1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
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 <asm/semaphore.h>
46 #include <lustre_acl.h>
47 #include <lustre_eacl.h>
49 #include <md_object.h>
50 #include <dt_object.h>
51 #include <linux/sched.h>
52 #include <linux/capability.h>
53 #include <linux/dynlocks.h>
54 #ifdef HAVE_QUOTA_SUPPORT
55 # include <lustre_quota.h>
57 #include <lustre_fsfilt.h>
59 #ifdef HAVE_QUOTA_SUPPORT
61 extern quota_interface_t *mds_quota_interface_ref;
63 static inline void mdd_quota_wrapper(struct lu_attr *la, unsigned int *qids)
71 MDD_TXN_OBJECT_DESTROY_OP = 0,
72 MDD_TXN_OBJECT_CREATE_OP,
75 MDD_TXN_INDEX_INSERT_OP,
76 MDD_TXN_INDEX_DELETE_OP,
80 MDD_TXN_RENAME_TGT_OP,
81 MDD_TXN_CREATE_DATA_OP,
86 struct mdd_txn_op_descr {
87 enum mdd_txn_op mod_op;
88 unsigned int mod_credits;
92 struct md_device mdd_md_dev;
93 struct dt_device *mdd_child;
94 struct obd_device *mdd_obd_dev;
95 struct lu_fid mdd_root_fid;
96 struct dt_device_param mdd_dt_conf;
97 struct dt_object *mdd_orphans;
98 struct dt_txn_callback mdd_txn_cb;
99 cfs_proc_dir_entry_t *mdd_proc_entry;
100 struct lprocfs_stats *mdd_stats;
101 struct mdd_txn_op_descr mdd_tod[MDD_TXN_LAST_OP];
102 unsigned long mdd_atime_diff;
106 /* The dir object has been unlinked */
114 #define LUSTRE_APPEND_FL LDISKFS_APPEND_FL
115 #define LUSTRE_IMMUTABLE_FL LDISKFS_IMMUTABLE_FL
116 #define LUSTRE_DIRSYNC_FL LDISKFS_DIRSYNC_FL
118 enum mdd_object_role {
126 struct md_object mod_obj;
130 unsigned long mod_flags;
131 struct dynlock mod_pdlock;
132 #ifdef CONFIG_LOCKDEP
133 /* "dep_map" name is assumed by lockdep.h macros. */
134 struct lockdep_map dep_map;
138 struct mdd_thread_info {
139 struct txn_param mti_param;
140 struct lu_fid mti_fid;
141 struct lu_attr mti_la;
142 struct md_attr mti_ma;
143 struct lu_attr mti_la_for_fix;
144 struct obd_info mti_oi;
145 char mti_orph_key[NAME_MAX + 1];
146 struct obd_trans_info mti_oti;
147 struct lu_buf mti_buf;
149 char mti_xattr_buf[LUSTRE_POSIX_ACL_MAX_SIZE];
150 struct lu_fid mti_fid2; /* used for be & cpu converting */
151 struct lu_fid_pack mti_pack;
152 struct dt_allocation_hint mti_hint;
153 struct lov_mds_md *mti_max_lmm;
154 int mti_max_lmm_size;
155 struct llog_cookie *mti_max_cookie;
156 int mti_max_cookie_size;
157 struct dt_object_format mti_dof;
158 struct obd_quotactl mti_oqctl;
161 extern const char orph_index_name[];
163 extern const struct dt_index_features orph_index_features;
165 struct lov_mds_md *mdd_max_lmm_get(const struct lu_env *env,
166 struct mdd_device *mdd);
168 struct llog_cookie *mdd_max_cookie_get(const struct lu_env *env,
169 struct mdd_device *mdd);
171 int mdd_init_obd(const struct lu_env *env, struct mdd_device *mdd,
172 struct lustre_cfg *cfg);
173 int mdd_fini_obd(const struct lu_env *env, struct mdd_device *mdd,
174 struct lustre_cfg *lcfg);
175 int mdd_xattr_set_txn(const struct lu_env *env, struct mdd_object *obj,
176 const struct lu_buf *buf, const char *name, int fl,
177 struct thandle *txn);
178 int mdd_lsm_sanity_check(const struct lu_env *env, struct mdd_object *obj);
179 int mdd_lov_set_md(const struct lu_env *env, struct mdd_object *pobj,
180 struct mdd_object *child, struct lov_mds_md *lmm,
181 int lmm_size, struct thandle *handle, int set_stripe);
182 int mdd_lov_create(const struct lu_env *env, struct mdd_device *mdd,
183 struct mdd_object *parent, struct mdd_object *child,
184 struct lov_mds_md **lmm, int *lmm_size,
185 const struct md_op_spec *spec, struct lu_attr *la);
186 int mdd_lov_objid_prepare(struct mdd_device *mdd, struct lov_mds_md *lmm);
187 void mdd_lov_objid_update(struct mdd_device *mdd, struct lov_mds_md *lmm);
188 void mdd_lov_create_finish(const struct lu_env *env, struct mdd_device *mdd,
189 struct lov_mds_md *lmm, int lmm_size,
190 const struct md_op_spec *spec);
191 int mdd_get_md(const struct lu_env *env, struct mdd_object *obj,
192 void *md, int *md_size, const char *name);
193 int mdd_get_md_locked(const struct lu_env *env, struct mdd_object *obj,
194 void *md, int *md_size, const char *name);
195 int mdd_la_get(const struct lu_env *env, struct mdd_object *obj,
196 struct lu_attr *la, struct lustre_capa *capa);
197 int mdd_attr_set_internal(const struct lu_env *env,
198 struct mdd_object *obj,
199 struct lu_attr *attr,
200 struct thandle *handle,
202 int mdd_attr_check_set_internal(const struct lu_env *env,
203 struct mdd_object *obj,
204 struct lu_attr *attr,
205 struct thandle *handle,
207 int mdd_object_kill(const struct lu_env *env, struct mdd_object *obj,
209 int mdd_iattr_get(const struct lu_env *env, struct mdd_object *mdd_obj,
211 int mdd_attr_get_internal_locked(const struct lu_env *env,
212 struct mdd_object *mdd_obj,
214 int mdd_object_create_internal(const struct lu_env *env, struct mdd_object *p,
215 struct mdd_object *c, struct md_attr *ma,
216 struct thandle *handle,
217 const struct md_op_spec *spec);
218 int mdd_attr_check_set_internal_locked(const struct lu_env *env,
219 struct mdd_object *obj,
220 struct lu_attr *attr,
221 struct thandle *handle,
223 int mdd_lmm_get_locked(const struct lu_env *env, struct mdd_object *mdd_obj,
226 void mdd_write_lock(const struct lu_env *env, struct mdd_object *obj,
227 enum mdd_object_role role);
228 void mdd_read_lock(const struct lu_env *env, struct mdd_object *obj,
229 enum mdd_object_role role);
230 void mdd_write_unlock(const struct lu_env *env, struct mdd_object *obj);
231 void mdd_read_unlock(const struct lu_env *env, struct mdd_object *obj);
233 void mdd_pdlock_init(struct mdd_object *obj);
234 unsigned long mdd_name2hash(const char *name);
235 struct dynlock_handle *mdd_pdo_write_lock(const struct lu_env *env,
236 struct mdd_object *obj,
238 enum mdd_object_role role);
239 struct dynlock_handle *mdd_pdo_read_lock(const struct lu_env *env,
240 struct mdd_object *obj,
242 enum mdd_object_role role);
243 void mdd_pdo_write_unlock(const struct lu_env *env, struct mdd_object *obj,
244 struct dynlock_handle *dlh);
245 void mdd_pdo_read_unlock(const struct lu_env *env, struct mdd_object *obj,
246 struct dynlock_handle *dlh);
248 void __mdd_ref_add(const struct lu_env *env, struct mdd_object *obj,
249 struct thandle *handle);
250 void __mdd_ref_del(const struct lu_env *env, struct mdd_object *obj,
251 struct thandle *handle, int is_dot);
252 int mdd_may_create(const struct lu_env *env, struct mdd_object *pobj,
253 struct mdd_object *cobj, int check_perm, int check_nlink);
254 int mdd_may_unlink(const struct lu_env *env, struct mdd_object *pobj,
255 const struct md_attr *ma);
256 int mdd_may_delete(const struct lu_env *env, struct mdd_object *pobj,
257 struct mdd_object *cobj, struct md_attr *ma,
258 int check_perm, int check_empty);
259 int mdd_unlink_sanity_check(const struct lu_env *env, struct mdd_object *pobj,
260 struct mdd_object *cobj, struct md_attr *ma);
261 int mdd_finish_unlink(const struct lu_env *env, struct mdd_object *obj,
262 struct md_attr *ma, struct thandle *th);
263 int mdd_object_initialize(const struct lu_env *env, const struct lu_fid *pfid,
264 struct mdd_object *child, struct md_attr *ma,
265 struct thandle *handle, const struct md_op_spec *spec);
266 int mdd_link_sanity_check(const struct lu_env *env, struct mdd_object *tgt_obj,
267 const struct lu_name *lname, struct mdd_object *src_obj);
269 int mdd_unlink_log(const struct lu_env *env, struct mdd_device *mdd,
270 struct mdd_object *mdd_cobj, struct md_attr *ma);
272 int mdd_setattr_log(const struct lu_env *env, struct mdd_device *mdd,
273 const struct md_attr *ma,
274 struct lov_mds_md *lmm, int lmm_size,
275 struct llog_cookie *logcookies, int cookies_size);
277 int mdd_get_cookie_size(const struct lu_env *env, struct mdd_device *mdd,
278 struct lov_mds_md *lmm);
280 int mdd_lov_setattr_async(const struct lu_env *env, struct mdd_object *obj,
281 struct lov_mds_md *lmm, int lmm_size,
282 struct llog_cookie *logcookies);
284 struct mdd_thread_info *mdd_env_info(const struct lu_env *env);
286 struct lu_buf *mdd_buf_get(const struct lu_env *env, void *area, ssize_t len);
287 const struct lu_buf *mdd_buf_get_const(const struct lu_env *env,
288 const void *area, ssize_t len);
290 int __mdd_orphan_cleanup(const struct lu_env *env, struct mdd_device *d);
291 int __mdd_orphan_add(const struct lu_env *, struct mdd_object *,
293 int __mdd_orphan_del(const struct lu_env *, struct mdd_object *,
295 int orph_index_init(const struct lu_env *env, struct mdd_device *mdd);
296 void orph_index_fini(const struct lu_env *env, struct mdd_device *mdd);
297 int mdd_txn_init_credits(const struct lu_env *env, struct mdd_device *mdd);
300 void lprocfs_mdd_init_vars(struct lprocfs_static_vars *lvars);
301 int mdd_procfs_init(struct mdd_device *mdd, const char *name);
302 int mdd_procfs_fini(struct mdd_device *mdd);
303 void mdd_lprocfs_time_start(const struct lu_env *env);
304 void mdd_lprocfs_time_end(const struct lu_env *env,
305 struct mdd_device *mdd, int op);
307 int mdd_get_flags(const struct lu_env *env, struct mdd_object *obj);
309 extern const struct md_dir_operations mdd_dir_ops;
310 extern const struct md_object_operations mdd_obj_ops;
313 #ifdef HAVE_QUOTA_SUPPORT
314 int mdd_quota_notify(const struct lu_env *env, struct md_device *m);
315 int mdd_quota_setup(const struct lu_env *env, struct md_device *m,
317 int mdd_quota_cleanup(const struct lu_env *env, struct md_device *m);
318 int mdd_quota_recovery(const struct lu_env *env, struct md_device *m);
319 int mdd_quota_check(const struct lu_env *env, struct md_device *m,
320 struct obd_export *exp, __u32 type);
321 int mdd_quota_on(const struct lu_env *env, struct md_device *m,
323 int mdd_quota_off(const struct lu_env *env, struct md_device *m,
325 int mdd_quota_setinfo(const struct lu_env *env, struct md_device *m,
326 __u32 type, __u32 id, struct obd_dqinfo *dqinfo);
327 int mdd_quota_getinfo(const struct lu_env *env, const struct md_device *m,
328 __u32 type, __u32 id, struct obd_dqinfo *dqinfo);
329 int mdd_quota_setquota(const struct lu_env *env, struct md_device *m,
330 __u32 type, __u32 id, struct obd_dqblk *dqblk);
331 int mdd_quota_getquota(const struct lu_env *env, const struct md_device *m,
332 __u32 type, __u32 id, struct obd_dqblk *dqblk);
333 int mdd_quota_getoinfo(const struct lu_env *env, const struct md_device *m,
334 __u32 type, __u32 id, struct obd_dqinfo *dqinfo);
335 int mdd_quota_getoquota(const struct lu_env *env, const struct md_device *m,
336 __u32 type, __u32 id, struct obd_dqblk *dqblk);
337 int mdd_quota_invalidate(const struct lu_env *env, struct md_device *m,
339 int mdd_quota_finvalidate(const struct lu_env *env, struct md_device *m,
344 void mdd_txn_param_build(const struct lu_env *env, struct mdd_device *mdd,
346 int mdd_log_txn_param_build(const struct lu_env *env, struct md_object *obj,
347 struct md_attr *ma, enum mdd_txn_op);
348 int mdd_setattr_txn_param_build(const struct lu_env *env, struct md_object *obj,
349 struct md_attr *ma, enum mdd_txn_op);
351 int mdd_lov_destroy(const struct lu_env *env, struct mdd_device *mdd,
352 struct mdd_object *obj, struct lu_attr *la);
354 static inline void mdd_object_put(const struct lu_env *env,
355 struct mdd_object *o)
357 lu_object_put(env, &o->mod_obj.mo_lu);
360 struct thandle* mdd_trans_start(const struct lu_env *env,
361 struct mdd_device *);
363 void mdd_trans_stop(const struct lu_env *env, struct mdd_device *mdd,
364 int rc, struct thandle *handle);
366 int mdd_txn_start_cb(const struct lu_env *env, struct txn_param *param,
369 int mdd_txn_stop_cb(const struct lu_env *env, struct thandle *txn,
372 int mdd_txn_commit_cb(const struct lu_env *env, struct thandle *txn,
375 struct lu_object *mdd_object_alloc(const struct lu_env *env,
376 const struct lu_object_header *hdr,
377 struct lu_device *d);
380 int accmode(const struct lu_env *env, struct lu_attr *la, int flags);
381 extern struct lu_context_key mdd_thread_key;
382 extern const struct lu_device_operations mdd_lu_ops;
384 struct mdd_object *mdd_object_find(const struct lu_env *env,
385 struct mdd_device *d,
386 const struct lu_fid *f);
388 /* mdd_permission.c */
389 #define mdd_cap_t(x) (x)
391 #define MDD_CAP_TO_MASK(x) (1 << (x))
393 #define mdd_cap_raised(c, flag) (mdd_cap_t(c) & MDD_CAP_TO_MASK(flag))
395 /* capable() is copied from linux kernel! */
396 static inline int mdd_capable(struct md_ucred *uc, cfs_cap_t cap)
398 if (mdd_cap_raised(uc->mu_cap, cap))
403 int mdd_def_acl_get(const struct lu_env *env, struct mdd_object *mdd_obj,
405 int mdd_acl_chmod(const struct lu_env *env, struct mdd_object *o, __u32 mode,
406 struct thandle *handle);
407 int __mdd_acl_init(const struct lu_env *env, struct mdd_object *obj,
408 struct lu_buf *buf, __u32 *mode, struct thandle *handle);
409 int __mdd_permission_internal(const struct lu_env *env, struct mdd_object *obj,
410 struct lu_attr *la, int mask, int role);
411 int mdd_permission(const struct lu_env *env,
412 struct md_object *pobj, struct md_object *cobj,
413 struct md_attr *ma, int mask);
414 int mdd_capa_get(const struct lu_env *env, struct md_object *obj,
415 struct lustre_capa *capa, int renewal);
417 static inline int lu_device_is_mdd(struct lu_device *d)
419 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &mdd_lu_ops);
422 static inline struct mdd_device* lu2mdd_dev(struct lu_device *d)
424 LASSERT(lu_device_is_mdd(d));
425 return container_of0(d, struct mdd_device, mdd_md_dev.md_lu_dev);
428 static inline struct lu_device *mdd2lu_dev(struct mdd_device *d)
430 return (&d->mdd_md_dev.md_lu_dev);
433 static inline struct mdd_object *lu2mdd_obj(struct lu_object *o)
435 LASSERT(ergo(o != NULL, lu_device_is_mdd(o->lo_dev)));
436 return container_of0(o, struct mdd_object, mod_obj.mo_lu);
439 static inline struct mdd_device* mdo2mdd(struct md_object *mdo)
441 return lu2mdd_dev(mdo->mo_lu.lo_dev);
444 static inline struct mdd_object* md2mdd_obj(struct md_object *mdo)
446 return container_of0(mdo, struct mdd_object, mod_obj);
449 static inline const struct dt_device_operations *
450 mdd_child_ops(struct mdd_device *d)
452 return d->mdd_child->dd_ops;
455 static inline struct lu_object *mdd2lu_obj(struct mdd_object *obj)
457 return &obj->mod_obj.mo_lu;
460 static inline struct dt_object* mdd_object_child(struct mdd_object *o)
462 return container_of0(lu_object_next(mdd2lu_obj(o)),
463 struct dt_object, do_lu);
466 static inline struct obd_device *mdd2obd_dev(struct mdd_device *mdd)
468 return mdd->mdd_obd_dev;
471 static inline struct mdd_device *mdd_obj2mdd_dev(struct mdd_object *obj)
473 return mdo2mdd(&obj->mod_obj);
476 static inline const struct lu_fid *mdo2fid(const struct mdd_object *obj)
478 return lu_object_fid(&obj->mod_obj.mo_lu);
481 static inline const struct dt_rec *__mdd_fid_rec(const struct lu_env *env,
482 const struct lu_fid *fid)
484 struct lu_fid_pack *pack = &mdd_env_info(env)->mti_pack;
486 fid_pack(pack, fid, &mdd_env_info(env)->mti_fid2);
487 return (const struct dt_rec *)pack;
490 static inline umode_t mdd_object_type(const struct mdd_object *obj)
492 return lu_object_attr(&obj->mod_obj.mo_lu);
495 static inline int mdd_lov_mdsize(const struct lu_env *env,
496 struct mdd_device *mdd)
498 struct obd_device *obd = mdd2obd_dev(mdd);
499 return obd->u.mds.mds_max_mdsize;
502 static inline int mdd_lov_cookiesize(const struct lu_env *env,
503 struct mdd_device *mdd)
505 struct obd_device *obd = mdd2obd_dev(mdd);
506 return obd->u.mds.mds_max_cookiesize;
509 static inline int mdd_is_immutable(struct mdd_object *obj)
511 return obj->mod_flags & IMMUTE_OBJ;
514 static inline int mdd_is_dead_obj(struct mdd_object *obj)
516 return obj && obj->mod_flags & DEAD_OBJ;
519 static inline int mdd_is_append(struct mdd_object *obj)
521 return obj->mod_flags & APPEND_OBJ;
524 static inline int mdd_is_mnlink(struct mdd_object *obj)
526 return obj->mod_flags & MNLINK_OBJ;
529 static inline int mdd_object_exists(struct mdd_object *obj)
531 return lu_object_exists(mdd2lu_obj(obj));
534 static inline const struct lu_fid *mdd_object_fid(struct mdd_object *obj)
536 return lu_object_fid(mdd2lu_obj(obj));
539 static inline struct lustre_capa *mdd_object_capa(const struct lu_env *env,
540 const struct mdd_object *obj)
542 struct md_capainfo *ci = md_capainfo(env);
543 const struct lu_fid *fid = mdo2fid(obj);
546 /* NB: in mdt_init0 */
549 for (i = 0; i < MD_CAPAINFO_MAX; i++)
550 if (ci->mc_fid[i] && lu_fid_eq(ci->mc_fid[i], fid))
551 return ci->mc_capa[i];
555 static inline void mdd_set_capainfo(const struct lu_env *env, int offset,
556 const struct mdd_object *obj,
557 struct lustre_capa *capa)
559 struct md_capainfo *ci = md_capainfo(env);
560 const struct lu_fid *fid = mdo2fid(obj);
562 LASSERT(offset >= 0 && offset <= MD_CAPAINFO_MAX);
563 /* NB: in mdt_init0 */
566 ci->mc_fid[offset] = fid;
567 ci->mc_capa[offset] = capa;
570 #define MAX_ATIME_DIFF 60
576 static inline int mdd_permission_internal(const struct lu_env *env,
577 struct mdd_object *obj,
578 struct lu_attr *la, int mask)
580 return __mdd_permission_internal(env, obj, la, mask, -1);
583 static inline int mdd_permission_internal_locked(const struct lu_env *env,
584 struct mdd_object *obj,
585 struct lu_attr *la, int mask,
586 enum mdd_object_role role)
588 return __mdd_permission_internal(env, obj, la, mask, role);
591 /* mdd inline func for calling osd_dt_object ops */
592 static inline int mdo_attr_get(const struct lu_env *env, struct mdd_object *obj,
593 struct lu_attr *la, struct lustre_capa *capa)
595 struct dt_object *next = mdd_object_child(obj);
596 return next->do_ops->do_attr_get(env, next, la, capa);
599 static inline int mdo_attr_set(const struct lu_env *env, struct mdd_object *obj,
600 const struct lu_attr *la, struct thandle *handle,
601 struct lustre_capa *capa)
603 struct dt_object *next = mdd_object_child(obj);
604 LASSERT(mdd_object_exists(obj));
605 return next->do_ops->do_attr_set(env, next, la, handle, capa);
608 static inline int mdo_xattr_get(const struct lu_env *env,struct mdd_object *obj,
609 struct lu_buf *buf, const char *name,
610 struct lustre_capa *capa)
612 struct dt_object *next = mdd_object_child(obj);
613 return next->do_ops->do_xattr_get(env, next, buf, name, capa);
616 static inline int mdo_xattr_set(const struct lu_env *env,struct mdd_object *obj,
617 const struct lu_buf *buf, const char *name,
618 int fl, struct thandle *handle,
619 struct lustre_capa *capa)
621 struct dt_object *next = mdd_object_child(obj);
622 LASSERT(mdd_object_exists(obj));
623 return next->do_ops->do_xattr_set(env, next, buf, name, fl, handle,
627 static inline int mdo_xattr_del(const struct lu_env *env,struct mdd_object *obj,
628 const char *name, struct thandle *handle,
629 struct lustre_capa *capa)
631 struct dt_object *next = mdd_object_child(obj);
632 LASSERT(mdd_object_exists(obj));
633 return next->do_ops->do_xattr_del(env, next, name, handle, capa);
637 int mdo_xattr_list(const struct lu_env *env, struct mdd_object *obj,
638 struct lu_buf *buf, struct lustre_capa *capa)
640 struct dt_object *next = mdd_object_child(obj);
641 LASSERT(mdd_object_exists(obj));
642 return next->do_ops->do_xattr_list(env, next, buf, capa);
646 int mdo_index_try(const struct lu_env *env, struct mdd_object *obj,
647 const struct dt_index_features *feat)
649 struct dt_object *next = mdd_object_child(obj);
650 return next->do_ops->do_index_try(env, next, feat);
653 static inline void mdo_ref_add(const struct lu_env *env, struct mdd_object *obj,
654 struct thandle *handle)
656 struct dt_object *next = mdd_object_child(obj);
657 LASSERT(mdd_object_exists(obj));
658 return next->do_ops->do_ref_add(env, next, handle);
661 static inline void mdo_ref_del(const struct lu_env *env, struct mdd_object *obj,
662 struct thandle *handle)
664 struct dt_object *next = mdd_object_child(obj);
665 LASSERT(mdd_object_exists(obj));
666 return next->do_ops->do_ref_del(env, next, handle);
670 int mdo_create_obj(const struct lu_env *env, struct mdd_object *o,
671 struct lu_attr *attr,
672 struct dt_allocation_hint *hint,
673 struct dt_object_format *dof,
674 struct thandle *handle)
676 struct dt_object *next = mdd_object_child(o);
677 return next->do_ops->do_create(env, next, attr, hint, dof, handle);
680 static inline struct obd_capa *mdo_capa_get(const struct lu_env *env,
681 struct mdd_object *obj,
682 struct lustre_capa *old,
685 struct dt_object *next = mdd_object_child(obj);
686 LASSERT(mdd_object_exists(obj));
687 return next->do_ops->do_capa_get(env, next, old, opc);