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))
57 #define LOV_OFFSET_DEFAULT ((__u16)-1)
60 spinlock_t lqr_alloc; /* protect allocation index */
61 __u32 lqr_start_idx; /* start index of new inode */
62 __u32 lqr_offset_idx;/* aliasing for start_idx */
63 int lqr_start_count;/* reseed counter */
64 struct ost_pool lqr_pool; /* round-robin optimized list */
65 unsigned long lqr_dirty:1; /* recalc round-robin list */
69 char pool_name[LOV_MAXPOOLNAME + 1];
70 struct ost_pool pool_obds; /* pool members */
71 atomic_t pool_refcount;
72 struct lod_qos_rr pool_rr;
73 struct hlist_node pool_hash; /* access by poolname */
74 struct list_head pool_list;
75 struct proc_dir_entry *pool_proc_entry;
76 struct obd_device *pool_lobd; /* owner */
79 #define pool_tgt_count(p) ((p)->pool_obds.op_count)
80 #define pool_tgt_array(p) ((p)->pool_obds.op_array)
81 #define pool_tgt_rw_sem(p) ((p)->pool_obds.op_rw_sem)
84 struct list_head lq_oss_list;
85 struct rw_semaphore lq_rw_sem;
86 __u32 lq_active_oss_count;
87 unsigned int lq_prio_free; /* priority for free space */
88 unsigned int lq_threshold_rr;/* priority for rr */
89 struct lod_qos_rr lq_rr; /* round robin qos data */
90 bool lq_dirty:1, /* recalc qos data */
91 lq_same_space:1,/* the ost's all have approx.
92 the same space avail */
93 lq_reset:1; /* zero current penalties */
97 struct obd_uuid lqo_uuid; /* ptlrpc's c_remote_uuid */
98 struct list_head lqo_oss_list; /* link to lov_qos */
99 __u64 lqo_bavail; /* total bytes avail on OSS */
100 __u64 lqo_penalty; /* current penalty */
101 __u64 lqo_penalty_per_obj; /* penalty decrease
103 time_t lqo_used; /* last used time, seconds */
104 __u32 lqo_ost_count; /* number of osts on this oss */
108 struct lod_qos_oss *ltq_oss; /* oss info */
109 __u64 ltq_penalty; /* current penalty */
110 __u64 ltq_penalty_per_obj; /* penalty decrease
112 __u64 ltq_weight; /* net weighting */
113 time_t ltq_used; /* last used time, seconds */
114 bool ltq_usable:1; /* usable for striping */
117 struct lod_tgt_desc {
118 struct dt_device *ltd_tgt;
119 struct list_head ltd_kill;
120 struct obd_export *ltd_exp;
121 struct obd_uuid ltd_uuid;
124 struct ltd_qos ltd_qos; /* qos info per target */
125 struct obd_statfs ltd_statfs;
126 struct ptlrpc_thread *ltd_recovery_thread;
127 unsigned long ltd_active:1,/* is this target up for requests */
128 ltd_activate:1,/* should target be activated */
129 ltd_reap:1, /* should this target be deleted */
130 ltd_got_update_log:1, /* Already got update log */
131 ltd_connecting:1; /* target is connecting */
134 #define TGT_PTRS 256 /* number of pointers at 1st level */
135 #define TGT_PTRS_PER_BLOCK 256 /* number of pointers at 2nd level */
137 struct lod_tgt_desc_idx {
138 struct lod_tgt_desc *ldi_tgt[TGT_PTRS_PER_BLOCK];
141 #define LTD_TGT(ltd, index) \
142 ((ltd)->ltd_tgt_idx[(index) / \
143 TGT_PTRS_PER_BLOCK]->ldi_tgt[(index) % TGT_PTRS_PER_BLOCK])
145 #define OST_TGT(lod, index) LTD_TGT(&lod->lod_ost_descs, index)
146 #define MDT_TGT(lod, index) LTD_TGT(&lod->lod_mdt_descs, index)
147 struct lod_tgt_descs {
148 /* list of known TGTs */
149 struct lod_tgt_desc_idx *ltd_tgt_idx[TGT_PTRS];
150 /* Size of the lod_tgts array, granted to be a power of 2 */
152 /* number of registered TGTs */
154 /* bitmap of TGTs available */
155 struct cfs_bitmap *ltd_tgt_bitmap;
156 /* TGTs scheduled to be deleted */
158 /* Table refcount used for delayed deletion */
160 /* mutex to serialize concurrent updates to the tgt table */
161 struct mutex ltd_mutex;
162 /* read/write semaphore used for array relocation */
163 struct rw_semaphore ltd_rw_sem;
167 struct dt_device lod_dt_dev;
168 struct obd_export *lod_child_exp;
169 struct dt_device *lod_child;
170 struct lprocfs_stats *lod_stats;
171 spinlock_t lod_connects_lock;
173 unsigned int lod_recovery_completed:1,
176 lod_child_got_update_log:1;
178 /* lov settings descriptor storing static information */
179 struct lov_desc lod_desc;
181 /* protect ld_active_tgt_count, ltd_active and lod_md_root */
184 /* Description of OST */
185 struct lod_tgt_descs lod_ost_descs;
186 /* Description of MDT */
187 struct lod_tgt_descs lod_mdt_descs;
189 /* Recovery thread for lod_child */
190 struct ptlrpc_thread lod_child_recovery_thread;
192 /* maximum EA size underlied OSD may have */
193 unsigned int lod_osd_max_easize;
194 /* maximum size of MDT stripe for Data-on-MDT files. */
195 unsigned int lod_dom_max_stripesize;
197 /*FIXME: When QOS and pool is implemented for MDT, probably these
198 * structure should be moved to lod_tgt_descs as well.
200 /* QoS info per LOD */
201 struct lod_qos lod_qos; /* qos info per lod */
204 struct ost_pool lod_pool_info; /* all OSTs in a packed array */
206 struct cfs_hash *lod_pools_hash_body; /* used for key access */
207 struct list_head lod_pool_list; /* used for sequential access */
208 struct proc_dir_entry *lod_pool_proc_entry;
210 enum lustre_sec_part lod_sp_me;
212 struct proc_dir_entry *lod_symlink;
213 struct dentry *lod_debugfs;
215 /* ROOT object, used to fetch FS default striping */
216 struct lod_object *lod_md_root;
219 #define lod_osts lod_ost_descs.ltd_tgts
220 #define lod_ost_bitmap lod_ost_descs.ltd_tgt_bitmap
221 #define lod_ostnr lod_ost_descs.ltd_tgtnr
222 #define lod_osts_size lod_ost_descs.ltd_tgts_size
223 #define ltd_ost ltd_tgt
224 #define lod_ost_desc lod_tgt_desc
226 #define lod_mdts lod_mdt_descs.ltd_tgts
227 #define lod_mdt_bitmap lod_mdt_descs.ltd_tgt_bitmap
228 #define lod_remote_mdt_count lod_mdt_descs.ltd_tgtnr
229 #define lod_mdts_size lod_mdt_descs.ltd_tgts_size
230 #define ltd_mdt ltd_tgt
231 #define lod_mdt_desc lod_tgt_desc
233 struct lod_layout_component {
234 struct lu_extent llc_extent;
237 __u32 llc_stripe_size;
239 __u16 llc_layout_gen;
240 __u16 llc_stripe_offset;
241 __u16 llc_stripe_count;
242 __u16 llc_stripes_allocated;
244 /* ost list specified with LOV_USER_MAGIC_SPECIFIC lum */
245 struct ost_pool llc_ostlist;
246 struct dt_object **llc_stripe;
249 struct lod_default_striping {
251 /* current layout component count */
252 __u16 lds_def_comp_cnt;
253 __u16 lds_def_mirror_cnt;
254 /* the largest comp count ever used */
255 __u32 lds_def_comp_size_cnt;
256 struct lod_layout_component *lds_def_comp_entries;
258 __u32 lds_dir_def_stripe_count;
259 __u32 lds_dir_def_stripe_offset;
260 __u32 lds_dir_def_hash_type;
261 /* default file striping flags (LOV) */
262 __u32 lds_def_striping_set:1,
263 lds_def_striping_is_composite:1,
264 /* default dir striping flags (LMV) */
265 lds_dir_def_striping_set:1;
268 struct lod_mirror_entry {
273 /* start,end index of this mirror in ldo_comp_entries */
279 /* common fields for both files and directories */
280 struct dt_object ldo_obj;
282 /* file stripe (LOV) */
284 __u32 ldo_layout_gen;
285 /* Layout component count for a regular file.
286 * It equals to 1 for non-composite layout. */
288 /* Layout mirror count for a PFLR file.
289 * It's 0 for files with non-composite layout. */
290 __u16 ldo_mirror_count;
291 struct lod_mirror_entry *ldo_mirrors;
292 __u32 ldo_is_composite:1,
296 /* directory stripe (LMV) */
298 /* Slave stripe count for striped directory. */
299 __u16 ldo_dir_stripe_count;
300 /* How many stripes allocated for a striped directory */
301 __u16 ldo_dir_stripes_allocated;
302 __u32 ldo_dir_stripe_offset;
303 __u32 ldo_dir_hash_type;
304 /* Is a slave stripe of striped directory? */
305 __u32 ldo_dir_slave_stripe:1,
307 /* the stripe has been loaded */
308 ldo_dir_stripe_loaded:1;
310 * default striping is not cached, so this field is
311 * invalid after create, make sure it's used by
312 * lod_dir_striping_create_internal() only.
314 struct lod_default_striping *ldo_def_striping;
317 /* file stripe (LOV) */
318 struct lod_layout_component *ldo_comp_entries;
319 /* slave stripes of striped directory (LMV) */
320 struct dt_object **ldo_stripe;
323 static inline int lod_set_pool(char **pool, const char *new_pool)
327 if (*pool == new_pool)
331 len = strlen(*pool) + 1;
332 OBD_FREE(*pool, len);
335 if (new_pool != NULL) {
336 len = strlen(new_pool) + 1;
337 OBD_ALLOC(*pool, len);
340 strlcpy(*pool, new_pool, len);
345 static inline int lod_set_def_pool(struct lod_default_striping *lds,
346 int i, const char *new_pool)
348 return lod_set_pool(&lds->lds_def_comp_entries[i].llc_pool, new_pool);
351 static inline int lod_obj_set_pool(struct lod_object *lo, int i,
352 const char *new_pool)
354 return lod_set_pool(&lo->ldo_comp_entries[i].llc_pool, new_pool);
358 * Create new layout generation.
360 * The only requirement for layout generation is that it changes when
361 * the layout is modified, so a circular counter is sufficient for the
362 * low rate of layout modifications.
364 * Layout generation is also used to generate unique component ID.
365 * To detect generation overflow, we preserve the highest bit of the
366 * generation when it wrapped.
368 static inline void lod_obj_inc_layout_gen(struct lod_object *lo)
370 __u32 preserve = lo->ldo_layout_gen & ~LCME_ID_MASK;
371 lo->ldo_layout_gen++;
372 lo->ldo_layout_gen |= preserve;
373 /* Zero is not a valid generation */
374 if (unlikely((lo->ldo_layout_gen & LCME_ID_MASK) == 0))
375 lo->ldo_layout_gen++;
379 struct dt_object *lit_obj; /* object from the layer below */
380 /* stripe offset of iteration */
381 __u32 lit_stripe_index;
383 struct dt_it *lit_it; /* iterator from the layer below */
386 struct lod_thread_info {
387 /* per-thread buffer for LOV EA, may be vmalloc'd */
389 __u32 lti_ea_store_size;
390 /* per-thread buffer for LMV EA */
391 struct lu_buf lti_buf;
392 struct ost_id lti_ostid;
393 struct lu_fid lti_fid;
394 struct obd_statfs lti_osfs;
395 struct lu_attr lti_attr;
396 struct lod_it lti_it;
397 struct ldlm_res_id lti_res_id;
398 struct ost_pool lti_inuse_osts;
399 /* used to hold lu_dirent, sizeof(struct lu_dirent) + NAME_MAX */
400 char lti_key[sizeof(struct lu_dirent) +
402 struct dt_object_format lti_format;
403 struct lu_name lti_name;
404 struct lu_buf lti_linkea_buf;
405 struct dt_insert_rec lti_dt_rec;
406 struct llog_catid lti_cid;
407 struct llog_cookie lti_cookie;
408 struct lustre_cfg lti_lustre_cfg;
409 /* used to store parent default striping in create */
410 struct lod_default_striping lti_def_striping;
411 struct filter_fid lti_ff;
413 size_t lti_comp_size;
415 struct lu_attr lti_layout_attr;
418 extern const struct lu_device_operations lod_lu_ops;
420 static inline int lu_device_is_lod(struct lu_device *d)
422 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &lod_lu_ops);
425 static inline struct lod_device* lu2lod_dev(struct lu_device *d)
427 LASSERT(lu_device_is_lod(d));
428 return container_of0(d, struct lod_device, lod_dt_dev.dd_lu_dev);
431 static inline struct lu_device *lod2lu_dev(struct lod_device *d)
433 return &d->lod_dt_dev.dd_lu_dev;
436 static inline struct obd_device *lod2obd(struct lod_device *d)
438 return d->lod_dt_dev.dd_lu_dev.ld_obd;
441 static inline struct lod_device *dt2lod_dev(struct dt_device *d)
443 LASSERT(lu_device_is_lod(&d->dd_lu_dev));
444 return container_of0(d, struct lod_device, lod_dt_dev);
447 static inline struct lod_object *lu2lod_obj(struct lu_object *o)
449 LASSERT(ergo(o != NULL, lu_device_is_lod(o->lo_dev)));
450 return container_of0(o, struct lod_object, ldo_obj.do_lu);
453 static inline struct lu_object *lod2lu_obj(struct lod_object *obj)
455 return &obj->ldo_obj.do_lu;
458 static inline const struct lu_fid *lod_object_fid(struct lod_object *obj)
460 return lu_object_fid(lod2lu_obj(obj));
463 static inline struct lod_object *lod_obj(const struct lu_object *o)
465 LASSERT(lu_device_is_lod(o->lo_dev));
466 return container_of0(o, struct lod_object, ldo_obj.do_lu);
469 static inline struct lod_object *lod_dt_obj(const struct dt_object *d)
471 return lod_obj(&d->do_lu);
474 static inline struct dt_object* lod_object_child(struct lod_object *o)
476 return container_of0(lu_object_next(lod2lu_obj(o)),
477 struct dt_object, do_lu);
480 static inline bool lod_obj_is_striped(struct dt_object *dt)
482 struct lod_object *lo = lod_dt_obj(dt);
485 if (!dt_object_exists(dt_object_child(dt)))
488 if (S_ISDIR(dt->do_lu.lo_header->loh_attr))
489 return lo->ldo_dir_stripe_count != 0;
491 for (i = 0; i < lo->ldo_comp_cnt; i++) {
492 if (lo->ldo_comp_entries[i].llc_stripe == NULL)
494 LASSERT(lo->ldo_comp_entries[i].llc_stripe_count > 0);
500 extern struct lu_context_key lod_thread_key;
502 static inline struct lod_thread_info *lod_env_info(const struct lu_env *env)
504 struct lod_thread_info *info;
505 info = lu_context_key_get(&env->le_ctx, &lod_thread_key);
510 static inline struct lu_name *
511 lod_name_get(const struct lu_env *env, const void *area, int len)
513 struct lu_name *lname;
515 lname = &lod_env_info(env)->lti_name;
516 lname->ln_name = area;
517 lname->ln_namelen = len;
521 static inline void lod_layout_get_pool(struct lod_layout_component *entries,
522 int count, char *pool, int len)
526 for (i = 0; i < count; i++) {
527 if (entries[i].llc_pool != NULL) {
528 strlcpy(pool, entries[i].llc_pool, len);
534 #define lod_foreach_ost(__dev, index) \
535 if ((__dev)->lod_osts_size > 0) \
536 cfs_foreach_bit((__dev)->lod_ost_bitmap, (index))
538 #define lod_foreach_mdt(mdt_dev, index) \
539 cfs_foreach_bit((mdt_dev)->lod_mdt_bitmap, (index))
542 extern struct kmem_cache *lod_object_kmem;
543 int lod_fld_lookup(const struct lu_env *env, struct lod_device *lod,
544 const struct lu_fid *fid, __u32 *tgt, int *flags);
545 int lod_sub_init_llog(const struct lu_env *env, struct lod_device *lod,
546 struct dt_device *dt);
547 void lod_sub_fini_llog(const struct lu_env *env,
548 struct dt_device *dt, struct ptlrpc_thread *thread);
549 int lodname2mdt_index(char *lodname, __u32 *mdt_index);
550 extern void target_recovery_fini(struct obd_device *obd);
553 void lod_getref(struct lod_tgt_descs *ltd);
554 void lod_putref(struct lod_device *lod, struct lod_tgt_descs *ltd);
555 int lod_add_device(const struct lu_env *env, struct lod_device *lod,
556 char *osp, unsigned index, unsigned gen, int mdt_index,
557 char *type, int active);
558 int lod_del_device(const struct lu_env *env, struct lod_device *lod,
559 struct lod_tgt_descs *ltd, char *osp, unsigned idx,
560 unsigned gen, bool for_ost);
561 int lod_fini_tgt(const struct lu_env *env, struct lod_device *lod,
562 struct lod_tgt_descs *ltd, bool for_ost);
563 int lod_load_striping_locked(const struct lu_env *env, struct lod_object *lo);
564 int lod_load_striping(const struct lu_env *env, struct lod_object *lo);
566 int lod_get_ea(const struct lu_env *env, struct lod_object *lo,
569 lod_get_lov_ea(const struct lu_env *env, struct lod_object *lo)
571 return lod_get_ea(env, lo, XATTR_NAME_LOV);
575 lod_get_lmv_ea(const struct lu_env *env, struct lod_object *lo)
577 return lod_get_ea(env, lo, XATTR_NAME_LMV);
581 lod_get_default_lmv_ea(const struct lu_env *env, struct lod_object *lo)
583 return lod_get_ea(env, lo, XATTR_NAME_DEFAULT_LMV);
587 lod_comp_set_init(struct lod_layout_component *entry)
589 entry->llc_flags |= LCME_FL_INIT;
593 lod_comp_unset_init(struct lod_layout_component *entry)
595 entry->llc_flags &= ~LCME_FL_INIT;
599 lod_comp_inited(const struct lod_layout_component *entry)
601 return entry->llc_flags & LCME_FL_INIT;
605 * For a PFL file, some of its component could be un-instantiated, so
606 * that their lov_ost_data_v1 array is not needed, we'd use this function
607 * to reduce the LOVEA buffer size.
609 * Note: if llc_ostlist contains value, we'd need lov_ost_data_v1 array to
610 * save the specified OST index list.
613 lod_comp_shrink_stripe_count(struct lod_layout_component *lod_comp,
617 * Need one lov_ost_data_v1 to store invalid ost_idx, please refer to
618 * lod_parse_striping()
620 if (!lod_comp_inited(lod_comp) && lod_comp->llc_ostlist.op_count == 0)
624 void lod_fix_desc(struct lov_desc *desc);
625 void lod_fix_desc_qos_maxage(__u32 *val);
626 void lod_fix_desc_pattern(__u32 *val);
627 void lod_fix_desc_stripe_count(__u32 *val);
628 void lod_fix_desc_stripe_size(__u64 *val);
629 int lod_pools_init(struct lod_device *m, struct lustre_cfg *cfg);
630 int lod_pools_fini(struct lod_device *m);
631 int lod_parse_striping(const struct lu_env *env, struct lod_object *mo,
632 const struct lu_buf *buf);
633 int lod_parse_dir_striping(const struct lu_env *env, struct lod_object *lo,
634 const struct lu_buf *buf);
635 int lod_initialize_objects(const struct lu_env *env, struct lod_object *mo,
636 struct lov_ost_data_v1 *objs, int index);
637 int lod_verify_striping(struct lod_device *d, struct lod_object *lo,
638 const struct lu_buf *buf, bool is_from_disk);
639 int lod_generate_lovea(const struct lu_env *env, struct lod_object *lo,
640 struct lov_mds_md *lmm, int *lmm_size, bool is_dir);
641 int lod_ea_store_resize(struct lod_thread_info *info, size_t size);
642 int lod_def_striping_comp_resize(struct lod_default_striping *lds, __u16 count);
643 void lod_free_def_comp_entries(struct lod_default_striping *lds);
644 void lod_free_comp_entries(struct lod_object *lo);
645 int lod_alloc_comp_entries(struct lod_object *lo, int mirror_cnt, int comp_cnt);
646 int lod_fill_mirrors(struct lod_object *lo);
649 int lod_ost_pool_add(struct ost_pool *op, __u32 idx, unsigned int min_count);
650 int lod_ost_pool_remove(struct ost_pool *op, __u32 idx);
651 int lod_ost_pool_extend(struct ost_pool *op, unsigned int min_count);
652 struct pool_desc *lod_find_pool(struct lod_device *lod, char *poolname);
653 void lod_pool_putref(struct pool_desc *pool);
654 int lod_ost_pool_free(struct ost_pool *op);
655 int lod_pool_del(struct obd_device *obd, char *poolname);
656 int lod_ost_pool_init(struct ost_pool *op, unsigned int count);
657 extern struct cfs_hash_ops pool_hash_operations;
658 int lod_check_index_in_pool(__u32 idx, struct pool_desc *pool);
659 int lod_pool_new(struct obd_device *obd, char *poolname);
660 int lod_pool_add(struct obd_device *obd, char *poolname, char *ostname);
661 int lod_pool_remove(struct obd_device *obd, char *poolname, char *ostname);
663 struct lod_obj_stripe_cb_data;
664 typedef int (*lod_obj_stripe_cb_t)(const struct lu_env *env,
665 struct lod_object *lo, struct dt_object *dt,
667 int comp_idx, int stripe_idx,
668 struct lod_obj_stripe_cb_data *data);
669 typedef bool (*lod_obj_comp_skip_cb_t)(const struct lu_env *env,
670 struct lod_object *lo, int comp_idx,
671 struct lod_obj_stripe_cb_data *data);
672 struct lod_obj_stripe_cb_data {
674 const struct lu_attr *locd_attr;
675 struct ost_pool *locd_inuse;
677 lod_obj_stripe_cb_t locd_stripe_cb;
678 lod_obj_comp_skip_cb_t locd_comp_skip_cb;
683 int lod_prepare_inuse(const struct lu_env *env, struct lod_object *lo);
684 int lod_prepare_create(const struct lu_env *env, struct lod_object *lo,
685 struct lu_attr *attr, const struct lu_buf *buf,
687 int qos_add_tgt(struct lod_device*, struct lod_tgt_desc *);
688 int qos_del_tgt(struct lod_device *, struct lod_tgt_desc *);
689 void lod_qos_rr_init(struct lod_qos_rr *lqr);
690 int lod_use_defined_striping(const struct lu_env *, struct lod_object *,
691 const struct lu_buf *);
692 int lod_obj_stripe_set_inuse_cb(const struct lu_env *env, struct lod_object *lo,
693 struct dt_object *dt, struct thandle *th,
694 int comp_idx, int stripe_idx,
695 struct lod_obj_stripe_cb_data *data);
696 int lod_qos_parse_config(const struct lu_env *env, struct lod_object *lo,
697 const struct lu_buf *buf);
698 int lod_qos_prep_create(const struct lu_env *env, struct lod_object *lo,
699 struct lu_attr *attr, struct thandle *th,
700 int comp_idx, struct ost_pool *inuse);
701 __u16 lod_comp_entry_stripe_count(struct lod_object *lo,
702 struct lod_layout_component *entry,
704 __u16 lod_get_stripe_count(struct lod_device *lod, struct lod_object *lo,
706 void lod_qos_statfs_update(const struct lu_env *env, struct lod_device *lod);
709 int lod_procfs_init(struct lod_device *lod);
710 void lod_procfs_fini(struct lod_device *lod);
713 extern struct dt_object_operations lod_obj_ops;
714 extern struct lu_object_operations lod_lu_obj_ops;
716 int lod_load_lmv_shards(const struct lu_env *env, struct lod_object *lo,
717 struct lu_buf *buf, bool resize);
718 int lod_declare_striped_create(const struct lu_env *env, struct dt_object *dt,
719 struct lu_attr *attr,
720 const struct lu_buf *lovea, struct thandle *th);
721 int lod_striped_create(const struct lu_env *env, struct dt_object *dt,
722 struct lu_attr *attr, struct dt_object_format *dof,
724 void lod_object_free_striping(const struct lu_env *env, struct lod_object *lo);
726 int lod_obj_for_each_stripe(const struct lu_env *env, struct lod_object *lo,
728 struct lod_obj_stripe_cb_data *data);
730 /* lod_sub_object.c */
731 struct thandle *lod_sub_get_thandle(const struct lu_env *env,
733 const struct dt_object *sub_obj,
734 bool *record_update);
735 int lod_sub_declare_create(const struct lu_env *env, struct dt_object *dt,
736 struct lu_attr *attr,
737 struct dt_allocation_hint *hint,
738 struct dt_object_format *dof, struct thandle *th);
739 int lod_sub_create(const struct lu_env *env, struct dt_object *dt,
740 struct lu_attr *attr, struct dt_allocation_hint *hint,
741 struct dt_object_format *dof, struct thandle *th);
742 int lod_sub_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
744 int lod_sub_ref_add(const struct lu_env *env, struct dt_object *dt,
746 int lod_sub_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
748 int lod_sub_ref_del(const struct lu_env *env, struct dt_object *dt,
750 int lod_sub_declare_destroy(const struct lu_env *env, struct dt_object *dt,
752 int lod_sub_destroy(const struct lu_env *env, struct dt_object *dt,
754 int lod_sub_declare_insert(const struct lu_env *env, struct dt_object *dt,
755 const struct dt_rec *rec, const struct dt_key *key,
757 int lod_sub_insert(const struct lu_env *env, struct dt_object *dt,
758 const struct dt_rec *rec, const struct dt_key *key,
759 struct thandle *th, int ign);
760 int lod_sub_declare_delete(const struct lu_env *env, struct dt_object *dt,
761 const struct dt_key *key, struct thandle *th);
762 int lod_sub_delete(const struct lu_env *env, struct dt_object *dt,
763 const struct dt_key *name, struct thandle *th);
764 int lod_sub_declare_xattr_set(const struct lu_env *env, struct dt_object *dt,
765 const struct lu_buf *buf, const char *name,
766 int fl, struct thandle *th);
767 int lod_sub_xattr_set(const struct lu_env *env, struct dt_object *dt,
768 const struct lu_buf *buf, const char *name, int fl,
770 int lod_sub_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
771 const struct lu_attr *attr, struct thandle *th);
772 int lod_sub_attr_set(const struct lu_env *env, struct dt_object *dt,
773 const struct lu_attr *attr, struct thandle *th);
774 int lod_sub_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
775 const char *name, struct thandle *th);
776 int lod_sub_xattr_del(const struct lu_env *env, struct dt_object *dt,
777 const char *name, struct thandle *th);
778 int lod_sub_declare_write(const struct lu_env *env, struct dt_object *dt,
779 const struct lu_buf *buf, loff_t pos,
781 ssize_t lod_sub_write(const struct lu_env *env, struct dt_object *dt,
782 const struct lu_buf *buf, loff_t *pos,
783 struct thandle *th, int rq);
784 int lod_sub_declare_punch(const struct lu_env *env, struct dt_object *dt,
785 __u64 start, __u64 end, struct thandle *th);
786 int lod_sub_punch(const struct lu_env *env, struct dt_object *dt,
787 __u64 start, __u64 end, struct thandle *th);
789 int lod_sub_prep_llog(const struct lu_env *env, struct lod_device *lod,
790 struct dt_device *dt, int index);