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 struct cfs_bitmap *lag_ost_avoid_bitmap;
91 /* how many OSTs are available for alloc */
95 #define LOD_DOM_MIN_SIZE_KB (LOV_MIN_STRIPE_SIZE >> 10)
96 #define LOD_DOM_SFS_MAX_AGE 10
99 struct dt_device lod_dt_dev;
100 struct obd_export *lod_child_exp;
101 struct dt_device *lod_child;
102 struct lprocfs_stats *lod_stats;
103 spinlock_t lod_connects_lock;
105 unsigned int lod_recovery_completed:1,
108 lod_child_got_update_log:1;
110 /* protect ld_active_tgt_count, ltd_active and lod_md_root */
113 /* Description of OST */
114 struct lod_tgt_descs lod_ost_descs;
115 /* Description of MDT */
116 struct lod_tgt_descs lod_mdt_descs;
118 /* Recovery thread for lod_child */
119 struct task_struct *lod_child_recovery_task;
121 /* maximum EA size underlied OSD may have */
122 unsigned int lod_osd_max_easize;
123 /* maximum size of MDT stripe for Data-on-MDT files. */
124 unsigned int lod_dom_stripesize_max_kb;
125 /* current DOM default stripe size adjusted by threshold */
126 unsigned int lod_dom_stripesize_cur_kb;
127 /* Threshold at which DOM default stripe will start decreasing */
128 __u64 lod_dom_threshold_free_mb;
130 /* Local OSD statfs cache */
131 spinlock_t lod_lsfs_lock;
132 time64_t lod_lsfs_age;
133 __u64 lod_lsfs_total_mb;
134 __u64 lod_lsfs_free_mb;
138 struct rhashtable lod_pools_hash_body; /* used for key access */
139 struct list_head lod_pool_list; /* used for sequential access */
140 struct proc_dir_entry *lod_pool_proc_entry;
142 enum lustre_sec_part lod_sp_me;
144 struct proc_dir_entry *lod_symlink;
145 struct dentry *lod_debugfs;
147 /* ROOT object, used to fetch FS default striping */
148 struct lod_object *lod_md_root;
151 #define lod_ost_bitmap lod_ost_descs.ltd_tgt_bitmap
152 #define lod_ost_count lod_ost_descs.ltd_lov_desc.ld_tgt_count
153 #define lod_remote_mdt_count lod_mdt_descs.ltd_lmv_desc.ld_tgt_count
155 struct lod_layout_component {
156 struct lu_extent llc_extent;
159 __u32 llc_stripe_size;
161 __u16 llc_layout_gen;
162 __u16 llc_stripe_offset;
163 __u16 llc_stripe_count;
164 __u16 llc_stripes_allocated;
165 __u64 llc_timestamp; /* snapshot time */
167 /* ost list specified with LOV_USER_MAGIC_SPECIFIC lum */
168 struct lu_tgt_pool llc_ostlist;
169 struct dt_object **llc_stripe;
170 __u32 *llc_ost_indices;
173 struct lod_default_striping {
175 /* current layout component count */
176 __u16 lds_def_comp_cnt;
177 __u16 lds_def_mirror_cnt;
178 /* the largest comp count ever used */
179 __u32 lds_def_comp_size_cnt;
180 struct lod_layout_component *lds_def_comp_entries;
182 __u32 lds_dir_def_stripe_count;
183 __u32 lds_dir_def_stripe_offset;
184 __u32 lds_dir_def_hash_type;
185 /* default file striping flags (LOV) */
186 __u32 lds_def_striping_set:1,
187 lds_def_striping_is_composite:1,
188 /* default dir striping flags (LMV) */
189 lds_dir_def_striping_set:1;
192 struct lod_mirror_entry {
197 /* start,end index of this mirror in ldo_comp_entries */
203 /* common fields for both files and directories */
204 struct dt_object ldo_obj;
205 struct mutex ldo_layout_mutex;
207 /* file stripe (LOV) */
209 __u32 ldo_layout_gen;
210 /* Layout component count for a regular file.
211 * It equals to 1 for non-composite layout. */
213 /* Layout mirror count for a PFLR file.
214 * It's 0 for files with non-composite layout. */
215 __u16 ldo_mirror_count;
216 struct lod_mirror_entry *ldo_mirrors;
217 __u32 ldo_is_composite:1,
222 /* directory stripe (LMV) */
224 /* Slave stripe count for striped directory. */
225 __u16 ldo_dir_stripe_count;
226 /* How many stripes allocated for a striped directory */
227 __u16 ldo_dir_stripes_allocated;
228 __u32 ldo_dir_stripe_offset;
229 __u32 ldo_dir_hash_type;
230 __u32 ldo_dir_migrate_offset;
231 __u32 ldo_dir_migrate_hash;
232 __u32 ldo_dir_layout_version;
233 /* Is a slave stripe of striped directory? */
234 __u32 ldo_dir_slave_stripe:1,
236 /* the stripe has been loaded */
237 ldo_dir_stripe_loaded:1,
238 /* foreign directory */
241 * This default LMV is parent default LMV, which will be
242 * used in child creation, and it's not cached, so this
243 * field is invalid after create, make sure it's used by
244 * lod_dir_striping_create_internal() only.
246 struct lod_default_striping *ldo_def_striping;
251 /* foreign/raw format LOV */
252 char *ldo_foreign_lov;
253 size_t ldo_foreign_lov_size;
256 /* foreign/raw format LMV */
257 char *ldo_foreign_lmv;
258 size_t ldo_foreign_lmv_size;
261 /* file stripe (LOV) */
262 struct lod_layout_component *ldo_comp_entries;
263 /* slave stripes of striped directory (LMV) */
264 struct dt_object **ldo_stripe;
269 #define lod_foreach_mirror_comp(comp, lo, mirror_idx) \
270 for (comp = &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_start]; \
271 comp <= &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_end]; \
274 static inline bool lod_is_flr(const struct lod_object *lo)
276 if (!lo->ldo_is_composite)
279 return (lo->ldo_flr_state & LCM_FL_FLR_MASK) != LCM_FL_NONE;
282 static inline int lod_set_pool(char **pool, const char *new_pool)
286 if (*pool == new_pool)
290 len = strlen(*pool) + 1;
291 OBD_FREE(*pool, len);
294 if (new_pool != NULL) {
295 len = strlen(new_pool) + 1;
296 OBD_ALLOC(*pool, len);
299 strlcpy(*pool, new_pool, len);
304 static inline int lod_set_def_pool(struct lod_default_striping *lds,
305 int i, const char *new_pool)
307 return lod_set_pool(&lds->lds_def_comp_entries[i].llc_pool, new_pool);
310 static inline int lod_obj_set_pool(struct lod_object *lo, int i,
311 const char *new_pool)
313 return lod_set_pool(&lo->ldo_comp_entries[i].llc_pool, new_pool);
317 * Create new layout generation.
319 * The only requirement for layout generation is that it changes when
320 * the layout is modified, so a circular counter is sufficient for the
321 * low rate of layout modifications.
323 * Layout generation is also used to generate unique component ID.
324 * To detect generation overflow, we preserve the highest bit of the
325 * generation when it wrapped.
327 static inline void lod_obj_inc_layout_gen(struct lod_object *lo)
329 __u32 preserve = lo->ldo_layout_gen & ~LCME_ID_MASK;
330 lo->ldo_layout_gen++;
331 lo->ldo_layout_gen |= preserve;
332 /* Zero is not a valid generation */
333 if (unlikely((lo->ldo_layout_gen & LCME_ID_MASK) == 0))
334 lo->ldo_layout_gen++;
338 struct dt_object *lit_obj; /* object from the layer below */
339 /* stripe offset of iteration */
340 __u32 lit_stripe_index;
342 struct dt_it *lit_it; /* iterator from the layer below */
345 struct lod_thread_info {
346 /* per-thread buffer for LOV EA, may be vmalloc'd */
348 __u32 lti_ea_store_size;
349 /* per-thread buffer for LMV EA */
350 struct lu_buf lti_buf;
351 struct ost_id lti_ostid;
352 struct lu_fid lti_fid;
353 struct obd_statfs lti_osfs;
354 struct lu_attr lti_attr;
355 struct lod_it lti_it;
356 struct ldlm_res_id lti_res_id;
357 /* used to hold lu_dirent, sizeof(struct lu_dirent) + NAME_MAX */
358 char lti_key[sizeof(struct lu_dirent) +
360 struct dt_object_format lti_format;
361 struct lu_name lti_name;
362 struct lu_buf lti_linkea_buf;
363 struct dt_insert_rec lti_dt_rec;
364 struct llog_catid lti_cid;
365 struct llog_cookie lti_cookie;
366 struct lustre_cfg lti_lustre_cfg;
367 /* used to store parent default striping in create */
368 struct lod_default_striping lti_def_striping;
369 struct filter_fid lti_ff;
371 size_t lti_comp_size;
373 struct lu_attr lti_layout_attr;
374 /* object allocation avoid guide info */
375 struct lod_avoid_guide lti_avoid;
376 union lmv_mds_md lti_lmv;
379 extern const struct lu_device_operations lod_lu_ops;
381 static inline int lu_device_is_lod(struct lu_device *d)
383 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &lod_lu_ops);
386 static inline struct lod_device* lu2lod_dev(struct lu_device *d)
388 LASSERT(lu_device_is_lod(d));
389 return container_of0(d, struct lod_device, lod_dt_dev.dd_lu_dev);
392 static inline struct lu_device *lod2lu_dev(struct lod_device *d)
394 return &d->lod_dt_dev.dd_lu_dev;
397 static inline struct obd_device *lod2obd(struct lod_device *d)
399 return d->lod_dt_dev.dd_lu_dev.ld_obd;
402 static inline struct lod_device *dt2lod_dev(struct dt_device *d)
404 LASSERT(lu_device_is_lod(&d->dd_lu_dev));
405 return container_of0(d, struct lod_device, lod_dt_dev);
408 static inline struct lod_object *lu2lod_obj(struct lu_object *o)
410 LASSERT(ergo(o != NULL, lu_device_is_lod(o->lo_dev)));
411 return container_of0(o, struct lod_object, ldo_obj.do_lu);
414 static inline struct lu_object *lod2lu_obj(struct lod_object *obj)
416 return &obj->ldo_obj.do_lu;
419 static inline const struct lu_fid *lod_object_fid(struct lod_object *obj)
421 return lu_object_fid(lod2lu_obj(obj));
424 static inline struct lod_object *lod_obj(const struct lu_object *o)
426 LASSERT(lu_device_is_lod(o->lo_dev));
427 return container_of0(o, struct lod_object, ldo_obj.do_lu);
430 static inline struct lod_object *lod_dt_obj(const struct dt_object *d)
432 return lod_obj(&d->do_lu);
435 static inline struct dt_object* lod_object_child(struct lod_object *o)
437 return container_of0(lu_object_next(lod2lu_obj(o)),
438 struct dt_object, do_lu);
441 static inline bool lod_obj_is_striped(struct dt_object *dt)
443 struct lod_object *lo = lod_dt_obj(dt);
446 if (!dt_object_exists(dt_object_child(dt)))
449 if (S_ISDIR(dt->do_lu.lo_header->loh_attr))
450 return lo->ldo_dir_stripe_count != 0;
452 if (lo->ldo_is_foreign)
455 for (i = 0; i < lo->ldo_comp_cnt; i++) {
456 if (lo->ldo_comp_entries[i].llc_stripe == NULL)
458 LASSERT(lo->ldo_comp_entries[i].llc_stripe_count > 0);
464 extern struct lu_context_key lod_thread_key;
466 static inline struct lod_thread_info *lod_env_info(const struct lu_env *env)
468 struct lod_thread_info *info;
469 info = lu_context_key_get(&env->le_ctx, &lod_thread_key);
474 static inline struct lu_name *
475 lod_name_get(const struct lu_env *env, const void *area, int len)
477 struct lu_name *lname;
479 lname = &lod_env_info(env)->lti_name;
480 lname->ln_name = area;
481 lname->ln_namelen = len;
485 static inline struct lod_default_striping *
486 lod_lds_buf_get(const struct lu_env *env)
488 struct lod_thread_info *info = lod_env_info(env);
490 info->lti_def_striping.lds_def_striping_set = 0;
491 info->lti_def_striping.lds_dir_def_striping_set = 0;
492 return &info->lti_def_striping;
495 static inline void lod_layout_get_pool(struct lod_layout_component *entries,
496 int count, char *pool, int len)
500 for (i = 0; i < count; i++) {
501 if (entries[i].llc_pool != NULL) {
502 strlcpy(pool, entries[i].llc_pool, len);
508 #define lod_foreach_mdt(lod, mdt) ltd_foreach_tgt(&(lod)->lod_mdt_descs, mdt)
509 #define lod_foreach_ost(lod, ost) ltd_foreach_tgt(&(lod)->lod_ost_descs, ost)
512 extern struct kmem_cache *lod_object_kmem;
513 int lod_fld_lookup(const struct lu_env *env, struct lod_device *lod,
514 const struct lu_fid *fid, __u32 *tgt, int *flags);
515 int lod_sub_init_llog(const struct lu_env *env, struct lod_device *lod,
516 struct dt_device *dt);
517 void lod_sub_fini_llog(const struct lu_env *env,
518 struct dt_device *dt, struct task_struct **taskp);
519 int lodname2mdt_index(char *lodname, __u32 *mdt_index);
520 extern void target_recovery_fini(struct obd_device *obd);
523 void lod_getref(struct lod_tgt_descs *ltd);
524 void lod_putref(struct lod_device *lod, struct lod_tgt_descs *ltd);
525 int lod_add_device(const struct lu_env *env, struct lod_device *lod,
526 char *osp, unsigned index, unsigned gen, int mdt_index,
527 char *type, int active);
528 int lod_del_device(const struct lu_env *env, struct lod_device *lod,
529 struct lod_tgt_descs *ltd, char *osp, unsigned int idx,
531 int lod_fini_tgt(const struct lu_env *env, struct lod_device *lod,
532 struct lod_tgt_descs *ltd);
533 int lod_striping_load(const struct lu_env *env, struct lod_object *lo);
534 int lod_striping_reload(const struct lu_env *env, struct lod_object *lo,
535 const struct lu_buf *buf);
536 void lod_dom_stripesize_recalc(struct lod_device *d);
538 int lod_get_ea(const struct lu_env *env, struct lod_object *lo,
541 lod_get_lov_ea(const struct lu_env *env, struct lod_object *lo)
543 return lod_get_ea(env, lo, XATTR_NAME_LOV);
547 lod_get_lmv_ea(const struct lu_env *env, struct lod_object *lo)
549 return lod_get_ea(env, lo, XATTR_NAME_LMV);
553 lod_get_default_lmv_ea(const struct lu_env *env, struct lod_object *lo)
555 return lod_get_ea(env, lo, XATTR_NAME_DEFAULT_LMV);
559 lod_comp_set_init(struct lod_layout_component *entry)
561 entry->llc_flags |= LCME_FL_INIT;
565 lod_comp_unset_init(struct lod_layout_component *entry)
567 entry->llc_flags &= ~LCME_FL_INIT;
571 lod_comp_inited(const struct lod_layout_component *entry)
573 return entry->llc_flags & LCME_FL_INIT;
577 * For a PFL file, some of its component could be un-instantiated, so
578 * that their lov_ost_data_v1 array is not needed, we'd use this function
579 * to reduce the LOVEA buffer size.
581 * Note: if llc_ostlist contains value, we'd need lov_ost_data_v1 array to
582 * save the specified OST index list.
585 lod_comp_shrink_stripe_count(struct lod_layout_component *lod_comp,
589 * Need one lov_ost_data_v1 to store invalid ost_idx, please refer to
590 * lod_parse_striping()
592 if (!lod_comp_inited(lod_comp) && lod_comp->llc_ostlist.op_count == 0)
596 void lod_fix_desc(struct lov_desc *desc);
597 void lod_fix_desc_qos_maxage(__u32 *val);
598 void lod_fix_desc_pattern(__u32 *val);
599 void lod_fix_desc_stripe_count(__u32 *val);
600 void lod_fix_desc_stripe_size(__u64 *val);
601 void lod_fix_lmv_desc_pattern(__u32 *val);
602 int lod_pools_init(struct lod_device *m, struct lustre_cfg *cfg);
603 int lod_pools_fini(struct lod_device *m);
604 int lod_parse_striping(const struct lu_env *env, struct lod_object *mo,
605 const struct lu_buf *buf);
606 int lod_parse_dir_striping(const struct lu_env *env, struct lod_object *lo,
607 const struct lu_buf *buf);
608 int lod_initialize_objects(const struct lu_env *env, struct lod_object *mo,
609 struct lov_ost_data_v1 *objs, int index);
610 int lod_verify_striping(const struct lu_env *env, struct lod_device *d,
611 struct lod_object *lo, const struct lu_buf *buf,
613 int lod_generate_lovea(const struct lu_env *env, struct lod_object *lo,
614 struct lov_mds_md *lmm, int *lmm_size, bool is_dir);
615 int lod_ea_store_resize(struct lod_thread_info *info, size_t size);
616 int lod_def_striping_comp_resize(struct lod_default_striping *lds, __u16 count);
617 void lod_free_def_comp_entries(struct lod_default_striping *lds);
618 void lod_free_comp_entries(struct lod_object *lo);
619 int lod_alloc_comp_entries(struct lod_object *lo, int mirror_cnt, int comp_cnt);
620 int lod_fill_mirrors(struct lod_object *lo);
623 struct pool_desc *lod_find_pool(struct lod_device *lod, char *poolname);
624 void lod_pool_putref(struct pool_desc *pool);
625 int lod_pool_del(struct obd_device *obd, char *poolname);
626 int lod_check_index_in_pool(__u32 idx, struct pool_desc *pool);
627 int lod_pool_new(struct obd_device *obd, char *poolname);
628 int lod_pool_add(struct obd_device *obd, char *poolname, char *ostname);
629 int lod_pool_remove(struct obd_device *obd, char *poolname, char *ostname);
631 struct lod_obj_stripe_cb_data;
632 typedef int (*lod_obj_stripe_cb_t)(const struct lu_env *env,
633 struct lod_object *lo, struct dt_object *dt,
635 int comp_idx, int stripe_idx,
636 struct lod_obj_stripe_cb_data *data);
637 typedef bool (*lod_obj_comp_skip_cb_t)(const struct lu_env *env,
638 struct lod_object *lo, int comp_idx,
639 struct lod_obj_stripe_cb_data *data);
640 typedef int (*lod_obj_comp_cb_t)(const struct lu_env *env,
641 struct lod_object *lo, int comp_idx,
642 struct lod_obj_stripe_cb_data *data);
643 struct lod_obj_stripe_cb_data {
645 const struct lu_attr *locd_attr;
647 const struct lu_buf *locd_buf;
649 lod_obj_stripe_cb_t locd_stripe_cb;
650 lod_obj_comp_skip_cb_t locd_comp_skip_cb;
651 lod_obj_comp_cb_t locd_comp_cb;
656 int lod_mdt_alloc_qos(const struct lu_env *env, struct lod_object *lo,
657 struct dt_object **stripes, u32 stripe_idx,
659 int lod_mdt_alloc_rr(const struct lu_env *env, struct lod_object *lo,
660 struct dt_object **stripes, u32 stripe_idx,
662 int lod_prepare_create(const struct lu_env *env, struct lod_object *lo,
663 struct lu_attr *attr, const struct lu_buf *buf,
665 int lod_use_defined_striping(const struct lu_env *, struct lod_object *,
666 const struct lu_buf *);
667 int lod_qos_parse_config(const struct lu_env *env, struct lod_object *lo,
668 const struct lu_buf *buf);
669 int lod_qos_prep_create(const struct lu_env *env, struct lod_object *lo,
670 struct lu_attr *attr, struct thandle *th,
672 __u16 lod_comp_entry_stripe_count(struct lod_object *lo,
673 struct lod_layout_component *entry,
675 __u16 lod_get_stripe_count(struct lod_device *lod, struct lod_object *lo,
676 __u16 stripe_count, bool overstriping);
677 void lod_qos_statfs_update(const struct lu_env *env, struct lod_device *lod,
678 struct lu_tgt_descs *ltd);
681 int lod_procfs_init(struct lod_device *lod);
682 void lod_procfs_fini(struct lod_device *lod);
685 extern struct dt_object_operations lod_obj_ops;
686 extern struct lu_object_operations lod_lu_obj_ops;
688 int lod_load_lmv_shards(const struct lu_env *env, struct lod_object *lo,
689 struct lu_buf *buf, bool resize);
690 int lod_declare_striped_create(const struct lu_env *env, struct dt_object *dt,
691 struct lu_attr *attr,
692 const struct lu_buf *lovea, struct thandle *th);
693 int lod_striped_create(const struct lu_env *env, struct dt_object *dt,
694 struct lu_attr *attr, struct dt_object_format *dof,
696 int lod_alloc_foreign_lov(struct lod_object *lo, size_t size);
697 void lod_free_foreign_lov(struct lod_object *lo);
698 void lod_striping_free_nolock(const struct lu_env *env, struct lod_object *lo);
699 void lod_striping_free(const struct lu_env *env, struct lod_object *lo);
701 int lod_obj_for_each_stripe(const struct lu_env *env, struct lod_object *lo,
703 struct lod_obj_stripe_cb_data *data);
704 int lod_comp_copy_ost_lists(struct lod_layout_component *lod_comp,
705 struct lov_user_md_v3 *v3);
706 void lod_adjust_stripe_size(struct lod_layout_component *comp,
707 __u32 def_stripe_size);
709 /* lod_sub_object.c */
710 struct thandle *lod_sub_get_thandle(const struct lu_env *env,
712 const struct dt_object *sub_obj,
713 bool *record_update);
714 int lod_sub_declare_create(const struct lu_env *env, struct dt_object *dt,
715 struct lu_attr *attr,
716 struct dt_allocation_hint *hint,
717 struct dt_object_format *dof, struct thandle *th);
718 int lod_sub_create(const struct lu_env *env, struct dt_object *dt,
719 struct lu_attr *attr, struct dt_allocation_hint *hint,
720 struct dt_object_format *dof, struct thandle *th);
721 int lod_sub_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
723 int lod_sub_ref_add(const struct lu_env *env, struct dt_object *dt,
725 int lod_sub_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
727 int lod_sub_ref_del(const struct lu_env *env, struct dt_object *dt,
729 int lod_sub_declare_destroy(const struct lu_env *env, struct dt_object *dt,
731 int lod_sub_destroy(const struct lu_env *env, struct dt_object *dt,
733 int lod_sub_declare_insert(const struct lu_env *env, struct dt_object *dt,
734 const struct dt_rec *rec, const struct dt_key *key,
736 int lod_sub_insert(const struct lu_env *env, struct dt_object *dt,
737 const struct dt_rec *rec, const struct dt_key *key,
739 int lod_sub_declare_delete(const struct lu_env *env, struct dt_object *dt,
740 const struct dt_key *key, struct thandle *th);
741 int lod_sub_delete(const struct lu_env *env, struct dt_object *dt,
742 const struct dt_key *name, struct thandle *th);
743 int lod_sub_declare_xattr_set(const struct lu_env *env, struct dt_object *dt,
744 const struct lu_buf *buf, const char *name,
745 int fl, struct thandle *th);
746 int lod_sub_xattr_set(const struct lu_env *env, struct dt_object *dt,
747 const struct lu_buf *buf, const char *name, int fl,
749 int lod_sub_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
750 const struct lu_attr *attr, struct thandle *th);
751 int lod_sub_attr_set(const struct lu_env *env, struct dt_object *dt,
752 const struct lu_attr *attr, struct thandle *th);
753 int lod_sub_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
754 const char *name, struct thandle *th);
755 int lod_sub_xattr_del(const struct lu_env *env, struct dt_object *dt,
756 const char *name, struct thandle *th);
757 int lod_sub_declare_write(const struct lu_env *env, struct dt_object *dt,
758 const struct lu_buf *buf, loff_t pos,
760 ssize_t lod_sub_write(const struct lu_env *env, struct dt_object *dt,
761 const struct lu_buf *buf, loff_t *pos,
763 int lod_sub_declare_punch(const struct lu_env *env, struct dt_object *dt,
764 __u64 start, __u64 end, struct thandle *th);
765 int lod_sub_punch(const struct lu_env *env, struct dt_object *dt,
766 __u64 start, __u64 end, struct thandle *th);
768 int lod_sub_prep_llog(const struct lu_env *env, struct lod_device *lod,
769 struct dt_device *dt, int index);