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/
31 * lustre/lod/lod_internal.h
33 * Author: Alex Zhuravlev <alexey.zhuravlev@intel.com>
34 * Author: Mikhail Pershin <mike.pershin@intel.com>
37 #ifndef _LOD_INTERNAL_H
38 #define _LOD_INTERNAL_H
40 #include <libcfs/libcfs.h>
41 #include <uapi/linux/lustre/lustre_cfg.h>
43 #include <dt_object.h>
45 #define LOV_USES_ASSIGNED_STRIPE 0
46 #define LOV_USES_DEFAULT_STRIPE 1
48 /* Special values to remove LOV EA from disk */
49 #define LOVEA_DELETE_VALUES(size, count, offset, pool) \
50 ((size) == 0 && (count) == 0 && \
51 (offset) == (typeof(offset))(-1) && (pool) == NULL)
53 #define LMVEA_DELETE_VALUES(count, offset) \
54 ((count) == 0 && (offset) == (typeof(offset))(-1))
57 char pool_name[LOV_MAXPOOLNAME + 1];
58 struct lu_tgt_pool pool_obds; /* pool members */
59 atomic_t pool_refcount;
60 struct lu_qos_rr pool_rr;
61 struct rhash_head pool_hash; /* access by poolname */
62 struct list_head pool_list;
63 struct rcu_head pool_rcu;
64 struct proc_dir_entry *pool_proc_entry;
65 struct obd_device *pool_lobd; /* owner */
66 time64_t pool_spill_expire;
67 struct proc_dir_entry *pool_spill_proc_entry;
68 bool pool_spill_is_active;
69 unsigned int pool_spill_threshold_pct;
70 char pool_spill_target[LOV_MAXPOOLNAME + 1];
73 int lod_pool_hash_init(struct rhashtable *tbl);
74 void lod_pool_hash_destroy(struct rhashtable *tbl);
75 extern const struct rhashtable_params pools_hash_params;
77 #define pool_tgt_count(p) ((p)->pool_obds.op_count)
78 #define pool_tgt_array(p) ((p)->pool_obds.op_array)
79 #define pool_tgt_rw_sem(p) ((p)->pool_obds.op_rw_sem)
81 #define lod_tgt_desc lu_tgt_desc
82 #define lod_tgt_descs lu_tgt_descs
84 #define OST_TGT(lod, index) LTD_TGT(&lod->lod_ost_descs, index)
85 #define MDT_TGT(lod, index) LTD_TGT(&lod->lod_mdt_descs, index)
87 struct lod_avoid_guide {
88 /* ids of OSSs avoid guidance */
89 __u32 *lag_oss_avoid_array;
90 /* number of filled array items */
91 unsigned int lag_oaa_count;
92 /* number of allocated array items */
93 unsigned int lag_oaa_size;
94 /* bitmap of OSTs avoid guidance */
95 unsigned long *lag_ost_avoid_bitmap;
96 u32 lag_ost_avoid_size;
97 /* how many OSTs are available for alloc */
101 #define LOD_DOM_MIN_SIZE_KB (LOV_MIN_STRIPE_SIZE >> 10)
102 #define LOD_DOM_SFS_MAX_AGE 10
105 struct dt_device lod_dt_dev;
106 struct obd_export *lod_child_exp;
107 struct dt_device *lod_child;
108 struct lprocfs_stats *lod_stats;
109 spinlock_t lod_connects_lock;
111 unsigned int lod_recovery_completed:1,
114 lod_child_got_update_log:1;
116 /* protect ld_active_tgt_count, ltd_active and lod_md_root */
119 /* Description of OST */
120 struct lod_tgt_descs lod_ost_descs;
121 /* Description of MDT */
122 struct lod_tgt_descs lod_mdt_descs;
124 /* Recovery thread for lod_child */
125 struct task_struct *lod_child_recovery_task;
127 /* maximum EA size underlied OSD may have */
128 unsigned int lod_osd_max_easize;
129 /* maximum size of MDT stripe for Data-on-MDT files. */
130 unsigned int lod_dom_stripesize_max_kb;
131 /* current DOM default stripe size adjusted by threshold */
132 unsigned int lod_dom_stripesize_cur_kb;
133 /* Threshold at which DOM default stripe will start decreasing */
134 __u64 lod_dom_threshold_free_mb;
136 /* Local OSD statfs cache */
137 spinlock_t lod_lsfs_lock;
138 time64_t lod_lsfs_age;
139 __u64 lod_lsfs_total_mb;
140 __u64 lod_lsfs_free_mb;
144 struct rhashtable lod_pools_hash_body; /* used for key access */
145 struct list_head lod_pool_list; /* used for sequential access */
146 struct proc_dir_entry *lod_pool_proc_entry;
147 struct proc_dir_entry *lod_spill_proc_entry;
149 enum lustre_sec_part lod_sp_me;
151 struct proc_dir_entry *lod_symlink;
152 struct dentry *lod_debugfs;
154 /* ROOT object, used to fetch FS default striping */
155 struct lod_object *lod_md_root;
158 #define lod_ost_bitmap lod_ost_descs.ltd_tgt_bitmap
159 #define lod_ost_count lod_ost_descs.ltd_lov_desc.ld_tgt_count
160 #define lod_remote_mdt_count lod_mdt_descs.ltd_lmv_desc.ld_tgt_count
162 struct lod_layout_component {
163 struct lu_extent llc_extent;
166 __u32 llc_stripe_size;
168 __u16 llc_layout_gen;
169 __u16 llc_stripe_offset;
170 __u16 llc_stripe_count;
171 __u16 llc_stripes_allocated;
172 __u64 llc_timestamp; /* snapshot time */
174 /* ost list specified with LOV_USER_MAGIC_SPECIFIC lum */
175 struct lu_tgt_pool llc_ostlist;
176 struct dt_object **llc_stripe;
177 __u32 *llc_ost_indices;
180 struct lod_default_striping {
182 /* current layout component count */
183 __u16 lds_def_comp_cnt;
184 __u16 lds_def_mirror_cnt;
185 /* the largest comp count ever used */
186 __u32 lds_def_comp_size_cnt;
187 struct lod_layout_component *lds_def_comp_entries;
189 __u32 lds_dir_def_stripe_count;
190 __u32 lds_dir_def_stripe_offset;
191 __u32 lds_dir_def_hash_type;
192 __u8 lds_dir_def_max_inherit;
193 __u8 lds_dir_def_max_inherit_rr;
194 /* default file striping flags (LOV) */
195 __u32 lds_def_striping_set:1,
196 lds_def_striping_is_composite:1,
197 /* default dir striping flags (LMV) */
198 lds_dir_def_striping_set:1;
201 static inline __u8 lmv_inherit_next(__u8 inherit)
203 if (inherit == LMV_INHERIT_END || inherit == LMV_INHERIT_NONE)
204 return LMV_INHERIT_NONE;
206 if (inherit == LMV_INHERIT_UNLIMITED || inherit > LMV_INHERIT_MAX)
212 static inline __u8 lmv_inherit_rr_next(__u8 inherit_rr)
214 if (inherit_rr == LMV_INHERIT_RR_NONE ||
215 inherit_rr == LMV_INHERIT_RR_UNLIMITED ||
216 inherit_rr > LMV_INHERIT_RR_MAX)
219 return inherit_rr - 1;
222 struct lod_mirror_entry {
228 __u16 lme_preference;
229 /* start,end index of this mirror in ldo_comp_entries */
235 /* common fields for both files and directories */
236 struct dt_object ldo_obj;
237 struct mutex ldo_layout_mutex;
239 /* file stripe (LOV) */
241 __u32 ldo_layout_gen;
242 /* Layout component count for a regular file.
243 * It equals to 1 for non-composite layout. */
245 /* Layout mirror count for a PFLR file.
246 * It's 0 for files with non-composite layout. */
247 __u16 ldo_mirror_count;
248 struct lod_mirror_entry *ldo_mirrors;
249 __u32 ldo_is_composite:1,
254 /* directory stripe (LMV) */
256 /* Slave stripe count for striped directory. */
257 __u16 ldo_dir_stripe_count;
258 /* How many stripes allocated for a striped directory */
259 __u16 ldo_dir_stripes_allocated;
260 __u32 ldo_dir_stripe_offset;
261 __u32 ldo_dir_hash_type;
262 __u32 ldo_dir_migrate_offset;
263 __u32 ldo_dir_migrate_hash;
264 __u32 ldo_dir_layout_version;
265 /* Is a slave stripe of striped directory? */
266 __u32 ldo_dir_slave_stripe:1,
268 /* the stripe has been loaded */
269 ldo_dir_stripe_loaded:1,
270 /* foreign directory */
273 * This default LMV is parent default LMV, which will be
274 * used in child creation, and it's not cached, so this
275 * field is invalid after create, make sure it's used by
276 * lod_dir_striping_create_internal() only.
278 struct lod_default_striping *ldo_def_striping;
283 /* foreign/raw format LOV */
284 char *ldo_foreign_lov;
285 size_t ldo_foreign_lov_size;
288 /* foreign/raw format LMV */
289 char *ldo_foreign_lmv;
290 size_t ldo_foreign_lmv_size;
293 /* file stripe (LOV) */
294 struct lod_layout_component *ldo_comp_entries;
295 /* slave stripes of striped directory (LMV) */
296 struct dt_object **ldo_stripe;
301 #define ldo_dir_split_offset ldo_dir_migrate_offset
302 #define ldo_dir_split_hash ldo_dir_migrate_hash
304 #define lod_foreach_mirror_comp(comp, lo, mirror_idx) \
305 for (comp = &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_start]; \
306 comp <= &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_end]; \
309 static inline bool lod_is_flr(const struct lod_object *lo)
311 if (!lo->ldo_is_composite)
314 return (lo->ldo_flr_state & LCM_FL_FLR_MASK) != LCM_FL_NONE;
317 static inline bool lod_is_splitting(const struct lod_object *lo)
319 return lmv_hash_is_splitting(lo->ldo_dir_hash_type);
322 static inline bool lod_is_migrating(const struct lod_object *lo)
324 return lmv_hash_is_migrating(lo->ldo_dir_hash_type);
327 static inline bool lod_is_layout_changing(const struct lod_object *lo)
329 return lmv_hash_is_layout_changing(lo->ldo_dir_hash_type);
332 static inline int lod_set_pool(char **pool, const char *new_pool)
336 if (*pool == new_pool)
340 len = strlen(*pool) + 1;
341 OBD_FREE(*pool, len);
344 if (new_pool != NULL) {
345 len = strlen(new_pool) + 1;
346 OBD_ALLOC(*pool, len);
349 strlcpy(*pool, new_pool, len);
354 static inline int lod_set_def_pool(struct lod_default_striping *lds,
355 int i, const char *new_pool)
357 return lod_set_pool(&lds->lds_def_comp_entries[i].llc_pool, new_pool);
360 static inline int lod_obj_set_pool(struct lod_object *lo, int i,
361 const char *new_pool)
363 return lod_set_pool(&lo->ldo_comp_entries[i].llc_pool, new_pool);
367 * Create new layout generation.
369 * The only requirement for layout generation is that it changes when
370 * the layout is modified, so a circular counter is sufficient for the
371 * low rate of layout modifications.
373 * Layout generation is also used to generate unique component ID.
374 * To detect generation overflow, we preserve the highest bit of the
375 * generation when it wrapped.
377 static inline void lod_obj_inc_layout_gen(struct lod_object *lo)
379 __u32 preserve = lo->ldo_layout_gen & ~LCME_ID_MASK;
380 lo->ldo_layout_gen++;
381 lo->ldo_layout_gen |= preserve;
382 /* Zero is not a valid generation */
383 if (unlikely((lo->ldo_layout_gen & LCME_ID_MASK) == 0))
384 lo->ldo_layout_gen++;
388 struct dt_object *lit_obj; /* object from the layer below */
389 /* stripe offset of iteration */
390 __u32 lit_stripe_index;
392 struct dt_it *lit_it; /* iterator from the layer below */
395 struct lod_thread_info {
396 /* per-thread buffer for LOV EA, may be vmalloc'd */
398 __u32 lti_ea_store_size;
399 /* per-thread buffer for LMV EA */
400 struct lu_buf lti_buf;
401 struct ost_id lti_ostid;
402 struct lu_fid lti_fid;
403 struct obd_statfs lti_osfs;
404 struct lu_attr lti_attr;
405 struct lod_it lti_it;
406 struct ldlm_res_id lti_res_id;
407 /* used to hold lu_dirent, sizeof(struct lu_dirent) + NAME_MAX */
408 char lti_key[sizeof(struct lu_dirent) +
410 struct dt_object_format lti_format;
411 struct lu_name lti_name;
412 struct lu_buf lti_linkea_buf;
413 struct dt_insert_rec lti_dt_rec;
414 struct llog_catid lti_cid;
415 struct llog_cookie lti_cookie;
416 struct lustre_cfg lti_lustre_cfg;
417 /* used to store parent default striping in create */
418 struct lod_default_striping lti_def_striping;
419 struct filter_fid lti_ff;
421 size_t lti_comp_size;
423 struct lu_attr lti_layout_attr;
424 /* object allocation avoid guide info */
425 struct lod_avoid_guide lti_avoid;
426 union lmv_mds_md lti_lmv;
427 struct dt_allocation_hint lti_ah;
430 extern const struct lu_device_operations lod_lu_ops;
432 static inline int lu_device_is_lod(struct lu_device *d)
434 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &lod_lu_ops);
437 static inline struct lod_device* lu2lod_dev(struct lu_device *d)
439 LASSERT(lu_device_is_lod(d));
440 return container_of_safe(d, struct lod_device, lod_dt_dev.dd_lu_dev);
443 static inline struct lu_device *lod2lu_dev(struct lod_device *d)
445 return &d->lod_dt_dev.dd_lu_dev;
448 static inline struct obd_device *lod2obd(struct lod_device *d)
450 return d->lod_dt_dev.dd_lu_dev.ld_obd;
453 static inline struct lod_device *dt2lod_dev(struct dt_device *d)
455 LASSERT(lu_device_is_lod(&d->dd_lu_dev));
456 return container_of(d, struct lod_device, lod_dt_dev);
459 static inline struct lod_object *lu2lod_obj(struct lu_object *o)
461 LASSERT(ergo(o != NULL, lu_device_is_lod(o->lo_dev)));
462 return container_of_safe(o, struct lod_object, ldo_obj.do_lu);
465 static inline struct lu_object *lod2lu_obj(struct lod_object *obj)
467 return &obj->ldo_obj.do_lu;
470 static inline const struct lu_fid *lod_object_fid(struct lod_object *obj)
472 return lu_object_fid(lod2lu_obj(obj));
475 static inline struct lod_object *lod_obj(const struct lu_object *o)
477 LASSERT(lu_device_is_lod(o->lo_dev));
478 return container_of(o, struct lod_object, ldo_obj.do_lu);
481 static inline struct lod_object *lod_dt_obj(const struct dt_object *d)
483 return lod_obj(&d->do_lu);
486 static inline struct dt_object* lod_object_child(struct lod_object *o)
488 return container_of(lu_object_next(lod2lu_obj(o)),
489 struct dt_object, do_lu);
492 static inline bool lod_obj_is_striped(struct dt_object *dt)
494 struct lod_object *lo = lod_dt_obj(dt);
498 if (!dt_object_exists(dt_object_child(dt)))
501 mutex_lock(&lo->ldo_layout_mutex);
503 if (S_ISDIR(dt->do_lu.lo_header->loh_attr)) {
504 rc = lo->ldo_dir_stripe_count != 0;
505 } else if (lo->ldo_is_foreign) {
508 for (i = 0; i < lo->ldo_comp_cnt; i++) {
509 if (lo->ldo_comp_entries[i].llc_stripe == NULL)
511 LASSERT(lo->ldo_comp_entries[i].llc_stripe_count > 0);
517 mutex_unlock(&lo->ldo_layout_mutex);
521 extern struct lu_context_key lod_thread_key;
523 static inline struct lod_thread_info *lod_env_info(const struct lu_env *env)
525 struct lod_thread_info *info;
526 info = lu_context_key_get(&env->le_ctx, &lod_thread_key);
531 static inline struct lu_name *
532 lod_name_get(const struct lu_env *env, const void *area, int len)
534 struct lu_name *lname;
536 lname = &lod_env_info(env)->lti_name;
537 lname->ln_name = area;
538 lname->ln_namelen = len;
542 static inline struct lod_default_striping *
543 lod_lds_buf_get(const struct lu_env *env)
545 struct lod_thread_info *info = lod_env_info(env);
547 info->lti_def_striping.lds_def_striping_set = 0;
548 info->lti_def_striping.lds_dir_def_striping_set = 0;
549 return &info->lti_def_striping;
552 static inline void lod_layout_get_pool(struct lod_layout_component *entries,
553 int count, char *pool, int len)
557 for (i = 0; i < count; i++) {
558 if (entries[i].llc_pool != NULL) {
559 strlcpy(pool, entries[i].llc_pool, len);
565 #define lod_foreach_mdt(lod, mdt) ltd_foreach_tgt(&(lod)->lod_mdt_descs, mdt)
566 #define lod_foreach_ost(lod, ost) ltd_foreach_tgt(&(lod)->lod_ost_descs, ost)
569 extern struct kmem_cache *lod_object_kmem;
570 int lod_fld_lookup(const struct lu_env *env, struct lod_device *lod,
571 const struct lu_fid *fid, __u32 *tgt, int *flags);
572 int lod_sub_init_llog(const struct lu_env *env, struct lod_device *lod,
573 struct dt_device *dt);
574 void lod_sub_fini_llog(const struct lu_env *env,
575 struct dt_device *dt, struct task_struct **taskp);
576 int lodname2mdt_index(char *lodname, __u32 *mdt_index);
577 extern void target_recovery_fini(struct obd_device *obd);
580 void lod_getref(struct lod_tgt_descs *ltd);
581 void lod_putref(struct lod_device *lod, struct lod_tgt_descs *ltd);
582 int lod_add_device(const struct lu_env *env, struct lod_device *lod,
583 char *osp, unsigned index, unsigned gen, int mdt_index,
584 char *type, int active);
585 int lod_del_device(const struct lu_env *env, struct lod_device *lod,
586 struct lod_tgt_descs *ltd, char *osp, unsigned int idx,
588 int validate_lod_and_idx(struct lod_device *lod, __u32 idx);
589 int lod_fini_tgt(const struct lu_env *env, struct lod_device *lod,
590 struct lod_tgt_descs *ltd);
591 int lod_striping_load(const struct lu_env *env, struct lod_object *lo);
592 int lod_striping_reload(const struct lu_env *env, struct lod_object *lo,
593 const struct lu_buf *buf);
594 void lod_dom_stripesize_recalc(struct lod_device *d);
596 int lod_get_ea(const struct lu_env *env, struct lod_object *lo,
599 lod_get_lov_ea(const struct lu_env *env, struct lod_object *lo)
601 return lod_get_ea(env, lo, XATTR_NAME_LOV);
605 lod_get_lmv_ea(const struct lu_env *env, struct lod_object *lo)
607 return lod_get_ea(env, lo, XATTR_NAME_LMV);
611 lod_get_default_lmv_ea(const struct lu_env *env, struct lod_object *lo)
613 return lod_get_ea(env, lo, XATTR_NAME_DEFAULT_LMV);
617 lod_comp_set_init(struct lod_layout_component *entry)
619 entry->llc_flags |= LCME_FL_INIT;
623 lod_comp_unset_init(struct lod_layout_component *entry)
625 entry->llc_flags &= ~LCME_FL_INIT;
629 lod_comp_inited(const struct lod_layout_component *entry)
631 return entry->llc_flags & LCME_FL_INIT;
635 * For a PFL file, some of its component could be un-instantiated, so
636 * that their lov_ost_data_v1 array is not needed, we'd use this function
637 * to reduce the LOVEA buffer size.
639 * Note: if llc_ostlist contains value, we'd need lov_ost_data_v1 array to
640 * save the specified OST index list.
643 lod_comp_shrink_stripe_count(struct lod_layout_component *lod_comp,
647 * Need one lov_ost_data_v1 to store invalid ost_idx, please refer to
648 * lod_parse_striping()
650 if (!lod_comp_inited(lod_comp) && lod_comp->llc_ostlist.op_count == 0)
654 void lod_fix_desc(struct lov_desc *desc);
655 void lod_fix_desc_qos_maxage(__u32 *val);
656 void lod_fix_desc_pattern(__u32 *val);
657 void lod_fix_desc_stripe_count(__u32 *val);
658 void lod_fix_desc_stripe_size(__u64 *val);
659 void lod_fix_lmv_desc_pattern(__u32 *val);
660 int lod_pools_init(struct lod_device *m, struct lustre_cfg *cfg);
661 int lod_pools_fini(struct lod_device *m);
662 int lod_parse_striping(const struct lu_env *env, struct lod_object *mo,
663 const struct lu_buf *buf);
664 int lod_parse_dir_striping(const struct lu_env *env, struct lod_object *lo,
665 const struct lu_buf *buf);
666 int lod_initialize_objects(const struct lu_env *env, struct lod_object *mo,
667 struct lov_ost_data_v1 *objs, int index);
668 int lod_verify_striping(const struct lu_env *env, struct lod_device *d,
669 struct lod_object *lo, const struct lu_buf *buf,
671 int lod_generate_lovea(const struct lu_env *env, struct lod_object *lo,
672 struct lov_mds_md *lmm, int *lmm_size, bool is_dir);
673 int lod_ea_store_resize(struct lod_thread_info *info, size_t size);
674 int lod_def_striping_comp_resize(struct lod_default_striping *lds, __u16 count);
675 void lod_free_def_comp_entries(struct lod_default_striping *lds);
676 void lod_free_comp_entries(struct lod_object *lo);
677 int lod_alloc_comp_entries(struct lod_object *lo, int mirror_cnt, int comp_cnt);
678 int lod_fill_mirrors(struct lod_object *lo);
681 struct pool_desc *lod_find_pool(struct lod_device *lod, char *poolname);
682 void lod_pool_putref(struct pool_desc *pool);
683 int lod_pool_del(struct obd_device *obd, char *poolname);
684 int lod_check_index_in_pool(__u32 idx, struct pool_desc *pool);
685 int lod_pool_new(struct obd_device *obd, char *poolname);
686 int lod_pool_add(struct obd_device *obd, char *poolname, char *ostname);
687 int lod_pool_remove(struct obd_device *obd, char *poolname, char *ostname);
689 struct lod_obj_stripe_cb_data;
690 typedef int (*lod_obj_stripe_cb_t)(const struct lu_env *env,
691 struct lod_object *lo, struct dt_object *dt,
693 int comp_idx, int stripe_idx,
694 struct lod_obj_stripe_cb_data *data);
695 typedef bool (*lod_obj_comp_skip_cb_t)(const struct lu_env *env,
696 struct lod_object *lo, int comp_idx,
697 struct lod_obj_stripe_cb_data *data);
698 typedef int (*lod_obj_comp_cb_t)(const struct lu_env *env,
699 struct lod_object *lo, int comp_idx,
700 struct lod_obj_stripe_cb_data *data);
701 struct lod_obj_stripe_cb_data {
703 const struct lu_attr *locd_attr;
705 const struct lu_buf *locd_buf;
707 lod_obj_stripe_cb_t locd_stripe_cb;
708 lod_obj_comp_skip_cb_t locd_comp_skip_cb;
709 lod_obj_comp_cb_t locd_comp_cb;
714 int lod_mdt_alloc_qos(const struct lu_env *env, struct lod_object *lo,
715 struct dt_object **stripes, u32 stripe_idx,
717 int lod_mdt_alloc_rr(const struct lu_env *env, struct lod_object *lo,
718 struct dt_object **stripes, u32 stripe_idx,
720 int lod_prepare_create(const struct lu_env *env, struct lod_object *lo,
721 struct lu_attr *attr, const struct lu_buf *buf,
723 int lod_use_defined_striping(const struct lu_env *, struct lod_object *,
724 const struct lu_buf *);
725 int lod_qos_parse_config(const struct lu_env *env, struct lod_object *lo,
726 const struct lu_buf *buf);
727 int lod_qos_prep_create(const struct lu_env *env, struct lod_object *lo,
728 struct lu_attr *attr, struct thandle *th,
729 int comp_idx, __u64 reserve);
730 __u16 lod_comp_entry_stripe_count(struct lod_object *lo,
731 int comp_idx, bool is_dir);
732 __u16 lod_get_stripe_count(struct lod_device *lod, struct lod_object *lo,
733 int comp_idx, __u16 stripe_count, bool overstriping);
734 void lod_qos_statfs_update(const struct lu_env *env, struct lod_device *lod,
735 struct lu_tgt_descs *ltd);
738 int lod_procfs_init(struct lod_device *lod);
739 void lod_procfs_fini(struct lod_device *lod);
742 extern const struct dt_object_operations lod_obj_ops;
743 extern const struct lu_object_operations lod_lu_obj_ops;
745 int lod_load_lmv_shards(const struct lu_env *env, struct lod_object *lo,
746 struct lu_buf *buf, bool resize);
747 int lod_declare_striped_create(const struct lu_env *env, struct dt_object *dt,
748 struct lu_attr *attr,
749 const struct lu_buf *lovea, struct thandle *th);
750 int lod_striped_create(const struct lu_env *env, struct dt_object *dt,
751 struct lu_attr *attr, struct dt_object_format *dof,
753 int lod_alloc_foreign_lov(struct lod_object *lo, size_t size);
754 void lod_free_foreign_lov(struct lod_object *lo);
755 void lod_striping_free_nolock(const struct lu_env *env, struct lod_object *lo);
756 void lod_striping_free(const struct lu_env *env, struct lod_object *lo);
758 int lod_obj_for_each_stripe(const struct lu_env *env, struct lod_object *lo,
760 struct lod_obj_stripe_cb_data *data);
761 int lod_comp_copy_ost_lists(struct lod_layout_component *lod_comp,
762 struct lov_user_md_v3 *v3);
763 void lod_adjust_stripe_size(struct lod_layout_component *comp,
764 __u32 def_stripe_size);
766 /* lod_sub_object.c */
767 struct thandle *lod_sub_get_thandle(const struct lu_env *env,
769 const struct dt_object *sub_obj,
770 bool *record_update);
771 int lod_sub_declare_create(const struct lu_env *env, struct dt_object *dt,
772 struct lu_attr *attr,
773 struct dt_allocation_hint *hint,
774 struct dt_object_format *dof, struct thandle *th);
775 int lod_sub_create(const struct lu_env *env, struct dt_object *dt,
776 struct lu_attr *attr, struct dt_allocation_hint *hint,
777 struct dt_object_format *dof, struct thandle *th);
778 int lod_sub_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
780 int lod_sub_ref_add(const struct lu_env *env, struct dt_object *dt,
782 int lod_sub_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
784 int lod_sub_ref_del(const struct lu_env *env, struct dt_object *dt,
786 int lod_sub_declare_destroy(const struct lu_env *env, struct dt_object *dt,
788 int lod_sub_destroy(const struct lu_env *env, struct dt_object *dt,
790 int lod_sub_declare_insert(const struct lu_env *env, struct dt_object *dt,
791 const struct dt_rec *rec, const struct dt_key *key,
793 int lod_sub_insert(const struct lu_env *env, struct dt_object *dt,
794 const struct dt_rec *rec, const struct dt_key *key,
796 int lod_sub_declare_delete(const struct lu_env *env, struct dt_object *dt,
797 const struct dt_key *key, struct thandle *th);
798 int lod_sub_delete(const struct lu_env *env, struct dt_object *dt,
799 const struct dt_key *name, struct thandle *th);
800 int lod_sub_declare_xattr_set(const struct lu_env *env, struct dt_object *dt,
801 const struct lu_buf *buf, const char *name,
802 int fl, struct thandle *th);
803 int lod_sub_xattr_set(const struct lu_env *env, struct dt_object *dt,
804 const struct lu_buf *buf, const char *name, int fl,
806 int lod_sub_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
807 const struct lu_attr *attr, struct thandle *th);
808 int lod_sub_attr_set(const struct lu_env *env, struct dt_object *dt,
809 const struct lu_attr *attr, struct thandle *th);
810 int lod_sub_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
811 const char *name, struct thandle *th);
812 int lod_sub_xattr_del(const struct lu_env *env, struct dt_object *dt,
813 const char *name, struct thandle *th);
814 int lod_sub_declare_write(const struct lu_env *env, struct dt_object *dt,
815 const struct lu_buf *buf, loff_t pos,
817 ssize_t lod_sub_write(const struct lu_env *env, struct dt_object *dt,
818 const struct lu_buf *buf, loff_t *pos,
820 int lod_sub_declare_punch(const struct lu_env *env, struct dt_object *dt,
821 __u64 start, __u64 end, struct thandle *th);
822 int lod_sub_punch(const struct lu_env *env, struct dt_object *dt,
823 __u64 start, __u64 end, struct thandle *th);
825 int lod_sub_prep_llog(const struct lu_env *env, struct lod_device *lod,
826 struct dt_device *dt, int index);
827 void lod_check_and_spill_pool(const struct lu_env *env, struct lod_device *lod,
829 void lod_spill_target_refresh(const struct lu_env *env, struct lod_device *lod,
830 struct pool_desc *pool);
831 extern struct lprocfs_vars lprocfs_lod_spill_vars[];