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 atomic_t pool_spill_hit;
71 char pool_spill_target[LOV_MAXPOOLNAME + 1];
72 bool pool_same_space; /* targets in pool balanced*/
73 time64_t pool_same_space_expire; /*uses ld_qos_maxage*/
77 int lod_pool_hash_init(struct rhashtable *tbl);
78 void lod_pool_hash_destroy(struct rhashtable *tbl);
79 bool lod_pool_exists(struct lod_device *lod, char *poolname);
81 #define pool_tgt_count(p) ((p)->pool_obds.op_count)
82 #define pool_tgt_array(p) ((p)->pool_obds.op_array)
83 #define pool_tgt_rw_sem(p) ((p)->pool_obds.op_rw_sem)
85 #define lod_tgt_desc lu_tgt_desc
86 #define lod_tgt_descs lu_tgt_descs
88 #define OST_TGT(lod, index) LTD_TGT(&lod->lod_ost_descs, index)
89 #define MDT_TGT(lod, index) LTD_TGT(&lod->lod_mdt_descs, index)
91 struct lod_avoid_guide {
92 /* ids of OSSs avoid guidance */
93 __u32 *lag_oss_avoid_array;
94 /* number of filled array items */
95 unsigned int lag_oaa_count;
96 /* number of allocated array items */
97 unsigned int lag_oaa_size;
98 /* bitmap of OSTs avoid guidance */
99 unsigned long *lag_ost_avoid_bitmap;
100 u32 lag_ost_avoid_size;
101 /* how many OSTs are available for alloc */
105 #define LOD_DOM_MIN_SIZE_KB (LOV_MIN_STRIPE_SIZE >> 10)
106 #define LOD_DOM_SFS_MAX_AGE 10
109 struct dt_device lod_dt_dev;
110 struct obd_export *lod_child_exp;
111 struct dt_device *lod_child;
112 struct lprocfs_stats *lod_stats;
113 spinlock_t lod_connects_lock;
115 unsigned int lod_recovery_completed:1,
118 lod_child_got_update_log:1;
120 /* protect ld_active_tgt_count, ltd_active and lod_md_root */
123 /* Description of OST */
124 struct lod_tgt_descs lod_ost_descs;
125 /* Description of MDT */
126 struct lod_tgt_descs lod_mdt_descs;
128 /* Recovery thread for lod_child */
129 struct task_struct *lod_child_recovery_task;
131 /* maximum EA size underlied OSD may have */
132 unsigned int lod_osd_max_easize;
133 /* maximum size of MDT stripe for Data-on-MDT files. */
134 unsigned int lod_dom_stripesize_max_kb;
135 /* current DOM default stripe size adjusted by threshold */
136 unsigned int lod_dom_stripesize_cur_kb;
137 /* Threshold at which DOM default stripe will start decreasing */
138 __u64 lod_dom_threshold_free_mb;
140 /* Local OSD statfs cache */
141 spinlock_t lod_lsfs_lock;
142 time64_t lod_lsfs_age;
143 __u64 lod_lsfs_total_mb;
144 __u64 lod_lsfs_free_mb;
148 struct rhashtable lod_pools_hash_body; /* used for key access */
149 struct list_head lod_pool_list; /* used for sequential access */
150 struct proc_dir_entry *lod_pool_proc_entry;
151 struct proc_dir_entry *lod_spill_proc_entry;
153 enum lustre_sec_part lod_sp_me;
155 struct proc_dir_entry *lod_symlink;
156 struct dentry *lod_debugfs;
158 /* ROOT object, used to fetch FS default striping */
159 struct lod_object *lod_md_root;
161 /* max stripe count if stripe count is set to -1. 0 means unlimited */
162 unsigned int lod_max_stripecount;
163 unsigned int lod_max_mdt_stripecount;
166 #define lod_ost_bitmap lod_ost_descs.ltd_tgt_bitmap
167 #define lod_ost_count lod_ost_descs.ltd_lov_desc.ld_tgt_count
168 #define lod_ost_active_count lod_ost_descs.ltd_lov_desc.ld_active_tgt_count
169 #define lod_remote_mdt_count lod_mdt_descs.ltd_lmv_desc.ld_tgt_count
171 struct lod_layout_component {
172 struct lu_extent llc_extent;
175 __u32 llc_stripe_size;
177 __u16 llc_layout_gen;
178 __u16 llc_stripe_offset;
179 __u16 llc_stripe_count;
180 __u16 llc_stripes_allocated;
181 __u64 llc_timestamp; /* snapshot time */
183 /* ost list specified with LOV_USER_MAGIC_SPECIFIC lum */
184 struct lu_tgt_pool llc_ostlist;
185 struct dt_object **llc_stripe;
186 __u32 *llc_ost_indices;
189 struct lod_default_striping {
191 /* current layout component count */
192 __u16 lds_def_comp_cnt;
193 __u16 lds_def_mirror_cnt;
194 /* the largest comp count ever used */
195 __u32 lds_def_comp_size_cnt;
196 struct lod_layout_component *lds_def_comp_entries;
198 __u32 lds_dir_def_stripe_count;
199 __u32 lds_dir_def_stripe_offset;
200 __u32 lds_dir_def_hash_type;
201 __u8 lds_dir_def_max_inherit;
202 __u8 lds_dir_def_max_inherit_rr;
203 /* default file striping flags (LOV) */
204 __u32 lds_def_striping_set:1,
205 lds_def_striping_is_composite:1,
206 /* default dir striping flags (LMV) */
207 lds_dir_def_striping_set:1;
210 static inline __u8 lmv_inherit_next(__u8 inherit)
212 if (inherit == LMV_INHERIT_END || inherit == LMV_INHERIT_NONE)
213 return LMV_INHERIT_NONE;
215 if (inherit == LMV_INHERIT_UNLIMITED || inherit > LMV_INHERIT_MAX)
221 static inline __u8 lmv_inherit_rr_next(__u8 inherit_rr)
223 if (inherit_rr == LMV_INHERIT_RR_NONE ||
224 inherit_rr == LMV_INHERIT_RR_UNLIMITED ||
225 inherit_rr > LMV_INHERIT_RR_MAX)
228 return inherit_rr - 1;
231 enum layout_verify_flags {
232 LVF_ALL_STALE = BIT(0), /* check not all stale mirrors */
235 struct lod_mirror_entry {
241 __u16 lme_preference;
242 /* start,end index of this mirror in ldo_comp_entries */
248 /* common fields for both files and directories */
249 struct dt_object ldo_obj;
250 struct mutex ldo_layout_mutex;
251 /* foreign file/directory */
252 __u32 ldo_is_foreign:1;
254 /* file stripe (LOV) */
256 __u32 ldo_layout_gen;
257 /* Layout component count for a regular file.
258 * It equals to 1 for non-composite layout. */
260 /* Layout mirror count for a PFLR file.
261 * It's 0 for files with non-composite layout. */
262 __u16 ldo_mirror_count;
263 struct lod_mirror_entry *ldo_mirrors;
264 __u32 ldo_is_composite:1,
268 /* directory stripe (LMV) */
270 /* Slave stripe count for striped directory. */
271 __u16 ldo_dir_stripe_count;
272 /* How many stripes allocated for a striped directory */
273 __u16 ldo_dir_stripes_allocated;
274 __u32 ldo_dir_stripe_offset;
275 __u32 ldo_dir_hash_type;
276 __u32 ldo_dir_migrate_offset;
277 __u32 ldo_dir_migrate_hash;
278 __u32 ldo_dir_layout_version;
279 /* Is a slave stripe of striped directory? */
280 __u32 ldo_dir_slave_stripe:1,
282 /* the stripe has been loaded */
283 ldo_dir_stripe_loaded:1;
285 * This default LMV is parent default LMV, which will be
286 * used in child creation, and it's not cached, so this
287 * field is invalid after create, make sure it's used by
288 * lod_dir_striping_create_internal() only.
290 struct lod_default_striping *ldo_def_striping;
295 /* foreign/raw format LOV */
296 char *ldo_foreign_lov;
297 size_t ldo_foreign_lov_size;
300 /* foreign/raw format LMV */
301 char *ldo_foreign_lmv;
302 size_t ldo_foreign_lmv_size;
305 /* file stripe (LOV) */
306 struct lod_layout_component *ldo_comp_entries;
307 /* slave stripes of striped directory (LMV) */
308 struct dt_object **ldo_stripe;
313 #define ldo_dir_split_offset ldo_dir_migrate_offset
314 #define ldo_dir_split_hash ldo_dir_migrate_hash
316 #define lod_foreach_mirror_comp(comp, lo, mirror_idx) \
317 for (comp = &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_start]; \
318 comp <= &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_end]; \
321 static inline bool lod_is_flr(const struct lod_object *lo)
323 if (!lo->ldo_is_composite)
326 return (lo->ldo_flr_state & LCM_FL_FLR_MASK) != LCM_FL_NONE;
329 static inline bool lod_is_splitting(const struct lod_object *lo)
331 return lmv_hash_is_splitting(lo->ldo_dir_hash_type);
334 static inline bool lod_is_migrating(const struct lod_object *lo)
336 return lmv_hash_is_migrating(lo->ldo_dir_hash_type);
339 static inline bool lod_is_layout_changing(const struct lod_object *lo)
341 return lmv_hash_is_layout_changing(lo->ldo_dir_hash_type);
344 static inline int lod_set_pool(char **pool, const char *new_pool)
348 if (*pool == new_pool)
352 len = strlen(*pool) + 1;
353 OBD_FREE(*pool, len);
356 if (new_pool != NULL) {
357 len = strlen(new_pool) + 1;
358 OBD_ALLOC(*pool, len);
361 strlcpy(*pool, new_pool, len);
366 static inline int lod_set_def_pool(struct lod_default_striping *lds,
367 int i, const char *new_pool)
369 return lod_set_pool(&lds->lds_def_comp_entries[i].llc_pool, new_pool);
372 static inline int lod_obj_set_pool(struct lod_object *lo, int i,
373 const char *new_pool)
375 return lod_set_pool(&lo->ldo_comp_entries[i].llc_pool, new_pool);
379 * Create new layout generation.
381 * The only requirement for layout generation is that it changes when
382 * the layout is modified, so a circular counter is sufficient for the
383 * low rate of layout modifications.
385 * Layout generation is also used to generate unique component ID.
386 * To detect generation overflow, we preserve the highest bit of the
387 * generation when it wrapped.
389 static inline void lod_obj_inc_layout_gen(struct lod_object *lo)
391 __u32 preserve = lo->ldo_layout_gen & ~LCME_ID_MASK;
392 lo->ldo_layout_gen++;
393 lo->ldo_layout_gen |= preserve;
394 /* Zero is not a valid generation */
395 if (unlikely((lo->ldo_layout_gen & LCME_ID_MASK) == 0))
396 lo->ldo_layout_gen++;
400 struct dt_object *lit_obj; /* object from the layer below */
401 /* stripe offset of iteration */
402 __u32 lit_stripe_index;
404 struct dt_it *lit_it; /* iterator from the layer below */
407 struct lod_thread_info {
408 /* per-thread buffer for LOV EA, may be vmalloc'd */
410 __u32 lti_ea_store_size;
411 /* per-thread buffer for LMV EA */
412 struct lu_buf lti_buf;
413 struct ost_id lti_ostid;
414 struct lu_fid lti_fid;
415 struct obd_statfs lti_osfs;
416 struct lu_attr lti_attr;
417 struct lod_it lti_it;
418 struct ldlm_res_id lti_res_id;
419 /* used to hold lu_dirent, sizeof(struct lu_dirent) + NAME_MAX */
420 char lti_key[sizeof(struct lu_dirent) +
422 struct dt_object_format lti_format;
423 struct lu_name lti_name;
424 struct lu_buf lti_linkea_buf;
425 struct dt_insert_rec lti_dt_rec;
426 struct llog_catid lti_cid;
427 struct llog_cookie lti_cookie;
428 struct lustre_cfg lti_lustre_cfg;
429 /* used to store parent default striping in create */
430 struct lod_default_striping lti_def_striping;
431 struct filter_fid lti_ff;
433 size_t lti_comp_size;
435 struct lu_attr lti_layout_attr;
436 /* object allocation avoid guide info */
437 struct lod_avoid_guide lti_avoid;
438 union lmv_mds_md lti_lmv;
439 struct dt_allocation_hint lti_ah;
442 extern const struct lu_device_operations lod_lu_ops;
444 static inline int lu_device_is_lod(struct lu_device *d)
446 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &lod_lu_ops);
449 static inline struct lod_device* lu2lod_dev(struct lu_device *d)
451 LASSERT(lu_device_is_lod(d));
452 return container_of_safe(d, struct lod_device, lod_dt_dev.dd_lu_dev);
455 static inline struct lu_device *lod2lu_dev(struct lod_device *d)
457 return &d->lod_dt_dev.dd_lu_dev;
460 static inline struct obd_device *lod2obd(struct lod_device *d)
462 return d->lod_dt_dev.dd_lu_dev.ld_obd;
465 static inline struct lod_device *dt2lod_dev(struct dt_device *d)
467 LASSERT(lu_device_is_lod(&d->dd_lu_dev));
468 return container_of(d, struct lod_device, lod_dt_dev);
471 static inline struct lod_object *lu2lod_obj(struct lu_object *o)
473 LASSERT(ergo(o != NULL, lu_device_is_lod(o->lo_dev)));
474 return container_of_safe(o, struct lod_object, ldo_obj.do_lu);
477 static inline struct lu_object *lod2lu_obj(struct lod_object *obj)
479 return &obj->ldo_obj.do_lu;
482 static inline const struct lu_fid *lod_object_fid(struct lod_object *obj)
484 return lu_object_fid(lod2lu_obj(obj));
487 static inline struct lod_object *lod_obj(const struct lu_object *o)
489 LASSERT(lu_device_is_lod(o->lo_dev));
490 return container_of(o, struct lod_object, ldo_obj.do_lu);
493 static inline struct lod_object *lod_dt_obj(const struct dt_object *d)
495 return lod_obj(&d->do_lu);
498 static inline struct dt_object* lod_object_child(struct lod_object *o)
500 return container_of(lu_object_next(lod2lu_obj(o)),
501 struct dt_object, do_lu);
504 static inline bool lod_obj_is_striped(struct dt_object *dt)
506 struct lod_object *lo = lod_dt_obj(dt);
510 if (!dt_object_exists(dt_object_child(dt)))
513 mutex_lock(&lo->ldo_layout_mutex);
515 if (S_ISDIR(dt->do_lu.lo_header->loh_attr)) {
516 rc = lo->ldo_dir_stripe_count != 0;
517 } else if (lo->ldo_is_foreign) {
520 for (i = 0; i < lo->ldo_comp_cnt; i++) {
521 if (lo->ldo_comp_entries[i].llc_stripe == NULL)
523 LASSERT(lo->ldo_comp_entries[i].llc_stripe_count > 0);
529 mutex_unlock(&lo->ldo_layout_mutex);
533 extern struct lu_context_key lod_thread_key;
535 static inline struct lod_thread_info *lod_env_info(const struct lu_env *env)
537 struct lod_thread_info *info;
538 info = lu_context_key_get(&env->le_ctx, &lod_thread_key);
543 static inline struct lu_name *
544 lod_name_get(const struct lu_env *env, const void *area, int len)
546 struct lu_name *lname;
548 lname = &lod_env_info(env)->lti_name;
549 lname->ln_name = area;
550 lname->ln_namelen = len;
554 static inline struct lod_default_striping *
555 lod_lds_buf_get(const struct lu_env *env)
557 struct lod_thread_info *info = lod_env_info(env);
559 info->lti_def_striping.lds_def_striping_set = 0;
560 info->lti_def_striping.lds_dir_def_striping_set = 0;
561 return &info->lti_def_striping;
564 static inline void lod_layout_get_pool(struct lod_layout_component *entries,
565 int count, char *pool, int len)
569 for (i = 0; i < count; i++) {
570 if (entries[i].llc_pool != NULL) {
571 strlcpy(pool, entries[i].llc_pool, len);
577 #define lod_foreach_mdt(lod, mdt) ltd_foreach_tgt(&(lod)->lod_mdt_descs, mdt)
578 #define lod_foreach_ost(lod, ost) ltd_foreach_tgt(&(lod)->lod_ost_descs, ost)
581 extern struct kmem_cache *lod_object_kmem;
582 int lod_fld_lookup(const struct lu_env *env, struct lod_device *lod,
583 const struct lu_fid *fid, __u32 *tgt, int *flags);
584 int lod_sub_init_llog(const struct lu_env *env, struct lod_device *lod,
585 struct dt_device *dt);
586 void lod_sub_fini_llog(const struct lu_env *env,
587 struct dt_device *dt, struct task_struct **taskp);
588 int lodname2mdt_index(char *lodname, __u32 *mdt_index);
589 extern void target_recovery_fini(struct obd_device *obd);
592 void lod_getref(struct lod_tgt_descs *ltd);
593 void lod_putref(struct lod_device *lod, struct lod_tgt_descs *ltd);
594 int lod_add_device(const struct lu_env *env, struct lod_device *lod,
595 char *osp, unsigned index, unsigned gen, int mdt_index,
596 char *type, int active);
597 int lod_del_device(const struct lu_env *env, struct lod_device *lod,
598 struct lod_tgt_descs *ltd, char *osp, unsigned int idx,
600 int validate_lod_and_idx(struct lod_device *lod, __u32 idx);
601 int lod_fini_tgt(const struct lu_env *env, struct lod_device *lod,
602 struct lod_tgt_descs *ltd);
603 int lod_striping_load(const struct lu_env *env, struct lod_object *lo);
604 int lod_striping_reload(const struct lu_env *env, struct lod_object *lo,
605 const struct lu_buf *buf, enum layout_verify_flags lvf);
606 void lod_dom_stripesize_recalc(struct lod_device *d);
608 int lod_get_ea(const struct lu_env *env, struct lod_object *lo,
611 lod_get_lov_ea(const struct lu_env *env, struct lod_object *lo)
613 return lod_get_ea(env, lo, XATTR_NAME_LOV);
617 lod_get_lmv_ea(const struct lu_env *env, struct lod_object *lo)
619 return lod_get_ea(env, lo, XATTR_NAME_LMV);
623 lod_get_default_lmv_ea(const struct lu_env *env, struct lod_object *lo)
625 return lod_get_ea(env, lo, XATTR_NAME_DEFAULT_LMV);
629 lod_comp_set_init(struct lod_layout_component *entry)
631 entry->llc_flags |= LCME_FL_INIT;
635 lod_comp_unset_init(struct lod_layout_component *entry)
637 entry->llc_flags &= ~LCME_FL_INIT;
641 lod_comp_inited(const struct lod_layout_component *entry)
643 return entry->llc_flags & LCME_FL_INIT;
647 * For a PFL file, some of its component could be un-instantiated, so
648 * that their lov_ost_data_v1 array is not needed, we'd use this function
649 * to reduce the LOVEA buffer size.
651 * Note: if llc_ostlist contains value, we'd need lov_ost_data_v1 array to
652 * save the specified OST index list.
655 lod_comp_shrink_stripe_count(struct lod_layout_component *lod_comp,
659 * Need one lov_ost_data_v1 to store invalid ost_idx, please refer to
660 * lod_parse_striping()
662 if (!lod_comp_inited(lod_comp) && lod_comp->llc_ostlist.op_count == 0)
666 void lod_fix_desc(struct lov_desc *desc);
667 void lod_fix_desc_qos_maxage(__u32 *val);
668 void lod_fix_desc_pattern(__u32 *val);
669 void lod_fix_desc_stripe_count(__u32 *val);
670 void lod_fix_desc_stripe_size(__u64 *val);
671 void lod_fix_lmv_desc_pattern(__u32 *val);
672 int lod_pools_init(struct lod_device *m, struct lustre_cfg *cfg);
673 int lod_pools_fini(struct lod_device *m);
674 int lod_parse_striping(const struct lu_env *env, struct lod_object *mo,
675 const struct lu_buf *buf, enum layout_verify_flags lvf);
676 int lod_parse_dir_striping(const struct lu_env *env, struct lod_object *lo,
677 const struct lu_buf *buf);
678 int lod_initialize_objects(const struct lu_env *env, struct lod_object *mo,
679 struct lov_ost_data_v1 *objs, int index);
680 int lod_verify_striping(const struct lu_env *env, struct lod_device *d,
681 struct lod_object *lo, const struct lu_buf *buf,
683 int lod_generate_lovea(const struct lu_env *env, struct lod_object *lo,
684 struct lov_mds_md *lmm, int *lmm_size, bool is_dir);
685 int lod_ea_store_resize(struct lod_thread_info *info, size_t size);
686 int lod_def_striping_comp_resize(struct lod_default_striping *lds, __u16 count);
687 void lod_free_def_comp_entries(struct lod_default_striping *lds);
688 void lod_free_comp_entries(struct lod_object *lo);
689 int lod_alloc_comp_entries(struct lod_object *lo, int mirror_cnt, int comp_cnt);
690 int lod_fill_mirrors(struct lod_object *lo);
693 struct pool_desc *lod_find_pool(struct lod_device *lod, char *poolname);
694 void lod_pool_putref(struct pool_desc *pool);
695 int lod_pool_del(struct obd_device *obd, char *poolname);
696 int lod_check_index_in_pool(__u32 idx, struct pool_desc *pool);
697 int lod_pool_new(struct obd_device *obd, char *poolname);
698 int lod_pool_add(struct obd_device *obd, char *poolname, char *ostname);
699 int lod_pool_remove(struct obd_device *obd, char *poolname, char *ostname);
701 struct lod_obj_stripe_cb_data;
702 typedef int (*lod_obj_stripe_cb_t)(const struct lu_env *env,
703 struct lod_object *lo, struct dt_object *dt,
705 int comp_idx, int stripe_idx,
706 struct lod_obj_stripe_cb_data *data);
707 typedef bool (*lod_obj_comp_skip_cb_t)(const struct lu_env *env,
708 struct lod_object *lo, int comp_idx,
709 struct lod_obj_stripe_cb_data *data);
710 typedef int (*lod_obj_comp_cb_t)(const struct lu_env *env,
711 struct lod_object *lo, int comp_idx,
712 struct lod_obj_stripe_cb_data *data);
713 struct lod_obj_stripe_cb_data {
715 const struct lu_attr *locd_attr;
717 const struct lu_buf *locd_buf;
719 lod_obj_stripe_cb_t locd_stripe_cb;
720 lod_obj_comp_skip_cb_t locd_comp_skip_cb;
721 lod_obj_comp_cb_t locd_comp_cb;
726 int lod_mdt_alloc_qos(const struct lu_env *env, struct lod_object *lo,
727 struct dt_object **stripes, u32 stripe_idx,
729 int lod_mdt_alloc_rr(const struct lu_env *env, struct lod_object *lo,
730 struct dt_object **stripes, u32 stripe_idx,
732 int lod_prepare_create(const struct lu_env *env, struct lod_object *lo,
733 struct lu_attr *attr, const struct lu_buf *buf,
735 int lod_use_defined_striping(const struct lu_env *, struct lod_object *,
736 const struct lu_buf *);
737 int lod_qos_parse_config(const struct lu_env *env, struct lod_object *lo,
738 const struct lu_buf *buf);
739 int lod_qos_prep_create(const struct lu_env *env, struct lod_object *lo,
740 struct lu_attr *attr, struct thandle *th,
741 int comp_idx, __u64 reserve);
742 __u16 lod_comp_entry_stripe_count(struct lod_object *lo,
743 int comp_idx, bool is_dir);
744 __u16 lod_get_stripe_count(struct lod_device *lod, struct lod_object *lo,
745 int comp_idx, __u16 stripe_count, bool overstriping);
746 void lod_qos_statfs_update(const struct lu_env *env, struct lod_device *lod,
747 struct lu_tgt_descs *ltd);
750 int lod_procfs_init(struct lod_device *lod);
751 void lod_procfs_fini(struct lod_device *lod);
754 extern const struct dt_object_operations lod_obj_ops;
755 extern const struct lu_object_operations lod_lu_obj_ops;
757 int lod_load_lmv_shards(const struct lu_env *env, struct lod_object *lo,
758 struct lu_buf *buf, bool resize);
759 int lod_declare_striped_create(const struct lu_env *env, struct dt_object *dt,
760 struct lu_attr *attr,
761 const struct lu_buf *lovea, struct thandle *th);
762 int lod_striped_create(const struct lu_env *env, struct dt_object *dt,
763 struct lu_attr *attr, struct dt_object_format *dof,
765 int lod_alloc_foreign_lov(struct lod_object *lo, size_t size);
766 void lod_free_foreign_lov(struct lod_object *lo);
767 void lod_striping_free_nolock(const struct lu_env *env, struct lod_object *lo);
768 void lod_striping_free(const struct lu_env *env, struct lod_object *lo);
770 int lod_obj_for_each_stripe(const struct lu_env *env, struct lod_object *lo,
772 struct lod_obj_stripe_cb_data *data);
773 int lod_comp_copy_ost_lists(struct lod_layout_component *lod_comp,
774 struct lov_user_md_v3 *v3);
775 void lod_adjust_stripe_size(struct lod_layout_component *comp,
776 __u32 def_stripe_size);
778 /* lod_sub_object.c */
779 struct thandle *lod_sub_get_thandle(const struct lu_env *env,
781 const struct dt_object *sub_obj,
782 bool *record_update);
783 int lod_sub_declare_create(const struct lu_env *env, struct dt_object *dt,
784 struct lu_attr *attr,
785 struct dt_allocation_hint *hint,
786 struct dt_object_format *dof, struct thandle *th);
787 int lod_sub_create(const struct lu_env *env, struct dt_object *dt,
788 struct lu_attr *attr, struct dt_allocation_hint *hint,
789 struct dt_object_format *dof, struct thandle *th);
790 int lod_sub_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
792 int lod_sub_ref_add(const struct lu_env *env, struct dt_object *dt,
794 int lod_sub_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
796 int lod_sub_ref_del(const struct lu_env *env, struct dt_object *dt,
798 int lod_sub_declare_destroy(const struct lu_env *env, struct dt_object *dt,
800 int lod_sub_destroy(const struct lu_env *env, struct dt_object *dt,
802 int lod_sub_declare_insert(const struct lu_env *env, struct dt_object *dt,
803 const struct dt_rec *rec, const struct dt_key *key,
805 int lod_sub_insert(const struct lu_env *env, struct dt_object *dt,
806 const struct dt_rec *rec, const struct dt_key *key,
808 int lod_sub_declare_delete(const struct lu_env *env, struct dt_object *dt,
809 const struct dt_key *key, struct thandle *th);
810 int lod_sub_delete(const struct lu_env *env, struct dt_object *dt,
811 const struct dt_key *name, struct thandle *th);
812 int lod_sub_declare_xattr_set(const struct lu_env *env, struct dt_object *dt,
813 const struct lu_buf *buf, const char *name,
814 int fl, struct thandle *th);
815 int lod_sub_xattr_set(const struct lu_env *env, struct dt_object *dt,
816 const struct lu_buf *buf, const char *name, int fl,
818 int lod_sub_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
819 const struct lu_attr *attr, struct thandle *th);
820 int lod_sub_attr_set(const struct lu_env *env, struct dt_object *dt,
821 const struct lu_attr *attr, struct thandle *th);
822 int lod_sub_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
823 const char *name, struct thandle *th);
824 int lod_sub_xattr_del(const struct lu_env *env, struct dt_object *dt,
825 const char *name, struct thandle *th);
826 int lod_sub_declare_write(const struct lu_env *env, struct dt_object *dt,
827 const struct lu_buf *buf, loff_t pos,
829 ssize_t lod_sub_write(const struct lu_env *env, struct dt_object *dt,
830 const struct lu_buf *buf, loff_t *pos,
832 int lod_sub_declare_punch(const struct lu_env *env, struct dt_object *dt,
833 __u64 start, __u64 end, struct thandle *th);
834 int lod_sub_punch(const struct lu_env *env, struct dt_object *dt,
835 __u64 start, __u64 end, struct thandle *th);
837 int lod_sub_prep_llog(const struct lu_env *env, struct lod_device *lod,
838 struct dt_device *dt, int index);
839 void lod_check_and_spill_pool(const struct lu_env *env, struct lod_device *lod,
841 void lod_spill_target_refresh(const struct lu_env *env, struct lod_device *lod,
842 struct pool_desc *pool);
843 extern struct lprocfs_vars lprocfs_lod_spill_vars[];