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;
97 unsigned int mc_deniednext; /* interval for recording denied
102 static inline __u64 cl_time(void)
104 struct timespec64 time;
106 ktime_get_real_ts64(&time);
107 return (((__u64)time.tv_sec) << 30) + time.tv_nsec;
110 /** Objects in .lustre dir */
111 struct mdd_dot_lustre_objs {
112 struct mdd_object *mdd_obf;
113 struct mdd_object *mdd_lpf;
116 struct mdd_generic_thread {
117 struct completion mgt_started;
118 struct completion mgt_finished;
125 struct md_device mdd_md_dev;
126 struct obd_export *mdd_child_exp;
127 struct dt_device *mdd_child;
128 struct dt_device *mdd_bottom;
129 struct lu_fid mdd_root_fid; /* /ROOT */
130 struct lu_fid mdd_local_root_fid;
131 struct dt_device_param mdd_dt_conf;
132 struct dt_object *mdd_orphans; /* PENDING directory */
133 struct proc_dir_entry *mdd_proc_entry;
134 struct mdd_changelog mdd_cl;
135 unsigned int mdd_changelog_gc;
136 time64_t mdd_changelog_max_idle_time;
137 unsigned long mdd_changelog_max_idle_indexes;
138 time64_t mdd_changelog_min_gc_interval;
139 unsigned int mdd_changelog_min_free_cat_entries;
140 time64_t mdd_atime_diff;
141 struct mdd_object *mdd_dot_lustre;
142 struct mdd_dot_lustre_objs mdd_dot_lustre_objs;
143 unsigned int mdd_sync_permission;
145 struct local_oid_storage *mdd_los;
146 struct mdd_generic_thread mdd_orphan_cleanup_thread;
150 /* The dir object has been unlinked */
153 VOLATILE_OBJ = 1 << 4,
157 struct md_object mod_obj;
162 unsigned long mod_flags;
163 struct list_head mod_users; /**< unique user opens */
166 struct mdd_thread_info {
167 struct lu_fid mti_fid;
168 struct lu_fid mti_fid2; /* used for be & cpu converting */
170 * only be used by MDD interfaces, can be passed into local MDD APIs.
172 struct lu_attr mti_pattr;
173 struct lu_attr mti_cattr;
174 struct lu_attr mti_tpattr;
175 struct lu_attr mti_tattr;
176 /** used to set c/mtime */
177 struct lu_attr mti_la_for_fix;
178 /* Only used in mdd_object_start */
179 struct lu_attr mti_la_for_start;
180 /* mti_ent and mti_key must be conjoint,
181 * then mti_ent::lde_name will be mti_key. */
182 struct lu_dirent mti_ent;
183 char mti_key[NAME_MAX + 16];
184 struct lu_buf mti_buf[4];
185 struct lu_buf mti_big_buf; /* biggish persistent buf */
186 struct lu_buf mti_link_buf; /* buf for link ea */
187 struct lu_buf mti_xattr_buf;
189 struct dt_allocation_hint mti_hint;
190 struct dt_object_format mti_dof;
191 struct linkea_data mti_link_data;
192 struct md_op_spec mti_spec;
193 struct dt_insert_rec mti_dt_rec;
194 struct lfsck_req_local mti_lrl;
195 struct lu_seq_range mti_range;
198 int mdd_la_get(const struct lu_env *env, struct mdd_object *obj,
200 int mdd_attr_get(const struct lu_env *env, struct md_object *obj,
202 int mdd_attr_set(const struct lu_env *env, struct md_object *obj,
203 const struct md_attr *ma);
204 int mdd_attr_set_internal(const struct lu_env *env,
205 struct mdd_object *obj,
206 const struct lu_attr *attr,
207 struct thandle *handle,
209 int mdd_update_time(const struct lu_env *env, struct mdd_object *obj,
210 const struct lu_attr *oattr, struct lu_attr *attr,
211 struct thandle *handle);
212 int mdd_create_object_internal(const struct lu_env *env, struct mdd_object *p,
213 struct mdd_object *c, struct lu_attr *attr,
214 struct thandle *handle,
215 const struct md_op_spec *spec,
216 struct dt_allocation_hint *hint);
219 void mdd_write_lock(const struct lu_env *env, struct mdd_object *obj,
220 enum mdd_object_role role);
221 void mdd_read_lock(const struct lu_env *env, struct mdd_object *obj,
222 enum mdd_object_role role);
223 void mdd_write_unlock(const struct lu_env *env, struct mdd_object *obj);
224 void mdd_read_unlock(const struct lu_env *env, struct mdd_object *obj);
225 int mdd_write_locked(const struct lu_env *env, struct mdd_object *obj);
228 int mdd_is_subdir(const struct lu_env *env, struct md_object *mo,
229 const struct lu_fid *fid, struct lu_fid *sfid);
230 int mdd_may_create(const struct lu_env *env, struct mdd_object *pobj,
231 const struct lu_attr *pattr, struct mdd_object *cobj,
233 int mdd_may_unlink(const struct lu_env *env, struct mdd_object *pobj,
234 const struct lu_attr *pattr, const struct lu_attr *attr);
235 int mdd_may_delete(const struct lu_env *env, struct mdd_object *tpobj,
236 const struct lu_attr *tpattr, struct mdd_object *tobj,
237 const struct lu_attr *tattr, const struct lu_attr *cattr,
238 int check_perm, int check_empty);
239 int mdd_unlink_sanity_check(const struct lu_env *env, struct mdd_object *pobj,
240 const struct lu_attr *pattr,
241 struct mdd_object *cobj,
242 const struct lu_attr *cattr);
243 int mdd_finish_unlink(const struct lu_env *env, struct mdd_object *obj,
244 struct md_attr *ma, const struct mdd_object *pobj,
245 const struct lu_name *lname, struct thandle *th);
247 int mdd_is_root(struct mdd_device *mdd, const struct lu_fid *fid);
248 int mdd_lookup(const struct lu_env *env,
249 struct md_object *pobj, const struct lu_name *lname,
250 struct lu_fid* fid, struct md_op_spec *spec);
251 int mdd_links_write(const struct lu_env *env, struct mdd_object *mdd_obj,
252 struct linkea_data *ldata, struct thandle *handle);
253 struct lu_buf *mdd_links_get(const struct lu_env *env,
254 struct mdd_object *mdd_obj);
255 int mdd_links_rename(const struct lu_env *env,
256 struct mdd_object *mdd_obj,
257 const struct lu_fid *oldpfid,
258 const struct lu_name *oldlname,
259 const struct lu_fid *newpfid,
260 const struct lu_name *newlname,
261 struct thandle *handle,
262 struct linkea_data *ldata,
263 int first, int check);
265 struct mdd_thread_info *mdd_env_info(const struct lu_env *env);
267 #define MDD_ENV_VAR(env, var) (&mdd_env_info(env)->mti_##var)
269 struct lu_buf *mdd_buf_get(const struct lu_env *env, void *area, ssize_t len);
270 const struct lu_buf *mdd_buf_get_const(const struct lu_env *env,
271 const void *area, ssize_t len);
273 int mdd_orphan_cleanup(const struct lu_env *env, struct mdd_device *d);
274 int mdd_orphan_insert(const struct lu_env *env, struct mdd_object *obj,
275 struct thandle *thandle);
276 int mdd_orphan_delete(const struct lu_env *env, struct mdd_object *obj,
277 struct thandle *thandle);
278 int mdd_orphan_index_init(const struct lu_env *env, struct mdd_device *mdd);
279 void mdd_orphan_index_fini(const struct lu_env *env, struct mdd_device *mdd);
280 int mdd_orphan_declare_insert(const struct lu_env *env, struct mdd_object *obj,
281 umode_t mode, struct thandle *thandle);
282 int mdd_orphan_declare_delete(const struct lu_env *env, struct mdd_object *obj,
283 struct thandle *thandle);
286 int mdd_procfs_init(struct mdd_device *mdd, const char *name);
287 void mdd_procfs_fini(struct mdd_device *mdd);
290 extern struct kmem_cache *mdd_object_kmem;
291 extern const struct md_dir_operations mdd_dir_ops;
292 extern const struct md_object_operations mdd_obj_ops;
293 int mdd_readlink(const struct lu_env *env, struct md_object *obj,
295 int accmode(const struct lu_env *env, const struct lu_attr *la, int flags);
296 extern struct lu_context_key mdd_thread_key;
297 extern const struct lu_device_operations mdd_lu_ops;
299 struct mdd_object *mdd_object_find(const struct lu_env *env,
300 struct mdd_device *d,
301 const struct lu_fid *f);
302 int mdd_readpage(const struct lu_env *env, struct md_object *obj,
303 const struct lu_rdpg *rdpg);
304 int mdd_declare_changelog_store(const struct lu_env *env,
305 struct mdd_device *mdd,
306 enum changelog_rec_type type,
307 const struct lu_name *tname,
308 const struct lu_name *sname,
309 struct thandle *handle);
310 void mdd_changelog_rec_ext_jobid(struct changelog_rec *rec, const char *jobid);
311 void mdd_changelog_rec_ext_extra_flags(struct changelog_rec *rec, __u64 eflags);
312 void mdd_changelog_rec_extra_uidgid(struct changelog_rec *rec,
313 __u64 uid, __u64 gid);
314 void mdd_changelog_rec_extra_nid(struct changelog_rec *rec,
316 void mdd_changelog_rec_extra_omode(struct changelog_rec *rec, int flags);
317 void mdd_changelog_rec_extra_xattr(struct changelog_rec *rec,
318 const char *xattr_name);
319 int mdd_changelog_store(const struct lu_env *env, struct mdd_device *mdd,
320 struct llog_changelog_rec *rec, struct thandle *th);
321 int mdd_changelog_data_store(const struct lu_env *env, struct mdd_device *mdd,
322 enum changelog_rec_type type, int flags,
323 struct mdd_object *mdd_obj,
324 struct thandle *handle);
325 int mdd_changelog_ns_store(const struct lu_env *env, struct mdd_device *mdd,
326 enum changelog_rec_type type,
327 enum changelog_rec_flags crf,
328 struct mdd_object *target,
329 const struct lu_fid *tpfid,
330 const struct lu_fid *sfid,
331 const struct lu_fid *spfid,
332 const struct lu_name *tname,
333 const struct lu_name *sname,
334 struct thandle *handle);
335 int mdd_invalidate(const struct lu_env *env, struct md_object *obj);
336 int mdd_declare_create_object_internal(const struct lu_env *env,
337 struct mdd_object *p,
338 struct mdd_object *c,
339 struct lu_attr *attr,
340 struct thandle *handle,
341 const struct md_op_spec *spec,
342 struct dt_allocation_hint *hint);
343 int mdd_get_lov_ea(const struct lu_env *env, struct mdd_object *obj,
344 struct lu_buf *lmm_buf);
347 void mdd_object_make_hint(const struct lu_env *env, struct mdd_object *parent,
348 struct mdd_object *child, const struct lu_attr *attr,
349 const struct md_op_spec *spec,
350 struct dt_allocation_hint *hint);
352 static inline void mdd_object_get(struct mdd_object *o)
354 lu_object_get(&o->mod_obj.mo_lu);
357 static inline void mdd_object_put(const struct lu_env *env,
358 struct mdd_object *o)
360 lu_object_put(env, &o->mod_obj.mo_lu);
363 struct thandle *mdd_trans_create(const struct lu_env *env,
364 struct mdd_device *mdd);
365 int mdd_trans_start(const struct lu_env *env, struct mdd_device *mdd,
367 int mdd_trans_stop(const struct lu_env *env, struct mdd_device *mdd,
368 int rc, struct thandle *handle);
371 struct lu_object *mdd_object_alloc(const struct lu_env *env,
372 const struct lu_object_header *hdr,
373 struct lu_device *d);
374 int mdd_local_file_create(const struct lu_env *env, struct mdd_device *mdd,
375 const struct lu_fid *pfid, const char *name,
376 __u32 mode, struct lu_fid *fid);
378 int mdd_acl_chmod(const struct lu_env *env, struct mdd_object *o, __u32 mode,
379 struct thandle *handle);
380 int mdd_acl_set(const struct lu_env *env, struct mdd_object *obj,
381 struct lu_attr *attr, const struct lu_buf *buf, int fl);
382 int __mdd_fix_mode_acl(const struct lu_env *env, struct lu_buf *buf,
384 int __mdd_permission_internal(const struct lu_env *env, struct mdd_object *obj,
385 const struct lu_attr *la, int mask, int role);
386 int mdd_permission(const struct lu_env *env,
387 struct md_object *pobj, struct md_object *cobj,
388 struct md_attr *ma, int mask);
389 int mdd_generic_thread_start(struct mdd_generic_thread *thread,
390 int (*func)(void *), void *data, char *name);
391 void mdd_generic_thread_stop(struct mdd_generic_thread *thread);
392 int mdd_changelog_user_purge(const struct lu_env *env, struct mdd_device *mdd,
396 int mdd_compat_fixes(const struct lu_env *env, struct mdd_device *mdd);
398 /* inline functions */
399 static inline int lu_device_is_mdd(struct lu_device *d)
401 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &mdd_lu_ops);
404 static inline struct mdd_device* lu2mdd_dev(struct lu_device *d)
406 LASSERT(lu_device_is_mdd(d));
407 return container_of0(d, struct mdd_device, mdd_md_dev.md_lu_dev);
410 static inline struct lu_device *mdd2lu_dev(struct mdd_device *d)
412 return (&d->mdd_md_dev.md_lu_dev);
415 static inline struct mdd_object *lu2mdd_obj(struct lu_object *o)
417 LASSERT(ergo(o != NULL, lu_device_is_mdd(o->lo_dev)));
418 return container_of0(o, struct mdd_object, mod_obj.mo_lu);
421 static inline struct mdd_device* mdo2mdd(struct md_object *mdo)
423 return lu2mdd_dev(mdo->mo_lu.lo_dev);
426 static inline struct mdd_object* md2mdd_obj(struct md_object *mdo)
428 return container_of0(mdo, struct mdd_object, mod_obj);
431 static inline const struct dt_device_operations *
432 mdd_child_ops(struct mdd_device *d)
434 return d->mdd_child->dd_ops;
437 static inline struct lu_object *mdd2lu_obj(struct mdd_object *obj)
439 return &obj->mod_obj.mo_lu;
442 static inline struct dt_object* mdd_object_child(struct mdd_object *o)
444 return container_of0(lu_object_next(mdd2lu_obj(o)),
445 struct dt_object, do_lu);
448 static inline struct obd_device *mdd2obd_dev(struct mdd_device *mdd)
450 return (mdd->mdd_md_dev.md_lu_dev.ld_obd);
453 static inline struct mdd_device *mdd_obj2mdd_dev(struct mdd_object *obj)
455 return mdo2mdd(&obj->mod_obj);
458 static inline const struct lu_fid *mdo2fid(const struct mdd_object *obj)
460 return lu_object_fid(&obj->mod_obj.mo_lu);
463 static inline umode_t mdd_object_type(const struct mdd_object *obj)
465 return lu_object_attr(&obj->mod_obj.mo_lu);
468 static inline int mdd_is_dead_obj(struct mdd_object *obj)
470 return obj && obj->mod_flags & DEAD_OBJ;
473 static inline bool mdd_is_volatile_obj(struct mdd_object *obj)
475 return obj->mod_flags & VOLATILE_OBJ;
478 static inline int mdd_object_exists(struct mdd_object *obj)
480 return lu_object_exists(mdd2lu_obj(obj));
483 static inline int mdd_object_remote(struct mdd_object *obj)
485 return lu_object_remote(mdd2lu_obj(obj));
488 static inline const struct lu_fid *mdd_object_fid(struct mdd_object *obj)
490 return lu_object_fid(mdd2lu_obj(obj));
493 static inline struct seq_server_site *mdd_seq_site(struct mdd_device *mdd)
495 return mdd2lu_dev(mdd)->ld_site->ld_seq_site;
498 static inline const char *mdd_obj_dev_name(const struct mdd_object *obj)
500 return lu_dev_name(obj->mod_obj.mo_lu.lo_dev);
503 #define MAX_ATIME_DIFF 60
505 static inline int mdd_permission_internal(const struct lu_env *env,
506 struct mdd_object *obj,
507 const struct lu_attr *la, int mask)
509 return __mdd_permission_internal(env, obj, la, mask, -1);
512 static inline int mdd_permission_internal_locked(const struct lu_env *env,
513 struct mdd_object *obj,
514 const struct lu_attr *la,
516 enum mdd_object_role role)
518 return __mdd_permission_internal(env, obj, la, mask, role);
521 /* mdd inline func for calling osd_dt_object ops */
522 static inline int mdo_attr_get(const struct lu_env *env, struct mdd_object *obj,
525 struct dt_object *next = mdd_object_child(obj);
526 return dt_attr_get(env, next, la);
529 static inline int mdo_declare_attr_set(const struct lu_env *env,
530 struct mdd_object *obj,
531 const struct lu_attr *la,
532 struct thandle *handle)
534 struct dt_object *next = mdd_object_child(obj);
535 return dt_declare_attr_set(env, next, la, handle);
538 static inline int mdo_attr_set(const struct lu_env *env,
539 struct mdd_object *obj,
540 const struct lu_attr *la,
541 struct thandle *handle)
543 struct dt_object *next = mdd_object_child(obj);
545 if (!mdd_object_exists(obj))
548 return dt_attr_set(env, next, la, handle);
551 static inline int mdo_xattr_get(const struct lu_env *env,struct mdd_object *obj,
552 struct lu_buf *buf, const char *name)
554 struct dt_object *next = mdd_object_child(obj);
555 return dt_xattr_get(env, next, buf, name);
558 static inline int mdo_declare_xattr_set(const struct lu_env *env,
559 struct mdd_object *obj,
560 const struct lu_buf *buf,
562 int fl, struct thandle *handle)
564 struct dt_object *next = mdd_object_child(obj);
565 return dt_declare_xattr_set(env, next, buf, name, fl, handle);
568 static inline int mdo_xattr_set(const struct lu_env *env,struct mdd_object *obj,
569 const struct lu_buf *buf, const char *name,
570 int fl, struct thandle *handle)
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);
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)
592 struct dt_object *next = mdd_object_child(obj);
594 if (!mdd_object_exists(obj))
597 return dt_xattr_del(env, next, name, handle);
601 mdo_xattr_list(const struct lu_env *env, struct mdd_object *obj,
604 struct dt_object *next = mdd_object_child(obj);
606 if (!mdd_object_exists(obj))
609 return dt_xattr_list(env, next, buf);
613 mdo_invalidate(const struct lu_env *env, struct mdd_object *obj)
615 return dt_invalidate(env, mdd_object_child(obj));
619 mdo_declare_layout_change(const struct lu_env *env, struct mdd_object *obj,
620 struct md_layout_change *mlc, struct thandle *handle)
622 return dt_declare_layout_change(env, mdd_object_child(obj),
627 mdo_layout_change(const struct lu_env *env, struct mdd_object *obj,
628 struct md_layout_change *mlc, struct thandle *handle)
630 return dt_layout_change(env, mdd_object_child(obj), mlc, handle);
634 int mdo_declare_index_insert(const struct lu_env *env, struct mdd_object *obj,
635 const struct lu_fid *fid, __u32 type,
636 const char *name, struct thandle *handle)
638 struct dt_object *next = mdd_object_child(obj);
642 * if the object doesn't exist yet, then it's supposed to be created
643 * and declaration of the creation should be enough to insert ./..
647 if (dt_try_as_dir(env, next)) {
648 struct dt_insert_rec *rec = &mdd_env_info(env)->mti_dt_rec;
651 rec->rec_type = type;
652 rc = dt_declare_insert(env, next, (const struct dt_rec *)rec,
653 (const struct dt_key *)name, handle);
660 int mdo_declare_index_delete(const struct lu_env *env, struct mdd_object *obj,
661 const char *name, struct thandle *handle)
663 struct dt_object *next = mdd_object_child(obj);
665 if (!dt_try_as_dir(env, next))
668 return dt_declare_delete(env, next, (const struct dt_key *)name,
672 static inline int mdo_declare_ref_add(const struct lu_env *env,
673 struct mdd_object *obj,
674 struct thandle *handle)
676 struct dt_object *next = mdd_object_child(obj);
677 return dt_declare_ref_add(env, next, handle);
680 static inline int mdo_ref_add(const struct lu_env *env, struct mdd_object *obj,
681 struct thandle *handle)
683 struct dt_object *next = mdd_object_child(obj);
685 if (!mdd_object_exists(obj))
688 return dt_ref_add(env, next, handle);
691 static inline int mdo_declare_ref_del(const struct lu_env *env,
692 struct mdd_object *obj,
693 struct thandle *handle)
695 struct dt_object *next = mdd_object_child(obj);
696 return dt_declare_ref_del(env, next, handle);
699 static inline int mdo_ref_del(const struct lu_env *env, struct mdd_object *obj,
700 struct thandle *handle)
702 struct dt_object *next = mdd_object_child(obj);
704 if (!mdd_object_exists(obj))
707 return dt_ref_del(env, next, handle);
711 mdo_declare_create_object(const struct lu_env *env, struct mdd_object *obj,
712 struct lu_attr *attr, struct dt_allocation_hint *hint,
713 struct dt_object_format *dof, struct thandle *handle)
715 struct dt_object *next = mdd_object_child(obj);
716 return dt_declare_create(env, next, attr, hint, dof, handle);
720 mdo_create_object(const struct lu_env *env, struct mdd_object *obj,
721 struct lu_attr *attr, struct dt_allocation_hint *hint,
722 struct dt_object_format *dof, struct thandle *handle)
724 struct dt_object *next = mdd_object_child(obj);
725 return dt_create(env, next, attr, hint, dof, handle);
729 int mdo_declare_destroy(const struct lu_env *env, struct mdd_object *o,
730 struct thandle *handle)
732 struct dt_object *next = mdd_object_child(o);
733 return dt_declare_destroy(env, next, handle);
737 int mdo_destroy(const struct lu_env *env, struct mdd_object *o,
738 struct thandle *handle)
740 struct dt_object *next = mdd_object_child(o);
741 return dt_destroy(env, next, handle);
744 static inline bool mdd_changelog_enabled(const struct lu_env *env,
745 struct mdd_device *mdd,
746 enum changelog_rec_type type)
748 const struct lu_ucred *uc;
750 if ((mdd->mdd_cl.mc_flags & CLM_ON) &&
751 (mdd->mdd_cl.mc_mask & (1 << type))) {
752 uc = lu_ucred_check(env);
754 return uc != NULL ? uc->uc_enable_audit : true;