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.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/mdd/mdd_internal.h
34 * Author: Wang Di <wangdi@clusterfs.com>
37 #ifndef _MDD_INTERNAL_H
38 #define _MDD_INTERNAL_H
40 #include <lustre_acl.h>
41 #include <lustre_compat.h>
42 #include <lustre_eacl.h>
43 #include <md_object.h>
44 #include <dt_object.h>
45 #include <lustre_lfsck.h>
46 #include <lustre_fid.h>
47 #include <lprocfs_status.h>
48 #include <lustre_log.h>
49 #include <lustre_linkea.h>
51 /* ChangeLog params for automatic purge mechanism */
52 /* max time allowed for a user to stay idle in seconds */
53 #define CHLOG_MAX_IDLE_TIME 2592000 /* = 30 days */
54 /* max gap allowed for a user to stay idle in number of ChangeLog records
55 * this is an evaluation, assuming that chunk-size is LLOG_MIN_CHUNK_SIZE, of
56 * the indexes gap for half full changelogs */
57 #define CHLOG_MAX_IDLE_INDEXES (((LLOG_MIN_CHUNK_SIZE - \
58 offsetof(struct llog_log_hdr, \
60 sizeof(struct llog_rec_tail)) * 4) * \
61 ((LLOG_MIN_CHUNK_SIZE - \
62 offsetof(struct llog_log_hdr, \
64 sizeof(struct llog_rec_tail)) * 8))
65 /* min time in seconds between two gc thread runs if none already started */
66 #define CHLOG_MIN_GC_INTERVAL 3600
67 /* minimum number of free ChangeLog catalog entries (ie, between cur and
68 * last indexes) before starting garbage collect */
69 #define CHLOG_MIN_FREE_CAT_ENTRIES 2
72 /** changelog is recording */
73 #define CLM_ON 0x00001
74 /** internal error prevented changelogs from starting */
75 #define CLM_ERR 0x00002
77 /** changelogs turned on */
78 #define CLM_START 0x10000
79 /** changelogs turned off */
80 #define CLM_FINI 0x20000
81 /** some changelog records purged */
82 #define CLM_PURGE 0x40000
84 #define LLOG_CHANGELOG_HDR_SZ (sizeof(struct llog_changelog_rec) - \
85 sizeof(struct changelog_rec))
87 struct mdd_changelog {
88 spinlock_t mc_lock; /* for index */
93 spinlock_t mc_user_lock;
95 struct task_struct *mc_gc_task;
99 static inline __u64 cl_time(void)
101 struct timespec64 time;
103 ktime_get_real_ts64(&time);
104 return (((__u64)time.tv_sec) << 30) + time.tv_nsec;
107 /** Objects in .lustre dir */
108 struct mdd_dot_lustre_objs {
109 struct mdd_object *mdd_obf;
110 struct mdd_object *mdd_lpf;
113 struct mdd_generic_thread {
114 struct completion mgt_started;
115 struct completion mgt_finished;
122 struct md_device mdd_md_dev;
123 struct obd_export *mdd_child_exp;
124 struct dt_device *mdd_child;
125 struct dt_device *mdd_bottom;
126 struct lu_fid mdd_root_fid; /* /ROOT */
127 struct lu_fid mdd_local_root_fid;
128 struct dt_device_param mdd_dt_conf;
129 struct dt_object *mdd_orphans; /* PENDING directory */
130 struct proc_dir_entry *mdd_proc_entry;
131 struct mdd_changelog mdd_cl;
132 unsigned int mdd_changelog_gc;
133 unsigned int mdd_changelog_max_idle_time;
134 unsigned long mdd_changelog_max_idle_indexes;
135 unsigned int mdd_changelog_min_gc_interval;
136 unsigned int mdd_changelog_min_free_cat_entries;
137 unsigned long mdd_atime_diff;
138 struct mdd_object *mdd_dot_lustre;
139 struct mdd_dot_lustre_objs mdd_dot_lustre_objs;
140 unsigned int mdd_sync_permission;
142 struct local_oid_storage *mdd_los;
143 struct mdd_generic_thread mdd_orph_cleanup_thread;
147 /* The dir object has been unlinked */
150 VOLATILE_OBJ = 1 << 4,
154 struct md_object mod_obj;
159 unsigned long mod_flags;
160 struct list_head mod_users; /**< unique user opens */
163 struct mdd_thread_info {
164 struct lu_fid mti_fid;
165 struct lu_fid mti_fid2; /* used for be & cpu converting */
167 * only be used by MDD interfaces, can be passed into local MDD APIs.
169 struct lu_attr mti_pattr;
170 struct lu_attr mti_cattr;
171 struct lu_attr mti_tpattr;
172 struct lu_attr mti_tattr;
173 /** used to set c/mtime */
174 struct lu_attr mti_la_for_fix;
175 /* Only used in mdd_object_start */
176 struct lu_attr mti_la_for_start;
177 /* mti_ent and mti_key must be conjoint,
178 * then mti_ent::lde_name will be mti_key. */
179 struct lu_dirent mti_ent;
180 char mti_key[NAME_MAX + 16];
181 struct lu_buf mti_buf[4];
182 struct lu_buf mti_big_buf; /* biggish persistent buf */
183 struct lu_buf mti_link_buf; /* buf for link ea */
184 struct lu_buf mti_xattr_buf;
186 struct dt_allocation_hint mti_hint;
187 struct dt_object_format mti_dof;
188 struct linkea_data mti_link_data;
189 struct md_op_spec mti_spec;
190 struct dt_insert_rec mti_dt_rec;
191 struct lfsck_req_local mti_lrl;
192 struct lu_seq_range mti_range;
195 extern const char orph_index_name[];
197 int mdd_la_get(const struct lu_env *env, struct mdd_object *obj,
199 int mdd_attr_get(const struct lu_env *env, struct md_object *obj,
201 int mdd_attr_set(const struct lu_env *env, struct md_object *obj,
202 const struct md_attr *ma);
203 int mdd_attr_set_internal(const struct lu_env *env,
204 struct mdd_object *obj,
205 const struct lu_attr *attr,
206 struct thandle *handle,
208 int mdd_update_time(const struct lu_env *env, struct mdd_object *obj,
209 const struct lu_attr *oattr, struct lu_attr *attr,
210 struct thandle *handle);
211 int mdd_create_object_internal(const struct lu_env *env, struct mdd_object *p,
212 struct mdd_object *c, struct lu_attr *attr,
213 struct thandle *handle,
214 const struct md_op_spec *spec,
215 struct dt_allocation_hint *hint);
218 void mdd_write_lock(const struct lu_env *env, struct mdd_object *obj,
219 enum mdd_object_role role);
220 void mdd_read_lock(const struct lu_env *env, struct mdd_object *obj,
221 enum mdd_object_role role);
222 void mdd_write_unlock(const struct lu_env *env, struct mdd_object *obj);
223 void mdd_read_unlock(const struct lu_env *env, struct mdd_object *obj);
224 int mdd_write_locked(const struct lu_env *env, struct mdd_object *obj);
227 int mdd_is_subdir(const struct lu_env *env, struct md_object *mo,
228 const struct lu_fid *fid, struct lu_fid *sfid);
229 int mdd_may_create(const struct lu_env *env, struct mdd_object *pobj,
230 const struct lu_attr *pattr, struct mdd_object *cobj,
232 int mdd_may_unlink(const struct lu_env *env, struct mdd_object *pobj,
233 const struct lu_attr *pattr, const struct lu_attr *attr);
234 int mdd_may_delete(const struct lu_env *env, struct mdd_object *tpobj,
235 const struct lu_attr *tpattr, struct mdd_object *tobj,
236 const struct lu_attr *tattr, const struct lu_attr *cattr,
237 int check_perm, int check_empty);
238 int mdd_unlink_sanity_check(const struct lu_env *env, struct mdd_object *pobj,
239 const struct lu_attr *pattr,
240 struct mdd_object *cobj,
241 const struct lu_attr *cattr);
242 int mdd_finish_unlink(const struct lu_env *env, struct mdd_object *obj,
243 struct md_attr *ma, const struct mdd_object *pobj,
244 const struct lu_name *lname, struct thandle *th);
246 int mdd_is_root(struct mdd_device *mdd, const struct lu_fid *fid);
247 int mdd_lookup(const struct lu_env *env,
248 struct md_object *pobj, const struct lu_name *lname,
249 struct lu_fid* fid, struct md_op_spec *spec);
250 int mdd_links_write(const struct lu_env *env, struct mdd_object *mdd_obj,
251 struct linkea_data *ldata, struct thandle *handle);
252 struct lu_buf *mdd_links_get(const struct lu_env *env,
253 struct mdd_object *mdd_obj);
254 int mdd_links_rename(const struct lu_env *env,
255 struct mdd_object *mdd_obj,
256 const struct lu_fid *oldpfid,
257 const struct lu_name *oldlname,
258 const struct lu_fid *newpfid,
259 const struct lu_name *newlname,
260 struct thandle *handle,
261 struct linkea_data *ldata,
262 int first, int check);
264 struct mdd_thread_info *mdd_env_info(const struct lu_env *env);
266 #define MDD_ENV_VAR(env, var) (&mdd_env_info(env)->mti_##var)
268 struct lu_buf *mdd_buf_get(const struct lu_env *env, void *area, ssize_t len);
269 const struct lu_buf *mdd_buf_get_const(const struct lu_env *env,
270 const void *area, ssize_t len);
272 int mdd_orphan_cleanup(const struct lu_env *env, struct mdd_device *d);
273 int __mdd_orphan_add(const struct lu_env *, struct mdd_object *,
275 int __mdd_orphan_del(const struct lu_env *, struct mdd_object *,
277 int orph_index_init(const struct lu_env *env, struct mdd_device *mdd);
278 void orph_index_fini(const struct lu_env *env, struct mdd_device *mdd);
279 int orph_declare_index_insert(const struct lu_env *, struct mdd_object *,
280 umode_t mode, struct thandle *);
281 int orph_declare_index_delete(const struct lu_env *, struct mdd_object *,
285 int mdd_procfs_init(struct mdd_device *mdd, const char *name);
286 void mdd_procfs_fini(struct mdd_device *mdd);
289 extern struct kmem_cache *mdd_object_kmem;
290 extern const struct md_dir_operations mdd_dir_ops;
291 extern const struct md_object_operations mdd_obj_ops;
292 int mdd_readlink(const struct lu_env *env, struct md_object *obj,
294 int accmode(const struct lu_env *env, const struct lu_attr *la, int flags);
295 extern struct lu_context_key mdd_thread_key;
296 extern const struct lu_device_operations mdd_lu_ops;
298 struct mdd_object *mdd_object_find(const struct lu_env *env,
299 struct mdd_device *d,
300 const struct lu_fid *f);
301 int mdd_readpage(const struct lu_env *env, struct md_object *obj,
302 const struct lu_rdpg *rdpg);
303 int mdd_declare_changelog_store(const struct lu_env *env,
304 struct mdd_device *mdd,
305 const struct lu_name *tname,
306 const struct lu_name *sname,
307 struct thandle *handle);
308 void mdd_changelog_rec_ext_jobid(struct changelog_rec *rec, const char *jobid);
309 void mdd_changelog_rec_ext_extra_flags(struct changelog_rec *rec, __u64 eflags);
310 void mdd_changelog_rec_extra_uidgid(struct changelog_rec *rec,
311 __u64 uid, __u64 gid);
312 void mdd_changelog_rec_extra_nid(struct changelog_rec *rec,
314 void mdd_changelog_rec_extra_omode(struct changelog_rec *rec, int flags);
315 void mdd_changelog_rec_extra_xattr(struct changelog_rec *rec,
316 const char *xattr_name);
317 int mdd_changelog_store(const struct lu_env *env, struct mdd_device *mdd,
318 struct llog_changelog_rec *rec, struct thandle *th);
319 int mdd_changelog_data_store(const struct lu_env *env, struct mdd_device *mdd,
320 enum changelog_rec_type type, int flags,
321 struct mdd_object *mdd_obj,
322 struct thandle *handle);
323 int mdd_changelog_ns_store(const struct lu_env *env, struct mdd_device *mdd,
324 enum changelog_rec_type type,
325 enum changelog_rec_flags crf,
326 struct mdd_object *target,
327 const struct lu_fid *tpfid,
328 const struct lu_fid *sfid,
329 const struct lu_fid *spfid,
330 const struct lu_name *tname,
331 const struct lu_name *sname,
332 struct thandle *handle);
333 int mdd_invalidate(const struct lu_env *env, struct md_object *obj);
334 int mdd_declare_create_object_internal(const struct lu_env *env,
335 struct mdd_object *p,
336 struct mdd_object *c,
337 struct lu_attr *attr,
338 struct thandle *handle,
339 const struct md_op_spec *spec,
340 struct dt_allocation_hint *hint);
341 int mdd_get_lov_ea(const struct lu_env *env, struct mdd_object *obj,
342 struct lu_buf *lmm_buf);
345 void mdd_object_make_hint(const struct lu_env *env, struct mdd_object *parent,
346 struct mdd_object *child, const struct lu_attr *attr,
347 const struct md_op_spec *spec,
348 struct dt_allocation_hint *hint);
350 static inline void mdd_object_get(struct mdd_object *o)
352 lu_object_get(&o->mod_obj.mo_lu);
355 static inline void mdd_object_put(const struct lu_env *env,
356 struct mdd_object *o)
358 lu_object_put(env, &o->mod_obj.mo_lu);
361 struct thandle *mdd_trans_create(const struct lu_env *env,
362 struct mdd_device *mdd);
363 int mdd_trans_start(const struct lu_env *env, struct mdd_device *mdd,
365 int mdd_trans_stop(const struct lu_env *env, struct mdd_device *mdd,
366 int rc, struct thandle *handle);
369 struct lu_object *mdd_object_alloc(const struct lu_env *env,
370 const struct lu_object_header *hdr,
371 struct lu_device *d);
372 int mdd_local_file_create(const struct lu_env *env, struct mdd_device *mdd,
373 const struct lu_fid *pfid, const char *name,
374 __u32 mode, struct lu_fid *fid);
376 int mdd_acl_chmod(const struct lu_env *env, struct mdd_object *o, __u32 mode,
377 struct thandle *handle);
378 int mdd_acl_set(const struct lu_env *env, struct mdd_object *obj,
379 struct lu_attr *attr, const struct lu_buf *buf, int fl);
380 int __mdd_fix_mode_acl(const struct lu_env *env, struct lu_buf *buf,
382 int __mdd_permission_internal(const struct lu_env *env, struct mdd_object *obj,
383 const struct lu_attr *la, int mask, int role);
384 int mdd_permission(const struct lu_env *env,
385 struct md_object *pobj, struct md_object *cobj,
386 struct md_attr *ma, int mask);
387 int mdd_generic_thread_start(struct mdd_generic_thread *thread,
388 int (*func)(void *), void *data, char *name);
389 void mdd_generic_thread_stop(struct mdd_generic_thread *thread);
390 int mdd_changelog_user_purge(const struct lu_env *env, struct mdd_device *mdd,
394 int mdd_compat_fixes(const struct lu_env *env, struct mdd_device *mdd);
396 /* inline functions */
397 static inline int lu_device_is_mdd(struct lu_device *d)
399 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &mdd_lu_ops);
402 static inline struct mdd_device* lu2mdd_dev(struct lu_device *d)
404 LASSERT(lu_device_is_mdd(d));
405 return container_of0(d, struct mdd_device, mdd_md_dev.md_lu_dev);
408 static inline struct lu_device *mdd2lu_dev(struct mdd_device *d)
410 return (&d->mdd_md_dev.md_lu_dev);
413 static inline struct mdd_object *lu2mdd_obj(struct lu_object *o)
415 LASSERT(ergo(o != NULL, lu_device_is_mdd(o->lo_dev)));
416 return container_of0(o, struct mdd_object, mod_obj.mo_lu);
419 static inline struct mdd_device* mdo2mdd(struct md_object *mdo)
421 return lu2mdd_dev(mdo->mo_lu.lo_dev);
424 static inline struct mdd_object* md2mdd_obj(struct md_object *mdo)
426 return container_of0(mdo, struct mdd_object, mod_obj);
429 static inline const struct dt_device_operations *
430 mdd_child_ops(struct mdd_device *d)
432 return d->mdd_child->dd_ops;
435 static inline struct lu_object *mdd2lu_obj(struct mdd_object *obj)
437 return &obj->mod_obj.mo_lu;
440 static inline struct dt_object* mdd_object_child(struct mdd_object *o)
442 return container_of0(lu_object_next(mdd2lu_obj(o)),
443 struct dt_object, do_lu);
446 static inline struct obd_device *mdd2obd_dev(struct mdd_device *mdd)
448 return (mdd->mdd_md_dev.md_lu_dev.ld_obd);
451 static inline struct mdd_device *mdd_obj2mdd_dev(struct mdd_object *obj)
453 return mdo2mdd(&obj->mod_obj);
456 static inline const struct lu_fid *mdo2fid(const struct mdd_object *obj)
458 return lu_object_fid(&obj->mod_obj.mo_lu);
461 static inline umode_t mdd_object_type(const struct mdd_object *obj)
463 return lu_object_attr(&obj->mod_obj.mo_lu);
466 static inline int mdd_is_dead_obj(struct mdd_object *obj)
468 return obj && obj->mod_flags & DEAD_OBJ;
471 static inline bool mdd_is_volatile_obj(struct mdd_object *obj)
473 return obj->mod_flags & VOLATILE_OBJ;
476 static inline int mdd_object_exists(struct mdd_object *obj)
478 return lu_object_exists(mdd2lu_obj(obj));
481 static inline int mdd_object_remote(struct mdd_object *obj)
483 return lu_object_remote(mdd2lu_obj(obj));
486 static inline const struct lu_fid *mdd_object_fid(struct mdd_object *obj)
488 return lu_object_fid(mdd2lu_obj(obj));
491 static inline struct seq_server_site *mdd_seq_site(struct mdd_device *mdd)
493 return mdd2lu_dev(mdd)->ld_site->ld_seq_site;
496 static inline const char *mdd_obj_dev_name(const struct mdd_object *obj)
498 return lu_dev_name(obj->mod_obj.mo_lu.lo_dev);
501 #define MAX_ATIME_DIFF 60
503 static inline int mdd_permission_internal(const struct lu_env *env,
504 struct mdd_object *obj,
505 const struct lu_attr *la, int mask)
507 return __mdd_permission_internal(env, obj, la, mask, -1);
510 static inline int mdd_permission_internal_locked(const struct lu_env *env,
511 struct mdd_object *obj,
512 const struct lu_attr *la,
514 enum mdd_object_role role)
516 return __mdd_permission_internal(env, obj, la, mask, role);
519 /* mdd inline func for calling osd_dt_object ops */
520 static inline int mdo_attr_get(const struct lu_env *env, struct mdd_object *obj,
523 struct dt_object *next = mdd_object_child(obj);
524 return dt_attr_get(env, next, la);
527 static inline int mdo_declare_attr_set(const struct lu_env *env,
528 struct mdd_object *obj,
529 const struct lu_attr *la,
530 struct thandle *handle)
532 struct dt_object *next = mdd_object_child(obj);
533 return dt_declare_attr_set(env, next, la, handle);
536 static inline int mdo_attr_set(const struct lu_env *env,
537 struct mdd_object *obj,
538 const struct lu_attr *la,
539 struct thandle *handle)
541 struct dt_object *next = mdd_object_child(obj);
543 if (!mdd_object_exists(obj))
546 return dt_attr_set(env, next, la, handle);
549 static inline int mdo_xattr_get(const struct lu_env *env,struct mdd_object *obj,
550 struct lu_buf *buf, const char *name)
552 struct dt_object *next = mdd_object_child(obj);
553 return dt_xattr_get(env, next, buf, name);
556 static inline int mdo_declare_xattr_set(const struct lu_env *env,
557 struct mdd_object *obj,
558 const struct lu_buf *buf,
560 int fl, struct thandle *handle)
562 struct dt_object *next = mdd_object_child(obj);
563 return dt_declare_xattr_set(env, next, buf, name, fl, handle);
566 static inline int mdo_xattr_set(const struct lu_env *env,struct mdd_object *obj,
567 const struct lu_buf *buf, const char *name,
568 int fl, struct thandle *handle)
570 struct dt_object *next = mdd_object_child(obj);
572 if (!mdd_object_exists(obj))
575 return dt_xattr_set(env, next, buf, name, fl, handle);
578 static inline int mdo_declare_xattr_del(const struct lu_env *env,
579 struct mdd_object *obj,
581 struct thandle *handle)
583 struct dt_object *next = mdd_object_child(obj);
584 return dt_declare_xattr_del(env, next, name, handle);
587 static inline int mdo_xattr_del(const struct lu_env *env,struct mdd_object *obj,
588 const char *name, struct thandle *handle)
590 struct dt_object *next = mdd_object_child(obj);
592 if (!mdd_object_exists(obj))
595 return dt_xattr_del(env, next, name, handle);
599 mdo_xattr_list(const struct lu_env *env, struct mdd_object *obj,
602 struct dt_object *next = mdd_object_child(obj);
604 if (!mdd_object_exists(obj))
607 return dt_xattr_list(env, next, buf);
611 mdo_invalidate(const struct lu_env *env, struct mdd_object *obj)
613 return dt_invalidate(env, mdd_object_child(obj));
617 mdo_declare_layout_change(const struct lu_env *env, struct mdd_object *obj,
618 struct md_layout_change *mlc, struct thandle *handle)
620 return dt_declare_layout_change(env, mdd_object_child(obj),
625 mdo_layout_change(const struct lu_env *env, struct mdd_object *obj,
626 struct md_layout_change *mlc, struct thandle *handle)
628 return dt_layout_change(env, mdd_object_child(obj), mlc, handle);
632 int mdo_declare_index_insert(const struct lu_env *env, struct mdd_object *obj,
633 const struct lu_fid *fid, __u32 type,
634 const char *name, struct thandle *handle)
636 struct dt_object *next = mdd_object_child(obj);
640 * if the object doesn't exist yet, then it's supposed to be created
641 * and declaration of the creation should be enough to insert ./..
645 if (dt_try_as_dir(env, next)) {
646 struct dt_insert_rec *rec = &mdd_env_info(env)->mti_dt_rec;
649 rec->rec_type = type;
650 rc = dt_declare_insert(env, next, (const struct dt_rec *)rec,
651 (const struct dt_key *)name, handle);
658 int mdo_declare_index_delete(const struct lu_env *env, struct mdd_object *obj,
659 const char *name, struct thandle *handle)
661 struct dt_object *next = mdd_object_child(obj);
663 if (!dt_try_as_dir(env, next))
666 return dt_declare_delete(env, next, (const struct dt_key *)name,
670 static inline int mdo_declare_ref_add(const struct lu_env *env,
671 struct mdd_object *obj,
672 struct thandle *handle)
674 struct dt_object *next = mdd_object_child(obj);
675 return dt_declare_ref_add(env, next, handle);
678 static inline int mdo_ref_add(const struct lu_env *env, struct mdd_object *obj,
679 struct thandle *handle)
681 struct dt_object *next = mdd_object_child(obj);
683 if (!mdd_object_exists(obj))
686 return dt_ref_add(env, next, handle);
689 static inline int mdo_declare_ref_del(const struct lu_env *env,
690 struct mdd_object *obj,
691 struct thandle *handle)
693 struct dt_object *next = mdd_object_child(obj);
694 return dt_declare_ref_del(env, next, handle);
697 static inline int mdo_ref_del(const struct lu_env *env, struct mdd_object *obj,
698 struct thandle *handle)
700 struct dt_object *next = mdd_object_child(obj);
702 if (!mdd_object_exists(obj))
705 return dt_ref_del(env, next, handle);
709 mdo_declare_create_object(const struct lu_env *env, struct mdd_object *obj,
710 struct lu_attr *attr, struct dt_allocation_hint *hint,
711 struct dt_object_format *dof, struct thandle *handle)
713 struct dt_object *next = mdd_object_child(obj);
714 return dt_declare_create(env, next, attr, hint, dof, handle);
718 mdo_create_object(const struct lu_env *env, struct mdd_object *obj,
719 struct lu_attr *attr, struct dt_allocation_hint *hint,
720 struct dt_object_format *dof, struct thandle *handle)
722 struct dt_object *next = mdd_object_child(obj);
723 return dt_create(env, next, attr, hint, dof, handle);
727 int mdo_declare_destroy(const struct lu_env *env, struct mdd_object *o,
728 struct thandle *handle)
730 struct dt_object *next = mdd_object_child(o);
731 return dt_declare_destroy(env, next, handle);
735 int mdo_destroy(const struct lu_env *env, struct mdd_object *o,
736 struct thandle *handle)
738 struct dt_object *next = mdd_object_child(o);
739 return dt_destroy(env, next, handle);