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 time64_t lqo_used; /* last used time, seconds */
104 __u32 lqo_ost_count; /* number of osts on this oss */
105 __u32 lqo_id; /* unique oss id */
109 struct lod_qos_oss *ltq_oss; /* oss info */
110 __u64 ltq_penalty; /* current penalty */
111 __u64 ltq_penalty_per_obj; /* penalty decrease
113 __u64 ltq_weight; /* net weighting */
114 time64_t ltq_used; /* last used time, seconds */
115 bool ltq_usable:1; /* usable for striping */
118 struct lod_tgt_desc {
119 struct dt_device *ltd_tgt;
120 struct list_head ltd_kill;
121 struct obd_export *ltd_exp;
122 struct obd_uuid ltd_uuid;
125 struct ltd_qos ltd_qos; /* qos info per target */
126 struct obd_statfs ltd_statfs;
127 struct ptlrpc_thread *ltd_recovery_thread;
128 unsigned long ltd_active:1,/* is this target up for requests */
129 ltd_activate:1,/* should target be activated */
130 ltd_reap:1, /* should this target be deleted */
131 ltd_got_update_log:1, /* Already got update log */
132 ltd_connecting:1; /* target is connecting */
135 #define TGT_PTRS 256 /* number of pointers at 1st level */
136 #define TGT_PTRS_PER_BLOCK 256 /* number of pointers at 2nd level */
138 struct lod_tgt_desc_idx {
139 struct lod_tgt_desc *ldi_tgt[TGT_PTRS_PER_BLOCK];
142 #define LTD_TGT(ltd, index) \
143 ((ltd)->ltd_tgt_idx[(index) / \
144 TGT_PTRS_PER_BLOCK]->ldi_tgt[(index) % TGT_PTRS_PER_BLOCK])
146 #define OST_TGT(lod, index) LTD_TGT(&lod->lod_ost_descs, index)
147 #define MDT_TGT(lod, index) LTD_TGT(&lod->lod_mdt_descs, index)
148 struct lod_tgt_descs {
149 /* list of known TGTs */
150 struct lod_tgt_desc_idx *ltd_tgt_idx[TGT_PTRS];
151 /* Size of the lod_tgts array, granted to be a power of 2 */
153 /* number of registered TGTs */
155 /* bitmap of TGTs available */
156 struct cfs_bitmap *ltd_tgt_bitmap;
157 /* TGTs scheduled to be deleted */
159 /* Table refcount used for delayed deletion */
161 /* mutex to serialize concurrent updates to the tgt table */
162 struct mutex ltd_mutex;
163 /* read/write semaphore used for array relocation */
164 struct rw_semaphore ltd_rw_sem;
167 struct lod_avoid_guide {
168 /* ids of OSSs avoid guidance */
169 __u32 *lag_oss_avoid_array;
170 /* number of filled array items */
171 unsigned int lag_oaa_count;
172 /* number of allocated array items */
173 unsigned int lag_oaa_size;
174 /* bitmap of OSTs avoid guidance */
175 struct cfs_bitmap *lag_ost_avoid_bitmap;
176 /* how many OSTs are available for alloc */
181 struct dt_device lod_dt_dev;
182 struct obd_export *lod_child_exp;
183 struct dt_device *lod_child;
184 struct lprocfs_stats *lod_stats;
185 spinlock_t lod_connects_lock;
187 unsigned int lod_recovery_completed:1,
190 lod_child_got_update_log:1;
192 /* lov settings descriptor storing static information */
193 struct lov_desc lod_desc;
195 /* protect ld_active_tgt_count, ltd_active and lod_md_root */
198 /* Description of OST */
199 struct lod_tgt_descs lod_ost_descs;
200 /* Description of MDT */
201 struct lod_tgt_descs lod_mdt_descs;
203 /* Recovery thread for lod_child */
204 struct ptlrpc_thread lod_child_recovery_thread;
206 /* maximum EA size underlied OSD may have */
207 unsigned int lod_osd_max_easize;
208 /* maximum size of MDT stripe for Data-on-MDT files. */
209 unsigned int lod_dom_max_stripesize;
211 /*FIXME: When QOS and pool is implemented for MDT, probably these
212 * structure should be moved to lod_tgt_descs as well.
214 /* QoS info per LOD */
215 struct lod_qos lod_qos; /* qos info per lod */
218 struct ost_pool lod_pool_info; /* all OSTs in a packed array */
220 struct cfs_hash *lod_pools_hash_body; /* used for key access */
221 struct list_head lod_pool_list; /* used for sequential access */
222 struct proc_dir_entry *lod_pool_proc_entry;
224 enum lustre_sec_part lod_sp_me;
226 struct proc_dir_entry *lod_symlink;
227 struct dentry *lod_debugfs;
229 /* ROOT object, used to fetch FS default striping */
230 struct lod_object *lod_md_root;
233 #define lod_osts lod_ost_descs.ltd_tgts
234 #define lod_ost_bitmap lod_ost_descs.ltd_tgt_bitmap
235 #define lod_ostnr lod_ost_descs.ltd_tgtnr
236 #define lod_osts_size lod_ost_descs.ltd_tgts_size
237 #define ltd_ost ltd_tgt
238 #define lod_ost_desc lod_tgt_desc
240 #define lod_mdts lod_mdt_descs.ltd_tgts
241 #define lod_mdt_bitmap lod_mdt_descs.ltd_tgt_bitmap
242 #define lod_remote_mdt_count lod_mdt_descs.ltd_tgtnr
243 #define lod_mdts_size lod_mdt_descs.ltd_tgts_size
244 #define ltd_mdt ltd_tgt
245 #define lod_mdt_desc lod_tgt_desc
247 struct lod_layout_component {
248 struct lu_extent llc_extent;
251 __u32 llc_stripe_size;
253 __u16 llc_layout_gen;
254 __u16 llc_stripe_offset;
255 __u16 llc_stripe_count;
256 __u16 llc_stripes_allocated;
258 /* ost list specified with LOV_USER_MAGIC_SPECIFIC lum */
259 struct ost_pool llc_ostlist;
260 struct dt_object **llc_stripe;
261 __u32 *llc_ost_indices;
264 struct lod_default_striping {
266 /* current layout component count */
267 __u16 lds_def_comp_cnt;
268 __u16 lds_def_mirror_cnt;
269 /* the largest comp count ever used */
270 __u32 lds_def_comp_size_cnt;
271 struct lod_layout_component *lds_def_comp_entries;
273 __u32 lds_dir_def_stripe_count;
274 __u32 lds_dir_def_stripe_offset;
275 __u32 lds_dir_def_hash_type;
276 /* default file striping flags (LOV) */
277 __u32 lds_def_striping_set:1,
278 lds_def_striping_is_composite:1,
279 /* default dir striping flags (LMV) */
280 lds_dir_def_striping_set:1;
283 struct lod_mirror_entry {
288 /* start,end index of this mirror in ldo_comp_entries */
294 /* common fields for both files and directories */
295 struct dt_object ldo_obj;
296 struct mutex ldo_layout_mutex;
298 /* file stripe (LOV) */
300 __u32 ldo_layout_gen;
301 /* Layout component count for a regular file.
302 * It equals to 1 for non-composite layout. */
304 /* Layout mirror count for a PFLR file.
305 * It's 0 for files with non-composite layout. */
306 __u16 ldo_mirror_count;
307 struct lod_mirror_entry *ldo_mirrors;
308 __u32 ldo_is_composite:1,
312 /* directory stripe (LMV) */
314 /* Slave stripe count for striped directory. */
315 __u16 ldo_dir_stripe_count;
316 /* How many stripes allocated for a striped directory */
317 __u16 ldo_dir_stripes_allocated;
318 __u32 ldo_dir_stripe_offset;
319 __u32 ldo_dir_hash_type;
320 /* Is a slave stripe of striped directory? */
321 __u32 ldo_dir_slave_stripe:1,
323 /* the stripe has been loaded */
324 ldo_dir_stripe_loaded:1;
326 * default striping is not cached, so this field is
327 * invalid after create, make sure it's used by
328 * lod_dir_striping_create_internal() only.
330 struct lod_default_striping *ldo_def_striping;
333 /* file stripe (LOV) */
334 struct lod_layout_component *ldo_comp_entries;
335 /* slave stripes of striped directory (LMV) */
336 struct dt_object **ldo_stripe;
339 #define lod_foreach_mirror_comp(comp, lo, mirror_idx) \
340 for (comp = &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_start]; \
341 comp <= &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_end]; \
344 static inline bool lod_is_flr(const struct lod_object *lo)
346 if (!lo->ldo_is_composite)
349 return (lo->ldo_flr_state & LCM_FL_FLR_MASK) != LCM_FL_NONE;
352 static inline int lod_set_pool(char **pool, const char *new_pool)
356 if (*pool == new_pool)
360 len = strlen(*pool) + 1;
361 OBD_FREE(*pool, len);
364 if (new_pool != NULL) {
365 len = strlen(new_pool) + 1;
366 OBD_ALLOC(*pool, len);
369 strlcpy(*pool, new_pool, len);
374 static inline int lod_set_def_pool(struct lod_default_striping *lds,
375 int i, const char *new_pool)
377 return lod_set_pool(&lds->lds_def_comp_entries[i].llc_pool, new_pool);
380 static inline int lod_obj_set_pool(struct lod_object *lo, int i,
381 const char *new_pool)
383 return lod_set_pool(&lo->ldo_comp_entries[i].llc_pool, new_pool);
387 * Create new layout generation.
389 * The only requirement for layout generation is that it changes when
390 * the layout is modified, so a circular counter is sufficient for the
391 * low rate of layout modifications.
393 * Layout generation is also used to generate unique component ID.
394 * To detect generation overflow, we preserve the highest bit of the
395 * generation when it wrapped.
397 static inline void lod_obj_inc_layout_gen(struct lod_object *lo)
399 __u32 preserve = lo->ldo_layout_gen & ~LCME_ID_MASK;
400 lo->ldo_layout_gen++;
401 lo->ldo_layout_gen |= preserve;
402 /* Zero is not a valid generation */
403 if (unlikely((lo->ldo_layout_gen & LCME_ID_MASK) == 0))
404 lo->ldo_layout_gen++;
408 struct dt_object *lit_obj; /* object from the layer below */
409 /* stripe offset of iteration */
410 __u32 lit_stripe_index;
412 struct dt_it *lit_it; /* iterator from the layer below */
415 struct lod_thread_info {
416 /* per-thread buffer for LOV EA, may be vmalloc'd */
418 __u32 lti_ea_store_size;
419 /* per-thread buffer for LMV EA */
420 struct lu_buf lti_buf;
421 struct ost_id lti_ostid;
422 struct lu_fid lti_fid;
423 struct obd_statfs lti_osfs;
424 struct lu_attr lti_attr;
425 struct lod_it lti_it;
426 struct ldlm_res_id lti_res_id;
427 /* used to hold lu_dirent, sizeof(struct lu_dirent) + NAME_MAX */
428 char lti_key[sizeof(struct lu_dirent) +
430 struct dt_object_format lti_format;
431 struct lu_name lti_name;
432 struct lu_buf lti_linkea_buf;
433 struct dt_insert_rec lti_dt_rec;
434 struct llog_catid lti_cid;
435 struct llog_cookie lti_cookie;
436 struct lustre_cfg lti_lustre_cfg;
437 /* used to store parent default striping in create */
438 struct lod_default_striping lti_def_striping;
439 struct filter_fid lti_ff;
441 size_t lti_comp_size;
443 struct lu_attr lti_layout_attr;
444 /* object allocation avoid guide info */
445 struct lod_avoid_guide lti_avoid;
448 extern const struct lu_device_operations lod_lu_ops;
450 static inline int lu_device_is_lod(struct lu_device *d)
452 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &lod_lu_ops);
455 static inline struct lod_device* lu2lod_dev(struct lu_device *d)
457 LASSERT(lu_device_is_lod(d));
458 return container_of0(d, struct lod_device, lod_dt_dev.dd_lu_dev);
461 static inline struct lu_device *lod2lu_dev(struct lod_device *d)
463 return &d->lod_dt_dev.dd_lu_dev;
466 static inline struct obd_device *lod2obd(struct lod_device *d)
468 return d->lod_dt_dev.dd_lu_dev.ld_obd;
471 static inline struct lod_device *dt2lod_dev(struct dt_device *d)
473 LASSERT(lu_device_is_lod(&d->dd_lu_dev));
474 return container_of0(d, struct lod_device, lod_dt_dev);
477 static inline struct lod_object *lu2lod_obj(struct lu_object *o)
479 LASSERT(ergo(o != NULL, lu_device_is_lod(o->lo_dev)));
480 return container_of0(o, struct lod_object, ldo_obj.do_lu);
483 static inline struct lu_object *lod2lu_obj(struct lod_object *obj)
485 return &obj->ldo_obj.do_lu;
488 static inline const struct lu_fid *lod_object_fid(struct lod_object *obj)
490 return lu_object_fid(lod2lu_obj(obj));
493 static inline struct lod_object *lod_obj(const struct lu_object *o)
495 LASSERT(lu_device_is_lod(o->lo_dev));
496 return container_of0(o, struct lod_object, ldo_obj.do_lu);
499 static inline struct lod_object *lod_dt_obj(const struct dt_object *d)
501 return lod_obj(&d->do_lu);
504 static inline struct dt_object* lod_object_child(struct lod_object *o)
506 return container_of0(lu_object_next(lod2lu_obj(o)),
507 struct dt_object, do_lu);
510 static inline bool lod_obj_is_striped(struct dt_object *dt)
512 struct lod_object *lo = lod_dt_obj(dt);
515 if (!dt_object_exists(dt_object_child(dt)))
518 if (S_ISDIR(dt->do_lu.lo_header->loh_attr))
519 return lo->ldo_dir_stripe_count != 0;
521 for (i = 0; i < lo->ldo_comp_cnt; i++) {
522 if (lo->ldo_comp_entries[i].llc_stripe == NULL)
524 LASSERT(lo->ldo_comp_entries[i].llc_stripe_count > 0);
530 extern struct lu_context_key lod_thread_key;
532 static inline struct lod_thread_info *lod_env_info(const struct lu_env *env)
534 struct lod_thread_info *info;
535 info = lu_context_key_get(&env->le_ctx, &lod_thread_key);
540 static inline struct lu_name *
541 lod_name_get(const struct lu_env *env, const void *area, int len)
543 struct lu_name *lname;
545 lname = &lod_env_info(env)->lti_name;
546 lname->ln_name = area;
547 lname->ln_namelen = len;
551 static inline void lod_layout_get_pool(struct lod_layout_component *entries,
552 int count, char *pool, int len)
556 for (i = 0; i < count; i++) {
557 if (entries[i].llc_pool != NULL) {
558 strlcpy(pool, entries[i].llc_pool, len);
564 #define lod_foreach_ost(__dev, index) \
565 if ((__dev)->lod_osts_size > 0) \
566 cfs_foreach_bit((__dev)->lod_ost_bitmap, (index))
568 #define lod_foreach_mdt(mdt_dev, index) \
569 cfs_foreach_bit((mdt_dev)->lod_mdt_bitmap, (index))
572 extern struct kmem_cache *lod_object_kmem;
573 int lod_fld_lookup(const struct lu_env *env, struct lod_device *lod,
574 const struct lu_fid *fid, __u32 *tgt, int *flags);
575 int lod_sub_init_llog(const struct lu_env *env, struct lod_device *lod,
576 struct dt_device *dt);
577 void lod_sub_fini_llog(const struct lu_env *env,
578 struct dt_device *dt, struct ptlrpc_thread *thread);
579 int lodname2mdt_index(char *lodname, __u32 *mdt_index);
580 extern void target_recovery_fini(struct obd_device *obd);
583 void lod_getref(struct lod_tgt_descs *ltd);
584 void lod_putref(struct lod_device *lod, struct lod_tgt_descs *ltd);
585 int lod_add_device(const struct lu_env *env, struct lod_device *lod,
586 char *osp, unsigned index, unsigned gen, int mdt_index,
587 char *type, int active);
588 int lod_del_device(const struct lu_env *env, struct lod_device *lod,
589 struct lod_tgt_descs *ltd, char *osp, unsigned idx,
590 unsigned gen, bool for_ost);
591 int lod_fini_tgt(const struct lu_env *env, struct lod_device *lod,
592 struct lod_tgt_descs *ltd, bool for_ost);
593 int lod_striping_load(const struct lu_env *env, struct lod_object *lo);
594 int lod_striping_reload(const struct lu_env *env, struct lod_object *lo,
595 const struct lu_buf *buf);
597 int lod_get_ea(const struct lu_env *env, struct lod_object *lo,
600 lod_get_lov_ea(const struct lu_env *env, struct lod_object *lo)
602 return lod_get_ea(env, lo, XATTR_NAME_LOV);
606 lod_get_lmv_ea(const struct lu_env *env, struct lod_object *lo)
608 return lod_get_ea(env, lo, XATTR_NAME_LMV);
612 lod_get_default_lmv_ea(const struct lu_env *env, struct lod_object *lo)
614 return lod_get_ea(env, lo, XATTR_NAME_DEFAULT_LMV);
618 lod_comp_set_init(struct lod_layout_component *entry)
620 entry->llc_flags |= LCME_FL_INIT;
624 lod_comp_unset_init(struct lod_layout_component *entry)
626 entry->llc_flags &= ~LCME_FL_INIT;
630 lod_comp_inited(const struct lod_layout_component *entry)
632 return entry->llc_flags & LCME_FL_INIT;
636 * For a PFL file, some of its component could be un-instantiated, so
637 * that their lov_ost_data_v1 array is not needed, we'd use this function
638 * to reduce the LOVEA buffer size.
640 * Note: if llc_ostlist contains value, we'd need lov_ost_data_v1 array to
641 * save the specified OST index list.
644 lod_comp_shrink_stripe_count(struct lod_layout_component *lod_comp,
648 * Need one lov_ost_data_v1 to store invalid ost_idx, please refer to
649 * lod_parse_striping()
651 if (!lod_comp_inited(lod_comp) && lod_comp->llc_ostlist.op_count == 0)
655 void lod_fix_desc(struct lov_desc *desc);
656 void lod_fix_desc_qos_maxage(__u32 *val);
657 void lod_fix_desc_pattern(__u32 *val);
658 void lod_fix_desc_stripe_count(__u32 *val);
659 void lod_fix_desc_stripe_size(__u64 *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(struct lod_device *d, struct lod_object *lo,
669 const struct lu_buf *buf, bool is_from_disk);
670 int lod_generate_lovea(const struct lu_env *env, struct lod_object *lo,
671 struct lov_mds_md *lmm, int *lmm_size, bool is_dir);
672 int lod_ea_store_resize(struct lod_thread_info *info, size_t size);
673 int lod_def_striping_comp_resize(struct lod_default_striping *lds, __u16 count);
674 void lod_free_def_comp_entries(struct lod_default_striping *lds);
675 void lod_free_comp_entries(struct lod_object *lo);
676 int lod_alloc_comp_entries(struct lod_object *lo, int mirror_cnt, int comp_cnt);
677 int lod_fill_mirrors(struct lod_object *lo);
680 int lod_ost_pool_add(struct ost_pool *op, __u32 idx, unsigned int min_count);
681 int lod_ost_pool_remove(struct ost_pool *op, __u32 idx);
682 int lod_ost_pool_extend(struct ost_pool *op, unsigned int min_count);
683 struct pool_desc *lod_find_pool(struct lod_device *lod, char *poolname);
684 void lod_pool_putref(struct pool_desc *pool);
685 int lod_ost_pool_free(struct ost_pool *op);
686 int lod_pool_del(struct obd_device *obd, char *poolname);
687 int lod_ost_pool_init(struct ost_pool *op, unsigned int count);
688 extern struct cfs_hash_ops pool_hash_operations;
689 int lod_check_index_in_pool(__u32 idx, struct pool_desc *pool);
690 int lod_pool_new(struct obd_device *obd, char *poolname);
691 int lod_pool_add(struct obd_device *obd, char *poolname, char *ostname);
692 int lod_pool_remove(struct obd_device *obd, char *poolname, char *ostname);
694 struct lod_obj_stripe_cb_data;
695 typedef int (*lod_obj_stripe_cb_t)(const struct lu_env *env,
696 struct lod_object *lo, struct dt_object *dt,
698 int comp_idx, int stripe_idx,
699 struct lod_obj_stripe_cb_data *data);
700 typedef bool (*lod_obj_comp_skip_cb_t)(const struct lu_env *env,
701 struct lod_object *lo, int comp_idx,
702 struct lod_obj_stripe_cb_data *data);
703 typedef int (*lod_obj_comp_cb_t)(const struct lu_env *env,
704 struct lod_object *lo, int comp_idx,
705 struct lod_obj_stripe_cb_data *data);
706 struct lod_obj_stripe_cb_data {
708 const struct lu_attr *locd_attr;
711 lod_obj_stripe_cb_t locd_stripe_cb;
712 lod_obj_comp_skip_cb_t locd_comp_skip_cb;
713 lod_obj_comp_cb_t locd_comp_cb;
718 int lod_prepare_create(const struct lu_env *env, struct lod_object *lo,
719 struct lu_attr *attr, const struct lu_buf *buf,
721 int qos_add_tgt(struct lod_device*, struct lod_tgt_desc *);
722 int qos_del_tgt(struct lod_device *, struct lod_tgt_desc *);
723 void lod_qos_rr_init(struct lod_qos_rr *lqr);
724 int lod_use_defined_striping(const struct lu_env *, struct lod_object *,
725 const struct lu_buf *);
726 int lod_qos_parse_config(const struct lu_env *env, struct lod_object *lo,
727 const struct lu_buf *buf);
728 int lod_qos_prep_create(const struct lu_env *env, struct lod_object *lo,
729 struct lu_attr *attr, struct thandle *th,
731 __u16 lod_comp_entry_stripe_count(struct lod_object *lo,
732 struct lod_layout_component *entry,
734 __u16 lod_get_stripe_count(struct lod_device *lod, struct lod_object *lo,
736 void lod_qos_statfs_update(const struct lu_env *env, struct lod_device *lod);
739 int lod_procfs_init(struct lod_device *lod);
740 void lod_procfs_fini(struct lod_device *lod);
743 extern struct dt_object_operations lod_obj_ops;
744 extern struct lu_object_operations lod_lu_obj_ops;
746 int lod_load_lmv_shards(const struct lu_env *env, struct lod_object *lo,
747 struct lu_buf *buf, bool resize);
748 int lod_declare_striped_create(const struct lu_env *env, struct dt_object *dt,
749 struct lu_attr *attr,
750 const struct lu_buf *lovea, struct thandle *th);
751 int lod_striped_create(const struct lu_env *env, struct dt_object *dt,
752 struct lu_attr *attr, struct dt_object_format *dof,
754 void lod_striping_free_nolock(const struct lu_env *env, struct lod_object *lo);
755 void lod_striping_free(const struct lu_env *env, struct lod_object *lo);
757 int lod_obj_for_each_stripe(const struct lu_env *env, struct lod_object *lo,
759 struct lod_obj_stripe_cb_data *data);
761 /* lod_sub_object.c */
762 struct thandle *lod_sub_get_thandle(const struct lu_env *env,
764 const struct dt_object *sub_obj,
765 bool *record_update);
766 int lod_sub_declare_create(const struct lu_env *env, struct dt_object *dt,
767 struct lu_attr *attr,
768 struct dt_allocation_hint *hint,
769 struct dt_object_format *dof, struct thandle *th);
770 int lod_sub_create(const struct lu_env *env, struct dt_object *dt,
771 struct lu_attr *attr, struct dt_allocation_hint *hint,
772 struct dt_object_format *dof, struct thandle *th);
773 int lod_sub_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
775 int lod_sub_ref_add(const struct lu_env *env, struct dt_object *dt,
777 int lod_sub_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
779 int lod_sub_ref_del(const struct lu_env *env, struct dt_object *dt,
781 int lod_sub_declare_destroy(const struct lu_env *env, struct dt_object *dt,
783 int lod_sub_destroy(const struct lu_env *env, struct dt_object *dt,
785 int lod_sub_declare_insert(const struct lu_env *env, struct dt_object *dt,
786 const struct dt_rec *rec, const struct dt_key *key,
788 int lod_sub_insert(const struct lu_env *env, struct dt_object *dt,
789 const struct dt_rec *rec, const struct dt_key *key,
790 struct thandle *th, int ign);
791 int lod_sub_declare_delete(const struct lu_env *env, struct dt_object *dt,
792 const struct dt_key *key, struct thandle *th);
793 int lod_sub_delete(const struct lu_env *env, struct dt_object *dt,
794 const struct dt_key *name, struct thandle *th);
795 int lod_sub_declare_xattr_set(const struct lu_env *env, struct dt_object *dt,
796 const struct lu_buf *buf, const char *name,
797 int fl, struct thandle *th);
798 int lod_sub_xattr_set(const struct lu_env *env, struct dt_object *dt,
799 const struct lu_buf *buf, const char *name, int fl,
801 int lod_sub_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
802 const struct lu_attr *attr, struct thandle *th);
803 int lod_sub_attr_set(const struct lu_env *env, struct dt_object *dt,
804 const struct lu_attr *attr, struct thandle *th);
805 int lod_sub_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
806 const char *name, struct thandle *th);
807 int lod_sub_xattr_del(const struct lu_env *env, struct dt_object *dt,
808 const char *name, struct thandle *th);
809 int lod_sub_declare_write(const struct lu_env *env, struct dt_object *dt,
810 const struct lu_buf *buf, loff_t pos,
812 ssize_t lod_sub_write(const struct lu_env *env, struct dt_object *dt,
813 const struct lu_buf *buf, loff_t *pos,
814 struct thandle *th, int rq);
815 int lod_sub_declare_punch(const struct lu_env *env, struct dt_object *dt,
816 __u64 start, __u64 end, struct thandle *th);
817 int lod_sub_punch(const struct lu_env *env, struct dt_object *dt,
818 __u64 start, __u64 end, struct thandle *th);
820 int lod_sub_prep_llog(const struct lu_env *env, struct lod_device *lod,
821 struct dt_device *dt, int index);