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,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License version 2 for more details. A copy is
14 * included in the COPYING file that accompanied this code.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved
24 * Use is subject to license terms.
26 * Copyright (c) 2012, 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/lod/lod_internal.h
34 * Author: Alex Zhuravlev <alexey.zhuravlev@intel.com>
35 * Author: Mikhail Pershin <mike.pershin@intel.com>
38 #ifndef _LOD_INTERNAL_H
39 #define _LOD_INTERNAL_H
41 #include <libcfs/libcfs.h>
42 #include <uapi/linux/lustre/lustre_cfg.h>
44 #include <dt_object.h>
46 #define LOV_USES_ASSIGNED_STRIPE 0
47 #define LOV_USES_DEFAULT_STRIPE 1
49 /* Special values to remove LOV EA from disk */
50 #define LOVEA_DELETE_VALUES(size, count, offset, pool) \
51 ((size) == 0 && (count) == 0 && \
52 (offset) == (typeof(offset))(-1) && (pool) == NULL)
54 #define LMVEA_DELETE_VALUES(count, offset) \
55 ((count) == 0 && (offset) == (typeof(offset))(-1))
58 char pool_name[LOV_MAXPOOLNAME + 1];
59 struct lu_tgt_pool pool_obds; /* pool members */
60 atomic_t pool_refcount;
61 struct lu_qos_rr pool_rr;
62 struct hlist_node pool_hash; /* access by poolname */
63 struct list_head pool_list;
64 struct proc_dir_entry *pool_proc_entry;
65 struct obd_device *pool_lobd; /* owner */
68 #define pool_tgt_count(p) ((p)->pool_obds.op_count)
69 #define pool_tgt_array(p) ((p)->pool_obds.op_array)
70 #define pool_tgt_rw_sem(p) ((p)->pool_obds.op_rw_sem)
72 #define lod_tgt_desc lu_tgt_desc
73 #define lod_tgt_descs lu_tgt_descs
75 #define OST_TGT(lod, index) LTD_TGT(&lod->lod_ost_descs, index)
76 #define MDT_TGT(lod, index) LTD_TGT(&lod->lod_mdt_descs, index)
78 struct lod_avoid_guide {
79 /* ids of OSSs avoid guidance */
80 __u32 *lag_oss_avoid_array;
81 /* number of filled array items */
82 unsigned int lag_oaa_count;
83 /* number of allocated array items */
84 unsigned int lag_oaa_size;
85 /* bitmap of OSTs avoid guidance */
86 struct cfs_bitmap *lag_ost_avoid_bitmap;
87 /* how many OSTs are available for alloc */
92 struct dt_device lod_dt_dev;
93 struct obd_export *lod_child_exp;
94 struct dt_device *lod_child;
95 struct lprocfs_stats *lod_stats;
96 spinlock_t lod_connects_lock;
98 unsigned int lod_recovery_completed:1,
101 lod_child_got_update_log:1;
103 /* protect ld_active_tgt_count, ltd_active and lod_md_root */
106 /* Description of OST */
107 struct lod_tgt_descs lod_ost_descs;
108 /* Description of MDT */
109 struct lod_tgt_descs lod_mdt_descs;
111 /* Recovery thread for lod_child */
112 struct ptlrpc_thread lod_child_recovery_thread;
114 /* maximum EA size underlied OSD may have */
115 unsigned int lod_osd_max_easize;
116 /* maximum size of MDT stripe for Data-on-MDT files. */
117 unsigned int lod_dom_max_stripesize;
121 struct cfs_hash *lod_pools_hash_body; /* used for key access */
122 struct list_head lod_pool_list; /* used for sequential access */
123 struct proc_dir_entry *lod_pool_proc_entry;
125 enum lustre_sec_part lod_sp_me;
127 struct proc_dir_entry *lod_symlink;
128 struct dentry *lod_debugfs;
130 /* ROOT object, used to fetch FS default striping */
131 struct lod_object *lod_md_root;
134 #define lod_ost_bitmap lod_ost_descs.ltd_tgt_bitmap
135 #define lod_ost_count lod_ost_descs.ltd_lov_desc.ld_tgt_count
136 #define lod_remote_mdt_count lod_mdt_descs.ltd_lmv_desc.ld_tgt_count
138 struct lod_layout_component {
139 struct lu_extent llc_extent;
142 __u32 llc_stripe_size;
144 __u16 llc_layout_gen;
145 __u16 llc_stripe_offset;
146 __u16 llc_stripe_count;
147 __u16 llc_stripes_allocated;
148 __u64 llc_timestamp; /* snapshot time */
150 /* ost list specified with LOV_USER_MAGIC_SPECIFIC lum */
151 struct lu_tgt_pool llc_ostlist;
152 struct dt_object **llc_stripe;
153 __u32 *llc_ost_indices;
156 struct lod_default_striping {
158 /* current layout component count */
159 __u16 lds_def_comp_cnt;
160 __u16 lds_def_mirror_cnt;
161 /* the largest comp count ever used */
162 __u32 lds_def_comp_size_cnt;
163 struct lod_layout_component *lds_def_comp_entries;
165 __u32 lds_dir_def_stripe_count;
166 __u32 lds_dir_def_stripe_offset;
167 __u32 lds_dir_def_hash_type;
168 /* default file striping flags (LOV) */
169 __u32 lds_def_striping_set:1,
170 lds_def_striping_is_composite:1,
171 /* default dir striping flags (LMV) */
172 lds_dir_def_striping_set:1;
175 struct lod_mirror_entry {
180 /* start,end index of this mirror in ldo_comp_entries */
186 /* common fields for both files and directories */
187 struct dt_object ldo_obj;
188 struct mutex ldo_layout_mutex;
190 /* file stripe (LOV) */
192 __u32 ldo_layout_gen;
193 /* Layout component count for a regular file.
194 * It equals to 1 for non-composite layout. */
196 /* Layout mirror count for a PFLR file.
197 * It's 0 for files with non-composite layout. */
198 __u16 ldo_mirror_count;
199 struct lod_mirror_entry *ldo_mirrors;
200 __u32 ldo_is_composite:1,
205 /* directory stripe (LMV) */
207 /* Slave stripe count for striped directory. */
208 __u16 ldo_dir_stripe_count;
209 /* How many stripes allocated for a striped directory */
210 __u16 ldo_dir_stripes_allocated;
211 __u32 ldo_dir_stripe_offset;
212 __u32 ldo_dir_hash_type;
213 __u32 ldo_dir_migrate_offset;
214 __u32 ldo_dir_migrate_hash;
215 /* Is a slave stripe of striped directory? */
216 __u32 ldo_dir_slave_stripe:1,
218 /* the stripe has been loaded */
219 ldo_dir_stripe_loaded:1,
220 /* foreign directory */
223 * This default LMV is parent default LMV, which will be
224 * used in child creation, and it's not cached, so this
225 * field is invalid after create, make sure it's used by
226 * lod_dir_striping_create_internal() only.
228 struct lod_default_striping *ldo_def_striping;
233 /* foreign/raw format LOV */
234 char *ldo_foreign_lov;
235 size_t ldo_foreign_lov_size;
238 /* foreign/raw format LMV */
239 char *ldo_foreign_lmv;
240 size_t ldo_foreign_lmv_size;
243 /* file stripe (LOV) */
244 struct lod_layout_component *ldo_comp_entries;
245 /* slave stripes of striped directory (LMV) */
246 struct dt_object **ldo_stripe;
251 #define lod_foreach_mirror_comp(comp, lo, mirror_idx) \
252 for (comp = &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_start]; \
253 comp <= &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_end]; \
256 static inline bool lod_is_flr(const struct lod_object *lo)
258 if (!lo->ldo_is_composite)
261 return (lo->ldo_flr_state & LCM_FL_FLR_MASK) != LCM_FL_NONE;
264 static inline int lod_set_pool(char **pool, const char *new_pool)
268 if (*pool == new_pool)
272 len = strlen(*pool) + 1;
273 OBD_FREE(*pool, len);
276 if (new_pool != NULL) {
277 len = strlen(new_pool) + 1;
278 OBD_ALLOC(*pool, len);
281 strlcpy(*pool, new_pool, len);
286 static inline int lod_set_def_pool(struct lod_default_striping *lds,
287 int i, const char *new_pool)
289 return lod_set_pool(&lds->lds_def_comp_entries[i].llc_pool, new_pool);
292 static inline int lod_obj_set_pool(struct lod_object *lo, int i,
293 const char *new_pool)
295 return lod_set_pool(&lo->ldo_comp_entries[i].llc_pool, new_pool);
299 * Create new layout generation.
301 * The only requirement for layout generation is that it changes when
302 * the layout is modified, so a circular counter is sufficient for the
303 * low rate of layout modifications.
305 * Layout generation is also used to generate unique component ID.
306 * To detect generation overflow, we preserve the highest bit of the
307 * generation when it wrapped.
309 static inline void lod_obj_inc_layout_gen(struct lod_object *lo)
311 __u32 preserve = lo->ldo_layout_gen & ~LCME_ID_MASK;
312 lo->ldo_layout_gen++;
313 lo->ldo_layout_gen |= preserve;
314 /* Zero is not a valid generation */
315 if (unlikely((lo->ldo_layout_gen & LCME_ID_MASK) == 0))
316 lo->ldo_layout_gen++;
320 struct dt_object *lit_obj; /* object from the layer below */
321 /* stripe offset of iteration */
322 __u32 lit_stripe_index;
324 struct dt_it *lit_it; /* iterator from the layer below */
327 struct lod_thread_info {
328 /* per-thread buffer for LOV EA, may be vmalloc'd */
330 __u32 lti_ea_store_size;
331 /* per-thread buffer for LMV EA */
332 struct lu_buf lti_buf;
333 struct ost_id lti_ostid;
334 struct lu_fid lti_fid;
335 struct obd_statfs lti_osfs;
336 struct lu_attr lti_attr;
337 struct lod_it lti_it;
338 struct ldlm_res_id lti_res_id;
339 /* used to hold lu_dirent, sizeof(struct lu_dirent) + NAME_MAX */
340 char lti_key[sizeof(struct lu_dirent) +
342 struct dt_object_format lti_format;
343 struct lu_name lti_name;
344 struct lu_buf lti_linkea_buf;
345 struct dt_insert_rec lti_dt_rec;
346 struct llog_catid lti_cid;
347 struct llog_cookie lti_cookie;
348 struct lustre_cfg lti_lustre_cfg;
349 /* used to store parent default striping in create */
350 struct lod_default_striping lti_def_striping;
351 struct filter_fid lti_ff;
353 size_t lti_comp_size;
355 struct lu_attr lti_layout_attr;
356 /* object allocation avoid guide info */
357 struct lod_avoid_guide lti_avoid;
360 extern const struct lu_device_operations lod_lu_ops;
362 static inline int lu_device_is_lod(struct lu_device *d)
364 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &lod_lu_ops);
367 static inline struct lod_device* lu2lod_dev(struct lu_device *d)
369 LASSERT(lu_device_is_lod(d));
370 return container_of0(d, struct lod_device, lod_dt_dev.dd_lu_dev);
373 static inline struct lu_device *lod2lu_dev(struct lod_device *d)
375 return &d->lod_dt_dev.dd_lu_dev;
378 static inline struct obd_device *lod2obd(struct lod_device *d)
380 return d->lod_dt_dev.dd_lu_dev.ld_obd;
383 static inline struct lod_device *dt2lod_dev(struct dt_device *d)
385 LASSERT(lu_device_is_lod(&d->dd_lu_dev));
386 return container_of0(d, struct lod_device, lod_dt_dev);
389 static inline struct lod_object *lu2lod_obj(struct lu_object *o)
391 LASSERT(ergo(o != NULL, lu_device_is_lod(o->lo_dev)));
392 return container_of0(o, struct lod_object, ldo_obj.do_lu);
395 static inline struct lu_object *lod2lu_obj(struct lod_object *obj)
397 return &obj->ldo_obj.do_lu;
400 static inline const struct lu_fid *lod_object_fid(struct lod_object *obj)
402 return lu_object_fid(lod2lu_obj(obj));
405 static inline struct lod_object *lod_obj(const struct lu_object *o)
407 LASSERT(lu_device_is_lod(o->lo_dev));
408 return container_of0(o, struct lod_object, ldo_obj.do_lu);
411 static inline struct lod_object *lod_dt_obj(const struct dt_object *d)
413 return lod_obj(&d->do_lu);
416 static inline struct dt_object* lod_object_child(struct lod_object *o)
418 return container_of0(lu_object_next(lod2lu_obj(o)),
419 struct dt_object, do_lu);
422 static inline bool lod_obj_is_striped(struct dt_object *dt)
424 struct lod_object *lo = lod_dt_obj(dt);
427 if (!dt_object_exists(dt_object_child(dt)))
430 if (S_ISDIR(dt->do_lu.lo_header->loh_attr))
431 return lo->ldo_dir_stripe_count != 0;
433 if (lo->ldo_is_foreign)
436 for (i = 0; i < lo->ldo_comp_cnt; i++) {
437 if (lo->ldo_comp_entries[i].llc_stripe == NULL)
439 LASSERT(lo->ldo_comp_entries[i].llc_stripe_count > 0);
445 extern struct lu_context_key lod_thread_key;
447 static inline struct lod_thread_info *lod_env_info(const struct lu_env *env)
449 struct lod_thread_info *info;
450 info = lu_context_key_get(&env->le_ctx, &lod_thread_key);
455 static inline struct lu_name *
456 lod_name_get(const struct lu_env *env, const void *area, int len)
458 struct lu_name *lname;
460 lname = &lod_env_info(env)->lti_name;
461 lname->ln_name = area;
462 lname->ln_namelen = len;
466 static inline struct lod_default_striping *
467 lod_lds_buf_get(const struct lu_env *env)
469 struct lod_thread_info *info = lod_env_info(env);
471 info->lti_def_striping.lds_def_striping_set = 0;
472 info->lti_def_striping.lds_dir_def_striping_set = 0;
473 return &info->lti_def_striping;
476 static inline void lod_layout_get_pool(struct lod_layout_component *entries,
477 int count, char *pool, int len)
481 for (i = 0; i < count; i++) {
482 if (entries[i].llc_pool != NULL) {
483 strlcpy(pool, entries[i].llc_pool, len);
489 #define lod_foreach_mdt(lod, mdt) ltd_foreach_tgt(&(lod)->lod_mdt_descs, mdt)
490 #define lod_foreach_ost(lod, ost) ltd_foreach_tgt(&(lod)->lod_ost_descs, ost)
493 extern struct kmem_cache *lod_object_kmem;
494 int lod_fld_lookup(const struct lu_env *env, struct lod_device *lod,
495 const struct lu_fid *fid, __u32 *tgt, int *flags);
496 int lod_sub_init_llog(const struct lu_env *env, struct lod_device *lod,
497 struct dt_device *dt);
498 void lod_sub_fini_llog(const struct lu_env *env,
499 struct dt_device *dt, struct ptlrpc_thread *thread);
500 int lodname2mdt_index(char *lodname, __u32 *mdt_index);
501 extern void target_recovery_fini(struct obd_device *obd);
504 void lod_getref(struct lod_tgt_descs *ltd);
505 void lod_putref(struct lod_device *lod, struct lod_tgt_descs *ltd);
506 int lod_add_device(const struct lu_env *env, struct lod_device *lod,
507 char *osp, unsigned index, unsigned gen, int mdt_index,
508 char *type, int active);
509 int lod_del_device(const struct lu_env *env, struct lod_device *lod,
510 struct lod_tgt_descs *ltd, char *osp, unsigned int idx,
512 int lod_fini_tgt(const struct lu_env *env, struct lod_device *lod,
513 struct lod_tgt_descs *ltd);
514 int lod_striping_load(const struct lu_env *env, struct lod_object *lo);
515 int lod_striping_reload(const struct lu_env *env, struct lod_object *lo,
516 const struct lu_buf *buf);
518 int lod_get_ea(const struct lu_env *env, struct lod_object *lo,
521 lod_get_lov_ea(const struct lu_env *env, struct lod_object *lo)
523 return lod_get_ea(env, lo, XATTR_NAME_LOV);
527 lod_get_lmv_ea(const struct lu_env *env, struct lod_object *lo)
529 return lod_get_ea(env, lo, XATTR_NAME_LMV);
533 lod_get_default_lmv_ea(const struct lu_env *env, struct lod_object *lo)
535 return lod_get_ea(env, lo, XATTR_NAME_DEFAULT_LMV);
539 lod_comp_set_init(struct lod_layout_component *entry)
541 entry->llc_flags |= LCME_FL_INIT;
545 lod_comp_unset_init(struct lod_layout_component *entry)
547 entry->llc_flags &= ~LCME_FL_INIT;
551 lod_comp_inited(const struct lod_layout_component *entry)
553 return entry->llc_flags & LCME_FL_INIT;
557 * For a PFL file, some of its component could be un-instantiated, so
558 * that their lov_ost_data_v1 array is not needed, we'd use this function
559 * to reduce the LOVEA buffer size.
561 * Note: if llc_ostlist contains value, we'd need lov_ost_data_v1 array to
562 * save the specified OST index list.
565 lod_comp_shrink_stripe_count(struct lod_layout_component *lod_comp,
569 * Need one lov_ost_data_v1 to store invalid ost_idx, please refer to
570 * lod_parse_striping()
572 if (!lod_comp_inited(lod_comp) && lod_comp->llc_ostlist.op_count == 0)
576 void lod_fix_desc(struct lov_desc *desc);
577 void lod_fix_desc_qos_maxage(__u32 *val);
578 void lod_fix_desc_pattern(__u32 *val);
579 void lod_fix_desc_stripe_count(__u32 *val);
580 void lod_fix_desc_stripe_size(__u64 *val);
581 void lod_fix_lmv_desc_pattern(__u32 *val);
582 int lod_pools_init(struct lod_device *m, struct lustre_cfg *cfg);
583 int lod_pools_fini(struct lod_device *m);
584 int lod_parse_striping(const struct lu_env *env, struct lod_object *mo,
585 const struct lu_buf *buf);
586 int lod_parse_dir_striping(const struct lu_env *env, struct lod_object *lo,
587 const struct lu_buf *buf);
588 int lod_initialize_objects(const struct lu_env *env, struct lod_object *mo,
589 struct lov_ost_data_v1 *objs, int index);
590 int lod_verify_striping(struct lod_device *d, struct lod_object *lo,
591 const struct lu_buf *buf, bool is_from_disk);
592 int lod_generate_lovea(const struct lu_env *env, struct lod_object *lo,
593 struct lov_mds_md *lmm, int *lmm_size, bool is_dir);
594 int lod_ea_store_resize(struct lod_thread_info *info, size_t size);
595 int lod_def_striping_comp_resize(struct lod_default_striping *lds, __u16 count);
596 void lod_free_def_comp_entries(struct lod_default_striping *lds);
597 void lod_free_comp_entries(struct lod_object *lo);
598 int lod_alloc_comp_entries(struct lod_object *lo, int mirror_cnt, int comp_cnt);
599 int lod_fill_mirrors(struct lod_object *lo);
602 int lod_tgt_pool_init(struct lu_tgt_pool *op, unsigned int count);
603 int lod_tgt_pool_free(struct lu_tgt_pool *op);
604 int lod_tgt_pool_add(struct lu_tgt_pool *op, __u32 idx, unsigned int min_count);
605 int lod_tgt_pool_remove(struct lu_tgt_pool *op, __u32 idx);
606 int lod_tgt_pool_extend(struct lu_tgt_pool *op, unsigned int min_count);
607 struct pool_desc *lod_find_pool(struct lod_device *lod, char *poolname);
608 void lod_pool_putref(struct pool_desc *pool);
609 int lod_pool_del(struct obd_device *obd, char *poolname);
610 extern struct cfs_hash_ops pool_hash_operations;
611 int lod_check_index_in_pool(__u32 idx, struct pool_desc *pool);
612 int lod_pool_new(struct obd_device *obd, char *poolname);
613 int lod_pool_add(struct obd_device *obd, char *poolname, char *ostname);
614 int lod_pool_remove(struct obd_device *obd, char *poolname, char *ostname);
616 struct lod_obj_stripe_cb_data;
617 typedef int (*lod_obj_stripe_cb_t)(const struct lu_env *env,
618 struct lod_object *lo, struct dt_object *dt,
620 int comp_idx, int stripe_idx,
621 struct lod_obj_stripe_cb_data *data);
622 typedef bool (*lod_obj_comp_skip_cb_t)(const struct lu_env *env,
623 struct lod_object *lo, int comp_idx,
624 struct lod_obj_stripe_cb_data *data);
625 typedef int (*lod_obj_comp_cb_t)(const struct lu_env *env,
626 struct lod_object *lo, int comp_idx,
627 struct lod_obj_stripe_cb_data *data);
628 struct lod_obj_stripe_cb_data {
630 const struct lu_attr *locd_attr;
632 const struct lu_buf *locd_buf;
634 lod_obj_stripe_cb_t locd_stripe_cb;
635 lod_obj_comp_skip_cb_t locd_comp_skip_cb;
636 lod_obj_comp_cb_t locd_comp_cb;
641 int lod_mdt_alloc_qos(const struct lu_env *env, struct lod_object *lo,
642 struct dt_object **stripes);
643 int lod_mdt_alloc_rr(const struct lu_env *env, struct lod_object *lo,
644 struct dt_object **stripe);
645 int lod_prepare_create(const struct lu_env *env, struct lod_object *lo,
646 struct lu_attr *attr, const struct lu_buf *buf,
648 int lod_use_defined_striping(const struct lu_env *, struct lod_object *,
649 const struct lu_buf *);
650 int lod_qos_parse_config(const struct lu_env *env, struct lod_object *lo,
651 const struct lu_buf *buf);
652 int lod_qos_prep_create(const struct lu_env *env, struct lod_object *lo,
653 struct lu_attr *attr, struct thandle *th,
655 __u16 lod_comp_entry_stripe_count(struct lod_object *lo,
656 struct lod_layout_component *entry,
658 __u16 lod_get_stripe_count(struct lod_device *lod, struct lod_object *lo,
659 __u16 stripe_count, bool overstriping);
660 void lod_qos_statfs_update(const struct lu_env *env, struct lod_device *lod,
661 struct lu_tgt_descs *ltd);
664 int lod_procfs_init(struct lod_device *lod);
665 void lod_procfs_fini(struct lod_device *lod);
668 extern struct dt_object_operations lod_obj_ops;
669 extern struct lu_object_operations lod_lu_obj_ops;
671 int lod_load_lmv_shards(const struct lu_env *env, struct lod_object *lo,
672 struct lu_buf *buf, bool resize);
673 int lod_declare_striped_create(const struct lu_env *env, struct dt_object *dt,
674 struct lu_attr *attr,
675 const struct lu_buf *lovea, struct thandle *th);
676 int lod_striped_create(const struct lu_env *env, struct dt_object *dt,
677 struct lu_attr *attr, struct dt_object_format *dof,
679 int lod_alloc_foreign_lov(struct lod_object *lo, size_t size);
680 void lod_free_foreign_lov(struct lod_object *lo);
681 void lod_striping_free_nolock(const struct lu_env *env, struct lod_object *lo);
682 void lod_striping_free(const struct lu_env *env, struct lod_object *lo);
684 int lod_obj_for_each_stripe(const struct lu_env *env, struct lod_object *lo,
686 struct lod_obj_stripe_cb_data *data);
687 int lod_comp_copy_ost_lists(struct lod_layout_component *lod_comp,
688 struct lov_user_md_v3 *v3);
690 /* lod_sub_object.c */
691 struct thandle *lod_sub_get_thandle(const struct lu_env *env,
693 const struct dt_object *sub_obj,
694 bool *record_update);
695 int lod_sub_declare_create(const struct lu_env *env, struct dt_object *dt,
696 struct lu_attr *attr,
697 struct dt_allocation_hint *hint,
698 struct dt_object_format *dof, struct thandle *th);
699 int lod_sub_create(const struct lu_env *env, struct dt_object *dt,
700 struct lu_attr *attr, struct dt_allocation_hint *hint,
701 struct dt_object_format *dof, struct thandle *th);
702 int lod_sub_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
704 int lod_sub_ref_add(const struct lu_env *env, struct dt_object *dt,
706 int lod_sub_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
708 int lod_sub_ref_del(const struct lu_env *env, struct dt_object *dt,
710 int lod_sub_declare_destroy(const struct lu_env *env, struct dt_object *dt,
712 int lod_sub_destroy(const struct lu_env *env, struct dt_object *dt,
714 int lod_sub_declare_insert(const struct lu_env *env, struct dt_object *dt,
715 const struct dt_rec *rec, const struct dt_key *key,
717 int lod_sub_insert(const struct lu_env *env, struct dt_object *dt,
718 const struct dt_rec *rec, const struct dt_key *key,
720 int lod_sub_declare_delete(const struct lu_env *env, struct dt_object *dt,
721 const struct dt_key *key, struct thandle *th);
722 int lod_sub_delete(const struct lu_env *env, struct dt_object *dt,
723 const struct dt_key *name, struct thandle *th);
724 int lod_sub_declare_xattr_set(const struct lu_env *env, struct dt_object *dt,
725 const struct lu_buf *buf, const char *name,
726 int fl, struct thandle *th);
727 int lod_sub_xattr_set(const struct lu_env *env, struct dt_object *dt,
728 const struct lu_buf *buf, const char *name, int fl,
730 int lod_sub_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
731 const struct lu_attr *attr, struct thandle *th);
732 int lod_sub_attr_set(const struct lu_env *env, struct dt_object *dt,
733 const struct lu_attr *attr, struct thandle *th);
734 int lod_sub_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
735 const char *name, struct thandle *th);
736 int lod_sub_xattr_del(const struct lu_env *env, struct dt_object *dt,
737 const char *name, struct thandle *th);
738 int lod_sub_declare_write(const struct lu_env *env, struct dt_object *dt,
739 const struct lu_buf *buf, loff_t pos,
741 ssize_t lod_sub_write(const struct lu_env *env, struct dt_object *dt,
742 const struct lu_buf *buf, loff_t *pos,
744 int lod_sub_declare_punch(const struct lu_env *env, struct dt_object *dt,
745 __u64 start, __u64 end, struct thandle *th);
746 int lod_sub_punch(const struct lu_env *env, struct dt_object *dt,
747 __u64 start, __u64 end, struct thandle *th);
749 int lod_sub_prep_llog(const struct lu_env *env, struct lod_device *lod,
750 struct dt_device *dt, int index);