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 rhash_head pool_hash; /* access by poolname */
63 struct list_head pool_list;
64 struct rcu_head pool_rcu;
65 struct proc_dir_entry *pool_proc_entry;
66 struct obd_device *pool_lobd; /* owner */
69 int lod_pool_hash_init(struct rhashtable *tbl);
70 void lod_pool_hash_destroy(struct rhashtable *tbl);
72 #define pool_tgt_count(p) ((p)->pool_obds.op_count)
73 #define pool_tgt_array(p) ((p)->pool_obds.op_array)
74 #define pool_tgt_rw_sem(p) ((p)->pool_obds.op_rw_sem)
76 #define lod_tgt_desc lu_tgt_desc
77 #define lod_tgt_descs lu_tgt_descs
79 #define OST_TGT(lod, index) LTD_TGT(&lod->lod_ost_descs, index)
80 #define MDT_TGT(lod, index) LTD_TGT(&lod->lod_mdt_descs, index)
82 struct lod_avoid_guide {
83 /* ids of OSSs avoid guidance */
84 __u32 *lag_oss_avoid_array;
85 /* number of filled array items */
86 unsigned int lag_oaa_count;
87 /* number of allocated array items */
88 unsigned int lag_oaa_size;
89 /* bitmap of OSTs avoid guidance */
90 unsigned long *lag_ost_avoid_bitmap;
91 u32 lag_ost_avoid_size;
92 /* how many OSTs are available for alloc */
96 #define LOD_DOM_MIN_SIZE_KB (LOV_MIN_STRIPE_SIZE >> 10)
97 #define LOD_DOM_SFS_MAX_AGE 10
100 struct dt_device lod_dt_dev;
101 struct obd_export *lod_child_exp;
102 struct dt_device *lod_child;
103 struct lprocfs_stats *lod_stats;
104 spinlock_t lod_connects_lock;
106 unsigned int lod_recovery_completed:1,
109 lod_child_got_update_log:1;
111 /* protect ld_active_tgt_count, ltd_active and lod_md_root */
114 /* Description of OST */
115 struct lod_tgt_descs lod_ost_descs;
116 /* Description of MDT */
117 struct lod_tgt_descs lod_mdt_descs;
119 /* Recovery thread for lod_child */
120 struct task_struct *lod_child_recovery_task;
122 /* maximum EA size underlied OSD may have */
123 unsigned int lod_osd_max_easize;
124 /* maximum size of MDT stripe for Data-on-MDT files. */
125 unsigned int lod_dom_stripesize_max_kb;
126 /* current DOM default stripe size adjusted by threshold */
127 unsigned int lod_dom_stripesize_cur_kb;
128 /* Threshold at which DOM default stripe will start decreasing */
129 __u64 lod_dom_threshold_free_mb;
131 /* Local OSD statfs cache */
132 spinlock_t lod_lsfs_lock;
133 time64_t lod_lsfs_age;
134 __u64 lod_lsfs_total_mb;
135 __u64 lod_lsfs_free_mb;
139 struct rhashtable lod_pools_hash_body; /* used for key access */
140 struct list_head lod_pool_list; /* used for sequential access */
141 struct proc_dir_entry *lod_pool_proc_entry;
143 enum lustre_sec_part lod_sp_me;
145 struct proc_dir_entry *lod_symlink;
146 struct dentry *lod_debugfs;
148 /* ROOT object, used to fetch FS default striping */
149 struct lod_object *lod_md_root;
152 #define lod_ost_bitmap lod_ost_descs.ltd_tgt_bitmap
153 #define lod_ost_count lod_ost_descs.ltd_lov_desc.ld_tgt_count
154 #define lod_remote_mdt_count lod_mdt_descs.ltd_lmv_desc.ld_tgt_count
156 struct lod_layout_component {
157 struct lu_extent llc_extent;
160 __u32 llc_stripe_size;
162 __u16 llc_layout_gen;
163 __u16 llc_stripe_offset;
164 __u16 llc_stripe_count;
165 __u16 llc_stripes_allocated;
166 __u64 llc_timestamp; /* snapshot time */
168 /* ost list specified with LOV_USER_MAGIC_SPECIFIC lum */
169 struct lu_tgt_pool llc_ostlist;
170 struct dt_object **llc_stripe;
171 __u32 *llc_ost_indices;
174 struct lod_default_striping {
176 /* current layout component count */
177 __u16 lds_def_comp_cnt;
178 __u16 lds_def_mirror_cnt;
179 /* the largest comp count ever used */
180 __u32 lds_def_comp_size_cnt;
181 struct lod_layout_component *lds_def_comp_entries;
183 __u32 lds_dir_def_stripe_count;
184 __u32 lds_dir_def_stripe_offset;
185 __u32 lds_dir_def_hash_type;
186 /* default file striping flags (LOV) */
187 __u32 lds_def_striping_set:1,
188 lds_def_striping_is_composite:1,
189 /* default dir striping flags (LMV) */
190 lds_dir_def_striping_set:1;
193 struct lod_mirror_entry {
198 /* start,end index of this mirror in ldo_comp_entries */
204 /* common fields for both files and directories */
205 struct dt_object ldo_obj;
206 struct mutex ldo_layout_mutex;
208 /* file stripe (LOV) */
210 __u32 ldo_layout_gen;
211 /* Layout component count for a regular file.
212 * It equals to 1 for non-composite layout. */
214 /* Layout mirror count for a PFLR file.
215 * It's 0 for files with non-composite layout. */
216 __u16 ldo_mirror_count;
217 struct lod_mirror_entry *ldo_mirrors;
218 __u32 ldo_is_composite:1,
223 /* directory stripe (LMV) */
225 /* Slave stripe count for striped directory. */
226 __u16 ldo_dir_stripe_count;
227 /* How many stripes allocated for a striped directory */
228 __u16 ldo_dir_stripes_allocated;
229 __u32 ldo_dir_stripe_offset;
230 __u32 ldo_dir_hash_type;
231 __u32 ldo_dir_migrate_offset;
232 __u32 ldo_dir_migrate_hash;
233 __u32 ldo_dir_layout_version;
234 /* Is a slave stripe of striped directory? */
235 __u32 ldo_dir_slave_stripe:1,
237 /* the stripe has been loaded */
238 ldo_dir_stripe_loaded:1,
239 /* foreign directory */
242 * This default LMV is parent default LMV, which will be
243 * used in child creation, and it's not cached, so this
244 * field is invalid after create, make sure it's used by
245 * lod_dir_striping_create_internal() only.
247 struct lod_default_striping *ldo_def_striping;
252 /* foreign/raw format LOV */
253 char *ldo_foreign_lov;
254 size_t ldo_foreign_lov_size;
257 /* foreign/raw format LMV */
258 char *ldo_foreign_lmv;
259 size_t ldo_foreign_lmv_size;
262 /* file stripe (LOV) */
263 struct lod_layout_component *ldo_comp_entries;
264 /* slave stripes of striped directory (LMV) */
265 struct dt_object **ldo_stripe;
270 #define ldo_dir_split_offset ldo_dir_migrate_offset
271 #define ldo_dir_split_hash ldo_dir_migrate_hash
273 #define lod_foreach_mirror_comp(comp, lo, mirror_idx) \
274 for (comp = &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_start]; \
275 comp <= &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_end]; \
278 static inline bool lod_is_flr(const struct lod_object *lo)
280 if (!lo->ldo_is_composite)
283 return (lo->ldo_flr_state & LCM_FL_FLR_MASK) != LCM_FL_NONE;
286 static inline bool lod_is_splitting(const struct lod_object *lo)
288 return lmv_hash_is_splitting(lo->ldo_dir_hash_type);
291 static inline bool lod_is_migrating(const struct lod_object *lo)
293 return lmv_hash_is_migrating(lo->ldo_dir_hash_type);
296 static inline bool lod_is_layout_changing(const struct lod_object *lo)
298 return lmv_hash_is_layout_changing(lo->ldo_dir_hash_type);
301 static inline int lod_set_pool(char **pool, const char *new_pool)
305 if (*pool == new_pool)
309 len = strlen(*pool) + 1;
310 OBD_FREE(*pool, len);
313 if (new_pool != NULL) {
314 len = strlen(new_pool) + 1;
315 OBD_ALLOC(*pool, len);
318 strlcpy(*pool, new_pool, len);
323 static inline int lod_set_def_pool(struct lod_default_striping *lds,
324 int i, const char *new_pool)
326 return lod_set_pool(&lds->lds_def_comp_entries[i].llc_pool, new_pool);
329 static inline int lod_obj_set_pool(struct lod_object *lo, int i,
330 const char *new_pool)
332 return lod_set_pool(&lo->ldo_comp_entries[i].llc_pool, new_pool);
336 * Create new layout generation.
338 * The only requirement for layout generation is that it changes when
339 * the layout is modified, so a circular counter is sufficient for the
340 * low rate of layout modifications.
342 * Layout generation is also used to generate unique component ID.
343 * To detect generation overflow, we preserve the highest bit of the
344 * generation when it wrapped.
346 static inline void lod_obj_inc_layout_gen(struct lod_object *lo)
348 __u32 preserve = lo->ldo_layout_gen & ~LCME_ID_MASK;
349 lo->ldo_layout_gen++;
350 lo->ldo_layout_gen |= preserve;
351 /* Zero is not a valid generation */
352 if (unlikely((lo->ldo_layout_gen & LCME_ID_MASK) == 0))
353 lo->ldo_layout_gen++;
357 struct dt_object *lit_obj; /* object from the layer below */
358 /* stripe offset of iteration */
359 __u32 lit_stripe_index;
361 struct dt_it *lit_it; /* iterator from the layer below */
364 struct lod_thread_info {
365 /* per-thread buffer for LOV EA, may be vmalloc'd */
367 __u32 lti_ea_store_size;
368 /* per-thread buffer for LMV EA */
369 struct lu_buf lti_buf;
370 struct ost_id lti_ostid;
371 struct lu_fid lti_fid;
372 struct obd_statfs lti_osfs;
373 struct lu_attr lti_attr;
374 struct lod_it lti_it;
375 struct ldlm_res_id lti_res_id;
376 /* used to hold lu_dirent, sizeof(struct lu_dirent) + NAME_MAX */
377 char lti_key[sizeof(struct lu_dirent) +
379 struct dt_object_format lti_format;
380 struct lu_name lti_name;
381 struct lu_buf lti_linkea_buf;
382 struct dt_insert_rec lti_dt_rec;
383 struct llog_catid lti_cid;
384 struct llog_cookie lti_cookie;
385 struct lustre_cfg lti_lustre_cfg;
386 /* used to store parent default striping in create */
387 struct lod_default_striping lti_def_striping;
388 struct filter_fid lti_ff;
390 size_t lti_comp_size;
392 struct lu_attr lti_layout_attr;
393 /* object allocation avoid guide info */
394 struct lod_avoid_guide lti_avoid;
395 union lmv_mds_md lti_lmv;
396 struct dt_allocation_hint lti_ah;
399 extern const struct lu_device_operations lod_lu_ops;
401 static inline int lu_device_is_lod(struct lu_device *d)
403 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &lod_lu_ops);
406 static inline struct lod_device* lu2lod_dev(struct lu_device *d)
408 LASSERT(lu_device_is_lod(d));
409 return container_of_safe(d, struct lod_device, lod_dt_dev.dd_lu_dev);
412 static inline struct lu_device *lod2lu_dev(struct lod_device *d)
414 return &d->lod_dt_dev.dd_lu_dev;
417 static inline struct obd_device *lod2obd(struct lod_device *d)
419 return d->lod_dt_dev.dd_lu_dev.ld_obd;
422 static inline struct lod_device *dt2lod_dev(struct dt_device *d)
424 LASSERT(lu_device_is_lod(&d->dd_lu_dev));
425 return container_of(d, struct lod_device, lod_dt_dev);
428 static inline struct lod_object *lu2lod_obj(struct lu_object *o)
430 LASSERT(ergo(o != NULL, lu_device_is_lod(o->lo_dev)));
431 return container_of_safe(o, struct lod_object, ldo_obj.do_lu);
434 static inline struct lu_object *lod2lu_obj(struct lod_object *obj)
436 return &obj->ldo_obj.do_lu;
439 static inline const struct lu_fid *lod_object_fid(struct lod_object *obj)
441 return lu_object_fid(lod2lu_obj(obj));
444 static inline struct lod_object *lod_obj(const struct lu_object *o)
446 LASSERT(lu_device_is_lod(o->lo_dev));
447 return container_of(o, struct lod_object, ldo_obj.do_lu);
450 static inline struct lod_object *lod_dt_obj(const struct dt_object *d)
452 return lod_obj(&d->do_lu);
455 static inline struct dt_object* lod_object_child(struct lod_object *o)
457 return container_of(lu_object_next(lod2lu_obj(o)),
458 struct dt_object, do_lu);
461 static inline bool lod_obj_is_striped(struct dt_object *dt)
463 struct lod_object *lo = lod_dt_obj(dt);
466 if (!dt_object_exists(dt_object_child(dt)))
469 if (S_ISDIR(dt->do_lu.lo_header->loh_attr))
470 return lo->ldo_dir_stripe_count != 0;
472 if (lo->ldo_is_foreign)
475 for (i = 0; i < lo->ldo_comp_cnt; i++) {
476 if (lo->ldo_comp_entries[i].llc_stripe == NULL)
478 LASSERT(lo->ldo_comp_entries[i].llc_stripe_count > 0);
484 extern struct lu_context_key lod_thread_key;
486 static inline struct lod_thread_info *lod_env_info(const struct lu_env *env)
488 struct lod_thread_info *info;
489 info = lu_context_key_get(&env->le_ctx, &lod_thread_key);
494 static inline struct lu_name *
495 lod_name_get(const struct lu_env *env, const void *area, int len)
497 struct lu_name *lname;
499 lname = &lod_env_info(env)->lti_name;
500 lname->ln_name = area;
501 lname->ln_namelen = len;
505 static inline struct lod_default_striping *
506 lod_lds_buf_get(const struct lu_env *env)
508 struct lod_thread_info *info = lod_env_info(env);
510 info->lti_def_striping.lds_def_striping_set = 0;
511 info->lti_def_striping.lds_dir_def_striping_set = 0;
512 return &info->lti_def_striping;
515 static inline void lod_layout_get_pool(struct lod_layout_component *entries,
516 int count, char *pool, int len)
520 for (i = 0; i < count; i++) {
521 if (entries[i].llc_pool != NULL) {
522 strlcpy(pool, entries[i].llc_pool, len);
528 #define lod_foreach_mdt(lod, mdt) ltd_foreach_tgt(&(lod)->lod_mdt_descs, mdt)
529 #define lod_foreach_ost(lod, ost) ltd_foreach_tgt(&(lod)->lod_ost_descs, ost)
532 extern struct kmem_cache *lod_object_kmem;
533 int lod_fld_lookup(const struct lu_env *env, struct lod_device *lod,
534 const struct lu_fid *fid, __u32 *tgt, int *flags);
535 int lod_sub_init_llog(const struct lu_env *env, struct lod_device *lod,
536 struct dt_device *dt);
537 void lod_sub_fini_llog(const struct lu_env *env,
538 struct dt_device *dt, struct task_struct **taskp);
539 int lodname2mdt_index(char *lodname, __u32 *mdt_index);
540 extern void target_recovery_fini(struct obd_device *obd);
543 void lod_getref(struct lod_tgt_descs *ltd);
544 void lod_putref(struct lod_device *lod, struct lod_tgt_descs *ltd);
545 int lod_add_device(const struct lu_env *env, struct lod_device *lod,
546 char *osp, unsigned index, unsigned gen, int mdt_index,
547 char *type, int active);
548 int lod_del_device(const struct lu_env *env, struct lod_device *lod,
549 struct lod_tgt_descs *ltd, char *osp, unsigned int idx,
551 int lod_fini_tgt(const struct lu_env *env, struct lod_device *lod,
552 struct lod_tgt_descs *ltd);
553 int lod_striping_load(const struct lu_env *env, struct lod_object *lo);
554 int lod_striping_reload(const struct lu_env *env, struct lod_object *lo,
555 const struct lu_buf *buf);
556 void lod_dom_stripesize_recalc(struct lod_device *d);
558 int lod_get_ea(const struct lu_env *env, struct lod_object *lo,
561 lod_get_lov_ea(const struct lu_env *env, struct lod_object *lo)
563 return lod_get_ea(env, lo, XATTR_NAME_LOV);
567 lod_get_lmv_ea(const struct lu_env *env, struct lod_object *lo)
569 return lod_get_ea(env, lo, XATTR_NAME_LMV);
573 lod_get_default_lmv_ea(const struct lu_env *env, struct lod_object *lo)
575 return lod_get_ea(env, lo, XATTR_NAME_DEFAULT_LMV);
579 lod_comp_set_init(struct lod_layout_component *entry)
581 entry->llc_flags |= LCME_FL_INIT;
585 lod_comp_unset_init(struct lod_layout_component *entry)
587 entry->llc_flags &= ~LCME_FL_INIT;
591 lod_comp_inited(const struct lod_layout_component *entry)
593 return entry->llc_flags & LCME_FL_INIT;
597 * For a PFL file, some of its component could be un-instantiated, so
598 * that their lov_ost_data_v1 array is not needed, we'd use this function
599 * to reduce the LOVEA buffer size.
601 * Note: if llc_ostlist contains value, we'd need lov_ost_data_v1 array to
602 * save the specified OST index list.
605 lod_comp_shrink_stripe_count(struct lod_layout_component *lod_comp,
609 * Need one lov_ost_data_v1 to store invalid ost_idx, please refer to
610 * lod_parse_striping()
612 if (!lod_comp_inited(lod_comp) && lod_comp->llc_ostlist.op_count == 0)
616 void lod_fix_desc(struct lov_desc *desc);
617 void lod_fix_desc_qos_maxage(__u32 *val);
618 void lod_fix_desc_pattern(__u32 *val);
619 void lod_fix_desc_stripe_count(__u32 *val);
620 void lod_fix_desc_stripe_size(__u64 *val);
621 void lod_fix_lmv_desc_pattern(__u32 *val);
622 int lod_pools_init(struct lod_device *m, struct lustre_cfg *cfg);
623 int lod_pools_fini(struct lod_device *m);
624 int lod_parse_striping(const struct lu_env *env, struct lod_object *mo,
625 const struct lu_buf *buf);
626 int lod_parse_dir_striping(const struct lu_env *env, struct lod_object *lo,
627 const struct lu_buf *buf);
628 int lod_initialize_objects(const struct lu_env *env, struct lod_object *mo,
629 struct lov_ost_data_v1 *objs, int index);
630 int lod_verify_striping(const struct lu_env *env, struct lod_device *d,
631 struct lod_object *lo, const struct lu_buf *buf,
633 int lod_generate_lovea(const struct lu_env *env, struct lod_object *lo,
634 struct lov_mds_md *lmm, int *lmm_size, bool is_dir);
635 int lod_ea_store_resize(struct lod_thread_info *info, size_t size);
636 int lod_def_striping_comp_resize(struct lod_default_striping *lds, __u16 count);
637 void lod_free_def_comp_entries(struct lod_default_striping *lds);
638 void lod_free_comp_entries(struct lod_object *lo);
639 int lod_alloc_comp_entries(struct lod_object *lo, int mirror_cnt, int comp_cnt);
640 int lod_fill_mirrors(struct lod_object *lo);
643 struct pool_desc *lod_find_pool(struct lod_device *lod, char *poolname);
644 void lod_pool_putref(struct pool_desc *pool);
645 int lod_pool_del(struct obd_device *obd, char *poolname);
646 int lod_check_index_in_pool(__u32 idx, struct pool_desc *pool);
647 int lod_pool_new(struct obd_device *obd, char *poolname);
648 int lod_pool_add(struct obd_device *obd, char *poolname, char *ostname);
649 int lod_pool_remove(struct obd_device *obd, char *poolname, char *ostname);
651 struct lod_obj_stripe_cb_data;
652 typedef int (*lod_obj_stripe_cb_t)(const struct lu_env *env,
653 struct lod_object *lo, struct dt_object *dt,
655 int comp_idx, int stripe_idx,
656 struct lod_obj_stripe_cb_data *data);
657 typedef bool (*lod_obj_comp_skip_cb_t)(const struct lu_env *env,
658 struct lod_object *lo, int comp_idx,
659 struct lod_obj_stripe_cb_data *data);
660 typedef int (*lod_obj_comp_cb_t)(const struct lu_env *env,
661 struct lod_object *lo, int comp_idx,
662 struct lod_obj_stripe_cb_data *data);
663 struct lod_obj_stripe_cb_data {
665 const struct lu_attr *locd_attr;
667 const struct lu_buf *locd_buf;
669 lod_obj_stripe_cb_t locd_stripe_cb;
670 lod_obj_comp_skip_cb_t locd_comp_skip_cb;
671 lod_obj_comp_cb_t locd_comp_cb;
676 int lod_mdt_alloc_qos(const struct lu_env *env, struct lod_object *lo,
677 struct dt_object **stripes, u32 stripe_idx,
679 int lod_mdt_alloc_rr(const struct lu_env *env, struct lod_object *lo,
680 struct dt_object **stripes, u32 stripe_idx,
682 int lod_prepare_create(const struct lu_env *env, struct lod_object *lo,
683 struct lu_attr *attr, const struct lu_buf *buf,
685 int lod_use_defined_striping(const struct lu_env *, struct lod_object *,
686 const struct lu_buf *);
687 int lod_qos_parse_config(const struct lu_env *env, struct lod_object *lo,
688 const struct lu_buf *buf);
689 int lod_qos_prep_create(const struct lu_env *env, struct lod_object *lo,
690 struct lu_attr *attr, struct thandle *th,
691 int comp_idx, __u64 reserve);
692 __u16 lod_comp_entry_stripe_count(struct lod_object *lo,
693 int comp_idx, bool is_dir);
694 __u16 lod_get_stripe_count(struct lod_device *lod, struct lod_object *lo,
695 int comp_idx, __u16 stripe_count, bool overstriping);
696 void lod_qos_statfs_update(const struct lu_env *env, struct lod_device *lod,
697 struct lu_tgt_descs *ltd);
700 int lod_procfs_init(struct lod_device *lod);
701 void lod_procfs_fini(struct lod_device *lod);
704 extern struct dt_object_operations lod_obj_ops;
705 extern struct lu_object_operations lod_lu_obj_ops;
707 int lod_load_lmv_shards(const struct lu_env *env, struct lod_object *lo,
708 struct lu_buf *buf, bool resize);
709 int lod_declare_striped_create(const struct lu_env *env, struct dt_object *dt,
710 struct lu_attr *attr,
711 const struct lu_buf *lovea, struct thandle *th);
712 int lod_striped_create(const struct lu_env *env, struct dt_object *dt,
713 struct lu_attr *attr, struct dt_object_format *dof,
715 int lod_alloc_foreign_lov(struct lod_object *lo, size_t size);
716 void lod_free_foreign_lov(struct lod_object *lo);
717 void lod_striping_free_nolock(const struct lu_env *env, struct lod_object *lo);
718 void lod_striping_free(const struct lu_env *env, struct lod_object *lo);
720 int lod_obj_for_each_stripe(const struct lu_env *env, struct lod_object *lo,
722 struct lod_obj_stripe_cb_data *data);
723 int lod_comp_copy_ost_lists(struct lod_layout_component *lod_comp,
724 struct lov_user_md_v3 *v3);
725 void lod_adjust_stripe_size(struct lod_layout_component *comp,
726 __u32 def_stripe_size);
728 /* lod_sub_object.c */
729 struct thandle *lod_sub_get_thandle(const struct lu_env *env,
731 const struct dt_object *sub_obj,
732 bool *record_update);
733 int lod_sub_declare_create(const struct lu_env *env, struct dt_object *dt,
734 struct lu_attr *attr,
735 struct dt_allocation_hint *hint,
736 struct dt_object_format *dof, struct thandle *th);
737 int lod_sub_create(const struct lu_env *env, struct dt_object *dt,
738 struct lu_attr *attr, struct dt_allocation_hint *hint,
739 struct dt_object_format *dof, struct thandle *th);
740 int lod_sub_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
742 int lod_sub_ref_add(const struct lu_env *env, struct dt_object *dt,
744 int lod_sub_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
746 int lod_sub_ref_del(const struct lu_env *env, struct dt_object *dt,
748 int lod_sub_declare_destroy(const struct lu_env *env, struct dt_object *dt,
750 int lod_sub_destroy(const struct lu_env *env, struct dt_object *dt,
752 int lod_sub_declare_insert(const struct lu_env *env, struct dt_object *dt,
753 const struct dt_rec *rec, const struct dt_key *key,
755 int lod_sub_insert(const struct lu_env *env, struct dt_object *dt,
756 const struct dt_rec *rec, const struct dt_key *key,
758 int lod_sub_declare_delete(const struct lu_env *env, struct dt_object *dt,
759 const struct dt_key *key, struct thandle *th);
760 int lod_sub_delete(const struct lu_env *env, struct dt_object *dt,
761 const struct dt_key *name, struct thandle *th);
762 int lod_sub_declare_xattr_set(const struct lu_env *env, struct dt_object *dt,
763 const struct lu_buf *buf, const char *name,
764 int fl, struct thandle *th);
765 int lod_sub_xattr_set(const struct lu_env *env, struct dt_object *dt,
766 const struct lu_buf *buf, const char *name, int fl,
768 int lod_sub_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
769 const struct lu_attr *attr, struct thandle *th);
770 int lod_sub_attr_set(const struct lu_env *env, struct dt_object *dt,
771 const struct lu_attr *attr, struct thandle *th);
772 int lod_sub_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
773 const char *name, struct thandle *th);
774 int lod_sub_xattr_del(const struct lu_env *env, struct dt_object *dt,
775 const char *name, struct thandle *th);
776 int lod_sub_declare_write(const struct lu_env *env, struct dt_object *dt,
777 const struct lu_buf *buf, loff_t pos,
779 ssize_t lod_sub_write(const struct lu_env *env, struct dt_object *dt,
780 const struct lu_buf *buf, loff_t *pos,
782 int lod_sub_declare_punch(const struct lu_env *env, struct dt_object *dt,
783 __u64 start, __u64 end, struct thandle *th);
784 int lod_sub_punch(const struct lu_env *env, struct dt_object *dt,
785 __u64 start, __u64 end, struct thandle *th);
787 int lod_sub_prep_llog(const struct lu_env *env, struct lod_device *lod,
788 struct dt_device *dt, int index);