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 */
126 struct md_object mod_obj;
131 unsigned long mod_flags;
134 struct mdd_thread_info {
135 struct lu_fid mti_fid;
136 struct lu_fid mti_fid2; /* used for be & cpu converting */
138 * only be used by MDD interfaces, can be passed into local MDD APIs.
140 struct lu_attr mti_pattr;
141 struct lu_attr mti_cattr;
142 struct lu_attr mti_tpattr;
143 struct lu_attr mti_tattr;
144 /** used to set c/mtime */
145 struct lu_attr mti_la_for_fix;
146 /* Only used in mdd_object_start */
147 struct lu_attr mti_la_for_start;
148 /* mti_ent and mti_key must be conjoint,
149 * then mti_ent::lde_name will be mti_key. */
150 struct lu_dirent mti_ent;
151 char mti_key[NAME_MAX + 16];
152 struct lu_buf mti_buf[4];
153 struct lu_buf mti_big_buf; /* biggish persistent buf */
154 struct lu_buf mti_link_buf; /* buf for link ea */
156 char mti_xattr_buf[LUSTRE_POSIX_ACL_MAX_SIZE];
157 struct dt_allocation_hint mti_hint;
158 struct dt_object_format mti_dof;
159 struct linkea_data mti_link_data;
160 struct md_op_spec mti_spec;
161 struct dt_insert_rec mti_dt_rec;
162 struct lfsck_request mti_lr;
165 enum mdd_links_add_overflow {
170 extern const char orph_index_name[];
172 int mdd_la_get(const struct lu_env *env, struct mdd_object *obj,
173 struct lu_attr *la, struct lustre_capa *capa);
174 int mdd_attr_get(const struct lu_env *env, struct md_object *obj,
176 int mdd_attr_set(const struct lu_env *env, struct md_object *obj,
177 const struct md_attr *ma);
178 int mdd_attr_set_internal(const struct lu_env *env,
179 struct mdd_object *obj,
180 const struct lu_attr *attr,
181 struct thandle *handle,
183 int mdd_update_time(const struct lu_env *env, struct mdd_object *obj,
184 const struct lu_attr *oattr, struct lu_attr *attr,
185 struct thandle *handle);
186 int mdd_object_create_internal(const struct lu_env *env, struct mdd_object *p,
187 struct mdd_object *c, struct lu_attr *attr,
188 struct thandle *handle,
189 const struct md_op_spec *spec,
190 struct dt_allocation_hint *hint);
193 void mdd_write_lock(const struct lu_env *env, struct mdd_object *obj,
194 enum mdd_object_role role);
195 void mdd_read_lock(const struct lu_env *env, struct mdd_object *obj,
196 enum mdd_object_role role);
197 void mdd_write_unlock(const struct lu_env *env, struct mdd_object *obj);
198 void mdd_read_unlock(const struct lu_env *env, struct mdd_object *obj);
199 int mdd_write_locked(const struct lu_env *env, struct mdd_object *obj);
202 int mdd_is_subdir(const struct lu_env *env, struct md_object *mo,
203 const struct lu_fid *fid, struct lu_fid *sfid);
204 int mdd_may_create(const struct lu_env *env, struct mdd_object *pobj,
205 const struct lu_attr *pattr, struct mdd_object *cobj,
207 int mdd_may_unlink(const struct lu_env *env, struct mdd_object *pobj,
208 const struct lu_attr *pattr, const struct lu_attr *attr);
209 int mdd_may_delete(const struct lu_env *env, struct mdd_object *tpobj,
210 const struct lu_attr *tpattr, struct mdd_object *tobj,
211 const struct lu_attr *tattr, const struct lu_attr *cattr,
212 int check_perm, int check_empty);
213 int mdd_unlink_sanity_check(const struct lu_env *env, struct mdd_object *pobj,
214 const struct lu_attr *pattr,
215 struct mdd_object *cobj,
216 const struct lu_attr *cattr);
217 int mdd_finish_unlink(const struct lu_env *env, struct mdd_object *obj,
218 struct md_attr *ma, const struct mdd_object *pobj,
219 const struct lu_name *lname, struct thandle *th);
221 int mdd_is_root(struct mdd_device *mdd, const struct lu_fid *fid);
222 int mdd_lookup(const struct lu_env *env,
223 struct md_object *pobj, const struct lu_name *lname,
224 struct lu_fid* fid, struct md_op_spec *spec);
225 int mdd_links_read(const struct lu_env *env, struct mdd_object *mdd_obj,
226 struct linkea_data *ldata);
227 int mdd_declare_links_add(const struct lu_env *env, struct mdd_object *mdd_obj,
228 struct thandle *handle, struct linkea_data *ldata,
229 enum mdd_links_add_overflow overflow);
230 int mdd_links_write(const struct lu_env *env, struct mdd_object *mdd_obj,
231 struct linkea_data *ldata, struct thandle *handle);
232 struct lu_buf *mdd_links_get(const struct lu_env *env,
233 struct mdd_object *mdd_obj);
234 int mdd_links_rename(const struct lu_env *env,
235 struct mdd_object *mdd_obj,
236 const struct lu_fid *oldpfid,
237 const struct lu_name *oldlname,
238 const struct lu_fid *newpfid,
239 const struct lu_name *newlname,
240 struct thandle *handle,
241 struct linkea_data *ldata,
242 int first, int check);
244 struct mdd_thread_info *mdd_env_info(const struct lu_env *env);
246 #define MDD_ENV_VAR(env, var) (&mdd_env_info(env)->mti_##var)
248 struct lu_buf *mdd_buf_get(const struct lu_env *env, void *area, ssize_t len);
249 const struct lu_buf *mdd_buf_get_const(const struct lu_env *env,
250 const void *area, ssize_t len);
252 int mdd_orphan_cleanup(const struct lu_env *env, struct mdd_device *d);
253 int __mdd_orphan_add(const struct lu_env *, struct mdd_object *,
255 int __mdd_orphan_del(const struct lu_env *, struct mdd_object *,
257 int orph_index_init(const struct lu_env *env, struct mdd_device *mdd);
258 void orph_index_fini(const struct lu_env *env, struct mdd_device *mdd);
259 int orph_declare_index_insert(const struct lu_env *, struct mdd_object *,
260 umode_t mode, struct thandle *);
261 int orph_declare_index_delete(const struct lu_env *, struct mdd_object *,
265 int mdd_procfs_init(struct mdd_device *mdd, const char *name);
266 void mdd_procfs_fini(struct mdd_device *mdd);
269 extern struct kmem_cache *mdd_object_kmem;
270 extern const struct md_dir_operations mdd_dir_ops;
271 extern const struct md_object_operations mdd_obj_ops;
272 int mdd_readlink(const struct lu_env *env, struct md_object *obj,
274 int accmode(const struct lu_env *env, const struct lu_attr *la, int flags);
275 extern struct lu_context_key mdd_thread_key;
276 extern const struct lu_device_operations mdd_lu_ops;
278 struct mdd_object *mdd_object_find(const struct lu_env *env,
279 struct mdd_device *d,
280 const struct lu_fid *f);
281 int mdd_readpage(const struct lu_env *env, struct md_object *obj,
282 const struct lu_rdpg *rdpg);
283 int mdd_declare_changelog_store(const struct lu_env *env,
284 struct mdd_device *mdd,
285 const struct lu_name *tname,
286 const struct lu_name *sname,
287 struct thandle *handle);
288 void mdd_changelog_rec_ext_jobid(struct changelog_rec *rec, const char *jobid);
289 int mdd_changelog_store(const struct lu_env *env, struct mdd_device *mdd,
290 struct llog_changelog_rec *rec, struct thandle *th);
291 int mdd_changelog_data_store(const struct lu_env *env, struct mdd_device *mdd,
292 enum changelog_rec_type type, int flags,
293 struct mdd_object *mdd_obj,
294 struct thandle *handle);
295 int mdd_changelog_ns_store(const struct lu_env *env, struct mdd_device *mdd,
296 enum changelog_rec_type type,
297 enum changelog_rec_flags crf,
298 struct mdd_object *target,
299 const struct lu_fid *tpfid,
300 const struct lu_fid *sfid,
301 const struct lu_fid *spfid,
302 const struct lu_name *tname,
303 const struct lu_name *sname,
304 struct thandle *handle);
305 int mdd_declare_object_create_internal(const struct lu_env *env,
306 struct mdd_object *p,
307 struct mdd_object *c,
308 struct lu_attr *attr,
309 struct thandle *handle,
310 const struct md_op_spec *spec,
311 struct dt_allocation_hint *hint);
312 int mdd_get_lov_ea(const struct lu_env *env, struct mdd_object *obj,
313 struct lu_buf *lmm_buf);
316 void mdd_object_make_hint(const struct lu_env *env, struct mdd_object *parent,
317 struct mdd_object *child, const struct lu_attr *attr,
318 const struct md_op_spec *spec,
319 struct dt_allocation_hint *hint);
321 static inline void mdd_object_get(struct mdd_object *o)
323 lu_object_get(&o->mod_obj.mo_lu);
326 static inline void mdd_object_put(const struct lu_env *env,
327 struct mdd_object *o)
329 lu_object_put(env, &o->mod_obj.mo_lu);
332 struct thandle *mdd_trans_create(const struct lu_env *env,
333 struct mdd_device *mdd);
334 int mdd_trans_start(const struct lu_env *env, struct mdd_device *mdd,
336 int mdd_trans_stop(const struct lu_env *env, struct mdd_device *mdd,
337 int rc, struct thandle *handle);
340 struct lu_object *mdd_object_alloc(const struct lu_env *env,
341 const struct lu_object_header *hdr,
342 struct lu_device *d);
343 int mdd_local_file_create(const struct lu_env *env, struct mdd_device *mdd,
344 const struct lu_fid *pfid, const char *name,
345 __u32 mode, struct lu_fid *fid);
347 int mdd_acl_chmod(const struct lu_env *env, struct mdd_object *o, __u32 mode,
348 struct thandle *handle);
349 int mdd_acl_set(const struct lu_env *env, struct mdd_object *obj,
350 struct lu_attr *attr, const struct lu_buf *buf, int fl);
351 int __mdd_fix_mode_acl(const struct lu_env *env, struct lu_buf *buf,
353 int __mdd_permission_internal(const struct lu_env *env, struct mdd_object *obj,
354 const struct lu_attr *la, int mask, int role);
355 int mdd_permission(const struct lu_env *env,
356 struct md_object *pobj, struct md_object *cobj,
357 struct md_attr *ma, int mask);
358 int mdd_capa_get(const struct lu_env *env, struct md_object *obj,
359 struct lustre_capa *capa, int renewal);
360 int mdd_generic_thread_start(struct mdd_generic_thread *thread,
361 int (*func)(void *), void *data, char *name);
362 void mdd_generic_thread_stop(struct mdd_generic_thread *thread);
365 int mdd_compat_fixes(const struct lu_env *env, struct mdd_device *mdd);
367 /* inline functions */
368 static inline int lu_device_is_mdd(struct lu_device *d)
370 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &mdd_lu_ops);
373 static inline struct mdd_device* lu2mdd_dev(struct lu_device *d)
375 LASSERT(lu_device_is_mdd(d));
376 return container_of0(d, struct mdd_device, mdd_md_dev.md_lu_dev);
379 static inline struct lu_device *mdd2lu_dev(struct mdd_device *d)
381 return (&d->mdd_md_dev.md_lu_dev);
384 static inline struct mdd_object *lu2mdd_obj(struct lu_object *o)
386 LASSERT(ergo(o != NULL, lu_device_is_mdd(o->lo_dev)));
387 return container_of0(o, struct mdd_object, mod_obj.mo_lu);
390 static inline struct mdd_device* mdo2mdd(struct md_object *mdo)
392 return lu2mdd_dev(mdo->mo_lu.lo_dev);
395 static inline struct mdd_object* md2mdd_obj(struct md_object *mdo)
397 return container_of0(mdo, struct mdd_object, mod_obj);
400 static inline const struct dt_device_operations *
401 mdd_child_ops(struct mdd_device *d)
403 return d->mdd_child->dd_ops;
406 static inline struct lu_object *mdd2lu_obj(struct mdd_object *obj)
408 return &obj->mod_obj.mo_lu;
411 static inline struct dt_object* mdd_object_child(struct mdd_object *o)
413 return container_of0(lu_object_next(mdd2lu_obj(o)),
414 struct dt_object, do_lu);
417 static inline struct obd_device *mdd2obd_dev(struct mdd_device *mdd)
419 return (mdd->mdd_md_dev.md_lu_dev.ld_obd);
422 static inline struct mdd_device *mdd_obj2mdd_dev(struct mdd_object *obj)
424 return mdo2mdd(&obj->mod_obj);
427 static inline const struct lu_fid *mdo2fid(const struct mdd_object *obj)
429 return lu_object_fid(&obj->mod_obj.mo_lu);
432 static inline umode_t mdd_object_type(const struct mdd_object *obj)
434 return lu_object_attr(&obj->mod_obj.mo_lu);
437 static inline int mdd_is_dead_obj(struct mdd_object *obj)
439 return obj && obj->mod_flags & DEAD_OBJ;
442 static inline int mdd_object_exists(struct mdd_object *obj)
444 return lu_object_exists(mdd2lu_obj(obj));
447 static inline int mdd_object_remote(struct mdd_object *obj)
449 return lu_object_remote(mdd2lu_obj(obj));
452 static inline const struct lu_fid *mdd_object_fid(struct mdd_object *obj)
454 return lu_object_fid(mdd2lu_obj(obj));
457 static inline struct seq_server_site *mdd_seq_site(struct mdd_device *mdd)
459 return mdd2lu_dev(mdd)->ld_site->ld_seq_site;
462 static inline struct lustre_capa *mdd_object_capa(const struct lu_env *env,
463 const struct mdd_object *obj)
465 struct lu_capainfo *lci = lu_capainfo_get(env);
466 const struct lu_fid *fid = mdo2fid(obj);
469 /* NB: in mdt_init0 */
473 for (i = 0; i < LU_CAPAINFO_MAX; i++)
474 if (lu_fid_eq(&lci->lci_fid[i], fid))
475 return lci->lci_capa[i];
479 static inline void mdd_set_capainfo(const struct lu_env *env, int offset,
480 const struct mdd_object *obj,
481 struct lustre_capa *capa)
483 struct lu_capainfo *lci = lu_capainfo_get(env);
484 const struct lu_fid *fid = mdo2fid(obj);
486 LASSERT(offset >= 0 && offset < LU_CAPAINFO_MAX);
487 /* NB: in mdt_init0 */
491 lci->lci_fid[offset] = *fid;
492 lci->lci_capa[offset] = capa;
495 static inline const char *mdd_obj_dev_name(const struct mdd_object *obj)
497 return lu_dev_name(obj->mod_obj.mo_lu.lo_dev);
500 #define MAX_ATIME_DIFF 60
502 static inline int mdd_permission_internal(const struct lu_env *env,
503 struct mdd_object *obj,
504 const struct lu_attr *la, int mask)
506 return __mdd_permission_internal(env, obj, la, mask, -1);
509 static inline int mdd_permission_internal_locked(const struct lu_env *env,
510 struct mdd_object *obj,
511 const struct lu_attr *la,
513 enum mdd_object_role role)
515 return __mdd_permission_internal(env, obj, la, mask, role);
518 /* mdd inline func for calling osd_dt_object ops */
519 static inline int mdo_attr_get(const struct lu_env *env, struct mdd_object *obj,
520 struct lu_attr *la, struct lustre_capa *capa)
522 struct dt_object *next = mdd_object_child(obj);
523 return dt_attr_get(env, next, la, capa);
526 static inline int mdo_declare_attr_set(const struct lu_env *env,
527 struct mdd_object *obj,
528 const struct lu_attr *la,
529 struct thandle *handle)
531 struct dt_object *next = mdd_object_child(obj);
532 return dt_declare_attr_set(env, next, la, handle);
535 static inline int mdo_attr_set(const struct lu_env *env,
536 struct mdd_object *obj,
537 const struct lu_attr *la,
538 struct thandle *handle,
539 struct lustre_capa *capa)
541 struct dt_object *next = mdd_object_child(obj);
543 if (!mdd_object_exists(obj))
546 return dt_attr_set(env, next, la, handle, capa);
549 static inline int mdo_xattr_get(const struct lu_env *env,struct mdd_object *obj,
550 struct lu_buf *buf, const char *name,
551 struct lustre_capa *capa)
553 struct dt_object *next = mdd_object_child(obj);
554 return dt_xattr_get(env, next, buf, name, capa);
557 static inline int mdo_declare_xattr_set(const struct lu_env *env,
558 struct mdd_object *obj,
559 const struct lu_buf *buf,
561 int fl, struct thandle *handle)
563 struct dt_object *next = mdd_object_child(obj);
564 return dt_declare_xattr_set(env, next, buf, name, fl, handle);
567 static inline int mdo_xattr_set(const struct lu_env *env,struct mdd_object *obj,
568 const struct lu_buf *buf, const char *name,
569 int fl, struct thandle *handle,
570 struct lustre_capa *capa)
572 struct dt_object *next = mdd_object_child(obj);
574 if (!mdd_object_exists(obj))
577 return dt_xattr_set(env, next, buf, name, fl, handle, capa);
580 static inline int mdo_declare_xattr_del(const struct lu_env *env,
581 struct mdd_object *obj,
583 struct thandle *handle)
585 struct dt_object *next = mdd_object_child(obj);
586 return dt_declare_xattr_del(env, next, name, handle);
589 static inline int mdo_xattr_del(const struct lu_env *env,struct mdd_object *obj,
590 const char *name, struct thandle *handle,
591 struct lustre_capa *capa)
593 struct dt_object *next = mdd_object_child(obj);
595 if (!mdd_object_exists(obj))
598 return dt_xattr_del(env, next, name, handle, capa);
602 mdo_xattr_list(const struct lu_env *env, struct mdd_object *obj,
603 struct lu_buf *buf, struct lustre_capa *capa)
605 struct dt_object *next = mdd_object_child(obj);
607 if (!mdd_object_exists(obj))
610 return dt_xattr_list(env, next, buf, capa);
614 int mdo_declare_index_insert(const struct lu_env *env, struct mdd_object *obj,
615 const struct lu_fid *fid, __u32 type,
616 const char *name, struct thandle *handle)
618 struct dt_object *next = mdd_object_child(obj);
622 * if the object doesn't exist yet, then it's supposed to be created
623 * and declaration of the creation should be enough to insert ./..
626 /* FIXME: remote object should not be awared by MDD layer, but local
627 * creation does not declare insert ./.. (comments above), which
628 * is required by remote directory creation.
629 * This remote check should be removed when mdd_object_exists check is
632 if (mdd_object_exists(obj) || mdd_object_remote(obj)) {
634 if (dt_try_as_dir(env, next)) {
635 struct dt_insert_rec *rec =
636 &mdd_env_info(env)->mti_dt_rec;
639 rec->rec_type = type;
640 rc = dt_declare_insert(env, next,
641 (const struct dt_rec *)rec,
642 (const struct dt_key *)name,
651 int mdo_declare_index_delete(const struct lu_env *env, struct mdd_object *obj,
652 const char *name, struct thandle *handle)
654 struct dt_object *next = mdd_object_child(obj);
656 if (!dt_try_as_dir(env, next))
659 return dt_declare_delete(env, next, (const struct dt_key *)name,
663 static inline int mdo_declare_ref_add(const struct lu_env *env,
664 struct mdd_object *obj,
665 struct thandle *handle)
667 struct dt_object *next = mdd_object_child(obj);
668 return dt_declare_ref_add(env, next, handle);
671 static inline int mdo_ref_add(const struct lu_env *env, struct mdd_object *obj,
672 struct thandle *handle)
674 struct dt_object *next = mdd_object_child(obj);
676 if (!mdd_object_exists(obj))
679 return dt_ref_add(env, next, handle);
682 static inline int mdo_declare_ref_del(const struct lu_env *env,
683 struct mdd_object *obj,
684 struct thandle *handle)
686 struct dt_object *next = mdd_object_child(obj);
687 return dt_declare_ref_del(env, next, handle);
690 static inline int mdo_ref_del(const struct lu_env *env, struct mdd_object *obj,
691 struct thandle *handle)
693 struct dt_object *next = mdd_object_child(obj);
695 if (!mdd_object_exists(obj))
698 return dt_ref_del(env, next, handle);
702 mdo_declare_create_obj(const struct lu_env *env, struct mdd_object *o,
703 struct lu_attr *attr,
704 struct dt_allocation_hint *hint,
705 struct dt_object_format *dof,
706 struct thandle *handle)
708 struct dt_object *next = mdd_object_child(o);
709 return dt_declare_create(env, next, attr, hint, dof, handle);
713 mdo_create_obj(const struct lu_env *env, struct mdd_object *o,
714 struct lu_attr *attr,
715 struct dt_allocation_hint *hint,
716 struct dt_object_format *dof,
717 struct thandle *handle)
719 struct dt_object *next = mdd_object_child(o);
720 return dt_create(env, next, attr, hint, dof, handle);
724 int mdo_declare_destroy(const struct lu_env *env, struct mdd_object *o,
725 struct thandle *handle)
727 struct dt_object *next = mdd_object_child(o);
728 return dt_declare_destroy(env, next, handle);
732 int mdo_destroy(const struct lu_env *env, struct mdd_object *o,
733 struct thandle *handle)
735 struct dt_object *next = mdd_object_child(o);
736 return dt_destroy(env, next, handle);
739 static inline struct obd_capa *
740 mdo_capa_get(const struct lu_env *env, struct mdd_object *obj,
741 struct lustre_capa *old, __u64 opc)
743 struct dt_object *next = mdd_object_child(obj);
745 if (!mdd_object_exists(obj))
746 return ERR_PTR(-ENOENT);
748 return dt_capa_get(env, next, old, opc);