1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
32 * Copyright (c) 2011, 2012, Whamcloud, Inc.
35 * This file is part of Lustre, http://www.lustre.org/
36 * Lustre is a trademark of Sun Microsystems, Inc.
38 * lustre/include/md_object.h
40 * Extention of lu_object.h for metadata objects
43 #ifndef _LUSTRE_MD_OBJECT_H
44 #define _LUSTRE_MD_OBJECT_H
47 * Sub-class of lu_object with methods common for "meta-data" objects in MDT
50 * Meta-data objects implement namespace operations: you can link, unlink
51 * them, and treat them as directories.
53 * Examples: mdt, cmm, and mdt are implementations of md interface.
59 * super-class definitions.
61 #include <dt_object.h>
64 /* LU-1051, temperary solution to reduce llog credits */
65 #define DECLARE_LLOG_REWRITE 0
66 #define DECLARE_LLOG_WRITE INT_MAX
69 struct md_device_operations;
93 cfs_group_info_t *mu_ginfo;
94 struct md_identity *mu_identity;
101 /** there are at most 5 fids in one operation, see rename, NOTE the last one
102 * is a temporary one used for is_subdir() */
106 struct lu_fid mc_fid[MD_CAPAINFO_MAX];
107 struct lustre_capa *mc_capa[MD_CAPAINFO_MAX];
111 struct obd_export *mq_exp;
115 * Implemented in mdd/mdd_handler.c.
117 * XXX should be moved into separate .h/.c together with all md security
118 * related definitions.
120 struct md_ucred *md_ucred(const struct lu_env *env);
121 struct md_capainfo *md_capainfo(const struct lu_env *env);
122 struct md_quota *md_quota(const struct lu_env *env);
124 /** metadata attributes */
128 MA_COOKIE = (1 << 2),
131 MA_ACL_DEF = (1 << 5),
132 MA_LOV_DEF = (1 << 6),
133 MA_LAY_GEN = (1 << 7),
153 MDT_REG_LOCK = (1 << 0),
154 MDT_PDO_LOCK = (1 << 1)
159 __u32 mh_archive_number;
162 #define IOEPOCH_INVAL 0
175 struct lu_attr ma_attr;
176 struct lu_fid ma_pfid;
177 struct md_hsm ma_hsm;
178 struct lov_mds_md *ma_lmm;
179 struct lmv_stripe_md *ma_lmv;
181 struct llog_cookie *ma_cookie;
182 struct lustre_capa *ma_capa;
183 struct md_som_data *ma_som;
191 /** Additional parameters for create */
194 /** symlink target */
195 const char *sp_symname;
196 /** parent FID for cross-ref mkdir */
197 const struct lu_fid *sp_pfid;
198 /** eadata for regular files */
200 /** lov objs exist already */
201 const struct lu_fid *fid;
206 /** don't create lov objects or llog cookie - this replay */
209 /** Create flag from client: such as MDS_OPEN_CREAT, and others. */
212 /** Should mdd do lookup sanity check or not. */
215 /** Current lock mode for parent dir where create is performing. */
216 mdl_mode_t sp_cr_mode;
218 /** Check for split */
221 /** to create directory */
222 const struct dt_index_features *sp_feat;
226 * Operations implemented for each md object (both directory and leaf).
228 struct md_object_operations {
229 int (*moo_permission)(const struct lu_env *env,
230 struct md_object *pobj, struct md_object *cobj,
231 struct md_attr *attr, int mask);
233 int (*moo_attr_get)(const struct lu_env *env, struct md_object *obj,
234 struct md_attr *attr);
236 int (*moo_attr_set)(const struct lu_env *env, struct md_object *obj,
237 const struct md_attr *attr);
239 int (*moo_xattr_get)(const struct lu_env *env, struct md_object *obj,
240 struct lu_buf *buf, const char *name);
242 int (*moo_xattr_list)(const struct lu_env *env, struct md_object *obj,
245 int (*moo_xattr_set)(const struct lu_env *env, struct md_object *obj,
246 const struct lu_buf *buf, const char *name,
249 int (*moo_xattr_del)(const struct lu_env *env, struct md_object *obj,
252 /** \retval number of bytes actually read upon success */
253 int (*moo_readpage)(const struct lu_env *env, struct md_object *obj,
254 const struct lu_rdpg *rdpg);
256 int (*moo_readlink)(const struct lu_env *env, struct md_object *obj,
258 int (*moo_changelog)(const struct lu_env *env,
259 enum changelog_rec_type type, int flags,
260 struct md_object *obj);
261 /** part of cross-ref operation */
262 int (*moo_object_create)(const struct lu_env *env,
263 struct md_object *obj,
264 const struct md_op_spec *spec,
267 int (*moo_ref_add)(const struct lu_env *env,
268 struct md_object *obj,
269 const struct md_attr *ma);
271 int (*moo_ref_del)(const struct lu_env *env,
272 struct md_object *obj,
275 int (*moo_open)(const struct lu_env *env,
276 struct md_object *obj, int flag);
278 int (*moo_close)(const struct lu_env *env, struct md_object *obj,
279 struct md_attr *ma, int mode);
281 int (*moo_capa_get)(const struct lu_env *, struct md_object *,
282 struct lustre_capa *, int renewal);
284 int (*moo_object_sync)(const struct lu_env *, struct md_object *);
285 int (*moo_path)(const struct lu_env *env, struct md_object *obj,
286 char *path, int pathlen, __u64 *recno, int *linkno);
287 int (*moo_file_lock)(const struct lu_env *env, struct md_object *obj,
288 struct lov_mds_md *lmm, struct ldlm_extent *extent,
289 struct lustre_handle *lockh);
290 int (*moo_file_unlock)(const struct lu_env *env, struct md_object *obj,
291 struct lov_mds_md *lmm,
292 struct lustre_handle *lockh);
296 * Operations implemented for each directory object.
298 struct md_dir_operations {
299 int (*mdo_is_subdir) (const struct lu_env *env, struct md_object *obj,
300 const struct lu_fid *fid, struct lu_fid *sfid);
302 int (*mdo_lookup)(const struct lu_env *env, struct md_object *obj,
303 const struct lu_name *lname, struct lu_fid *fid,
304 struct md_op_spec *spec);
306 mdl_mode_t (*mdo_lock_mode)(const struct lu_env *env,
307 struct md_object *obj,
310 int (*mdo_create)(const struct lu_env *env, struct md_object *pobj,
311 const struct lu_name *lname, struct md_object *child,
312 struct md_op_spec *spec,
315 /** This method is used for creating data object for this meta object*/
316 int (*mdo_create_data)(const struct lu_env *env, struct md_object *p,
318 const struct md_op_spec *spec,
321 int (*mdo_rename)(const struct lu_env *env, struct md_object *spobj,
322 struct md_object *tpobj, const struct lu_fid *lf,
323 const struct lu_name *lsname, struct md_object *tobj,
324 const struct lu_name *ltname, struct md_attr *ma);
326 int (*mdo_link)(const struct lu_env *env, struct md_object *tgt_obj,
327 struct md_object *src_obj, const struct lu_name *lname,
330 int (*mdo_unlink)(const struct lu_env *env, struct md_object *pobj,
331 struct md_object *cobj, const struct lu_name *lname,
334 /** This method is used to compare a requested layout to an existing
335 * layout (struct lov_mds_md_v1/3 vs struct lov_mds_md_v1/3) */
336 int (*mdo_lum_lmm_cmp)(const struct lu_env *env,
337 struct md_object *cobj,
338 const struct md_op_spec *spec,
341 /** partial ops for cross-ref case */
342 int (*mdo_name_insert)(const struct lu_env *env,
343 struct md_object *obj,
344 const struct lu_name *lname,
345 const struct lu_fid *fid,
346 const struct md_attr *ma);
348 int (*mdo_name_remove)(const struct lu_env *env,
349 struct md_object *obj,
350 const struct lu_name *lname,
351 const struct md_attr *ma);
353 int (*mdo_rename_tgt)(const struct lu_env *env, struct md_object *pobj,
354 struct md_object *tobj, const struct lu_fid *fid,
355 const struct lu_name *lname, struct md_attr *ma);
358 struct md_device_operations {
359 /** meta-data device related handlers. */
360 int (*mdo_root_get)(const struct lu_env *env, struct md_device *m,
363 int (*mdo_maxsize_get)(const struct lu_env *env, struct md_device *m,
364 int *md_size, int *cookie_size);
366 int (*mdo_statfs)(const struct lu_env *env, struct md_device *m,
369 int (*mdo_init_capa_ctxt)(const struct lu_env *env, struct md_device *m,
370 int mode, unsigned long timeout, __u32 alg,
371 struct lustre_capa_key *keys);
373 int (*mdo_update_capa_key)(const struct lu_env *env,
375 struct lustre_capa_key *key);
377 int (*mdo_llog_ctxt_get)(const struct lu_env *env,
378 struct md_device *m, int idx, void **h);
380 int (*mdo_iocontrol)(const struct lu_env *env, struct md_device *m,
381 unsigned int cmd, int len, void *data);
383 #ifdef HAVE_QUOTA_SUPPORT
384 struct md_quota_operations {
385 int (*mqo_notify)(const struct lu_env *env,
386 struct md_device *m);
388 int (*mqo_setup)(const struct lu_env *env,
392 int (*mqo_cleanup)(const struct lu_env *env,
393 struct md_device *m);
395 int (*mqo_recovery)(const struct lu_env *env,
396 struct md_device *m);
398 int (*mqo_check)(const struct lu_env *env,
402 int (*mqo_on)(const struct lu_env *env,
406 int (*mqo_off)(const struct lu_env *env,
410 int (*mqo_setinfo)(const struct lu_env *env,
414 struct obd_dqinfo *dqinfo);
416 int (*mqo_getinfo)(const struct lu_env *env,
417 const struct md_device *m,
420 struct obd_dqinfo *dqinfo);
422 int (*mqo_setquota)(const struct lu_env *env,
426 struct obd_dqblk *dqblk);
428 int (*mqo_getquota)(const struct lu_env *env,
429 const struct md_device *m,
432 struct obd_dqblk *dqblk);
434 int (*mqo_getoinfo)(const struct lu_env *env,
435 const struct md_device *m,
438 struct obd_dqinfo *dqinfo);
440 int (*mqo_getoquota)(const struct lu_env *env,
441 const struct md_device *m,
444 struct obd_dqblk *dqblk);
446 int (*mqo_invalidate)(const struct lu_env *env,
450 int (*mqo_finvalidate)(const struct lu_env *env,
457 enum md_upcall_event {
458 /** Sync the md layer*/
459 MD_LOV_SYNC = (1 << 0),
460 /** Just for split, no need trans, for replay */
461 MD_NO_TRANS = (1 << 1),
462 MD_LOV_CONFIG = (1 << 2),
463 /** Trigger quota recovery */
464 MD_LOV_QUOTA = (1 << 3)
468 /** this lock protects upcall using against its removal
469 * read lock is for usage the upcall, write - for init/fini */
470 cfs_rw_semaphore_t mu_upcall_sem;
471 /** device to call, upper layer normally */
472 struct md_device *mu_upcall_dev;
473 /** upcall function */
474 int (*mu_upcall)(const struct lu_env *env, struct md_device *md,
475 enum md_upcall_event ev, void *data);
479 struct lu_device md_lu_dev;
480 const struct md_device_operations *md_ops;
481 struct md_upcall md_upcall;
484 static inline void md_upcall_init(struct md_device *m, void *upcl)
486 cfs_init_rwsem(&m->md_upcall.mu_upcall_sem);
487 m->md_upcall.mu_upcall_dev = NULL;
488 m->md_upcall.mu_upcall = upcl;
491 static inline void md_upcall_dev_set(struct md_device *m, struct md_device *up)
493 cfs_down_write(&m->md_upcall.mu_upcall_sem);
494 m->md_upcall.mu_upcall_dev = up;
495 cfs_up_write(&m->md_upcall.mu_upcall_sem);
498 static inline void md_upcall_fini(struct md_device *m)
500 cfs_down_write(&m->md_upcall.mu_upcall_sem);
501 m->md_upcall.mu_upcall_dev = NULL;
502 m->md_upcall.mu_upcall = NULL;
503 cfs_up_write(&m->md_upcall.mu_upcall_sem);
506 static inline int md_do_upcall(const struct lu_env *env, struct md_device *m,
507 enum md_upcall_event ev, void *data)
510 cfs_down_read(&m->md_upcall.mu_upcall_sem);
511 if (m->md_upcall.mu_upcall_dev != NULL &&
512 m->md_upcall.mu_upcall_dev->md_upcall.mu_upcall != NULL) {
513 rc = m->md_upcall.mu_upcall_dev->md_upcall.mu_upcall(env,
514 m->md_upcall.mu_upcall_dev,
517 cfs_up_read(&m->md_upcall.mu_upcall_sem);
522 struct lu_object mo_lu;
523 const struct md_object_operations *mo_ops;
524 const struct md_dir_operations *mo_dir_ops;
531 struct lu_site ms_lu;
533 * mds number of this site.
537 * Fid location database
539 struct lu_server_fld *ms_server_fld;
540 struct lu_client_fld *ms_client_fld;
545 struct lu_server_seq *ms_server_seq;
548 * Controller Seq Manager
550 struct lu_server_seq *ms_control_seq;
551 struct obd_export *ms_control_exp;
556 struct lu_client_seq *ms_client_seq;
559 static inline int lu_device_is_md(const struct lu_device *d)
561 return ergo(d != NULL, d->ld_type->ldt_tags & LU_DEVICE_MD);
564 static inline struct md_device *lu2md_dev(const struct lu_device *d)
566 LASSERT(IS_ERR(d) || lu_device_is_md(d));
567 return container_of0(d, struct md_device, md_lu_dev);
570 static inline struct lu_device *md2lu_dev(struct md_device *d)
572 return &d->md_lu_dev;
575 static inline struct md_object *lu2md(const struct lu_object *o)
577 LASSERT(o == NULL || IS_ERR(o) || lu_device_is_md(o->lo_dev));
578 return container_of0(o, struct md_object, mo_lu);
581 static inline struct md_object *md_object_next(const struct md_object *obj)
583 return (obj ? lu2md(lu_object_next(&obj->mo_lu)) : NULL);
586 static inline struct md_device *md_obj2dev(const struct md_object *o)
588 LASSERT(o == NULL || IS_ERR(o) || lu_device_is_md(o->mo_lu.lo_dev));
589 return container_of0(o->mo_lu.lo_dev, struct md_device, md_lu_dev);
592 static inline struct md_site *lu_site2md(const struct lu_site *s)
594 return container_of0(s, struct md_site, ms_lu);
597 static inline int md_device_init(struct md_device *md, struct lu_device_type *t)
599 return lu_device_init(&md->md_lu_dev, t);
602 static inline void md_device_fini(struct md_device *md)
604 lu_device_fini(&md->md_lu_dev);
607 static inline struct md_object *md_object_find_slice(const struct lu_env *env,
608 struct md_device *md,
609 const struct lu_fid *f)
611 return lu2md(lu_object_find_slice(env, md2lu_dev(md), f, NULL));
616 static inline int mo_permission(const struct lu_env *env,
622 LASSERT(c->mo_ops->moo_permission);
623 return c->mo_ops->moo_permission(env, p, c, at, mask);
626 static inline int mo_attr_get(const struct lu_env *env,
630 LASSERT(m->mo_ops->moo_attr_get);
631 return m->mo_ops->moo_attr_get(env, m, at);
634 static inline int mo_readlink(const struct lu_env *env,
638 LASSERT(m->mo_ops->moo_readlink);
639 return m->mo_ops->moo_readlink(env, m, buf);
642 static inline int mo_changelog(const struct lu_env *env,
643 enum changelog_rec_type type,
644 int flags, struct md_object *m)
646 LASSERT(m->mo_ops->moo_changelog);
647 return m->mo_ops->moo_changelog(env, type, flags, m);
650 static inline int mo_attr_set(const struct lu_env *env,
652 const struct md_attr *at)
654 LASSERT(m->mo_ops->moo_attr_set);
655 return m->mo_ops->moo_attr_set(env, m, at);
658 static inline int mo_xattr_get(const struct lu_env *env,
663 LASSERT(m->mo_ops->moo_xattr_get);
664 return m->mo_ops->moo_xattr_get(env, m, buf, name);
667 static inline int mo_xattr_del(const struct lu_env *env,
671 LASSERT(m->mo_ops->moo_xattr_del);
672 return m->mo_ops->moo_xattr_del(env, m, name);
675 static inline int mo_xattr_set(const struct lu_env *env,
677 const struct lu_buf *buf,
681 LASSERT(m->mo_ops->moo_xattr_set);
682 return m->mo_ops->moo_xattr_set(env, m, buf, name, flags);
685 static inline int mo_xattr_list(const struct lu_env *env,
689 LASSERT(m->mo_ops->moo_xattr_list);
690 return m->mo_ops->moo_xattr_list(env, m, buf);
693 static inline int mo_open(const struct lu_env *env,
697 LASSERT(m->mo_ops->moo_open);
698 return m->mo_ops->moo_open(env, m, flags);
701 static inline int mo_close(const struct lu_env *env,
706 LASSERT(m->mo_ops->moo_close);
707 return m->mo_ops->moo_close(env, m, ma, mode);
710 static inline int mo_readpage(const struct lu_env *env,
712 const struct lu_rdpg *rdpg)
714 LASSERT(m->mo_ops->moo_readpage);
715 return m->mo_ops->moo_readpage(env, m, rdpg);
718 static inline int mo_object_create(const struct lu_env *env,
720 const struct md_op_spec *spc,
723 LASSERT(m->mo_ops->moo_object_create);
724 return m->mo_ops->moo_object_create(env, m, spc, at);
727 static inline int mo_ref_add(const struct lu_env *env,
729 const struct md_attr *ma)
731 LASSERT(m->mo_ops->moo_ref_add);
732 return m->mo_ops->moo_ref_add(env, m, ma);
735 static inline int mo_ref_del(const struct lu_env *env,
739 LASSERT(m->mo_ops->moo_ref_del);
740 return m->mo_ops->moo_ref_del(env, m, ma);
743 static inline int mo_capa_get(const struct lu_env *env,
745 struct lustre_capa *c,
748 LASSERT(m->mo_ops->moo_capa_get);
749 return m->mo_ops->moo_capa_get(env, m, c, renewal);
752 static inline int mo_path(const struct lu_env *env, struct md_object *m,
753 char *path, int pathlen, __u64 *recno, int *linkno)
755 if (m->mo_ops->moo_path == NULL)
757 return m->mo_ops->moo_path(env, m, path, pathlen, recno, linkno);
760 static inline int mo_object_sync(const struct lu_env *env, struct md_object *m)
762 LASSERT(m->mo_ops->moo_object_sync);
763 return m->mo_ops->moo_object_sync(env, m);
766 static inline int mo_file_lock(const struct lu_env *env, struct md_object *m,
767 struct lov_mds_md *lmm,
768 struct ldlm_extent *extent,
769 struct lustre_handle *lockh)
771 LASSERT(m->mo_ops->moo_file_lock);
772 return m->mo_ops->moo_file_lock(env, m, lmm, extent, lockh);
775 static inline int mo_file_unlock(const struct lu_env *env, struct md_object *m,
776 struct lov_mds_md *lmm,
777 struct lustre_handle *lockh)
779 LASSERT(m->mo_ops->moo_file_unlock);
780 return m->mo_ops->moo_file_unlock(env, m, lmm, lockh);
783 static inline int mdo_lookup(const struct lu_env *env,
785 const struct lu_name *lname,
787 struct md_op_spec *spec)
789 LASSERT(p->mo_dir_ops->mdo_lookup);
790 return p->mo_dir_ops->mdo_lookup(env, p, lname, f, spec);
793 static inline mdl_mode_t mdo_lock_mode(const struct lu_env *env,
794 struct md_object *mo,
797 if (mo->mo_dir_ops->mdo_lock_mode == NULL)
799 return mo->mo_dir_ops->mdo_lock_mode(env, mo, lm);
802 static inline int mdo_create(const struct lu_env *env,
804 const struct lu_name *lchild_name,
806 struct md_op_spec *spc,
809 LASSERT(c->mo_dir_ops->mdo_create);
810 return c->mo_dir_ops->mdo_create(env, p, lchild_name, c, spc, at);
813 static inline int mdo_create_data(const struct lu_env *env,
816 const struct md_op_spec *spec,
819 LASSERT(c->mo_dir_ops->mdo_create_data);
820 return c->mo_dir_ops->mdo_create_data(env, p, c, spec, ma);
823 static inline int mdo_rename(const struct lu_env *env,
824 struct md_object *sp,
825 struct md_object *tp,
826 const struct lu_fid *lf,
827 const struct lu_name *lsname,
829 const struct lu_name *ltname,
832 LASSERT(tp->mo_dir_ops->mdo_rename);
833 return tp->mo_dir_ops->mdo_rename(env, sp, tp, lf, lsname, t, ltname,
837 static inline int mdo_is_subdir(const struct lu_env *env,
838 struct md_object *mo,
839 const struct lu_fid *fid,
842 LASSERT(mo->mo_dir_ops->mdo_is_subdir);
843 return mo->mo_dir_ops->mdo_is_subdir(env, mo, fid, sfid);
846 static inline int mdo_link(const struct lu_env *env,
849 const struct lu_name *lname,
852 LASSERT(s->mo_dir_ops->mdo_link);
853 return s->mo_dir_ops->mdo_link(env, p, s, lname, ma);
856 static inline int mdo_unlink(const struct lu_env *env,
859 const struct lu_name *lname,
862 LASSERT(c->mo_dir_ops->mdo_unlink);
863 return c->mo_dir_ops->mdo_unlink(env, p, c, lname, ma);
866 static inline int mdo_lum_lmm_cmp(const struct lu_env *env,
868 const struct md_op_spec *spec,
871 LASSERT(c->mo_dir_ops->mdo_lum_lmm_cmp);
872 return c->mo_dir_ops->mdo_lum_lmm_cmp(env, c, spec, ma);
875 static inline int mdo_name_insert(const struct lu_env *env,
877 const struct lu_name *lname,
878 const struct lu_fid *f,
879 const struct md_attr *ma)
881 LASSERT(p->mo_dir_ops->mdo_name_insert);
882 return p->mo_dir_ops->mdo_name_insert(env, p, lname, f, ma);
885 static inline int mdo_name_remove(const struct lu_env *env,
887 const struct lu_name *lname,
888 const struct md_attr *ma)
890 LASSERT(p->mo_dir_ops->mdo_name_remove);
891 return p->mo_dir_ops->mdo_name_remove(env, p, lname, ma);
894 static inline int mdo_rename_tgt(const struct lu_env *env,
897 const struct lu_fid *lf,
898 const struct lu_name *lname,
902 LASSERT(t->mo_dir_ops->mdo_rename_tgt);
903 return t->mo_dir_ops->mdo_rename_tgt(env, p, t, lf, lname, ma);
905 LASSERT(p->mo_dir_ops->mdo_rename_tgt);
906 return p->mo_dir_ops->mdo_rename_tgt(env, p, t, lf, lname, ma);
912 * Structure to hold object information. This is used to create object
913 * \pre llod_dir exist
915 struct lu_local_obj_desc {
916 const char *llod_dir;
917 const char *llod_name;
920 const struct dt_index_features *llod_feat;
921 cfs_list_t llod_linkage;
924 struct md_object *llo_store_resolve(const struct lu_env *env,
925 struct md_device *md,
926 struct dt_device *dt,
930 struct md_object *llo_store_open(const struct lu_env *env,
931 struct md_device *md,
932 struct dt_device *dt,
937 struct md_object *llo_store_create_index(const struct lu_env *env,
938 struct md_device *md,
939 struct dt_device *dt,
942 const struct lu_fid *fid,
943 const struct dt_index_features *feat);
945 struct md_object *llo_store_create(const struct lu_env *env,
946 struct md_device *md,
947 struct dt_device *dt,
950 const struct lu_fid *fid);
952 void llo_local_obj_register(struct lu_local_obj_desc *);
953 void llo_local_obj_unregister(struct lu_local_obj_desc *);
955 int llo_local_objects_setup(const struct lu_env *env,
956 struct md_device * md,
957 struct dt_device * dt);
960 #endif /* _LINUX_MD_OBJECT_H */