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 ost_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 /* lov settings descriptor storing static information */
104 struct lov_desc lod_desc;
106 /* protect ld_active_tgt_count, ltd_active and lod_md_root */
109 /* Description of OST */
110 struct lod_tgt_descs lod_ost_descs;
111 /* Description of MDT */
112 struct lod_tgt_descs lod_mdt_descs;
114 /* Recovery thread for lod_child */
115 struct ptlrpc_thread lod_child_recovery_thread;
117 /* maximum EA size underlied OSD may have */
118 unsigned int lod_osd_max_easize;
119 /* maximum size of MDT stripe for Data-on-MDT files. */
120 unsigned int lod_dom_max_stripesize;
122 /*FIXME: When QOS and pool is implemented for MDT, probably these
123 * structure should be moved to lod_tgt_descs as well.
125 /* QoS info per LOD */
126 struct lu_qos lod_qos; /* qos info per lod */
129 struct ost_pool lod_pool_info; /* all OSTs in a packed array */
131 struct cfs_hash *lod_pools_hash_body; /* used for key access */
132 struct list_head lod_pool_list; /* used for sequential access */
133 struct proc_dir_entry *lod_pool_proc_entry;
135 enum lustre_sec_part lod_sp_me;
137 struct proc_dir_entry *lod_symlink;
138 struct dentry *lod_debugfs;
140 /* ROOT object, used to fetch FS default striping */
141 struct lod_object *lod_md_root;
144 #define lod_osts lod_ost_descs.ltd_tgts
145 #define lod_ost_bitmap lod_ost_descs.ltd_tgt_bitmap
146 #define lod_ostnr lod_ost_descs.ltd_tgtnr
147 #define lod_osts_size lod_ost_descs.ltd_tgts_size
148 #define ltd_ost ltd_tgt
149 #define lod_ost_desc lu_tgt_desc
151 #define lod_mdts lod_mdt_descs.ltd_tgts
152 #define lod_mdt_bitmap lod_mdt_descs.ltd_tgt_bitmap
153 #define lod_remote_mdt_count lod_mdt_descs.ltd_tgtnr
154 #define lod_mdts_size lod_mdt_descs.ltd_tgts_size
155 #define ltd_mdt ltd_tgt
156 #define lod_mdt_desc lu_tgt_desc
158 struct lod_layout_component {
159 struct lu_extent llc_extent;
162 __u32 llc_stripe_size;
164 __u16 llc_layout_gen;
165 __u16 llc_stripe_offset;
166 __u16 llc_stripe_count;
167 __u16 llc_stripes_allocated;
168 __u64 llc_timestamp; /* snapshot time */
170 /* ost list specified with LOV_USER_MAGIC_SPECIFIC lum */
171 struct ost_pool llc_ostlist;
172 struct dt_object **llc_stripe;
173 __u32 *llc_ost_indices;
176 struct lod_default_striping {
178 /* current layout component count */
179 __u16 lds_def_comp_cnt;
180 __u16 lds_def_mirror_cnt;
181 /* the largest comp count ever used */
182 __u32 lds_def_comp_size_cnt;
183 struct lod_layout_component *lds_def_comp_entries;
185 __u32 lds_dir_def_stripe_count;
186 __u32 lds_dir_def_stripe_offset;
187 __u32 lds_dir_def_hash_type;
188 /* default file striping flags (LOV) */
189 __u32 lds_def_striping_set:1,
190 lds_def_striping_is_composite:1,
191 /* default dir striping flags (LMV) */
192 lds_dir_def_striping_set:1;
195 struct lod_mirror_entry {
200 /* start,end index of this mirror in ldo_comp_entries */
206 /* common fields for both files and directories */
207 struct dt_object ldo_obj;
208 struct mutex ldo_layout_mutex;
210 /* file stripe (LOV) */
212 __u32 ldo_layout_gen;
213 /* Layout component count for a regular file.
214 * It equals to 1 for non-composite layout. */
216 /* Layout mirror count for a PFLR file.
217 * It's 0 for files with non-composite layout. */
218 __u16 ldo_mirror_count;
219 struct lod_mirror_entry *ldo_mirrors;
220 __u32 ldo_is_composite:1,
225 /* directory stripe (LMV) */
227 /* Slave stripe count for striped directory. */
228 __u16 ldo_dir_stripe_count;
229 /* How many stripes allocated for a striped directory */
230 __u16 ldo_dir_stripes_allocated;
231 __u32 ldo_dir_stripe_offset;
232 __u32 ldo_dir_hash_type;
233 __u32 ldo_dir_migrate_offset;
234 __u32 ldo_dir_migrate_hash;
235 /* Is a slave stripe of striped directory? */
236 __u32 ldo_dir_slave_stripe:1,
238 /* the stripe has been loaded */
239 ldo_dir_stripe_loaded:1,
240 /* foreign directory */
243 * This default LMV is parent default LMV, which will be
244 * used in child creation, and it's not cached, so this
245 * field is invalid after create, make sure it's used by
246 * lod_dir_striping_create_internal() only.
248 struct lod_default_striping *ldo_def_striping;
253 /* foreign/raw format LOV */
254 char *ldo_foreign_lov;
255 size_t ldo_foreign_lov_size;
258 /* foreign/raw format LMV */
259 char *ldo_foreign_lmv;
260 size_t ldo_foreign_lmv_size;
263 /* file stripe (LOV) */
264 struct lod_layout_component *ldo_comp_entries;
265 /* slave stripes of striped directory (LMV) */
266 struct dt_object **ldo_stripe;
271 #define lod_foreach_mirror_comp(comp, lo, mirror_idx) \
272 for (comp = &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_start]; \
273 comp <= &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_end]; \
276 static inline bool lod_is_flr(const struct lod_object *lo)
278 if (!lo->ldo_is_composite)
281 return (lo->ldo_flr_state & LCM_FL_FLR_MASK) != LCM_FL_NONE;
284 static inline int lod_set_pool(char **pool, const char *new_pool)
288 if (*pool == new_pool)
292 len = strlen(*pool) + 1;
293 OBD_FREE(*pool, len);
296 if (new_pool != NULL) {
297 len = strlen(new_pool) + 1;
298 OBD_ALLOC(*pool, len);
301 strlcpy(*pool, new_pool, len);
306 static inline int lod_set_def_pool(struct lod_default_striping *lds,
307 int i, const char *new_pool)
309 return lod_set_pool(&lds->lds_def_comp_entries[i].llc_pool, new_pool);
312 static inline int lod_obj_set_pool(struct lod_object *lo, int i,
313 const char *new_pool)
315 return lod_set_pool(&lo->ldo_comp_entries[i].llc_pool, new_pool);
319 * Create new layout generation.
321 * The only requirement for layout generation is that it changes when
322 * the layout is modified, so a circular counter is sufficient for the
323 * low rate of layout modifications.
325 * Layout generation is also used to generate unique component ID.
326 * To detect generation overflow, we preserve the highest bit of the
327 * generation when it wrapped.
329 static inline void lod_obj_inc_layout_gen(struct lod_object *lo)
331 __u32 preserve = lo->ldo_layout_gen & ~LCME_ID_MASK;
332 lo->ldo_layout_gen++;
333 lo->ldo_layout_gen |= preserve;
334 /* Zero is not a valid generation */
335 if (unlikely((lo->ldo_layout_gen & LCME_ID_MASK) == 0))
336 lo->ldo_layout_gen++;
340 struct dt_object *lit_obj; /* object from the layer below */
341 /* stripe offset of iteration */
342 __u32 lit_stripe_index;
344 struct dt_it *lit_it; /* iterator from the layer below */
347 struct lod_thread_info {
348 /* per-thread buffer for LOV EA, may be vmalloc'd */
350 __u32 lti_ea_store_size;
351 /* per-thread buffer for LMV EA */
352 struct lu_buf lti_buf;
353 struct ost_id lti_ostid;
354 struct lu_fid lti_fid;
355 struct obd_statfs lti_osfs;
356 struct lu_attr lti_attr;
357 struct lod_it lti_it;
358 struct ldlm_res_id lti_res_id;
359 /* used to hold lu_dirent, sizeof(struct lu_dirent) + NAME_MAX */
360 char lti_key[sizeof(struct lu_dirent) +
362 struct dt_object_format lti_format;
363 struct lu_name lti_name;
364 struct lu_buf lti_linkea_buf;
365 struct dt_insert_rec lti_dt_rec;
366 struct llog_catid lti_cid;
367 struct llog_cookie lti_cookie;
368 struct lustre_cfg lti_lustre_cfg;
369 /* used to store parent default striping in create */
370 struct lod_default_striping lti_def_striping;
371 struct filter_fid lti_ff;
373 size_t lti_comp_size;
375 struct lu_attr lti_layout_attr;
376 /* object allocation avoid guide info */
377 struct lod_avoid_guide lti_avoid;
380 extern const struct lu_device_operations lod_lu_ops;
382 static inline int lu_device_is_lod(struct lu_device *d)
384 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &lod_lu_ops);
387 static inline struct lod_device* lu2lod_dev(struct lu_device *d)
389 LASSERT(lu_device_is_lod(d));
390 return container_of0(d, struct lod_device, lod_dt_dev.dd_lu_dev);
393 static inline struct lu_device *lod2lu_dev(struct lod_device *d)
395 return &d->lod_dt_dev.dd_lu_dev;
398 static inline struct obd_device *lod2obd(struct lod_device *d)
400 return d->lod_dt_dev.dd_lu_dev.ld_obd;
403 static inline struct lod_device *dt2lod_dev(struct dt_device *d)
405 LASSERT(lu_device_is_lod(&d->dd_lu_dev));
406 return container_of0(d, struct lod_device, lod_dt_dev);
409 static inline struct lod_object *lu2lod_obj(struct lu_object *o)
411 LASSERT(ergo(o != NULL, lu_device_is_lod(o->lo_dev)));
412 return container_of0(o, struct lod_object, ldo_obj.do_lu);
415 static inline struct lu_object *lod2lu_obj(struct lod_object *obj)
417 return &obj->ldo_obj.do_lu;
420 static inline const struct lu_fid *lod_object_fid(struct lod_object *obj)
422 return lu_object_fid(lod2lu_obj(obj));
425 static inline struct lod_object *lod_obj(const struct lu_object *o)
427 LASSERT(lu_device_is_lod(o->lo_dev));
428 return container_of0(o, struct lod_object, ldo_obj.do_lu);
431 static inline struct lod_object *lod_dt_obj(const struct dt_object *d)
433 return lod_obj(&d->do_lu);
436 static inline struct dt_object* lod_object_child(struct lod_object *o)
438 return container_of0(lu_object_next(lod2lu_obj(o)),
439 struct dt_object, do_lu);
442 static inline bool lod_obj_is_striped(struct dt_object *dt)
444 struct lod_object *lo = lod_dt_obj(dt);
447 if (!dt_object_exists(dt_object_child(dt)))
450 if (S_ISDIR(dt->do_lu.lo_header->loh_attr))
451 return lo->ldo_dir_stripe_count != 0;
453 if (lo->ldo_is_foreign)
456 for (i = 0; i < lo->ldo_comp_cnt; i++) {
457 if (lo->ldo_comp_entries[i].llc_stripe == NULL)
459 LASSERT(lo->ldo_comp_entries[i].llc_stripe_count > 0);
465 extern struct lu_context_key lod_thread_key;
467 static inline struct lod_thread_info *lod_env_info(const struct lu_env *env)
469 struct lod_thread_info *info;
470 info = lu_context_key_get(&env->le_ctx, &lod_thread_key);
475 static inline struct lu_name *
476 lod_name_get(const struct lu_env *env, const void *area, int len)
478 struct lu_name *lname;
480 lname = &lod_env_info(env)->lti_name;
481 lname->ln_name = area;
482 lname->ln_namelen = len;
486 static inline struct lod_default_striping *
487 lod_lds_buf_get(const struct lu_env *env)
489 struct lod_thread_info *info = lod_env_info(env);
491 info->lti_def_striping.lds_def_striping_set = 0;
492 info->lti_def_striping.lds_dir_def_striping_set = 0;
493 return &info->lti_def_striping;
496 static inline void lod_layout_get_pool(struct lod_layout_component *entries,
497 int count, char *pool, int len)
501 for (i = 0; i < count; i++) {
502 if (entries[i].llc_pool != NULL) {
503 strlcpy(pool, entries[i].llc_pool, len);
509 #define lod_foreach_ost(__dev, index) \
510 if ((__dev)->lod_osts_size > 0) \
511 cfs_foreach_bit((__dev)->lod_ost_bitmap, (index))
513 #define lod_foreach_mdt(mdt_dev, index) \
514 cfs_foreach_bit((mdt_dev)->lod_mdt_bitmap, (index))
517 extern struct kmem_cache *lod_object_kmem;
518 int lod_fld_lookup(const struct lu_env *env, struct lod_device *lod,
519 const struct lu_fid *fid, __u32 *tgt, int *flags);
520 int lod_sub_init_llog(const struct lu_env *env, struct lod_device *lod,
521 struct dt_device *dt);
522 void lod_sub_fini_llog(const struct lu_env *env,
523 struct dt_device *dt, struct ptlrpc_thread *thread);
524 int lodname2mdt_index(char *lodname, __u32 *mdt_index);
525 extern void target_recovery_fini(struct obd_device *obd);
528 void lod_getref(struct lod_tgt_descs *ltd);
529 void lod_putref(struct lod_device *lod, struct lod_tgt_descs *ltd);
530 int lod_add_device(const struct lu_env *env, struct lod_device *lod,
531 char *osp, unsigned index, unsigned gen, int mdt_index,
532 char *type, int active);
533 int lod_del_device(const struct lu_env *env, struct lod_device *lod,
534 struct lod_tgt_descs *ltd, char *osp, unsigned idx,
535 unsigned gen, bool for_ost);
536 int lod_fini_tgt(const struct lu_env *env, struct lod_device *lod,
537 struct lod_tgt_descs *ltd, bool for_ost);
538 int lod_striping_load(const struct lu_env *env, struct lod_object *lo);
539 int lod_striping_reload(const struct lu_env *env, struct lod_object *lo,
540 const struct lu_buf *buf);
542 int lod_get_ea(const struct lu_env *env, struct lod_object *lo,
545 lod_get_lov_ea(const struct lu_env *env, struct lod_object *lo)
547 return lod_get_ea(env, lo, XATTR_NAME_LOV);
551 lod_get_lmv_ea(const struct lu_env *env, struct lod_object *lo)
553 return lod_get_ea(env, lo, XATTR_NAME_LMV);
557 lod_get_default_lmv_ea(const struct lu_env *env, struct lod_object *lo)
559 return lod_get_ea(env, lo, XATTR_NAME_DEFAULT_LMV);
563 lod_comp_set_init(struct lod_layout_component *entry)
565 entry->llc_flags |= LCME_FL_INIT;
569 lod_comp_unset_init(struct lod_layout_component *entry)
571 entry->llc_flags &= ~LCME_FL_INIT;
575 lod_comp_inited(const struct lod_layout_component *entry)
577 return entry->llc_flags & LCME_FL_INIT;
581 * For a PFL file, some of its component could be un-instantiated, so
582 * that their lov_ost_data_v1 array is not needed, we'd use this function
583 * to reduce the LOVEA buffer size.
585 * Note: if llc_ostlist contains value, we'd need lov_ost_data_v1 array to
586 * save the specified OST index list.
589 lod_comp_shrink_stripe_count(struct lod_layout_component *lod_comp,
593 * Need one lov_ost_data_v1 to store invalid ost_idx, please refer to
594 * lod_parse_striping()
596 if (!lod_comp_inited(lod_comp) && lod_comp->llc_ostlist.op_count == 0)
600 void lod_fix_desc(struct lov_desc *desc);
601 void lod_fix_desc_qos_maxage(__u32 *val);
602 void lod_fix_desc_pattern(__u32 *val);
603 void lod_fix_desc_stripe_count(__u32 *val);
604 void lod_fix_desc_stripe_size(__u64 *val);
605 int lod_pools_init(struct lod_device *m, struct lustre_cfg *cfg);
606 int lod_pools_fini(struct lod_device *m);
607 int lod_parse_striping(const struct lu_env *env, struct lod_object *mo,
608 const struct lu_buf *buf);
609 int lod_parse_dir_striping(const struct lu_env *env, struct lod_object *lo,
610 const struct lu_buf *buf);
611 int lod_initialize_objects(const struct lu_env *env, struct lod_object *mo,
612 struct lov_ost_data_v1 *objs, int index);
613 int lod_verify_striping(struct lod_device *d, struct lod_object *lo,
614 const struct lu_buf *buf, bool is_from_disk);
615 int lod_generate_lovea(const struct lu_env *env, struct lod_object *lo,
616 struct lov_mds_md *lmm, int *lmm_size, bool is_dir);
617 int lod_ea_store_resize(struct lod_thread_info *info, size_t size);
618 int lod_def_striping_comp_resize(struct lod_default_striping *lds, __u16 count);
619 void lod_free_def_comp_entries(struct lod_default_striping *lds);
620 void lod_free_comp_entries(struct lod_object *lo);
621 int lod_alloc_comp_entries(struct lod_object *lo, int mirror_cnt, int comp_cnt);
622 int lod_fill_mirrors(struct lod_object *lo);
625 int lod_ost_pool_add(struct ost_pool *op, __u32 idx, unsigned int min_count);
626 int lod_ost_pool_remove(struct ost_pool *op, __u32 idx);
627 int lod_ost_pool_extend(struct ost_pool *op, unsigned int min_count);
628 struct pool_desc *lod_find_pool(struct lod_device *lod, char *poolname);
629 void lod_pool_putref(struct pool_desc *pool);
630 int lod_ost_pool_free(struct ost_pool *op);
631 int lod_pool_del(struct obd_device *obd, char *poolname);
632 int lod_ost_pool_init(struct ost_pool *op, unsigned int count);
633 extern struct cfs_hash_ops pool_hash_operations;
634 int lod_check_index_in_pool(__u32 idx, struct pool_desc *pool);
635 int lod_pool_new(struct obd_device *obd, char *poolname);
636 int lod_pool_add(struct obd_device *obd, char *poolname, char *ostname);
637 int lod_pool_remove(struct obd_device *obd, char *poolname, char *ostname);
639 struct lod_obj_stripe_cb_data;
640 typedef int (*lod_obj_stripe_cb_t)(const struct lu_env *env,
641 struct lod_object *lo, struct dt_object *dt,
643 int comp_idx, int stripe_idx,
644 struct lod_obj_stripe_cb_data *data);
645 typedef bool (*lod_obj_comp_skip_cb_t)(const struct lu_env *env,
646 struct lod_object *lo, int comp_idx,
647 struct lod_obj_stripe_cb_data *data);
648 typedef int (*lod_obj_comp_cb_t)(const struct lu_env *env,
649 struct lod_object *lo, int comp_idx,
650 struct lod_obj_stripe_cb_data *data);
651 struct lod_obj_stripe_cb_data {
653 const struct lu_attr *locd_attr;
655 const struct lu_buf *locd_buf;
657 lod_obj_stripe_cb_t locd_stripe_cb;
658 lod_obj_comp_skip_cb_t locd_comp_skip_cb;
659 lod_obj_comp_cb_t locd_comp_cb;
664 int lod_prepare_create(const struct lu_env *env, struct lod_object *lo,
665 struct lu_attr *attr, const struct lu_buf *buf,
667 int lod_use_defined_striping(const struct lu_env *, struct lod_object *,
668 const struct lu_buf *);
669 int lod_qos_parse_config(const struct lu_env *env, struct lod_object *lo,
670 const struct lu_buf *buf);
671 int lod_qos_prep_create(const struct lu_env *env, struct lod_object *lo,
672 struct lu_attr *attr, struct thandle *th,
674 __u16 lod_comp_entry_stripe_count(struct lod_object *lo,
675 struct lod_layout_component *entry,
677 __u16 lod_get_stripe_count(struct lod_device *lod, struct lod_object *lo,
678 __u16 stripe_count, bool overstriping);
679 void lod_qos_statfs_update(const struct lu_env *env, struct lod_device *lod);
682 int lod_procfs_init(struct lod_device *lod);
683 void lod_procfs_fini(struct lod_device *lod);
686 extern struct dt_object_operations lod_obj_ops;
687 extern struct lu_object_operations lod_lu_obj_ops;
689 int lod_load_lmv_shards(const struct lu_env *env, struct lod_object *lo,
690 struct lu_buf *buf, bool resize);
691 int lod_declare_striped_create(const struct lu_env *env, struct dt_object *dt,
692 struct lu_attr *attr,
693 const struct lu_buf *lovea, struct thandle *th);
694 int lod_striped_create(const struct lu_env *env, struct dt_object *dt,
695 struct lu_attr *attr, struct dt_object_format *dof,
697 int lod_alloc_foreign_lov(struct lod_object *lo, size_t size);
698 void lod_free_foreign_lov(struct lod_object *lo);
699 void lod_striping_free_nolock(const struct lu_env *env, struct lod_object *lo);
700 void lod_striping_free(const struct lu_env *env, struct lod_object *lo);
702 int lod_obj_for_each_stripe(const struct lu_env *env, struct lod_object *lo,
704 struct lod_obj_stripe_cb_data *data);
705 int lod_comp_copy_ost_lists(struct lod_layout_component *lod_comp,
706 struct lov_user_md_v3 *v3);
708 /* lod_sub_object.c */
709 struct thandle *lod_sub_get_thandle(const struct lu_env *env,
711 const struct dt_object *sub_obj,
712 bool *record_update);
713 int lod_sub_declare_create(const struct lu_env *env, struct dt_object *dt,
714 struct lu_attr *attr,
715 struct dt_allocation_hint *hint,
716 struct dt_object_format *dof, struct thandle *th);
717 int lod_sub_create(const struct lu_env *env, struct dt_object *dt,
718 struct lu_attr *attr, struct dt_allocation_hint *hint,
719 struct dt_object_format *dof, struct thandle *th);
720 int lod_sub_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
722 int lod_sub_ref_add(const struct lu_env *env, struct dt_object *dt,
724 int lod_sub_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
726 int lod_sub_ref_del(const struct lu_env *env, struct dt_object *dt,
728 int lod_sub_declare_destroy(const struct lu_env *env, struct dt_object *dt,
730 int lod_sub_destroy(const struct lu_env *env, struct dt_object *dt,
732 int lod_sub_declare_insert(const struct lu_env *env, struct dt_object *dt,
733 const struct dt_rec *rec, const struct dt_key *key,
735 int lod_sub_insert(const struct lu_env *env, struct dt_object *dt,
736 const struct dt_rec *rec, const struct dt_key *key,
738 int lod_sub_declare_delete(const struct lu_env *env, struct dt_object *dt,
739 const struct dt_key *key, struct thandle *th);
740 int lod_sub_delete(const struct lu_env *env, struct dt_object *dt,
741 const struct dt_key *name, struct thandle *th);
742 int lod_sub_declare_xattr_set(const struct lu_env *env, struct dt_object *dt,
743 const struct lu_buf *buf, const char *name,
744 int fl, struct thandle *th);
745 int lod_sub_xattr_set(const struct lu_env *env, struct dt_object *dt,
746 const struct lu_buf *buf, const char *name, int fl,
748 int lod_sub_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
749 const struct lu_attr *attr, struct thandle *th);
750 int lod_sub_attr_set(const struct lu_env *env, struct dt_object *dt,
751 const struct lu_attr *attr, struct thandle *th);
752 int lod_sub_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
753 const char *name, struct thandle *th);
754 int lod_sub_xattr_del(const struct lu_env *env, struct dt_object *dt,
755 const char *name, struct thandle *th);
756 int lod_sub_declare_write(const struct lu_env *env, struct dt_object *dt,
757 const struct lu_buf *buf, loff_t pos,
759 ssize_t lod_sub_write(const struct lu_env *env, struct dt_object *dt,
760 const struct lu_buf *buf, loff_t *pos,
762 int lod_sub_declare_punch(const struct lu_env *env, struct dt_object *dt,
763 __u64 start, __u64 end, struct thandle *th);
764 int lod_sub_punch(const struct lu_env *env, struct dt_object *dt,
765 __u64 start, __u64 end, struct thandle *th);
767 int lod_sub_prep_llog(const struct lu_env *env, struct lod_device *lod,
768 struct dt_device *dt, int index);