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 /* class_register_type(), class_unregister_type(), class_get_type() */
66 #include <obd_class.h>
67 #include <lustre_disk.h>
70 #include <lustre_fid.h>
71 #include <linux/lustre_iam.h>
73 #include "osd_internal.h"
76 struct osd_directory {
77 struct iam_container od_container;
78 struct iam_descr od_descr;
79 struct semaphore od_sem;
83 struct dt_object oo_dt;
85 * Inode for file system object represented by this osd_object. This
86 * inode is pinned for the whole duration of lu_object life.
88 * Not modified concurrently (either setup early during object
89 * creation, or assigned by osd_object_create() under write lock).
91 struct inode *oo_inode;
92 struct rw_semaphore oo_sem;
93 struct osd_directory *oo_dir;
94 /* protects inode attributes. */
97 const struct lu_env *oo_owner;
106 struct dt_device od_dt_dev;
107 /* information about underlying file system */
108 struct lustre_mount_info *od_mount;
112 * XXX temporary stuff for object index: directory where every object
113 * is named by its fid.
115 struct dentry *od_obj_area;
117 /* Environment for transaction commit callback.
118 * Currently, OSD is based on ext3/JBD. Transaction commit in ext3/JBD
119 * is serialized, that is there is no more than one transaction commit
120 * at a time (JBD journal_commit_transaction() is serialized).
121 * This means that it's enough to have _one_ lu_context.
123 struct lu_env od_env_for_commit;
128 unsigned int od_fl_capa:1;
129 unsigned long od_capa_timeout;
131 struct lustre_capa_key *od_capa_keys;
132 struct hlist_head *od_capa_hash;
135 * statfs optimization: we cache a bit.
137 cfs_time_t od_osfs_age;
138 struct kstatfs od_kstatfs;
139 spinlock_t od_osfs_lock;
142 static int osd_root_get (const struct lu_env *env,
143 struct dt_device *dev, struct lu_fid *f);
144 static int osd_statfs (const struct lu_env *env,
145 struct dt_device *dev, struct kstatfs *sfs);
147 static int lu_device_is_osd (const struct lu_device *d);
148 static void osd_mod_exit (void) __exit;
149 static int osd_mod_init (void) __init;
150 static int osd_type_init (struct lu_device_type *t);
151 static void osd_type_fini (struct lu_device_type *t);
152 static int osd_object_init (const struct lu_env *env,
153 struct lu_object *l);
154 static void osd_object_release(const struct lu_env *env,
155 struct lu_object *l);
156 static int osd_object_print (const struct lu_env *env, void *cookie,
157 lu_printer_t p, const struct lu_object *o);
158 static void osd_device_free (const struct lu_env *env,
159 struct lu_device *m);
160 static void *osd_key_init (const struct lu_context *ctx,
161 struct lu_context_key *key);
162 static void osd_key_fini (const struct lu_context *ctx,
163 struct lu_context_key *key, void *data);
164 static void osd_key_exit (const struct lu_context *ctx,
165 struct lu_context_key *key, void *data);
166 static int osd_has_index (const struct osd_object *obj);
167 static void osd_object_init0 (struct osd_object *obj);
168 static int osd_device_init (const struct lu_env *env,
169 struct lu_device *d, const char *,
171 static int osd_fid_lookup (const struct lu_env *env,
172 struct osd_object *obj,
173 const struct lu_fid *fid);
174 static void osd_inode_getattr (const struct lu_env *env,
175 struct inode *inode, struct lu_attr *attr);
176 static void osd_inode_setattr (const struct lu_env *env,
177 struct inode *inode, const struct lu_attr *attr);
178 static int osd_param_is_sane (const struct osd_device *dev,
179 const struct txn_param *param);
180 static int osd_index_lookup (const struct lu_env *env,
181 struct dt_object *dt,
182 struct dt_rec *rec, const struct dt_key *key,
183 struct lustre_capa *capa);
184 static int osd_index_insert (const struct lu_env *env,
185 struct dt_object *dt,
186 const struct dt_rec *rec,
187 const struct dt_key *key,
188 struct thandle *handle,
189 struct lustre_capa *capa);
190 static int osd_index_delete (const struct lu_env *env,
191 struct dt_object *dt, const struct dt_key *key,
192 struct thandle *handle,
193 struct lustre_capa *capa);
194 static int osd_index_probe (const struct lu_env *env,
195 struct osd_object *o,
196 const struct dt_index_features *feat);
197 static int osd_index_try (const struct lu_env *env,
198 struct dt_object *dt,
199 const struct dt_index_features *feat);
200 static void osd_index_fini (struct osd_object *o);
202 static void osd_it_fini (const struct lu_env *env, struct dt_it *di);
203 static int osd_it_get (const struct lu_env *env,
204 struct dt_it *di, const struct dt_key *key);
205 static void osd_it_put (const struct lu_env *env, struct dt_it *di);
206 static int osd_it_next (const struct lu_env *env, struct dt_it *di);
207 static int osd_it_del (const struct lu_env *env, struct dt_it *di,
209 static int osd_it_key_size (const struct lu_env *env,
210 const struct dt_it *di);
211 static void osd_conf_get (const struct lu_env *env,
212 const struct dt_device *dev,
213 struct dt_device_param *param);
214 static void osd_trans_stop (const struct lu_env *env,
216 static int osd_object_is_root(const struct osd_object *obj);
218 static struct osd_object *osd_obj (const struct lu_object *o);
219 static struct osd_device *osd_dev (const struct lu_device *d);
220 static struct osd_device *osd_dt_dev (const struct dt_device *d);
221 static struct osd_object *osd_dt_obj (const struct dt_object *d);
222 static struct osd_device *osd_obj2dev (const struct osd_object *o);
223 static struct lu_device *osd2lu_dev (struct osd_device *osd);
224 static struct lu_device *osd_device_fini (const struct lu_env *env,
225 struct lu_device *d);
226 static struct lu_device *osd_device_alloc (const struct lu_env *env,
227 struct lu_device_type *t,
228 struct lustre_cfg *cfg);
229 static struct lu_object *osd_object_alloc (const struct lu_env *env,
230 const struct lu_object_header *hdr,
231 struct lu_device *d);
232 static struct inode *osd_iget (struct osd_thread_info *info,
233 struct osd_device *dev,
234 const struct osd_inode_id *id);
235 static struct super_block *osd_sb (const struct osd_device *dev);
236 static struct dt_it *osd_it_init (const struct lu_env *env,
237 struct dt_object *dt, int wable,
238 struct lustre_capa *capa);
239 static struct dt_key *osd_it_key (const struct lu_env *env,
240 const struct dt_it *di);
241 static struct dt_rec *osd_it_rec (const struct lu_env *env,
242 const struct dt_it *di);
243 static struct timespec *osd_inode_time (const struct lu_env *env,
246 static struct thandle *osd_trans_start (const struct lu_env *env,
248 struct txn_param *p);
249 static journal_t *osd_journal (const struct osd_device *dev);
251 static struct lu_device_type_operations osd_device_type_ops;
252 static struct lu_device_type osd_device_type;
253 static struct lu_object_operations osd_lu_obj_ops;
254 static struct obd_ops osd_obd_device_ops;
255 static struct lprocfs_vars lprocfs_osd_module_vars[];
256 static struct lprocfs_vars lprocfs_osd_obd_vars[];
257 static struct lu_device_operations osd_lu_ops;
258 static struct lu_context_key osd_key;
259 static struct dt_object_operations osd_obj_ops;
260 static struct dt_body_operations osd_body_ops;
261 static struct dt_index_operations osd_index_ops;
262 static struct dt_index_operations osd_index_compat_ops;
265 struct thandle ot_super;
267 struct journal_callback ot_jcb;
271 * Invariants, assertions.
275 * XXX: do not enable this, until invariant checking code is made thread safe
276 * in the face of pdirops locking.
278 #define OSD_INVARIANT_CHECKS (0)
280 #if OSD_INVARIANT_CHECKS
281 static int osd_invariant(const struct osd_object *obj)
285 ergo(obj->oo_inode != NULL,
286 obj->oo_inode->i_sb == osd_sb(osd_obj2dev(obj)) &&
287 atomic_read(&obj->oo_inode->i_count) > 0) &&
288 ergo(obj->oo_dir != NULL &&
289 obj->oo_dir->od_conationer.ic_object != NULL,
290 obj->oo_dir->od_conationer.ic_object == obj->oo_inode);
293 #define osd_invariant(obj) (1)
296 static inline struct osd_thread_info *osd_oti_get(const struct lu_env *env)
298 return lu_context_key_get(&env->le_ctx, &osd_key);
303 * Concurrency: doesn't matter
305 static int osd_read_locked(const struct lu_env *env, struct osd_object *o)
307 return osd_oti_get(env)->oti_r_locks > 0;
311 * Concurrency: doesn't matter
313 static int osd_write_locked(const struct lu_env *env, struct osd_object *o)
315 struct osd_thread_info *oti = osd_oti_get(env);
316 return oti->oti_w_locks > 0 && o->oo_owner == env;
319 #define OSD_COUNTERS_DO(exp) exp
323 #define osd_read_locked(env, o) (1)
324 #define osd_write_locked(env, o) (1)
325 #define OSD_COUNTERS_DO(exp) ((void)0)
329 * Concurrency: doesn't access mutable data
331 static int osd_root_get(const struct lu_env *env,
332 struct dt_device *dev, struct lu_fid *f)
336 inode = osd_sb(osd_dt_dev(dev))->s_root->d_inode;
337 lu_igif_build(f, inode->i_ino, inode->i_generation);
342 * OSD object methods.
346 * Concurrency: no concurrent access is possible that early in object
349 static struct lu_object *osd_object_alloc(const struct lu_env *env,
350 const struct lu_object_header *hdr,
353 struct osd_object *mo;
359 l = &mo->oo_dt.do_lu;
360 dt_object_init(&mo->oo_dt, NULL, d);
361 mo->oo_dt.do_ops = &osd_obj_ops;
362 l->lo_ops = &osd_lu_obj_ops;
363 init_rwsem(&mo->oo_sem);
364 spin_lock_init(&mo->oo_guard);
371 * Concurrency: shouldn't matter.
373 static void osd_object_init0(struct osd_object *obj)
375 LASSERT(obj->oo_inode != NULL);
376 obj->oo_dt.do_body_ops = &osd_body_ops;
377 obj->oo_dt.do_lu.lo_header->loh_attr |=
378 (LOHA_EXISTS | (obj->oo_inode->i_mode & S_IFMT));
382 * Concurrency: no concurrent access is possible that early in object
385 static int osd_object_init(const struct lu_env *env, struct lu_object *l)
387 struct osd_object *obj = osd_obj(l);
390 LASSERT(osd_invariant(obj));
392 result = osd_fid_lookup(env, obj, lu_object_fid(l));
394 if (obj->oo_inode != NULL)
395 osd_object_init0(obj);
397 LASSERT(osd_invariant(obj));
402 * Concurrency: no concurrent access is possible that late in object
405 static void osd_object_free(const struct lu_env *env, struct lu_object *l)
407 struct osd_object *obj = osd_obj(l);
409 LASSERT(osd_invariant(obj));
411 dt_object_fini(&obj->oo_dt);
415 static struct iam_path_descr *osd_ipd_get(const struct lu_env *env,
416 const struct iam_container *bag)
418 return bag->ic_descr->id_ops->id_ipd_alloc(bag,
419 osd_oti_get(env)->oti_ipd);
422 static void osd_ipd_put(const struct lu_env *env,
423 const struct iam_container *bag,
424 struct iam_path_descr *ipd)
426 bag->ic_descr->id_ops->id_ipd_free(ipd);
430 * Concurrency: no concurrent access is possible that late in object
433 static void osd_index_fini(struct osd_object *o)
435 struct iam_container *bag;
437 if (o->oo_dir != NULL) {
438 bag = &o->oo_dir->od_container;
439 if (o->oo_inode != NULL) {
440 if (bag->ic_object == o->oo_inode)
441 iam_container_fini(bag);
443 OBD_FREE_PTR(o->oo_dir);
449 * Concurrency: no concurrent access is possible that late in object
450 * life-cycle (for all existing callers, that is. New callers have to provide
451 * their own locking.)
453 static int osd_inode_unlinked(const struct inode *inode)
455 return inode->i_nlink == 0;
459 OSD_TXN_OI_DELETE_CREDITS = 20,
460 OSD_TXN_INODE_DELETE_CREDITS = 20
464 * Concurrency: no concurrent access is possible that late in object
467 static int osd_inode_remove(const struct lu_env *env, struct osd_object *obj)
469 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
470 struct osd_device *osd = osd_obj2dev(obj);
471 struct osd_thread_info *oti = osd_oti_get(env);
472 struct txn_param *prm = &oti->oti_txn;
476 txn_param_init(prm, OSD_TXN_OI_DELETE_CREDITS +
477 OSD_TXN_INODE_DELETE_CREDITS);
478 th = osd_trans_start(env, &osd->od_dt_dev, prm);
480 result = osd_oi_delete(oti, &osd->od_oi, fid, th);
481 osd_trans_stop(env, th);
483 result = PTR_ERR(th);
488 * Called just before object is freed. Releases all resources except for
489 * object itself (that is released by osd_object_free()).
491 * Concurrency: no concurrent access is possible that late in object
494 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
496 struct osd_object *obj = osd_obj(l);
497 struct inode *inode = obj->oo_inode;
499 LASSERT(osd_invariant(obj));
502 * If object is unlinked remove fid->ino mapping from object index.
504 * File body will be deleted by iput().
511 if (osd_inode_unlinked(inode)) {
512 result = osd_inode_remove(env, obj);
514 LU_OBJECT_DEBUG(D_ERROR, env, l,
515 "Failed to cleanup: %d\n",
519 obj->oo_inode = NULL;
524 * Concurrency: ->loo_object_release() is called under site spin-lock.
526 static void osd_object_release(const struct lu_env *env,
529 struct osd_object *o = osd_obj(l);
531 LASSERT(!lu_object_is_dying(l->lo_header));
532 if (o->oo_inode != NULL && osd_inode_unlinked(o->oo_inode))
533 set_bit(LU_OBJECT_HEARD_BANSHEE, &l->lo_header->loh_flags);
537 * Concurrency: shouldn't matter.
539 static int osd_object_print(const struct lu_env *env, void *cookie,
540 lu_printer_t p, const struct lu_object *l)
542 struct osd_object *o = osd_obj(l);
545 if (o->oo_dir != NULL)
546 d = o->oo_dir->od_container.ic_descr;
549 return (*p)(env, cookie, LUSTRE_OSD_NAME"-object@%p(i:%p:%lu/%u)[%s]",
551 o->oo_inode ? o->oo_inode->i_ino : 0UL,
552 o->oo_inode ? o->oo_inode->i_generation : 0,
553 d ? d->id_ops->id_name : "plain");
557 * Concurrency: shouldn't matter.
559 static int osd_statfs(const struct lu_env *env,
560 struct dt_device *d, struct kstatfs *sfs)
562 struct osd_device *osd = osd_dt_dev(d);
563 struct super_block *sb = osd_sb(osd);
566 spin_lock(&osd->od_osfs_lock);
568 if (cfs_time_before_64(osd->od_osfs_age, cfs_time_shift_64(-1))) {
569 result = sb->s_op->statfs(sb, &osd->od_kstatfs);
570 if (likely(result == 0)) /* N.B. statfs can't really fail */
571 osd->od_osfs_age = cfs_time_current_64();
574 if (likely(result == 0))
575 *sfs = osd->od_kstatfs;
576 spin_unlock(&osd->od_osfs_lock);
582 * Concurrency: doesn't access mutable data.
584 static void osd_conf_get(const struct lu_env *env,
585 const struct dt_device *dev,
586 struct dt_device_param *param)
589 * XXX should be taken from not-yet-existing fs abstraction layer.
591 param->ddp_max_name_len = LDISKFS_NAME_LEN;
592 param->ddp_max_nlink = LDISKFS_LINK_MAX;
593 param->ddp_block_shift = osd_sb(osd_dt_dev(dev))->s_blocksize_bits;
601 * Concurrency: doesn't access mutable data.
603 static int osd_param_is_sane(const struct osd_device *dev,
604 const struct txn_param *param)
606 return param->tp_credits <= osd_journal(dev)->j_max_transaction_buffers;
610 * Concurrency: shouldn't matter.
612 static void osd_trans_commit_cb(struct journal_callback *jcb, int error)
614 struct osd_thandle *oh = container_of0(jcb, struct osd_thandle, ot_jcb);
615 struct thandle *th = &oh->ot_super;
616 struct dt_device *dev = th->th_dev;
618 LASSERT(dev != NULL);
619 LASSERT(oh->ot_handle == NULL);
622 CERROR("transaction @0x%p commit error: %d\n", th, error);
625 * This od_env_for_commit is only for commit usage. see
628 dt_txn_hook_commit(&osd_dt_dev(dev)->od_env_for_commit, th);
631 lu_device_put(&dev->dd_lu_dev);
634 lu_context_exit(&th->th_ctx);
635 lu_context_fini(&th->th_ctx);
640 * Concurrency: shouldn't matter.
642 static struct thandle *osd_trans_start(const struct lu_env *env,
646 struct osd_device *dev = osd_dt_dev(d);
648 struct osd_thandle *oh;
654 hook_res = dt_txn_hook_start(env, d, p);
656 RETURN(ERR_PTR(hook_res));
658 if (osd_param_is_sane(dev, p)) {
659 OBD_ALLOC_GFP(oh, sizeof *oh, CFS_ALLOC_IO);
662 * XXX temporary stuff. Some abstraction layer should
666 jh = journal_start(osd_journal(dev), p->tp_credits);
672 jh->h_sync = p->tp_sync;
673 lu_device_get(&d->dd_lu_dev);
674 /* add commit callback */
675 lu_context_init(&th->th_ctx, LCT_TX_HANDLE);
676 lu_context_enter(&th->th_ctx);
677 journal_callback_set(jh, osd_trans_commit_cb,
678 (struct journal_callback *)&oh->ot_jcb);
681 struct osd_thread_info *oti =
684 LASSERT(oti->oti_txns == 0);
685 LASSERT(oti->oti_r_locks == 0);
686 LASSERT(oti->oti_w_locks == 0);
695 th = ERR_PTR(-ENOMEM);
697 CERROR("Invalid transaction parameters\n");
698 th = ERR_PTR(-EINVAL);
705 * Concurrency: shouldn't matter.
707 static void osd_trans_stop(const struct lu_env *env, struct thandle *th)
710 struct osd_thandle *oh;
714 oh = container_of0(th, struct osd_thandle, ot_super);
715 if (oh->ot_handle != NULL) {
716 handle_t *hdl = oh->ot_handle;
718 * XXX temporary stuff. Some abstraction layer should be used.
720 result = dt_txn_hook_stop(env, th);
722 CERROR("Failure in transaction hook: %d\n", result);
725 oh->ot_handle = NULL;
726 result = journal_stop(hdl);
728 CERROR("Failure to stop transaction: %d\n", result);
732 struct osd_thread_info *oti = osd_oti_get(env);
734 LASSERT(oti->oti_txns == 1);
735 LASSERT(oti->oti_r_locks == 0);
736 LASSERT(oti->oti_w_locks == 0);
745 * Concurrency: shouldn't matter.
747 static int osd_sync(const struct lu_env *env, struct dt_device *d)
749 CDEBUG(D_HA, "syncing OSD %s\n", LUSTRE_OSD_NAME);
750 return ldiskfs_force_commit(osd_sb(osd_dt_dev(d)));
754 * Concurrency: shouldn't matter.
756 lvfs_sbdev_type fsfilt_ldiskfs_journal_sbdev(struct super_block *);
758 static void osd_ro(const struct lu_env *env, struct dt_device *d)
762 CERROR("*** setting device %s read-only ***\n", LUSTRE_OSD_NAME);
764 __lvfs_set_rdonly(lvfs_sbdev(osd_sb(osd_dt_dev(d))),
765 fsfilt_ldiskfs_journal_sbdev(osd_sb(osd_dt_dev(d))));
770 * Concurrency: serialization provided by callers.
772 static int osd_init_capa_ctxt(const struct lu_env *env, struct dt_device *d,
773 int mode, unsigned long timeout, __u32 alg,
774 struct lustre_capa_key *keys)
776 struct osd_device *dev = osd_dt_dev(d);
779 dev->od_fl_capa = mode;
780 dev->od_capa_timeout = timeout;
781 dev->od_capa_alg = alg;
782 dev->od_capa_keys = keys;
786 /* Note: we did not count into QUOTA here, If we mount with --data_journal
788 static const int osd_dto_credits[DTO_NR] = {
790 * Insert/Delete. IAM EXT3_INDEX_EXTRA_TRANS_BLOCKS(8) +
791 * EXT3_SINGLEDATA_TRANS_BLOCKS 8 XXX Note: maybe iam need more,since
792 * iam have more level than Ext3 htree
794 [DTO_INDEX_INSERT] = 16,
795 [DTO_INDEX_DELETE] = 16,
796 [DTO_IDNEX_UPDATE] = 16,
798 * Create a object. Same as create object in Ext3 filesystem, but did
799 * not count QUOTA i EXT3_DATA_TRANS_BLOCKS(12) +
800 * INDEX_EXTRA_BLOCKS(8) + 3(inode bits,groups, GDT)
802 [DTO_OBJECT_CREATE] = 23,
803 [DTO_OBJECT_DELETE] = 23,
805 * Attr set credits 3 inode, group, GDT
809 * XATTR_SET. SAME AS XATTR of EXT3 EXT3_DATA_TRANS_BLOCKS XXX Note:
810 * in original MDS implmentation EXT3_INDEX_EXTRA_TRANS_BLOCKS are
811 * also counted in. Do not know why?
813 [DTO_XATTR_SET] = 16,
817 static int osd_credit_get(const struct lu_env *env, struct dt_device *d,
820 LASSERT(0 <= op && op < ARRAY_SIZE(osd_dto_credits));
821 return osd_dto_credits[op];
824 static struct dt_device_operations osd_dt_ops = {
825 .dt_root_get = osd_root_get,
826 .dt_statfs = osd_statfs,
827 .dt_trans_start = osd_trans_start,
828 .dt_trans_stop = osd_trans_stop,
829 .dt_conf_get = osd_conf_get,
832 .dt_credit_get = osd_credit_get,
833 .dt_init_capa_ctxt = osd_init_capa_ctxt,
836 static void osd_object_read_lock(const struct lu_env *env,
837 struct dt_object *dt)
839 struct osd_object *obj = osd_dt_obj(dt);
841 LASSERT(osd_invariant(obj));
843 OSD_COUNTERS_DO(LASSERT(obj->oo_owner != env));
844 down_read(&obj->oo_sem);
847 struct osd_thread_info *oti = osd_oti_get(env);
849 LASSERT(obj->oo_owner == NULL);
855 static void osd_object_write_lock(const struct lu_env *env,
856 struct dt_object *dt)
858 struct osd_object *obj = osd_dt_obj(dt);
860 LASSERT(osd_invariant(obj));
862 OSD_COUNTERS_DO(LASSERT(obj->oo_owner != env));
863 down_write(&obj->oo_sem);
866 struct osd_thread_info *oti = osd_oti_get(env);
868 LASSERT(obj->oo_owner == NULL);
875 static void osd_object_read_unlock(const struct lu_env *env,
876 struct dt_object *dt)
878 struct osd_object *obj = osd_dt_obj(dt);
880 LASSERT(osd_invariant(obj));
883 struct osd_thread_info *oti = osd_oti_get(env);
885 LASSERT(oti->oti_r_locks > 0);
889 up_read(&obj->oo_sem);
892 static void osd_object_write_unlock(const struct lu_env *env,
893 struct dt_object *dt)
895 struct osd_object *obj = osd_dt_obj(dt);
897 LASSERT(osd_invariant(obj));
900 struct osd_thread_info *oti = osd_oti_get(env);
902 LASSERT(obj->oo_owner == env);
903 LASSERT(oti->oti_w_locks > 0);
905 obj->oo_owner = NULL;
908 up_write(&obj->oo_sem);
911 static int capa_is_sane(const struct lu_env *env,
912 struct osd_device *dev,
913 struct lustre_capa *capa,
914 struct lustre_capa_key *keys)
916 struct osd_thread_info *oti = osd_oti_get(env);
921 oc = capa_lookup(dev->od_capa_hash, capa, 0);
923 if (capa_is_expired(oc)) {
924 DEBUG_CAPA(D_ERROR, capa, "expired");
931 spin_lock(&capa_lock);
932 for (i = 0; i < 2; i++) {
933 if (keys[i].lk_keyid == capa->lc_keyid) {
934 oti->oti_capa_key = keys[i];
938 spin_unlock(&capa_lock);
941 DEBUG_CAPA(D_ERROR, capa, "no matched capa key");
945 rc = capa_hmac(oti->oti_capa.lc_hmac, capa, oti->oti_capa_key.lk_key);
948 if (memcmp(oti->oti_capa.lc_hmac, capa->lc_hmac, sizeof(capa->lc_hmac)))
950 DEBUG_CAPA(D_ERROR, capa, "HMAC mismatch");
954 oc = capa_add(dev->od_capa_hash, capa);
960 static int osd_object_auth(const struct lu_env *env, struct dt_object *dt,
961 struct lustre_capa *capa, __u64 opc)
963 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
964 struct osd_device *dev = osd_dev(dt->do_lu.lo_dev);
967 if (!dev->od_fl_capa)
970 if (capa == BYPASS_CAPA)
974 CERROR("no capability is provided for fid "DFID"\n", PFID(fid));
978 if (!lu_fid_eq(fid, &capa->lc_fid)) {
979 DEBUG_CAPA(D_ERROR, capa, "fid "DFID" mismatch with",
984 if (!capa_opc_supported(capa, opc)) {
985 DEBUG_CAPA(D_ERROR, capa, "opc "LPX64" not supported by", opc);
989 if ((rc = capa_is_sane(env, dev, capa, dev->od_capa_keys))) {
990 DEBUG_CAPA(D_ERROR, capa, "insane (rc %d)", rc);
997 static int osd_attr_get(const struct lu_env *env,
998 struct dt_object *dt,
999 struct lu_attr *attr,
1000 struct lustre_capa *capa)
1002 struct osd_object *obj = osd_dt_obj(dt);
1004 LASSERT(dt_object_exists(dt));
1005 LASSERT(osd_invariant(obj));
1007 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
1010 spin_lock(&obj->oo_guard);
1011 osd_inode_getattr(env, obj->oo_inode, attr);
1012 spin_unlock(&obj->oo_guard);
1016 static int osd_attr_set(const struct lu_env *env,
1017 struct dt_object *dt,
1018 const struct lu_attr *attr,
1019 struct thandle *handle,
1020 struct lustre_capa *capa)
1022 struct osd_object *obj = osd_dt_obj(dt);
1024 LASSERT(handle != NULL);
1025 LASSERT(dt_object_exists(dt));
1026 LASSERT(osd_invariant(obj));
1028 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
1031 spin_lock(&obj->oo_guard);
1032 osd_inode_setattr(env, obj->oo_inode, attr);
1033 spin_unlock(&obj->oo_guard);
1035 mark_inode_dirty(obj->oo_inode);
1039 static struct timespec *osd_inode_time(const struct lu_env *env,
1040 struct inode *inode, __u64 seconds)
1042 struct osd_thread_info *oti = osd_oti_get(env);
1043 struct timespec *t = &oti->oti_time;
1045 t->tv_sec = seconds;
1047 *t = timespec_trunc(*t, get_sb_time_gran(inode->i_sb));
1051 static void osd_inode_setattr(const struct lu_env *env,
1052 struct inode *inode, const struct lu_attr *attr)
1056 bits = attr->la_valid;
1058 LASSERT(!(bits & LA_TYPE)); /* Huh? You want too much. */
1060 if (bits & LA_ATIME)
1061 inode->i_atime = *osd_inode_time(env, inode, attr->la_atime);
1062 if (bits & LA_CTIME)
1063 inode->i_ctime = *osd_inode_time(env, inode, attr->la_ctime);
1064 if (bits & LA_MTIME)
1065 inode->i_mtime = *osd_inode_time(env, inode, attr->la_mtime);
1066 if (bits & LA_SIZE) {
1067 LDISKFS_I(inode)->i_disksize = attr->la_size;
1068 i_size_write(inode, attr->la_size);
1070 if (bits & LA_BLOCKS)
1071 inode->i_blocks = attr->la_blocks;
1073 inode->i_mode = (inode->i_mode & S_IFMT) |
1074 (attr->la_mode & ~S_IFMT);
1076 inode->i_uid = attr->la_uid;
1078 inode->i_gid = attr->la_gid;
1079 if (bits & LA_NLINK)
1080 inode->i_nlink = attr->la_nlink;
1082 inode->i_rdev = attr->la_rdev;
1083 if (bits & LA_BLKSIZE)
1084 inode->i_blksize = attr->la_blksize;
1086 if (bits & LA_FLAGS) {
1087 struct ldiskfs_inode_info *li = LDISKFS_I(inode);
1089 li->i_flags = (li->i_flags & ~LDISKFS_FL_USER_MODIFIABLE) |
1090 (attr->la_flags & LDISKFS_FL_USER_MODIFIABLE);
1097 * XXX temporary solution.
1100 static int osd_create_pre(struct osd_thread_info *info, struct osd_object *obj,
1101 struct lu_attr *attr, struct thandle *th)
1106 static int osd_create_post(struct osd_thread_info *info, struct osd_object *obj,
1107 struct lu_attr *attr, struct thandle *th)
1109 LASSERT(obj->oo_inode != NULL);
1111 osd_object_init0(obj);
1115 extern struct inode *ldiskfs_create_inode(handle_t *handle,
1116 struct inode * dir, int mode);
1118 static int osd_mkfile(struct osd_thread_info *info, struct osd_object *obj,
1120 struct dt_allocation_hint *hint,
1124 struct osd_device *osd = osd_obj2dev(obj);
1125 struct osd_thandle *oth;
1126 struct inode *parent;
1127 struct inode *inode;
1129 LASSERT(osd_invariant(obj));
1130 LASSERT(obj->oo_inode == NULL);
1131 LASSERT(osd->od_obj_area != NULL);
1133 oth = container_of(th, struct osd_thandle, ot_super);
1134 LASSERT(oth->ot_handle->h_transaction != NULL);
1136 if (hint && hint->dah_parent)
1137 parent = osd_dt_obj(hint->dah_parent)->oo_inode;
1139 parent = osd->od_obj_area->d_inode;
1140 LASSERT(parent->i_op != NULL);
1142 inode = ldiskfs_create_inode(oth->ot_handle, parent, mode);
1143 if (!IS_ERR(inode)) {
1144 obj->oo_inode = inode;
1147 result = PTR_ERR(inode);
1148 LASSERT(osd_invariant(obj));
1153 extern int iam_lvar_create(struct inode *obj, int keysize, int ptrsize,
1154 int recsize, handle_t *handle);
1160 static int osd_mkdir(struct osd_thread_info *info, struct osd_object *obj,
1161 struct lu_attr *attr,
1162 struct dt_allocation_hint *hint,
1166 struct osd_thandle *oth;
1168 LASSERT(S_ISDIR(attr->la_mode));
1170 oth = container_of(th, struct osd_thandle, ot_super);
1171 LASSERT(oth->ot_handle->h_transaction != NULL);
1172 result = osd_mkfile(info, obj, (attr->la_mode &
1173 (S_IFMT | S_IRWXUGO | S_ISVTX)), hint, th);
1175 LASSERT(obj->oo_inode != NULL);
1177 * XXX uh-oh... call low-level iam function directly.
1179 result = iam_lvar_create(obj->oo_inode, OSD_NAME_LEN, 4,
1180 sizeof (struct lu_fid_pack),
1186 static int osd_mkreg(struct osd_thread_info *info, struct osd_object *obj,
1187 struct lu_attr *attr,
1188 struct dt_allocation_hint *hint,
1191 LASSERT(S_ISREG(attr->la_mode));
1192 return osd_mkfile(info, obj, (attr->la_mode &
1193 (S_IFMT | S_IRWXUGO | S_ISVTX)), hint, th);
1196 static int osd_mksym(struct osd_thread_info *info, struct osd_object *obj,
1197 struct lu_attr *attr,
1198 struct dt_allocation_hint *hint,
1201 LASSERT(S_ISLNK(attr->la_mode));
1202 return osd_mkfile(info, obj, (attr->la_mode &
1203 (S_IFMT | S_IRWXUGO | S_ISVTX)), hint, th);
1206 static int osd_mknod(struct osd_thread_info *info, struct osd_object *obj,
1207 struct lu_attr *attr,
1208 struct dt_allocation_hint *hint,
1212 struct osd_device *osd = osd_obj2dev(obj);
1214 umode_t mode = attr->la_mode & (S_IFMT | S_IRWXUGO | S_ISVTX);
1216 LASSERT(osd_invariant(obj));
1217 LASSERT(obj->oo_inode == NULL);
1218 LASSERT(osd->od_obj_area != NULL);
1219 LASSERT(S_ISCHR(mode) || S_ISBLK(mode) ||
1220 S_ISFIFO(mode) || S_ISSOCK(mode));
1222 dir = osd->od_obj_area->d_inode;
1223 LASSERT(dir->i_op != NULL);
1225 result = osd_mkfile(info, obj, mode, hint, th);
1227 LASSERT(obj->oo_inode != NULL);
1228 init_special_inode(obj->oo_inode, mode, attr->la_rdev);
1230 LASSERT(osd_invariant(obj));
1234 typedef int (*osd_obj_type_f)(struct osd_thread_info *, struct osd_object *,
1236 struct dt_allocation_hint *hint,
1239 static osd_obj_type_f osd_create_type_f(__u32 mode)
1241 osd_obj_type_f result;
1267 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
1268 struct dt_object *parent, umode_t child_mode)
1272 memset(ah, 0, sizeof(*ah));
1273 ah->dah_parent = parent;
1274 ah->dah_mode = child_mode;
1279 * Concurrency: @dt is write locked.
1281 static int osd_object_create(const struct lu_env *env, struct dt_object *dt,
1282 struct lu_attr *attr,
1283 struct dt_allocation_hint *hint,
1286 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
1287 struct osd_object *obj = osd_dt_obj(dt);
1288 struct osd_device *osd = osd_obj2dev(obj);
1289 struct osd_thread_info *info = osd_oti_get(env);
1294 LASSERT(osd_invariant(obj));
1295 LASSERT(!dt_object_exists(dt));
1296 LASSERT(osd_write_locked(env, obj));
1297 LASSERT(th != NULL);
1300 * XXX missing: Quote handling.
1303 result = osd_create_pre(info, obj, attr, th);
1305 result = osd_create_type_f(attr->la_mode & S_IFMT)(info, obj,
1308 result = osd_create_post(info, obj, attr, th);
1311 struct osd_inode_id *id = &info->oti_id;
1313 LASSERT(obj->oo_inode != NULL);
1315 id->oii_ino = obj->oo_inode->i_ino;
1316 id->oii_gen = obj->oo_inode->i_generation;
1318 result = osd_oi_insert(info, &osd->od_oi, fid, id, th);
1321 LASSERT(ergo(result == 0, dt_object_exists(dt)));
1322 LASSERT(osd_invariant(obj));
1327 * Concurrency: @dt is write locked.
1329 static void osd_object_ref_add(const struct lu_env *env,
1330 struct dt_object *dt,
1333 struct osd_object *obj = osd_dt_obj(dt);
1334 struct inode *inode = obj->oo_inode;
1336 LASSERT(osd_invariant(obj));
1337 LASSERT(dt_object_exists(dt));
1338 LASSERT(osd_write_locked(env, obj));
1339 LASSERT(th != NULL);
1341 spin_lock(&obj->oo_guard);
1342 if (inode->i_nlink < LDISKFS_LINK_MAX) {
1344 spin_unlock(&obj->oo_guard);
1345 mark_inode_dirty(inode);
1347 spin_unlock(&obj->oo_guard);
1348 LU_OBJECT_DEBUG(D_ERROR, env, &dt->do_lu,
1349 "Overflowed nlink\n");
1351 LASSERT(osd_invariant(obj));
1355 * Concurrency: @dt is write locked.
1357 static void osd_object_ref_del(const struct lu_env *env,
1358 struct dt_object *dt,
1361 struct osd_object *obj = osd_dt_obj(dt);
1362 struct inode *inode = obj->oo_inode;
1364 LASSERT(osd_invariant(obj));
1365 LASSERT(dt_object_exists(dt));
1366 LASSERT(osd_write_locked(env, obj));
1367 LASSERT(th != NULL);
1369 spin_lock(&obj->oo_guard);
1370 if (inode->i_nlink > 0) {
1372 spin_unlock(&obj->oo_guard);
1373 mark_inode_dirty(inode);
1375 spin_unlock(&obj->oo_guard);
1376 LU_OBJECT_DEBUG(D_ERROR, env, &dt->do_lu,
1377 "Underflowed nlink\n");
1379 LASSERT(osd_invariant(obj));
1383 * Concurrency: @dt is read locked.
1385 static int osd_xattr_get(const struct lu_env *env,
1386 struct dt_object *dt,
1389 struct lustre_capa *capa)
1391 struct osd_object *obj = osd_dt_obj(dt);
1392 struct inode *inode = obj->oo_inode;
1393 struct osd_thread_info *info = osd_oti_get(env);
1394 struct dentry *dentry = &info->oti_dentry;
1396 LASSERT(dt_object_exists(dt));
1397 LASSERT(inode->i_op != NULL && inode->i_op->getxattr != NULL);
1398 LASSERT(osd_read_locked(env, obj) || osd_write_locked(env, obj));
1400 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
1403 dentry->d_inode = inode;
1404 return inode->i_op->getxattr(dentry, name, buf->lb_buf, buf->lb_len);
1408 * Concurrency: @dt is write locked.
1410 static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
1411 const struct lu_buf *buf, const char *name, int fl,
1412 struct thandle *handle, struct lustre_capa *capa)
1416 struct osd_object *obj = osd_dt_obj(dt);
1417 struct inode *inode = obj->oo_inode;
1418 struct osd_thread_info *info = osd_oti_get(env);
1419 struct dentry *dentry = &info->oti_dentry;
1421 LASSERT(dt_object_exists(dt));
1422 LASSERT(inode->i_op != NULL && inode->i_op->setxattr != NULL);
1423 LASSERT(osd_write_locked(env, obj));
1424 LASSERT(handle != NULL);
1426 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
1429 dentry->d_inode = inode;
1432 if (fl & LU_XATTR_REPLACE)
1433 fs_flags |= XATTR_REPLACE;
1435 if (fl & LU_XATTR_CREATE)
1436 fs_flags |= XATTR_CREATE;
1438 return inode->i_op->setxattr(dentry, name,
1439 buf->lb_buf, buf->lb_len, fs_flags);
1443 * Concurrency: @dt is read locked.
1445 static int osd_xattr_list(const struct lu_env *env,
1446 struct dt_object *dt,
1448 struct lustre_capa *capa)
1450 struct osd_object *obj = osd_dt_obj(dt);
1451 struct inode *inode = obj->oo_inode;
1452 struct osd_thread_info *info = osd_oti_get(env);
1453 struct dentry *dentry = &info->oti_dentry;
1455 LASSERT(dt_object_exists(dt));
1456 LASSERT(inode->i_op != NULL && inode->i_op->listxattr != NULL);
1457 LASSERT(osd_read_locked(env, obj) || osd_write_locked(env, obj));
1459 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
1462 dentry->d_inode = inode;
1463 return inode->i_op->listxattr(dentry, buf->lb_buf, buf->lb_len);
1467 * Concurrency: @dt is write locked.
1469 static int osd_xattr_del(const struct lu_env *env,
1470 struct dt_object *dt,
1472 struct thandle *handle,
1473 struct lustre_capa *capa)
1475 struct osd_object *obj = osd_dt_obj(dt);
1476 struct inode *inode = obj->oo_inode;
1477 struct osd_thread_info *info = osd_oti_get(env);
1478 struct dentry *dentry = &info->oti_dentry;
1480 LASSERT(dt_object_exists(dt));
1481 LASSERT(inode->i_op != NULL && inode->i_op->removexattr != NULL);
1482 LASSERT(osd_write_locked(env, obj));
1483 LASSERT(handle != NULL);
1485 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
1488 dentry->d_inode = inode;
1489 return inode->i_op->removexattr(dentry, name);
1492 static struct obd_capa *osd_capa_get(const struct lu_env *env,
1493 struct dt_object *dt,
1494 struct lustre_capa *old,
1495 __u32 uid, __u64 opc)
1497 struct osd_thread_info *info = osd_oti_get(env);
1498 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
1499 struct osd_object *obj = osd_dt_obj(dt);
1500 struct osd_device *dev = osd_obj2dev(obj);
1501 struct lustre_capa_key *key = &info->oti_capa_key;
1502 struct lustre_capa *capa = &info->oti_capa;
1503 struct obd_capa *oc;
1507 if (!dev->od_fl_capa)
1508 RETURN(ERR_PTR(-ENOENT));
1510 LASSERT(dt_object_exists(dt));
1511 LASSERT(osd_invariant(obj));
1513 /* renewal sanity check */
1514 if (old && osd_object_auth(env, dt, old, opc))
1515 RETURN(ERR_PTR(-EACCES));
1517 capa->lc_fid = *fid;
1520 capa->lc_flags = dev->od_capa_alg << 24;
1521 capa->lc_timeout = dev->od_capa_timeout;
1522 capa->lc_expiry = 0;
1524 oc = capa_lookup(dev->od_capa_hash, capa, 1);
1526 LASSERT(!capa_is_expired(oc));
1530 spin_lock(&capa_lock);
1531 *key = dev->od_capa_keys[1];
1532 spin_unlock(&capa_lock);
1534 capa->lc_keyid = key->lk_keyid;
1535 capa->lc_expiry = CURRENT_SECONDS + dev->od_capa_timeout;
1537 rc = capa_hmac(capa->lc_hmac, capa, key->lk_key);
1539 DEBUG_CAPA(D_ERROR, capa, "HMAC failed: %d for", rc);
1540 RETURN(ERR_PTR(rc));
1543 oc = capa_add(dev->od_capa_hash, capa);
1547 static struct dt_object_operations osd_obj_ops = {
1548 .do_read_lock = osd_object_read_lock,
1549 .do_write_lock = osd_object_write_lock,
1550 .do_read_unlock = osd_object_read_unlock,
1551 .do_write_unlock = osd_object_write_unlock,
1552 .do_attr_get = osd_attr_get,
1553 .do_attr_set = osd_attr_set,
1554 .do_ah_init = osd_ah_init,
1555 .do_create = osd_object_create,
1556 .do_index_try = osd_index_try,
1557 .do_ref_add = osd_object_ref_add,
1558 .do_ref_del = osd_object_ref_del,
1559 .do_xattr_get = osd_xattr_get,
1560 .do_xattr_set = osd_xattr_set,
1561 .do_xattr_del = osd_xattr_del,
1562 .do_xattr_list = osd_xattr_list,
1563 .do_capa_get = osd_capa_get,
1571 * XXX: Another layering violation for now.
1573 * We don't want to use ->f_op->read methods, because generic file write
1575 * - serializes on ->i_sem, and
1577 * - does a lot of extra work like balance_dirty_pages(),
1579 * which doesn't work for globally shared files like /last-received.
1581 int fsfilt_ldiskfs_read(struct inode *inode, void *buf, int size, loff_t *offs);
1582 int fsfilt_ldiskfs_write_handle(struct inode *inode, void *buf, int bufsize,
1583 loff_t *offs, handle_t *handle);
1585 static ssize_t osd_read(const struct lu_env *env, struct dt_object *dt,
1586 struct lu_buf *buf, loff_t *pos,
1587 struct lustre_capa *capa)
1589 struct inode *inode = osd_dt_obj(dt)->oo_inode;
1591 if (osd_object_auth(env, dt, capa, CAPA_OPC_BODY_READ))
1594 return fsfilt_ldiskfs_read(inode, buf->lb_buf, buf->lb_len, pos);
1597 static ssize_t osd_write(const struct lu_env *env, struct dt_object *dt,
1598 const struct lu_buf *buf, loff_t *pos,
1599 struct thandle *handle, struct lustre_capa *capa)
1601 struct inode *inode = osd_dt_obj(dt)->oo_inode;
1602 struct osd_thandle *oh;
1605 LASSERT(handle != NULL);
1607 if (osd_object_auth(env, dt, capa, CAPA_OPC_BODY_WRITE))
1610 oh = container_of(handle, struct osd_thandle, ot_super);
1611 LASSERT(oh->ot_handle->h_transaction != NULL);
1612 result = fsfilt_ldiskfs_write_handle(inode, buf->lb_buf, buf->lb_len,
1613 pos, oh->ot_handle);
1615 result = buf->lb_len;
1619 static struct dt_body_operations osd_body_ops = {
1620 .dbo_read = osd_read,
1621 .dbo_write = osd_write
1628 static int osd_object_is_root(const struct osd_object *obj)
1630 return osd_sb(osd_obj2dev(obj))->s_root->d_inode == obj->oo_inode;
1633 static int osd_index_probe(const struct lu_env *env, struct osd_object *o,
1634 const struct dt_index_features *feat)
1636 struct iam_descr *descr;
1638 if (osd_object_is_root(o))
1639 return feat == &dt_directory_features;
1641 LASSERT(o->oo_dir != NULL);
1643 descr = o->oo_dir->od_container.ic_descr;
1644 if (feat == &dt_directory_features)
1645 return descr == &iam_htree_compat_param ||
1646 (descr->id_rec_size == sizeof(struct lu_fid_pack) &&
1648 * XXX check that index looks like directory.
1653 feat->dif_keysize_min <= descr->id_key_size &&
1654 descr->id_key_size <= feat->dif_keysize_max &&
1655 feat->dif_recsize_min <= descr->id_rec_size &&
1656 descr->id_rec_size <= feat->dif_recsize_max &&
1657 !(feat->dif_flags & (DT_IND_VARKEY |
1658 DT_IND_VARREC | DT_IND_NONUNQ)) &&
1659 ergo(feat->dif_flags & DT_IND_UPDATE,
1660 1 /* XXX check that object (and file system) is
1664 static int osd_container_init(const struct lu_env *env,
1665 struct osd_object *obj,
1666 struct osd_directory *dir)
1669 struct iam_container *bag;
1671 bag = &dir->od_container;
1672 result = iam_container_init(bag, &dir->od_descr, obj->oo_inode);
1674 result = iam_container_setup(bag);
1676 obj->oo_dt.do_index_ops = &osd_index_ops;
1678 iam_container_fini(bag);
1684 * Concurrency: no external locking is necessary.
1686 static int osd_index_try(const struct lu_env *env, struct dt_object *dt,
1687 const struct dt_index_features *feat)
1690 struct osd_object *obj = osd_dt_obj(dt);
1692 LASSERT(osd_invariant(obj));
1693 LASSERT(dt_object_exists(dt));
1695 if (osd_object_is_root(obj)) {
1696 dt->do_index_ops = &osd_index_compat_ops;
1698 } else if (!osd_has_index(obj)) {
1699 struct osd_directory *dir;
1703 sema_init(&dir->od_sem, 1);
1705 spin_lock(&obj->oo_guard);
1706 if (obj->oo_dir == NULL)
1710 * Concurrent thread allocated container data.
1713 spin_unlock(&obj->oo_guard);
1715 * Now, that we have container data, serialize its
1718 down(&obj->oo_dir->od_sem);
1720 * recheck under lock.
1722 if (!osd_has_index(obj))
1723 result = osd_container_init(env, obj, dir);
1726 up(&obj->oo_dir->od_sem);
1733 if (!osd_index_probe(env, obj, feat))
1736 LASSERT(osd_invariant(obj));
1741 static int osd_index_delete(const struct lu_env *env, struct dt_object *dt,
1742 const struct dt_key *key, struct thandle *handle,
1743 struct lustre_capa *capa)
1745 struct osd_object *obj = osd_dt_obj(dt);
1746 struct osd_thandle *oh;
1747 struct iam_path_descr *ipd;
1748 struct iam_container *bag = &obj->oo_dir->od_container;
1753 LASSERT(osd_invariant(obj));
1754 LASSERT(dt_object_exists(dt));
1755 LASSERT(bag->ic_object == obj->oo_inode);
1756 LASSERT(handle != NULL);
1758 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_DELETE))
1761 ipd = osd_ipd_get(env, bag);
1762 if (unlikely(ipd == NULL))
1765 oh = container_of0(handle, struct osd_thandle, ot_super);
1766 LASSERT(oh->ot_handle != NULL);
1767 LASSERT(oh->ot_handle->h_transaction != NULL);
1769 rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
1770 osd_ipd_put(env, bag, ipd);
1771 LASSERT(osd_invariant(obj));
1775 static int osd_index_lookup(const struct lu_env *env, struct dt_object *dt,
1776 struct dt_rec *rec, const struct dt_key *key,
1777 struct lustre_capa *capa)
1779 struct osd_object *obj = osd_dt_obj(dt);
1780 struct iam_path_descr *ipd;
1781 struct iam_container *bag = &obj->oo_dir->od_container;
1786 LASSERT(osd_invariant(obj));
1787 LASSERT(dt_object_exists(dt));
1788 LASSERT(bag->ic_object == obj->oo_inode);
1790 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_LOOKUP))
1793 ipd = osd_ipd_get(env, bag);
1794 if (unlikely(ipd == NULL))
1797 rc = iam_lookup(bag, (const struct iam_key *)key,
1798 (struct iam_rec *)rec, ipd);
1799 osd_ipd_put(env, bag, ipd);
1800 LASSERT(osd_invariant(obj));
1805 static int osd_index_insert(const struct lu_env *env, struct dt_object *dt,
1806 const struct dt_rec *rec, const struct dt_key *key,
1807 struct thandle *th, struct lustre_capa *capa)
1809 struct osd_object *obj = osd_dt_obj(dt);
1810 struct iam_path_descr *ipd;
1811 struct osd_thandle *oh;
1812 struct iam_container *bag = &obj->oo_dir->od_container;
1817 LASSERT(osd_invariant(obj));
1818 LASSERT(dt_object_exists(dt));
1819 LASSERT(bag->ic_object == obj->oo_inode);
1820 LASSERT(th != NULL);
1822 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_INSERT))
1825 ipd = osd_ipd_get(env, bag);
1826 if (unlikely(ipd == NULL))
1829 oh = container_of0(th, struct osd_thandle, ot_super);
1830 LASSERT(oh->ot_handle != NULL);
1831 LASSERT(oh->ot_handle->h_transaction != NULL);
1832 rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
1833 (struct iam_rec *)rec, ipd);
1834 osd_ipd_put(env, bag, ipd);
1835 LASSERT(osd_invariant(obj));
1840 * Iterator operations.
1843 struct osd_object *oi_obj;
1844 struct iam_path_descr *oi_ipd;
1845 struct iam_iterator oi_it;
1848 static struct dt_it *osd_it_init(const struct lu_env *env,
1849 struct dt_object *dt, int writable,
1850 struct lustre_capa *capa)
1853 struct osd_object *obj = osd_dt_obj(dt);
1854 struct lu_object *lo = &dt->do_lu;
1855 struct iam_path_descr *ipd;
1856 struct iam_container *bag = &obj->oo_dir->od_container;
1859 LASSERT(lu_object_exists(lo));
1861 if (osd_object_auth(env, dt, capa, writable ? CAPA_OPC_BODY_WRITE :
1862 CAPA_OPC_BODY_READ))
1863 return ERR_PTR(-EACCES);
1865 flags = writable ? IAM_IT_MOVE|IAM_IT_WRITE : IAM_IT_MOVE;
1869 * XXX: as ipd is allocated within osd_thread_info, assignment
1870 * below implies that iterator usage is confined within single
1873 ipd = osd_ipd_get(env, bag);
1874 if (likely(ipd != NULL)) {
1878 iam_it_init(&it->oi_it, bag, flags, ipd);
1879 return (struct dt_it *)it;
1883 return ERR_PTR(-ENOMEM);
1886 static void osd_it_fini(const struct lu_env *env, struct dt_it *di)
1888 struct osd_it *it = (struct osd_it *)di;
1889 struct osd_object *obj = it->oi_obj;
1891 iam_it_fini(&it->oi_it);
1892 osd_ipd_put(env, &obj->oo_dir->od_container, it->oi_ipd);
1893 lu_object_put(env, &obj->oo_dt.do_lu);
1897 static int osd_it_get(const struct lu_env *env,
1898 struct dt_it *di, const struct dt_key *key)
1900 struct osd_it *it = (struct osd_it *)di;
1902 return iam_it_get(&it->oi_it, (const struct iam_key *)key);
1905 static void osd_it_put(const struct lu_env *env, struct dt_it *di)
1907 struct osd_it *it = (struct osd_it *)di;
1909 iam_it_put(&it->oi_it);
1912 static int osd_it_next(const struct lu_env *env, struct dt_it *di)
1914 struct osd_it *it = (struct osd_it *)di;
1916 return iam_it_next(&it->oi_it);
1919 static int osd_it_del(const struct lu_env *env, struct dt_it *di,
1922 struct osd_it *it = (struct osd_it *)di;
1923 struct osd_thandle *oh;
1925 LASSERT(th != NULL);
1927 oh = container_of0(th, struct osd_thandle, ot_super);
1928 LASSERT(oh->ot_handle != NULL);
1929 LASSERT(oh->ot_handle->h_transaction != NULL);
1931 return iam_it_rec_delete(oh->ot_handle, &it->oi_it);
1934 static struct dt_key *osd_it_key(const struct lu_env *env,
1935 const struct dt_it *di)
1937 struct osd_it *it = (struct osd_it *)di;
1939 return (struct dt_key *)iam_it_key_get(&it->oi_it);
1942 static int osd_it_key_size(const struct lu_env *env, const struct dt_it *di)
1944 struct osd_it *it = (struct osd_it *)di;
1946 return iam_it_key_size(&it->oi_it);
1949 static struct dt_rec *osd_it_rec(const struct lu_env *env,
1950 const struct dt_it *di)
1952 struct osd_it *it = (struct osd_it *)di;
1954 return (struct dt_rec *)iam_it_rec_get(&it->oi_it);
1957 static __u32 osd_it_store(const struct lu_env *env, const struct dt_it *di)
1959 struct osd_it *it = (struct osd_it *)di;
1961 return iam_it_store(&it->oi_it);
1964 static int osd_it_load(const struct lu_env *env,
1965 const struct dt_it *di, __u32 hash)
1967 struct osd_it *it = (struct osd_it *)di;
1969 return iam_it_load(&it->oi_it, hash);
1972 static struct dt_index_operations osd_index_ops = {
1973 .dio_lookup = osd_index_lookup,
1974 .dio_insert = osd_index_insert,
1975 .dio_delete = osd_index_delete,
1977 .init = osd_it_init,
1978 .fini = osd_it_fini,
1982 .next = osd_it_next,
1984 .key_size = osd_it_key_size,
1986 .store = osd_it_store,
1991 static int osd_index_compat_delete(const struct lu_env *env,
1992 struct dt_object *dt,
1993 const struct dt_key *key,
1994 struct thandle *handle,
1995 struct lustre_capa *capa)
1997 struct osd_object *obj = osd_dt_obj(dt);
1999 LASSERT(handle != NULL);
2000 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
2004 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_DELETE))
2008 RETURN(-EOPNOTSUPP);
2012 * Compatibility index operations.
2016 static void osd_build_pack(const struct lu_env *env, struct osd_device *osd,
2017 struct dentry *dentry, struct lu_fid_pack *pack)
2019 struct inode *inode = dentry->d_inode;
2020 struct lu_fid *fid = &osd_oti_get(env)->oti_fid;
2022 lu_igif_build(fid, inode->i_ino, inode->i_generation);
2023 fid_cpu_to_be(fid, fid);
2024 pack->fp_len = sizeof *fid + 1;
2025 memcpy(pack->fp_area, fid, sizeof *fid);
2028 static int osd_index_compat_lookup(const struct lu_env *env,
2029 struct dt_object *dt,
2030 struct dt_rec *rec, const struct dt_key *key,
2031 struct lustre_capa *capa)
2033 struct osd_object *obj = osd_dt_obj(dt);
2035 struct osd_device *osd = osd_obj2dev(obj);
2036 struct osd_thread_info *info = osd_oti_get(env);
2042 * XXX temporary solution.
2044 struct dentry *dentry;
2045 struct dentry *parent;
2047 LASSERT(osd_invariant(obj));
2048 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
2049 LASSERT(osd_has_index(obj));
2051 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_LOOKUP))
2054 info->oti_str.name = (const char *)key;
2055 info->oti_str.len = strlen((const char *)key);
2057 dir = obj->oo_inode;
2058 LASSERT(dir->i_op != NULL && dir->i_op->lookup != NULL);
2060 parent = d_alloc_root(dir);
2064 dentry = d_alloc(parent, &info->oti_str);
2065 if (dentry != NULL) {
2069 * XXX passing NULL for nameidata should work for
2072 d = dir->i_op->lookup(dir, dentry, NULL);
2075 * normal case, result is in @dentry.
2077 if (dentry->d_inode != NULL) {
2078 osd_build_pack(env, osd, dentry,
2079 (struct lu_fid_pack *)rec);
2084 /* What? Disconnected alias? Ppheeeww... */
2085 CERROR("Aliasing where not expected\n");
2093 LASSERT(osd_invariant(obj));
2097 static int osd_add_rec(struct osd_thread_info *info, struct osd_device *dev,
2098 struct inode *dir, struct inode *inode, const char *name)
2102 struct dentry *parent;
2106 info->oti_str.name = name;
2107 info->oti_str.len = strlen(name);
2109 LASSERT(atomic_read(&dir->i_count) > 0);
2111 old = d_alloc(dev->od_obj_area, &info->oti_str);
2113 d_instantiate(old, inode);
2115 LASSERT(atomic_read(&dir->i_count) > 0);
2116 parent = d_alloc_root(dir);
2117 if (parent != NULL) {
2119 LASSERT(atomic_read(&dir->i_count) > 1);
2120 new = d_alloc(parent, &info->oti_str);
2121 LASSERT(atomic_read(&dir->i_count) > 1);
2123 LASSERT(atomic_read(&dir->i_count) > 1);
2124 result = dir->i_op->link(old, dir, new);
2125 LASSERT(atomic_read(&dir->i_count) > 1);
2127 LASSERT(atomic_read(&dir->i_count) > 1);
2129 LASSERT(atomic_read(&dir->i_count) > 1);
2131 LASSERT(atomic_read(&dir->i_count) > 0);
2135 LASSERT(atomic_read(&dir->i_count) > 0);
2141 * XXX Temporary stuff.
2143 static int osd_index_compat_insert(const struct lu_env *env,
2144 struct dt_object *dt,
2145 const struct dt_rec *rec,
2146 const struct dt_key *key, struct thandle *th,
2147 struct lustre_capa *capa)
2149 struct osd_object *obj = osd_dt_obj(dt);
2151 const char *name = (const char *)key;
2153 struct lu_device *ludev = dt->do_lu.lo_dev;
2154 struct lu_object *luch;
2156 struct osd_thread_info *info = osd_oti_get(env);
2157 const struct lu_fid_pack *pack = (const struct lu_fid_pack *)rec;
2158 struct lu_fid *fid = &osd_oti_get(env)->oti_fid;
2162 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
2163 LASSERT(osd_invariant(obj));
2164 LASSERT(th != NULL);
2166 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_INSERT))
2169 fid_unpack(pack, fid);
2170 luch = lu_object_find(env, ludev->ld_site, fid);
2171 if (!IS_ERR(luch)) {
2172 if (lu_object_exists(luch)) {
2173 struct osd_object *child;
2175 child = osd_obj(lu_object_locate(luch->lo_header,
2178 result = osd_add_rec(info, osd_obj2dev(obj),
2180 child->oo_inode, name);
2182 CERROR("No osd slice.\n");
2185 LASSERT(osd_invariant(obj));
2186 LASSERT(osd_invariant(child));
2191 lu_object_put(env, luch);
2193 result = PTR_ERR(luch);
2194 LASSERT(osd_invariant(obj));
2198 static struct dt_index_operations osd_index_compat_ops = {
2199 .dio_lookup = osd_index_compat_lookup,
2200 .dio_insert = osd_index_compat_insert,
2201 .dio_delete = osd_index_compat_delete
2205 * OSD device type methods
2207 static int osd_type_init(struct lu_device_type *t)
2209 LU_CONTEXT_KEY_INIT(&osd_key);
2210 return lu_context_key_register(&osd_key);
2213 static void osd_type_fini(struct lu_device_type *t)
2215 lu_context_key_degister(&osd_key);
2218 static struct lu_context_key osd_key = {
2219 .lct_tags = LCT_DT_THREAD | LCT_MD_THREAD,
2220 .lct_init = osd_key_init,
2221 .lct_fini = osd_key_fini,
2222 .lct_exit = osd_key_exit
2225 static void *osd_key_init(const struct lu_context *ctx,
2226 struct lu_context_key *key)
2228 struct osd_thread_info *info;
2230 OBD_ALLOC_PTR(info);
2232 info->oti_env = container_of(ctx, struct lu_env, le_ctx);
2234 info = ERR_PTR(-ENOMEM);
2238 static void osd_key_fini(const struct lu_context *ctx,
2239 struct lu_context_key *key, void *data)
2241 struct osd_thread_info *info = data;
2245 static void osd_key_exit(const struct lu_context *ctx,
2246 struct lu_context_key *key, void *data)
2249 struct osd_thread_info *info = data;
2251 LASSERT(info->oti_r_locks == 0);
2252 LASSERT(info->oti_w_locks == 0);
2253 LASSERT(info->oti_txns == 0);
2257 static int osd_device_init(const struct lu_env *env, struct lu_device *d,
2258 const char *name, struct lu_device *next)
2260 return lu_env_init(&osd_dev(d)->od_env_for_commit, NULL, LCT_MD_THREAD);
2263 static int osd_shutdown(const struct lu_env *env, struct osd_device *o)
2265 struct osd_thread_info *info = osd_oti_get(env);
2267 if (o->od_obj_area != NULL) {
2268 dput(o->od_obj_area);
2269 o->od_obj_area = NULL;
2271 osd_oi_fini(info, &o->od_oi);
2276 static int osd_mount(const struct lu_env *env,
2277 struct osd_device *o, struct lustre_cfg *cfg)
2279 struct lustre_mount_info *lmi;
2280 const char *dev = lustre_cfg_string(cfg, 0);
2281 struct osd_thread_info *info = osd_oti_get(env);
2286 if (o->od_mount != NULL) {
2287 CERROR("Already mounted (%s)\n", dev);
2292 lmi = server_get_mount(dev);
2294 CERROR("Cannot get mount info for %s!\n", dev);
2298 LASSERT(lmi != NULL);
2299 /* save lustre_mount_info in dt_device */
2302 result = osd_oi_init(info, &o->od_oi, &o->od_dt_dev);
2306 d = simple_mkdir(osd_sb(o)->s_root, "*OBJ-TEMP*", 0777, 1);
2310 result = PTR_ERR(d);
2313 osd_shutdown(env, o);
2317 static struct lu_device *osd_device_fini(const struct lu_env *env,
2318 struct lu_device *d)
2322 shrink_dcache_sb(osd_sb(osd_dev(d)));
2323 osd_sync(env, lu2dt_dev(d));
2325 if (osd_dev(d)->od_mount)
2326 server_put_mount(osd_dev(d)->od_mount->lmi_name,
2327 osd_dev(d)->od_mount->lmi_mnt);
2328 osd_dev(d)->od_mount = NULL;
2330 lu_env_fini(&osd_dev(d)->od_env_for_commit);
2334 static struct lu_device *osd_device_alloc(const struct lu_env *env,
2335 struct lu_device_type *t,
2336 struct lustre_cfg *cfg)
2338 struct lu_device *l;
2339 struct osd_device *o;
2345 result = dt_device_init(&o->od_dt_dev, t);
2348 l->ld_ops = &osd_lu_ops;
2349 o->od_dt_dev.dd_ops = &osd_dt_ops;
2350 spin_lock_init(&o->od_osfs_lock);
2351 o->od_osfs_age = cfs_time_shift_64(-1000);
2352 o->od_capa_hash = init_capa_hash();
2353 if (o->od_capa_hash == NULL)
2354 l = ERR_PTR(-ENOMEM);
2356 l = ERR_PTR(result);
2358 l = ERR_PTR(-ENOMEM);
2362 static void osd_device_free(const struct lu_env *env, struct lu_device *d)
2364 struct osd_device *o = osd_dev(d);
2366 cleanup_capa_hash(o->od_capa_hash);
2367 dt_device_fini(&o->od_dt_dev);
2371 static int osd_process_config(const struct lu_env *env,
2372 struct lu_device *d, struct lustre_cfg *cfg)
2374 struct osd_device *o = osd_dev(d);
2378 switch(cfg->lcfg_command) {
2380 err = osd_mount(env, o, cfg);
2383 err = osd_shutdown(env, o);
2391 extern void ldiskfs_orphan_cleanup (struct super_block * sb,
2392 struct ldiskfs_super_block * es);
2394 static int osd_recovery_complete(const struct lu_env *env,
2395 struct lu_device *d)
2397 struct osd_device *o = osd_dev(d);
2399 /* TODO: orphans handling */
2400 ldiskfs_orphan_cleanup(osd_sb(o), LDISKFS_SB(osd_sb(o))->s_es);
2404 static struct inode *osd_iget(struct osd_thread_info *info,
2405 struct osd_device *dev,
2406 const struct osd_inode_id *id)
2408 struct inode *inode;
2410 inode = iget(osd_sb(dev), id->oii_ino);
2411 if (inode == NULL) {
2412 CERROR("no inode\n");
2413 inode = ERR_PTR(-EACCES);
2414 } else if (is_bad_inode(inode)) {
2415 CERROR("bad inode\n");
2417 inode = ERR_PTR(-ENOENT);
2418 } else if (inode->i_generation != id->oii_gen) {
2419 CERROR("stale inode\n");
2421 inode = ERR_PTR(-ESTALE);
2428 static int osd_fid_lookup(const struct lu_env *env,
2429 struct osd_object *obj, const struct lu_fid *fid)
2431 struct osd_thread_info *info;
2432 struct lu_device *ldev = obj->oo_dt.do_lu.lo_dev;
2433 struct osd_device *dev;
2434 struct osd_inode_id *id;
2436 struct inode *inode;
2439 LASSERT(osd_invariant(obj));
2440 LASSERT(obj->oo_inode == NULL);
2441 LASSERT(fid_is_sane(fid));
2443 * This assertion checks that osd layer sees only local
2444 * fids. Unfortunately it is somewhat expensive (does a
2445 * cache-lookup). Disabling it for production/acceptance-testing.
2447 LASSERT(1 || fid_is_local(ldev->ld_site, fid));
2451 info = osd_oti_get(env);
2452 dev = osd_dev(ldev);
2456 if (OBD_FAIL_CHECK(OBD_FAIL_OST_ENOENT))
2459 result = osd_oi_lookup(info, oi, fid, id);
2461 inode = osd_iget(info, dev, id);
2462 if (!IS_ERR(inode)) {
2463 obj->oo_inode = inode;
2464 LASSERT(obj->oo_inode->i_sb == osd_sb(dev));
2468 * If fid wasn't found in oi, inode-less object is
2469 * created, for which lu_object_exists() returns
2470 * false. This is used in a (frequent) case when
2471 * objects are created as locking anchors or
2472 * place holders for objects yet to be created.
2474 result = PTR_ERR(inode);
2475 } else if (result == -ENOENT)
2477 LASSERT(osd_invariant(obj));
2481 static void osd_inode_getattr(const struct lu_env *env,
2482 struct inode *inode, struct lu_attr *attr)
2484 attr->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE |
2485 LA_SIZE | LA_BLOCKS | LA_UID | LA_GID |
2486 LA_FLAGS | LA_NLINK | LA_RDEV | LA_BLKSIZE;
2488 attr->la_atime = LTIME_S(inode->i_atime);
2489 attr->la_mtime = LTIME_S(inode->i_mtime);
2490 attr->la_ctime = LTIME_S(inode->i_ctime);
2491 attr->la_mode = inode->i_mode;
2492 attr->la_size = i_size_read(inode);
2493 attr->la_blocks = inode->i_blocks;
2494 attr->la_uid = inode->i_uid;
2495 attr->la_gid = inode->i_gid;
2496 attr->la_flags = LDISKFS_I(inode)->i_flags;
2497 attr->la_nlink = inode->i_nlink;
2498 attr->la_rdev = inode->i_rdev;
2499 attr->la_blksize = inode->i_blksize;
2506 static int lu_device_is_osd(const struct lu_device *d)
2508 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &osd_lu_ops);
2511 static struct osd_object *osd_obj(const struct lu_object *o)
2513 LASSERT(lu_device_is_osd(o->lo_dev));
2514 return container_of0(o, struct osd_object, oo_dt.do_lu);
2517 static struct osd_device *osd_dt_dev(const struct dt_device *d)
2519 LASSERT(lu_device_is_osd(&d->dd_lu_dev));
2520 return container_of0(d, struct osd_device, od_dt_dev);
2523 static struct osd_device *osd_dev(const struct lu_device *d)
2525 LASSERT(lu_device_is_osd(d));
2526 return osd_dt_dev(container_of0(d, struct dt_device, dd_lu_dev));
2529 static struct osd_object *osd_dt_obj(const struct dt_object *d)
2531 return osd_obj(&d->do_lu);
2534 static struct osd_device *osd_obj2dev(const struct osd_object *o)
2536 return osd_dev(o->oo_dt.do_lu.lo_dev);
2539 static struct lu_device *osd2lu_dev(struct osd_device *osd)
2541 return &osd->od_dt_dev.dd_lu_dev;
2544 static struct super_block *osd_sb(const struct osd_device *dev)
2546 return dev->od_mount->lmi_mnt->mnt_sb;
2549 static journal_t *osd_journal(const struct osd_device *dev)
2551 return LDISKFS_SB(osd_sb(dev))->s_journal;
2554 static int osd_has_index(const struct osd_object *obj)
2556 return obj->oo_dt.do_index_ops != NULL;
2559 static int osd_object_invariant(const struct lu_object *l)
2561 return osd_invariant(osd_obj(l));
2564 static struct lu_object_operations osd_lu_obj_ops = {
2565 .loo_object_init = osd_object_init,
2566 .loo_object_delete = osd_object_delete,
2567 .loo_object_release = osd_object_release,
2568 .loo_object_free = osd_object_free,
2569 .loo_object_print = osd_object_print,
2570 .loo_object_invariant = osd_object_invariant
2573 static struct lu_device_operations osd_lu_ops = {
2574 .ldo_object_alloc = osd_object_alloc,
2575 .ldo_process_config = osd_process_config,
2576 .ldo_recovery_complete = osd_recovery_complete
2579 static struct lu_device_type_operations osd_device_type_ops = {
2580 .ldto_init = osd_type_init,
2581 .ldto_fini = osd_type_fini,
2583 .ldto_device_alloc = osd_device_alloc,
2584 .ldto_device_free = osd_device_free,
2586 .ldto_device_init = osd_device_init,
2587 .ldto_device_fini = osd_device_fini
2590 static struct lu_device_type osd_device_type = {
2591 .ldt_tags = LU_DEVICE_DT,
2592 .ldt_name = LUSTRE_OSD_NAME,
2593 .ldt_ops = &osd_device_type_ops,
2594 .ldt_ctx_tags = LCT_MD_THREAD|LCT_DT_THREAD
2598 * lprocfs legacy support.
2600 static struct lprocfs_vars lprocfs_osd_obd_vars[] = {
2604 static struct lprocfs_vars lprocfs_osd_module_vars[] = {
2608 static struct obd_ops osd_obd_device_ops = {
2609 .o_owner = THIS_MODULE
2612 LPROCFS_INIT_VARS(osd, lprocfs_osd_module_vars, lprocfs_osd_obd_vars);
2614 static int __init osd_mod_init(void)
2616 struct lprocfs_static_vars lvars;
2618 lprocfs_init_vars(osd, &lvars);
2619 return class_register_type(&osd_obd_device_ops, NULL, lvars.module_vars,
2620 LUSTRE_OSD_NAME, &osd_device_type);
2623 static void __exit osd_mod_exit(void)
2625 class_unregister_type(LUSTRE_OSD_NAME);
2628 MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
2629 MODULE_DESCRIPTION("Lustre Object Storage Device ("LUSTRE_OSD_NAME")");
2630 MODULE_LICENSE("GPL");
2632 cfs_module(osd, "0.0.2", osd_mod_init, osd_mod_exit);