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*/
74 struct dentry *pool_debugfs;
78 int lod_pool_hash_init(struct rhashtable *tbl);
79 void lod_pool_hash_destroy(struct rhashtable *tbl);
80 bool lod_pool_exists(struct lod_device *lod, char *poolname);
82 #define pool_tgt_count(p) ((p)->pool_obds.op_count)
83 #define pool_tgt_array(p) ((p)->pool_obds.op_array)
84 #define pool_tgt_rw_sem(p) ((p)->pool_obds.op_rw_sem)
86 #define lod_tgt_desc lu_tgt_desc
87 #define lod_tgt_descs lu_tgt_descs
89 #define OST_TGT(lod, index) LTD_TGT(&lod->lod_ost_descs, index)
90 #define MDT_TGT(lod, index) LTD_TGT(&lod->lod_mdt_descs, index)
92 struct lod_avoid_guide {
93 /* ids of OSSs avoid guidance */
94 __u32 *lag_oss_avoid_array;
95 /* number of filled array items */
96 unsigned int lag_oaa_count;
97 /* number of allocated array items */
98 unsigned int lag_oaa_size;
99 /* bitmap of OSTs avoid guidance */
100 unsigned long *lag_ost_avoid_bitmap;
101 u32 lag_ost_avoid_size;
102 /* how many OSTs are available for alloc */
106 #define LOD_DOM_MIN_SIZE_KB (LOV_MIN_STRIPE_SIZE >> 10)
107 #define LOD_DOM_SFS_MAX_AGE 10
110 struct dt_device lod_dt_dev;
111 struct obd_export *lod_child_exp;
112 struct dt_device *lod_child;
113 struct lprocfs_stats *lod_stats;
114 spinlock_t lod_connects_lock;
116 unsigned int lod_recovery_completed:1,
119 lod_child_got_update_log:1,
120 lod_dist_txn_check_space:1;
122 /* protect ld_active_tgt_count, ltd_active and lod_md_root */
125 /* Description of OST */
126 struct lod_tgt_descs lod_ost_descs;
127 /* Description of MDT */
128 struct lod_tgt_descs lod_mdt_descs;
130 /* Recovery thread for lod_child */
131 struct task_struct *lod_child_recovery_task;
133 /* maximum EA size underlied OSD may have */
134 unsigned int lod_osd_max_easize;
135 /* maximum size of MDT stripe for Data-on-MDT files. */
136 unsigned int lod_dom_stripesize_max_kb;
137 /* current DOM default stripe size adjusted by threshold */
138 unsigned int lod_dom_stripesize_cur_kb;
139 /* Threshold at which DOM default stripe will start decreasing */
140 __u64 lod_dom_threshold_free_mb;
142 /* Local OSD statfs cache */
143 spinlock_t lod_lsfs_lock;
144 time64_t lod_lsfs_age;
145 __u64 lod_lsfs_total_mb;
146 __u64 lod_lsfs_free_mb;
150 struct rhashtable lod_pools_hash_body; /* used for key access */
151 struct list_head lod_pool_list; /* used for sequential access */
152 struct proc_dir_entry *lod_pool_proc_entry;
153 struct proc_dir_entry *lod_spill_proc_entry;
155 enum lustre_sec_part lod_sp_me;
157 struct proc_dir_entry *lod_symlink;
158 struct dentry *lod_debugfs;
159 struct dentry *lod_pool_debugfs;
161 /* ROOT object, used to fetch FS default striping */
162 struct lod_object *lod_md_root;
164 /* max stripe count if stripe count is set to -1. 0 means unlimited */
165 unsigned int lod_max_stripecount;
166 unsigned int lod_max_mdt_stripecount;
169 #define lod_ost_bitmap lod_ost_descs.ltd_tgt_bitmap
170 #define lod_ost_count lod_ost_descs.ltd_lov_desc.ld_tgt_count
171 #define lod_ost_active_count lod_ost_descs.ltd_lov_desc.ld_active_tgt_count
172 #define lod_remote_mdt_count lod_mdt_descs.ltd_lmv_desc.ld_tgt_count
174 struct lod_layout_component {
175 struct lu_extent llc_extent;
178 __u32 llc_stripe_size;
180 __u16 llc_layout_gen;
181 __u16 llc_stripe_offset;
182 __u16 llc_stripe_count;
183 __u16 llc_stripes_allocated;
184 __u64 llc_timestamp; /* snapshot time */
186 /* ost list specified with LOV_USER_MAGIC_SPECIFIC lum */
187 struct lu_tgt_pool llc_ostlist;
188 struct dt_object **llc_stripe;
189 __u32 *llc_ost_indices;
192 struct lod_default_striping {
194 /* current layout component count */
195 __u16 lds_def_comp_cnt;
196 __u16 lds_def_mirror_cnt;
197 /* the largest comp count ever used */
198 __u32 lds_def_comp_size_cnt;
199 struct lod_layout_component *lds_def_comp_entries;
201 __u32 lds_dir_def_stripe_count;
202 __u32 lds_dir_def_stripe_offset;
203 __u32 lds_dir_def_hash_type;
204 __u8 lds_dir_def_max_inherit;
205 __u8 lds_dir_def_max_inherit_rr;
206 /* default file striping flags (LOV) */
207 __u32 lds_def_striping_set:1,
208 lds_def_striping_is_composite:1,
209 /* default dir striping flags (LMV) */
210 lds_dir_def_striping_set:1;
213 enum layout_verify_flags {
214 LVF_ALL_STALE = BIT(0), /* check not all stale mirrors */
217 struct lod_mirror_entry {
223 __u16 lme_preference;
224 /* start,end index of this mirror in ldo_comp_entries */
230 /* common fields for both files and directories */
231 struct dt_object ldo_obj;
232 struct mutex ldo_layout_mutex;
233 /* foreign file/directory */
234 __u32 ldo_is_foreign:1;
236 /* file stripe (LOV) */
238 __u32 ldo_layout_gen;
239 /* Layout component count for a regular file.
240 * It equals to 1 for non-composite layout. */
242 /* Layout mirror count for a PFLR file.
243 * It's 0 for files with non-composite layout. */
244 __u16 ldo_mirror_count;
245 struct lod_mirror_entry *ldo_mirrors;
246 __u32 ldo_is_composite:1,
250 /* directory stripe (LMV) */
252 /* Slave stripe count for striped directory. */
253 __u16 ldo_dir_stripe_count;
254 /* How many stripes allocated for a striped directory */
255 __u16 ldo_dir_stripes_allocated;
256 __u32 ldo_dir_stripe_offset;
257 __u32 ldo_dir_hash_type;
258 __u32 ldo_dir_migrate_offset;
259 __u32 ldo_dir_migrate_hash;
260 __u32 ldo_dir_layout_version;
261 /* Is a slave stripe of striped directory? */
262 __u32 ldo_dir_slave_stripe:1,
264 /* the stripe has been loaded */
265 ldo_dir_stripe_loaded:1;
267 * This default LMV is parent default LMV, which will be
268 * used in child creation, and it's not cached, so this
269 * field is invalid after create, make sure it's used by
270 * lod_dir_striping_create_internal() only.
272 struct lod_default_striping *ldo_def_striping;
277 /* foreign/raw format LOV */
278 char *ldo_foreign_lov;
279 size_t ldo_foreign_lov_size;
282 /* foreign/raw format LMV */
283 char *ldo_foreign_lmv;
284 size_t ldo_foreign_lmv_size;
287 /* file stripe (LOV) */
288 struct lod_layout_component *ldo_comp_entries;
289 /* slave stripes of striped directory (LMV) */
290 struct dt_object **ldo_stripe;
295 #define ldo_dir_split_offset ldo_dir_migrate_offset
296 #define ldo_dir_split_hash ldo_dir_migrate_hash
298 #define lod_foreach_mirror_comp(comp, lo, mirror_idx) \
299 for (comp = &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_start]; \
300 comp <= &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_end]; \
303 static inline bool lod_is_flr(const struct lod_object *lo)
305 if (!lo->ldo_is_composite)
308 return (lo->ldo_flr_state & LCM_FL_FLR_MASK) != LCM_FL_NONE;
311 static inline bool lod_is_splitting(const struct lod_object *lo)
313 return lmv_hash_is_splitting(lo->ldo_dir_hash_type);
316 static inline bool lod_is_migrating(const struct lod_object *lo)
318 return lmv_hash_is_migrating(lo->ldo_dir_hash_type);
321 static inline bool lod_is_layout_changing(const struct lod_object *lo)
323 return lmv_hash_is_layout_changing(lo->ldo_dir_hash_type);
326 static inline int lod_set_pool(char **pool, const char *new_pool)
330 if (*pool == new_pool)
334 len = strlen(*pool) + 1;
335 OBD_FREE(*pool, len);
338 if (new_pool != NULL) {
339 len = strlen(new_pool) + 1;
340 OBD_ALLOC(*pool, len);
343 strlcpy(*pool, new_pool, len);
348 static inline int lod_obj_set_pool(struct lod_object *lo, int i,
349 const char *new_pool)
351 return lod_set_pool(&lo->ldo_comp_entries[i].llc_pool, new_pool);
355 * Create new layout generation.
357 * The only requirement for layout generation is that it changes when
358 * the layout is modified, so a circular counter is sufficient for the
359 * low rate of layout modifications.
361 * Layout generation is also used to generate unique component ID.
362 * To detect generation overflow, we preserve the highest bit of the
363 * generation when it wrapped.
365 static inline void lod_obj_inc_layout_gen(struct lod_object *lo)
367 __u32 preserve = lo->ldo_layout_gen & ~LCME_ID_MASK;
368 lo->ldo_layout_gen++;
369 lo->ldo_layout_gen |= preserve;
370 /* Zero is not a valid generation */
371 if (unlikely((lo->ldo_layout_gen & LCME_ID_MASK) == 0)) {
372 lo->ldo_layout_gen++;
373 lo->ldo_layout_gen &= ~LU_LAYOUT_RESYNC;
378 struct dt_object *lit_obj; /* object from the layer below */
379 /* stripe offset of iteration */
380 __u32 lit_stripe_index;
382 struct dt_it *lit_it; /* iterator from the layer below */
385 struct lod_thread_info {
386 /* per-thread buffer for LOV EA, may be vmalloc'd */
388 __u32 lti_ea_store_size;
389 /* per-thread buffer for LMV EA */
390 struct lu_buf lti_buf;
391 struct ost_id lti_ostid;
392 struct lu_fid lti_fid;
393 struct obd_statfs lti_osfs;
394 struct lu_attr lti_attr;
395 struct lod_it lti_it;
396 struct ldlm_res_id lti_res_id;
397 /* used to hold lu_dirent, sizeof(struct lu_dirent) + NAME_MAX */
398 char lti_key[sizeof(struct lu_dirent) +
400 struct dt_object_format lti_format;
401 struct lu_name lti_name;
402 struct lu_buf lti_linkea_buf;
403 struct dt_insert_rec lti_dt_rec;
404 struct llog_catid lti_cid;
405 struct llog_cookie lti_cookie;
406 struct lustre_cfg lti_lustre_cfg;
407 /* used to store parent default striping in create */
408 struct lod_default_striping lti_def_striping;
409 struct filter_fid lti_ff;
411 size_t lti_comp_size;
413 struct lu_attr lti_layout_attr;
414 /* object allocation avoid guide info */
415 struct lod_avoid_guide lti_avoid;
416 union lmv_mds_md lti_lmv;
417 struct dt_allocation_hint lti_ah;
420 extern const struct lu_device_operations lod_lu_ops;
422 static inline int lu_device_is_lod(struct lu_device *d)
424 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &lod_lu_ops);
427 static inline struct lod_device* lu2lod_dev(struct lu_device *d)
429 LASSERT(lu_device_is_lod(d));
430 return container_of_safe(d, struct lod_device, lod_dt_dev.dd_lu_dev);
433 static inline struct lu_device *lod2lu_dev(struct lod_device *d)
435 return &d->lod_dt_dev.dd_lu_dev;
438 static inline struct obd_device *lod2obd(struct lod_device *d)
440 return d->lod_dt_dev.dd_lu_dev.ld_obd;
443 static inline struct lod_device *dt2lod_dev(struct dt_device *d)
445 LASSERT(lu_device_is_lod(&d->dd_lu_dev));
446 return container_of(d, struct lod_device, lod_dt_dev);
449 static inline struct lod_object *lu2lod_obj(struct lu_object *o)
451 LASSERT(ergo(o != NULL, lu_device_is_lod(o->lo_dev)));
452 return container_of_safe(o, struct lod_object, ldo_obj.do_lu);
455 static inline struct lu_object *lod2lu_obj(struct lod_object *obj)
457 return &obj->ldo_obj.do_lu;
460 static inline const struct lu_fid *lod_object_fid(struct lod_object *obj)
462 return lu_object_fid(lod2lu_obj(obj));
465 static inline struct lod_object *lod_obj(const struct lu_object *o)
467 LASSERT(lu_device_is_lod(o->lo_dev));
468 return container_of(o, struct lod_object, ldo_obj.do_lu);
471 static inline struct lod_object *lod_dt_obj(const struct dt_object *d)
473 return lod_obj(&d->do_lu);
476 static inline struct dt_object* lod_object_child(struct lod_object *o)
478 return container_of(lu_object_next(lod2lu_obj(o)),
479 struct dt_object, do_lu);
482 static inline bool lod_obj_is_striped(struct dt_object *dt)
484 struct lod_object *lo = lod_dt_obj(dt);
488 if (!dt_object_exists(dt_object_child(dt)))
491 mutex_lock(&lo->ldo_layout_mutex);
493 if (S_ISDIR(dt->do_lu.lo_header->loh_attr)) {
494 rc = lo->ldo_dir_stripe_count != 0;
495 } else if (lo->ldo_is_foreign) {
498 for (i = 0; i < lo->ldo_comp_cnt; i++) {
499 if (lo->ldo_comp_entries[i].llc_stripe == NULL)
501 LASSERT(lo->ldo_comp_entries[i].llc_stripe_count > 0);
507 mutex_unlock(&lo->ldo_layout_mutex);
511 extern struct lu_context_key lod_thread_key;
513 static inline struct lod_thread_info *lod_env_info(const struct lu_env *env)
515 struct lod_thread_info *info;
516 info = lu_context_key_get(&env->le_ctx, &lod_thread_key);
521 static inline struct lu_name *
522 lod_name_get(const struct lu_env *env, const void *area, int len)
524 struct lu_name *lname;
526 lname = &lod_env_info(env)->lti_name;
527 lname->ln_name = area;
528 lname->ln_namelen = len;
532 static inline struct lod_default_striping *
533 lod_lds_buf_get(const struct lu_env *env)
535 struct lod_thread_info *info = lod_env_info(env);
537 info->lti_def_striping.lds_def_striping_set = 0;
538 info->lti_def_striping.lds_dir_def_striping_set = 0;
539 return &info->lti_def_striping;
542 static inline void lod_layout_get_pool(struct lod_layout_component *entries,
543 int count, char *pool, int len)
547 for (i = 0; i < count; i++) {
548 if (entries[i].llc_pool != NULL) {
549 strlcpy(pool, entries[i].llc_pool, len);
555 #define lod_foreach_mdt(lod, mdt) ltd_foreach_tgt(&(lod)->lod_mdt_descs, mdt)
556 #define lod_foreach_ost(lod, ost) ltd_foreach_tgt(&(lod)->lod_ost_descs, ost)
559 extern struct kmem_cache *lod_object_kmem;
560 int lod_fld_lookup(const struct lu_env *env, struct lod_device *lod,
561 const struct lu_fid *fid, __u32 *tgt, int *flags);
562 int lod_sub_init_llog(const struct lu_env *env, struct lod_device *lod,
563 struct dt_device *dt);
564 void lod_sub_fini_llog(const struct lu_env *env,
565 struct dt_device *dt, struct task_struct **taskp);
566 int lodname2mdt_index(char *lodname, __u32 *mdt_index);
567 extern void target_recovery_fini(struct obd_device *obd);
570 void lod_getref(struct lod_tgt_descs *ltd);
571 void lod_putref(struct lod_device *lod, struct lod_tgt_descs *ltd);
572 int lod_add_device(const struct lu_env *env, struct lod_device *lod,
573 char *osp, unsigned index, unsigned gen, int mdt_index,
574 char *type, int active);
575 int lod_del_device(const struct lu_env *env, struct lod_device *lod,
576 struct lod_tgt_descs *ltd, char *osp, unsigned int idx,
578 int validate_lod_and_idx(struct lod_device *lod, __u32 idx);
579 int lod_fini_tgt(const struct lu_env *env, struct lod_device *lod,
580 struct lod_tgt_descs *ltd);
581 int lod_striping_load(const struct lu_env *env, struct lod_object *lo);
582 int lod_striping_reload(const struct lu_env *env, struct lod_object *lo,
583 const struct lu_buf *buf, enum layout_verify_flags lvf);
584 void lod_dom_stripesize_recalc(struct lod_device *d);
586 int lod_get_ea(const struct lu_env *env, struct lod_object *lo,
589 lod_get_lov_ea(const struct lu_env *env, struct lod_object *lo)
591 return lod_get_ea(env, lo, XATTR_NAME_LOV);
595 lod_get_lmv_ea(const struct lu_env *env, struct lod_object *lo)
597 return lod_get_ea(env, lo, XATTR_NAME_LMV);
601 lod_get_default_lmv_ea(const struct lu_env *env, struct lod_object *lo)
603 return lod_get_ea(env, lo, XATTR_NAME_DEFAULT_LMV);
607 lod_comp_set_init(struct lod_layout_component *entry)
609 entry->llc_flags |= LCME_FL_INIT;
613 lod_comp_unset_init(struct lod_layout_component *entry)
615 entry->llc_flags &= ~LCME_FL_INIT;
619 lod_comp_inited(const struct lod_layout_component *entry)
621 return entry->llc_flags & LCME_FL_INIT;
625 * For a PFL file, some of its component could be un-instantiated, so
626 * that their lov_ost_data_v1 array is not needed, we'd use this function
627 * to reduce the LOVEA buffer size.
629 * Note: if llc_ostlist contains value, we'd need lov_ost_data_v1 array to
630 * save the specified OST index list.
633 lod_comp_shrink_stripe_count(struct lod_layout_component *lod_comp,
637 * Need one lov_ost_data_v1 to store invalid ost_idx, please refer to
638 * lod_parse_striping()
640 if (!lod_comp_inited(lod_comp) && lod_comp->llc_ostlist.op_count == 0)
644 void lod_fix_desc(struct lov_desc *desc);
645 void lod_fix_desc_qos_maxage(__u32 *val);
646 void lod_fix_desc_pattern(__u32 *val);
647 void lod_fix_desc_stripe_count(__u32 *val);
648 void lod_fix_desc_stripe_size(__u64 *val);
649 void lod_fix_lmv_desc_pattern(__u32 *val);
650 int lod_pools_init(struct lod_device *m, struct lustre_cfg *cfg);
651 int lod_pools_fini(struct lod_device *m);
652 int lod_parse_striping(const struct lu_env *env, struct lod_object *mo,
653 const struct lu_buf *buf, enum layout_verify_flags lvf);
654 int lod_parse_dir_striping(const struct lu_env *env, struct lod_object *lo,
655 const struct lu_buf *buf);
656 int lod_initialize_objects(const struct lu_env *env, struct lod_object *mo,
657 struct lov_ost_data_v1 *objs, int index);
658 int lod_verify_striping(const struct lu_env *env, struct lod_device *d,
659 struct lod_object *lo, const struct lu_buf *buf,
661 int lod_generate_lovea(const struct lu_env *env, struct lod_object *lo,
662 struct lov_mds_md *lmm, int *lmm_size, bool is_dir);
663 int lod_ea_store_resize(struct lod_thread_info *info, size_t size);
664 int lod_def_striping_comp_resize(struct lod_default_striping *lds, __u16 count);
665 void lod_free_def_comp_entries(struct lod_default_striping *lds);
666 void lod_free_comp_entries(struct lod_object *lo);
667 int lod_alloc_comp_entries(struct lod_object *lo, int mirror_cnt, int comp_cnt);
668 int lod_fill_mirrors(struct lod_object *lo);
671 struct pool_desc *lod_find_pool(struct lod_device *lod, char *poolname);
672 void lod_pool_putref(struct pool_desc *pool);
673 int lod_pool_del(struct obd_device *obd, char *poolname);
674 int lod_check_index_in_pool(__u32 idx, struct pool_desc *pool);
675 int lod_pool_new(struct obd_device *obd, char *poolname);
676 int lod_pool_add(struct obd_device *obd, char *poolname, char *ostname);
677 int lod_pool_remove(struct obd_device *obd, char *poolname, char *ostname);
679 struct lod_obj_stripe_cb_data;
680 typedef int (*lod_obj_stripe_cb_t)(const struct lu_env *env,
681 struct lod_object *lo, struct dt_object *dt,
683 int comp_idx, int stripe_idx,
684 struct lod_obj_stripe_cb_data *data);
685 typedef bool (*lod_obj_comp_skip_cb_t)(const struct lu_env *env,
686 struct lod_object *lo, int comp_idx,
687 struct lod_obj_stripe_cb_data *data);
688 typedef int (*lod_obj_comp_cb_t)(const struct lu_env *env,
689 struct lod_object *lo, int comp_idx,
690 struct lod_obj_stripe_cb_data *data);
691 struct lod_obj_stripe_cb_data {
693 const struct lu_attr *locd_attr;
695 const struct lu_buf *locd_buf;
697 lod_obj_stripe_cb_t locd_stripe_cb;
698 lod_obj_comp_skip_cb_t locd_comp_skip_cb;
699 lod_obj_comp_cb_t locd_comp_cb;
704 int lod_mdt_alloc_qos(const struct lu_env *env, struct lod_object *lo,
705 struct dt_object **stripes, u32 stripe_idx,
707 int lod_mdt_alloc_rr(const struct lu_env *env, struct lod_object *lo,
708 struct dt_object **stripes, u32 stripe_idx,
710 int lod_prepare_create(const struct lu_env *env, struct lod_object *lo,
711 struct lu_attr *attr, const struct lu_buf *buf,
713 int lod_use_defined_striping(const struct lu_env *, struct lod_object *,
714 const struct lu_buf *);
715 int lod_qos_parse_config(const struct lu_env *env, struct lod_object *lo,
716 const struct lu_buf *buf);
717 int lod_qos_prep_create(const struct lu_env *env, struct lod_object *lo,
718 struct lu_attr *attr, struct thandle *th,
719 int comp_idx, __u64 reserve);
720 __u16 lod_comp_entry_stripe_count(struct lod_object *lo,
721 int comp_idx, bool is_dir);
722 __u16 lod_get_stripe_count(struct lod_device *lod, struct lod_object *lo,
723 int comp_idx, __u16 stripe_count, bool overstriping);
724 void lod_qos_statfs_update(const struct lu_env *env, struct lod_device *lod,
725 struct lu_tgt_descs *ltd);
728 int lod_procfs_init(struct lod_device *lod);
729 void lod_procfs_fini(struct lod_device *lod);
732 extern const struct dt_object_operations lod_obj_ops;
733 extern const struct lu_object_operations lod_lu_obj_ops;
735 int lod_load_lmv_shards(const struct lu_env *env, struct lod_object *lo,
736 struct lu_buf *buf, bool resize);
737 int lod_declare_striped_create(const struct lu_env *env, struct dt_object *dt,
738 struct lu_attr *attr,
739 const struct lu_buf *lovea, struct thandle *th);
740 int lod_striped_create(const struct lu_env *env, struct dt_object *dt,
741 struct lu_attr *attr, struct dt_object_format *dof,
743 int lod_alloc_foreign_lov(struct lod_object *lo, size_t size);
744 void lod_free_foreign_lov(struct lod_object *lo);
745 void lod_striping_free_nolock(const struct lu_env *env, struct lod_object *lo);
746 void lod_striping_free(const struct lu_env *env, struct lod_object *lo);
748 int lod_obj_for_each_stripe(const struct lu_env *env, struct lod_object *lo,
750 struct lod_obj_stripe_cb_data *data);
751 int lod_comp_copy_ost_lists(struct lod_layout_component *lod_comp,
752 struct lov_user_md_v3 *v3);
753 void lod_adjust_stripe_size(struct lod_layout_component *comp,
754 __u32 def_stripe_size);
756 /* lod_sub_object.c */
757 struct thandle *lod_sub_get_thandle(const struct lu_env *env,
759 const struct dt_object *sub_obj,
760 bool *record_update);
761 int lod_sub_declare_create(const struct lu_env *env, struct dt_object *dt,
762 struct lu_attr *attr,
763 struct dt_allocation_hint *hint,
764 struct dt_object_format *dof, struct thandle *th);
765 int lod_sub_create(const struct lu_env *env, struct dt_object *dt,
766 struct lu_attr *attr, struct dt_allocation_hint *hint,
767 struct dt_object_format *dof, struct thandle *th);
768 int lod_sub_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
770 int lod_sub_ref_add(const struct lu_env *env, struct dt_object *dt,
772 int lod_sub_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
774 int lod_sub_ref_del(const struct lu_env *env, struct dt_object *dt,
776 int lod_sub_declare_destroy(const struct lu_env *env, struct dt_object *dt,
778 int lod_sub_destroy(const struct lu_env *env, struct dt_object *dt,
780 int lod_sub_declare_insert(const struct lu_env *env, struct dt_object *dt,
781 const struct dt_rec *rec, const struct dt_key *key,
783 int lod_sub_insert(const struct lu_env *env, struct dt_object *dt,
784 const struct dt_rec *rec, const struct dt_key *key,
786 int lod_sub_declare_delete(const struct lu_env *env, struct dt_object *dt,
787 const struct dt_key *key, struct thandle *th);
788 int lod_sub_delete(const struct lu_env *env, struct dt_object *dt,
789 const struct dt_key *name, struct thandle *th);
790 int lod_sub_declare_xattr_set(const struct lu_env *env, struct dt_object *dt,
791 const struct lu_buf *buf, const char *name,
792 int fl, struct thandle *th);
793 int lod_sub_xattr_set(const struct lu_env *env, struct dt_object *dt,
794 const struct lu_buf *buf, const char *name, int fl,
796 int lod_sub_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
797 const struct lu_attr *attr, struct thandle *th);
798 int lod_sub_attr_set(const struct lu_env *env, struct dt_object *dt,
799 const struct lu_attr *attr, struct thandle *th);
800 int lod_sub_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
801 const char *name, struct thandle *th);
802 int lod_sub_xattr_del(const struct lu_env *env, struct dt_object *dt,
803 const char *name, struct thandle *th);
804 int lod_sub_declare_write(const struct lu_env *env, struct dt_object *dt,
805 const struct lu_buf *buf, loff_t pos,
807 ssize_t lod_sub_write(const struct lu_env *env, struct dt_object *dt,
808 const struct lu_buf *buf, loff_t *pos,
810 int lod_sub_declare_punch(const struct lu_env *env, struct dt_object *dt,
811 __u64 start, __u64 end, struct thandle *th);
812 int lod_sub_punch(const struct lu_env *env, struct dt_object *dt,
813 __u64 start, __u64 end, struct thandle *th);
815 int lod_sub_prep_llog(const struct lu_env *env, struct lod_device *lod,
816 struct dt_device *dt, int index);
817 void lod_check_and_spill_pool(const struct lu_env *env, struct lod_device *lod,
819 void lod_spill_target_refresh(const struct lu_env *env, struct lod_device *lod,
820 struct pool_desc *pool);
821 struct pool_desc *lod_pool_find(struct lod_device *lod, char *poolname);
822 int lod_tgt_weights_seq_show(struct seq_file *m, struct lod_device *lod,
823 struct lu_tgt_pool *tgts, bool mdt);
824 int lod_tgt_weights_seq_write(struct seq_file *m, const char __user *buf,
825 size_t count, struct lod_device *lod,
826 struct lu_tgt_pool *tgts, bool is_mdt);
827 extern struct lprocfs_vars lprocfs_lod_spill_vars[];