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) 2007, 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.
36 * lustre/mdt/mdt_reint.c
38 * Lustre Metadata Target (mdt) reintegration routines
40 * Author: Peter Braam <braam@clusterfs.com>
41 * Author: Andreas Dilger <adilger@clusterfs.com>
42 * Author: Phil Schwan <phil@clusterfs.com>
43 * Author: Huang Hua <huanghua@clusterfs.com>
44 * Author: Yury Umanets <umka@clusterfs.com>
47 #define DEBUG_SUBSYSTEM S_MDS
49 #include "mdt_internal.h"
51 static inline void mdt_reint_init_ma(struct mdt_thread_info *info,
54 ma->ma_need = MA_INODE;
58 static int mdt_create_pack_capa(struct mdt_thread_info *info, int rc,
59 struct mdt_object *object,
60 struct mdt_body *repbody)
64 /* for cross-ref mkdir, mds capa has been fetched from remote obj, then
65 * we won't go to below*/
66 if (repbody->valid & OBD_MD_FLMDSCAPA)
69 if (rc == 0 && info->mti_mdt->mdt_lut.lut_mds_capa &&
70 exp_connect_flags(info->mti_exp) & OBD_CONNECT_MDS_CAPA) {
71 struct lustre_capa *capa;
73 capa = req_capsule_server_get(info->mti_pill, &RMF_CAPA1);
75 capa->lc_opc = CAPA_OPC_MDS_DEFAULT;
76 rc = mo_capa_get(info->mti_env, mdt_object_child(object), capa,
79 repbody->valid |= OBD_MD_FLMDSCAPA;
86 * Get version of object by fid.
88 * Return real version or ENOENT_VERSION if object doesn't exist
90 static void mdt_obj_version_get(struct mdt_thread_info *info,
91 struct mdt_object *o, __u64 *version)
94 if (mdt_object_exists(o) && !mdt_object_remote(o) &&
95 !fid_is_obf(mdt_object_fid(o)))
96 *version = dt_version_get(info->mti_env, mdt_obj2dt(o));
98 *version = ENOENT_VERSION;
99 CDEBUG(D_INODE, "FID "DFID" version is "LPX64"\n",
100 PFID(mdt_object_fid(o)), *version);
104 * Check version is correct.
106 * Should be called only during replay.
108 static int mdt_version_check(struct ptlrpc_request *req,
109 __u64 version, int idx)
111 __u64 *pre_ver = lustre_msg_get_versions(req->rq_reqmsg);
114 if (!exp_connect_vbr(req->rq_export))
117 LASSERT(req_is_replay(req));
118 /** VBR: version is checked always because costs nothing */
119 LASSERT(idx < PTLRPC_NUM_VERSIONS);
120 /** Sanity check for malformed buffers */
121 if (pre_ver == NULL) {
122 CERROR("No versions in request buffer\n");
123 spin_lock(&req->rq_export->exp_lock);
124 req->rq_export->exp_vbr_failed = 1;
125 spin_unlock(&req->rq_export->exp_lock);
127 } else if (pre_ver[idx] != version) {
128 CDEBUG(D_INODE, "Version mismatch "LPX64" != "LPX64"\n",
129 pre_ver[idx], version);
130 spin_lock(&req->rq_export->exp_lock);
131 req->rq_export->exp_vbr_failed = 1;
132 spin_unlock(&req->rq_export->exp_lock);
139 * Save pre-versions in reply.
141 static void mdt_version_save(struct ptlrpc_request *req, __u64 version,
146 if (!exp_connect_vbr(req->rq_export))
149 LASSERT(!req_is_replay(req));
150 LASSERT(req->rq_repmsg != NULL);
151 reply_ver = lustre_msg_get_versions(req->rq_repmsg);
153 reply_ver[idx] = version;
157 * Save enoent version, it is needed when it is obvious that object doesn't
158 * exist, e.g. child during create.
160 static void mdt_enoent_version_save(struct mdt_thread_info *info, int idx)
162 /* save version of file name for replay, it must be ENOENT here */
163 if (!req_is_replay(mdt_info_req(info))) {
164 info->mti_ver[idx] = ENOENT_VERSION;
165 mdt_version_save(mdt_info_req(info), info->mti_ver[idx], idx);
170 * Get version from disk and save in reply buffer.
172 * Versions are saved in reply only during normal operations not replays.
174 void mdt_version_get_save(struct mdt_thread_info *info,
175 struct mdt_object *mto, int idx)
177 /* don't save versions during replay */
178 if (!req_is_replay(mdt_info_req(info))) {
179 mdt_obj_version_get(info, mto, &info->mti_ver[idx]);
180 mdt_version_save(mdt_info_req(info), info->mti_ver[idx], idx);
185 * Get version from disk and check it, no save in reply.
187 int mdt_version_get_check(struct mdt_thread_info *info,
188 struct mdt_object *mto, int idx)
190 /* only check versions during replay */
191 if (!req_is_replay(mdt_info_req(info)))
194 mdt_obj_version_get(info, mto, &info->mti_ver[idx]);
195 return mdt_version_check(mdt_info_req(info), info->mti_ver[idx], idx);
199 * Get version from disk and check if recovery or just save.
201 int mdt_version_get_check_save(struct mdt_thread_info *info,
202 struct mdt_object *mto, int idx)
206 mdt_obj_version_get(info, mto, &info->mti_ver[idx]);
207 if (req_is_replay(mdt_info_req(info)))
208 rc = mdt_version_check(mdt_info_req(info), info->mti_ver[idx],
211 mdt_version_save(mdt_info_req(info), info->mti_ver[idx], idx);
216 * Lookup with version checking.
218 * This checks version of 'name'. Many reint functions uses 'name' for child not
219 * FID, therefore we need to get object by name and check its version.
221 int mdt_lookup_version_check(struct mdt_thread_info *info,
222 struct mdt_object *p, const struct lu_name *lname,
223 struct lu_fid *fid, int idx)
227 rc = mdo_lookup(info->mti_env, mdt_object_child(p), lname, fid,
229 /* Check version only during replay */
230 if (!req_is_replay(mdt_info_req(info)))
233 info->mti_ver[idx] = ENOENT_VERSION;
235 struct mdt_object *child;
236 child = mdt_object_find(info->mti_env, info->mti_mdt, fid);
237 if (likely(!IS_ERR(child))) {
238 mdt_obj_version_get(info, child, &info->mti_ver[idx]);
239 mdt_object_put(info->mti_env, child);
242 vbrc = mdt_version_check(mdt_info_req(info), info->mti_ver[idx], idx);
243 return vbrc ? vbrc : rc;
248 * VBR: we save three versions in reply:
249 * 0 - parent. Check that parent version is the same during replay.
250 * 1 - name. Version of 'name' if file exists with the same name or
251 * ENOENT_VERSION, it is needed because file may appear due to missed replays.
252 * 2 - child. Version of child by FID. Must be ENOENT. It is mostly sanity
255 static int mdt_md_create(struct mdt_thread_info *info)
257 struct mdt_device *mdt = info->mti_mdt;
258 struct mdt_object *parent;
259 struct mdt_object *child;
260 struct mdt_lock_handle *lh;
261 struct mdt_body *repbody;
262 struct md_attr *ma = &info->mti_attr;
263 struct mdt_reint_record *rr = &info->mti_rr;
267 DEBUG_REQ(D_INODE, mdt_info_req(info), "Create ("DNAME"->"DFID") "
269 PNAME(&rr->rr_name), PFID(rr->rr_fid2), PFID(rr->rr_fid1));
271 if (fid_is_obf(rr->rr_fid1) || fid_is_dot_lustre(rr->rr_fid1))
274 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
276 lh = &info->mti_lh[MDT_LH_PARENT];
277 mdt_lock_pdo_init(lh, LCK_PW, &rr->rr_name);
279 parent = mdt_object_find_lock(info, rr->rr_fid1, lh,
280 MDS_INODELOCK_UPDATE);
282 RETURN(PTR_ERR(parent));
284 rc = mdt_version_get_check_save(info, parent, 0);
286 GOTO(out_put_parent, rc);
289 * Check child name version during replay.
290 * During create replay a file may exist with same name.
292 rc = mdt_lookup_version_check(info, parent, &rr->rr_name,
293 &info->mti_tmp_fid1, 1);
295 GOTO(out_put_parent, rc = -EEXIST);
297 /* -ENOENT is expected here */
299 GOTO(out_put_parent, rc);
301 /* save version of file name for replay, it must be ENOENT here */
302 mdt_enoent_version_save(info, 1);
304 child = mdt_object_new(info->mti_env, mdt, rr->rr_fid2);
305 if (likely(!IS_ERR(child))) {
306 struct md_object *next = mdt_object_child(parent);
308 if (mdt_object_remote(child)) {
309 struct seq_server_site *ss;
310 struct lu_ucred *uc = mdt_ucred(info);
312 if (!md_capable(uc, CFS_CAP_SYS_ADMIN)) {
314 mdt->mdt_enable_remote_dir_gid &&
315 mdt->mdt_enable_remote_dir_gid != -1) {
316 CERROR("%s: Creating remote dir is only"
317 " permitted for administrator or"
318 " set mdt_enable_remote_dir_gid:"
320 mdt_obd_name(mdt), -EPERM);
321 GOTO(out_put_child, rc = -EPERM);
325 ss = mdt_seq_site(mdt);
326 if (ss->ss_node_id != 0 &&
327 mdt->mdt_enable_remote_dir == 0) {
328 CERROR("%s: remote dir is only permitted on"
330 " mdt.*.enable_remote_dir=1\n",
332 GOTO(out_put_child, rc = -EPERM);
334 if (!mdt_is_dne_client(mdt_info_req(info)->rq_export)) {
335 /* Return -EIO for old client */
336 GOTO(out_put_child, rc = -EIO);
340 ma->ma_need = MA_INODE;
342 /* capa for cross-ref will be stored here */
343 ma->ma_capa = req_capsule_server_get(info->mti_pill,
345 LASSERT(ma->ma_capa);
347 mdt_fail_write(info->mti_env, info->mti_mdt->mdt_bottom,
348 OBD_FAIL_MDS_REINT_CREATE_WRITE);
350 /* Version of child will be updated on disk. */
351 tgt_vbr_obj_set(info->mti_env, mdt_obj2dt(child));
352 rc = mdt_version_get_check_save(info, child, 2);
354 GOTO(out_put_child, rc);
356 /* Let lower layer know current lock mode. */
357 info->mti_spec.sp_cr_mode =
358 mdt_dlm_mode2mdl_mode(lh->mlh_pdo_mode);
361 * Do not perform lookup sanity check. We know that name does
364 info->mti_spec.sp_cr_lookup = 0;
365 info->mti_spec.sp_feat = &dt_directory_features;
367 rc = mdo_create(info->mti_env, next, &rr->rr_name,
368 mdt_object_child(child), &info->mti_spec, ma);
370 rc = mdt_attr_get_complex(info, child, ma);
373 /* Return fid & attr to client. */
374 if (ma->ma_valid & MA_INODE)
375 mdt_pack_attr2body(info, repbody, &ma->ma_attr,
376 mdt_object_fid(child));
379 mdt_object_put(info->mti_env, child);
383 mdt_create_pack_capa(info, rc, child, repbody);
385 mdt_object_unlock_put(info, parent, lh, rc);
389 int mdt_attr_set(struct mdt_thread_info *info, struct mdt_object *mo,
390 struct md_attr *ma, int flags)
392 struct mdt_lock_handle *lh;
393 int do_vbr = ma->ma_attr.la_valid & (LA_MODE|LA_UID|LA_GID|LA_FLAGS);
394 __u64 lockpart = MDS_INODELOCK_UPDATE;
398 /* attr shouldn't be set on remote object */
399 LASSERT(!mdt_object_remote(mo));
401 lh = &info->mti_lh[MDT_LH_PARENT];
402 mdt_lock_reg_init(lh, LCK_PW);
404 /* Even though the new MDT will grant PERM lock to the old
405 * client, but the old client will almost ignore that during
406 * So it needs to revoke both LOOKUP and PERM lock here, so
407 * both new and old client can cancel the dcache */
408 if (ma->ma_attr.la_valid & (LA_MODE|LA_UID|LA_GID))
409 lockpart |= MDS_INODELOCK_LOOKUP | MDS_INODELOCK_PERM;
411 rc = mdt_object_lock(info, mo, lh, lockpart, MDT_LOCAL_LOCK);
415 if (mdt_object_exists(mo) == 0)
416 GOTO(out_unlock, rc = -ENOENT);
418 /* all attrs are packed into mti_attr in unpack_setattr */
419 mdt_fail_write(info->mti_env, info->mti_mdt->mdt_bottom,
420 OBD_FAIL_MDS_REINT_SETATTR_WRITE);
422 /* This is only for set ctime when rename's source is on remote MDS. */
423 if (unlikely(ma->ma_attr.la_valid == LA_CTIME))
424 ma->ma_attr_flags |= MDS_VTX_BYPASS;
426 /* VBR: update version if attr changed are important for recovery */
428 /* update on-disk version of changed object */
429 tgt_vbr_obj_set(info->mti_env, mdt_obj2dt(mo));
430 rc = mdt_version_get_check_save(info, mo, 0);
432 GOTO(out_unlock, rc);
435 /* Ensure constant striping during chown(). See LU-2789. */
436 if (ma->ma_attr.la_valid & (LA_UID|LA_GID))
437 mutex_lock(&mo->mot_lov_mutex);
439 /* all attrs are packed into mti_attr in unpack_setattr */
440 rc = mo_attr_set(info->mti_env, mdt_object_child(mo), ma);
442 if (ma->ma_attr.la_valid & (LA_UID|LA_GID))
443 mutex_unlock(&mo->mot_lov_mutex);
446 GOTO(out_unlock, rc);
450 mdt_object_unlock(info, mo, lh, rc);
455 * Check HSM flags and add HS_DIRTY flag if relevant.
457 * A file could be set dirty only if it has a copy in the backend (HS_EXISTS)
458 * and is not RELEASED.
460 int mdt_add_dirty_flag(struct mdt_thread_info *info, struct mdt_object *mo,
466 /* If the file was modified, add the dirty flag */
467 ma->ma_need = MA_HSM;
468 rc = mdt_attr_get_complex(info, mo, ma);
470 CERROR("file attribute read error for "DFID": %d.\n",
471 PFID(mdt_object_fid(mo)), rc);
475 /* If an up2date copy exists in the backend, add dirty flag */
476 if ((ma->ma_valid & MA_HSM) && (ma->ma_hsm.mh_flags & HS_EXISTS)
477 && !(ma->ma_hsm.mh_flags & (HS_DIRTY|HS_RELEASED))) {
478 struct mdt_lock_handle *lh = &info->mti_lh[MDT_LH_CHILD];
480 ma->ma_hsm.mh_flags |= HS_DIRTY;
482 mdt_lock_reg_init(lh, LCK_PW);
483 rc = mdt_object_lock(info, mo, lh, MDS_INODELOCK_XATTR,
488 rc = mdt_hsm_attr_set(info, mo, &ma->ma_hsm);
490 CERROR("file attribute change error for "DFID": %d\n",
491 PFID(mdt_object_fid(mo)), rc);
492 mdt_object_unlock(info, mo, lh, rc);
498 static int mdt_reint_setattr(struct mdt_thread_info *info,
499 struct mdt_lock_handle *lhc)
501 struct md_attr *ma = &info->mti_attr;
502 struct mdt_reint_record *rr = &info->mti_rr;
503 struct ptlrpc_request *req = mdt_info_req(info);
504 struct mdt_export_data *med = &req->rq_export->exp_mdt_data;
505 struct mdt_file_data *mfd;
506 struct mdt_object *mo;
507 struct mdt_body *repbody;
511 DEBUG_REQ(D_INODE, req, "setattr "DFID" %x", PFID(rr->rr_fid1),
512 (unsigned int)ma->ma_attr.la_valid);
514 if (info->mti_dlm_req)
515 ldlm_request_cancel(req, info->mti_dlm_req, 0);
517 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
518 mo = mdt_object_find(info->mti_env, info->mti_mdt, rr->rr_fid1);
520 GOTO(out, rc = PTR_ERR(mo));
522 /* start a log jounal handle if needed */
523 if (!(mdt_conn_flags(info) & OBD_CONNECT_SOM)) {
524 if ((ma->ma_attr.la_valid & LA_SIZE) ||
525 (rr->rr_flags & MRF_OPEN_TRUNC)) {
526 /* Check write access for the O_TRUNC case */
527 if (mdt_write_read(mo) < 0)
528 GOTO(out_put, rc = -ETXTBSY);
530 } else if (info->mti_ioepoch &&
531 (info->mti_ioepoch->flags & MF_EPOCH_OPEN)) {
532 /* Truncate case. IOEpoch is opened. */
533 rc = mdt_write_get(mo);
537 mfd = mdt_mfd_new(med);
540 GOTO(out_put, rc = -ENOMEM);
543 mdt_ioepoch_open(info, mo, 0);
544 repbody->ioepoch = mo->mot_ioepoch;
546 mdt_object_get(info->mti_env, mo);
547 mdt_mfd_set_mode(mfd, MDS_FMODE_TRUNC);
548 mfd->mfd_object = mo;
549 mfd->mfd_xid = req->rq_xid;
551 spin_lock(&med->med_open_lock);
552 cfs_list_add(&mfd->mfd_list, &med->med_open_head);
553 spin_unlock(&med->med_open_lock);
554 repbody->handle.cookie = mfd->mfd_handle.h_cookie;
557 som_au = info->mti_ioepoch && info->mti_ioepoch->flags & MF_SOM_CHANGE;
559 /* SOM Attribute update case. Find the proper mfd and update
560 * SOM attributes on the proper object. */
561 LASSERT(mdt_conn_flags(info) & OBD_CONNECT_SOM);
562 LASSERT(info->mti_ioepoch);
564 spin_lock(&med->med_open_lock);
565 mfd = mdt_handle2mfd(med, &info->mti_ioepoch->handle,
568 spin_unlock(&med->med_open_lock);
569 CDEBUG(D_INODE, "no handle for file close: "
570 "fid = "DFID": cookie = "LPX64"\n",
571 PFID(info->mti_rr.rr_fid1),
572 info->mti_ioepoch->handle.cookie);
573 GOTO(out_put, rc = -ESTALE);
575 LASSERT(mfd->mfd_mode == MDS_FMODE_SOM);
576 LASSERT(!(info->mti_ioepoch->flags & MF_EPOCH_CLOSE));
578 class_handle_unhash(&mfd->mfd_handle);
579 cfs_list_del_init(&mfd->mfd_list);
580 spin_unlock(&med->med_open_lock);
582 mdt_mfd_close(info, mfd);
583 } else if ((ma->ma_valid & MA_INODE) && ma->ma_attr.la_valid) {
584 LASSERT((ma->ma_valid & MA_LOV) == 0);
585 rc = mdt_attr_set(info, mo, ma, rr->rr_flags);
588 } else if ((ma->ma_valid & MA_LOV) && (ma->ma_valid & MA_INODE)) {
589 struct lu_buf *buf = &info->mti_buf;
590 LASSERT(ma->ma_attr.la_valid == 0);
591 buf->lb_buf = ma->ma_lmm;
592 buf->lb_len = ma->ma_lmm_size;
593 rc = mo_xattr_set(info->mti_env, mdt_object_child(mo),
594 buf, XATTR_NAME_LOV, 0);
600 /* If file data is modified, add the dirty flag */
601 if (ma->ma_attr_flags & MDS_DATA_MODIFIED)
602 rc = mdt_add_dirty_flag(info, mo, ma);
604 ma->ma_need = MA_INODE;
606 rc = mdt_attr_get_complex(info, mo, ma);
610 mdt_pack_attr2body(info, repbody, &ma->ma_attr, mdt_object_fid(mo));
612 if (info->mti_mdt->mdt_lut.lut_oss_capa &&
613 exp_connect_flags(info->mti_exp) & OBD_CONNECT_OSS_CAPA &&
614 S_ISREG(lu_object_attr(&mo->mot_obj)) &&
615 (ma->ma_attr.la_valid & LA_SIZE) && !som_au) {
616 struct lustre_capa *capa;
618 capa = req_capsule_server_get(info->mti_pill, &RMF_CAPA2);
620 capa->lc_opc = CAPA_OPC_OSS_DEFAULT | CAPA_OPC_OSS_TRUNC;
621 rc = mo_capa_get(info->mti_env, mdt_object_child(mo), capa, 0);
624 repbody->valid |= OBD_MD_FLOSSCAPA;
629 mdt_object_put(info->mti_env, mo);
632 mdt_counter_incr(req, LPROC_MDT_SETATTR);
634 mdt_client_compatibility(info);
635 rc2 = mdt_fix_reply(info);
641 static int mdt_reint_create(struct mdt_thread_info *info,
642 struct mdt_lock_handle *lhc)
644 struct ptlrpc_request *req = mdt_info_req(info);
648 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_REINT_CREATE))
649 RETURN(err_serious(-ESTALE));
651 if (info->mti_dlm_req)
652 ldlm_request_cancel(mdt_info_req(info), info->mti_dlm_req, 0);
654 if (!lu_name_is_valid(&info->mti_rr.rr_name))
657 switch (info->mti_attr.ma_attr.la_mode & S_IFMT) {
659 mdt_counter_incr(req, LPROC_MDT_MKDIR);
667 /* Special file should stay on the same node as parent. */
668 mdt_counter_incr(req, LPROC_MDT_MKNOD);
671 CERROR("%s: Unsupported mode %o\n",
672 mdt_obd_name(info->mti_mdt),
673 info->mti_attr.ma_attr.la_mode);
674 RETURN(err_serious(-EOPNOTSUPP));
677 rc = mdt_md_create(info);
682 * VBR: save parent version in reply and child version getting by its name.
683 * Version of child is getting and checking during its lookup. If
685 static int mdt_reint_unlink(struct mdt_thread_info *info,
686 struct mdt_lock_handle *lhc)
688 struct mdt_reint_record *rr = &info->mti_rr;
689 struct ptlrpc_request *req = mdt_info_req(info);
690 struct md_attr *ma = &info->mti_attr;
691 struct lu_fid *child_fid = &info->mti_tmp_fid1;
692 struct mdt_object *mp;
693 struct mdt_object *mc;
694 struct mdt_lock_handle *parent_lh;
695 struct mdt_lock_handle *child_lh;
700 DEBUG_REQ(D_INODE, req, "unlink "DFID"/"DNAME"", PFID(rr->rr_fid1),
701 PNAME(&rr->rr_name));
703 if (info->mti_dlm_req)
704 ldlm_request_cancel(req, info->mti_dlm_req, 0);
706 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_REINT_UNLINK))
707 RETURN(err_serious(-ENOENT));
709 if (fid_is_obf(rr->rr_fid1) || fid_is_dot_lustre(rr->rr_fid1))
712 * step 1: Found the parent.
714 mp = mdt_object_find(info->mti_env, info->mti_mdt, rr->rr_fid1);
720 parent_lh = &info->mti_lh[MDT_LH_PARENT];
722 if (mdt_object_remote(mp)) {
723 mdt_lock_reg_init(parent_lh, LCK_EX);
724 rc = mdt_remote_object_lock(info, mp, &parent_lh->mlh_rreg_lh,
725 parent_lh->mlh_rreg_mode,
726 MDS_INODELOCK_UPDATE);
728 GOTO(put_parent, rc);
731 mdt_lock_pdo_init(parent_lh, LCK_PW, &rr->rr_name);
732 rc = mdt_object_lock(info, mp, parent_lh, MDS_INODELOCK_UPDATE,
735 GOTO(put_parent, rc);
737 rc = mdt_version_get_check_save(info, mp, 0);
739 GOTO(unlock_parent, rc);
742 /* step 2: find & lock the child */
743 /* lookup child object along with version checking */
745 rc = mdt_lookup_version_check(info, mp, &rr->rr_name, child_fid, 1);
747 /* Name might not be able to find during resend of
748 * remote unlink, considering following case.
749 * dir_A is a remote directory, the name entry of
750 * dir_A is on MDT0, the directory is on MDT1,
752 * 1. client sends unlink req to MDT1.
753 * 2. MDT1 sends name delete update to MDT0.
754 * 3. name entry is being deleted in MDT0 synchronously.
755 * 4. MDT1 is restarted.
756 * 5. client resends unlink req to MDT1. So it can not
757 * find the name entry on MDT0 anymore.
758 * In this case, MDT1 only needs to destory the local
761 if (mdt_object_remote(mp) && rc == -ENOENT &&
762 !fid_is_zero(rr->rr_fid2) &&
763 lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT) {
765 *child_fid = *rr->rr_fid2;
767 GOTO(unlock_parent, rc);
771 if (fid_is_obf(child_fid) || fid_is_dot_lustre(child_fid))
772 GOTO(unlock_parent, rc = -EPERM);
774 mdt_reint_init_ma(info, ma);
776 /* We will lock the child regardless it is local or remote. No harm. */
777 mc = mdt_object_find(info->mti_env, info->mti_mdt, child_fid);
779 GOTO(unlock_parent, rc = PTR_ERR(mc));
781 child_lh = &info->mti_lh[MDT_LH_CHILD];
782 mdt_lock_reg_init(child_lh, LCK_EX);
783 if (mdt_object_remote(mc)) {
784 struct mdt_body *repbody;
786 if (!fid_is_zero(rr->rr_fid2)) {
787 CDEBUG(D_INFO, "%s: name "DNAME" cannot find "DFID"\n",
788 mdt_obd_name(info->mti_mdt),
789 PNAME(&rr->rr_name), PFID(mdt_object_fid(mc)));
790 GOTO(put_child, rc = -ENOENT);
792 CDEBUG(D_INFO, "%s: name "DNAME": "DFID" is on another MDT\n",
793 mdt_obd_name(info->mti_mdt),
794 PNAME(&rr->rr_name), PFID(mdt_object_fid(mc)));
796 if (!mdt_is_dne_client(req->rq_export))
797 /* Return -EIO for old client */
798 GOTO(put_child, rc = -EIO);
800 if (info->mti_spec.sp_rm_entry) {
801 struct lu_ucred *uc = mdt_ucred(info);
803 if (!md_capable(uc, CFS_CAP_SYS_ADMIN)) {
804 CERROR("%s: unlink remote entry is only "
805 "permitted for administrator: rc = %d\n",
806 mdt_obd_name(info->mti_mdt),
808 GOTO(put_child, rc = -EPERM);
811 ma->ma_need = MA_INODE;
813 mdt_set_capainfo(info, 1, child_fid, BYPASS_CAPA);
814 rc = mdo_unlink(info->mti_env, mdt_object_child(mp),
815 NULL, &rr->rr_name, ma, no_name);
818 /* Revoke the LOOKUP lock of the remote object granted by
819 * this MDT. Since the unlink will happen on another MDT,
820 * it will release the LOOKUP lock right away. Then What
821 * would happen if another client try to grab the LOOKUP
822 * lock at the same time with unlink XXX */
823 mdt_object_lock(info, mc, child_lh, MDS_INODELOCK_LOOKUP,
825 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
826 LASSERT(repbody != NULL);
827 repbody->fid1 = *mdt_object_fid(mc);
828 repbody->valid |= (OBD_MD_FLID | OBD_MD_MDS);
829 GOTO(unlock_child, rc = -EREMOTE);
830 } else if (info->mti_spec.sp_rm_entry) {
832 CDEBUG(D_INFO, "%s: no rm_entry on local dir '"DNAME"': "
834 mdt_obd_name(info->mti_mdt), PNAME(&rr->rr_name), rc);
838 /* We used to acquire MDS_INODELOCK_FULL here but we can't do
839 * this now because a running HSM restore on the child (unlink
840 * victim) will hold the layout lock. See LU-4002. */
841 rc = mdt_object_lock(info, mc, child_lh,
842 MDS_INODELOCK_LOOKUP | MDS_INODELOCK_UPDATE,
847 mdt_fail_write(info->mti_env, info->mti_mdt->mdt_bottom,
848 OBD_FAIL_MDS_REINT_UNLINK_WRITE);
849 /* save version when object is locked */
850 mdt_version_get_save(info, mc, 1);
852 * Now we can only make sure we need MA_INODE, in mdd layer, will check
853 * whether need MA_LOV and MA_COOKIE.
855 ma->ma_need = MA_INODE;
857 mdt_set_capainfo(info, 1, child_fid, BYPASS_CAPA);
859 mutex_lock(&mc->mot_lov_mutex);
861 rc = mdo_unlink(info->mti_env, mdt_object_child(mp),
862 mdt_object_child(mc), &rr->rr_name, ma, no_name);
864 mutex_unlock(&mc->mot_lov_mutex);
866 if (rc == 0 && !lu_object_is_dying(&mc->mot_header))
867 rc = mdt_attr_get_complex(info, mc, ma);
869 mdt_handle_last_unlink(info, mc, ma);
871 if (ma->ma_valid & MA_INODE) {
872 switch (ma->ma_attr.la_mode & S_IFMT) {
874 mdt_counter_incr(req, LPROC_MDT_RMDIR);
882 mdt_counter_incr(req, LPROC_MDT_UNLINK);
885 LASSERTF(0, "bad file type %o unlinking\n",
886 ma->ma_attr.la_mode);
892 mdt_object_unlock(info, mc, child_lh, rc);
894 mdt_object_put(info->mti_env, mc);
896 mdt_object_unlock(info, mp, parent_lh, rc);
898 mdt_object_put(info->mti_env, mp);
904 * VBR: save versions in reply: 0 - parent; 1 - child by fid; 2 - target by
907 static int mdt_reint_link(struct mdt_thread_info *info,
908 struct mdt_lock_handle *lhc)
910 struct mdt_reint_record *rr = &info->mti_rr;
911 struct ptlrpc_request *req = mdt_info_req(info);
912 struct md_attr *ma = &info->mti_attr;
913 struct mdt_object *ms;
914 struct mdt_object *mp;
915 struct mdt_lock_handle *lhs;
916 struct mdt_lock_handle *lhp;
920 DEBUG_REQ(D_INODE, req, "link "DFID" to "DFID"/"DNAME,
921 PFID(rr->rr_fid1), PFID(rr->rr_fid2), PNAME(&rr->rr_name));
923 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_REINT_LINK))
924 RETURN(err_serious(-ENOENT));
926 if (info->mti_dlm_req)
927 ldlm_request_cancel(req, info->mti_dlm_req, 0);
929 /* Invalid case so return error immediately instead of
931 if (lu_fid_eq(rr->rr_fid1, rr->rr_fid2))
934 if (fid_is_obf(rr->rr_fid1) || fid_is_dot_lustre(rr->rr_fid1) ||
935 fid_is_obf(rr->rr_fid2) || fid_is_dot_lustre(rr->rr_fid2))
938 /* step 1: find & lock the target parent dir */
939 lhp = &info->mti_lh[MDT_LH_PARENT];
940 mdt_lock_pdo_init(lhp, LCK_PW, &rr->rr_name);
941 mp = mdt_object_find_lock(info, rr->rr_fid2, lhp,
942 MDS_INODELOCK_UPDATE);
946 rc = mdt_version_get_check_save(info, mp, 0);
948 GOTO(out_unlock_parent, rc);
950 /* step 2: find & lock the source */
951 lhs = &info->mti_lh[MDT_LH_CHILD];
952 mdt_lock_reg_init(lhs, LCK_EX);
954 ms = mdt_object_find(info->mti_env, info->mti_mdt, rr->rr_fid1);
956 GOTO(out_unlock_parent, rc = PTR_ERR(ms));
958 if (!mdt_object_exists(ms)) {
959 mdt_object_put(info->mti_env, ms);
960 CDEBUG(D_INFO, "%s: "DFID" does not exist.\n",
961 mdt_obd_name(info->mti_mdt), PFID(rr->rr_fid1));
962 GOTO(out_unlock_parent, rc = -ENOENT);
965 if (mdt_object_remote(ms)) {
966 mdt_object_put(info->mti_env, ms);
967 CERROR("%s: source inode "DFID" on remote MDT from "DFID"\n",
968 mdt_obd_name(info->mti_mdt), PFID(rr->rr_fid1),
970 GOTO(out_unlock_parent, rc = -EXDEV);
973 rc = mdt_object_lock(info, ms, lhs, MDS_INODELOCK_UPDATE |
974 MDS_INODELOCK_XATTR, MDT_CROSS_LOCK);
976 mdt_object_put(info->mti_env, ms);
977 GOTO(out_unlock_parent, rc);
980 /* step 3: link it */
981 mdt_fail_write(info->mti_env, info->mti_mdt->mdt_bottom,
982 OBD_FAIL_MDS_REINT_LINK_WRITE);
984 tgt_vbr_obj_set(info->mti_env, mdt_obj2dt(ms));
985 rc = mdt_version_get_check_save(info, ms, 1);
987 GOTO(out_unlock_child, rc);
989 /** check target version by name during replay */
990 rc = mdt_lookup_version_check(info, mp, &rr->rr_name,
991 &info->mti_tmp_fid1, 2);
992 if (rc != 0 && rc != -ENOENT)
993 GOTO(out_unlock_child, rc);
994 /* save version of file name for replay, it must be ENOENT here */
995 if (!req_is_replay(mdt_info_req(info))) {
997 CDEBUG(D_INFO, "link target "DNAME" existed!\n",
998 PNAME(&rr->rr_name));
999 GOTO(out_unlock_child, rc = -EEXIST);
1001 info->mti_ver[2] = ENOENT_VERSION;
1002 mdt_version_save(mdt_info_req(info), info->mti_ver[2], 2);
1005 rc = mdo_link(info->mti_env, mdt_object_child(mp),
1006 mdt_object_child(ms), &rr->rr_name, ma);
1009 mdt_counter_incr(req, LPROC_MDT_LINK);
1013 mdt_object_unlock_put(info, ms, lhs, rc);
1015 mdt_object_unlock_put(info, mp, lhp, rc);
1019 * lock the part of the directory according to the hash of the name
1020 * (lh->mlh_pdo_hash) in parallel directory lock.
1022 static int mdt_pdir_hash_lock(struct mdt_thread_info *info,
1023 struct mdt_lock_handle *lh,
1024 struct mdt_object *obj, __u64 ibits)
1026 struct ldlm_res_id *res = &info->mti_res_id;
1027 struct ldlm_namespace *ns = info->mti_mdt->mdt_namespace;
1028 ldlm_policy_data_t *policy = &info->mti_policy;
1032 * Finish res_id initializing by name hash marking part of
1033 * directory which is taking modification.
1035 LASSERT(lh->mlh_pdo_hash != 0);
1036 fid_build_pdo_res_name(mdt_object_fid(obj), lh->mlh_pdo_hash, res);
1037 memset(policy, 0, sizeof(*policy));
1038 policy->l_inodebits.bits = ibits;
1040 * Use LDLM_FL_LOCAL_ONLY for this lock. We do not know yet if it is
1041 * going to be sent to client. If it is - mdt_intent_policy() path will
1042 * fix it up and turn FL_LOCAL flag off.
1044 rc = mdt_fid_lock(ns, &lh->mlh_reg_lh, lh->mlh_reg_mode, policy,
1045 res, LDLM_FL_LOCAL_ONLY | LDLM_FL_ATOMIC_CB,
1046 &info->mti_exp->exp_handle.h_cookie);
1050 static int mdt_rename_lock(struct mdt_thread_info *info,
1051 struct lustre_handle *lh)
1053 struct ldlm_namespace *ns = info->mti_mdt->mdt_namespace;
1054 ldlm_policy_data_t *policy = &info->mti_policy;
1055 struct ldlm_res_id *res_id = &info->mti_res_id;
1060 fid_build_reg_res_name(&LUSTRE_BFL_FID, res_id);
1062 memset(policy, 0, sizeof *policy);
1063 policy->l_inodebits.bits = MDS_INODELOCK_UPDATE;
1064 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 5, 53, 0)
1065 /* In phase I, we will not do cross-rename, so local BFL lock would
1068 flags = LDLM_FL_LOCAL_ONLY | LDLM_FL_ATOMIC_CB;
1070 * Current node is controller, that is mdt0, where we should
1073 rc = ldlm_cli_enqueue_local(ns, res_id, LDLM_IBITS, policy,
1074 LCK_EX, &flags, ldlm_blocking_ast,
1075 ldlm_completion_ast, NULL, NULL, 0,
1077 &info->mti_exp->exp_handle.h_cookie,
1080 #warning "Local rename lock is invalid for DNE phase II."
1085 static void mdt_rename_unlock(struct lustre_handle *lh)
1088 LASSERT(lustre_handle_is_used(lh));
1089 ldlm_lock_decref(lh, LCK_EX);
1094 * This is is_subdir() variant, it is CMD if cmm forwards it to correct
1095 * target. Source should not be ancestor of target dir. May be other rename
1096 * checks can be moved here later.
1098 static int mdt_rename_sanity(struct mdt_thread_info *info, struct lu_fid *fid)
1100 struct mdt_reint_record *rr = &info->mti_rr;
1101 struct lu_fid dst_fid = *rr->rr_fid2;
1102 struct mdt_object *dst;
1107 LASSERT(fid_is_sane(&dst_fid));
1108 dst = mdt_object_find(info->mti_env, info->mti_mdt, &dst_fid);
1110 rc = mdo_is_subdir(info->mti_env,
1111 mdt_object_child(dst), fid,
1113 mdt_object_put(info->mti_env, dst);
1114 if (rc != -EREMOTE && rc < 0) {
1115 CERROR("Failed mdo_is_subdir(), rc %d\n", rc);
1117 /* check the found fid */
1118 if (lu_fid_eq(&dst_fid, fid))
1124 } while (rc == -EREMOTE);
1130 * VBR: rename versions in reply: 0 - src parent; 1 - tgt parent;
1131 * 2 - src child; 3 - tgt child.
1132 * Update on disk version of src child.
1135 * For DNE phase I, only these renames are allowed
1136 * mv src_p/src_c tgt_p/tgt_c
1137 * 1. src_p/src_c/tgt_p/tgt_c are in the same MDT.
1138 * 2. src_p and tgt_p are same directory, and tgt_c does not
1139 * exists. In this case, all of modification will happen
1140 * in the MDT where ithesource parent is, only one remote
1141 * update is needed, i.e. set c_time/m_time on the child.
1142 * And tgt_c will be still in the same MDT as the original
1145 static int mdt_reint_rename(struct mdt_thread_info *info,
1146 struct mdt_lock_handle *lhc)
1148 struct mdt_reint_record *rr = &info->mti_rr;
1149 struct md_attr *ma = &info->mti_attr;
1150 struct ptlrpc_request *req = mdt_info_req(info);
1151 struct mdt_object *msrcdir;
1152 struct mdt_object *mtgtdir;
1153 struct mdt_object *mold;
1154 struct mdt_object *mnew = NULL;
1155 struct mdt_lock_handle *lh_srcdirp;
1156 struct mdt_lock_handle *lh_tgtdirp;
1157 struct mdt_lock_handle *lh_oldp;
1158 struct mdt_lock_handle *lh_newp;
1159 struct lu_fid *old_fid = &info->mti_tmp_fid1;
1160 struct lu_fid *new_fid = &info->mti_tmp_fid2;
1161 struct lustre_handle rename_lh = { 0 };
1165 if (info->mti_dlm_req)
1166 ldlm_request_cancel(req, info->mti_dlm_req, 0);
1168 DEBUG_REQ(D_INODE, req, "rename "DFID"/"DNAME" to "DFID"/"DNAME,
1169 PFID(rr->rr_fid1), PNAME(&rr->rr_name),
1170 PFID(rr->rr_fid2), PNAME(&rr->rr_tgt_name));
1172 if (fid_is_obf(rr->rr_fid1) || fid_is_dot_lustre(rr->rr_fid1) ||
1173 fid_is_obf(rr->rr_fid2) || fid_is_dot_lustre(rr->rr_fid2))
1176 rc = mdt_rename_lock(info, &rename_lh);
1178 CERROR("Can't lock FS for rename, rc %d\n", rc);
1182 lh_newp = &info->mti_lh[MDT_LH_NEW];
1184 /* step 1: lock the source dir. */
1185 lh_srcdirp = &info->mti_lh[MDT_LH_PARENT];
1186 mdt_lock_pdo_init(lh_srcdirp, LCK_PW, &rr->rr_name);
1187 msrcdir = mdt_object_find_lock(info, rr->rr_fid1, lh_srcdirp,
1188 MDS_INODELOCK_UPDATE);
1189 if (IS_ERR(msrcdir))
1190 GOTO(out_rename_lock, rc = PTR_ERR(msrcdir));
1192 rc = mdt_version_get_check_save(info, msrcdir, 0);
1194 GOTO(out_unlock_source, rc);
1196 /* step 2: find & lock the target dir. */
1197 lh_tgtdirp = &info->mti_lh[MDT_LH_CHILD];
1198 mdt_lock_pdo_init(lh_tgtdirp, LCK_PW, &rr->rr_tgt_name);
1199 if (lu_fid_eq(rr->rr_fid1, rr->rr_fid2)) {
1200 mdt_object_get(info->mti_env, msrcdir);
1202 if (lh_tgtdirp->mlh_pdo_hash != lh_srcdirp->mlh_pdo_hash) {
1203 rc = mdt_pdir_hash_lock(info, lh_tgtdirp, mtgtdir,
1204 MDS_INODELOCK_UPDATE);
1206 GOTO(out_unlock_source, rc);
1207 OBD_FAIL_TIMEOUT(OBD_FAIL_MDS_PDO_LOCK2, 10);
1210 mtgtdir = mdt_object_find(info->mti_env, info->mti_mdt,
1212 if (IS_ERR(mtgtdir))
1213 GOTO(out_unlock_source, rc = PTR_ERR(mtgtdir));
1215 /* check early, the real version will be saved after locking */
1216 rc = mdt_version_get_check(info, mtgtdir, 1);
1218 GOTO(out_put_target, rc);
1220 if (unlikely(mdt_object_remote(mtgtdir))) {
1221 CDEBUG(D_INFO, "Source dir "DFID" target dir "DFID
1222 "on different MDTs\n", PFID(rr->rr_fid1),
1224 GOTO(out_put_target, rc = -EXDEV);
1226 if (likely(mdt_object_exists(mtgtdir))) {
1227 /* we lock the target dir if it is local */
1228 rc = mdt_object_lock(info, mtgtdir, lh_tgtdirp,
1229 MDS_INODELOCK_UPDATE,
1232 GOTO(out_put_target, rc);
1233 /* get and save correct version after locking */
1234 mdt_version_get_save(info, mtgtdir, 1);
1236 GOTO(out_put_target, rc = -ESTALE);
1241 /* step 3: find & lock the old object. */
1243 rc = mdt_lookup_version_check(info, msrcdir, &rr->rr_name, old_fid, 2);
1245 GOTO(out_unlock_target, rc);
1247 if (lu_fid_eq(old_fid, rr->rr_fid1) || lu_fid_eq(old_fid, rr->rr_fid2))
1248 GOTO(out_unlock_target, rc = -EINVAL);
1250 if (fid_is_obf(old_fid) || fid_is_dot_lustre(old_fid))
1251 GOTO(out_unlock_target, rc = -EPERM);
1253 mold = mdt_object_find(info->mti_env, info->mti_mdt, old_fid);
1255 GOTO(out_unlock_target, rc = PTR_ERR(mold));
1257 lh_oldp = &info->mti_lh[MDT_LH_OLD];
1258 mdt_lock_reg_init(lh_oldp, LCK_EX);
1259 rc = mdt_object_lock(info, mold, lh_oldp, MDS_INODELOCK_LOOKUP |
1260 MDS_INODELOCK_XATTR, MDT_CROSS_LOCK);
1262 mdt_object_put(info->mti_env, mold);
1263 GOTO(out_unlock_target, rc);
1266 tgt_vbr_obj_set(info->mti_env, mdt_obj2dt(mold));
1267 /* save version after locking */
1268 mdt_version_get_save(info, mold, 2);
1269 mdt_set_capainfo(info, 2, old_fid, BYPASS_CAPA);
1271 /* step 4: find & lock the new object. */
1272 /* new target object may not exist now */
1273 /* lookup with version checking */
1275 rc = mdt_lookup_version_check(info, mtgtdir, &rr->rr_tgt_name, new_fid,
1278 /* the new_fid should have been filled at this moment */
1279 if (lu_fid_eq(old_fid, new_fid))
1280 GOTO(out_unlock_old, rc);
1282 if (lu_fid_eq(new_fid, rr->rr_fid1) ||
1283 lu_fid_eq(new_fid, rr->rr_fid2))
1284 GOTO(out_unlock_old, rc = -EINVAL);
1286 if (fid_is_obf(new_fid) || fid_is_dot_lustre(new_fid))
1287 GOTO(out_unlock_old, rc = -EPERM);
1289 if (mdt_object_remote(mold)) {
1290 CDEBUG(D_INFO, "Src child "DFID" is on another MDT\n",
1292 GOTO(out_unlock_old, rc = -EXDEV);
1295 mdt_lock_reg_init(lh_newp, LCK_EX);
1296 mnew = mdt_object_find(info->mti_env, info->mti_mdt, new_fid);
1298 GOTO(out_unlock_old, rc = PTR_ERR(mnew));
1300 if (mdt_object_remote(mnew)) {
1301 mdt_object_put(info->mti_env, mnew);
1302 CDEBUG(D_INFO, "src child "DFID" is on another MDT\n",
1304 GOTO(out_unlock_old, rc = -EXDEV);
1307 /* We used to acquire MDS_INODELOCK_FULL here but we
1308 * can't do this now because a running HSM restore on
1309 * the rename onto victim will hold the layout
1310 * lock. See LU-4002. */
1311 rc = mdt_object_lock(info, mnew, lh_newp,
1312 MDS_INODELOCK_LOOKUP |
1313 MDS_INODELOCK_UPDATE,
1316 mdt_object_put(info->mti_env, mnew);
1317 GOTO(out_unlock_old, rc);
1319 /* get and save version after locking */
1320 mdt_version_get_save(info, mnew, 3);
1321 mdt_set_capainfo(info, 3, new_fid, BYPASS_CAPA);
1322 } else if (rc != -EREMOTE && rc != -ENOENT) {
1323 GOTO(out_unlock_old, rc);
1325 /* If mnew does not exist and mold are remote directory,
1326 * it only allows rename if they are under same directory */
1327 if (mtgtdir != msrcdir && mdt_object_remote(mold)) {
1328 CDEBUG(D_INFO, "Src child "DFID" is on another MDT\n",
1330 GOTO(out_unlock_old, rc = -EXDEV);
1332 mdt_enoent_version_save(info, 3);
1335 /* step 5: rename it */
1336 mdt_reint_init_ma(info, ma);
1338 mdt_fail_write(info->mti_env, info->mti_mdt->mdt_bottom,
1339 OBD_FAIL_MDS_REINT_RENAME_WRITE);
1341 /* Check if @dst is subdir of @src. */
1342 rc = mdt_rename_sanity(info, old_fid);
1344 GOTO(out_unlock_new, rc);
1347 mutex_lock(&mnew->mot_lov_mutex);
1349 rc = mdo_rename(info->mti_env, mdt_object_child(msrcdir),
1350 mdt_object_child(mtgtdir), old_fid, &rr->rr_name,
1351 mnew != NULL ? mdt_object_child(mnew) : NULL,
1352 &rr->rr_tgt_name, ma);
1355 mutex_unlock(&mnew->mot_lov_mutex);
1357 /* handle last link of tgt object */
1359 mdt_counter_incr(req, LPROC_MDT_RENAME);
1361 mdt_handle_last_unlink(info, mnew, ma);
1363 mdt_rename_counter_tally(info, info->mti_mdt, req,
1370 mdt_object_unlock_put(info, mnew, lh_newp, rc);
1372 mdt_object_unlock_put(info, mold, lh_oldp, rc);
1374 mdt_object_unlock(info, mtgtdir, lh_tgtdirp, rc);
1376 mdt_object_put(info->mti_env, mtgtdir);
1378 mdt_object_unlock_put(info, msrcdir, lh_srcdirp, rc);
1380 if (lustre_handle_is_used(&rename_lh))
1381 mdt_rename_unlock(&rename_lh);
1385 typedef int (*mdt_reinter)(struct mdt_thread_info *info,
1386 struct mdt_lock_handle *lhc);
1388 static mdt_reinter reinters[REINT_MAX] = {
1389 [REINT_SETATTR] = mdt_reint_setattr,
1390 [REINT_CREATE] = mdt_reint_create,
1391 [REINT_LINK] = mdt_reint_link,
1392 [REINT_UNLINK] = mdt_reint_unlink,
1393 [REINT_RENAME] = mdt_reint_rename,
1394 [REINT_OPEN] = mdt_reint_open,
1395 [REINT_SETXATTR] = mdt_reint_setxattr,
1396 [REINT_RMENTRY] = mdt_reint_unlink
1399 int mdt_reint_rec(struct mdt_thread_info *info,
1400 struct mdt_lock_handle *lhc)
1405 rc = reinters[info->mti_rr.rr_opcode](info, lhc);