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 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/include/md_object.h
38 * Extention of lu_object.h for metadata objects
41 #ifndef _LUSTRE_MD_OBJECT_H
42 #define _LUSTRE_MD_OBJECT_H
45 * Sub-class of lu_object with methods common for "meta-data" objects in MDT
48 * Meta-data objects implement namespace operations: you can link, unlink
49 * them, and treat them as directories.
51 * Examples: mdt, cmm, and mdt are implementations of md interface.
57 * super-class definitions.
59 #include <dt_object.h>
63 struct md_device_operations;
87 cfs_group_info_t *mu_ginfo;
88 struct md_identity *mu_identity;
95 /** there are at most 5 fids in one operation, see rename, NOTE the last one
96 * is a temporary one used for is_subdir() */
100 const struct lu_fid *mc_fid[MD_CAPAINFO_MAX];
101 struct lustre_capa *mc_capa[MD_CAPAINFO_MAX];
105 struct obd_export *mq_exp;
109 * Implemented in mdd/mdd_handler.c.
111 * XXX should be moved into separate .h/.c together with all md security
112 * related definitions.
114 struct md_ucred *md_ucred(const struct lu_env *env);
115 struct md_capainfo *md_capainfo(const struct lu_env *env);
116 struct md_quota *md_quota(const struct lu_env *env);
118 /** metadata attributes */
122 MA_COOKIE = (1 << 2),
125 MA_ACL_DEF = (1 << 5),
126 MA_LOV_DEF = (1 << 6),
127 /* (Layout lock will used #7 here) */
147 MDT_REG_LOCK = (1 << 0),
148 MDT_PDO_LOCK = (1 << 1)
153 __u32 mh_archive_number;
156 #define IOEPOCH_INVAL 0
169 struct lu_attr ma_attr;
170 struct lov_mds_md *ma_lmm;
172 struct lmv_stripe_md *ma_lmv;
176 struct llog_cookie *ma_cookie;
178 struct lustre_capa *ma_capa;
179 struct md_hsm ma_hsm;
180 struct md_som_data *ma_som;
181 struct lu_fid ma_pfid;
184 /** Additional parameters for create */
187 /** symlink target */
188 const char *sp_symname;
189 /** parent FID for cross-ref mkdir */
190 const struct lu_fid *sp_pfid;
191 /** eadata for regular files */
193 /** lov objs exist already */
194 const struct lu_fid *fid;
199 /** don't create lov objects or llog cookie - this replay */
202 /** Create flag from client: such as MDS_OPEN_CREAT, and others. */
205 /** Should mdd do lookup sanity check or not. */
208 /** Current lock mode for parent dir where create is performing. */
209 mdl_mode_t sp_cr_mode;
211 /** Check for split */
214 /** to create directory */
215 const struct dt_index_features *sp_feat;
219 * Operations implemented for each md object (both directory and leaf).
221 struct md_object_operations {
222 int (*moo_permission)(const struct lu_env *env,
223 struct md_object *pobj, struct md_object *cobj,
224 struct md_attr *attr, int mask);
226 int (*moo_attr_get)(const struct lu_env *env, struct md_object *obj,
227 struct md_attr *attr);
229 int (*moo_attr_set)(const struct lu_env *env, struct md_object *obj,
230 const struct md_attr *attr);
232 int (*moo_xattr_get)(const struct lu_env *env, struct md_object *obj,
233 struct lu_buf *buf, const char *name);
235 int (*moo_xattr_list)(const struct lu_env *env, struct md_object *obj,
238 int (*moo_xattr_set)(const struct lu_env *env, struct md_object *obj,
239 const struct lu_buf *buf, const char *name,
242 int (*moo_xattr_del)(const struct lu_env *env, struct md_object *obj,
245 int (*moo_readpage)(const struct lu_env *env, struct md_object *obj,
246 const struct lu_rdpg *rdpg);
248 int (*moo_readlink)(const struct lu_env *env, struct md_object *obj,
250 int (*moo_changelog)(const struct lu_env *env,
251 enum changelog_rec_type type, int flags,
252 struct md_object *obj);
253 /** part of cross-ref operation */
254 int (*moo_object_create)(const struct lu_env *env,
255 struct md_object *obj,
256 const struct md_op_spec *spec,
259 int (*moo_ref_add)(const struct lu_env *env,
260 struct md_object *obj,
261 const struct md_attr *ma);
263 int (*moo_ref_del)(const struct lu_env *env,
264 struct md_object *obj,
267 int (*moo_open)(const struct lu_env *env,
268 struct md_object *obj, int flag);
270 int (*moo_close)(const struct lu_env *env, struct md_object *obj,
273 int (*moo_capa_get)(const struct lu_env *, struct md_object *,
274 struct lustre_capa *, int renewal);
276 int (*moo_object_sync)(const struct lu_env *, struct md_object *);
277 dt_obj_version_t (*moo_version_get)(const struct lu_env *,
279 void (*moo_version_set)(const struct lu_env *, struct md_object *,
281 int (*moo_path)(const struct lu_env *env, struct md_object *obj,
282 char *path, int pathlen, __u64 *recno, int *linkno);
283 int (*moo_file_lock)(const struct lu_env *env, struct md_object *obj,
284 struct lov_mds_md *lmm, struct ldlm_extent *extent,
285 struct lustre_handle *lockh);
286 int (*moo_file_unlock)(const struct lu_env *env, struct md_object *obj,
287 struct lov_mds_md *lmm,
288 struct lustre_handle *lockh);
292 * Operations implemented for each directory object.
294 struct md_dir_operations {
295 int (*mdo_is_subdir) (const struct lu_env *env, struct md_object *obj,
296 const struct lu_fid *fid, struct lu_fid *sfid);
298 int (*mdo_lookup)(const struct lu_env *env, struct md_object *obj,
299 const struct lu_name *lname, struct lu_fid *fid,
300 struct md_op_spec *spec);
302 mdl_mode_t (*mdo_lock_mode)(const struct lu_env *env,
303 struct md_object *obj,
306 int (*mdo_create)(const struct lu_env *env, struct md_object *pobj,
307 const struct lu_name *lname, struct md_object *child,
308 struct md_op_spec *spec,
311 /** This method is used for creating data object for this meta object*/
312 int (*mdo_create_data)(const struct lu_env *env, struct md_object *p,
314 const struct md_op_spec *spec,
317 int (*mdo_rename)(const struct lu_env *env, struct md_object *spobj,
318 struct md_object *tpobj, const struct lu_fid *lf,
319 const struct lu_name *lsname, struct md_object *tobj,
320 const struct lu_name *ltname, struct md_attr *ma);
322 int (*mdo_link)(const struct lu_env *env, struct md_object *tgt_obj,
323 struct md_object *src_obj, const struct lu_name *lname,
326 int (*mdo_unlink)(const struct lu_env *env, struct md_object *pobj,
327 struct md_object *cobj, const struct lu_name *lname,
330 /** partial ops for cross-ref case */
331 int (*mdo_name_insert)(const struct lu_env *env,
332 struct md_object *obj,
333 const struct lu_name *lname,
334 const struct lu_fid *fid,
335 const struct md_attr *ma);
337 int (*mdo_name_remove)(const struct lu_env *env,
338 struct md_object *obj,
339 const struct lu_name *lname,
340 const struct md_attr *ma);
342 int (*mdo_rename_tgt)(const struct lu_env *env, struct md_object *pobj,
343 struct md_object *tobj, const struct lu_fid *fid,
344 const struct lu_name *lname, struct md_attr *ma);
347 struct md_device_operations {
348 /** meta-data device related handlers. */
349 int (*mdo_root_get)(const struct lu_env *env, struct md_device *m,
352 int (*mdo_maxsize_get)(const struct lu_env *env, struct md_device *m,
353 int *md_size, int *cookie_size);
355 int (*mdo_statfs)(const struct lu_env *env, struct md_device *m,
358 int (*mdo_init_capa_ctxt)(const struct lu_env *env, struct md_device *m,
359 int mode, unsigned long timeout, __u32 alg,
360 struct lustre_capa_key *keys);
362 int (*mdo_update_capa_key)(const struct lu_env *env,
364 struct lustre_capa_key *key);
366 int (*mdo_llog_ctxt_get)(const struct lu_env *env,
367 struct md_device *m, int idx, void **h);
369 int (*mdo_iocontrol)(const struct lu_env *env, struct md_device *m,
370 unsigned int cmd, int len, void *data);
372 #ifdef HAVE_QUOTA_SUPPORT
373 struct md_quota_operations {
374 int (*mqo_notify)(const struct lu_env *env,
375 struct md_device *m);
377 int (*mqo_setup)(const struct lu_env *env,
381 int (*mqo_cleanup)(const struct lu_env *env,
382 struct md_device *m);
384 int (*mqo_recovery)(const struct lu_env *env,
385 struct md_device *m);
387 int (*mqo_check)(const struct lu_env *env,
391 int (*mqo_on)(const struct lu_env *env,
395 int (*mqo_off)(const struct lu_env *env,
399 int (*mqo_setinfo)(const struct lu_env *env,
403 struct obd_dqinfo *dqinfo);
405 int (*mqo_getinfo)(const struct lu_env *env,
406 const struct md_device *m,
409 struct obd_dqinfo *dqinfo);
411 int (*mqo_setquota)(const struct lu_env *env,
415 struct obd_dqblk *dqblk);
417 int (*mqo_getquota)(const struct lu_env *env,
418 const struct md_device *m,
421 struct obd_dqblk *dqblk);
423 int (*mqo_getoinfo)(const struct lu_env *env,
424 const struct md_device *m,
427 struct obd_dqinfo *dqinfo);
429 int (*mqo_getoquota)(const struct lu_env *env,
430 const struct md_device *m,
433 struct obd_dqblk *dqblk);
435 int (*mqo_invalidate)(const struct lu_env *env,
439 int (*mqo_finvalidate)(const struct lu_env *env,
446 enum md_upcall_event {
447 /** Sync the md layer*/
448 MD_LOV_SYNC = (1 << 0),
449 /** Just for split, no need trans, for replay */
450 MD_NO_TRANS = (1 << 1),
451 MD_LOV_CONFIG = (1 << 2),
452 /** Trigger quota recovery */
453 MD_LOV_QUOTA = (1 << 3)
457 /** this lock protects upcall using against its removal
458 * read lock is for usage the upcall, write - for init/fini */
459 cfs_rw_semaphore_t mu_upcall_sem;
460 /** device to call, upper layer normally */
461 struct md_device *mu_upcall_dev;
462 /** upcall function */
463 int (*mu_upcall)(const struct lu_env *env, struct md_device *md,
464 enum md_upcall_event ev, void *data);
468 struct lu_device md_lu_dev;
469 const struct md_device_operations *md_ops;
470 struct md_upcall md_upcall;
473 static inline void md_upcall_init(struct md_device *m, void *upcl)
475 cfs_init_rwsem(&m->md_upcall.mu_upcall_sem);
476 m->md_upcall.mu_upcall_dev = NULL;
477 m->md_upcall.mu_upcall = upcl;
480 static inline void md_upcall_dev_set(struct md_device *m, struct md_device *up)
482 cfs_down_write(&m->md_upcall.mu_upcall_sem);
483 m->md_upcall.mu_upcall_dev = up;
484 cfs_up_write(&m->md_upcall.mu_upcall_sem);
487 static inline void md_upcall_fini(struct md_device *m)
489 cfs_down_write(&m->md_upcall.mu_upcall_sem);
490 m->md_upcall.mu_upcall_dev = NULL;
491 m->md_upcall.mu_upcall = NULL;
492 cfs_up_write(&m->md_upcall.mu_upcall_sem);
495 static inline int md_do_upcall(const struct lu_env *env, struct md_device *m,
496 enum md_upcall_event ev, void *data)
499 cfs_down_read(&m->md_upcall.mu_upcall_sem);
500 if (m->md_upcall.mu_upcall_dev != NULL &&
501 m->md_upcall.mu_upcall_dev->md_upcall.mu_upcall != NULL) {
502 rc = m->md_upcall.mu_upcall_dev->md_upcall.mu_upcall(env,
503 m->md_upcall.mu_upcall_dev,
506 cfs_up_read(&m->md_upcall.mu_upcall_sem);
511 struct lu_object mo_lu;
512 const struct md_object_operations *mo_ops;
513 const struct md_dir_operations *mo_dir_ops;
520 struct lu_site ms_lu;
522 * mds number of this site.
526 * Fid location database
528 struct lu_server_fld *ms_server_fld;
529 struct lu_client_fld *ms_client_fld;
534 struct lu_server_seq *ms_server_seq;
537 * Controller Seq Manager
539 struct lu_server_seq *ms_control_seq;
540 struct obd_export *ms_control_exp;
545 struct lu_client_seq *ms_client_seq;
548 static inline int lu_device_is_md(const struct lu_device *d)
550 return ergo(d != NULL, d->ld_type->ldt_tags & LU_DEVICE_MD);
553 static inline struct md_device *lu2md_dev(const struct lu_device *d)
555 LASSERT(IS_ERR(d) || lu_device_is_md(d));
556 return container_of0(d, struct md_device, md_lu_dev);
559 static inline struct lu_device *md2lu_dev(struct md_device *d)
561 return &d->md_lu_dev;
564 static inline struct md_object *lu2md(const struct lu_object *o)
566 LASSERT(o == NULL || IS_ERR(o) || lu_device_is_md(o->lo_dev));
567 return container_of0(o, struct md_object, mo_lu);
570 static inline struct md_object *md_object_next(const struct md_object *obj)
572 return (obj ? lu2md(lu_object_next(&obj->mo_lu)) : NULL);
575 static inline struct md_device *md_obj2dev(const struct md_object *o)
577 LASSERT(o == NULL || IS_ERR(o) || lu_device_is_md(o->mo_lu.lo_dev));
578 return container_of0(o->mo_lu.lo_dev, struct md_device, md_lu_dev);
581 static inline struct md_site *lu_site2md(const struct lu_site *s)
583 return container_of0(s, struct md_site, ms_lu);
586 static inline int md_device_init(struct md_device *md, struct lu_device_type *t)
588 return lu_device_init(&md->md_lu_dev, t);
591 static inline void md_device_fini(struct md_device *md)
593 lu_device_fini(&md->md_lu_dev);
596 static inline struct md_object *md_object_find_slice(const struct lu_env *env,
597 struct md_device *md,
598 const struct lu_fid *f)
600 return lu2md(lu_object_find_slice(env, md2lu_dev(md), f, NULL));
605 static inline int mo_permission(const struct lu_env *env,
611 LASSERT(c->mo_ops->moo_permission);
612 return c->mo_ops->moo_permission(env, p, c, at, mask);
615 static inline int mo_attr_get(const struct lu_env *env,
619 LASSERT(m->mo_ops->moo_attr_get);
620 return m->mo_ops->moo_attr_get(env, m, at);
623 static inline int mo_readlink(const struct lu_env *env,
627 LASSERT(m->mo_ops->moo_readlink);
628 return m->mo_ops->moo_readlink(env, m, buf);
631 static inline int mo_changelog(const struct lu_env *env,
632 enum changelog_rec_type type,
633 int flags, struct md_object *m)
635 LASSERT(m->mo_ops->moo_changelog);
636 return m->mo_ops->moo_changelog(env, type, flags, m);
639 static inline int mo_attr_set(const struct lu_env *env,
641 const struct md_attr *at)
643 LASSERT(m->mo_ops->moo_attr_set);
644 return m->mo_ops->moo_attr_set(env, m, at);
647 static inline int mo_xattr_get(const struct lu_env *env,
652 LASSERT(m->mo_ops->moo_xattr_get);
653 return m->mo_ops->moo_xattr_get(env, m, buf, name);
656 static inline int mo_xattr_del(const struct lu_env *env,
660 LASSERT(m->mo_ops->moo_xattr_del);
661 return m->mo_ops->moo_xattr_del(env, m, name);
664 static inline int mo_xattr_set(const struct lu_env *env,
666 const struct lu_buf *buf,
670 LASSERT(m->mo_ops->moo_xattr_set);
671 return m->mo_ops->moo_xattr_set(env, m, buf, name, flags);
674 static inline int mo_xattr_list(const struct lu_env *env,
678 LASSERT(m->mo_ops->moo_xattr_list);
679 return m->mo_ops->moo_xattr_list(env, m, buf);
682 static inline int mo_open(const struct lu_env *env,
686 LASSERT(m->mo_ops->moo_open);
687 return m->mo_ops->moo_open(env, m, flags);
690 static inline int mo_close(const struct lu_env *env,
694 LASSERT(m->mo_ops->moo_close);
695 return m->mo_ops->moo_close(env, m, ma);
698 static inline int mo_readpage(const struct lu_env *env,
700 const struct lu_rdpg *rdpg)
702 LASSERT(m->mo_ops->moo_readpage);
703 return m->mo_ops->moo_readpage(env, m, rdpg);
706 static inline int mo_object_create(const struct lu_env *env,
708 const struct md_op_spec *spc,
711 LASSERT(m->mo_ops->moo_object_create);
712 return m->mo_ops->moo_object_create(env, m, spc, at);
715 static inline int mo_ref_add(const struct lu_env *env,
717 const struct md_attr *ma)
719 LASSERT(m->mo_ops->moo_ref_add);
720 return m->mo_ops->moo_ref_add(env, m, ma);
723 static inline int mo_ref_del(const struct lu_env *env,
727 LASSERT(m->mo_ops->moo_ref_del);
728 return m->mo_ops->moo_ref_del(env, m, ma);
731 static inline int mo_capa_get(const struct lu_env *env,
733 struct lustre_capa *c,
736 LASSERT(m->mo_ops->moo_capa_get);
737 return m->mo_ops->moo_capa_get(env, m, c, renewal);
740 static inline int mo_path(const struct lu_env *env, struct md_object *m,
741 char *path, int pathlen, __u64 *recno, int *linkno)
743 if (m->mo_ops->moo_path == NULL)
745 return m->mo_ops->moo_path(env, m, path, pathlen, recno, linkno);
748 static inline int mo_object_sync(const struct lu_env *env, struct md_object *m)
750 LASSERT(m->mo_ops->moo_object_sync);
751 return m->mo_ops->moo_object_sync(env, m);
754 static inline dt_obj_version_t mo_version_get(const struct lu_env *env,
757 LASSERT(m->mo_ops->moo_version_get);
758 return m->mo_ops->moo_version_get(env, m);
761 static inline void mo_version_set(const struct lu_env *env,
762 struct md_object *m, dt_obj_version_t ver)
764 LASSERT(m->mo_ops->moo_version_set);
765 return m->mo_ops->moo_version_set(env, m, ver);
768 static inline int mo_file_lock(const struct lu_env *env, struct md_object *m,
769 struct lov_mds_md *lmm,
770 struct ldlm_extent *extent,
771 struct lustre_handle *lockh)
773 LASSERT(m->mo_ops->moo_file_lock);
774 return m->mo_ops->moo_file_lock(env, m, lmm, extent, lockh);
777 static inline int mo_file_unlock(const struct lu_env *env, struct md_object *m,
778 struct lov_mds_md *lmm,
779 struct lustre_handle *lockh)
781 LASSERT(m->mo_ops->moo_file_unlock);
782 return m->mo_ops->moo_file_unlock(env, m, lmm, lockh);
785 static inline int mdo_lookup(const struct lu_env *env,
787 const struct lu_name *lname,
789 struct md_op_spec *spec)
791 LASSERT(p->mo_dir_ops->mdo_lookup);
792 return p->mo_dir_ops->mdo_lookup(env, p, lname, f, spec);
795 static inline mdl_mode_t mdo_lock_mode(const struct lu_env *env,
796 struct md_object *mo,
799 if (mo->mo_dir_ops->mdo_lock_mode == NULL)
801 return mo->mo_dir_ops->mdo_lock_mode(env, mo, lm);
804 static inline int mdo_create(const struct lu_env *env,
806 const struct lu_name *lchild_name,
808 struct md_op_spec *spc,
811 LASSERT(c->mo_dir_ops->mdo_create);
812 return c->mo_dir_ops->mdo_create(env, p, lchild_name, c, spc, at);
815 static inline int mdo_create_data(const struct lu_env *env,
818 const struct md_op_spec *spec,
821 LASSERT(c->mo_dir_ops->mdo_create_data);
822 return c->mo_dir_ops->mdo_create_data(env, p, c, spec, ma);
825 static inline int mdo_rename(const struct lu_env *env,
826 struct md_object *sp,
827 struct md_object *tp,
828 const struct lu_fid *lf,
829 const struct lu_name *lsname,
831 const struct lu_name *ltname,
834 LASSERT(tp->mo_dir_ops->mdo_rename);
835 return tp->mo_dir_ops->mdo_rename(env, sp, tp, lf, lsname, t, ltname,
839 static inline int mdo_is_subdir(const struct lu_env *env,
840 struct md_object *mo,
841 const struct lu_fid *fid,
844 LASSERT(mo->mo_dir_ops->mdo_is_subdir);
845 return mo->mo_dir_ops->mdo_is_subdir(env, mo, fid, sfid);
848 static inline int mdo_link(const struct lu_env *env,
851 const struct lu_name *lname,
854 LASSERT(s->mo_dir_ops->mdo_link);
855 return s->mo_dir_ops->mdo_link(env, p, s, lname, ma);
858 static inline int mdo_unlink(const struct lu_env *env,
861 const struct lu_name *lname,
864 LASSERT(c->mo_dir_ops->mdo_unlink);
865 return c->mo_dir_ops->mdo_unlink(env, p, c, lname, ma);
868 static inline int mdo_name_insert(const struct lu_env *env,
870 const struct lu_name *lname,
871 const struct lu_fid *f,
872 const struct md_attr *ma)
874 LASSERT(p->mo_dir_ops->mdo_name_insert);
875 return p->mo_dir_ops->mdo_name_insert(env, p, lname, f, ma);
878 static inline int mdo_name_remove(const struct lu_env *env,
880 const struct lu_name *lname,
881 const struct md_attr *ma)
883 LASSERT(p->mo_dir_ops->mdo_name_remove);
884 return p->mo_dir_ops->mdo_name_remove(env, p, lname, ma);
887 static inline int mdo_rename_tgt(const struct lu_env *env,
890 const struct lu_fid *lf,
891 const struct lu_name *lname,
895 LASSERT(t->mo_dir_ops->mdo_rename_tgt);
896 return t->mo_dir_ops->mdo_rename_tgt(env, p, t, lf, lname, ma);
898 LASSERT(p->mo_dir_ops->mdo_rename_tgt);
899 return p->mo_dir_ops->mdo_rename_tgt(env, p, t, lf, lname, ma);
905 * Structure to hold object information. This is used to create object
906 * \pre llod_dir exist
908 struct lu_local_obj_desc {
909 const char *llod_dir;
910 const char *llod_name;
913 const struct dt_index_features *llod_feat;
914 cfs_list_t llod_linkage;
917 struct md_object *llo_store_resolve(const struct lu_env *env,
918 struct md_device *md,
919 struct dt_device *dt,
923 struct md_object *llo_store_open(const struct lu_env *env,
924 struct md_device *md,
925 struct dt_device *dt,
930 struct md_object *llo_store_create_index(const struct lu_env *env,
931 struct md_device *md,
932 struct dt_device *dt,
935 const struct lu_fid *fid,
936 const struct dt_index_features *feat);
938 struct md_object *llo_store_create(const struct lu_env *env,
939 struct md_device *md,
940 struct dt_device *dt,
943 const struct lu_fid *fid);
945 void llo_local_obj_register(struct lu_local_obj_desc *);
946 void llo_local_obj_unregister(struct lu_local_obj_desc *);
948 int llo_local_objects_setup(const struct lu_env *env,
949 struct md_device * md,
950 struct dt_device * dt);
953 #endif /* _LINUX_MD_OBJECT_H */