1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * lustre/osd/osd_handler.c
5 * Top-level entry points into osd module
7 * Copyright (c) 2006 Cluster File Systems, Inc.
8 * Author: Nikita Danilov <nikita@clusterfs.com>
10 * This file is part of the Lustre file system, http://www.lustre.org
11 * Lustre is a trademark of Cluster File Systems, Inc.
13 * You may have signed or agreed to another license before downloading
14 * this software. If so, you are bound by the terms and conditions
15 * of that agreement, and the following does not apply to you. See the
16 * LICENSE file included with this distribution for more information.
18 * If you did not agree to a different license, then this copy of Lustre
19 * is open source software; you can redistribute it and/or modify it
20 * under the terms of version 2 of the GNU General Public License as
21 * published by the Free Software Foundation.
23 * In either case, Lustre is distributed in the hope that it will be
24 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
25 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26 * license text for more details.
30 # define EXPORT_SYMTAB
32 #define DEBUG_SUBSYSTEM S_MDS
34 #include <linux/module.h>
36 /* LUSTRE_VERSION_CODE */
37 #include <lustre_ver.h>
38 /* prerequisite for linux/xattr.h */
39 #include <linux/types.h>
40 /* prerequisite for linux/xattr.h */
42 /* XATTR_{REPLACE,CREATE} */
43 #include <linux/xattr.h>
45 * XXX temporary stuff: direct access to ldiskfs/jdb. Interface between osd
46 * and file system is not yet specified.
48 /* handle_t, journal_start(), journal_stop() */
49 #include <linux/jbd.h>
51 #include <linux/ldiskfs_fs.h>
52 #include <linux/ldiskfs_jbd.h>
57 * struct OBD_{ALLOC,FREE}*()
60 #include <obd_support.h>
61 /* struct ptlrpc_thread */
62 #include <lustre_net.h>
65 #include <lustre_fid.h>
66 #include <linux/lustre_iam.h>
68 #include "osd_internal.h"
71 struct osd_directory {
72 struct iam_container od_container;
73 struct iam_descr od_descr;
74 struct semaphore od_sem;
78 struct dt_object oo_dt;
80 * Inode for file system object represented by this osd_object. This
81 * inode is pinned for the whole duration of lu_object life.
83 * Not modified concurrently (either setup early during object
84 * creation, or assigned by osd_object_create() under write lock).
86 struct inode *oo_inode;
87 struct rw_semaphore oo_sem;
88 struct osd_directory *oo_dir;
89 /* protects inode attributes. */
92 const struct lu_env *oo_owner;
96 static int osd_root_get (const struct lu_env *env,
97 struct dt_device *dev, struct lu_fid *f);
99 static int lu_device_is_osd (const struct lu_device *d);
100 static void osd_mod_exit (void) __exit;
101 static int osd_mod_init (void) __init;
102 static int osd_type_init (struct lu_device_type *t);
103 static void osd_type_fini (struct lu_device_type *t);
104 static int osd_object_init (const struct lu_env *env,
105 struct lu_object *l);
106 static void osd_object_release(const struct lu_env *env,
107 struct lu_object *l);
108 static int osd_object_print (const struct lu_env *env, void *cookie,
109 lu_printer_t p, const struct lu_object *o);
110 static struct lu_device *osd_device_free (const struct lu_env *env,
111 struct lu_device *m);
112 static void *osd_key_init (const struct lu_context *ctx,
113 struct lu_context_key *key);
114 static void osd_key_fini (const struct lu_context *ctx,
115 struct lu_context_key *key, void *data);
116 static void osd_key_exit (const struct lu_context *ctx,
117 struct lu_context_key *key, void *data);
118 static int osd_has_index (const struct osd_object *obj);
119 static void osd_object_init0 (struct osd_object *obj);
120 static int osd_device_init (const struct lu_env *env,
121 struct lu_device *d, const char *,
123 static int osd_fid_lookup (const struct lu_env *env,
124 struct osd_object *obj,
125 const struct lu_fid *fid);
126 static void osd_inode_getattr (const struct lu_env *env,
127 struct inode *inode, struct lu_attr *attr);
128 static void osd_inode_setattr (const struct lu_env *env,
129 struct inode *inode, const struct lu_attr *attr);
130 static int osd_param_is_sane (const struct osd_device *dev,
131 const struct txn_param *param);
132 static int osd_index_lookup (const struct lu_env *env,
133 struct dt_object *dt,
134 struct dt_rec *rec, const struct dt_key *key,
135 struct lustre_capa *capa);
136 static int osd_index_insert (const struct lu_env *env,
137 struct dt_object *dt,
138 const struct dt_rec *rec,
139 const struct dt_key *key,
140 struct thandle *handle,
141 struct lustre_capa *capa);
142 static int osd_index_delete (const struct lu_env *env,
143 struct dt_object *dt, const struct dt_key *key,
144 struct thandle *handle,
145 struct lustre_capa *capa);
146 static int osd_index_probe (const struct lu_env *env,
147 struct osd_object *o,
148 const struct dt_index_features *feat);
149 static int osd_index_try (const struct lu_env *env,
150 struct dt_object *dt,
151 const struct dt_index_features *feat);
152 static void osd_index_fini (struct osd_object *o);
154 static void osd_it_fini (const struct lu_env *env, struct dt_it *di);
155 static int osd_it_get (const struct lu_env *env,
156 struct dt_it *di, const struct dt_key *key);
157 static void osd_it_put (const struct lu_env *env, struct dt_it *di);
158 static int osd_it_next (const struct lu_env *env, struct dt_it *di);
159 static int osd_it_del (const struct lu_env *env, struct dt_it *di,
161 static int osd_it_key_size (const struct lu_env *env,
162 const struct dt_it *di);
163 static void osd_conf_get (const struct lu_env *env,
164 const struct dt_device *dev,
165 struct dt_device_param *param);
166 static void osd_trans_stop (const struct lu_env *env,
168 static int osd_object_is_root(const struct osd_object *obj);
170 static struct osd_object *osd_obj (const struct lu_object *o);
171 static struct osd_device *osd_dev (const struct lu_device *d);
172 static struct osd_device *osd_dt_dev (const struct dt_device *d);
173 static struct osd_object *osd_dt_obj (const struct dt_object *d);
174 static struct osd_device *osd_obj2dev (const struct osd_object *o);
175 static struct lu_device *osd2lu_dev (struct osd_device *osd);
176 static struct lu_device *osd_device_fini (const struct lu_env *env,
177 struct lu_device *d);
178 static struct lu_device *osd_device_alloc (const struct lu_env *env,
179 struct lu_device_type *t,
180 struct lustre_cfg *cfg);
181 static struct lu_object *osd_object_alloc (const struct lu_env *env,
182 const struct lu_object_header *hdr,
183 struct lu_device *d);
184 static struct inode *osd_iget (struct osd_thread_info *info,
185 struct osd_device *dev,
186 const struct osd_inode_id *id);
187 static struct super_block *osd_sb (const struct osd_device *dev);
188 static struct dt_it *osd_it_init (const struct lu_env *env,
189 struct dt_object *dt, int wable,
190 struct lustre_capa *capa);
191 static struct dt_key *osd_it_key (const struct lu_env *env,
192 const struct dt_it *di);
193 static struct dt_rec *osd_it_rec (const struct lu_env *env,
194 const struct dt_it *di);
195 static struct timespec *osd_inode_time (const struct lu_env *env,
198 static struct thandle *osd_trans_start (const struct lu_env *env,
200 struct txn_param *p);
201 static journal_t *osd_journal (const struct osd_device *dev);
203 static struct lu_device_type_operations osd_device_type_ops;
204 static struct lu_device_type osd_device_type;
205 static struct lu_object_operations osd_lu_obj_ops;
206 static struct obd_ops osd_obd_device_ops;
207 static struct lu_device_operations osd_lu_ops;
208 static struct lu_context_key osd_key;
209 static struct dt_object_operations osd_obj_ops;
210 static struct dt_body_operations osd_body_ops;
211 static struct dt_index_operations osd_index_ops;
212 static struct dt_index_operations osd_index_compat_ops;
215 struct thandle ot_super;
217 struct journal_callback ot_jcb;
221 * Invariants, assertions.
225 * XXX: do not enable this, until invariant checking code is made thread safe
226 * in the face of pdirops locking.
228 #define OSD_INVARIANT_CHECKS (0)
230 #if OSD_INVARIANT_CHECKS
231 static int osd_invariant(const struct osd_object *obj)
235 ergo(obj->oo_inode != NULL,
236 obj->oo_inode->i_sb == osd_sb(osd_obj2dev(obj)) &&
237 atomic_read(&obj->oo_inode->i_count) > 0) &&
238 ergo(obj->oo_dir != NULL &&
239 obj->oo_dir->od_conationer.ic_object != NULL,
240 obj->oo_dir->od_conationer.ic_object == obj->oo_inode);
243 #define osd_invariant(obj) (1)
246 static inline struct osd_thread_info *osd_oti_get(const struct lu_env *env)
248 return lu_context_key_get(&env->le_ctx, &osd_key);
253 * Concurrency: doesn't matter
255 static int osd_read_locked(const struct lu_env *env, struct osd_object *o)
257 return osd_oti_get(env)->oti_r_locks > 0;
261 * Concurrency: doesn't matter
263 static int osd_write_locked(const struct lu_env *env, struct osd_object *o)
265 struct osd_thread_info *oti = osd_oti_get(env);
266 return oti->oti_w_locks > 0 && o->oo_owner == env;
269 #define OSD_COUNTERS_DO(exp) exp
273 #define osd_read_locked(env, o) (1)
274 #define osd_write_locked(env, o) (1)
275 #define OSD_COUNTERS_DO(exp) ((void)0)
279 * Concurrency: doesn't access mutable data
281 static int osd_root_get(const struct lu_env *env,
282 struct dt_device *dev, struct lu_fid *f)
286 inode = osd_sb(osd_dt_dev(dev))->s_root->d_inode;
287 lu_igif_build(f, inode->i_ino, inode->i_generation);
292 * OSD object methods.
296 * Concurrency: no concurrent access is possible that early in object
299 static struct lu_object *osd_object_alloc(const struct lu_env *env,
300 const struct lu_object_header *hdr,
303 struct osd_object *mo;
309 l = &mo->oo_dt.do_lu;
310 dt_object_init(&mo->oo_dt, NULL, d);
311 mo->oo_dt.do_ops = &osd_obj_ops;
312 l->lo_ops = &osd_lu_obj_ops;
313 init_rwsem(&mo->oo_sem);
314 spin_lock_init(&mo->oo_guard);
321 * Concurrency: shouldn't matter.
323 static void osd_object_init0(struct osd_object *obj)
325 LASSERT(obj->oo_inode != NULL);
326 obj->oo_dt.do_body_ops = &osd_body_ops;
327 obj->oo_dt.do_lu.lo_header->loh_attr |=
328 (LOHA_EXISTS | (obj->oo_inode->i_mode & S_IFMT));
332 * Concurrency: no concurrent access is possible that early in object
335 static int osd_object_init(const struct lu_env *env, struct lu_object *l)
337 struct osd_object *obj = osd_obj(l);
340 LASSERT(osd_invariant(obj));
342 result = osd_fid_lookup(env, obj, lu_object_fid(l));
344 if (obj->oo_inode != NULL)
345 osd_object_init0(obj);
347 LASSERT(osd_invariant(obj));
352 * Concurrency: no concurrent access is possible that late in object
355 static void osd_object_free(const struct lu_env *env, struct lu_object *l)
357 struct osd_object *obj = osd_obj(l);
359 LASSERT(osd_invariant(obj));
361 dt_object_fini(&obj->oo_dt);
365 static struct iam_path_descr *osd_ipd_get(const struct lu_env *env,
366 const struct iam_container *bag)
368 return bag->ic_descr->id_ops->id_ipd_alloc(bag,
369 osd_oti_get(env)->oti_ipd);
372 static void osd_ipd_put(const struct lu_env *env,
373 const struct iam_container *bag,
374 struct iam_path_descr *ipd)
376 bag->ic_descr->id_ops->id_ipd_free(ipd);
380 * Concurrency: no concurrent access is possible that late in object
383 static void osd_index_fini(struct osd_object *o)
385 struct iam_container *bag;
387 if (o->oo_dir != NULL) {
388 bag = &o->oo_dir->od_container;
389 if (o->oo_inode != NULL) {
390 if (bag->ic_object == o->oo_inode)
391 iam_container_fini(bag);
393 OBD_FREE_PTR(o->oo_dir);
399 * Concurrency: no concurrent access is possible that late in object
400 * life-cycle (for all existing callers, that is. New callers have to provide
401 * their own locking.)
403 static int osd_inode_unlinked(const struct inode *inode)
405 return inode->i_nlink == 0;
409 OSD_TXN_OI_DELETE_CREDITS = 20,
410 OSD_TXN_INODE_DELETE_CREDITS = 20
414 * Concurrency: no concurrent access is possible that late in object
417 static int osd_inode_remove(const struct lu_env *env, struct osd_object *obj)
419 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
420 struct osd_device *osd = osd_obj2dev(obj);
421 struct osd_thread_info *oti = osd_oti_get(env);
422 struct txn_param *prm = &oti->oti_txn;
426 txn_param_init(prm, OSD_TXN_OI_DELETE_CREDITS +
427 OSD_TXN_INODE_DELETE_CREDITS);
428 th = osd_trans_start(env, &osd->od_dt_dev, prm);
430 result = osd_oi_delete(oti, &osd->od_oi, fid, th);
431 osd_trans_stop(env, th);
433 result = PTR_ERR(th);
438 * Called just before object is freed. Releases all resources except for
439 * object itself (that is released by osd_object_free()).
441 * Concurrency: no concurrent access is possible that late in object
444 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
446 struct osd_object *obj = osd_obj(l);
447 struct inode *inode = obj->oo_inode;
449 LASSERT(osd_invariant(obj));
452 * If object is unlinked remove fid->ino mapping from object index.
454 * File body will be deleted by iput().
461 if (osd_inode_unlinked(inode)) {
462 result = osd_inode_remove(env, obj);
464 LU_OBJECT_DEBUG(D_ERROR, env, l,
465 "Failed to cleanup: %d\n",
469 obj->oo_inode = NULL;
474 * Concurrency: ->loo_object_release() is called under site spin-lock.
476 static void osd_object_release(const struct lu_env *env,
479 struct osd_object *o = osd_obj(l);
481 LASSERT(!lu_object_is_dying(l->lo_header));
482 if (o->oo_inode != NULL && osd_inode_unlinked(o->oo_inode))
483 set_bit(LU_OBJECT_HEARD_BANSHEE, &l->lo_header->loh_flags);
487 * Concurrency: shouldn't matter.
489 static int osd_object_print(const struct lu_env *env, void *cookie,
490 lu_printer_t p, const struct lu_object *l)
492 struct osd_object *o = osd_obj(l);
495 if (o->oo_dir != NULL)
496 d = o->oo_dir->od_container.ic_descr;
499 return (*p)(env, cookie, LUSTRE_OSD_NAME"-object@%p(i:%p:%lu/%u)[%s]",
501 o->oo_inode ? o->oo_inode->i_ino : 0UL,
502 o->oo_inode ? o->oo_inode->i_generation : 0,
503 d ? d->id_ops->id_name : "plain");
507 * Concurrency: shouldn't matter.
509 int osd_statfs(const struct lu_env *env, struct dt_device *d,
512 struct osd_device *osd = osd_dt_dev(d);
513 struct super_block *sb = osd_sb(osd);
516 spin_lock(&osd->od_osfs_lock);
518 if (cfs_time_before_64(osd->od_osfs_age, cfs_time_shift_64(-1))) {
519 result = ll_do_statfs(sb, &osd->od_kstatfs);
520 if (likely(result == 0)) /* N.B. statfs can't really fail */
521 osd->od_osfs_age = cfs_time_current_64();
524 if (likely(result == 0))
525 *sfs = osd->od_kstatfs;
526 spin_unlock(&osd->od_osfs_lock);
532 * Concurrency: doesn't access mutable data.
534 static void osd_conf_get(const struct lu_env *env,
535 const struct dt_device *dev,
536 struct dt_device_param *param)
539 * XXX should be taken from not-yet-existing fs abstraction layer.
541 param->ddp_max_name_len = LDISKFS_NAME_LEN;
542 param->ddp_max_nlink = LDISKFS_LINK_MAX;
543 param->ddp_block_shift = osd_sb(osd_dt_dev(dev))->s_blocksize_bits;
551 * Concurrency: doesn't access mutable data.
553 static int osd_param_is_sane(const struct osd_device *dev,
554 const struct txn_param *param)
556 return param->tp_credits <= osd_journal(dev)->j_max_transaction_buffers;
560 * Concurrency: shouldn't matter.
562 static void osd_trans_commit_cb(struct journal_callback *jcb, int error)
564 struct osd_thandle *oh = container_of0(jcb, struct osd_thandle, ot_jcb);
565 struct thandle *th = &oh->ot_super;
566 struct dt_device *dev = th->th_dev;
568 LASSERT(dev != NULL);
569 LASSERT(oh->ot_handle == NULL);
572 CERROR("transaction @0x%p commit error: %d\n", th, error);
574 struct lu_env *env = &osd_dt_dev(dev)->od_env_for_commit;
576 * This od_env_for_commit is only for commit usage. see
579 lu_context_enter(&env->le_ctx);
580 dt_txn_hook_commit(env, th);
581 lu_context_exit(&env->le_ctx);
584 lu_device_put(&dev->dd_lu_dev);
587 lu_context_exit(&th->th_ctx);
588 lu_context_fini(&th->th_ctx);
593 * Concurrency: shouldn't matter.
595 static struct thandle *osd_trans_start(const struct lu_env *env,
599 struct osd_device *dev = osd_dt_dev(d);
601 struct osd_thandle *oh;
607 hook_res = dt_txn_hook_start(env, d, p);
609 RETURN(ERR_PTR(hook_res));
611 if (osd_param_is_sane(dev, p)) {
612 OBD_ALLOC_GFP(oh, sizeof *oh, CFS_ALLOC_IO);
615 * XXX temporary stuff. Some abstraction layer should
619 jh = journal_start(osd_journal(dev), p->tp_credits);
625 jh->h_sync = p->tp_sync;
626 lu_device_get(&d->dd_lu_dev);
627 /* add commit callback */
628 lu_context_init(&th->th_ctx, LCT_TX_HANDLE);
629 lu_context_enter(&th->th_ctx);
630 journal_callback_set(jh, osd_trans_commit_cb,
631 (struct journal_callback *)&oh->ot_jcb);
634 struct osd_thread_info *oti =
637 LASSERT(oti->oti_txns == 0);
638 LASSERT(oti->oti_r_locks == 0);
639 LASSERT(oti->oti_w_locks == 0);
648 th = ERR_PTR(-ENOMEM);
650 CERROR("Invalid transaction parameters\n");
651 th = ERR_PTR(-EINVAL);
658 * Concurrency: shouldn't matter.
660 static void osd_trans_stop(const struct lu_env *env, struct thandle *th)
663 struct osd_thandle *oh;
667 oh = container_of0(th, struct osd_thandle, ot_super);
668 if (oh->ot_handle != NULL) {
669 handle_t *hdl = oh->ot_handle;
671 * XXX temporary stuff. Some abstraction layer should be used.
673 result = dt_txn_hook_stop(env, th);
675 CERROR("Failure in transaction hook: %d\n", result);
678 oh->ot_handle = NULL;
679 result = journal_stop(hdl);
681 CERROR("Failure to stop transaction: %d\n", result);
685 struct osd_thread_info *oti = osd_oti_get(env);
687 LASSERT(oti->oti_txns == 1);
688 LASSERT(oti->oti_r_locks == 0);
689 LASSERT(oti->oti_w_locks == 0);
698 * Concurrency: shouldn't matter.
700 static int osd_sync(const struct lu_env *env, struct dt_device *d)
702 CDEBUG(D_HA, "syncing OSD %s\n", LUSTRE_OSD_NAME);
703 return ldiskfs_force_commit(osd_sb(osd_dt_dev(d)));
707 * Concurrency: shouldn't matter.
709 lvfs_sbdev_type fsfilt_ldiskfs_journal_sbdev(struct super_block *);
711 static void osd_ro(const struct lu_env *env, struct dt_device *d)
715 CERROR("*** setting device %s read-only ***\n", LUSTRE_OSD_NAME);
717 __lvfs_set_rdonly(lvfs_sbdev(osd_sb(osd_dt_dev(d))),
718 fsfilt_ldiskfs_journal_sbdev(osd_sb(osd_dt_dev(d))));
723 * Concurrency: serialization provided by callers.
725 static int osd_init_capa_ctxt(const struct lu_env *env, struct dt_device *d,
726 int mode, unsigned long timeout, __u32 alg,
727 struct lustre_capa_key *keys)
729 struct osd_device *dev = osd_dt_dev(d);
732 dev->od_fl_capa = mode;
733 dev->od_capa_timeout = timeout;
734 dev->od_capa_alg = alg;
735 dev->od_capa_keys = keys;
739 /* Note: we did not count into QUOTA here, If we mount with --data_journal
741 static const int osd_dto_credits[DTO_NR] = {
743 * Insert/Delete. IAM EXT3_INDEX_EXTRA_TRANS_BLOCKS(8) +
744 * EXT3_SINGLEDATA_TRANS_BLOCKS 8 XXX Note: maybe iam need more,since
745 * iam have more level than Ext3 htree
747 [DTO_INDEX_INSERT] = 16,
748 [DTO_INDEX_DELETE] = 16,
749 [DTO_IDNEX_UPDATE] = 16,
751 * Create a object. Same as create object in Ext3 filesystem, but did
752 * not count QUOTA i EXT3_DATA_TRANS_BLOCKS(12) +
753 * INDEX_EXTRA_BLOCKS(8) + 3(inode bits,groups, GDT)
755 [DTO_OBJECT_CREATE] = 23,
756 [DTO_OBJECT_DELETE] = 23,
758 * Attr set credits 3 inode, group, GDT
762 * XATTR_SET. SAME AS XATTR of EXT3 EXT3_DATA_TRANS_BLOCKS XXX Note:
763 * in original MDS implmentation EXT3_INDEX_EXTRA_TRANS_BLOCKS are
764 * also counted in. Do not know why?
766 [DTO_XATTR_SET] = 16,
768 /* creadits for inode change during write */
769 [DTO_WRITE_BASE] = 3,
770 /* credits for single block write */
771 [DTO_WRITE_BLOCK] = 12
774 static int osd_credit_get(const struct lu_env *env, struct dt_device *d,
777 LASSERT(0 <= op && op < ARRAY_SIZE(osd_dto_credits));
778 return osd_dto_credits[op];
781 static struct dt_device_operations osd_dt_ops = {
782 .dt_root_get = osd_root_get,
783 .dt_statfs = osd_statfs,
784 .dt_trans_start = osd_trans_start,
785 .dt_trans_stop = osd_trans_stop,
786 .dt_conf_get = osd_conf_get,
789 .dt_credit_get = osd_credit_get,
790 .dt_init_capa_ctxt = osd_init_capa_ctxt,
793 static void osd_object_read_lock(const struct lu_env *env,
794 struct dt_object *dt)
796 struct osd_object *obj = osd_dt_obj(dt);
798 LASSERT(osd_invariant(obj));
800 OSD_COUNTERS_DO(LASSERT(obj->oo_owner != env));
801 down_read(&obj->oo_sem);
804 struct osd_thread_info *oti = osd_oti_get(env);
806 LASSERT(obj->oo_owner == NULL);
812 static void osd_object_write_lock(const struct lu_env *env,
813 struct dt_object *dt)
815 struct osd_object *obj = osd_dt_obj(dt);
817 LASSERT(osd_invariant(obj));
819 OSD_COUNTERS_DO(LASSERT(obj->oo_owner != env));
820 down_write(&obj->oo_sem);
823 struct osd_thread_info *oti = osd_oti_get(env);
825 LASSERT(obj->oo_owner == NULL);
832 static void osd_object_read_unlock(const struct lu_env *env,
833 struct dt_object *dt)
835 struct osd_object *obj = osd_dt_obj(dt);
837 LASSERT(osd_invariant(obj));
840 struct osd_thread_info *oti = osd_oti_get(env);
842 LASSERT(oti->oti_r_locks > 0);
846 up_read(&obj->oo_sem);
849 static void osd_object_write_unlock(const struct lu_env *env,
850 struct dt_object *dt)
852 struct osd_object *obj = osd_dt_obj(dt);
854 LASSERT(osd_invariant(obj));
857 struct osd_thread_info *oti = osd_oti_get(env);
859 LASSERT(obj->oo_owner == env);
860 LASSERT(oti->oti_w_locks > 0);
862 obj->oo_owner = NULL;
865 up_write(&obj->oo_sem);
868 static int capa_is_sane(const struct lu_env *env,
869 struct osd_device *dev,
870 struct lustre_capa *capa,
871 struct lustre_capa_key *keys)
873 struct osd_thread_info *oti = osd_oti_get(env);
878 oc = capa_lookup(dev->od_capa_hash, capa, 0);
880 if (capa_is_expired(oc)) {
881 DEBUG_CAPA(D_ERROR, capa, "expired");
888 spin_lock(&capa_lock);
889 for (i = 0; i < 2; i++) {
890 if (keys[i].lk_keyid == capa->lc_keyid) {
891 oti->oti_capa_key = keys[i];
895 spin_unlock(&capa_lock);
898 DEBUG_CAPA(D_ERROR, capa, "no matched capa key");
902 rc = capa_hmac(oti->oti_capa.lc_hmac, capa, oti->oti_capa_key.lk_key);
905 if (memcmp(oti->oti_capa.lc_hmac, capa->lc_hmac, sizeof(capa->lc_hmac)))
907 DEBUG_CAPA(D_ERROR, capa, "HMAC mismatch");
911 oc = capa_add(dev->od_capa_hash, capa);
917 static int osd_object_auth(const struct lu_env *env, struct dt_object *dt,
918 struct lustre_capa *capa, __u64 opc)
920 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
921 struct osd_device *dev = osd_dev(dt->do_lu.lo_dev);
924 if (!dev->od_fl_capa)
927 if (capa == BYPASS_CAPA)
931 CERROR("no capability is provided for fid "DFID"\n", PFID(fid));
935 if (!lu_fid_eq(fid, &capa->lc_fid)) {
936 DEBUG_CAPA(D_ERROR, capa, "fid "DFID" mismatch with",
941 if (!capa_opc_supported(capa, opc)) {
942 DEBUG_CAPA(D_ERROR, capa, "opc "LPX64" not supported by", opc);
946 if ((rc = capa_is_sane(env, dev, capa, dev->od_capa_keys))) {
947 DEBUG_CAPA(D_ERROR, capa, "insane (rc %d)", rc);
954 static int osd_attr_get(const struct lu_env *env,
955 struct dt_object *dt,
956 struct lu_attr *attr,
957 struct lustre_capa *capa)
959 struct osd_object *obj = osd_dt_obj(dt);
961 LASSERT(dt_object_exists(dt));
962 LASSERT(osd_invariant(obj));
964 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
967 spin_lock(&obj->oo_guard);
968 osd_inode_getattr(env, obj->oo_inode, attr);
969 spin_unlock(&obj->oo_guard);
973 static int osd_attr_set(const struct lu_env *env,
974 struct dt_object *dt,
975 const struct lu_attr *attr,
976 struct thandle *handle,
977 struct lustre_capa *capa)
979 struct osd_object *obj = osd_dt_obj(dt);
981 LASSERT(handle != NULL);
982 LASSERT(dt_object_exists(dt));
983 LASSERT(osd_invariant(obj));
985 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
988 spin_lock(&obj->oo_guard);
989 osd_inode_setattr(env, obj->oo_inode, attr);
990 spin_unlock(&obj->oo_guard);
992 mark_inode_dirty(obj->oo_inode);
996 static struct timespec *osd_inode_time(const struct lu_env *env,
997 struct inode *inode, __u64 seconds)
999 struct osd_thread_info *oti = osd_oti_get(env);
1000 struct timespec *t = &oti->oti_time;
1002 t->tv_sec = seconds;
1004 *t = timespec_trunc(*t, get_sb_time_gran(inode->i_sb));
1008 static void osd_inode_setattr(const struct lu_env *env,
1009 struct inode *inode, const struct lu_attr *attr)
1013 bits = attr->la_valid;
1015 LASSERT(!(bits & LA_TYPE)); /* Huh? You want too much. */
1017 if (bits & LA_ATIME)
1018 inode->i_atime = *osd_inode_time(env, inode, attr->la_atime);
1019 if (bits & LA_CTIME)
1020 inode->i_ctime = *osd_inode_time(env, inode, attr->la_ctime);
1021 if (bits & LA_MTIME)
1022 inode->i_mtime = *osd_inode_time(env, inode, attr->la_mtime);
1023 if (bits & LA_SIZE) {
1024 LDISKFS_I(inode)->i_disksize = attr->la_size;
1025 i_size_write(inode, attr->la_size);
1027 if (bits & LA_BLOCKS)
1028 inode->i_blocks = attr->la_blocks;
1030 inode->i_mode = (inode->i_mode & S_IFMT) |
1031 (attr->la_mode & ~S_IFMT);
1033 inode->i_uid = attr->la_uid;
1035 inode->i_gid = attr->la_gid;
1036 if (bits & LA_NLINK)
1037 inode->i_nlink = attr->la_nlink;
1039 inode->i_rdev = attr->la_rdev;
1041 if (bits & LA_FLAGS) {
1042 struct ldiskfs_inode_info *li = LDISKFS_I(inode);
1044 li->i_flags = (li->i_flags & ~LDISKFS_FL_USER_MODIFIABLE) |
1045 (attr->la_flags & LDISKFS_FL_USER_MODIFIABLE);
1052 * XXX temporary solution.
1055 static int osd_create_pre(struct osd_thread_info *info, struct osd_object *obj,
1056 struct lu_attr *attr, struct thandle *th)
1061 static int osd_create_post(struct osd_thread_info *info, struct osd_object *obj,
1062 struct lu_attr *attr, struct thandle *th)
1064 LASSERT(obj->oo_inode != NULL);
1066 osd_object_init0(obj);
1070 extern struct inode *ldiskfs_create_inode(handle_t *handle,
1071 struct inode * dir, int mode);
1073 static int osd_mkfile(struct osd_thread_info *info, struct osd_object *obj,
1075 struct dt_allocation_hint *hint,
1079 struct osd_device *osd = osd_obj2dev(obj);
1080 struct osd_thandle *oth;
1081 struct inode *parent;
1082 struct inode *inode;
1084 LASSERT(osd_invariant(obj));
1085 LASSERT(obj->oo_inode == NULL);
1086 LASSERT(osd->od_obj_area != NULL);
1088 oth = container_of(th, struct osd_thandle, ot_super);
1089 LASSERT(oth->ot_handle->h_transaction != NULL);
1091 if (hint && hint->dah_parent)
1092 parent = osd_dt_obj(hint->dah_parent)->oo_inode;
1094 parent = osd->od_obj_area->d_inode;
1095 LASSERT(parent->i_op != NULL);
1097 inode = ldiskfs_create_inode(oth->ot_handle, parent, mode);
1098 if (!IS_ERR(inode)) {
1099 obj->oo_inode = inode;
1102 result = PTR_ERR(inode);
1103 LASSERT(osd_invariant(obj));
1108 extern int iam_lvar_create(struct inode *obj, int keysize, int ptrsize,
1109 int recsize, handle_t *handle);
1115 static int osd_mkdir(struct osd_thread_info *info, struct osd_object *obj,
1116 struct lu_attr *attr,
1117 struct dt_allocation_hint *hint,
1121 struct osd_thandle *oth;
1123 LASSERT(S_ISDIR(attr->la_mode));
1125 oth = container_of(th, struct osd_thandle, ot_super);
1126 LASSERT(oth->ot_handle->h_transaction != NULL);
1127 result = osd_mkfile(info, obj, (attr->la_mode &
1128 (S_IFMT | S_IRWXUGO | S_ISVTX)), hint, th);
1130 LASSERT(obj->oo_inode != NULL);
1132 * XXX uh-oh... call low-level iam function directly.
1134 result = iam_lvar_create(obj->oo_inode, OSD_NAME_LEN, 4,
1135 sizeof (struct lu_fid_pack),
1141 static int osd_mkreg(struct osd_thread_info *info, struct osd_object *obj,
1142 struct lu_attr *attr,
1143 struct dt_allocation_hint *hint,
1146 LASSERT(S_ISREG(attr->la_mode));
1147 return osd_mkfile(info, obj, (attr->la_mode &
1148 (S_IFMT | S_IRWXUGO | S_ISVTX)), hint, th);
1151 static int osd_mksym(struct osd_thread_info *info, struct osd_object *obj,
1152 struct lu_attr *attr,
1153 struct dt_allocation_hint *hint,
1156 LASSERT(S_ISLNK(attr->la_mode));
1157 return osd_mkfile(info, obj, (attr->la_mode &
1158 (S_IFMT | S_IRWXUGO | S_ISVTX)), hint, th);
1161 static int osd_mknod(struct osd_thread_info *info, struct osd_object *obj,
1162 struct lu_attr *attr,
1163 struct dt_allocation_hint *hint,
1167 struct osd_device *osd = osd_obj2dev(obj);
1169 umode_t mode = attr->la_mode & (S_IFMT | S_IRWXUGO | S_ISVTX);
1171 LASSERT(osd_invariant(obj));
1172 LASSERT(obj->oo_inode == NULL);
1173 LASSERT(osd->od_obj_area != NULL);
1174 LASSERT(S_ISCHR(mode) || S_ISBLK(mode) ||
1175 S_ISFIFO(mode) || S_ISSOCK(mode));
1177 dir = osd->od_obj_area->d_inode;
1178 LASSERT(dir->i_op != NULL);
1180 result = osd_mkfile(info, obj, mode, hint, th);
1182 LASSERT(obj->oo_inode != NULL);
1183 init_special_inode(obj->oo_inode, mode, attr->la_rdev);
1185 LASSERT(osd_invariant(obj));
1189 typedef int (*osd_obj_type_f)(struct osd_thread_info *, struct osd_object *,
1191 struct dt_allocation_hint *hint,
1194 static osd_obj_type_f osd_create_type_f(__u32 mode)
1196 osd_obj_type_f result;
1222 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
1223 struct dt_object *parent, umode_t child_mode)
1227 memset(ah, 0, sizeof(*ah));
1228 ah->dah_parent = parent;
1229 ah->dah_mode = child_mode;
1234 * Concurrency: @dt is write locked.
1236 static int osd_object_create(const struct lu_env *env, struct dt_object *dt,
1237 struct lu_attr *attr,
1238 struct dt_allocation_hint *hint,
1241 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
1242 struct osd_object *obj = osd_dt_obj(dt);
1243 struct osd_device *osd = osd_obj2dev(obj);
1244 struct osd_thread_info *info = osd_oti_get(env);
1249 LASSERT(osd_invariant(obj));
1250 LASSERT(!dt_object_exists(dt));
1251 LASSERT(osd_write_locked(env, obj));
1252 LASSERT(th != NULL);
1255 * XXX missing: Quote handling.
1258 result = osd_create_pre(info, obj, attr, th);
1260 result = osd_create_type_f(attr->la_mode & S_IFMT)(info, obj,
1263 result = osd_create_post(info, obj, attr, th);
1266 struct osd_inode_id *id = &info->oti_id;
1268 LASSERT(obj->oo_inode != NULL);
1270 id->oii_ino = obj->oo_inode->i_ino;
1271 id->oii_gen = obj->oo_inode->i_generation;
1273 result = osd_oi_insert(info, &osd->od_oi, fid, id, th);
1276 LASSERT(ergo(result == 0, dt_object_exists(dt)));
1277 LASSERT(osd_invariant(obj));
1282 * Concurrency: @dt is write locked.
1284 static void osd_object_ref_add(const struct lu_env *env,
1285 struct dt_object *dt,
1288 struct osd_object *obj = osd_dt_obj(dt);
1289 struct inode *inode = obj->oo_inode;
1291 LASSERT(osd_invariant(obj));
1292 LASSERT(dt_object_exists(dt));
1293 LASSERT(osd_write_locked(env, obj));
1294 LASSERT(th != NULL);
1296 spin_lock(&obj->oo_guard);
1297 if (inode->i_nlink < LDISKFS_LINK_MAX) {
1299 spin_unlock(&obj->oo_guard);
1300 mark_inode_dirty(inode);
1302 spin_unlock(&obj->oo_guard);
1303 LU_OBJECT_DEBUG(D_ERROR, env, &dt->do_lu,
1304 "Overflowed nlink\n");
1306 LASSERT(osd_invariant(obj));
1310 * Concurrency: @dt is write locked.
1312 static void osd_object_ref_del(const struct lu_env *env,
1313 struct dt_object *dt,
1316 struct osd_object *obj = osd_dt_obj(dt);
1317 struct inode *inode = obj->oo_inode;
1319 LASSERT(osd_invariant(obj));
1320 LASSERT(dt_object_exists(dt));
1321 LASSERT(osd_write_locked(env, obj));
1322 LASSERT(th != NULL);
1324 spin_lock(&obj->oo_guard);
1325 if (inode->i_nlink > 0) {
1327 spin_unlock(&obj->oo_guard);
1328 mark_inode_dirty(inode);
1330 spin_unlock(&obj->oo_guard);
1331 LU_OBJECT_DEBUG(D_ERROR, env, &dt->do_lu,
1332 "Underflowed nlink\n");
1334 LASSERT(osd_invariant(obj));
1338 * Concurrency: @dt is read locked.
1340 static int osd_xattr_get(const struct lu_env *env,
1341 struct dt_object *dt,
1344 struct lustre_capa *capa)
1346 struct osd_object *obj = osd_dt_obj(dt);
1347 struct inode *inode = obj->oo_inode;
1348 struct osd_thread_info *info = osd_oti_get(env);
1349 struct dentry *dentry = &info->oti_dentry;
1351 LASSERT(dt_object_exists(dt));
1352 LASSERT(inode->i_op != NULL && inode->i_op->getxattr != NULL);
1353 LASSERT(osd_read_locked(env, obj) || osd_write_locked(env, obj));
1355 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
1358 dentry->d_inode = inode;
1359 return inode->i_op->getxattr(dentry, name, buf->lb_buf, buf->lb_len);
1363 * Concurrency: @dt is write locked.
1365 static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
1366 const struct lu_buf *buf, const char *name, int fl,
1367 struct thandle *handle, struct lustre_capa *capa)
1369 struct osd_object *obj = osd_dt_obj(dt);
1370 struct inode *inode = obj->oo_inode;
1371 struct osd_thread_info *info = osd_oti_get(env);
1372 struct dentry *dentry = &info->oti_dentry;
1373 struct timespec *t = &info->oti_time;
1374 int fs_flags = 0, rc;
1376 LASSERT(dt_object_exists(dt));
1377 LASSERT(inode->i_op != NULL && inode->i_op->setxattr != NULL);
1378 LASSERT(osd_write_locked(env, obj));
1379 LASSERT(handle != NULL);
1381 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
1384 if (fl & LU_XATTR_REPLACE)
1385 fs_flags |= XATTR_REPLACE;
1387 if (fl & LU_XATTR_CREATE)
1388 fs_flags |= XATTR_CREATE;
1390 dentry->d_inode = inode;
1391 *t = inode->i_ctime;
1392 rc = inode->i_op->setxattr(dentry, name,
1393 buf->lb_buf, buf->lb_len, fs_flags);
1394 if (likely(rc == 0)) {
1395 /* ctime should not be updated with server-side time. */
1396 spin_lock(&obj->oo_guard);
1397 inode->i_ctime = *t;
1398 spin_unlock(&obj->oo_guard);
1399 mark_inode_dirty(inode);
1405 * Concurrency: @dt is read locked.
1407 static int osd_xattr_list(const struct lu_env *env,
1408 struct dt_object *dt,
1410 struct lustre_capa *capa)
1412 struct osd_object *obj = osd_dt_obj(dt);
1413 struct inode *inode = obj->oo_inode;
1414 struct osd_thread_info *info = osd_oti_get(env);
1415 struct dentry *dentry = &info->oti_dentry;
1417 LASSERT(dt_object_exists(dt));
1418 LASSERT(inode->i_op != NULL && inode->i_op->listxattr != NULL);
1419 LASSERT(osd_read_locked(env, obj) || osd_write_locked(env, obj));
1421 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
1424 dentry->d_inode = inode;
1425 return inode->i_op->listxattr(dentry, buf->lb_buf, buf->lb_len);
1429 * Concurrency: @dt is write locked.
1431 static int osd_xattr_del(const struct lu_env *env,
1432 struct dt_object *dt,
1434 struct thandle *handle,
1435 struct lustre_capa *capa)
1437 struct osd_object *obj = osd_dt_obj(dt);
1438 struct inode *inode = obj->oo_inode;
1439 struct osd_thread_info *info = osd_oti_get(env);
1440 struct dentry *dentry = &info->oti_dentry;
1441 struct timespec *t = &info->oti_time;
1444 LASSERT(dt_object_exists(dt));
1445 LASSERT(inode->i_op != NULL && inode->i_op->removexattr != NULL);
1446 LASSERT(osd_write_locked(env, obj));
1447 LASSERT(handle != NULL);
1449 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
1452 dentry->d_inode = inode;
1453 *t = inode->i_ctime;
1454 rc = inode->i_op->removexattr(dentry, name);
1455 if (likely(rc == 0)) {
1456 /* ctime should not be updated with server-side time. */
1457 spin_lock(&obj->oo_guard);
1458 inode->i_ctime = *t;
1459 spin_unlock(&obj->oo_guard);
1460 mark_inode_dirty(inode);
1465 static struct obd_capa *osd_capa_get(const struct lu_env *env,
1466 struct dt_object *dt,
1467 struct lustre_capa *old,
1470 struct osd_thread_info *info = osd_oti_get(env);
1471 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
1472 struct osd_object *obj = osd_dt_obj(dt);
1473 struct osd_device *dev = osd_obj2dev(obj);
1474 struct lustre_capa_key *key = &info->oti_capa_key;
1475 struct lustre_capa *capa = &info->oti_capa;
1476 struct obd_capa *oc;
1480 if (!dev->od_fl_capa)
1481 RETURN(ERR_PTR(-ENOENT));
1483 LASSERT(dt_object_exists(dt));
1484 LASSERT(osd_invariant(obj));
1486 /* renewal sanity check */
1487 if (old && osd_object_auth(env, dt, old, opc))
1488 RETURN(ERR_PTR(-EACCES));
1490 capa->lc_fid = *fid;
1493 capa->lc_flags = dev->od_capa_alg << 24;
1494 capa->lc_timeout = dev->od_capa_timeout;
1495 capa->lc_expiry = 0;
1497 oc = capa_lookup(dev->od_capa_hash, capa, 1);
1499 LASSERT(!capa_is_expired(oc));
1503 spin_lock(&capa_lock);
1504 *key = dev->od_capa_keys[1];
1505 spin_unlock(&capa_lock);
1507 capa->lc_keyid = key->lk_keyid;
1508 capa->lc_expiry = cfs_time_current_sec() + dev->od_capa_timeout;
1510 rc = capa_hmac(capa->lc_hmac, capa, key->lk_key);
1512 DEBUG_CAPA(D_ERROR, capa, "HMAC failed: %d for", rc);
1513 RETURN(ERR_PTR(rc));
1516 oc = capa_add(dev->od_capa_hash, capa);
1520 static struct dt_object_operations osd_obj_ops = {
1521 .do_read_lock = osd_object_read_lock,
1522 .do_write_lock = osd_object_write_lock,
1523 .do_read_unlock = osd_object_read_unlock,
1524 .do_write_unlock = osd_object_write_unlock,
1525 .do_attr_get = osd_attr_get,
1526 .do_attr_set = osd_attr_set,
1527 .do_ah_init = osd_ah_init,
1528 .do_create = osd_object_create,
1529 .do_index_try = osd_index_try,
1530 .do_ref_add = osd_object_ref_add,
1531 .do_ref_del = osd_object_ref_del,
1532 .do_xattr_get = osd_xattr_get,
1533 .do_xattr_set = osd_xattr_set,
1534 .do_xattr_del = osd_xattr_del,
1535 .do_xattr_list = osd_xattr_list,
1536 .do_capa_get = osd_capa_get,
1544 * XXX: Another layering violation for now.
1546 * We don't want to use ->f_op->read methods, because generic file write
1548 * - serializes on ->i_sem, and
1550 * - does a lot of extra work like balance_dirty_pages(),
1552 * which doesn't work for globally shared files like /last-received.
1554 int fsfilt_ldiskfs_read(struct inode *inode, void *buf, int size, loff_t *offs);
1555 int fsfilt_ldiskfs_write_handle(struct inode *inode, void *buf, int bufsize,
1556 loff_t *offs, handle_t *handle);
1558 static ssize_t osd_read(const struct lu_env *env, struct dt_object *dt,
1559 struct lu_buf *buf, loff_t *pos,
1560 struct lustre_capa *capa)
1562 struct inode *inode = osd_dt_obj(dt)->oo_inode;
1564 if (osd_object_auth(env, dt, capa, CAPA_OPC_BODY_READ))
1567 return fsfilt_ldiskfs_read(inode, buf->lb_buf, buf->lb_len, pos);
1570 static ssize_t osd_write(const struct lu_env *env, struct dt_object *dt,
1571 const struct lu_buf *buf, loff_t *pos,
1572 struct thandle *handle, struct lustre_capa *capa)
1574 struct inode *inode = osd_dt_obj(dt)->oo_inode;
1575 struct osd_thandle *oh;
1578 LASSERT(handle != NULL);
1580 if (osd_object_auth(env, dt, capa, CAPA_OPC_BODY_WRITE))
1583 oh = container_of(handle, struct osd_thandle, ot_super);
1584 LASSERT(oh->ot_handle->h_transaction != NULL);
1585 result = fsfilt_ldiskfs_write_handle(inode, buf->lb_buf, buf->lb_len,
1586 pos, oh->ot_handle);
1588 result = buf->lb_len;
1592 static struct dt_body_operations osd_body_ops = {
1593 .dbo_read = osd_read,
1594 .dbo_write = osd_write
1601 static int osd_object_is_root(const struct osd_object *obj)
1603 return osd_sb(osd_obj2dev(obj))->s_root->d_inode == obj->oo_inode;
1606 static int osd_index_probe(const struct lu_env *env, struct osd_object *o,
1607 const struct dt_index_features *feat)
1609 struct iam_descr *descr;
1611 if (osd_object_is_root(o))
1612 return feat == &dt_directory_features;
1614 LASSERT(o->oo_dir != NULL);
1616 descr = o->oo_dir->od_container.ic_descr;
1617 if (feat == &dt_directory_features)
1618 return descr == &iam_htree_compat_param ||
1619 (descr->id_rec_size == sizeof(struct lu_fid_pack) &&
1621 * XXX check that index looks like directory.
1626 feat->dif_keysize_min <= descr->id_key_size &&
1627 descr->id_key_size <= feat->dif_keysize_max &&
1628 feat->dif_recsize_min <= descr->id_rec_size &&
1629 descr->id_rec_size <= feat->dif_recsize_max &&
1630 !(feat->dif_flags & (DT_IND_VARKEY |
1631 DT_IND_VARREC | DT_IND_NONUNQ)) &&
1632 ergo(feat->dif_flags & DT_IND_UPDATE,
1633 1 /* XXX check that object (and file system) is
1637 static int osd_container_init(const struct lu_env *env,
1638 struct osd_object *obj,
1639 struct osd_directory *dir)
1642 struct iam_container *bag;
1644 bag = &dir->od_container;
1645 result = iam_container_init(bag, &dir->od_descr, obj->oo_inode);
1647 result = iam_container_setup(bag);
1649 obj->oo_dt.do_index_ops = &osd_index_ops;
1651 iam_container_fini(bag);
1657 * Concurrency: no external locking is necessary.
1659 static int osd_index_try(const struct lu_env *env, struct dt_object *dt,
1660 const struct dt_index_features *feat)
1663 struct osd_object *obj = osd_dt_obj(dt);
1665 LASSERT(osd_invariant(obj));
1666 LASSERT(dt_object_exists(dt));
1668 if (osd_object_is_root(obj)) {
1669 dt->do_index_ops = &osd_index_compat_ops;
1671 } else if (!osd_has_index(obj)) {
1672 struct osd_directory *dir;
1676 sema_init(&dir->od_sem, 1);
1678 spin_lock(&obj->oo_guard);
1679 if (obj->oo_dir == NULL)
1683 * Concurrent thread allocated container data.
1686 spin_unlock(&obj->oo_guard);
1688 * Now, that we have container data, serialize its
1691 down(&obj->oo_dir->od_sem);
1693 * recheck under lock.
1695 if (!osd_has_index(obj))
1696 result = osd_container_init(env, obj, dir);
1699 up(&obj->oo_dir->od_sem);
1706 if (!osd_index_probe(env, obj, feat))
1709 LASSERT(osd_invariant(obj));
1714 static int osd_index_delete(const struct lu_env *env, struct dt_object *dt,
1715 const struct dt_key *key, struct thandle *handle,
1716 struct lustre_capa *capa)
1718 struct osd_object *obj = osd_dt_obj(dt);
1719 struct osd_thandle *oh;
1720 struct iam_path_descr *ipd;
1721 struct iam_container *bag = &obj->oo_dir->od_container;
1726 LASSERT(osd_invariant(obj));
1727 LASSERT(dt_object_exists(dt));
1728 LASSERT(bag->ic_object == obj->oo_inode);
1729 LASSERT(handle != NULL);
1731 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_DELETE))
1734 ipd = osd_ipd_get(env, bag);
1735 if (unlikely(ipd == NULL))
1738 oh = container_of0(handle, struct osd_thandle, ot_super);
1739 LASSERT(oh->ot_handle != NULL);
1740 LASSERT(oh->ot_handle->h_transaction != NULL);
1742 rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
1743 osd_ipd_put(env, bag, ipd);
1744 LASSERT(osd_invariant(obj));
1748 static int osd_index_lookup(const struct lu_env *env, struct dt_object *dt,
1749 struct dt_rec *rec, const struct dt_key *key,
1750 struct lustre_capa *capa)
1752 struct osd_object *obj = osd_dt_obj(dt);
1753 struct iam_path_descr *ipd;
1754 struct iam_container *bag = &obj->oo_dir->od_container;
1759 LASSERT(osd_invariant(obj));
1760 LASSERT(dt_object_exists(dt));
1761 LASSERT(bag->ic_object == obj->oo_inode);
1763 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_LOOKUP))
1766 ipd = osd_ipd_get(env, bag);
1767 if (unlikely(ipd == NULL))
1770 rc = iam_lookup(bag, (const struct iam_key *)key,
1771 (struct iam_rec *)rec, ipd);
1772 osd_ipd_put(env, bag, ipd);
1773 LASSERT(osd_invariant(obj));
1778 static int osd_index_insert(const struct lu_env *env, struct dt_object *dt,
1779 const struct dt_rec *rec, const struct dt_key *key,
1780 struct thandle *th, struct lustre_capa *capa)
1782 struct osd_object *obj = osd_dt_obj(dt);
1783 struct iam_path_descr *ipd;
1784 struct osd_thandle *oh;
1785 struct iam_container *bag = &obj->oo_dir->od_container;
1790 LASSERT(osd_invariant(obj));
1791 LASSERT(dt_object_exists(dt));
1792 LASSERT(bag->ic_object == obj->oo_inode);
1793 LASSERT(th != NULL);
1795 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_INSERT))
1798 ipd = osd_ipd_get(env, bag);
1799 if (unlikely(ipd == NULL))
1802 oh = container_of0(th, struct osd_thandle, ot_super);
1803 LASSERT(oh->ot_handle != NULL);
1804 LASSERT(oh->ot_handle->h_transaction != NULL);
1805 rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
1806 (struct iam_rec *)rec, ipd);
1807 osd_ipd_put(env, bag, ipd);
1808 LASSERT(osd_invariant(obj));
1813 * Iterator operations.
1816 struct osd_object *oi_obj;
1817 struct iam_path_descr *oi_ipd;
1818 struct iam_iterator oi_it;
1821 static struct dt_it *osd_it_init(const struct lu_env *env,
1822 struct dt_object *dt, int writable,
1823 struct lustre_capa *capa)
1826 struct osd_object *obj = osd_dt_obj(dt);
1827 struct lu_object *lo = &dt->do_lu;
1828 struct iam_path_descr *ipd;
1829 struct iam_container *bag = &obj->oo_dir->od_container;
1832 LASSERT(lu_object_exists(lo));
1834 if (osd_object_auth(env, dt, capa, writable ? CAPA_OPC_BODY_WRITE :
1835 CAPA_OPC_BODY_READ))
1836 return ERR_PTR(-EACCES);
1838 flags = writable ? IAM_IT_MOVE|IAM_IT_WRITE : IAM_IT_MOVE;
1842 * XXX: as ipd is allocated within osd_thread_info, assignment
1843 * below implies that iterator usage is confined within single
1846 ipd = osd_ipd_get(env, bag);
1847 if (likely(ipd != NULL)) {
1851 iam_it_init(&it->oi_it, bag, flags, ipd);
1852 return (struct dt_it *)it;
1856 return ERR_PTR(-ENOMEM);
1859 static void osd_it_fini(const struct lu_env *env, struct dt_it *di)
1861 struct osd_it *it = (struct osd_it *)di;
1862 struct osd_object *obj = it->oi_obj;
1864 iam_it_fini(&it->oi_it);
1865 osd_ipd_put(env, &obj->oo_dir->od_container, it->oi_ipd);
1866 lu_object_put(env, &obj->oo_dt.do_lu);
1870 static int osd_it_get(const struct lu_env *env,
1871 struct dt_it *di, const struct dt_key *key)
1873 struct osd_it *it = (struct osd_it *)di;
1875 return iam_it_get(&it->oi_it, (const struct iam_key *)key);
1878 static void osd_it_put(const struct lu_env *env, struct dt_it *di)
1880 struct osd_it *it = (struct osd_it *)di;
1882 iam_it_put(&it->oi_it);
1885 static int osd_it_next(const struct lu_env *env, struct dt_it *di)
1887 struct osd_it *it = (struct osd_it *)di;
1889 return iam_it_next(&it->oi_it);
1892 static int osd_it_del(const struct lu_env *env, struct dt_it *di,
1895 struct osd_it *it = (struct osd_it *)di;
1896 struct osd_thandle *oh;
1898 LASSERT(th != NULL);
1900 oh = container_of0(th, struct osd_thandle, ot_super);
1901 LASSERT(oh->ot_handle != NULL);
1902 LASSERT(oh->ot_handle->h_transaction != NULL);
1904 return iam_it_rec_delete(oh->ot_handle, &it->oi_it);
1907 static struct dt_key *osd_it_key(const struct lu_env *env,
1908 const struct dt_it *di)
1910 struct osd_it *it = (struct osd_it *)di;
1912 return (struct dt_key *)iam_it_key_get(&it->oi_it);
1915 static int osd_it_key_size(const struct lu_env *env, const struct dt_it *di)
1917 struct osd_it *it = (struct osd_it *)di;
1919 return iam_it_key_size(&it->oi_it);
1922 static struct dt_rec *osd_it_rec(const struct lu_env *env,
1923 const struct dt_it *di)
1925 struct osd_it *it = (struct osd_it *)di;
1927 return (struct dt_rec *)iam_it_rec_get(&it->oi_it);
1930 static __u64 osd_it_store(const struct lu_env *env, const struct dt_it *di)
1932 struct osd_it *it = (struct osd_it *)di;
1934 return iam_it_store(&it->oi_it);
1937 static int osd_it_load(const struct lu_env *env,
1938 const struct dt_it *di, __u64 hash)
1940 struct osd_it *it = (struct osd_it *)di;
1942 return iam_it_load(&it->oi_it, hash);
1945 static struct dt_index_operations osd_index_ops = {
1946 .dio_lookup = osd_index_lookup,
1947 .dio_insert = osd_index_insert,
1948 .dio_delete = osd_index_delete,
1950 .init = osd_it_init,
1951 .fini = osd_it_fini,
1955 .next = osd_it_next,
1957 .key_size = osd_it_key_size,
1959 .store = osd_it_store,
1964 static int osd_index_compat_delete(const struct lu_env *env,
1965 struct dt_object *dt,
1966 const struct dt_key *key,
1967 struct thandle *handle,
1968 struct lustre_capa *capa)
1970 struct osd_object *obj = osd_dt_obj(dt);
1972 LASSERT(handle != NULL);
1973 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
1977 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_DELETE))
1981 RETURN(-EOPNOTSUPP);
1985 * Compatibility index operations.
1989 static void osd_build_pack(const struct lu_env *env, struct osd_device *osd,
1990 struct dentry *dentry, struct lu_fid_pack *pack)
1992 struct inode *inode = dentry->d_inode;
1993 struct lu_fid *fid = &osd_oti_get(env)->oti_fid;
1995 lu_igif_build(fid, inode->i_ino, inode->i_generation);
1996 fid_cpu_to_be(fid, fid);
1997 pack->fp_len = sizeof *fid + 1;
1998 memcpy(pack->fp_area, fid, sizeof *fid);
2001 static int osd_index_compat_lookup(const struct lu_env *env,
2002 struct dt_object *dt,
2003 struct dt_rec *rec, const struct dt_key *key,
2004 struct lustre_capa *capa)
2006 struct osd_object *obj = osd_dt_obj(dt);
2008 struct osd_device *osd = osd_obj2dev(obj);
2009 struct osd_thread_info *info = osd_oti_get(env);
2015 * XXX temporary solution.
2017 struct dentry *dentry;
2018 struct dentry *parent;
2020 LASSERT(osd_invariant(obj));
2021 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
2022 LASSERT(osd_has_index(obj));
2024 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_LOOKUP))
2027 info->oti_str.name = (const char *)key;
2028 info->oti_str.len = strlen((const char *)key);
2030 dir = obj->oo_inode;
2031 LASSERT(dir->i_op != NULL && dir->i_op->lookup != NULL);
2033 parent = d_alloc_root(dir);
2037 dentry = d_alloc(parent, &info->oti_str);
2038 if (dentry != NULL) {
2042 * XXX passing NULL for nameidata should work for
2045 d = dir->i_op->lookup(dir, dentry, NULL);
2048 * normal case, result is in @dentry.
2050 if (dentry->d_inode != NULL) {
2051 osd_build_pack(env, osd, dentry,
2052 (struct lu_fid_pack *)rec);
2057 /* What? Disconnected alias? Ppheeeww... */
2058 CERROR("Aliasing where not expected\n");
2066 LASSERT(osd_invariant(obj));
2070 static int osd_add_rec(struct osd_thread_info *info, struct osd_device *dev,
2071 struct inode *dir, struct inode *inode, const char *name)
2075 struct dentry *parent;
2079 info->oti_str.name = name;
2080 info->oti_str.len = strlen(name);
2082 LASSERT(atomic_read(&dir->i_count) > 0);
2084 old = d_alloc(dev->od_obj_area, &info->oti_str);
2086 d_instantiate(old, inode);
2088 LASSERT(atomic_read(&dir->i_count) > 0);
2089 parent = d_alloc_root(dir);
2090 if (parent != NULL) {
2092 LASSERT(atomic_read(&dir->i_count) > 1);
2093 new = d_alloc(parent, &info->oti_str);
2094 LASSERT(atomic_read(&dir->i_count) > 1);
2096 LASSERT(atomic_read(&dir->i_count) > 1);
2097 result = dir->i_op->link(old, dir, new);
2098 LASSERT(atomic_read(&dir->i_count) > 1);
2100 LASSERT(atomic_read(&dir->i_count) > 1);
2102 LASSERT(atomic_read(&dir->i_count) > 1);
2104 LASSERT(atomic_read(&dir->i_count) > 0);
2108 LASSERT(atomic_read(&dir->i_count) > 0);
2114 * XXX Temporary stuff.
2116 static int osd_index_compat_insert(const struct lu_env *env,
2117 struct dt_object *dt,
2118 const struct dt_rec *rec,
2119 const struct dt_key *key, struct thandle *th,
2120 struct lustre_capa *capa)
2122 struct osd_object *obj = osd_dt_obj(dt);
2124 const char *name = (const char *)key;
2126 struct lu_device *ludev = dt->do_lu.lo_dev;
2127 struct lu_object *luch;
2129 struct osd_thread_info *info = osd_oti_get(env);
2130 const struct lu_fid_pack *pack = (const struct lu_fid_pack *)rec;
2131 struct lu_fid *fid = &osd_oti_get(env)->oti_fid;
2135 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
2136 LASSERT(osd_invariant(obj));
2137 LASSERT(th != NULL);
2139 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_INSERT))
2142 result = fid_unpack(pack, fid);
2146 luch = lu_object_find(env, ludev->ld_site, fid);
2147 if (!IS_ERR(luch)) {
2148 if (lu_object_exists(luch)) {
2149 struct osd_object *child;
2151 child = osd_obj(lu_object_locate(luch->lo_header,
2154 result = osd_add_rec(info, osd_obj2dev(obj),
2156 child->oo_inode, name);
2158 CERROR("No osd slice.\n");
2161 LASSERT(osd_invariant(obj));
2162 LASSERT(osd_invariant(child));
2167 lu_object_put(env, luch);
2169 result = PTR_ERR(luch);
2170 LASSERT(osd_invariant(obj));
2174 static struct dt_index_operations osd_index_compat_ops = {
2175 .dio_lookup = osd_index_compat_lookup,
2176 .dio_insert = osd_index_compat_insert,
2177 .dio_delete = osd_index_compat_delete
2180 /* type constructor/destructor: osd_type_init, osd_type_fini */
2181 LU_TYPE_INIT_FINI(osd, &osd_key);
2183 static struct lu_context_key osd_key = {
2184 .lct_tags = LCT_DT_THREAD | LCT_MD_THREAD,
2185 .lct_init = osd_key_init,
2186 .lct_fini = osd_key_fini,
2187 .lct_exit = osd_key_exit
2190 static void *osd_key_init(const struct lu_context *ctx,
2191 struct lu_context_key *key)
2193 struct osd_thread_info *info;
2195 OBD_ALLOC_PTR(info);
2197 info->oti_env = container_of(ctx, struct lu_env, le_ctx);
2199 info = ERR_PTR(-ENOMEM);
2203 /* context key destructor: osd_key_fini */
2204 LU_KEY_FINI(osd, struct osd_thread_info);
2206 static void osd_key_exit(const struct lu_context *ctx,
2207 struct lu_context_key *key, void *data)
2210 struct osd_thread_info *info = data;
2212 LASSERT(info->oti_r_locks == 0);
2213 LASSERT(info->oti_w_locks == 0);
2214 LASSERT(info->oti_txns == 0);
2218 static int osd_device_init(const struct lu_env *env, struct lu_device *d,
2219 const char *name, struct lu_device *next)
2222 /* context for commit hooks */
2223 rc = lu_context_init(&osd_dev(d)->od_env_for_commit.le_ctx,
2226 rc = osd_procfs_init(osd_dev(d), name);
2230 static int osd_shutdown(const struct lu_env *env, struct osd_device *o)
2232 struct osd_thread_info *info = osd_oti_get(env);
2234 if (o->od_obj_area != NULL) {
2235 dput(o->od_obj_area);
2236 o->od_obj_area = NULL;
2238 osd_oi_fini(info, &o->od_oi);
2243 static int osd_mount(const struct lu_env *env,
2244 struct osd_device *o, struct lustre_cfg *cfg)
2246 struct lustre_mount_info *lmi;
2247 const char *dev = lustre_cfg_string(cfg, 0);
2248 struct osd_thread_info *info = osd_oti_get(env);
2253 if (o->od_mount != NULL) {
2254 CERROR("Already mounted (%s)\n", dev);
2259 lmi = server_get_mount(dev);
2261 CERROR("Cannot get mount info for %s!\n", dev);
2265 LASSERT(lmi != NULL);
2266 /* save lustre_mount_info in dt_device */
2269 result = osd_oi_init(info, &o->od_oi, &o->od_dt_dev);
2273 d = simple_mkdir(osd_sb(o)->s_root, "*OBJ-TEMP*", 0777, 1);
2277 result = PTR_ERR(d);
2280 osd_shutdown(env, o);
2284 static struct lu_device *osd_device_fini(const struct lu_env *env,
2285 struct lu_device *d)
2290 shrink_dcache_sb(osd_sb(osd_dev(d)));
2291 osd_sync(env, lu2dt_dev(d));
2293 rc = osd_procfs_fini(osd_dev(d));
2295 CERROR("proc fini error %d \n", rc);
2296 RETURN (ERR_PTR(rc));
2299 if (osd_dev(d)->od_mount)
2300 server_put_mount(osd_dev(d)->od_mount->lmi_name,
2301 osd_dev(d)->od_mount->lmi_mnt);
2302 osd_dev(d)->od_mount = NULL;
2304 lu_context_fini(&osd_dev(d)->od_env_for_commit.le_ctx);
2308 static struct lu_device *osd_device_alloc(const struct lu_env *env,
2309 struct lu_device_type *t,
2310 struct lustre_cfg *cfg)
2312 struct lu_device *l;
2313 struct osd_device *o;
2319 result = dt_device_init(&o->od_dt_dev, t);
2322 l->ld_ops = &osd_lu_ops;
2323 o->od_dt_dev.dd_ops = &osd_dt_ops;
2324 spin_lock_init(&o->od_osfs_lock);
2325 o->od_osfs_age = cfs_time_shift_64(-1000);
2326 o->od_capa_hash = init_capa_hash();
2327 if (o->od_capa_hash == NULL)
2328 l = ERR_PTR(-ENOMEM);
2330 l = ERR_PTR(result);
2332 l = ERR_PTR(-ENOMEM);
2336 static struct lu_device *osd_device_free(const struct lu_env *env,
2337 struct lu_device *d)
2339 struct osd_device *o = osd_dev(d);
2342 cleanup_capa_hash(o->od_capa_hash);
2343 dt_device_fini(&o->od_dt_dev);
2348 static int osd_process_config(const struct lu_env *env,
2349 struct lu_device *d, struct lustre_cfg *cfg)
2351 struct osd_device *o = osd_dev(d);
2355 switch(cfg->lcfg_command) {
2357 err = osd_mount(env, o, cfg);
2360 err = osd_shutdown(env, o);
2368 extern void ldiskfs_orphan_cleanup (struct super_block * sb,
2369 struct ldiskfs_super_block * es);
2371 static int osd_recovery_complete(const struct lu_env *env,
2372 struct lu_device *d)
2374 struct osd_device *o = osd_dev(d);
2376 /* TODO: orphans handling */
2377 ldiskfs_orphan_cleanup(osd_sb(o), LDISKFS_SB(osd_sb(o))->s_es);
2381 static struct inode *osd_iget(struct osd_thread_info *info,
2382 struct osd_device *dev,
2383 const struct osd_inode_id *id)
2385 struct inode *inode;
2387 inode = iget(osd_sb(dev), id->oii_ino);
2388 if (inode == NULL) {
2389 CERROR("no inode\n");
2390 inode = ERR_PTR(-EACCES);
2391 } else if (is_bad_inode(inode)) {
2392 CERROR("bad inode\n");
2394 inode = ERR_PTR(-ENOENT);
2395 } else if (inode->i_generation != id->oii_gen) {
2396 CERROR("stale inode\n");
2398 inode = ERR_PTR(-ESTALE);
2405 static int osd_fid_lookup(const struct lu_env *env,
2406 struct osd_object *obj, const struct lu_fid *fid)
2408 struct osd_thread_info *info;
2409 struct lu_device *ldev = obj->oo_dt.do_lu.lo_dev;
2410 struct osd_device *dev;
2411 struct osd_inode_id *id;
2413 struct inode *inode;
2416 LASSERT(osd_invariant(obj));
2417 LASSERT(obj->oo_inode == NULL);
2418 LASSERT(fid_is_sane(fid));
2420 * This assertion checks that osd layer sees only local
2421 * fids. Unfortunately it is somewhat expensive (does a
2422 * cache-lookup). Disabling it for production/acceptance-testing.
2424 LASSERT(1 || fid_is_local(ldev->ld_site, fid));
2428 info = osd_oti_get(env);
2429 dev = osd_dev(ldev);
2433 if (OBD_FAIL_CHECK(OBD_FAIL_OST_ENOENT))
2436 result = osd_oi_lookup(info, oi, fid, id);
2438 inode = osd_iget(info, dev, id);
2439 if (!IS_ERR(inode)) {
2440 obj->oo_inode = inode;
2441 LASSERT(obj->oo_inode->i_sb == osd_sb(dev));
2445 * If fid wasn't found in oi, inode-less object is
2446 * created, for which lu_object_exists() returns
2447 * false. This is used in a (frequent) case when
2448 * objects are created as locking anchors or
2449 * place holders for objects yet to be created.
2451 result = PTR_ERR(inode);
2452 } else if (result == -ENOENT)
2454 LASSERT(osd_invariant(obj));
2458 static void osd_inode_getattr(const struct lu_env *env,
2459 struct inode *inode, struct lu_attr *attr)
2461 attr->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE |
2462 LA_SIZE | LA_BLOCKS | LA_UID | LA_GID |
2463 LA_FLAGS | LA_NLINK | LA_RDEV | LA_BLKSIZE;
2465 attr->la_atime = LTIME_S(inode->i_atime);
2466 attr->la_mtime = LTIME_S(inode->i_mtime);
2467 attr->la_ctime = LTIME_S(inode->i_ctime);
2468 attr->la_mode = inode->i_mode;
2469 attr->la_size = i_size_read(inode);
2470 attr->la_blocks = inode->i_blocks;
2471 attr->la_uid = inode->i_uid;
2472 attr->la_gid = inode->i_gid;
2473 attr->la_flags = LDISKFS_I(inode)->i_flags;
2474 attr->la_nlink = inode->i_nlink;
2475 attr->la_rdev = inode->i_rdev;
2476 attr->la_blksize = ll_inode_blksize(inode);
2477 attr->la_blkbits = inode->i_blkbits;
2484 static int lu_device_is_osd(const struct lu_device *d)
2486 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &osd_lu_ops);
2489 static struct osd_object *osd_obj(const struct lu_object *o)
2491 LASSERT(lu_device_is_osd(o->lo_dev));
2492 return container_of0(o, struct osd_object, oo_dt.do_lu);
2495 static struct osd_device *osd_dt_dev(const struct dt_device *d)
2497 LASSERT(lu_device_is_osd(&d->dd_lu_dev));
2498 return container_of0(d, struct osd_device, od_dt_dev);
2501 static struct osd_device *osd_dev(const struct lu_device *d)
2503 LASSERT(lu_device_is_osd(d));
2504 return osd_dt_dev(container_of0(d, struct dt_device, dd_lu_dev));
2507 static struct osd_object *osd_dt_obj(const struct dt_object *d)
2509 return osd_obj(&d->do_lu);
2512 static struct osd_device *osd_obj2dev(const struct osd_object *o)
2514 return osd_dev(o->oo_dt.do_lu.lo_dev);
2517 static struct lu_device *osd2lu_dev(struct osd_device *osd)
2519 return &osd->od_dt_dev.dd_lu_dev;
2522 static struct super_block *osd_sb(const struct osd_device *dev)
2524 return dev->od_mount->lmi_mnt->mnt_sb;
2527 static journal_t *osd_journal(const struct osd_device *dev)
2529 return LDISKFS_SB(osd_sb(dev))->s_journal;
2532 static int osd_has_index(const struct osd_object *obj)
2534 return obj->oo_dt.do_index_ops != NULL;
2537 static int osd_object_invariant(const struct lu_object *l)
2539 return osd_invariant(osd_obj(l));
2542 static struct lu_object_operations osd_lu_obj_ops = {
2543 .loo_object_init = osd_object_init,
2544 .loo_object_delete = osd_object_delete,
2545 .loo_object_release = osd_object_release,
2546 .loo_object_free = osd_object_free,
2547 .loo_object_print = osd_object_print,
2548 .loo_object_invariant = osd_object_invariant
2551 static struct lu_device_operations osd_lu_ops = {
2552 .ldo_object_alloc = osd_object_alloc,
2553 .ldo_process_config = osd_process_config,
2554 .ldo_recovery_complete = osd_recovery_complete
2557 static struct lu_device_type_operations osd_device_type_ops = {
2558 .ldto_init = osd_type_init,
2559 .ldto_fini = osd_type_fini,
2561 .ldto_device_alloc = osd_device_alloc,
2562 .ldto_device_free = osd_device_free,
2564 .ldto_device_init = osd_device_init,
2565 .ldto_device_fini = osd_device_fini
2568 static struct lu_device_type osd_device_type = {
2569 .ldt_tags = LU_DEVICE_DT,
2570 .ldt_name = LUSTRE_OSD_NAME,
2571 .ldt_ops = &osd_device_type_ops,
2572 .ldt_ctx_tags = LCT_MD_THREAD|LCT_DT_THREAD
2576 * lprocfs legacy support.
2578 static struct obd_ops osd_obd_device_ops = {
2579 .o_owner = THIS_MODULE
2582 static int __init osd_mod_init(void)
2584 struct lprocfs_static_vars lvars;
2586 lprocfs_osd_init_vars(&lvars);
2587 return class_register_type(&osd_obd_device_ops, NULL, lvars.module_vars,
2588 LUSTRE_OSD_NAME, &osd_device_type);
2591 static void __exit osd_mod_exit(void)
2593 class_unregister_type(LUSTRE_OSD_NAME);
2596 MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
2597 MODULE_DESCRIPTION("Lustre Object Storage Device ("LUSTRE_OSD_NAME")");
2598 MODULE_LICENSE("GPL");
2600 cfs_module(osd, "0.0.2", osd_mod_init, osd_mod_exit);