the source dir */
665 lh_srcdirp = &info->mti_lh[MDT_LH_PARENT];
666 lh_srcdirp->mlh_mode = LCK_EX;
667 msrcdir = mdt_object_find_lock(info, rr->rr_fid1, lh_srcdirp,
668 MDS_INODELOCK_UPDATE, rr->rr_capa1);
670 GOTO(out_rename_lock, rc = PTR_ERR(msrcdir));
672 /*step 2: find & lock the target dir*/
673 lh_tgtdirp = &info->mti_lh[MDT_LH_CHILD];
674 lh_tgtdirp->mlh_mode = LCK_EX;
675 if (lu_fid_eq(rr->rr_fid1, rr->rr_fid2)) {
676 mdt_object_get(info->mti_env, msrcdir);
679 mtgtdir = mdt_object_find(info->mti_env, info->mti_mdt,
680 rr->rr_fid2, rr->rr_capa2);
682 GOTO(out_unlock_source, rc = PTR_ERR(mtgtdir));
684 rc = mdt_object_cr_lock(info, mtgtdir, lh_tgtdirp,
685 MDS_INODELOCK_UPDATE);
687 mdt_object_put(info->mti_env, mtgtdir);
688 GOTO(out_unlock_source, rc);
693 /*step 3: find & lock the old object*/
694 rc = mdo_lookup(info->mti_env, mdt_object_child(msrcdir),
695 rr->rr_name, old_fid);
697 GOTO(out_unlock_target, rc);
699 if (lu_fid_eq(old_fid, rr->rr_fid1) || lu_fid_eq(old_fid, rr->rr_fid2))
700 GOTO(out_unlock_target, rc = -EINVAL);
702 lh_oldp = &info->mti_lh[MDT_LH_OLD];
703 lh_oldp->mlh_mode = LCK_EX;
704 mold = mdt_object_find_lock(info, old_fid, lh_oldp,
705 MDS_INODELOCK_LOOKUP, BYPASS_CAPA);
707 GOTO(out_unlock_target, rc = PTR_ERR(mold));
709 /*step 4: find & lock the new object*/
710 /* new target object may not exist now */
711 rc = mdo_lookup(info->mti_env, mdt_object_child(mtgtdir),
712 rr->rr_tgt, new_fid);
714 /* the new_fid should have been filled at this moment*/
715 if (lu_fid_eq(old_fid, new_fid))
716 GOTO(out_unlock_old, rc);
718 if (lu_fid_eq(new_fid, rr->rr_fid1) ||
719 lu_fid_eq(new_fid, rr->rr_fid2))
720 GOTO(out_unlock_old, rc = -EINVAL);
722 lh_newp->mlh_mode = LCK_EX;
723 mnew = mdt_object_find(info->mti_env, info->mti_mdt, new_fid,
726 GOTO(out_unlock_old, rc = PTR_ERR(mnew));
728 rc = mdt_object_cr_lock(info, mnew, lh_newp,
731 mdt_object_put(info->mti_env, mnew);
732 GOTO(out_unlock_old, rc);
734 } else if (rc != -EREMOTE && rc != -ENOENT)
735 GOTO(out_unlock_old, rc);
737 /* step 5: dome some checking ...*/
738 /* step 6: rename it */
739 ma->ma_lmm = req_capsule_server_get(&info->mti_pill, &RMF_MDT_MD);
740 ma->ma_lmm_size = req_capsule_get_size(&info->mti_pill,
741 &RMF_MDT_MD, RCL_SERVER);
743 ma->ma_cookie = req_capsule_server_get(&info->mti_pill,
745 ma->ma_cookie_size = req_capsule_get_size(&info->mti_pill,
746 &RMF_LOGCOOKIES, RCL_SERVER);
748 if (!ma->ma_lmm || !ma->ma_cookie)
749 GOTO(out_unlock_new, rc = -EINVAL);
751 ma->ma_need = MA_INODE | MA_LOV | MA_COOKIE;
753 mdt_fail_write(info->mti_env, info->mti_mdt->mdt_bottom,
754 OBD_FAIL_MDS_REINT_RENAME_WRITE);
756 /* Check if @dst is subdir of @src. */
757 rc = mdt_rename_check(info, old_fid);
759 GOTO(out_unlock_new, rc);
761 rc = mdo_rename(info->mti_env, mdt_object_child(msrcdir),
762 mdt_object_child(mtgtdir), old_fid, rr->rr_name,
763 (mnew ? mdt_object_child(mnew) : NULL),
766 /* handle last link of tgt object */
768 mdt_handle_last_unlink(info, mnew, ma);
772 mdt_object_unlock_put(info, mnew, lh_newp, rc);
775 mdt_object_unlock_put(info, mold, lh_oldp, rc);
777 mdt_object_unlock_put(info, mtgtdir, lh_tgtdirp, rc);
779 mdt_object_unlock_put(info, msrcdir, lh_srcdirp, rc);
781 mdt_rename_unlock(&rename_lh);
783 mdt_shrink_reply(info, REPLY_REC_OFF + 1, 0, 0);
787 typedef int (*mdt_reinter)(struct mdt_thread_info *info,
788 struct mdt_lock_handle *lhc);
790 static mdt_reinter reinters[REINT_MAX] = {
791 [REINT_SETATTR] = mdt_reint_setattr,
792 [REINT_CREATE] = mdt_reint_create,
793 [REINT_LINK] = mdt_reint_link,
794 [REINT_UNLINK] = mdt_reint_unlink,
795 [REINT_RENAME] = mdt_reint_rename,
796 [REINT_OPEN] = mdt_reint_open
799 int mdt_reint_rec(struct mdt_thread_info *info,
800 struct mdt_lock_handle *lhc)
805 rc = reinters[info->mti_rr.rr_opcode](info, lhc);