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))
86 /* mc_gc_task values */
87 /** no GC thread to be started **/
88 #define MDD_CHLG_GC_NONE NULL
89 /** a GC thread need to be started **/
90 #define MDD_CHLG_GC_NEED (struct task_struct *)(-1)
91 /** a GC thread will be started now **/
92 #define MDD_CHLG_GC_START (struct task_struct *)(-2)
93 /** else the started task_struct address when running **/
95 struct mdd_changelog {
96 spinlock_t mc_lock; /* for index */
100 ktime_t mc_starttime;
101 spinlock_t mc_user_lock;
103 int mc_users; /* registered users number */
104 struct task_struct *mc_gc_task;
105 time64_t mc_gc_time; /* last GC check or run time */
106 unsigned int mc_deniednext; /* interval for recording denied
111 static inline __u64 cl_time(void)
113 struct timespec64 time;
115 ktime_get_real_ts64(&time);
116 return (((__u64)time.tv_sec) << 30) + time.tv_nsec;
119 /** Objects in .lustre dir */
120 struct mdd_dot_lustre_objs {
121 struct mdd_object *mdd_obf;
122 struct mdd_object *mdd_lpf;
125 struct mdd_generic_thread {
126 struct completion mgt_started;
127 struct completion mgt_finished;
134 struct md_device mdd_md_dev;
135 struct obd_export *mdd_child_exp;
136 struct dt_device *mdd_child;
137 struct dt_device *mdd_bottom;
138 struct lu_fid mdd_root_fid; /* /ROOT */
139 struct lu_fid mdd_local_root_fid;
140 struct dt_device_param mdd_dt_conf;
141 struct dt_object *mdd_orphans; /* PENDING directory */
142 struct proc_dir_entry *mdd_proc_entry;
143 struct mdd_changelog mdd_cl;
144 unsigned int mdd_changelog_gc;
145 time64_t mdd_changelog_max_idle_time;
146 unsigned long mdd_changelog_max_idle_indexes;
147 time64_t mdd_changelog_min_gc_interval;
148 unsigned int mdd_changelog_min_free_cat_entries;
149 time64_t mdd_atime_diff;
150 struct mdd_object *mdd_dot_lustre;
151 struct mdd_dot_lustre_objs mdd_dot_lustre_objs;
152 unsigned int mdd_sync_permission;
154 struct local_oid_storage *mdd_los;
155 struct mdd_generic_thread mdd_orphan_cleanup_thread;
159 /* The dir object has been unlinked */
162 VOLATILE_OBJ = 1 << 4,
166 struct md_object mod_obj;
171 unsigned long mod_flags;
172 struct list_head mod_users; /**< unique user opens */
175 struct mdd_thread_info {
176 struct lu_fid mti_fid;
177 struct lu_fid mti_fid2; /* used for be & cpu converting */
179 * only be used by MDD interfaces, can be passed into local MDD APIs.
181 struct lu_attr mti_pattr;
182 struct lu_attr mti_cattr;
183 struct lu_attr mti_tpattr;
184 struct lu_attr mti_tattr;
185 /** used to set c/mtime */
186 struct lu_attr mti_la_for_fix;
187 /* Only used in mdd_object_start */
188 struct lu_attr mti_la_for_start;
189 /* mti_ent and mti_key must be conjoint,
190 * then mti_ent::lde_name will be mti_key. */
191 struct lu_dirent mti_ent;
192 char mti_key[NAME_MAX + 16];
193 char mti_name[NAME_MAX + 1];
194 struct lu_buf mti_buf[4];
195 struct lu_buf mti_big_buf; /* biggish persistent buf */
196 struct lu_buf mti_link_buf; /* buf for link ea */
197 struct lu_buf mti_xattr_buf;
199 struct lmv_user_md mti_lmu;
200 struct dt_allocation_hint mti_hint;
201 struct dt_object_format mti_dof;
202 struct linkea_data mti_link_data;
203 struct md_op_spec mti_spec;
204 struct dt_insert_rec mti_dt_rec;
205 struct lfsck_req_local mti_lrl;
206 struct lu_seq_range mti_range;
209 int mdd_la_get(const struct lu_env *env, struct mdd_object *obj,
211 int mdd_attr_get(const struct lu_env *env, struct md_object *obj,
213 int mdd_attr_set(const struct lu_env *env, struct md_object *obj,
214 const struct md_attr *ma);
215 int mdd_attr_set_internal(const struct lu_env *env,
216 struct mdd_object *obj,
217 const struct lu_attr *attr,
218 struct thandle *handle,
220 int mdd_update_time(const struct lu_env *env, struct mdd_object *obj,
221 const struct lu_attr *oattr, struct lu_attr *attr,
222 struct thandle *handle);
223 int mdd_create_object_internal(const struct lu_env *env, struct mdd_object *p,
224 struct mdd_object *c, struct lu_attr *attr,
225 struct thandle *handle,
226 const struct md_op_spec *spec,
227 struct dt_allocation_hint *hint);
230 void mdd_write_lock(const struct lu_env *env, struct mdd_object *obj,
231 enum mdd_object_role role);
232 void mdd_read_lock(const struct lu_env *env, struct mdd_object *obj,
233 enum mdd_object_role role);
234 void mdd_write_unlock(const struct lu_env *env, struct mdd_object *obj);
235 void mdd_read_unlock(const struct lu_env *env, struct mdd_object *obj);
236 int mdd_write_locked(const struct lu_env *env, struct mdd_object *obj);
239 int mdd_may_create(const struct lu_env *env, struct mdd_object *pobj,
240 const struct lu_attr *pattr, struct mdd_object *cobj,
242 int mdd_may_unlink(const struct lu_env *env, struct mdd_object *pobj,
243 const struct lu_attr *pattr, const struct lu_attr *attr);
244 int mdd_may_delete(const struct lu_env *env, struct mdd_object *tpobj,
245 const struct lu_attr *tpattr, struct mdd_object *tobj,
246 const struct lu_attr *tattr, const struct lu_attr *cattr,
247 int check_perm, int check_empty);
248 int mdd_unlink_sanity_check(const struct lu_env *env, struct mdd_object *pobj,
249 const struct lu_attr *pattr,
250 struct mdd_object *cobj,
251 const struct lu_attr *cattr);
252 int mdd_finish_unlink(const struct lu_env *env, struct mdd_object *obj,
253 struct md_attr *ma, const struct mdd_object *pobj,
254 const struct lu_name *lname, struct thandle *th);
256 int mdd_is_root(struct mdd_device *mdd, const struct lu_fid *fid);
257 int mdd_lookup(const struct lu_env *env,
258 struct md_object *pobj, const struct lu_name *lname,
259 struct lu_fid* fid, struct md_op_spec *spec);
260 int mdd_links_write(const struct lu_env *env, struct mdd_object *mdd_obj,
261 struct linkea_data *ldata, struct thandle *handle);
262 struct lu_buf *mdd_links_get(const struct lu_env *env,
263 struct mdd_object *mdd_obj);
264 int mdd_links_rename(const struct lu_env *env,
265 struct mdd_object *mdd_obj,
266 const struct lu_fid *oldpfid,
267 const struct lu_name *oldlname,
268 const struct lu_fid *newpfid,
269 const struct lu_name *newlname,
270 struct thandle *handle,
271 struct linkea_data *ldata,
272 int first, int check);
274 struct mdd_thread_info *mdd_env_info(const struct lu_env *env);
276 #define MDD_ENV_VAR(env, var) (&mdd_env_info(env)->mti_##var)
278 struct lu_buf *mdd_buf_get(const struct lu_env *env, void *area, ssize_t len);
279 const struct lu_buf *mdd_buf_get_const(const struct lu_env *env,
280 const void *area, ssize_t len);
282 int mdd_orphan_cleanup(const struct lu_env *env, struct mdd_device *d);
283 int mdd_orphan_insert(const struct lu_env *env, struct mdd_object *obj,
284 struct thandle *thandle);
285 int mdd_orphan_delete(const struct lu_env *env, struct mdd_object *obj,
286 struct thandle *thandle);
287 int mdd_orphan_index_init(const struct lu_env *env, struct mdd_device *mdd);
288 void mdd_orphan_index_fini(const struct lu_env *env, struct mdd_device *mdd);
289 int mdd_orphan_declare_insert(const struct lu_env *env, struct mdd_object *obj,
290 umode_t mode, struct thandle *thandle);
291 int mdd_orphan_declare_delete(const struct lu_env *env, struct mdd_object *obj,
292 struct thandle *thandle);
295 int mdd_procfs_init(struct mdd_device *mdd, const char *name);
296 void mdd_procfs_fini(struct mdd_device *mdd);
299 extern struct kmem_cache *mdd_object_kmem;
300 extern const struct md_dir_operations mdd_dir_ops;
301 extern const struct md_object_operations mdd_obj_ops;
302 int mdd_readlink(const struct lu_env *env, struct md_object *obj,
304 int accmode(const struct lu_env *env, const struct lu_attr *la, int flags);
305 extern struct lu_context_key mdd_thread_key;
306 extern const struct lu_device_operations mdd_lu_ops;
308 struct mdd_object *mdd_object_find(const struct lu_env *env,
309 struct mdd_device *d,
310 const struct lu_fid *f);
311 int mdd_readpage(const struct lu_env *env, struct md_object *obj,
312 const struct lu_rdpg *rdpg);
313 int mdd_declare_changelog_store(const struct lu_env *env,
314 struct mdd_device *mdd,
315 enum changelog_rec_type type,
316 const struct lu_name *tname,
317 const struct lu_name *sname,
318 struct thandle *handle);
319 void mdd_changelog_rec_ext_jobid(struct changelog_rec *rec, const char *jobid);
320 void mdd_changelog_rec_ext_extra_flags(struct changelog_rec *rec, __u64 eflags);
321 void mdd_changelog_rec_extra_uidgid(struct changelog_rec *rec,
322 __u64 uid, __u64 gid);
323 void mdd_changelog_rec_extra_nid(struct changelog_rec *rec,
325 void mdd_changelog_rec_extra_omode(struct changelog_rec *rec, int flags);
326 void mdd_changelog_rec_extra_xattr(struct changelog_rec *rec,
327 const char *xattr_name);
328 int mdd_changelog_store(const struct lu_env *env, struct mdd_device *mdd,
329 struct llog_changelog_rec *rec, struct thandle *th);
330 int mdd_changelog_data_store(const struct lu_env *env, struct mdd_device *mdd,
331 enum changelog_rec_type type, int flags,
332 struct mdd_object *mdd_obj,
333 struct thandle *handle);
334 int mdd_changelog_ns_store(const struct lu_env *env, struct mdd_device *mdd,
335 enum changelog_rec_type type,
336 enum changelog_rec_flags crf,
337 struct mdd_object *target,
338 const struct lu_fid *tpfid,
339 const struct lu_fid *sfid,
340 const struct lu_fid *spfid,
341 const struct lu_name *tname,
342 const struct lu_name *sname,
343 struct thandle *handle);
344 int mdd_invalidate(const struct lu_env *env, struct md_object *obj);
345 int mdd_declare_create_object_internal(const struct lu_env *env,
346 struct mdd_object *p,
347 struct mdd_object *c,
348 struct lu_attr *attr,
349 struct thandle *handle,
350 const struct md_op_spec *spec,
351 struct dt_allocation_hint *hint);
352 int mdd_stripe_get(const struct lu_env *env, struct mdd_object *obj,
353 struct lu_buf *lmm_buf, const char *name);
356 void mdd_object_make_hint(const struct lu_env *env, struct mdd_object *parent,
357 struct mdd_object *child, const struct lu_attr *attr,
358 const struct md_op_spec *spec,
359 struct dt_allocation_hint *hint);
361 static inline void mdd_object_get(struct mdd_object *o)
363 lu_object_get(&o->mod_obj.mo_lu);
366 static inline void mdd_object_put(const struct lu_env *env,
367 struct mdd_object *o)
369 lu_object_put(env, &o->mod_obj.mo_lu);
372 struct thandle *mdd_trans_create(const struct lu_env *env,
373 struct mdd_device *mdd);
374 int mdd_trans_start(const struct lu_env *env, struct mdd_device *mdd,
376 int mdd_trans_stop(const struct lu_env *env, struct mdd_device *mdd,
377 int rc, struct thandle *handle);
380 struct lu_object *mdd_object_alloc(const struct lu_env *env,
381 const struct lu_object_header *hdr,
382 struct lu_device *d);
383 int mdd_local_file_create(const struct lu_env *env, struct mdd_device *mdd,
384 const struct lu_fid *pfid, const char *name,
385 __u32 mode, struct lu_fid *fid);
387 int mdd_acl_chmod(const struct lu_env *env, struct mdd_object *o, __u32 mode,
388 struct thandle *handle);
389 int mdd_acl_set(const struct lu_env *env, struct mdd_object *obj,
390 struct lu_attr *attr, const struct lu_buf *buf, int fl);
391 int __mdd_fix_mode_acl(const struct lu_env *env, struct lu_buf *buf,
393 int __mdd_permission_internal(const struct lu_env *env, struct mdd_object *obj,
394 const struct lu_attr *la, int mask, int role);
395 int mdd_permission(const struct lu_env *env,
396 struct md_object *pobj, struct md_object *cobj,
397 struct md_attr *ma, int mask);
398 int mdd_generic_thread_start(struct mdd_generic_thread *thread,
399 int (*func)(void *), void *data, char *name);
400 void mdd_generic_thread_stop(struct mdd_generic_thread *thread);
401 int mdd_changelog_user_purge(const struct lu_env *env, struct mdd_device *mdd,
405 int mdd_compat_fixes(const struct lu_env *env, struct mdd_device *mdd);
407 /* inline functions */
408 static inline int lu_device_is_mdd(struct lu_device *d)
410 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &mdd_lu_ops);
413 static inline struct mdd_device* lu2mdd_dev(struct lu_device *d)
415 LASSERT(lu_device_is_mdd(d));
416 return container_of0(d, struct mdd_device, mdd_md_dev.md_lu_dev);
419 static inline struct lu_device *mdd2lu_dev(struct mdd_device *d)
421 return (&d->mdd_md_dev.md_lu_dev);
424 static inline struct mdd_object *lu2mdd_obj(struct lu_object *o)
426 LASSERT(ergo(o != NULL, lu_device_is_mdd(o->lo_dev)));
427 return container_of0(o, struct mdd_object, mod_obj.mo_lu);
430 static inline struct mdd_device* mdo2mdd(struct md_object *mdo)
432 return lu2mdd_dev(mdo->mo_lu.lo_dev);
435 static inline struct mdd_object* md2mdd_obj(struct md_object *mdo)
437 return container_of0(mdo, struct mdd_object, mod_obj);
440 static inline const struct dt_device_operations *
441 mdd_child_ops(struct mdd_device *d)
443 return d->mdd_child->dd_ops;
446 static inline struct lu_object *mdd2lu_obj(struct mdd_object *obj)
448 return &obj->mod_obj.mo_lu;
451 static inline struct dt_object* mdd_object_child(struct mdd_object *o)
453 return container_of0(lu_object_next(mdd2lu_obj(o)),
454 struct dt_object, do_lu);
457 static inline struct obd_device *mdd2obd_dev(struct mdd_device *mdd)
459 return (mdd->mdd_md_dev.md_lu_dev.ld_obd);
462 static inline struct mdd_device *mdd_obj2mdd_dev(struct mdd_object *obj)
464 return mdo2mdd(&obj->mod_obj);
467 static inline const struct lu_fid *mdo2fid(const struct mdd_object *obj)
469 return lu_object_fid(&obj->mod_obj.mo_lu);
472 static inline umode_t mdd_object_type(const struct mdd_object *obj)
474 return lu_object_attr(&obj->mod_obj.mo_lu);
477 static inline int mdd_is_dead_obj(struct mdd_object *obj)
479 return obj && obj->mod_flags & DEAD_OBJ;
482 static inline bool mdd_is_volatile_obj(struct mdd_object *obj)
484 return obj->mod_flags & VOLATILE_OBJ;
487 static inline int mdd_object_exists(struct mdd_object *obj)
489 return lu_object_exists(mdd2lu_obj(obj));
492 static inline int mdd_object_remote(struct mdd_object *obj)
494 return lu_object_remote(mdd2lu_obj(obj));
497 static inline const struct lu_fid *mdd_object_fid(struct mdd_object *obj)
499 return lu_object_fid(mdd2lu_obj(obj));
502 static inline struct seq_server_site *mdd_seq_site(struct mdd_device *mdd)
504 return mdd2lu_dev(mdd)->ld_site->ld_seq_site;
507 static inline const char *mdd_obj_dev_name(const struct mdd_object *obj)
509 return lu_dev_name(obj->mod_obj.mo_lu.lo_dev);
512 #define MAX_ATIME_DIFF 60
514 static inline int mdd_permission_internal(const struct lu_env *env,
515 struct mdd_object *obj,
516 const struct lu_attr *la, int mask)
518 return __mdd_permission_internal(env, obj, la, mask, -1);
521 static inline int mdd_permission_internal_locked(const struct lu_env *env,
522 struct mdd_object *obj,
523 const struct lu_attr *la,
525 enum mdd_object_role role)
527 return __mdd_permission_internal(env, obj, la, mask, role);
530 /* mdd inline func for calling osd_dt_object ops */
531 static inline int mdo_attr_get(const struct lu_env *env, struct mdd_object *obj,
534 struct dt_object *next = mdd_object_child(obj);
535 return dt_attr_get(env, next, la);
538 static inline int mdo_declare_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);
544 return dt_declare_attr_set(env, next, la, handle);
547 static inline int mdo_attr_set(const struct lu_env *env,
548 struct mdd_object *obj,
549 const struct lu_attr *la,
550 struct thandle *handle)
552 struct dt_object *next = mdd_object_child(obj);
554 if (!mdd_object_exists(obj))
557 return dt_attr_set(env, next, la, handle);
560 static inline int mdo_xattr_get(const struct lu_env *env,struct mdd_object *obj,
561 struct lu_buf *buf, const char *name)
563 struct dt_object *next = mdd_object_child(obj);
564 return dt_xattr_get(env, next, buf, name);
567 static inline int mdo_declare_xattr_set(const struct lu_env *env,
568 struct mdd_object *obj,
569 const struct lu_buf *buf,
571 int fl, struct thandle *handle)
573 struct dt_object *next = mdd_object_child(obj);
574 return dt_declare_xattr_set(env, next, buf, name, fl, handle);
577 static inline int mdo_xattr_set(const struct lu_env *env,struct mdd_object *obj,
578 const struct lu_buf *buf, const char *name,
579 int fl, struct thandle *handle)
581 struct dt_object *next = mdd_object_child(obj);
583 if (!mdd_object_exists(obj))
586 return dt_xattr_set(env, next, buf, name, fl, handle);
589 static inline int mdo_declare_xattr_del(const struct lu_env *env,
590 struct mdd_object *obj,
592 struct thandle *handle)
594 struct dt_object *next = mdd_object_child(obj);
595 return dt_declare_xattr_del(env, next, name, handle);
598 static inline int mdo_xattr_del(const struct lu_env *env,struct mdd_object *obj,
599 const char *name, struct thandle *handle)
601 struct dt_object *next = mdd_object_child(obj);
603 if (!mdd_object_exists(obj))
606 return dt_xattr_del(env, next, name, handle);
610 mdo_xattr_list(const struct lu_env *env, struct mdd_object *obj,
613 struct dt_object *next = mdd_object_child(obj);
615 if (!mdd_object_exists(obj))
618 return dt_xattr_list(env, next, buf);
622 mdo_invalidate(const struct lu_env *env, struct mdd_object *obj)
624 return dt_invalidate(env, mdd_object_child(obj));
628 mdo_declare_layout_change(const struct lu_env *env, struct mdd_object *obj,
629 struct md_layout_change *mlc, struct thandle *handle)
631 return dt_declare_layout_change(env, mdd_object_child(obj),
636 mdo_layout_change(const struct lu_env *env, struct mdd_object *obj,
637 struct md_layout_change *mlc, struct thandle *handle)
639 return dt_layout_change(env, mdd_object_child(obj), mlc, handle);
643 int mdo_declare_index_insert(const struct lu_env *env, struct mdd_object *obj,
644 const struct lu_fid *fid, __u32 type,
645 const char *name, struct thandle *handle)
647 struct dt_object *next = mdd_object_child(obj);
651 * if the object doesn't exist yet, then it's supposed to be created
652 * and declaration of the creation should be enough to insert ./..
656 if (dt_try_as_dir(env, next)) {
657 struct dt_insert_rec *rec = &mdd_env_info(env)->mti_dt_rec;
660 rec->rec_type = type;
661 rc = dt_declare_insert(env, next, (const struct dt_rec *)rec,
662 (const struct dt_key *)name, handle);
669 int mdo_declare_index_delete(const struct lu_env *env, struct mdd_object *obj,
670 const char *name, struct thandle *handle)
672 struct dt_object *next = mdd_object_child(obj);
674 if (!dt_try_as_dir(env, next))
677 return dt_declare_delete(env, next, (const struct dt_key *)name,
681 static inline int mdo_declare_ref_add(const struct lu_env *env,
682 struct mdd_object *obj,
683 struct thandle *handle)
685 struct dt_object *next = mdd_object_child(obj);
686 return dt_declare_ref_add(env, next, handle);
689 static inline int mdo_ref_add(const struct lu_env *env, struct mdd_object *obj,
690 struct thandle *handle)
692 struct dt_object *next = mdd_object_child(obj);
694 if (!mdd_object_exists(obj))
697 return dt_ref_add(env, next, handle);
700 static inline int mdo_declare_ref_del(const struct lu_env *env,
701 struct mdd_object *obj,
702 struct thandle *handle)
704 struct dt_object *next = mdd_object_child(obj);
705 return dt_declare_ref_del(env, next, handle);
708 static inline int mdo_ref_del(const struct lu_env *env, struct mdd_object *obj,
709 struct thandle *handle)
711 struct dt_object *next = mdd_object_child(obj);
713 if (!mdd_object_exists(obj))
716 return dt_ref_del(env, next, handle);
720 mdo_declare_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_declare_create(env, next, attr, hint, dof, handle);
729 mdo_create_object(const struct lu_env *env, struct mdd_object *obj,
730 struct lu_attr *attr, struct dt_allocation_hint *hint,
731 struct dt_object_format *dof, struct thandle *handle)
733 struct dt_object *next = mdd_object_child(obj);
734 return dt_create(env, next, attr, hint, dof, handle);
738 int mdo_declare_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_declare_destroy(env, next, handle);
746 int mdo_destroy(const struct lu_env *env, struct mdd_object *o,
747 struct thandle *handle)
749 struct dt_object *next = mdd_object_child(o);
750 return dt_destroy(env, next, handle);
753 static inline bool mdd_changelog_enabled(const struct lu_env *env,
754 struct mdd_device *mdd,
755 enum changelog_rec_type type)
757 const struct lu_ucred *uc;
759 if ((mdd->mdd_cl.mc_flags & CLM_ON) &&
760 (mdd->mdd_cl.mc_mask & (1 << type))) {
761 uc = lu_ucred_check(env);
763 return uc != NULL ? uc->uc_enable_audit : true;