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))
58 spinlock_t lqr_alloc; /* protect allocation index */
59 __u32 lqr_start_idx; /* start index of new inode */
60 __u32 lqr_offset_idx;/* aliasing for start_idx */
61 int lqr_start_count;/* reseed counter */
62 struct ost_pool lqr_pool; /* round-robin optimized list */
63 unsigned long lqr_dirty:1; /* recalc round-robin list */
67 char pool_name[LOV_MAXPOOLNAME + 1];
68 struct ost_pool pool_obds; /* pool members */
69 atomic_t pool_refcount;
70 struct lod_qos_rr pool_rr;
71 struct hlist_node pool_hash; /* access by poolname */
72 struct list_head pool_list;
73 struct proc_dir_entry *pool_proc_entry;
74 struct obd_device *pool_lobd; /* owner */
77 #define pool_tgt_count(p) ((p)->pool_obds.op_count)
78 #define pool_tgt_array(p) ((p)->pool_obds.op_array)
79 #define pool_tgt_rw_sem(p) ((p)->pool_obds.op_rw_sem)
82 struct list_head lq_oss_list;
83 struct rw_semaphore lq_rw_sem;
84 __u32 lq_active_oss_count;
85 unsigned int lq_prio_free; /* priority for free space */
86 unsigned int lq_threshold_rr;/* priority for rr */
87 struct lod_qos_rr lq_rr; /* round robin qos data */
88 bool lq_dirty:1, /* recalc qos data */
89 lq_same_space:1,/* the ost's all have approx.
90 the same space avail */
91 lq_reset:1; /* zero current penalties */
95 struct obd_uuid lqo_uuid; /* ptlrpc's c_remote_uuid */
96 struct list_head lqo_oss_list; /* link to lov_qos */
97 __u64 lqo_bavail; /* total bytes avail on OSS */
98 __u64 lqo_penalty; /* current penalty */
99 __u64 lqo_penalty_per_obj; /* penalty decrease
101 time64_t lqo_used; /* last used time, seconds */
102 __u32 lqo_ost_count; /* number of osts on this oss */
103 __u32 lqo_id; /* unique oss id */
107 struct lod_qos_oss *ltq_oss; /* oss info */
108 __u64 ltq_penalty; /* current penalty */
109 __u64 ltq_penalty_per_obj; /* penalty decrease
111 __u64 ltq_weight; /* net weighting */
112 time64_t ltq_used; /* last used time, seconds */
113 bool ltq_usable:1; /* usable for striping */
116 struct lod_tgt_desc {
117 struct dt_device *ltd_tgt;
118 struct list_head ltd_kill;
119 struct obd_export *ltd_exp;
120 struct obd_uuid ltd_uuid;
123 struct ltd_qos ltd_qos; /* qos info per target */
124 struct obd_statfs ltd_statfs;
125 struct ptlrpc_thread *ltd_recovery_thread;
126 unsigned long ltd_active:1,/* is this target up for requests */
127 ltd_activate:1,/* should target be activated */
128 ltd_reap:1, /* should this target be deleted */
129 ltd_got_update_log:1, /* Already got update log */
130 ltd_connecting:1; /* target is connecting */
133 #define TGT_PTRS 256 /* number of pointers at 1st level */
134 #define TGT_PTRS_PER_BLOCK 256 /* number of pointers at 2nd level */
136 struct lod_tgt_desc_idx {
137 struct lod_tgt_desc *ldi_tgt[TGT_PTRS_PER_BLOCK];
140 #define LTD_TGT(ltd, index) \
141 ((ltd)->ltd_tgt_idx[(index) / \
142 TGT_PTRS_PER_BLOCK]->ldi_tgt[(index) % TGT_PTRS_PER_BLOCK])
144 #define OST_TGT(lod, index) LTD_TGT(&lod->lod_ost_descs, index)
145 #define MDT_TGT(lod, index) LTD_TGT(&lod->lod_mdt_descs, index)
146 struct lod_tgt_descs {
147 /* list of known TGTs */
148 struct lod_tgt_desc_idx *ltd_tgt_idx[TGT_PTRS];
149 /* Size of the lod_tgts array, granted to be a power of 2 */
151 /* number of registered TGTs */
153 /* bitmap of TGTs available */
154 struct cfs_bitmap *ltd_tgt_bitmap;
155 /* TGTs scheduled to be deleted */
157 /* Table refcount used for delayed deletion */
159 /* mutex to serialize concurrent updates to the tgt table */
160 struct mutex ltd_mutex;
161 /* read/write semaphore used for array relocation */
162 struct rw_semaphore ltd_rw_sem;
165 struct lod_avoid_guide {
166 /* ids of OSSs avoid guidance */
167 __u32 *lag_oss_avoid_array;
168 /* number of filled array items */
169 unsigned int lag_oaa_count;
170 /* number of allocated array items */
171 unsigned int lag_oaa_size;
172 /* bitmap of OSTs avoid guidance */
173 struct cfs_bitmap *lag_ost_avoid_bitmap;
174 /* how many OSTs are available for alloc */
179 struct dt_device lod_dt_dev;
180 struct obd_export *lod_child_exp;
181 struct dt_device *lod_child;
182 struct lprocfs_stats *lod_stats;
183 spinlock_t lod_connects_lock;
185 unsigned int lod_recovery_completed:1,
188 lod_child_got_update_log:1;
190 /* lov settings descriptor storing static information */
191 struct lov_desc lod_desc;
193 /* protect ld_active_tgt_count, ltd_active and lod_md_root */
196 /* Description of OST */
197 struct lod_tgt_descs lod_ost_descs;
198 /* Description of MDT */
199 struct lod_tgt_descs lod_mdt_descs;
201 /* Recovery thread for lod_child */
202 struct ptlrpc_thread lod_child_recovery_thread;
204 /* maximum EA size underlied OSD may have */
205 unsigned int lod_osd_max_easize;
206 /* maximum size of MDT stripe for Data-on-MDT files. */
207 unsigned int lod_dom_max_stripesize;
209 /*FIXME: When QOS and pool is implemented for MDT, probably these
210 * structure should be moved to lod_tgt_descs as well.
212 /* QoS info per LOD */
213 struct lod_qos lod_qos; /* qos info per lod */
216 struct ost_pool lod_pool_info; /* all OSTs in a packed array */
218 struct cfs_hash *lod_pools_hash_body; /* used for key access */
219 struct list_head lod_pool_list; /* used for sequential access */
220 struct proc_dir_entry *lod_pool_proc_entry;
222 enum lustre_sec_part lod_sp_me;
224 struct proc_dir_entry *lod_symlink;
225 struct dentry *lod_debugfs;
227 /* ROOT object, used to fetch FS default striping */
228 struct lod_object *lod_md_root;
231 #define lod_osts lod_ost_descs.ltd_tgts
232 #define lod_ost_bitmap lod_ost_descs.ltd_tgt_bitmap
233 #define lod_ostnr lod_ost_descs.ltd_tgtnr
234 #define lod_osts_size lod_ost_descs.ltd_tgts_size
235 #define ltd_ost ltd_tgt
236 #define lod_ost_desc lod_tgt_desc
238 #define lod_mdts lod_mdt_descs.ltd_tgts
239 #define lod_mdt_bitmap lod_mdt_descs.ltd_tgt_bitmap
240 #define lod_remote_mdt_count lod_mdt_descs.ltd_tgtnr
241 #define lod_mdts_size lod_mdt_descs.ltd_tgts_size
242 #define ltd_mdt ltd_tgt
243 #define lod_mdt_desc lod_tgt_desc
245 struct lod_layout_component {
246 struct lu_extent llc_extent;
249 __u32 llc_stripe_size;
251 __u16 llc_layout_gen;
252 __u16 llc_stripe_offset;
253 __u16 llc_stripe_count;
254 __u16 llc_stripes_allocated;
255 __u64 llc_timestamp; /* snapshot time */
257 /* ost list specified with LOV_USER_MAGIC_SPECIFIC lum */
258 struct ost_pool llc_ostlist;
259 struct dt_object **llc_stripe;
260 __u32 *llc_ost_indices;
263 struct lod_default_striping {
265 /* current layout component count */
266 __u16 lds_def_comp_cnt;
267 __u16 lds_def_mirror_cnt;
268 /* the largest comp count ever used */
269 __u32 lds_def_comp_size_cnt;
270 struct lod_layout_component *lds_def_comp_entries;
272 __u32 lds_dir_def_stripe_count;
273 __u32 lds_dir_def_stripe_offset;
274 __u32 lds_dir_def_hash_type;
275 /* default file striping flags (LOV) */
276 __u32 lds_def_striping_set:1,
277 lds_def_striping_is_composite:1,
278 /* default dir striping flags (LMV) */
279 lds_dir_def_striping_set:1;
282 struct lod_mirror_entry {
287 /* start,end index of this mirror in ldo_comp_entries */
293 /* common fields for both files and directories */
294 struct dt_object ldo_obj;
295 struct mutex ldo_layout_mutex;
297 /* file stripe (LOV) */
299 __u32 ldo_layout_gen;
300 /* Layout component count for a regular file.
301 * It equals to 1 for non-composite layout. */
303 /* Layout mirror count for a PFLR file.
304 * It's 0 for files with non-composite layout. */
305 __u16 ldo_mirror_count;
306 struct lod_mirror_entry *ldo_mirrors;
307 __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 __u32 ldo_dir_migrate_offset;
321 __u32 ldo_dir_migrate_hash;
322 /* Is a slave stripe of striped directory? */
323 __u32 ldo_dir_slave_stripe:1,
325 /* the stripe has been loaded */
326 ldo_dir_stripe_loaded:1;
328 * default striping is not cached, so this field is
329 * invalid after create, make sure it's used by
330 * lod_dir_striping_create_internal() only.
332 struct lod_default_striping *ldo_def_striping;
337 /* foreign/raw format LOV */
338 char *ldo_foreign_lov;
339 size_t ldo_foreign_lov_size;
342 /* file stripe (LOV) */
343 struct lod_layout_component *ldo_comp_entries;
344 /* slave stripes of striped directory (LMV) */
345 struct dt_object **ldo_stripe;
350 #define lod_foreach_mirror_comp(comp, lo, mirror_idx) \
351 for (comp = &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_start]; \
352 comp <= &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_end]; \
355 static inline bool lod_is_flr(const struct lod_object *lo)
357 if (!lo->ldo_is_composite)
360 return (lo->ldo_flr_state & LCM_FL_FLR_MASK) != LCM_FL_NONE;
363 static inline int lod_set_pool(char **pool, const char *new_pool)
367 if (*pool == new_pool)
371 len = strlen(*pool) + 1;
372 OBD_FREE(*pool, len);
375 if (new_pool != NULL) {
376 len = strlen(new_pool) + 1;
377 OBD_ALLOC(*pool, len);
380 strlcpy(*pool, new_pool, len);
385 static inline int lod_set_def_pool(struct lod_default_striping *lds,
386 int i, const char *new_pool)
388 return lod_set_pool(&lds->lds_def_comp_entries[i].llc_pool, new_pool);
391 static inline int lod_obj_set_pool(struct lod_object *lo, int i,
392 const char *new_pool)
394 return lod_set_pool(&lo->ldo_comp_entries[i].llc_pool, new_pool);
398 * Create new layout generation.
400 * The only requirement for layout generation is that it changes when
401 * the layout is modified, so a circular counter is sufficient for the
402 * low rate of layout modifications.
404 * Layout generation is also used to generate unique component ID.
405 * To detect generation overflow, we preserve the highest bit of the
406 * generation when it wrapped.
408 static inline void lod_obj_inc_layout_gen(struct lod_object *lo)
410 __u32 preserve = lo->ldo_layout_gen & ~LCME_ID_MASK;
411 lo->ldo_layout_gen++;
412 lo->ldo_layout_gen |= preserve;
413 /* Zero is not a valid generation */
414 if (unlikely((lo->ldo_layout_gen & LCME_ID_MASK) == 0))
415 lo->ldo_layout_gen++;
419 struct dt_object *lit_obj; /* object from the layer below */
420 /* stripe offset of iteration */
421 __u32 lit_stripe_index;
423 struct dt_it *lit_it; /* iterator from the layer below */
426 struct lod_thread_info {
427 /* per-thread buffer for LOV EA, may be vmalloc'd */
429 __u32 lti_ea_store_size;
430 /* per-thread buffer for LMV EA */
431 struct lu_buf lti_buf;
432 struct ost_id lti_ostid;
433 struct lu_fid lti_fid;
434 struct obd_statfs lti_osfs;
435 struct lu_attr lti_attr;
436 struct lod_it lti_it;
437 struct ldlm_res_id lti_res_id;
438 /* used to hold lu_dirent, sizeof(struct lu_dirent) + NAME_MAX */
439 char lti_key[sizeof(struct lu_dirent) +
441 struct dt_object_format lti_format;
442 struct lu_name lti_name;
443 struct lu_buf lti_linkea_buf;
444 struct dt_insert_rec lti_dt_rec;
445 struct llog_catid lti_cid;
446 struct llog_cookie lti_cookie;
447 struct lustre_cfg lti_lustre_cfg;
448 /* used to store parent default striping in create */
449 struct lod_default_striping lti_def_striping;
450 struct filter_fid lti_ff;
452 size_t lti_comp_size;
454 struct lu_attr lti_layout_attr;
455 /* object allocation avoid guide info */
456 struct lod_avoid_guide lti_avoid;
459 extern const struct lu_device_operations lod_lu_ops;
461 static inline int lu_device_is_lod(struct lu_device *d)
463 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &lod_lu_ops);
466 static inline struct lod_device* lu2lod_dev(struct lu_device *d)
468 LASSERT(lu_device_is_lod(d));
469 return container_of0(d, struct lod_device, lod_dt_dev.dd_lu_dev);
472 static inline struct lu_device *lod2lu_dev(struct lod_device *d)
474 return &d->lod_dt_dev.dd_lu_dev;
477 static inline struct obd_device *lod2obd(struct lod_device *d)
479 return d->lod_dt_dev.dd_lu_dev.ld_obd;
482 static inline struct lod_device *dt2lod_dev(struct dt_device *d)
484 LASSERT(lu_device_is_lod(&d->dd_lu_dev));
485 return container_of0(d, struct lod_device, lod_dt_dev);
488 static inline struct lod_object *lu2lod_obj(struct lu_object *o)
490 LASSERT(ergo(o != NULL, lu_device_is_lod(o->lo_dev)));
491 return container_of0(o, struct lod_object, ldo_obj.do_lu);
494 static inline struct lu_object *lod2lu_obj(struct lod_object *obj)
496 return &obj->ldo_obj.do_lu;
499 static inline const struct lu_fid *lod_object_fid(struct lod_object *obj)
501 return lu_object_fid(lod2lu_obj(obj));
504 static inline struct lod_object *lod_obj(const struct lu_object *o)
506 LASSERT(lu_device_is_lod(o->lo_dev));
507 return container_of0(o, struct lod_object, ldo_obj.do_lu);
510 static inline struct lod_object *lod_dt_obj(const struct dt_object *d)
512 return lod_obj(&d->do_lu);
515 static inline struct dt_object* lod_object_child(struct lod_object *o)
517 return container_of0(lu_object_next(lod2lu_obj(o)),
518 struct dt_object, do_lu);
521 static inline bool lod_obj_is_striped(struct dt_object *dt)
523 struct lod_object *lo = lod_dt_obj(dt);
526 if (!dt_object_exists(dt_object_child(dt)))
529 if (S_ISDIR(dt->do_lu.lo_header->loh_attr))
530 return lo->ldo_dir_stripe_count != 0;
532 if (lo->ldo_is_foreign)
535 for (i = 0; i < lo->ldo_comp_cnt; i++) {
536 if (lo->ldo_comp_entries[i].llc_stripe == NULL)
538 LASSERT(lo->ldo_comp_entries[i].llc_stripe_count > 0);
544 extern struct lu_context_key lod_thread_key;
546 static inline struct lod_thread_info *lod_env_info(const struct lu_env *env)
548 struct lod_thread_info *info;
549 info = lu_context_key_get(&env->le_ctx, &lod_thread_key);
554 static inline struct lu_name *
555 lod_name_get(const struct lu_env *env, const void *area, int len)
557 struct lu_name *lname;
559 lname = &lod_env_info(env)->lti_name;
560 lname->ln_name = area;
561 lname->ln_namelen = len;
565 static inline struct lod_default_striping *
566 lod_lds_buf_get(const struct lu_env *env)
568 struct lod_thread_info *info = lod_env_info(env);
570 info->lti_def_striping.lds_def_striping_set = 0;
571 info->lti_def_striping.lds_dir_def_striping_set = 0;
572 return &info->lti_def_striping;
575 static inline void lod_layout_get_pool(struct lod_layout_component *entries,
576 int count, char *pool, int len)
580 for (i = 0; i < count; i++) {
581 if (entries[i].llc_pool != NULL) {
582 strlcpy(pool, entries[i].llc_pool, len);
588 #define lod_foreach_ost(__dev, index) \
589 if ((__dev)->lod_osts_size > 0) \
590 cfs_foreach_bit((__dev)->lod_ost_bitmap, (index))
592 #define lod_foreach_mdt(mdt_dev, index) \
593 cfs_foreach_bit((mdt_dev)->lod_mdt_bitmap, (index))
596 extern struct kmem_cache *lod_object_kmem;
597 int lod_fld_lookup(const struct lu_env *env, struct lod_device *lod,
598 const struct lu_fid *fid, __u32 *tgt, int *flags);
599 int lod_sub_init_llog(const struct lu_env *env, struct lod_device *lod,
600 struct dt_device *dt);
601 void lod_sub_fini_llog(const struct lu_env *env,
602 struct dt_device *dt, struct ptlrpc_thread *thread);
603 int lodname2mdt_index(char *lodname, __u32 *mdt_index);
604 extern void target_recovery_fini(struct obd_device *obd);
607 void lod_getref(struct lod_tgt_descs *ltd);
608 void lod_putref(struct lod_device *lod, struct lod_tgt_descs *ltd);
609 int lod_add_device(const struct lu_env *env, struct lod_device *lod,
610 char *osp, unsigned index, unsigned gen, int mdt_index,
611 char *type, int active);
612 int lod_del_device(const struct lu_env *env, struct lod_device *lod,
613 struct lod_tgt_descs *ltd, char *osp, unsigned idx,
614 unsigned gen, bool for_ost);
615 int lod_fini_tgt(const struct lu_env *env, struct lod_device *lod,
616 struct lod_tgt_descs *ltd, bool for_ost);
617 int lod_striping_load(const struct lu_env *env, struct lod_object *lo);
618 int lod_striping_reload(const struct lu_env *env, struct lod_object *lo,
619 const struct lu_buf *buf);
621 int lod_get_ea(const struct lu_env *env, struct lod_object *lo,
624 lod_get_lov_ea(const struct lu_env *env, struct lod_object *lo)
626 return lod_get_ea(env, lo, XATTR_NAME_LOV);
630 lod_get_lmv_ea(const struct lu_env *env, struct lod_object *lo)
632 return lod_get_ea(env, lo, XATTR_NAME_LMV);
636 lod_get_default_lmv_ea(const struct lu_env *env, struct lod_object *lo)
638 return lod_get_ea(env, lo, XATTR_NAME_DEFAULT_LMV);
642 lod_comp_set_init(struct lod_layout_component *entry)
644 entry->llc_flags |= LCME_FL_INIT;
648 lod_comp_unset_init(struct lod_layout_component *entry)
650 entry->llc_flags &= ~LCME_FL_INIT;
654 lod_comp_inited(const struct lod_layout_component *entry)
656 return entry->llc_flags & LCME_FL_INIT;
660 * For a PFL file, some of its component could be un-instantiated, so
661 * that their lov_ost_data_v1 array is not needed, we'd use this function
662 * to reduce the LOVEA buffer size.
664 * Note: if llc_ostlist contains value, we'd need lov_ost_data_v1 array to
665 * save the specified OST index list.
668 lod_comp_shrink_stripe_count(struct lod_layout_component *lod_comp,
672 * Need one lov_ost_data_v1 to store invalid ost_idx, please refer to
673 * lod_parse_striping()
675 if (!lod_comp_inited(lod_comp) && lod_comp->llc_ostlist.op_count == 0)
679 void lod_fix_desc(struct lov_desc *desc);
680 void lod_fix_desc_qos_maxage(__u32 *val);
681 void lod_fix_desc_pattern(__u32 *val);
682 void lod_fix_desc_stripe_count(__u32 *val);
683 void lod_fix_desc_stripe_size(__u64 *val);
684 int lod_pools_init(struct lod_device *m, struct lustre_cfg *cfg);
685 int lod_pools_fini(struct lod_device *m);
686 int lod_parse_striping(const struct lu_env *env, struct lod_object *mo,
687 const struct lu_buf *buf);
688 int lod_parse_dir_striping(const struct lu_env *env, struct lod_object *lo,
689 const struct lu_buf *buf);
690 int lod_initialize_objects(const struct lu_env *env, struct lod_object *mo,
691 struct lov_ost_data_v1 *objs, int index);
692 int lod_verify_striping(struct lod_device *d, struct lod_object *lo,
693 const struct lu_buf *buf, bool is_from_disk);
694 int lod_generate_lovea(const struct lu_env *env, struct lod_object *lo,
695 struct lov_mds_md *lmm, int *lmm_size, bool is_dir);
696 int lod_ea_store_resize(struct lod_thread_info *info, size_t size);
697 int lod_def_striping_comp_resize(struct lod_default_striping *lds, __u16 count);
698 void lod_free_def_comp_entries(struct lod_default_striping *lds);
699 void lod_free_comp_entries(struct lod_object *lo);
700 int lod_alloc_comp_entries(struct lod_object *lo, int mirror_cnt, int comp_cnt);
701 int lod_fill_mirrors(struct lod_object *lo);
704 int lod_ost_pool_add(struct ost_pool *op, __u32 idx, unsigned int min_count);
705 int lod_ost_pool_remove(struct ost_pool *op, __u32 idx);
706 int lod_ost_pool_extend(struct ost_pool *op, unsigned int min_count);
707 struct pool_desc *lod_find_pool(struct lod_device *lod, char *poolname);
708 void lod_pool_putref(struct pool_desc *pool);
709 int lod_ost_pool_free(struct ost_pool *op);
710 int lod_pool_del(struct obd_device *obd, char *poolname);
711 int lod_ost_pool_init(struct ost_pool *op, unsigned int count);
712 extern struct cfs_hash_ops pool_hash_operations;
713 int lod_check_index_in_pool(__u32 idx, struct pool_desc *pool);
714 int lod_pool_new(struct obd_device *obd, char *poolname);
715 int lod_pool_add(struct obd_device *obd, char *poolname, char *ostname);
716 int lod_pool_remove(struct obd_device *obd, char *poolname, char *ostname);
718 struct lod_obj_stripe_cb_data;
719 typedef int (*lod_obj_stripe_cb_t)(const struct lu_env *env,
720 struct lod_object *lo, struct dt_object *dt,
722 int comp_idx, int stripe_idx,
723 struct lod_obj_stripe_cb_data *data);
724 typedef bool (*lod_obj_comp_skip_cb_t)(const struct lu_env *env,
725 struct lod_object *lo, int comp_idx,
726 struct lod_obj_stripe_cb_data *data);
727 typedef int (*lod_obj_comp_cb_t)(const struct lu_env *env,
728 struct lod_object *lo, int comp_idx,
729 struct lod_obj_stripe_cb_data *data);
730 struct lod_obj_stripe_cb_data {
732 const struct lu_attr *locd_attr;
734 const struct lu_buf *locd_buf;
736 lod_obj_stripe_cb_t locd_stripe_cb;
737 lod_obj_comp_skip_cb_t locd_comp_skip_cb;
738 lod_obj_comp_cb_t locd_comp_cb;
743 int lod_prepare_create(const struct lu_env *env, struct lod_object *lo,
744 struct lu_attr *attr, const struct lu_buf *buf,
746 int qos_add_tgt(struct lod_device*, struct lod_tgt_desc *);
747 int qos_del_tgt(struct lod_device *, struct lod_tgt_desc *);
748 void lod_qos_rr_init(struct lod_qos_rr *lqr);
749 int lod_use_defined_striping(const struct lu_env *, struct lod_object *,
750 const struct lu_buf *);
751 int lod_qos_parse_config(const struct lu_env *env, struct lod_object *lo,
752 const struct lu_buf *buf);
753 int lod_qos_prep_create(const struct lu_env *env, struct lod_object *lo,
754 struct lu_attr *attr, struct thandle *th,
756 __u16 lod_comp_entry_stripe_count(struct lod_object *lo,
757 struct lod_layout_component *entry,
759 __u16 lod_get_stripe_count(struct lod_device *lod, struct lod_object *lo,
761 void lod_qos_statfs_update(const struct lu_env *env, struct lod_device *lod);
764 int lod_procfs_init(struct lod_device *lod);
765 void lod_procfs_fini(struct lod_device *lod);
768 extern struct dt_object_operations lod_obj_ops;
769 extern struct lu_object_operations lod_lu_obj_ops;
771 int lod_load_lmv_shards(const struct lu_env *env, struct lod_object *lo,
772 struct lu_buf *buf, bool resize);
773 int lod_declare_striped_create(const struct lu_env *env, struct dt_object *dt,
774 struct lu_attr *attr,
775 const struct lu_buf *lovea, struct thandle *th);
776 int lod_striped_create(const struct lu_env *env, struct dt_object *dt,
777 struct lu_attr *attr, struct dt_object_format *dof,
779 int lod_alloc_foreign_lov(struct lod_object *lo, size_t size);
780 void lod_free_foreign_lov(struct lod_object *lo);
781 void lod_striping_free_nolock(const struct lu_env *env, struct lod_object *lo);
782 void lod_striping_free(const struct lu_env *env, struct lod_object *lo);
784 int lod_obj_for_each_stripe(const struct lu_env *env, struct lod_object *lo,
786 struct lod_obj_stripe_cb_data *data);
787 int lod_comp_copy_ost_lists(struct lod_layout_component *lod_comp,
788 struct lov_user_md_v3 *v3);
790 /* lod_sub_object.c */
791 struct thandle *lod_sub_get_thandle(const struct lu_env *env,
793 const struct dt_object *sub_obj,
794 bool *record_update);
795 int lod_sub_declare_create(const struct lu_env *env, struct dt_object *dt,
796 struct lu_attr *attr,
797 struct dt_allocation_hint *hint,
798 struct dt_object_format *dof, struct thandle *th);
799 int lod_sub_create(const struct lu_env *env, struct dt_object *dt,
800 struct lu_attr *attr, struct dt_allocation_hint *hint,
801 struct dt_object_format *dof, struct thandle *th);
802 int lod_sub_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
804 int lod_sub_ref_add(const struct lu_env *env, struct dt_object *dt,
806 int lod_sub_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
808 int lod_sub_ref_del(const struct lu_env *env, struct dt_object *dt,
810 int lod_sub_declare_destroy(const struct lu_env *env, struct dt_object *dt,
812 int lod_sub_destroy(const struct lu_env *env, struct dt_object *dt,
814 int lod_sub_declare_insert(const struct lu_env *env, struct dt_object *dt,
815 const struct dt_rec *rec, const struct dt_key *key,
817 int lod_sub_insert(const struct lu_env *env, struct dt_object *dt,
818 const struct dt_rec *rec, const struct dt_key *key,
820 int lod_sub_declare_delete(const struct lu_env *env, struct dt_object *dt,
821 const struct dt_key *key, struct thandle *th);
822 int lod_sub_delete(const struct lu_env *env, struct dt_object *dt,
823 const struct dt_key *name, struct thandle *th);
824 int lod_sub_declare_xattr_set(const struct lu_env *env, struct dt_object *dt,
825 const struct lu_buf *buf, const char *name,
826 int fl, struct thandle *th);
827 int lod_sub_xattr_set(const struct lu_env *env, struct dt_object *dt,
828 const struct lu_buf *buf, const char *name, int fl,
830 int lod_sub_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
831 const struct lu_attr *attr, struct thandle *th);
832 int lod_sub_attr_set(const struct lu_env *env, struct dt_object *dt,
833 const struct lu_attr *attr, struct thandle *th);
834 int lod_sub_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
835 const char *name, struct thandle *th);
836 int lod_sub_xattr_del(const struct lu_env *env, struct dt_object *dt,
837 const char *name, struct thandle *th);
838 int lod_sub_declare_write(const struct lu_env *env, struct dt_object *dt,
839 const struct lu_buf *buf, loff_t pos,
841 ssize_t lod_sub_write(const struct lu_env *env, struct dt_object *dt,
842 const struct lu_buf *buf, loff_t *pos,
844 int lod_sub_declare_punch(const struct lu_env *env, struct dt_object *dt,
845 __u64 start, __u64 end, struct thandle *th);
846 int lod_sub_punch(const struct lu_env *env, struct dt_object *dt,
847 __u64 start, __u64 end, struct thandle *th);
849 int lod_sub_prep_llog(const struct lu_env *env, struct lod_device *lod,
850 struct dt_device *dt, int index);