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;
207 union lmv_mds_md mti_lmv;
210 int mdd_la_get(const struct lu_env *env, struct mdd_object *obj,
212 int mdd_attr_get(const struct lu_env *env, struct md_object *obj,
214 int mdd_attr_set(const struct lu_env *env, struct md_object *obj,
215 const struct md_attr *ma);
216 int mdd_attr_set_internal(const struct lu_env *env,
217 struct mdd_object *obj,
218 const struct lu_attr *attr,
219 struct thandle *handle,
221 int mdd_update_time(const struct lu_env *env, struct mdd_object *obj,
222 const struct lu_attr *oattr, struct lu_attr *attr,
223 struct thandle *handle);
224 int mdd_create_object_internal(const struct lu_env *env, struct mdd_object *p,
225 struct mdd_object *c, struct lu_attr *attr,
226 struct thandle *handle,
227 const struct md_op_spec *spec,
228 struct dt_allocation_hint *hint);
231 void mdd_write_lock(const struct lu_env *env, struct mdd_object *obj,
232 enum mdd_object_role role);
233 void mdd_read_lock(const struct lu_env *env, struct mdd_object *obj,
234 enum mdd_object_role role);
235 void mdd_write_unlock(const struct lu_env *env, struct mdd_object *obj);
236 void mdd_read_unlock(const struct lu_env *env, struct mdd_object *obj);
237 int mdd_write_locked(const struct lu_env *env, struct mdd_object *obj);
240 int mdd_may_create(const struct lu_env *env, struct mdd_object *pobj,
241 const struct lu_attr *pattr, struct mdd_object *cobj,
243 int mdd_may_unlink(const struct lu_env *env, struct mdd_object *pobj,
244 const struct lu_attr *pattr, const struct lu_attr *attr);
245 int mdd_may_delete(const struct lu_env *env, struct mdd_object *tpobj,
246 const struct lu_attr *tpattr, struct mdd_object *tobj,
247 const struct lu_attr *tattr, const struct lu_attr *cattr,
248 int check_perm, int check_empty);
249 int mdd_unlink_sanity_check(const struct lu_env *env, struct mdd_object *pobj,
250 const struct lu_attr *pattr,
251 struct mdd_object *cobj,
252 const struct lu_attr *cattr);
253 int mdd_finish_unlink(const struct lu_env *env, struct mdd_object *obj,
254 struct md_attr *ma, const struct mdd_object *pobj,
255 const struct lu_name *lname, struct thandle *th);
257 int mdd_is_root(struct mdd_device *mdd, const struct lu_fid *fid);
258 int mdd_lookup(const struct lu_env *env,
259 struct md_object *pobj, const struct lu_name *lname,
260 struct lu_fid* fid, struct md_op_spec *spec);
261 int mdd_links_write(const struct lu_env *env, struct mdd_object *mdd_obj,
262 struct linkea_data *ldata, struct thandle *handle);
263 struct lu_buf *mdd_links_get(const struct lu_env *env,
264 struct mdd_object *mdd_obj);
265 int mdd_links_rename(const struct lu_env *env,
266 struct mdd_object *mdd_obj,
267 const struct lu_fid *oldpfid,
268 const struct lu_name *oldlname,
269 const struct lu_fid *newpfid,
270 const struct lu_name *newlname,
271 struct thandle *handle,
272 struct linkea_data *ldata,
273 int first, int check);
274 int mdd_dir_layout_shrink(const struct lu_env *env,
275 struct md_object *md_obj,
276 const struct lu_buf *lmu_buf);
278 struct mdd_thread_info *mdd_env_info(const struct lu_env *env);
280 #define MDD_ENV_VAR(env, var) (&mdd_env_info(env)->mti_##var)
282 struct lu_buf *mdd_buf_get(const struct lu_env *env, void *area, ssize_t len);
283 const struct lu_buf *mdd_buf_get_const(const struct lu_env *env,
284 const void *area, ssize_t len);
286 int mdd_orphan_cleanup(const struct lu_env *env, struct mdd_device *d);
287 int mdd_orphan_insert(const struct lu_env *env, struct mdd_object *obj,
288 struct thandle *thandle);
289 int mdd_orphan_delete(const struct lu_env *env, struct mdd_object *obj,
290 struct thandle *thandle);
291 int mdd_orphan_index_init(const struct lu_env *env, struct mdd_device *mdd);
292 void mdd_orphan_index_fini(const struct lu_env *env, struct mdd_device *mdd);
293 int mdd_orphan_declare_insert(const struct lu_env *env, struct mdd_object *obj,
294 umode_t mode, struct thandle *thandle);
295 int mdd_orphan_declare_delete(const struct lu_env *env, struct mdd_object *obj,
296 struct thandle *thandle);
299 int mdd_procfs_init(struct mdd_device *mdd, const char *name);
300 void mdd_procfs_fini(struct mdd_device *mdd);
303 extern struct kmem_cache *mdd_object_kmem;
304 extern const struct md_dir_operations mdd_dir_ops;
305 extern const struct md_object_operations mdd_obj_ops;
306 int mdd_readlink(const struct lu_env *env, struct md_object *obj,
308 int accmode(const struct lu_env *env, const struct lu_attr *la, int flags);
309 extern struct lu_context_key mdd_thread_key;
310 extern const struct lu_device_operations mdd_lu_ops;
312 struct mdd_object *mdd_object_find(const struct lu_env *env,
313 struct mdd_device *d,
314 const struct lu_fid *f);
315 int mdd_readpage(const struct lu_env *env, struct md_object *obj,
316 const struct lu_rdpg *rdpg);
317 int mdd_declare_changelog_store(const struct lu_env *env,
318 struct mdd_device *mdd,
319 enum changelog_rec_type type,
320 const struct lu_name *tname,
321 const struct lu_name *sname,
322 struct thandle *handle);
323 void mdd_changelog_rec_ext_jobid(struct changelog_rec *rec, const char *jobid);
324 void mdd_changelog_rec_ext_extra_flags(struct changelog_rec *rec, __u64 eflags);
325 void mdd_changelog_rec_extra_uidgid(struct changelog_rec *rec,
326 __u64 uid, __u64 gid);
327 void mdd_changelog_rec_extra_nid(struct changelog_rec *rec,
329 void mdd_changelog_rec_extra_omode(struct changelog_rec *rec, int flags);
330 void mdd_changelog_rec_extra_xattr(struct changelog_rec *rec,
331 const char *xattr_name);
332 int mdd_changelog_store(const struct lu_env *env, struct mdd_device *mdd,
333 struct llog_changelog_rec *rec, struct thandle *th);
334 int mdd_changelog_data_store(const struct lu_env *env, struct mdd_device *mdd,
335 enum changelog_rec_type type, int flags,
336 struct mdd_object *mdd_obj,
337 struct thandle *handle);
338 int mdd_changelog_ns_store(const struct lu_env *env, struct mdd_device *mdd,
339 enum changelog_rec_type type,
340 enum changelog_rec_flags crf,
341 struct mdd_object *target,
342 const struct lu_fid *tpfid,
343 const struct lu_fid *sfid,
344 const struct lu_fid *spfid,
345 const struct lu_name *tname,
346 const struct lu_name *sname,
347 struct thandle *handle);
348 int mdd_invalidate(const struct lu_env *env, struct md_object *obj);
349 int mdd_declare_create_object_internal(const struct lu_env *env,
350 struct mdd_object *p,
351 struct mdd_object *c,
352 struct lu_attr *attr,
353 struct thandle *handle,
354 const struct md_op_spec *spec,
355 struct dt_allocation_hint *hint);
356 int mdd_stripe_get(const struct lu_env *env, struct mdd_object *obj,
357 struct lu_buf *lmm_buf, const char *name);
358 int mdd_changelog_data_store_xattr(const struct lu_env *env,
359 struct mdd_device *mdd,
360 enum changelog_rec_type type,
361 int flags, struct mdd_object *mdd_obj,
362 const char *xattr_name,
363 struct thandle *handle);
366 void mdd_object_make_hint(const struct lu_env *env, struct mdd_object *parent,
367 struct mdd_object *child, const struct lu_attr *attr,
368 const struct md_op_spec *spec,
369 struct dt_allocation_hint *hint);
371 static inline void mdd_object_get(struct mdd_object *o)
373 lu_object_get(&o->mod_obj.mo_lu);
376 static inline void mdd_object_put(const struct lu_env *env,
377 struct mdd_object *o)
379 lu_object_put(env, &o->mod_obj.mo_lu);
382 struct thandle *mdd_trans_create(const struct lu_env *env,
383 struct mdd_device *mdd);
384 int mdd_trans_start(const struct lu_env *env, struct mdd_device *mdd,
386 int mdd_trans_stop(const struct lu_env *env, struct mdd_device *mdd,
387 int rc, struct thandle *handle);
390 struct lu_object *mdd_object_alloc(const struct lu_env *env,
391 const struct lu_object_header *hdr,
392 struct lu_device *d);
393 int mdd_local_file_create(const struct lu_env *env, struct mdd_device *mdd,
394 const struct lu_fid *pfid, const char *name,
395 __u32 mode, struct lu_fid *fid);
397 int mdd_acl_chmod(const struct lu_env *env, struct mdd_object *o, __u32 mode,
398 struct thandle *handle);
399 int mdd_acl_set(const struct lu_env *env, struct mdd_object *obj,
400 struct lu_attr *attr, const struct lu_buf *buf, int fl);
401 int __mdd_fix_mode_acl(const struct lu_env *env, struct lu_buf *buf,
403 int __mdd_permission_internal(const struct lu_env *env, struct mdd_object *obj,
404 const struct lu_attr *la, int mask, int role);
405 int mdd_permission(const struct lu_env *env,
406 struct md_object *pobj, struct md_object *cobj,
407 struct md_attr *ma, int mask);
408 int mdd_generic_thread_start(struct mdd_generic_thread *thread,
409 int (*func)(void *), void *data, char *name);
410 void mdd_generic_thread_stop(struct mdd_generic_thread *thread);
411 int mdd_changelog_user_purge(const struct lu_env *env, struct mdd_device *mdd,
415 int mdd_compat_fixes(const struct lu_env *env, struct mdd_device *mdd);
417 /* inline functions */
418 static inline int lu_device_is_mdd(struct lu_device *d)
420 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &mdd_lu_ops);
423 static inline struct mdd_device* lu2mdd_dev(struct lu_device *d)
425 LASSERT(lu_device_is_mdd(d));
426 return container_of0(d, struct mdd_device, mdd_md_dev.md_lu_dev);
429 static inline struct lu_device *mdd2lu_dev(struct mdd_device *d)
431 return (&d->mdd_md_dev.md_lu_dev);
434 static inline struct mdd_object *lu2mdd_obj(struct lu_object *o)
436 LASSERT(ergo(o != NULL, lu_device_is_mdd(o->lo_dev)));
437 return container_of0(o, struct mdd_object, mod_obj.mo_lu);
440 static inline struct mdd_device* mdo2mdd(struct md_object *mdo)
442 return lu2mdd_dev(mdo->mo_lu.lo_dev);
445 static inline struct mdd_object* md2mdd_obj(struct md_object *mdo)
447 return container_of0(mdo, struct mdd_object, mod_obj);
450 static inline const struct dt_device_operations *
451 mdd_child_ops(struct mdd_device *d)
453 return d->mdd_child->dd_ops;
456 static inline struct lu_object *mdd2lu_obj(struct mdd_object *obj)
458 return &obj->mod_obj.mo_lu;
461 static inline struct dt_object* mdd_object_child(struct mdd_object *o)
463 return container_of0(lu_object_next(mdd2lu_obj(o)),
464 struct dt_object, do_lu);
467 static inline struct obd_device *mdd2obd_dev(struct mdd_device *mdd)
469 return (mdd->mdd_md_dev.md_lu_dev.ld_obd);
472 static inline struct mdd_device *mdd_obj2mdd_dev(struct mdd_object *obj)
474 return mdo2mdd(&obj->mod_obj);
477 static inline const struct lu_fid *mdo2fid(const struct mdd_object *obj)
479 return lu_object_fid(&obj->mod_obj.mo_lu);
482 static inline umode_t mdd_object_type(const struct mdd_object *obj)
484 return lu_object_attr(&obj->mod_obj.mo_lu);
487 static inline int mdd_is_dead_obj(struct mdd_object *obj)
489 return obj && obj->mod_flags & DEAD_OBJ;
492 static inline bool mdd_is_volatile_obj(struct mdd_object *obj)
494 return obj->mod_flags & VOLATILE_OBJ;
497 static inline int mdd_object_exists(struct mdd_object *obj)
499 return lu_object_exists(mdd2lu_obj(obj));
502 static inline int mdd_object_remote(struct mdd_object *obj)
504 return lu_object_remote(mdd2lu_obj(obj));
507 static inline const struct lu_fid *mdd_object_fid(struct mdd_object *obj)
509 return lu_object_fid(mdd2lu_obj(obj));
512 static inline struct seq_server_site *mdd_seq_site(struct mdd_device *mdd)
514 return mdd2lu_dev(mdd)->ld_site->ld_seq_site;
517 static inline const char *mdd_obj_dev_name(const struct mdd_object *obj)
519 return lu_dev_name(obj->mod_obj.mo_lu.lo_dev);
522 #define MAX_ATIME_DIFF 60
524 static inline int mdd_permission_internal(const struct lu_env *env,
525 struct mdd_object *obj,
526 const struct lu_attr *la, int mask)
528 return __mdd_permission_internal(env, obj, la, mask, -1);
531 static inline int mdd_permission_internal_locked(const struct lu_env *env,
532 struct mdd_object *obj,
533 const struct lu_attr *la,
535 enum mdd_object_role role)
537 return __mdd_permission_internal(env, obj, la, mask, role);
540 /* mdd inline func for calling osd_dt_object ops */
541 static inline int mdo_attr_get(const struct lu_env *env, struct mdd_object *obj,
544 struct dt_object *next = mdd_object_child(obj);
545 return dt_attr_get(env, next, la);
548 static inline int mdo_declare_attr_set(const struct lu_env *env,
549 struct mdd_object *obj,
550 const struct lu_attr *la,
551 struct thandle *handle)
553 struct dt_object *next = mdd_object_child(obj);
554 return dt_declare_attr_set(env, next, la, handle);
557 static inline int mdo_attr_set(const struct lu_env *env,
558 struct mdd_object *obj,
559 const struct lu_attr *la,
560 struct thandle *handle)
562 struct dt_object *next = mdd_object_child(obj);
564 if (!mdd_object_exists(obj))
567 return dt_attr_set(env, next, la, handle);
570 static inline int mdo_xattr_get(const struct lu_env *env,struct mdd_object *obj,
571 struct lu_buf *buf, const char *name)
573 struct dt_object *next = mdd_object_child(obj);
574 return dt_xattr_get(env, next, buf, name);
577 static inline int mdo_declare_xattr_set(const struct lu_env *env,
578 struct mdd_object *obj,
579 const struct lu_buf *buf,
581 int fl, struct thandle *handle)
583 struct dt_object *next = mdd_object_child(obj);
584 return dt_declare_xattr_set(env, next, buf, name, fl, handle);
587 static inline int mdo_xattr_set(const struct lu_env *env,struct mdd_object *obj,
588 const struct lu_buf *buf, const char *name,
589 int fl, struct thandle *handle)
591 struct dt_object *next = mdd_object_child(obj);
593 if (!mdd_object_exists(obj))
596 return dt_xattr_set(env, next, buf, name, fl, handle);
599 static inline int mdo_declare_xattr_del(const struct lu_env *env,
600 struct mdd_object *obj,
602 struct thandle *handle)
604 struct dt_object *next = mdd_object_child(obj);
605 return dt_declare_xattr_del(env, next, name, handle);
608 static inline int mdo_xattr_del(const struct lu_env *env,struct mdd_object *obj,
609 const char *name, struct thandle *handle)
611 struct dt_object *next = mdd_object_child(obj);
613 if (!mdd_object_exists(obj))
616 return dt_xattr_del(env, next, name, handle);
620 mdo_xattr_list(const struct lu_env *env, struct mdd_object *obj,
623 struct dt_object *next = mdd_object_child(obj);
625 if (!mdd_object_exists(obj))
628 return dt_xattr_list(env, next, buf);
632 mdo_invalidate(const struct lu_env *env, struct mdd_object *obj)
634 return dt_invalidate(env, mdd_object_child(obj));
638 mdo_declare_layout_change(const struct lu_env *env, struct mdd_object *obj,
639 struct md_layout_change *mlc, struct thandle *handle)
641 return dt_declare_layout_change(env, mdd_object_child(obj),
646 mdo_layout_change(const struct lu_env *env, struct mdd_object *obj,
647 struct md_layout_change *mlc, struct thandle *handle)
649 return dt_layout_change(env, mdd_object_child(obj), mlc, handle);
653 int mdo_declare_index_insert(const struct lu_env *env, struct mdd_object *obj,
654 const struct lu_fid *fid, __u32 type,
655 const char *name, struct thandle *handle)
657 struct dt_object *next = mdd_object_child(obj);
661 * if the object doesn't exist yet, then it's supposed to be created
662 * and declaration of the creation should be enough to insert ./..
666 if (dt_try_as_dir(env, next)) {
667 struct dt_insert_rec *rec = &mdd_env_info(env)->mti_dt_rec;
670 rec->rec_type = type;
671 rc = dt_declare_insert(env, next, (const struct dt_rec *)rec,
672 (const struct dt_key *)name, handle);
679 int mdo_declare_index_delete(const struct lu_env *env, struct mdd_object *obj,
680 const char *name, struct thandle *handle)
682 struct dt_object *next = mdd_object_child(obj);
684 if (!dt_try_as_dir(env, next))
687 return dt_declare_delete(env, next, (const struct dt_key *)name,
691 static inline int mdo_declare_ref_add(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_add(env, next, handle);
699 static inline int mdo_ref_add(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_add(env, next, handle);
710 static inline int mdo_declare_ref_del(const struct lu_env *env,
711 struct mdd_object *obj,
712 struct thandle *handle)
714 struct dt_object *next = mdd_object_child(obj);
715 return dt_declare_ref_del(env, next, handle);
718 static inline int mdo_ref_del(const struct lu_env *env, struct mdd_object *obj,
719 struct thandle *handle)
721 struct dt_object *next = mdd_object_child(obj);
723 if (!mdd_object_exists(obj))
726 return dt_ref_del(env, next, handle);
730 mdo_declare_create_object(const struct lu_env *env, struct mdd_object *obj,
731 struct lu_attr *attr, struct dt_allocation_hint *hint,
732 struct dt_object_format *dof, struct thandle *handle)
734 struct dt_object *next = mdd_object_child(obj);
735 return dt_declare_create(env, next, attr, hint, dof, handle);
739 mdo_create_object(const struct lu_env *env, struct mdd_object *obj,
740 struct lu_attr *attr, struct dt_allocation_hint *hint,
741 struct dt_object_format *dof, struct thandle *handle)
743 struct dt_object *next = mdd_object_child(obj);
744 return dt_create(env, next, attr, hint, dof, handle);
748 int mdo_declare_destroy(const struct lu_env *env, struct mdd_object *o,
749 struct thandle *handle)
751 struct dt_object *next = mdd_object_child(o);
752 return dt_declare_destroy(env, next, handle);
756 int mdo_destroy(const struct lu_env *env, struct mdd_object *o,
757 struct thandle *handle)
759 struct dt_object *next = mdd_object_child(o);
760 return dt_destroy(env, next, handle);
763 static inline bool mdd_changelog_enabled(const struct lu_env *env,
764 struct mdd_device *mdd,
765 enum changelog_rec_type type)
767 const struct lu_ucred *uc;
769 if ((mdd->mdd_cl.mc_flags & CLM_ON) &&
770 (mdd->mdd_cl.mc_mask & (1 << type))) {
771 uc = lu_ucred_check(env);
773 return uc != NULL ? uc->uc_enable_audit : true;