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>
46 LOD_USES_ASSIGNED_STRIPE = 0,
47 LOD_USES_DEFAULT_STRIPE,
50 /* Special values to remove LOV EA from disk */
51 #define LOVEA_DELETE_VALUES(size, count, offset, pool) \
52 ((size) == 0 && (count) == 0 && \
53 (offset) == (typeof(offset))(-1) && (pool) == NULL)
55 #define LMVEA_DELETE_VALUES(count, offset) \
56 ((count) == 0 && (offset) == (typeof(offset))(-1))
58 struct lod_pool_desc {
59 char pool_name[LOV_MAXPOOLNAME + 1];
60 struct lu_tgt_pool pool_obds; /* pool members */
61 struct kref pool_refcount;
62 struct lu_qos_rr pool_rr;
63 struct rhash_head pool_hash; /* access by poolname */
64 struct list_head pool_list;
65 struct rcu_head pool_rcu;
66 struct proc_dir_entry *pool_proc_entry;
67 struct obd_device *pool_lobd; /* owner */
68 time64_t pool_spill_expire;
69 struct proc_dir_entry *pool_spill_proc_entry;
70 bool pool_spill_is_active;
71 unsigned int pool_spill_threshold_pct;
72 atomic_t pool_spill_hit;
73 char pool_spill_target[LOV_MAXPOOLNAME + 1];
74 bool pool_same_space; /* targets in pool balanced*/
75 time64_t pool_same_space_expire; /*uses ld_qos_maxage*/
76 struct dentry *pool_debugfs;
80 int lod_pool_hash_init(struct rhashtable *tbl);
81 void lod_pool_hash_destroy(struct rhashtable *tbl);
82 bool lod_pool_exists(struct lod_device *lod, char *poolname);
84 #define pool_tgt_count(p) ((p)->pool_obds.op_count)
85 #define pool_tgt_array(p) ((p)->pool_obds.op_array)
86 #define pool_tgt_rw_sem(p) ((p)->pool_obds.op_rw_sem)
88 #define lod_tgt_desc lu_tgt_desc
89 #define lod_tgt_descs lu_tgt_descs
91 #define OST_TGT(lod, index) LTD_TGT(&lod->lod_ost_descs, index)
92 #define MDT_TGT(lod, index) LTD_TGT(&lod->lod_mdt_descs, index)
94 struct lod_avoid_guide {
95 /* ids of OSSs avoid guidance */
96 __u32 *lag_oss_avoid_array;
97 /* number of filled array items */
98 unsigned int lag_oaa_count;
99 /* number of allocated array items */
100 unsigned int lag_oaa_size;
101 /* bitmap of OSTs avoid guidance */
102 unsigned long *lag_ost_avoid_bitmap;
103 u32 lag_ost_avoid_size;
104 /* how many OSTs are available for alloc */
108 #define LOD_DOM_MIN_SIZE_KB (LOV_MIN_STRIPE_SIZE >> 10)
109 #define LOD_DOM_SFS_MAX_AGE 10
112 struct dt_device lod_dt_dev;
113 struct obd_export *lod_child_exp;
114 struct dt_device *lod_child;
115 struct lprocfs_stats *lod_stats;
116 spinlock_t lod_connects_lock;
118 unsigned int lod_recovery_completed:1,
121 lod_child_got_update_log:1,
122 lod_dist_txn_check_space:1;
124 /* protect ld_active_tgt_count, ltd_active and lod_md_root */
127 /* Description of OST */
128 struct lod_tgt_descs lod_ost_descs;
129 /* Description of MDT */
130 struct lod_tgt_descs lod_mdt_descs;
132 /* Recovery thread for lod_child */
133 struct task_struct *lod_child_recovery_task;
135 /* maximum EA size underlied OSD may have */
136 unsigned int lod_osd_max_easize;
137 /* maximum size of MDT stripe for Data-on-MDT files. */
138 unsigned int lod_dom_stripesize_max_kb;
139 /* current DOM default stripe size adjusted by threshold */
140 unsigned int lod_dom_stripesize_cur_kb;
141 /* Threshold at which DOM default stripe will start decreasing */
142 __u64 lod_dom_threshold_free_mb;
144 /* Local OSD statfs cache */
145 spinlock_t lod_lsfs_lock;
146 time64_t lod_lsfs_age;
147 __u64 lod_lsfs_total_mb;
148 __u64 lod_lsfs_free_mb;
152 struct rhashtable lod_pools_hash_body; /* used for key access */
153 struct list_head lod_pool_list; /* used for sequential access */
154 struct proc_dir_entry *lod_pool_proc_entry;
155 struct proc_dir_entry *lod_spill_proc_entry;
157 enum lustre_sec_part lod_sp_me;
159 struct proc_dir_entry *lod_symlink;
160 struct dentry *lod_debugfs;
161 struct dentry *lod_pool_debugfs;
163 /* ROOT object, used to fetch FS default striping */
164 struct lod_object *lod_md_root;
166 /* max stripe count if stripe count is set to -1. 0 means unlimited */
167 unsigned int lod_max_stripecount;
168 unsigned int lod_max_mdt_stripecount;
171 #define lod_ost_bitmap lod_ost_descs.ltd_tgt_bitmap
172 #define lod_ost_count lod_ost_descs.ltd_lov_desc.ld_tgt_count
173 #define lod_ost_active_count lod_ost_descs.ltd_lov_desc.ld_active_tgt_count
174 #define lod_remote_mdt_count lod_mdt_descs.ltd_lmv_desc.ld_tgt_count
176 struct lod_layout_component {
177 struct lu_extent llc_extent;
181 __u64 llc_timestamp; /* snapshot time */
183 struct { /* plain layout V1/V3. */
185 __u32 llc_stripe_size;
186 __u16 llc_layout_gen;
187 __u16 llc_stripe_offset;
188 __u16 llc_stripe_count;
189 __u16 llc_stripes_allocated;
191 /* ost list specified by LOV_USER_MAGIC_SPECIFIC lum */
192 struct lu_tgt_pool llc_ostlist;
193 struct dt_object **llc_stripe;
194 __u32 *llc_ost_indices;
196 struct { /* Foreign mirror layout component */
199 __u32 llc_foreign_flags;
201 /* Basic HSM layout information */
202 struct lov_hsm_base llc_hsm;
203 /* Other kinds of foreign types (i.e. DAOS) */
210 struct lod_default_striping {
212 /* current layout component count */
213 __u16 lds_def_comp_cnt;
214 __u16 lds_def_mirror_cnt;
215 /* the largest comp count ever used */
216 __u32 lds_def_comp_size_cnt;
217 struct lod_layout_component *lds_def_comp_entries;
219 __u32 lds_dir_def_stripe_count;
220 __u32 lds_dir_def_stripe_offset;
221 __u32 lds_dir_def_hash_type;
222 __u8 lds_dir_def_max_inherit;
223 __u8 lds_dir_def_max_inherit_rr;
224 /* default file striping flags (LOV) */
225 __u32 lds_def_striping_set:1,
226 lds_def_striping_is_composite:1,
227 /* default dir striping flags (LMV) */
228 lds_dir_def_striping_set:1;
231 enum layout_verify_flags {
232 LVF_ALL_STALE = BIT(0), /* check not all stale mirrors */
235 struct lod_mirror_entry {
242 __u16 lme_preference;
243 /* start,end index of this mirror in ldo_comp_entries */
249 /* common fields for both files and directories */
250 struct dt_object ldo_obj;
251 struct mutex ldo_layout_mutex;
252 /* foreign file/directory */
253 __u32 ldo_is_foreign:1;
255 /* file stripe (LOV) */
257 __u32 ldo_layout_gen;
258 /* Layout component count for a regular file.
259 * It equals to 1 for non-composite layout. */
261 /* Layout mirror count for a PFLR file.
262 * It's 0 for files with non-composite layout. */
263 __u16 ldo_mirror_count;
264 struct lod_mirror_entry *ldo_mirrors;
265 __u32 ldo_is_composite:1,
269 /* directory stripe (LMV) */
271 /* Slave stripe count for striped directory. */
272 __u16 ldo_dir_stripe_count;
273 /* How many stripes allocated for a striped directory */
274 __u16 ldo_dir_stripes_allocated;
275 __u32 ldo_dir_stripe_offset;
276 __u32 ldo_dir_hash_type;
277 __u32 ldo_dir_migrate_offset;
278 __u32 ldo_dir_migrate_hash;
279 __u32 ldo_dir_layout_version;
280 /* Is a slave stripe of striped directory? */
281 __u32 ldo_dir_slave_stripe:1,
283 /* the stripe has been loaded */
284 ldo_dir_stripe_loaded:1;
286 * This default LMV is parent default LMV, which will be
287 * used in child creation, and it's not cached, so this
288 * field is invalid after create, make sure it's used by
289 * lod_dir_striping_create_internal() only.
291 struct lod_default_striping *ldo_def_striping;
296 /* foreign/raw format LOV */
297 char *ldo_foreign_lov;
298 size_t ldo_foreign_lov_size;
301 /* foreign/raw format LMV */
302 char *ldo_foreign_lmv;
303 size_t ldo_foreign_lmv_size;
306 /* file stripe (LOV) */
307 struct lod_layout_component *ldo_comp_entries;
308 /* slave stripes of striped directory (LMV) */
309 struct dt_object **ldo_stripe;
314 #define ldo_dir_split_offset ldo_dir_migrate_offset
315 #define ldo_dir_split_hash ldo_dir_migrate_hash
317 #define lod_foreach_mirror_comp(comp, lo, mirror_idx) \
318 for (comp = &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_start]; \
319 comp <= &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_end]; \
322 static inline bool lod_is_flr(const struct lod_object *lo)
324 if (!lo->ldo_is_composite)
327 return (lo->ldo_flr_state & LCM_FL_FLR_MASK) != LCM_FL_NONE;
330 static inline bool lod_is_hsm(const struct lod_layout_component *lod_comp)
332 return lod_comp->llc_magic == LOV_MAGIC_FOREIGN &&
333 lov_hsm_type_supported(lod_comp->llc_type);
336 static inline bool lod_is_splitting(const struct lod_object *lo)
338 return lmv_hash_is_splitting(lo->ldo_dir_hash_type);
341 static inline bool lod_is_migrating(const struct lod_object *lo)
343 return lmv_hash_is_migrating(lo->ldo_dir_hash_type);
346 static inline bool lod_is_layout_changing(const struct lod_object *lo)
348 return lmv_hash_is_layout_changing(lo->ldo_dir_hash_type);
351 static inline int lod_set_pool(char **pool, const char *new_pool)
355 if (*pool == new_pool)
359 len = strlen(*pool) + 1;
360 OBD_FREE(*pool, len);
363 if (new_pool != NULL) {
364 len = strlen(new_pool) + 1;
365 OBD_ALLOC(*pool, len);
368 strscpy(*pool, new_pool, len);
373 static inline int lod_obj_set_pool(struct lod_object *lo, int i,
374 const char *new_pool)
376 return lod_set_pool(&lo->ldo_comp_entries[i].llc_pool, new_pool);
380 * Create new layout generation.
382 * The only requirement for layout generation is that it changes when
383 * the layout is modified, so a circular counter is sufficient for the
384 * low rate of layout modifications.
386 * Layout generation is also used to generate unique component ID.
387 * To detect generation overflow, we preserve the highest bit of the
388 * generation when it wrapped.
390 static inline void lod_obj_inc_layout_gen(struct lod_object *lo)
392 __u32 preserve = lo->ldo_layout_gen & ~LCME_ID_MASK;
393 lo->ldo_layout_gen++;
394 lo->ldo_layout_gen |= preserve;
395 /* Zero is not a valid generation */
396 if (unlikely((lo->ldo_layout_gen & LCME_ID_MASK) == 0)) {
397 lo->ldo_layout_gen++;
398 lo->ldo_layout_gen &= ~LU_LAYOUT_RESYNC;
403 struct dt_object *lit_obj; /* object from the layer below */
404 /* stripe offset of iteration */
405 __u32 lit_stripe_index;
407 struct dt_it *lit_it; /* iterator from the layer below */
410 #define LOD_OBJS_INTRANS 4
411 struct lod_thread_info {
412 /* per-thread buffer for LOV EA, may be vmalloc'd */
414 __u32 lti_ea_store_size;
415 /* per-thread buffer for LMV EA */
416 struct lu_buf lti_buf;
417 struct ost_id lti_ostid;
418 struct lu_fid lti_fid;
419 struct obd_statfs lti_osfs;
420 struct lu_attr lti_attr;
421 struct lod_it lti_it;
422 struct ldlm_res_id lti_res_id;
423 /* used to hold lu_dirent, sizeof(struct lu_dirent) + NAME_MAX */
424 char lti_key[sizeof(struct lu_dirent) +
426 struct dt_object_format lti_format;
427 struct lu_name lti_name;
428 struct lu_buf lti_linkea_buf;
429 struct dt_insert_rec lti_dt_rec;
430 struct llog_catid lti_cid;
431 struct llog_cookie lti_cookie;
432 struct lustre_cfg lti_lustre_cfg;
433 /* used to store parent default striping in create */
434 struct lod_default_striping lti_def_striping;
435 struct filter_fid lti_ff;
437 size_t lti_comp_size;
439 struct lu_attr lti_layout_attr;
440 /* object allocation avoid guide info */
441 struct lod_avoid_guide lti_avoid;
442 union lmv_mds_md lti_lmv;
443 struct dt_allocation_hint lti_ah;
445 struct lod_object *lti_obj[LOD_OBJS_INTRANS];
446 __u32 lti_gen[LOD_OBJS_INTRANS];
450 * \retval 0 object's layout hasn't changed in the transaction
451 * \retval > 0 object's layout has changed
452 * \retval -ENOENT object's layout gen hasn't saved in transatoin
456 lod_check_layout_gen_intrans(struct lod_thread_info *info,
457 struct lod_object *lo)
462 for (i = 0; i < info->lti_obj_count; i++) {
463 if (info->lti_obj[i] != lo)
466 if (info->lti_gen[i] == lo->ldo_layout_gen)
477 lod_save_layout_gen_intrans(struct lod_thread_info *info, struct lod_object *lo)
479 struct lu_object *luo = &lo->ldo_obj.do_lu;
482 rc = lod_check_layout_gen_intrans(info, lo);
487 "%s: obj %p gen changed from %d to %d in trans declaration\n",
488 luo->lo_dev->ld_obd->obd_name, lo, info->lti_gen[rc - 1],
493 if (unlikely(info->lti_obj_count == LOD_OBJS_INTRANS)) {
495 " save too many lod_object (%d) in one transaction, use bigger LOD_OBJS_INTRANS: rc = %d\n",
496 luo->lo_dev->ld_obd->obd_name,
497 PFID(lu_object_fid(luo)), LOD_OBJS_INTRANS, -E2BIG);
501 info->lti_obj[info->lti_obj_count] = lo;
502 info->lti_gen[info->lti_obj_count] = lo->ldo_layout_gen;
503 info->lti_obj_count++;
508 extern const struct lu_device_operations lod_lu_ops;
510 static inline int lu_device_is_lod(struct lu_device *d)
512 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &lod_lu_ops);
515 static inline struct lod_device* lu2lod_dev(struct lu_device *d)
517 LASSERT(lu_device_is_lod(d));
518 return container_of_safe(d, struct lod_device, lod_dt_dev.dd_lu_dev);
521 static inline struct lu_device *lod2lu_dev(struct lod_device *d)
523 return &d->lod_dt_dev.dd_lu_dev;
526 static inline struct obd_device *lod2obd(struct lod_device *d)
528 return d->lod_dt_dev.dd_lu_dev.ld_obd;
531 static inline struct lod_device *dt2lod_dev(struct dt_device *d)
533 LASSERT(lu_device_is_lod(&d->dd_lu_dev));
534 return container_of(d, struct lod_device, lod_dt_dev);
537 static inline struct lod_object *lu2lod_obj(struct lu_object *o)
539 LASSERT(ergo(o != NULL, lu_device_is_lod(o->lo_dev)));
540 return container_of_safe(o, struct lod_object, ldo_obj.do_lu);
543 static inline struct lu_object *lod2lu_obj(struct lod_object *obj)
545 return &obj->ldo_obj.do_lu;
548 static inline const struct lu_fid *lod_object_fid(struct lod_object *obj)
550 return lu_object_fid(lod2lu_obj(obj));
553 static inline struct lod_object *lod_obj(const struct lu_object *o)
555 LASSERT(lu_device_is_lod(o->lo_dev));
556 return container_of(o, struct lod_object, ldo_obj.do_lu);
559 static inline struct lod_object *lod_dt_obj(const struct dt_object *d)
561 return lod_obj(&d->do_lu);
564 static inline struct dt_object* lod_object_child(struct lod_object *o)
566 return container_of(lu_object_next(lod2lu_obj(o)),
567 struct dt_object, do_lu);
570 static inline bool lod_obj_is_striped(struct dt_object *dt)
572 struct lod_object *lo = lod_dt_obj(dt);
576 if (!dt_object_exists(dt_object_child(dt)))
579 mutex_lock(&lo->ldo_layout_mutex);
581 if (S_ISDIR(dt->do_lu.lo_header->loh_attr)) {
582 rc = lo->ldo_dir_stripe_count != 0;
583 } else if (lo->ldo_is_foreign) {
586 for (i = 0; i < lo->ldo_comp_cnt; i++) {
587 if (lo->ldo_comp_entries[i].llc_magic ==
590 if (lo->ldo_comp_entries[i].llc_stripe == NULL)
592 LASSERT(lo->ldo_comp_entries[i].llc_stripe_count > 0);
598 mutex_unlock(&lo->ldo_layout_mutex);
602 extern struct lu_context_key lod_thread_key;
604 static inline struct lod_thread_info *lod_env_info(const struct lu_env *env)
606 struct lod_thread_info *info;
607 info = lu_context_key_get(&env->le_ctx, &lod_thread_key);
612 static inline struct lu_name *
613 lod_name_get(const struct lu_env *env, const void *area, int len)
615 struct lu_name *lname;
617 lname = &lod_env_info(env)->lti_name;
618 lname->ln_name = area;
619 lname->ln_namelen = len;
623 static inline struct lod_default_striping *
624 lod_lds_buf_get(const struct lu_env *env)
626 struct lod_thread_info *info = lod_env_info(env);
628 info->lti_def_striping.lds_def_striping_set = 0;
629 info->lti_def_striping.lds_dir_def_striping_set = 0;
630 return &info->lti_def_striping;
633 static inline void lod_layout_get_pool(struct lod_layout_component *entries,
634 int count, char *pool, int len)
638 for (i = 0; i < count; i++) {
639 if (entries[i].llc_magic == LOV_MAGIC_FOREIGN)
641 if (entries[i].llc_pool != NULL) {
642 strscpy(pool, entries[i].llc_pool, len);
648 #define lod_foreach_mdt(lod, mdt) ltd_foreach_tgt(&(lod)->lod_mdt_descs, mdt)
649 #define lod_foreach_ost(lod, ost) ltd_foreach_tgt(&(lod)->lod_ost_descs, ost)
652 extern struct kmem_cache *lod_object_kmem;
653 int lod_fld_lookup(const struct lu_env *env, struct lod_device *lod,
654 const struct lu_fid *fid, __u32 *tgt, int *flags);
655 int lod_sub_init_llog(const struct lu_env *env, struct lod_device *lod,
656 struct dt_device *dt);
657 void lod_sub_fini_llog(const struct lu_env *env,
658 struct dt_device *dt, struct task_struct **taskp);
659 int lodname2mdt_index(char *lodname, __u32 *mdt_index);
660 extern void target_recovery_fini(struct obd_device *obd);
663 void lod_getref(struct lod_tgt_descs *ltd);
664 void lod_putref(struct lod_device *lod, struct lod_tgt_descs *ltd);
665 int lod_add_device(const struct lu_env *env, struct lod_device *lod,
666 char *osp, unsigned index, unsigned gen, int mdt_index,
667 char *type, int active);
668 int lod_del_device(const struct lu_env *env, struct lod_device *lod,
669 struct lod_tgt_descs *ltd, char *osp, unsigned int idx,
671 int validate_lod_and_idx(struct lod_device *lod, __u32 idx);
672 int lod_fini_tgt(const struct lu_env *env, struct lod_device *lod,
673 struct lod_tgt_descs *ltd);
674 int lod_striping_load(const struct lu_env *env, struct lod_object *lo);
675 int lod_striping_reload(const struct lu_env *env, struct lod_object *lo,
676 const struct lu_buf *buf, enum layout_verify_flags lvf);
677 void lod_dom_stripesize_recalc(struct lod_device *d);
679 int lod_get_ea(const struct lu_env *env, struct lod_object *lo,
682 lod_get_lov_ea(const struct lu_env *env, struct lod_object *lo)
684 return lod_get_ea(env, lo, XATTR_NAME_LOV);
688 lod_get_lmv_ea(const struct lu_env *env, struct lod_object *lo)
690 return lod_get_ea(env, lo, XATTR_NAME_LMV);
694 lod_get_default_lmv_ea(const struct lu_env *env, struct lod_object *lo)
696 return lod_get_ea(env, lo, XATTR_NAME_DEFAULT_LMV);
700 lod_comp_set_init(struct lod_layout_component *entry)
702 entry->llc_flags |= LCME_FL_INIT;
706 lod_comp_unset_init(struct lod_layout_component *entry)
708 entry->llc_flags &= ~LCME_FL_INIT;
712 lod_comp_inited(const struct lod_layout_component *entry)
714 return entry->llc_flags & LCME_FL_INIT;
718 * For a PFL file, some of its component could be un-instantiated, so
719 * that their lov_ost_data_v1 array is not needed, we'd use this function
720 * to reduce the LOVEA buffer size.
722 * Note: if llc_ostlist contains value, we'd need lov_ost_data_v1 array to
723 * save the specified OST index list.
726 lod_comp_shrink_stripe_count(struct lod_layout_component *lod_comp,
730 * Need one lov_ost_data_v1 to store invalid ost_idx, please refer to
731 * lod_parse_striping()
733 if (!lod_comp_inited(lod_comp) && lod_comp->llc_ostlist.op_count == 0)
737 void lod_fix_desc(struct lov_desc *desc);
738 void lod_fix_desc_qos_maxage(__u32 *val);
739 void lod_fix_desc_pattern(__u32 *val);
740 void lod_fix_desc_stripe_count(__u32 *val);
741 void lod_fix_desc_stripe_size(__u64 *val);
742 void lod_fix_lmv_desc_pattern(__u32 *val);
743 int lod_pools_init(struct lod_device *m, struct lustre_cfg *cfg);
744 int lod_pools_fini(struct lod_device *m);
745 int lod_parse_striping(const struct lu_env *env, struct lod_object *mo,
746 const struct lu_buf *buf, enum layout_verify_flags lvf);
747 int lod_parse_dir_striping(const struct lu_env *env, struct lod_object *lo,
748 const struct lu_buf *buf);
749 int lod_initialize_objects(const struct lu_env *env, struct lod_object *mo,
750 struct lov_ost_data_v1 *objs, int index);
751 int lod_verify_striping(const struct lu_env *env, struct lod_device *d,
752 struct lod_object *lo, const struct lu_buf *buf,
754 int lod_generate_lovea(const struct lu_env *env, struct lod_object *lo,
755 struct lov_mds_md *lmm, int *lmm_size, bool is_dir);
756 int lod_ea_store_resize(struct lod_thread_info *info, size_t size);
757 int lod_def_striping_comp_resize(struct lod_default_striping *lds, __u16 count);
758 void lod_free_def_comp_entries(struct lod_default_striping *lds);
759 void lod_free_comp_entries(struct lod_object *lo);
760 int lod_alloc_comp_entries(struct lod_object *lo, int mirror_cnt, int comp_cnt);
761 int lod_fill_mirrors(struct lod_object *lo);
762 int lod_init_comp_foreign(struct lod_layout_component *lod_comp, void *lmm);
765 struct lod_pool_desc *lod_find_pool(struct lod_device *lod, char *poolname);
766 void lod_pool_putref(struct lod_pool_desc *pool);
767 int lod_pool_del(struct obd_device *obd, char *poolname);
768 int lod_check_index_in_pool(__u32 idx, struct lod_pool_desc *pool);
769 int lod_pool_new(struct obd_device *obd, char *poolname);
770 int lod_pool_add(struct obd_device *obd, char *poolname, char *ostname);
771 int lod_pool_remove(struct obd_device *obd, char *poolname, char *ostname);
773 struct lod_obj_stripe_cb_data;
774 typedef int (*lod_obj_stripe_cb_t)(const struct lu_env *env,
775 struct lod_object *lo, struct dt_object *dt,
777 int comp_idx, int stripe_idx,
778 struct lod_obj_stripe_cb_data *data);
779 typedef bool (*lod_obj_comp_skip_cb_t)(const struct lu_env *env,
780 struct lod_object *lo, int comp_idx,
781 struct lod_obj_stripe_cb_data *data);
782 typedef int (*lod_obj_comp_cb_t)(const struct lu_env *env,
783 struct lod_object *lo, int comp_idx,
784 struct lod_obj_stripe_cb_data *data);
785 struct lod_obj_stripe_cb_data {
787 const struct lu_attr *locd_attr;
789 const struct lu_buf *locd_buf;
791 lod_obj_stripe_cb_t locd_stripe_cb;
792 lod_obj_comp_skip_cb_t locd_comp_skip_cb;
793 lod_obj_comp_cb_t locd_comp_cb;
798 int lod_mdt_alloc_qos(const struct lu_env *env, struct lod_object *lo,
799 struct dt_object **stripes, u32 stripe_idx,
801 int lod_mdt_alloc_rr(const struct lu_env *env, struct lod_object *lo,
802 struct dt_object **stripes, u32 stripe_idx,
804 int lod_prepare_create(const struct lu_env *env, struct lod_object *lo,
805 struct lu_attr *attr, const struct lu_buf *buf,
807 int lod_use_defined_striping(const struct lu_env *, struct lod_object *,
808 const struct lu_buf *);
809 int lod_qos_parse_config(const struct lu_env *env, struct lod_object *lo,
810 const struct lu_buf *buf);
811 int lod_qos_prep_create(const struct lu_env *env, struct lod_object *lo,
812 struct lu_attr *attr, struct thandle *th,
813 int comp_idx, __u64 reserve);
814 __u16 lod_comp_entry_stripe_count(struct lod_object *lo,
815 int comp_idx, bool is_dir);
816 __u16 lod_get_stripe_count_plain(struct lod_device *lod, struct lod_object *lo,
817 __u16 stripe_count, bool overstriping,
818 enum lod_uses_hint *flags);
819 __u16 lod_get_stripe_count(struct lod_device *lod, struct lod_object *lo,
820 int comp_idx, __u16 stripe_count, bool overstriping,
821 enum lod_uses_hint *flags);
822 void lod_qos_statfs_update(const struct lu_env *env, struct lod_device *lod,
823 struct lu_tgt_descs *ltd);
826 int lod_procfs_init(struct lod_device *lod);
827 void lod_procfs_fini(struct lod_device *lod);
830 extern const struct dt_object_operations lod_obj_ops;
831 extern const struct lu_object_operations lod_lu_obj_ops;
833 int lod_load_lmv_shards(const struct lu_env *env, struct lod_object *lo,
834 struct lu_buf *buf, bool resize);
835 int lod_declare_striped_create(const struct lu_env *env, struct dt_object *dt,
836 struct lu_attr *attr,
837 const struct lu_buf *lovea, struct thandle *th);
838 int lod_striped_create(const struct lu_env *env, struct dt_object *dt,
839 struct lu_attr *attr, struct dt_object_format *dof,
841 int lod_alloc_foreign_lov(struct lod_object *lo, size_t size);
842 void lod_free_foreign_lov(struct lod_object *lo);
843 void lod_striping_free_nolock(const struct lu_env *env, struct lod_object *lo);
844 void lod_striping_free(const struct lu_env *env, struct lod_object *lo);
846 int lod_obj_for_each_stripe(const struct lu_env *env, struct lod_object *lo,
848 struct lod_obj_stripe_cb_data *data);
849 int lod_comp_copy_ost_lists(struct lod_layout_component *lod_comp,
850 struct lov_user_md_v3 *v3);
851 void lod_adjust_stripe_size(struct lod_layout_component *comp,
852 __u32 def_stripe_size);
854 /* lod_sub_object.c */
855 struct thandle *lod_sub_get_thandle(const struct lu_env *env,
857 const struct dt_object *sub_obj,
858 bool *record_update);
859 int lod_sub_declare_create(const struct lu_env *env, struct dt_object *dt,
860 struct lu_attr *attr,
861 struct dt_allocation_hint *hint,
862 struct dt_object_format *dof, struct thandle *th);
863 int lod_sub_create(const struct lu_env *env, struct dt_object *dt,
864 struct lu_attr *attr, struct dt_allocation_hint *hint,
865 struct dt_object_format *dof, struct thandle *th);
866 int lod_sub_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
868 int lod_sub_ref_add(const struct lu_env *env, struct dt_object *dt,
870 int lod_sub_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
872 int lod_sub_ref_del(const struct lu_env *env, struct dt_object *dt,
874 int lod_sub_declare_destroy(const struct lu_env *env, struct dt_object *dt,
876 int lod_sub_destroy(const struct lu_env *env, struct dt_object *dt,
878 int lod_sub_declare_insert(const struct lu_env *env, struct dt_object *dt,
879 const struct dt_rec *rec, const struct dt_key *key,
881 int lod_sub_insert(const struct lu_env *env, struct dt_object *dt,
882 const struct dt_rec *rec, const struct dt_key *key,
884 int lod_sub_declare_delete(const struct lu_env *env, struct dt_object *dt,
885 const struct dt_key *key, struct thandle *th);
886 int lod_sub_delete(const struct lu_env *env, struct dt_object *dt,
887 const struct dt_key *name, struct thandle *th);
888 int lod_sub_declare_xattr_set(const struct lu_env *env, struct dt_object *dt,
889 const struct lu_buf *buf, const char *name,
890 int fl, struct thandle *th);
891 int lod_sub_xattr_set(const struct lu_env *env, struct dt_object *dt,
892 const struct lu_buf *buf, const char *name, int fl,
894 int lod_sub_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
895 const struct lu_attr *attr, struct thandle *th);
896 int lod_sub_attr_set(const struct lu_env *env, struct dt_object *dt,
897 const struct lu_attr *attr, struct thandle *th);
898 int lod_sub_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
899 const char *name, struct thandle *th);
900 int lod_sub_xattr_del(const struct lu_env *env, struct dt_object *dt,
901 const char *name, struct thandle *th);
902 int lod_sub_declare_write(const struct lu_env *env, struct dt_object *dt,
903 const struct lu_buf *buf, loff_t pos,
905 ssize_t lod_sub_write(const struct lu_env *env, struct dt_object *dt,
906 const struct lu_buf *buf, loff_t *pos,
908 int lod_sub_declare_punch(const struct lu_env *env, struct dt_object *dt,
909 __u64 start, __u64 end, struct thandle *th);
910 int lod_sub_punch(const struct lu_env *env, struct dt_object *dt,
911 __u64 start, __u64 end, struct thandle *th);
913 int lod_sub_prep_llog(const struct lu_env *env, struct lod_device *lod,
914 struct dt_device *dt, int index);
915 void lod_check_and_spill_pool(const struct lu_env *env, struct lod_device *lod,
917 void lod_spill_target_refresh(const struct lu_env *env, struct lod_device *lod,
918 struct lod_pool_desc *pool);
919 struct lod_pool_desc *lod_pool_find(struct lod_device *lod, char *poolname);
920 int lod_tgt_weights_seq_show(struct seq_file *m, struct lod_device *lod,
921 struct lu_tgt_pool *tgts, bool mdt);
922 int lod_tgt_weights_seq_write(struct seq_file *m, const char __user *buf,
923 size_t count, struct lod_device *lod,
924 struct lu_tgt_pool *tgts, bool is_mdt);
925 extern struct lprocfs_vars lprocfs_lod_spill_vars[];