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 mdd_changelog mdd_cl;
143 unsigned int mdd_changelog_gc;
144 time64_t mdd_changelog_max_idle_time;
145 unsigned long mdd_changelog_max_idle_indexes;
146 time64_t mdd_changelog_min_gc_interval;
147 unsigned int mdd_changelog_min_free_cat_entries;
148 time64_t mdd_atime_diff;
149 struct mdd_object *mdd_dot_lustre;
150 struct mdd_dot_lustre_objs mdd_dot_lustre_objs;
151 unsigned int mdd_sync_permission;
153 int mdd_append_stripe_count;
154 char mdd_append_pool[LOV_MAXPOOLNAME + 1];
155 struct local_oid_storage *mdd_los;
156 struct mdd_generic_thread mdd_orphan_cleanup_thread;
157 struct kobject mdd_kobj;
158 struct kobj_type mdd_ktype;
159 struct completion mdd_kobj_unregister;
163 /* The dir object has been unlinked */
166 VOLATILE_OBJ = 1 << 4,
170 struct md_object mod_obj;
175 unsigned long mod_flags;
176 struct list_head mod_users; /**< unique user opens */
179 struct mdd_thread_info {
180 struct lu_fid mti_fid;
181 struct lu_fid mti_fid2; /* used for be & cpu converting */
183 * only be used by MDD interfaces, can be passed into local MDD APIs.
185 struct lu_attr mti_pattr;
186 struct lu_attr mti_cattr;
187 struct lu_attr mti_tpattr;
188 struct lu_attr mti_tattr;
189 /** used to set c/mtime */
190 struct lu_attr mti_la_for_fix;
191 /* Only used in mdd_object_start */
192 struct lu_attr mti_la_for_start;
193 /* mti_ent and mti_key must be conjoint,
194 * then mti_ent::lde_name will be mti_key. */
195 struct lu_dirent mti_ent;
196 char mti_key[NAME_MAX + 16];
197 char mti_name[NAME_MAX + 1];
198 struct lu_buf mti_buf[4];
199 struct lu_buf mti_big_buf; /* biggish persistent buf */
200 struct lu_buf mti_link_buf; /* buf for link ea */
201 struct lu_buf mti_xattr_buf;
203 struct lmv_user_md mti_lmu;
204 struct dt_allocation_hint mti_hint;
205 struct dt_object_format mti_dof;
206 struct linkea_data mti_link_data;
207 struct md_op_spec mti_spec;
208 struct dt_insert_rec mti_dt_rec;
209 struct lfsck_req_local mti_lrl;
210 struct lu_seq_range mti_range;
211 union lmv_mds_md mti_lmv;
212 struct md_layout_change mti_mlc;
215 int mdd_la_get(const struct lu_env *env, struct mdd_object *obj,
217 int mdd_attr_get(const struct lu_env *env, struct md_object *obj,
219 int mdd_attr_set(const struct lu_env *env, struct md_object *obj,
220 const struct md_attr *ma);
221 int mdd_attr_set_internal(const struct lu_env *env,
222 struct mdd_object *obj,
223 const struct lu_attr *attr,
224 struct thandle *handle,
226 int mdd_update_time(const struct lu_env *env, struct mdd_object *obj,
227 const struct lu_attr *oattr, struct lu_attr *attr,
228 struct thandle *handle);
229 int mdd_create_object_internal(const struct lu_env *env, struct mdd_object *p,
230 struct mdd_object *c, struct lu_attr *attr,
231 struct thandle *handle,
232 const struct md_op_spec *spec,
233 struct dt_allocation_hint *hint);
236 void mdd_write_lock(const struct lu_env *env, struct mdd_object *obj,
237 enum dt_object_role role);
238 void mdd_read_lock(const struct lu_env *env, struct mdd_object *obj,
239 enum dt_object_role role);
240 void mdd_write_unlock(const struct lu_env *env, struct mdd_object *obj);
241 void mdd_read_unlock(const struct lu_env *env, struct mdd_object *obj);
242 int mdd_write_locked(const struct lu_env *env, struct mdd_object *obj);
245 int mdd_may_create(const struct lu_env *env, struct mdd_object *pobj,
246 const struct lu_attr *pattr, struct mdd_object *cobj,
248 int mdd_may_unlink(const struct lu_env *env, struct mdd_object *pobj,
249 const struct lu_attr *pattr, const struct lu_attr *attr);
250 int mdd_may_delete(const struct lu_env *env, struct mdd_object *tpobj,
251 const struct lu_attr *tpattr, struct mdd_object *tobj,
252 const struct lu_attr *tattr, const struct lu_attr *cattr,
253 int check_perm, int check_empty);
254 int mdd_unlink_sanity_check(const struct lu_env *env, struct mdd_object *pobj,
255 const struct lu_attr *pattr,
256 struct mdd_object *cobj,
257 const struct lu_attr *cattr);
258 int mdd_finish_unlink(const struct lu_env *env, struct mdd_object *obj,
259 struct md_attr *ma, struct mdd_object *pobj,
260 const struct lu_name *lname, struct thandle *th);
262 int mdd_is_root(struct mdd_device *mdd, const struct lu_fid *fid);
263 int mdd_lookup(const struct lu_env *env,
264 struct md_object *pobj, const struct lu_name *lname,
265 struct lu_fid* fid, struct md_op_spec *spec);
266 int mdd_links_write(const struct lu_env *env, struct mdd_object *mdd_obj,
267 struct linkea_data *ldata, struct thandle *handle);
268 struct lu_buf *mdd_links_get(const struct lu_env *env,
269 struct mdd_object *mdd_obj);
270 int mdd_links_rename(const struct lu_env *env,
271 struct mdd_object *mdd_obj,
272 const struct lu_fid *oldpfid,
273 const struct lu_name *oldlname,
274 const struct lu_fid *newpfid,
275 const struct lu_name *newlname,
276 struct thandle *handle,
277 struct linkea_data *ldata,
278 int first, int check);
279 int mdd_dir_layout_shrink(const struct lu_env *env,
280 struct md_object *md_obj,
281 struct md_layout_change *mlc);
283 int mdd_changelog_write_rec(const struct lu_env *env,
284 struct llog_handle *loghandle,
285 struct llog_rec_hdr *rec,
286 struct llog_cookie *cookie,
287 int idx, struct thandle *th);
289 struct mdd_thread_info *mdd_env_info(const struct lu_env *env);
291 #define MDD_ENV_VAR(env, var) (&mdd_env_info(env)->mti_##var)
293 struct lu_buf *mdd_buf_get(const struct lu_env *env, void *area, ssize_t len);
294 const struct lu_buf *mdd_buf_get_const(const struct lu_env *env,
295 const void *area, ssize_t len);
297 int mdd_orphan_cleanup(const struct lu_env *env, struct mdd_device *d);
298 int mdd_orphan_insert(const struct lu_env *env, struct mdd_object *obj,
299 struct thandle *thandle);
300 int mdd_orphan_delete(const struct lu_env *env, struct mdd_object *obj,
301 struct thandle *thandle);
302 int mdd_orphan_index_init(const struct lu_env *env, struct mdd_device *mdd);
303 void mdd_orphan_index_fini(const struct lu_env *env, struct mdd_device *mdd);
304 int mdd_orphan_declare_insert(const struct lu_env *env, struct mdd_object *obj,
305 umode_t mode, struct thandle *thandle);
306 int mdd_orphan_declare_delete(const struct lu_env *env, struct mdd_object *obj,
307 struct thandle *thandle);
310 int mdd_procfs_init(struct mdd_device *mdd, const char *name);
311 void mdd_procfs_fini(struct mdd_device *mdd);
314 extern struct kmem_cache *mdd_object_kmem;
315 extern const struct md_dir_operations mdd_dir_ops;
316 extern const struct md_object_operations mdd_obj_ops;
317 int mdd_readlink(const struct lu_env *env, struct md_object *obj,
319 extern struct lu_context_key mdd_thread_key;
320 extern const struct lu_device_operations mdd_lu_ops;
322 struct mdd_object *mdd_object_find(const struct lu_env *env,
323 struct mdd_device *d,
324 const struct lu_fid *f);
325 int mdd_readpage(const struct lu_env *env, struct md_object *obj,
326 const struct lu_rdpg *rdpg);
327 int mdd_declare_changelog_store(const struct lu_env *env,
328 struct mdd_device *mdd,
329 enum changelog_rec_type type,
330 const struct lu_name *tname,
331 const struct lu_name *sname,
332 struct thandle *handle);
333 void mdd_changelog_rec_ext_jobid(struct changelog_rec *rec, const char *jobid);
334 void mdd_changelog_rec_ext_extra_flags(struct changelog_rec *rec, __u64 eflags);
335 void mdd_changelog_rec_extra_uidgid(struct changelog_rec *rec,
336 __u64 uid, __u64 gid);
337 void mdd_changelog_rec_extra_nid(struct changelog_rec *rec,
339 void mdd_changelog_rec_extra_omode(struct changelog_rec *rec, u32 flags);
340 void mdd_changelog_rec_extra_xattr(struct changelog_rec *rec,
341 const char *xattr_name);
342 int mdd_changelog_store(const struct lu_env *env, struct mdd_device *mdd,
343 struct llog_changelog_rec *rec, struct thandle *th);
344 int mdd_changelog_data_store(const struct lu_env *env, struct mdd_device *mdd,
345 enum changelog_rec_type type,
346 enum changelog_rec_flags clf_flags,
347 struct mdd_object *mdd_obj,
348 struct thandle *handle);
349 int mdd_changelog_ns_store(const struct lu_env *env, struct mdd_device *mdd,
350 enum changelog_rec_type type,
351 enum changelog_rec_flags clf_flags,
352 struct mdd_object *target,
353 const struct lu_fid *tpfid,
354 const struct lu_fid *sfid,
355 const struct lu_fid *spfid,
356 const struct lu_name *tname,
357 const struct lu_name *sname,
358 struct thandle *handle);
359 int mdd_invalidate(const struct lu_env *env, struct md_object *obj);
360 int mdd_declare_create_object_internal(const struct lu_env *env,
361 struct mdd_object *p,
362 struct mdd_object *c,
363 struct lu_attr *attr,
364 struct thandle *handle,
365 const struct md_op_spec *spec,
366 struct dt_allocation_hint *hint);
367 int mdd_stripe_get(const struct lu_env *env, struct mdd_object *obj,
368 struct lu_buf *lmm_buf, const char *name);
369 int mdd_changelog_data_store_xattr(const struct lu_env *env,
370 struct mdd_device *mdd,
371 enum changelog_rec_type type,
372 enum changelog_rec_flags clf_flags,
373 struct mdd_object *mdd_obj,
374 const char *xattr_name,
375 struct thandle *handle);
378 void mdd_object_make_hint(const struct lu_env *env, struct mdd_object *parent,
379 struct mdd_object *child, const struct lu_attr *attr,
380 const struct md_op_spec *spec,
381 struct dt_allocation_hint *hint);
383 static inline void mdd_object_get(struct mdd_object *o)
385 lu_object_get(&o->mod_obj.mo_lu);
388 static inline void mdd_object_put(const struct lu_env *env,
389 struct mdd_object *o)
391 lu_object_put(env, &o->mod_obj.mo_lu);
394 struct thandle *mdd_trans_create(const struct lu_env *env,
395 struct mdd_device *mdd);
396 int mdd_trans_start(const struct lu_env *env, struct mdd_device *mdd,
398 int mdd_trans_stop(const struct lu_env *env, struct mdd_device *mdd,
399 int rc, struct thandle *handle);
402 struct lu_object *mdd_object_alloc(const struct lu_env *env,
403 const struct lu_object_header *hdr,
404 struct lu_device *d);
405 int mdd_local_file_create(const struct lu_env *env, struct mdd_device *mdd,
406 const struct lu_fid *pfid, const char *name,
407 __u32 mode, struct lu_fid *fid);
409 int mdd_acl_chmod(const struct lu_env *env, struct mdd_object *o, __u32 mode,
410 struct thandle *handle);
411 int mdd_acl_set(const struct lu_env *env, struct mdd_object *obj,
412 struct lu_attr *attr, const struct lu_buf *buf, int fl);
413 int __mdd_fix_mode_acl(const struct lu_env *env, struct lu_buf *buf,
415 int __mdd_permission_internal(const struct lu_env *env, struct mdd_object *obj,
416 const struct lu_attr *la, int mask, int role);
417 int mdd_permission(const struct lu_env *env, struct md_object *pobj,
418 struct md_object *cobj, struct md_attr *ma, int mask);
419 int mdd_generic_thread_start(struct mdd_generic_thread *thread,
420 int (*func)(void *), void *data, char *name);
421 void mdd_generic_thread_stop(struct mdd_generic_thread *thread);
422 int mdd_changelog_user_purge(const struct lu_env *env, struct mdd_device *mdd,
426 int mdd_compat_fixes(const struct lu_env *env, struct mdd_device *mdd);
428 /* inline functions */
429 static inline int lu_device_is_mdd(struct lu_device *d)
431 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &mdd_lu_ops);
434 static inline struct mdd_device *lu2mdd_dev(struct lu_device *d)
436 LASSERT(lu_device_is_mdd(d));
437 return container_of0(d, struct mdd_device, mdd_md_dev.md_lu_dev);
440 static inline struct lu_device *mdd2lu_dev(struct mdd_device *mdd)
442 return &mdd->mdd_md_dev.md_lu_dev;
445 static inline struct mdd_object *lu2mdd_obj(struct lu_object *o)
447 LASSERT(ergo(o != NULL, lu_device_is_mdd(o->lo_dev)));
448 return container_of0(o, struct mdd_object, mod_obj.mo_lu);
451 static inline struct mdd_device *mdo2mdd(struct md_object *mdo)
453 return lu2mdd_dev(mdo->mo_lu.lo_dev);
456 static inline struct mdd_object *md2mdd_obj(struct md_object *mdo)
458 return container_of0(mdo, struct mdd_object, mod_obj);
462 struct dt_device_operations *mdd_child_ops(struct mdd_device *mdd)
464 return mdd->mdd_child->dd_ops;
467 static inline struct lu_object *mdd2lu_obj(struct mdd_object *obj)
469 return &obj->mod_obj.mo_lu;
472 static inline struct dt_object *mdd_object_child(struct mdd_object *obj)
474 return container_of0(lu_object_next(mdd2lu_obj(obj)),
475 struct dt_object, do_lu);
478 static inline struct obd_device *mdd2obd_dev(struct mdd_device *mdd)
480 return (mdd->mdd_md_dev.md_lu_dev.ld_obd);
483 static inline struct mdd_device *mdd_obj2mdd_dev(struct mdd_object *obj)
485 return mdo2mdd(&obj->mod_obj);
488 static inline umode_t mdd_object_type(const struct mdd_object *mdd_obj)
490 return lu_object_attr(&mdd_obj->mod_obj.mo_lu);
493 static inline int mdd_is_dead_obj(struct mdd_object *mdd_obj)
495 return mdd_obj && mdd_obj->mod_flags & DEAD_OBJ;
498 static inline bool mdd_is_volatile_obj(struct mdd_object *mdd_obj)
500 return mdd_obj->mod_flags & VOLATILE_OBJ;
503 static inline bool mdd_is_orphan_obj(struct mdd_object *mdd_obj)
505 return mdd_obj->mod_flags & ORPHAN_OBJ;
508 static inline int mdd_object_exists(struct mdd_object *mdd_obj)
510 return lu_object_exists(mdd2lu_obj(mdd_obj));
513 static inline int mdd_object_remote(struct mdd_object *mdd_obj)
515 return lu_object_remote(mdd2lu_obj(mdd_obj));
518 static inline const struct lu_fid *mdd_object_fid(struct mdd_object *mdd_obj)
520 return lu_object_fid(mdd2lu_obj(mdd_obj));
523 static inline struct seq_server_site *mdd_seq_site(struct mdd_device *mdd)
525 return mdd2lu_dev(mdd)->ld_site->ld_seq_site;
528 static inline const char *mdd_obj_dev_name(const struct mdd_object *mdd_obj)
530 return lu_dev_name(mdd_obj->mod_obj.mo_lu.lo_dev);
533 #define MAX_ATIME_DIFF 60
535 static inline int mdd_permission_internal(const struct lu_env *env,
536 struct mdd_object *obj,
537 const struct lu_attr *la, int mask)
539 return __mdd_permission_internal(env, obj, la, mask, -1);
542 static inline int mdd_permission_internal_locked(const struct lu_env *env,
543 struct mdd_object *obj,
544 const struct lu_attr *la,
546 enum dt_object_role role)
548 return __mdd_permission_internal(env, obj, la, mask, role);
551 /* mdd inline func for calling osd_dt_object ops */
552 static inline int mdo_attr_get(const struct lu_env *env, struct mdd_object *obj,
555 struct dt_object *next = mdd_object_child(obj);
556 return dt_attr_get(env, next, la);
559 static inline int mdo_declare_attr_set(const struct lu_env *env,
560 struct mdd_object *obj,
561 const struct lu_attr *la,
562 struct thandle *handle)
564 struct dt_object *next = mdd_object_child(obj);
565 return dt_declare_attr_set(env, next, la, handle);
568 static inline int mdo_attr_set(const struct lu_env *env,
569 struct mdd_object *obj,
570 const struct lu_attr *la,
571 struct thandle *handle)
573 struct dt_object *next = mdd_object_child(obj);
575 if (!mdd_object_exists(obj))
578 return dt_attr_set(env, next, la, handle);
581 static inline int mdo_xattr_get(const struct lu_env *env,struct mdd_object *obj,
582 struct lu_buf *buf, const char *name)
584 struct dt_object *next = mdd_object_child(obj);
585 return dt_xattr_get(env, next, buf, name);
588 static inline int mdo_declare_xattr_set(const struct lu_env *env,
589 struct mdd_object *obj,
590 const struct lu_buf *buf,
592 int fl, struct thandle *handle)
594 struct dt_object *next = mdd_object_child(obj);
595 return dt_declare_xattr_set(env, next, buf, name, fl, handle);
598 static inline int mdo_xattr_set(const struct lu_env *env,struct mdd_object *obj,
599 const struct lu_buf *buf, const char *name,
600 int fl, struct thandle *handle)
602 struct dt_object *next = mdd_object_child(obj);
604 if (!mdd_object_exists(obj))
607 return dt_xattr_set(env, next, buf, name, fl, handle);
610 static inline int mdo_declare_xattr_del(const struct lu_env *env,
611 struct mdd_object *obj,
613 struct thandle *handle)
615 struct dt_object *next = mdd_object_child(obj);
616 return dt_declare_xattr_del(env, next, name, handle);
619 static inline int mdo_xattr_del(const struct lu_env *env,struct mdd_object *obj,
620 const char *name, struct thandle *handle)
622 struct dt_object *next = mdd_object_child(obj);
624 if (!mdd_object_exists(obj))
627 return dt_xattr_del(env, next, name, handle);
631 mdo_xattr_list(const struct lu_env *env, struct mdd_object *obj,
634 struct dt_object *next = mdd_object_child(obj);
636 if (!mdd_object_exists(obj))
639 return dt_xattr_list(env, next, buf);
643 mdo_invalidate(const struct lu_env *env, struct mdd_object *obj)
645 return dt_invalidate(env, mdd_object_child(obj));
649 mdo_declare_layout_change(const struct lu_env *env, struct mdd_object *obj,
650 struct md_layout_change *mlc, struct thandle *handle)
652 return dt_declare_layout_change(env, mdd_object_child(obj),
657 mdo_layout_change(const struct lu_env *env, struct mdd_object *obj,
658 struct md_layout_change *mlc, struct thandle *handle)
660 return dt_layout_change(env, mdd_object_child(obj), mlc, handle);
664 int mdo_declare_index_insert(const struct lu_env *env, struct mdd_object *obj,
665 const struct lu_fid *fid, __u32 type,
666 const char *name, struct thandle *handle)
668 struct dt_object *next = mdd_object_child(obj);
672 * if the object doesn't exist yet, then it's supposed to be created
673 * and declaration of the creation should be enough to insert ./..
677 if (dt_try_as_dir(env, next)) {
678 struct dt_insert_rec *rec = &mdd_env_info(env)->mti_dt_rec;
681 rec->rec_type = type;
682 rc = dt_declare_insert(env, next, (const struct dt_rec *)rec,
683 (const struct dt_key *)name, handle);
690 int mdo_declare_index_delete(const struct lu_env *env, struct mdd_object *obj,
691 const char *name, struct thandle *handle)
693 struct dt_object *next = mdd_object_child(obj);
695 if (!dt_try_as_dir(env, next))
698 return dt_declare_delete(env, next, (const struct dt_key *)name,
702 static inline int mdo_declare_ref_add(const struct lu_env *env,
703 struct mdd_object *obj,
704 struct thandle *handle)
706 struct dt_object *next = mdd_object_child(obj);
707 return dt_declare_ref_add(env, next, handle);
710 static inline int mdo_ref_add(const struct lu_env *env, struct mdd_object *obj,
711 struct thandle *handle)
713 struct dt_object *next = mdd_object_child(obj);
715 if (!mdd_object_exists(obj))
718 return dt_ref_add(env, next, handle);
721 static inline int mdo_declare_ref_del(const struct lu_env *env,
722 struct mdd_object *obj,
723 struct thandle *handle)
725 struct dt_object *next = mdd_object_child(obj);
726 return dt_declare_ref_del(env, next, handle);
729 static inline int mdo_ref_del(const struct lu_env *env, struct mdd_object *obj,
730 struct thandle *handle)
732 struct dt_object *next = mdd_object_child(obj);
734 if (!mdd_object_exists(obj))
737 return dt_ref_del(env, next, handle);
741 mdo_declare_create_object(const struct lu_env *env, struct mdd_object *obj,
742 struct lu_attr *attr, struct dt_allocation_hint *hint,
743 struct dt_object_format *dof, struct thandle *handle)
745 struct dt_object *next = mdd_object_child(obj);
746 return dt_declare_create(env, next, attr, hint, dof, handle);
750 mdo_create_object(const struct lu_env *env, struct mdd_object *obj,
751 struct lu_attr *attr, struct dt_allocation_hint *hint,
752 struct dt_object_format *dof, struct thandle *handle)
754 struct dt_object *next = mdd_object_child(obj);
755 return dt_create(env, next, attr, hint, dof, handle);
759 int mdo_declare_destroy(const struct lu_env *env, struct mdd_object *o,
760 struct thandle *handle)
762 struct dt_object *next = mdd_object_child(o);
763 return dt_declare_destroy(env, next, handle);
767 int mdo_destroy(const struct lu_env *env, struct mdd_object *o,
768 struct thandle *handle)
770 struct dt_object *next = mdd_object_child(o);
771 return dt_destroy(env, next, handle);
774 static inline bool mdd_changelog_enabled(const struct lu_env *env,
775 struct mdd_device *mdd,
776 enum changelog_rec_type type)
778 const struct lu_ucred *uc;
780 if ((mdd->mdd_cl.mc_flags & CLM_ON) &&
781 (mdd->mdd_cl.mc_mask & (1 << type))) {
782 uc = lu_ucred_check(env);
784 return uc != NULL ? uc->uc_enable_audit : true;