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/mdd/mdd_internal.h
38 * Author: Wang Di <wangdi@clusterfs.com>
41 #ifndef _MDD_INTERNAL_H
42 #define _MDD_INTERNAL_H
44 #include <lustre_acl.h>
45 #include <lustre_eacl.h>
46 #include <md_object.h>
47 #include <dt_object.h>
48 #include <lustre_lfsck.h>
49 #include <lustre_fid.h>
50 #include <lustre_capa.h>
51 #include <lprocfs_status.h>
52 #include <lustre_log.h>
53 #include <lustre_linkea.h>
56 /** changelog is recording */
57 #define CLM_ON 0x00001
58 /** internal error prevented changelogs from starting */
59 #define CLM_ERR 0x00002
61 /** changelogs turned on */
62 #define CLM_START 0x10000
63 /** changelogs turned off */
64 #define CLM_FINI 0x20000
65 /** some changelog records purged */
66 #define CLM_PURGE 0x40000
68 struct mdd_changelog {
69 spinlock_t mc_lock; /* for index */
74 spinlock_t mc_user_lock;
78 static inline __u64 cl_time(void) {
81 cfs_fs_time_current(&time);
82 return (((__u64)time.tv_sec) << 30) + time.tv_nsec;
85 /** Objects in .lustre dir */
86 struct mdd_dot_lustre_objs {
87 struct mdd_object *mdd_obf;
88 struct mdd_object *mdd_lpf;
91 struct mdd_generic_thread {
92 struct completion mgt_started;
93 struct completion mgt_finished;
100 struct md_device mdd_md_dev;
101 struct obd_export *mdd_child_exp;
102 struct dt_device *mdd_child;
103 struct dt_device *mdd_bottom;
104 struct lu_fid mdd_root_fid; /* /ROOT */
105 struct lu_fid mdd_local_root_fid;
106 struct dt_device_param mdd_dt_conf;
107 struct dt_object *mdd_orphans; /* PENDING directory */
108 struct proc_dir_entry *mdd_proc_entry;
109 struct mdd_changelog mdd_cl;
110 unsigned long mdd_atime_diff;
111 struct mdd_object *mdd_dot_lustre;
112 struct mdd_dot_lustre_objs mdd_dot_lustre_objs;
113 unsigned int mdd_sync_permission;
115 struct local_oid_storage *mdd_los;
116 struct mdd_generic_thread mdd_orph_cleanup_thread;
120 /* The dir object has been unlinked */
128 struct md_object mod_obj;
133 unsigned long mod_flags;
136 struct mdd_thread_info {
137 struct lu_fid mti_fid;
138 struct lu_fid mti_fid2; /* used for be & cpu converting */
140 * only be used by MDD interfaces, can be passed into local MDD APIs.
142 struct lu_attr mti_pattr;
143 struct lu_attr mti_cattr;
144 struct lu_attr mti_tpattr;
145 struct lu_attr mti_tattr;
146 /** used to set c/mtime */
147 struct lu_attr mti_la_for_fix;
148 /* Only used in mdd_object_start */
149 struct lu_attr mti_la_for_start;
150 /* mti_ent and mti_key must be conjoint,
151 * then mti_ent::lde_name will be mti_key. */
152 struct lu_dirent mti_ent;
153 char mti_key[NAME_MAX + 16];
154 struct lu_buf mti_buf[4];
155 struct lu_buf mti_big_buf; /* biggish persistent buf */
156 struct lu_buf mti_link_buf; /* buf for link ea */
158 char mti_xattr_buf[LUSTRE_POSIX_ACL_MAX_SIZE];
159 struct dt_allocation_hint mti_hint;
160 struct dt_object_format mti_dof;
161 struct linkea_data mti_link_data;
162 struct md_op_spec mti_spec;
163 struct dt_insert_rec mti_dt_rec;
166 extern const char orph_index_name[];
168 int mdd_la_get(const struct lu_env *env, struct mdd_object *obj,
169 struct lu_attr *la, struct lustre_capa *capa);
170 void mdd_flags_xlate(struct mdd_object *obj, __u32 flags);
171 int mdd_attr_get(const struct lu_env *env, struct md_object *obj,
173 int mdd_attr_set(const struct lu_env *env, struct md_object *obj,
174 const struct md_attr *ma);
175 int mdd_attr_set_internal(const struct lu_env *env,
176 struct mdd_object *obj,
177 const struct lu_attr *attr,
178 struct thandle *handle,
180 int mdd_update_time(const struct lu_env *env, struct mdd_object *obj,
181 const struct lu_attr *oattr, struct lu_attr *attr,
182 struct thandle *handle);
183 int mdd_object_create_internal(const struct lu_env *env, struct mdd_object *p,
184 struct mdd_object *c, struct lu_attr *attr,
185 struct thandle *handle,
186 const struct md_op_spec *spec,
187 struct dt_allocation_hint *hint);
190 void mdd_write_lock(const struct lu_env *env, struct mdd_object *obj,
191 enum mdd_object_role role);
192 void mdd_read_lock(const struct lu_env *env, struct mdd_object *obj,
193 enum mdd_object_role role);
194 void mdd_write_unlock(const struct lu_env *env, struct mdd_object *obj);
195 void mdd_read_unlock(const struct lu_env *env, struct mdd_object *obj);
196 int mdd_write_locked(const struct lu_env *env, struct mdd_object *obj);
199 int mdd_is_subdir(const struct lu_env *env, struct md_object *mo,
200 const struct lu_fid *fid, struct lu_fid *sfid);
201 int mdd_may_create(const struct lu_env *env, struct mdd_object *pobj,
202 const struct lu_attr *pattr, struct mdd_object *cobj,
204 int mdd_may_unlink(const struct lu_env *env, struct mdd_object *pobj,
205 const struct lu_attr *pattr, const struct lu_attr *attr);
206 int mdd_may_delete(const struct lu_env *env, struct mdd_object *tpobj,
207 const struct lu_attr *tpattr, struct mdd_object *tobj,
208 const struct lu_attr *tattr, const struct lu_attr *cattr,
209 int check_perm, int check_empty);
210 int mdd_unlink_sanity_check(const struct lu_env *env, struct mdd_object *pobj,
211 const struct lu_attr *pattr,
212 struct mdd_object *cobj,
213 const struct lu_attr *cattr);
214 int mdd_finish_unlink(const struct lu_env *env, struct mdd_object *obj,
215 struct md_attr *ma, const struct mdd_object *pobj,
216 const struct lu_name *lname, struct thandle *th);
218 int mdd_is_root(struct mdd_device *mdd, const struct lu_fid *fid);
219 int mdd_lookup(const struct lu_env *env,
220 struct md_object *pobj, const struct lu_name *lname,
221 struct lu_fid* fid, struct md_op_spec *spec);
222 int mdd_links_read(const struct lu_env *env, struct mdd_object *mdd_obj,
223 struct linkea_data *ldata);
224 int mdd_declare_links_add(const struct lu_env *env, struct mdd_object *mdd_obj,
225 struct thandle *handle, struct linkea_data *ldata);
226 int mdd_links_write(const struct lu_env *env, struct mdd_object *mdd_obj,
227 struct linkea_data *ldata, struct thandle *handle);
228 struct lu_buf *mdd_links_get(const struct lu_env *env,
229 struct mdd_object *mdd_obj);
230 int mdd_links_rename(const struct lu_env *env,
231 struct mdd_object *mdd_obj,
232 const struct lu_fid *oldpfid,
233 const struct lu_name *oldlname,
234 const struct lu_fid *newpfid,
235 const struct lu_name *newlname,
236 struct thandle *handle,
237 struct linkea_data *ldata,
238 int first, int check);
240 struct mdd_thread_info *mdd_env_info(const struct lu_env *env);
242 #define MDD_ENV_VAR(env, var) (&mdd_env_info(env)->mti_##var)
244 struct lu_buf *mdd_buf_get(const struct lu_env *env, void *area, ssize_t len);
245 const struct lu_buf *mdd_buf_get_const(const struct lu_env *env,
246 const void *area, ssize_t len);
248 int mdd_orphan_cleanup(const struct lu_env *env, struct mdd_device *d);
249 int __mdd_orphan_add(const struct lu_env *, struct mdd_object *,
251 int __mdd_orphan_del(const struct lu_env *, struct mdd_object *,
253 int orph_index_init(const struct lu_env *env, struct mdd_device *mdd);
254 void orph_index_fini(const struct lu_env *env, struct mdd_device *mdd);
255 int orph_declare_index_insert(const struct lu_env *, struct mdd_object *,
256 umode_t mode, struct thandle *);
257 int orph_declare_index_delete(const struct lu_env *, struct mdd_object *,
261 int mdd_procfs_init(struct mdd_device *mdd, const char *name);
262 void mdd_procfs_fini(struct mdd_device *mdd);
265 extern struct kmem_cache *mdd_object_kmem;
266 extern const struct md_dir_operations mdd_dir_ops;
267 extern const struct md_object_operations mdd_obj_ops;
268 int mdd_readlink(const struct lu_env *env, struct md_object *obj,
270 int accmode(const struct lu_env *env, const struct lu_attr *la, int flags);
271 extern struct lu_context_key mdd_thread_key;
272 extern const struct lu_device_operations mdd_lu_ops;
274 struct mdd_object *mdd_object_find(const struct lu_env *env,
275 struct mdd_device *d,
276 const struct lu_fid *f);
277 int mdd_readpage(const struct lu_env *env, struct md_object *obj,
278 const struct lu_rdpg *rdpg);
279 int mdd_declare_changelog_store(const struct lu_env *env,
280 struct mdd_device *mdd,
281 const struct lu_name *tname,
282 const struct lu_name *sname,
283 struct thandle *handle);
284 void mdd_changelog_rec_ext_jobid(struct changelog_rec *rec, const char *jobid);
285 int mdd_changelog_store(const struct lu_env *env, struct mdd_device *mdd,
286 struct llog_changelog_rec *rec, struct thandle *th);
287 int mdd_changelog_data_store(const struct lu_env *env, struct mdd_device *mdd,
288 enum changelog_rec_type type, int flags,
289 struct mdd_object *mdd_obj,
290 struct thandle *handle);
291 int mdd_changelog_ns_store(const struct lu_env *env, struct mdd_device *mdd,
292 enum changelog_rec_type type,
293 enum changelog_rec_flags crf,
294 struct mdd_object *target,
295 const struct lu_fid *tpfid,
296 const struct lu_fid *sfid,
297 const struct lu_fid *spfid,
298 const struct lu_name *tname,
299 const struct lu_name *sname,
300 struct thandle *handle);
301 int mdd_declare_object_create_internal(const struct lu_env *env,
302 struct mdd_object *p,
303 struct mdd_object *c,
304 struct lu_attr *attr,
305 struct thandle *handle,
306 const struct md_op_spec *spec,
307 struct dt_allocation_hint *hint);
308 int mdd_get_lov_ea(const struct lu_env *env, struct mdd_object *obj,
309 struct lu_buf *lmm_buf);
312 void mdd_object_make_hint(const struct lu_env *env, struct mdd_object *parent,
313 struct mdd_object *child, const struct lu_attr *attr,
314 const struct md_op_spec *spec,
315 struct dt_allocation_hint *hint);
317 static inline void mdd_object_get(struct mdd_object *o)
319 lu_object_get(&o->mod_obj.mo_lu);
322 static inline void mdd_object_put(const struct lu_env *env,
323 struct mdd_object *o)
325 lu_object_put(env, &o->mod_obj.mo_lu);
328 struct thandle *mdd_trans_create(const struct lu_env *env,
329 struct mdd_device *mdd);
330 int mdd_trans_start(const struct lu_env *env, struct mdd_device *mdd,
332 int mdd_trans_stop(const struct lu_env *env, struct mdd_device *mdd,
333 int rc, struct thandle *handle);
336 struct lu_object *mdd_object_alloc(const struct lu_env *env,
337 const struct lu_object_header *hdr,
338 struct lu_device *d);
339 int mdd_local_file_create(const struct lu_env *env, struct mdd_device *mdd,
340 const struct lu_fid *pfid, const char *name,
341 __u32 mode, struct lu_fid *fid);
343 int mdd_acl_chmod(const struct lu_env *env, struct mdd_object *o, __u32 mode,
344 struct thandle *handle);
345 int mdd_acl_set(const struct lu_env *env, struct mdd_object *obj,
346 struct lu_attr *attr, const struct lu_buf *buf, int fl);
347 int __mdd_fix_mode_acl(const struct lu_env *env, struct lu_buf *buf,
349 int __mdd_permission_internal(const struct lu_env *env, struct mdd_object *obj,
350 const struct lu_attr *la, int mask, int role);
351 int mdd_permission(const struct lu_env *env,
352 struct md_object *pobj, struct md_object *cobj,
353 struct md_attr *ma, int mask);
354 int mdd_capa_get(const struct lu_env *env, struct md_object *obj,
355 struct lustre_capa *capa, int renewal);
356 int mdd_generic_thread_start(struct mdd_generic_thread *thread,
357 int (*func)(void *), void *data, char *name);
358 void mdd_generic_thread_stop(struct mdd_generic_thread *thread);
361 int mdd_compat_fixes(const struct lu_env *env, struct mdd_device *mdd);
363 /* inline functions */
364 static inline int lu_device_is_mdd(struct lu_device *d)
366 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &mdd_lu_ops);
369 static inline struct mdd_device* lu2mdd_dev(struct lu_device *d)
371 LASSERT(lu_device_is_mdd(d));
372 return container_of0(d, struct mdd_device, mdd_md_dev.md_lu_dev);
375 static inline struct lu_device *mdd2lu_dev(struct mdd_device *d)
377 return (&d->mdd_md_dev.md_lu_dev);
380 static inline struct mdd_object *lu2mdd_obj(struct lu_object *o)
382 LASSERT(ergo(o != NULL, lu_device_is_mdd(o->lo_dev)));
383 return container_of0(o, struct mdd_object, mod_obj.mo_lu);
386 static inline struct mdd_device* mdo2mdd(struct md_object *mdo)
388 return lu2mdd_dev(mdo->mo_lu.lo_dev);
391 static inline struct mdd_object* md2mdd_obj(struct md_object *mdo)
393 return container_of0(mdo, struct mdd_object, mod_obj);
396 static inline const struct dt_device_operations *
397 mdd_child_ops(struct mdd_device *d)
399 return d->mdd_child->dd_ops;
402 static inline struct lu_object *mdd2lu_obj(struct mdd_object *obj)
404 return &obj->mod_obj.mo_lu;
407 static inline struct dt_object* mdd_object_child(struct mdd_object *o)
409 return container_of0(lu_object_next(mdd2lu_obj(o)),
410 struct dt_object, do_lu);
413 static inline struct obd_device *mdd2obd_dev(struct mdd_device *mdd)
415 return (mdd->mdd_md_dev.md_lu_dev.ld_obd);
418 static inline struct mdd_device *mdd_obj2mdd_dev(struct mdd_object *obj)
420 return mdo2mdd(&obj->mod_obj);
423 static inline const struct lu_fid *mdo2fid(const struct mdd_object *obj)
425 return lu_object_fid(&obj->mod_obj.mo_lu);
428 static inline umode_t mdd_object_type(const struct mdd_object *obj)
430 return lu_object_attr(&obj->mod_obj.mo_lu);
433 static inline int mdd_is_immutable(struct mdd_object *obj)
435 return obj->mod_flags & IMMUTE_OBJ;
438 static inline int mdd_is_dead_obj(struct mdd_object *obj)
440 return obj && obj->mod_flags & DEAD_OBJ;
443 static inline int mdd_is_append(struct mdd_object *obj)
445 return obj->mod_flags & APPEND_OBJ;
448 static inline int mdd_object_exists(struct mdd_object *obj)
450 return lu_object_exists(mdd2lu_obj(obj));
453 static inline int mdd_object_remote(struct mdd_object *obj)
455 return lu_object_remote(mdd2lu_obj(obj));
458 static inline const struct lu_fid *mdd_object_fid(struct mdd_object *obj)
460 return lu_object_fid(mdd2lu_obj(obj));
463 static inline struct seq_server_site *mdd_seq_site(struct mdd_device *mdd)
465 return mdd2lu_dev(mdd)->ld_site->ld_seq_site;
468 static inline struct lustre_capa *mdd_object_capa(const struct lu_env *env,
469 const struct mdd_object *obj)
471 struct lu_capainfo *lci = lu_capainfo_get(env);
472 const struct lu_fid *fid = mdo2fid(obj);
475 /* NB: in mdt_init0 */
479 for (i = 0; i < LU_CAPAINFO_MAX; i++)
480 if (lu_fid_eq(&lci->lci_fid[i], fid))
481 return lci->lci_capa[i];
485 static inline void mdd_set_capainfo(const struct lu_env *env, int offset,
486 const struct mdd_object *obj,
487 struct lustre_capa *capa)
489 struct lu_capainfo *lci = lu_capainfo_get(env);
490 const struct lu_fid *fid = mdo2fid(obj);
492 LASSERT(offset >= 0 && offset < LU_CAPAINFO_MAX);
493 /* NB: in mdt_init0 */
497 lci->lci_fid[offset] = *fid;
498 lci->lci_capa[offset] = capa;
501 static inline const char *mdd_obj_dev_name(const struct mdd_object *obj)
503 return lu_dev_name(obj->mod_obj.mo_lu.lo_dev);
506 #define MAX_ATIME_DIFF 60
508 static inline int mdd_permission_internal(const struct lu_env *env,
509 struct mdd_object *obj,
510 const struct lu_attr *la, int mask)
512 return __mdd_permission_internal(env, obj, la, mask, -1);
515 static inline int mdd_permission_internal_locked(const struct lu_env *env,
516 struct mdd_object *obj,
517 const struct lu_attr *la,
519 enum mdd_object_role role)
521 return __mdd_permission_internal(env, obj, la, mask, role);
524 /* mdd inline func for calling osd_dt_object ops */
525 static inline int mdo_attr_get(const struct lu_env *env, struct mdd_object *obj,
526 struct lu_attr *la, struct lustre_capa *capa)
528 struct dt_object *next = mdd_object_child(obj);
529 return dt_attr_get(env, next, la, capa);
532 static inline int mdo_declare_attr_set(const struct lu_env *env,
533 struct mdd_object *obj,
534 const struct lu_attr *la,
535 struct thandle *handle)
537 struct dt_object *next = mdd_object_child(obj);
538 return dt_declare_attr_set(env, next, la, handle);
541 static inline int mdo_attr_set(const struct lu_env *env,
542 struct mdd_object *obj,
543 const struct lu_attr *la,
544 struct thandle *handle,
545 struct lustre_capa *capa)
547 struct dt_object *next = mdd_object_child(obj);
549 if (!mdd_object_exists(obj))
552 return dt_attr_set(env, next, la, handle, capa);
555 static inline int mdo_xattr_get(const struct lu_env *env,struct mdd_object *obj,
556 struct lu_buf *buf, const char *name,
557 struct lustre_capa *capa)
559 struct dt_object *next = mdd_object_child(obj);
560 return dt_xattr_get(env, next, buf, name, capa);
563 static inline int mdo_declare_xattr_set(const struct lu_env *env,
564 struct mdd_object *obj,
565 const struct lu_buf *buf,
567 int fl, struct thandle *handle)
569 struct dt_object *next = mdd_object_child(obj);
570 return dt_declare_xattr_set(env, next, buf, name, fl, handle);
573 static inline int mdo_xattr_set(const struct lu_env *env,struct mdd_object *obj,
574 const struct lu_buf *buf, const char *name,
575 int fl, struct thandle *handle,
576 struct lustre_capa *capa)
578 struct dt_object *next = mdd_object_child(obj);
580 if (!mdd_object_exists(obj))
583 return dt_xattr_set(env, next, buf, name, fl, handle, capa);
586 static inline int mdo_declare_xattr_del(const struct lu_env *env,
587 struct mdd_object *obj,
589 struct thandle *handle)
591 struct dt_object *next = mdd_object_child(obj);
592 return dt_declare_xattr_del(env, next, name, handle);
595 static inline int mdo_xattr_del(const struct lu_env *env,struct mdd_object *obj,
596 const char *name, struct thandle *handle,
597 struct lustre_capa *capa)
599 struct dt_object *next = mdd_object_child(obj);
601 if (!mdd_object_exists(obj))
604 return dt_xattr_del(env, next, name, handle, capa);
608 mdo_xattr_list(const struct lu_env *env, struct mdd_object *obj,
609 struct lu_buf *buf, struct lustre_capa *capa)
611 struct dt_object *next = mdd_object_child(obj);
613 if (!mdd_object_exists(obj))
616 return dt_xattr_list(env, next, buf, capa);
620 int mdo_declare_index_insert(const struct lu_env *env, struct mdd_object *obj,
621 const struct lu_fid *fid, __u32 type,
622 const char *name, struct thandle *handle)
624 struct dt_object *next = mdd_object_child(obj);
628 * if the object doesn't exist yet, then it's supposed to be created
629 * and declaration of the creation should be enough to insert ./..
632 /* FIXME: remote object should not be awared by MDD layer, but local
633 * creation does not declare insert ./.. (comments above), which
634 * is required by remote directory creation.
635 * This remote check should be removed when mdd_object_exists check is
638 if (mdd_object_exists(obj) || mdd_object_remote(obj)) {
640 if (dt_try_as_dir(env, next)) {
641 struct dt_insert_rec *rec =
642 &mdd_env_info(env)->mti_dt_rec;
645 rec->rec_type = type;
646 rc = dt_declare_insert(env, next,
647 (const struct dt_rec *)rec,
648 (const struct dt_key *)name,
657 int mdo_declare_index_delete(const struct lu_env *env, struct mdd_object *obj,
658 const char *name, struct thandle *handle)
660 struct dt_object *next = mdd_object_child(obj);
662 if (!dt_try_as_dir(env, next))
665 return dt_declare_delete(env, next, (const struct dt_key *)name,
669 static inline int mdo_declare_ref_add(const struct lu_env *env,
670 struct mdd_object *obj,
671 struct thandle *handle)
673 struct dt_object *next = mdd_object_child(obj);
674 return dt_declare_ref_add(env, next, handle);
677 static inline int mdo_ref_add(const struct lu_env *env, struct mdd_object *obj,
678 struct thandle *handle)
680 struct dt_object *next = mdd_object_child(obj);
682 if (!mdd_object_exists(obj))
685 return dt_ref_add(env, next, handle);
688 static inline int mdo_declare_ref_del(const struct lu_env *env,
689 struct mdd_object *obj,
690 struct thandle *handle)
692 struct dt_object *next = mdd_object_child(obj);
693 return dt_declare_ref_del(env, next, handle);
696 static inline int mdo_ref_del(const struct lu_env *env, struct mdd_object *obj,
697 struct thandle *handle)
699 struct dt_object *next = mdd_object_child(obj);
701 if (!mdd_object_exists(obj))
704 return dt_ref_del(env, next, handle);
708 mdo_declare_create_obj(const struct lu_env *env, struct mdd_object *o,
709 struct lu_attr *attr,
710 struct dt_allocation_hint *hint,
711 struct dt_object_format *dof,
712 struct thandle *handle)
714 struct dt_object *next = mdd_object_child(o);
715 return dt_declare_create(env, next, attr, hint, dof, handle);
719 mdo_create_obj(const struct lu_env *env, struct mdd_object *o,
720 struct lu_attr *attr,
721 struct dt_allocation_hint *hint,
722 struct dt_object_format *dof,
723 struct thandle *handle)
725 struct dt_object *next = mdd_object_child(o);
726 return dt_create(env, next, attr, hint, dof, handle);
730 int mdo_declare_destroy(const struct lu_env *env, struct mdd_object *o,
731 struct thandle *handle)
733 struct dt_object *next = mdd_object_child(o);
734 return dt_declare_destroy(env, next, handle);
738 int mdo_destroy(const struct lu_env *env, struct mdd_object *o,
739 struct thandle *handle)
741 struct dt_object *next = mdd_object_child(o);
742 return dt_destroy(env, next, handle);
745 static inline struct obd_capa *
746 mdo_capa_get(const struct lu_env *env, struct mdd_object *obj,
747 struct lustre_capa *old, __u64 opc)
749 struct dt_object *next = mdd_object_child(obj);
751 if (!mdd_object_exists(obj))
752 return ERR_PTR(-ENOENT);
754 return dt_capa_get(env, next, old, opc);