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.
33 * Copyright (c) 2011 Whamcloud, Inc.
36 * This file is part of Lustre, http://www.lustre.org/
37 * Lustre is a trademark of Sun Microsystems, Inc.
39 * lustre/include/md_object.h
41 * Extention of lu_object.h for metadata objects
44 #ifndef _LUSTRE_MD_OBJECT_H
45 #define _LUSTRE_MD_OBJECT_H
48 * Sub-class of lu_object with methods common for "meta-data" objects in MDT
51 * Meta-data objects implement namespace operations: you can link, unlink
52 * them, and treat them as directories.
54 * Examples: mdt, cmm, and mdt are implementations of md interface.
60 * super-class definitions.
62 #include <dt_object.h>
66 struct md_device_operations;
90 cfs_group_info_t *mu_ginfo;
91 struct md_identity *mu_identity;
98 /** there are at most 5 fids in one operation, see rename, NOTE the last one
99 * is a temporary one used for is_subdir() */
103 const struct lu_fid *mc_fid[MD_CAPAINFO_MAX];
104 struct lustre_capa *mc_capa[MD_CAPAINFO_MAX];
108 struct obd_export *mq_exp;
112 * Implemented in mdd/mdd_handler.c.
114 * XXX should be moved into separate .h/.c together with all md security
115 * related definitions.
117 struct md_ucred *md_ucred(const struct lu_env *env);
118 struct md_capainfo *md_capainfo(const struct lu_env *env);
119 struct md_quota *md_quota(const struct lu_env *env);
121 /** metadata attributes */
125 MA_COOKIE = (1 << 2),
128 MA_ACL_DEF = (1 << 5),
129 MA_LOV_DEF = (1 << 6),
130 MA_LAY_GEN = (1 << 7),
150 MDT_REG_LOCK = (1 << 0),
151 MDT_PDO_LOCK = (1 << 1)
156 __u32 mh_archive_number;
159 #define IOEPOCH_INVAL 0
172 struct lu_attr ma_attr;
173 struct lu_fid ma_pfid;
174 struct md_hsm ma_hsm;
175 struct lov_mds_md *ma_lmm;
176 struct lmv_stripe_md *ma_lmv;
178 struct llog_cookie *ma_cookie;
179 struct lustre_capa *ma_capa;
180 struct md_som_data *ma_som;
188 /** Additional parameters for create */
191 /** symlink target */
192 const char *sp_symname;
193 /** parent FID for cross-ref mkdir */
194 const struct lu_fid *sp_pfid;
195 /** eadata for regular files */
197 /** lov objs exist already */
198 const struct lu_fid *fid;
203 /** don't create lov objects or llog cookie - this replay */
206 /** Create flag from client: such as MDS_OPEN_CREAT, and others. */
209 /** Should mdd do lookup sanity check or not. */
212 /** Current lock mode for parent dir where create is performing. */
213 mdl_mode_t sp_cr_mode;
215 /** Check for split */
218 /** to create directory */
219 const struct dt_index_features *sp_feat;
223 * Operations implemented for each md object (both directory and leaf).
225 struct md_object_operations {
226 int (*moo_permission)(const struct lu_env *env,
227 struct md_object *pobj, struct md_object *cobj,
228 struct md_attr *attr, int mask);
230 int (*moo_attr_get)(const struct lu_env *env, struct md_object *obj,
231 struct md_attr *attr);
233 int (*moo_attr_set)(const struct lu_env *env, struct md_object *obj,
234 const struct md_attr *attr);
236 int (*moo_xattr_get)(const struct lu_env *env, struct md_object *obj,
237 struct lu_buf *buf, const char *name);
239 int (*moo_xattr_list)(const struct lu_env *env, struct md_object *obj,
242 int (*moo_xattr_set)(const struct lu_env *env, struct md_object *obj,
243 const struct lu_buf *buf, const char *name,
246 int (*moo_xattr_del)(const struct lu_env *env, struct md_object *obj,
249 /** \retval number of bytes actually read upon success */
250 int (*moo_readpage)(const struct lu_env *env, struct md_object *obj,
251 const struct lu_rdpg *rdpg);
253 int (*moo_readlink)(const struct lu_env *env, struct md_object *obj,
255 int (*moo_changelog)(const struct lu_env *env,
256 enum changelog_rec_type type, int flags,
257 struct md_object *obj);
258 /** part of cross-ref operation */
259 int (*moo_object_create)(const struct lu_env *env,
260 struct md_object *obj,
261 const struct md_op_spec *spec,
264 int (*moo_ref_add)(const struct lu_env *env,
265 struct md_object *obj,
266 const struct md_attr *ma);
268 int (*moo_ref_del)(const struct lu_env *env,
269 struct md_object *obj,
272 int (*moo_open)(const struct lu_env *env,
273 struct md_object *obj, int flag);
275 int (*moo_close)(const struct lu_env *env, struct md_object *obj,
276 struct md_attr *ma, int mode);
278 int (*moo_capa_get)(const struct lu_env *, struct md_object *,
279 struct lustre_capa *, int renewal);
281 int (*moo_object_sync)(const struct lu_env *, struct md_object *);
282 int (*moo_path)(const struct lu_env *env, struct md_object *obj,
283 char *path, int pathlen, __u64 *recno, int *linkno);
284 int (*moo_file_lock)(const struct lu_env *env, struct md_object *obj,
285 struct lov_mds_md *lmm, struct ldlm_extent *extent,
286 struct lustre_handle *lockh);
287 int (*moo_file_unlock)(const struct lu_env *env, struct md_object *obj,
288 struct lov_mds_md *lmm,
289 struct lustre_handle *lockh);
293 * Operations implemented for each directory object.
295 struct md_dir_operations {
296 int (*mdo_is_subdir) (const struct lu_env *env, struct md_object *obj,
297 const struct lu_fid *fid, struct lu_fid *sfid);
299 int (*mdo_lookup)(const struct lu_env *env, struct md_object *obj,
300 const struct lu_name *lname, struct lu_fid *fid,
301 struct md_op_spec *spec);
303 mdl_mode_t (*mdo_lock_mode)(const struct lu_env *env,
304 struct md_object *obj,
307 int (*mdo_create)(const struct lu_env *env, struct md_object *pobj,
308 const struct lu_name *lname, struct md_object *child,
309 struct md_op_spec *spec,
312 /** This method is used for creating data object for this meta object*/
313 int (*mdo_create_data)(const struct lu_env *env, struct md_object *p,
315 const struct md_op_spec *spec,
318 int (*mdo_rename)(const struct lu_env *env, struct md_object *spobj,
319 struct md_object *tpobj, const struct lu_fid *lf,
320 const struct lu_name *lsname, struct md_object *tobj,
321 const struct lu_name *ltname, struct md_attr *ma);
323 int (*mdo_link)(const struct lu_env *env, struct md_object *tgt_obj,
324 struct md_object *src_obj, const struct lu_name *lname,
327 int (*mdo_unlink)(const struct lu_env *env, struct md_object *pobj,
328 struct md_object *cobj, const struct lu_name *lname,
331 /** This method is used to compare a requested layout to an existing
332 * layout (struct lov_mds_md_v1/3 vs struct lov_mds_md_v1/3) */
333 int (*mdo_lum_lmm_cmp)(const struct lu_env *env,
334 struct md_object *cobj,
335 const struct md_op_spec *spec,
338 /** partial ops for cross-ref case */
339 int (*mdo_name_insert)(const struct lu_env *env,
340 struct md_object *obj,
341 const struct lu_name *lname,
342 const struct lu_fid *fid,
343 const struct md_attr *ma);
345 int (*mdo_name_remove)(const struct lu_env *env,
346 struct md_object *obj,
347 const struct lu_name *lname,
348 const struct md_attr *ma);
350 int (*mdo_rename_tgt)(const struct lu_env *env, struct md_object *pobj,
351 struct md_object *tobj, const struct lu_fid *fid,
352 const struct lu_name *lname, struct md_attr *ma);
355 struct md_device_operations {
356 /** meta-data device related handlers. */
357 int (*mdo_root_get)(const struct lu_env *env, struct md_device *m,
360 int (*mdo_maxsize_get)(const struct lu_env *env, struct md_device *m,
361 int *md_size, int *cookie_size);
363 int (*mdo_statfs)(const struct lu_env *env, struct md_device *m,
366 int (*mdo_init_capa_ctxt)(const struct lu_env *env, struct md_device *m,
367 int mode, unsigned long timeout, __u32 alg,
368 struct lustre_capa_key *keys);
370 int (*mdo_update_capa_key)(const struct lu_env *env,
372 struct lustre_capa_key *key);
374 int (*mdo_llog_ctxt_get)(const struct lu_env *env,
375 struct md_device *m, int idx, void **h);
377 int (*mdo_iocontrol)(const struct lu_env *env, struct md_device *m,
378 unsigned int cmd, int len, void *data);
380 #ifdef HAVE_QUOTA_SUPPORT
381 struct md_quota_operations {
382 int (*mqo_notify)(const struct lu_env *env,
383 struct md_device *m);
385 int (*mqo_setup)(const struct lu_env *env,
389 int (*mqo_cleanup)(const struct lu_env *env,
390 struct md_device *m);
392 int (*mqo_recovery)(const struct lu_env *env,
393 struct md_device *m);
395 int (*mqo_check)(const struct lu_env *env,
399 int (*mqo_on)(const struct lu_env *env,
403 int (*mqo_off)(const struct lu_env *env,
407 int (*mqo_setinfo)(const struct lu_env *env,
411 struct obd_dqinfo *dqinfo);
413 int (*mqo_getinfo)(const struct lu_env *env,
414 const struct md_device *m,
417 struct obd_dqinfo *dqinfo);
419 int (*mqo_setquota)(const struct lu_env *env,
423 struct obd_dqblk *dqblk);
425 int (*mqo_getquota)(const struct lu_env *env,
426 const struct md_device *m,
429 struct obd_dqblk *dqblk);
431 int (*mqo_getoinfo)(const struct lu_env *env,
432 const struct md_device *m,
435 struct obd_dqinfo *dqinfo);
437 int (*mqo_getoquota)(const struct lu_env *env,
438 const struct md_device *m,
441 struct obd_dqblk *dqblk);
443 int (*mqo_invalidate)(const struct lu_env *env,
447 int (*mqo_finvalidate)(const struct lu_env *env,
454 enum md_upcall_event {
455 /** Sync the md layer*/
456 MD_LOV_SYNC = (1 << 0),
457 /** Just for split, no need trans, for replay */
458 MD_NO_TRANS = (1 << 1),
459 MD_LOV_CONFIG = (1 << 2),
460 /** Trigger quota recovery */
461 MD_LOV_QUOTA = (1 << 3)
465 /** this lock protects upcall using against its removal
466 * read lock is for usage the upcall, write - for init/fini */
467 cfs_rw_semaphore_t mu_upcall_sem;
468 /** device to call, upper layer normally */
469 struct md_device *mu_upcall_dev;
470 /** upcall function */
471 int (*mu_upcall)(const struct lu_env *env, struct md_device *md,
472 enum md_upcall_event ev, void *data);
476 struct lu_device md_lu_dev;
477 const struct md_device_operations *md_ops;
478 struct md_upcall md_upcall;
481 static inline void md_upcall_init(struct md_device *m, void *upcl)
483 cfs_init_rwsem(&m->md_upcall.mu_upcall_sem);
484 m->md_upcall.mu_upcall_dev = NULL;
485 m->md_upcall.mu_upcall = upcl;
488 static inline void md_upcall_dev_set(struct md_device *m, struct md_device *up)
490 cfs_down_write(&m->md_upcall.mu_upcall_sem);
491 m->md_upcall.mu_upcall_dev = up;
492 cfs_up_write(&m->md_upcall.mu_upcall_sem);
495 static inline void md_upcall_fini(struct md_device *m)
497 cfs_down_write(&m->md_upcall.mu_upcall_sem);
498 m->md_upcall.mu_upcall_dev = NULL;
499 m->md_upcall.mu_upcall = NULL;
500 cfs_up_write(&m->md_upcall.mu_upcall_sem);
503 static inline int md_do_upcall(const struct lu_env *env, struct md_device *m,
504 enum md_upcall_event ev, void *data)
507 cfs_down_read(&m->md_upcall.mu_upcall_sem);
508 if (m->md_upcall.mu_upcall_dev != NULL &&
509 m->md_upcall.mu_upcall_dev->md_upcall.mu_upcall != NULL) {
510 rc = m->md_upcall.mu_upcall_dev->md_upcall.mu_upcall(env,
511 m->md_upcall.mu_upcall_dev,
514 cfs_up_read(&m->md_upcall.mu_upcall_sem);
519 struct lu_object mo_lu;
520 const struct md_object_operations *mo_ops;
521 const struct md_dir_operations *mo_dir_ops;
528 struct lu_site ms_lu;
530 * mds number of this site.
534 * Fid location database
536 struct lu_server_fld *ms_server_fld;
537 struct lu_client_fld *ms_client_fld;
542 struct lu_server_seq *ms_server_seq;
545 * Controller Seq Manager
547 struct lu_server_seq *ms_control_seq;
548 struct obd_export *ms_control_exp;
553 struct lu_client_seq *ms_client_seq;
556 static inline int lu_device_is_md(const struct lu_device *d)
558 return ergo(d != NULL, d->ld_type->ldt_tags & LU_DEVICE_MD);
561 static inline struct md_device *lu2md_dev(const struct lu_device *d)
563 LASSERT(IS_ERR(d) || lu_device_is_md(d));
564 return container_of0(d, struct md_device, md_lu_dev);
567 static inline struct lu_device *md2lu_dev(struct md_device *d)
569 return &d->md_lu_dev;
572 static inline struct md_object *lu2md(const struct lu_object *o)
574 LASSERT(o == NULL || IS_ERR(o) || lu_device_is_md(o->lo_dev));
575 return container_of0(o, struct md_object, mo_lu);
578 static inline struct md_object *md_object_next(const struct md_object *obj)
580 return (obj ? lu2md(lu_object_next(&obj->mo_lu)) : NULL);
583 static inline struct md_device *md_obj2dev(const struct md_object *o)
585 LASSERT(o == NULL || IS_ERR(o) || lu_device_is_md(o->mo_lu.lo_dev));
586 return container_of0(o->mo_lu.lo_dev, struct md_device, md_lu_dev);
589 static inline struct md_site *lu_site2md(const struct lu_site *s)
591 return container_of0(s, struct md_site, ms_lu);
594 static inline int md_device_init(struct md_device *md, struct lu_device_type *t)
596 return lu_device_init(&md->md_lu_dev, t);
599 static inline void md_device_fini(struct md_device *md)
601 lu_device_fini(&md->md_lu_dev);
604 static inline struct md_object *md_object_find_slice(const struct lu_env *env,
605 struct md_device *md,
606 const struct lu_fid *f)
608 return lu2md(lu_object_find_slice(env, md2lu_dev(md), f, NULL));
613 static inline int mo_permission(const struct lu_env *env,
619 LASSERT(c->mo_ops->moo_permission);
620 return c->mo_ops->moo_permission(env, p, c, at, mask);
623 static inline int mo_attr_get(const struct lu_env *env,
627 LASSERT(m->mo_ops->moo_attr_get);
628 return m->mo_ops->moo_attr_get(env, m, at);
631 static inline int mo_readlink(const struct lu_env *env,
635 LASSERT(m->mo_ops->moo_readlink);
636 return m->mo_ops->moo_readlink(env, m, buf);
639 static inline int mo_changelog(const struct lu_env *env,
640 enum changelog_rec_type type,
641 int flags, struct md_object *m)
643 LASSERT(m->mo_ops->moo_changelog);
644 return m->mo_ops->moo_changelog(env, type, flags, m);
647 static inline int mo_attr_set(const struct lu_env *env,
649 const struct md_attr *at)
651 LASSERT(m->mo_ops->moo_attr_set);
652 return m->mo_ops->moo_attr_set(env, m, at);
655 static inline int mo_xattr_get(const struct lu_env *env,
660 LASSERT(m->mo_ops->moo_xattr_get);
661 return m->mo_ops->moo_xattr_get(env, m, buf, name);
664 static inline int mo_xattr_del(const struct lu_env *env,
668 LASSERT(m->mo_ops->moo_xattr_del);
669 return m->mo_ops->moo_xattr_del(env, m, name);
672 static inline int mo_xattr_set(const struct lu_env *env,
674 const struct lu_buf *buf,
678 LASSERT(m->mo_ops->moo_xattr_set);
679 return m->mo_ops->moo_xattr_set(env, m, buf, name, flags);
682 static inline int mo_xattr_list(const struct lu_env *env,
686 LASSERT(m->mo_ops->moo_xattr_list);
687 return m->mo_ops->moo_xattr_list(env, m, buf);
690 static inline int mo_open(const struct lu_env *env,
694 LASSERT(m->mo_ops->moo_open);
695 return m->mo_ops->moo_open(env, m, flags);
698 static inline int mo_close(const struct lu_env *env,
703 LASSERT(m->mo_ops->moo_close);
704 return m->mo_ops->moo_close(env, m, ma, mode);
707 static inline int mo_readpage(const struct lu_env *env,
709 const struct lu_rdpg *rdpg)
711 LASSERT(m->mo_ops->moo_readpage);
712 return m->mo_ops->moo_readpage(env, m, rdpg);
715 static inline int mo_object_create(const struct lu_env *env,
717 const struct md_op_spec *spc,
720 LASSERT(m->mo_ops->moo_object_create);
721 return m->mo_ops->moo_object_create(env, m, spc, at);
724 static inline int mo_ref_add(const struct lu_env *env,
726 const struct md_attr *ma)
728 LASSERT(m->mo_ops->moo_ref_add);
729 return m->mo_ops->moo_ref_add(env, m, ma);
732 static inline int mo_ref_del(const struct lu_env *env,
736 LASSERT(m->mo_ops->moo_ref_del);
737 return m->mo_ops->moo_ref_del(env, m, ma);
740 static inline int mo_capa_get(const struct lu_env *env,
742 struct lustre_capa *c,
745 LASSERT(m->mo_ops->moo_capa_get);
746 return m->mo_ops->moo_capa_get(env, m, c, renewal);
749 static inline int mo_path(const struct lu_env *env, struct md_object *m,
750 char *path, int pathlen, __u64 *recno, int *linkno)
752 if (m->mo_ops->moo_path == NULL)
754 return m->mo_ops->moo_path(env, m, path, pathlen, recno, linkno);
757 static inline int mo_object_sync(const struct lu_env *env, struct md_object *m)
759 LASSERT(m->mo_ops->moo_object_sync);
760 return m->mo_ops->moo_object_sync(env, m);
763 static inline int mo_file_lock(const struct lu_env *env, struct md_object *m,
764 struct lov_mds_md *lmm,
765 struct ldlm_extent *extent,
766 struct lustre_handle *lockh)
768 LASSERT(m->mo_ops->moo_file_lock);
769 return m->mo_ops->moo_file_lock(env, m, lmm, extent, lockh);
772 static inline int mo_file_unlock(const struct lu_env *env, struct md_object *m,
773 struct lov_mds_md *lmm,
774 struct lustre_handle *lockh)
776 LASSERT(m->mo_ops->moo_file_unlock);
777 return m->mo_ops->moo_file_unlock(env, m, lmm, lockh);
780 static inline int mdo_lookup(const struct lu_env *env,
782 const struct lu_name *lname,
784 struct md_op_spec *spec)
786 LASSERT(p->mo_dir_ops->mdo_lookup);
787 return p->mo_dir_ops->mdo_lookup(env, p, lname, f, spec);
790 static inline mdl_mode_t mdo_lock_mode(const struct lu_env *env,
791 struct md_object *mo,
794 if (mo->mo_dir_ops->mdo_lock_mode == NULL)
796 return mo->mo_dir_ops->mdo_lock_mode(env, mo, lm);
799 static inline int mdo_create(const struct lu_env *env,
801 const struct lu_name *lchild_name,
803 struct md_op_spec *spc,
806 LASSERT(c->mo_dir_ops->mdo_create);
807 return c->mo_dir_ops->mdo_create(env, p, lchild_name, c, spc, at);
810 static inline int mdo_create_data(const struct lu_env *env,
813 const struct md_op_spec *spec,
816 LASSERT(c->mo_dir_ops->mdo_create_data);
817 return c->mo_dir_ops->mdo_create_data(env, p, c, spec, ma);
820 static inline int mdo_rename(const struct lu_env *env,
821 struct md_object *sp,
822 struct md_object *tp,
823 const struct lu_fid *lf,
824 const struct lu_name *lsname,
826 const struct lu_name *ltname,
829 LASSERT(tp->mo_dir_ops->mdo_rename);
830 return tp->mo_dir_ops->mdo_rename(env, sp, tp, lf, lsname, t, ltname,
834 static inline int mdo_is_subdir(const struct lu_env *env,
835 struct md_object *mo,
836 const struct lu_fid *fid,
839 LASSERT(mo->mo_dir_ops->mdo_is_subdir);
840 return mo->mo_dir_ops->mdo_is_subdir(env, mo, fid, sfid);
843 static inline int mdo_link(const struct lu_env *env,
846 const struct lu_name *lname,
849 LASSERT(s->mo_dir_ops->mdo_link);
850 return s->mo_dir_ops->mdo_link(env, p, s, lname, ma);
853 static inline int mdo_unlink(const struct lu_env *env,
856 const struct lu_name *lname,
859 LASSERT(c->mo_dir_ops->mdo_unlink);
860 return c->mo_dir_ops->mdo_unlink(env, p, c, lname, ma);
863 static inline int mdo_lum_lmm_cmp(const struct lu_env *env,
865 const struct md_op_spec *spec,
868 LASSERT(c->mo_dir_ops->mdo_lum_lmm_cmp);
869 return c->mo_dir_ops->mdo_lum_lmm_cmp(env, c, spec, ma);
872 static inline int mdo_name_insert(const struct lu_env *env,
874 const struct lu_name *lname,
875 const struct lu_fid *f,
876 const struct md_attr *ma)
878 LASSERT(p->mo_dir_ops->mdo_name_insert);
879 return p->mo_dir_ops->mdo_name_insert(env, p, lname, f, ma);
882 static inline int mdo_name_remove(const struct lu_env *env,
884 const struct lu_name *lname,
885 const struct md_attr *ma)
887 LASSERT(p->mo_dir_ops->mdo_name_remove);
888 return p->mo_dir_ops->mdo_name_remove(env, p, lname, ma);
891 static inline int mdo_rename_tgt(const struct lu_env *env,
894 const struct lu_fid *lf,
895 const struct lu_name *lname,
899 LASSERT(t->mo_dir_ops->mdo_rename_tgt);
900 return t->mo_dir_ops->mdo_rename_tgt(env, p, t, lf, lname, ma);
902 LASSERT(p->mo_dir_ops->mdo_rename_tgt);
903 return p->mo_dir_ops->mdo_rename_tgt(env, p, t, lf, lname, ma);
909 * Structure to hold object information. This is used to create object
910 * \pre llod_dir exist
912 struct lu_local_obj_desc {
913 const char *llod_dir;
914 const char *llod_name;
917 const struct dt_index_features *llod_feat;
918 cfs_list_t llod_linkage;
921 struct md_object *llo_store_resolve(const struct lu_env *env,
922 struct md_device *md,
923 struct dt_device *dt,
927 struct md_object *llo_store_open(const struct lu_env *env,
928 struct md_device *md,
929 struct dt_device *dt,
934 struct md_object *llo_store_create_index(const struct lu_env *env,
935 struct md_device *md,
936 struct dt_device *dt,
939 const struct lu_fid *fid,
940 const struct dt_index_features *feat);
942 struct md_object *llo_store_create(const struct lu_env *env,
943 struct md_device *md,
944 struct dt_device *dt,
947 const struct lu_fid *fid);
949 void llo_local_obj_register(struct lu_local_obj_desc *);
950 void llo_local_obj_unregister(struct lu_local_obj_desc *);
952 int llo_local_objects_setup(const struct lu_env *env,
953 struct md_device * md,
954 struct dt_device * dt);
957 #endif /* _LINUX_MD_OBJECT_H */