4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2012, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/osd/osd_internal.h
38 * Shared definitions and declarations for osd module
40 * Author: Nikita Danilov <nikita@clusterfs.com>
43 #ifndef _OSD_INTERNAL_H
44 #define _OSD_INTERNAL_H
46 #if defined(__KERNEL__)
48 /* struct rw_semaphore */
49 #include <linux/rwsem.h>
51 #include <linux/dcache.h>
53 #include <linux/dirent.h>
55 #include <ldiskfs/ldiskfs.h>
56 #include <ldiskfs/ldiskfs_jbd2.h>
57 #ifdef HAVE_LDISKFS_JOURNAL_CALLBACK_ADD
58 # define journal_callback ldiskfs_journal_cb_entry
59 # define osd_journal_callback_set(handle, func, jcb) \
60 ldiskfs_journal_callback_add(handle, func, jcb)
62 # define osd_journal_callback_set(handle, func, jcb) \
63 jbd2_journal_callback_set(handle, func, jcb)
66 /* fsfilt_{get|put}_ops */
67 #include <lustre_fsfilt.h>
71 /* class_register_type(), class_unregister_type(), class_get_type() */
72 #include <obd_class.h>
73 #include <lustre_disk.h>
74 #include <dt_object.h>
75 #include <lustre_quota.h>
79 #include "osd_scrub.h"
80 #include "osd_quota_fmt.h"
84 #define OSD_COUNTERS (0)
86 /* Lustre special inode::i_state to indicate OI scrub skip this inode. */
87 #define I_LUSTRE_NOSCRUB (1 << 31)
89 /** Enable thandle usage statistics */
90 #define OSD_THANDLE_STATS (0)
92 struct osd_directory {
93 struct iam_container od_container;
94 struct iam_descr od_descr;
98 * Object Index (oi) instance.
102 * underlying index object, where fid->id mapping in stored.
104 struct inode *oi_inode;
105 struct osd_directory oi_dir;
108 extern const int osd_dto_credits_noquota[];
111 struct dt_object oo_dt;
113 * Inode for file system object represented by this osd_object. This
114 * inode is pinned for the whole duration of lu_object life.
116 * Not modified concurrently (either setup early during object
117 * creation, or assigned by osd_object_create() under write lock).
119 struct inode *oo_inode;
121 * to protect index ops.
123 struct htree_lock_head *oo_hl_head;
124 struct rw_semaphore oo_ext_idx_sem;
125 struct rw_semaphore oo_sem;
126 struct osd_directory *oo_dir;
127 /** protects inode attributes. */
130 * Following two members are used to indicate the presence of dot and
131 * dotdot in the given directory. This is required for interop mode
134 int oo_compat_dot_created;
135 int oo_compat_dotdot_created;
137 const struct lu_env *oo_owner;
138 #ifdef CONFIG_LOCKDEP
139 struct lockdep_map oo_dep_map;
144 /* protects on-fly initialization */
145 int oos_subdir_count; /* subdir count for each seq */
146 struct dentry *oos_root; /* O/<seq> */
147 struct dentry **oos_dirs; /* O/<seq>/d0-dXX */
148 obd_seq oos_seq; /* seq number */
149 cfs_list_t oos_seq_list; /* list to seq_list */
153 struct dentry *om_root; /* dentry for /O */
154 rwlock_t om_seq_list_lock; /* lock for seq_list */
155 cfs_list_t om_seq_list; /* list head for seq */
157 struct semaphore om_dir_init_sem;
160 #define osd_ldiskfs_find_entry(dir, dentry, de, lock) \
161 ll_ldiskfs_find_entry(dir, dentry, de, lock)
162 #define osd_ldiskfs_add_entry(handle, child, cinode, hlock) \
163 ldiskfs_add_entry(handle, child, cinode, hlock)
165 #define OSD_OTABLE_IT_CACHE_SIZE 128
166 #define OSD_OTABLE_IT_CACHE_MASK (~(OSD_OTABLE_IT_CACHE_SIZE - 1))
168 struct osd_inconsistent_item {
169 /* link into osd_scrub::os_inconsistent_items,
170 * protected by osd_scrub::os_lock. */
173 /* The right FID <=> ino#/gen mapping. */
174 struct osd_idmap_cache oii_cache;
176 unsigned int oii_insert:1; /* insert or update mapping. */
179 struct osd_otable_cache {
180 struct osd_idmap_cache ooc_cache[OSD_OTABLE_IT_CACHE_SIZE];
182 /* Index for next cache slot to be filled. */
183 int ooc_producer_idx;
185 /* Index for next cache slot to be returned by it::next(). */
186 int ooc_consumer_idx;
188 /* How many items in ooc_cache. */
189 int ooc_cached_items;
191 /* Position for up layer LFSCK iteration pre-loading. */
192 __u32 ooc_pos_preload;
195 struct osd_otable_it {
196 struct osd_device *ooi_dev;
197 struct osd_otable_cache ooi_cache;
199 /* For osd_otable_it_key. */
202 /* The following bits can be updated/checked w/o lock protection.
203 * If more bits will be introduced in the future and need lock to
204 * protect, please add comment. */
205 unsigned long ooi_used_outside:1, /* Some user out of OSD
206 * uses the iteration. */
207 ooi_all_cached:1, /* No more entries can be
208 * filled into cache. */
209 ooi_user_ready:1, /* The user out of OSD is
210 * ready to iterate. */
211 ooi_waiting:1; /* it::next is waiting. */
214 extern const int osd_dto_credits_noquota[];
221 struct dt_device od_dt_dev;
222 /* information about underlying file system */
223 struct vfsmount *od_mnt;
225 struct osd_oi **od_oi_table;
226 /* total number of OI containers */
231 unsigned int od_fl_capa:1,
232 od_is_md:1; /* set in ->ldo_prepare */
233 unsigned long od_capa_timeout;
235 struct lustre_capa_key *od_capa_keys;
236 cfs_hlist_head_t *od_capa_hash;
238 cfs_proc_dir_entry_t *od_proc_entry;
239 struct lprocfs_stats *od_stats;
241 * statfs optimization: we cache a bit.
243 cfs_time_t od_osfs_age;
244 struct obd_statfs od_statfs;
245 spinlock_t od_osfs_lock;
247 unsigned int od_noscrub:1;
249 struct fsfilt_operations *od_fsops;
251 struct lu_site od_site;
253 struct osd_obj_map *od_ost_map;
255 unsigned long long od_readcache_max_filesize;
257 int od_writethrough_cache;
259 struct brw_stats od_brw_stats;
260 cfs_atomic_t od_r_in_flight;
261 cfs_atomic_t od_w_in_flight;
263 struct mutex od_otable_mutex;
264 struct osd_otable_it *od_otable_it;
265 struct osd_scrub od_scrub;
267 /* service name associated with the osd device */
268 char od_svname[MAX_OBD_NAME];
269 char od_mntdev[MAX_OBD_NAME];
271 /* quota slave instance */
272 struct qsd_instance *od_quota_slave;
275 #define OSD_TRACK_DECLARES
276 #ifdef OSD_TRACK_DECLARES
277 #define OSD_DECLARE_OP(oh, op, credits) \
279 LASSERT((oh)->ot_handle == NULL); \
280 ((oh)->ot_declare_ ##op)++; \
281 ((oh)->ot_declare_ ##op ##_cred) += (credits); \
282 (oh)->ot_credits += (credits); \
284 #define OSD_EXEC_OP(handle, op) \
286 struct osd_thandle *oh = container_of(handle, typeof(*oh), ot_super); \
287 LASSERT((oh)->ot_declare_ ##op > 0); \
288 ((oh)->ot_declare_ ##op)--; \
291 #define OSD_DECLARE_OP(oh, op, credits) (oh)->ot_credits += (credits)
292 #define OSD_EXEC_OP(oh, op)
295 /* There are at most 10 uid/gids are affected in a transaction, and
296 * that's rename case:
297 * - 2 for source parent uid & gid;
298 * - 2 for source child uid & gid ('..' entry update when child is directory);
299 * - 2 for target parent uid & gid;
300 * - 2 for target child uid & gid (if the target child exists);
301 * - 2 for root uid & gid (last_rcvd, llog, etc);
303 * The 0 to (OSD_MAX_UGID_CNT - 1) bits of ot_id_type is for indicating
304 * the id type of each id in the ot_id_array.
306 #define OSD_MAX_UGID_CNT 10
309 struct thandle ot_super;
311 struct journal_callback ot_jcb;
312 cfs_list_t ot_dcb_list;
313 /* Link to the device, for debugging. */
314 struct lu_ref_link *ot_dev_link;
315 unsigned short ot_credits;
316 unsigned short ot_id_cnt;
317 unsigned short ot_id_type;
318 uid_t ot_id_array[OSD_MAX_UGID_CNT];
319 struct lquota_trans *ot_quota_trans;
321 #ifdef OSD_TRACK_DECLARES
322 /* Tracking for transaction credits, to allow debugging and optimizing
323 * cases where a large number of credits are being allocated for
324 * single transaction. */
325 unsigned char ot_declare_attr_set;
326 unsigned char ot_declare_punch;
327 unsigned char ot_declare_xattr_set;
328 unsigned char ot_declare_create;
329 unsigned char ot_declare_destroy;
330 unsigned char ot_declare_ref_add;
331 unsigned char ot_declare_ref_del;
332 unsigned char ot_declare_write;
333 unsigned char ot_declare_insert;
334 unsigned char ot_declare_delete;
335 unsigned char ot_declare_quota;
337 unsigned short ot_declare_attr_set_cred;
338 unsigned short ot_declare_punch_cred;
339 unsigned short ot_declare_xattr_set_cred;
340 unsigned short ot_declare_create_cred;
341 unsigned short ot_declare_destroy_cred;
342 unsigned short ot_declare_ref_add_cred;
343 unsigned short ot_declare_ref_del_cred;
344 unsigned short ot_declare_write_cred;
345 unsigned short ot_declare_insert_cred;
346 unsigned short ot_declare_delete_cred;
347 unsigned short ot_declare_quota_cred;
350 #if OSD_THANDLE_STATS
351 /** time when this handle was allocated */
352 cfs_time_t oth_alloced;
354 /** time when this thanle was started */
355 cfs_time_t oth_started;
360 * Basic transaction credit op
370 DTO_LOG_REC, /**< XXX temporary: dt layer knows nothing about llog. */
384 LPROC_OSD_READ_BYTES = 0,
385 LPROC_OSD_WRITE_BYTES = 1,
386 LPROC_OSD_GET_PAGE = 2,
387 LPROC_OSD_NO_PAGE = 3,
388 LPROC_OSD_CACHE_ACCESS = 4,
389 LPROC_OSD_CACHE_HIT = 5,
390 LPROC_OSD_CACHE_MISS = 6,
392 #if OSD_THANDLE_STATS
393 LPROC_OSD_THANDLE_STARTING,
394 LPROC_OSD_THANDLE_OPEN,
395 LPROC_OSD_THANDLE_CLOSING,
402 * Storage representation for fids.
404 * Variable size, first byte contains the length of the whole record.
406 struct osd_fid_pack {
407 unsigned char fp_len;
408 char fp_area[sizeof(struct lu_fid)];
411 struct osd_it_ea_dirent {
412 struct lu_fid oied_fid;
415 unsigned short oied_namelen;
416 unsigned int oied_type;
418 } __attribute__((packed));
421 * as osd_it_ea_dirent (in memory dirent struct for osd) is greater
422 * than lu_dirent struct. osd readdir reads less number of dirent than
423 * required for mdd dir page. so buffer size need to be increased so that
424 * there would be one ext3 readdir for every mdd readdir page.
427 #define OSD_IT_EA_BUFSIZE (CFS_PAGE_SIZE + CFS_PAGE_SIZE/4)
430 * This is iterator's in-memory data structure in interoperability
431 * mode (i.e. iterator over ldiskfs style directory)
434 struct osd_object *oie_obj;
435 /** used in ldiskfs iterator, to stored file pointer */
436 struct file oie_file;
437 /** how many entries have been read-cached from storage */
439 /** current entry is being iterated by caller */
441 /** current processing entry */
442 struct osd_it_ea_dirent *oie_dirent;
443 /** buffer to hold entries, size == OSD_IT_EA_BUFSIZE */
448 * Iterator's in-memory data structure for IAM mode.
451 struct osd_object *oi_obj;
452 struct iam_path_descr *oi_ipd;
453 struct iam_iterator oi_it;
456 struct osd_quota_leaf {
462 * Iterator's in-memory data structure for quota file.
464 struct osd_it_quota {
465 struct osd_object *oiq_obj;
466 /** tree blocks path to where the entry is stored */
467 uint oiq_blk[LUSTRE_DQTREEDEPTH + 1];
468 /** on-disk offset for current key where quota record can be found */
470 /** identifier for current quota record */
472 /** the record index in the leaf/index block */
473 uint oiq_index[LUSTRE_DQTREEDEPTH + 1];
474 /** list of already processed leaf blocks */
478 #define MAX_BLOCKS_PER_PAGE (CFS_PAGE_SIZE / 512)
482 cfs_atomic_t dr_numreqs; /* number of reqs being processed */
487 unsigned int dr_ignore_quota:1;
488 unsigned int dr_elapsed_valid:1; /* we really did count time */
489 unsigned int dr_rw:1;
490 struct page *dr_pages[PTLRPC_MAX_BRW_PAGES];
491 unsigned long dr_blocks[PTLRPC_MAX_BRW_PAGES*MAX_BLOCKS_PER_PAGE];
492 unsigned long dr_start_time;
493 unsigned long dr_elapsed; /* how long io took */
494 struct osd_device *dr_dev;
495 unsigned int dr_init_at; /* the line iobuf was initialized */
498 struct osd_thread_info {
499 const struct lu_env *oti_env;
501 * used for index operations.
503 struct dentry oti_obj_dentry;
504 struct dentry oti_child_dentry;
506 /** dentry for Iterator context. */
507 struct dentry oti_it_dentry;
508 struct htree_lock *oti_hlock;
510 struct lu_fid oti_fid;
511 struct lu_fid oti_fid2;
512 struct osd_inode_id oti_id;
513 struct osd_inode_id oti_id2;
514 struct ost_id oti_ostid;
517 * XXX temporary: for ->i_op calls.
519 struct timespec oti_time;
521 * XXX temporary: fake struct file for osd_object_sync
523 struct file oti_file;
525 * XXX temporary: for capa operations.
527 struct lustre_capa_key oti_capa_key;
528 struct lustre_capa oti_capa;
530 /** osd_device reference, initialized in osd_trans_start() and
531 used in osd_trans_stop() */
532 struct osd_device *oti_dev;
535 * following ipd and it structures are used for osd_index_iam_lookup()
536 * these are defined separately as we might do index operation
537 * in open iterator session.
540 /** osd iterator context used for iterator session */
543 struct osd_it_iam oti_it;
544 /* ldiskfs iterator data structure,
545 * see osd_it_ea_{init, fini} */
546 struct osd_it_ea oti_it_ea;
547 struct osd_it_quota oti_it_quota;
550 /** pre-allocated buffer used by oti_it_ea, size OSD_IT_EA_BUFSIZE */
553 cfs_kstatfs_t oti_ksfs;
555 /** IAM iterator for index operation. */
556 struct iam_iterator oti_idx_it;
558 /** union to guarantee that ->oti_ipd[] has proper alignment. */
560 char oti_it_ipd[DX_IPD_MAX_SIZE];
561 long long oti_alignment_lieutenant;
565 char oti_idx_ipd[DX_IPD_MAX_SIZE];
566 long long oti_alignment_lieutenant_colonel;
569 struct osd_idmap_cache oti_cache;
574 /** used in osd_fid_set() to put xattr */
575 struct lu_buf oti_buf;
576 /** used in osd_ea_fid_set() to set fid into common ea */
578 struct lustre_mdt_attrs oti_mdt_attrs;
579 /* old LMA for compatibility */
580 char oti_mdt_attrs_old[LMA_OLD_SIZE];
583 struct osd_iobuf oti_iobuf;
584 struct inode oti_inode;
585 int oti_created[PTLRPC_MAX_BRW_PAGES];
586 struct lu_env oti_obj_delete_tx_env;
587 #define OSD_FID_REC_SZ 32
588 char oti_ldp[OSD_FID_REC_SZ];
589 char oti_ldp2[OSD_FID_REC_SZ];
591 /* used by quota code */
593 struct if_dqblk oti_dqblk;
594 struct if_dqinfo oti_dqinfo;
596 struct lquota_id_info oti_qi;
597 struct lquota_trans oti_quota_trans;
598 union lquota_rec oti_quota_rec;
600 struct lu_seq_range oti_seq_range;
603 extern int ldiskfs_pdo;
607 void lprocfs_osd_init_vars(struct lprocfs_static_vars *lvars);
608 int osd_procfs_init(struct osd_device *osd, const char *name);
609 int osd_procfs_fini(struct osd_device *osd);
610 void osd_brw_stats_update(struct osd_device *osd, struct osd_iobuf *iobuf);
613 int osd_statfs(const struct lu_env *env, struct dt_device *dev,
614 struct obd_statfs *sfs);
615 int osd_object_auth(const struct lu_env *env, struct dt_object *dt,
616 struct lustre_capa *capa, __u64 opc);
617 struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
618 struct osd_inode_id *id);
619 struct inode *osd_iget_fid(struct osd_thread_info *info, struct osd_device *dev,
620 struct osd_inode_id *id, struct lu_fid *fid);
622 int osd_obj_map_init(struct osd_device *osd);
623 void osd_obj_map_fini(struct osd_device *dev);
624 int osd_obj_map_lookup(struct osd_thread_info *info, struct osd_device *osd,
625 const struct lu_fid *fid, struct osd_inode_id *id);
626 int osd_obj_map_insert(struct osd_thread_info *info, struct osd_device *osd,
627 const struct lu_fid *fid, const struct osd_inode_id *id,
629 int osd_obj_map_delete(struct osd_thread_info *info, struct osd_device *osd,
630 const struct lu_fid *fid, struct thandle *th);
631 int osd_obj_spec_lookup(struct osd_thread_info *info, struct osd_device *osd,
632 const struct lu_fid *fid, struct osd_inode_id *id);
633 int osd_obj_spec_insert(struct osd_thread_info *info, struct osd_device *osd,
634 const struct lu_fid *fid, const struct osd_inode_id *id,
637 void osd_scrub_file_reset(struct osd_scrub *scrub, __u8 *uuid, __u64 flags);
638 int osd_scrub_file_store(struct osd_scrub *scrub);
639 int osd_scrub_start(struct osd_device *dev);
640 int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev);
641 void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev);
642 int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
644 int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid,
645 struct osd_inode_id *id);
646 int osd_scrub_dump(struct osd_device *dev, char *buf, int len);
648 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
649 const struct lu_fid *fid, struct lu_seq_range *range);
650 /* osd_quota_fmt.c */
651 int walk_tree_dqentry(const struct lu_env *env, struct osd_object *obj,
652 int type, uint blk, int depth, uint index,
653 struct osd_it_quota *it);
654 int walk_block_dqentry(const struct lu_env *env, struct osd_object *obj,
655 int type, uint blk, uint index,
656 struct osd_it_quota *it);
657 loff_t find_tree_dqentry(const struct lu_env *env,
658 struct osd_object *obj, int type,
659 qid_t dqid, uint blk, int depth,
660 struct osd_it_quota *it);
662 int osd_declare_qid(const struct lu_env *env, struct osd_thandle *oh,
663 struct lquota_id_info *qi, bool allocated, int *flags);
664 int osd_declare_inode_qid(const struct lu_env *env, qid_t uid, qid_t gid,
665 long long space, struct osd_thandle *oh,
666 bool is_blk, bool allocated, int *flags, bool force);
667 const struct dt_rec *osd_quota_pack(struct osd_object *obj,
668 const struct dt_rec *rec,
669 union lquota_rec *quota_rec);
670 void osd_quota_unpack(struct osd_object *obj, const struct dt_rec *rec);
671 int osd_quota_migration(const struct lu_env *env, struct dt_object *dt,
672 const struct dt_index_features *feat);
674 static inline bool is_quota_glb_feat(const struct dt_index_features *feat)
676 return (feat == &dt_quota_iusr_features ||
677 feat == &dt_quota_busr_features ||
678 feat == &dt_quota_igrp_features ||
679 feat == &dt_quota_bgrp_features) ? true : false;
683 * Invariants, assertions.
687 * XXX: do not enable this, until invariant checking code is made thread safe
688 * in the face of pdirops locking.
690 #define OSD_INVARIANT_CHECKS (0)
692 #if OSD_INVARIANT_CHECKS
693 static inline int osd_invariant(const struct osd_object *obj)
697 ergo(obj->oo_inode != NULL,
698 obj->oo_inode->i_sb == osd_sb(osd_obj2dev(obj)) &&
699 atomic_read(&obj->oo_inode->i_count) > 0) &&
700 ergo(obj->oo_dir != NULL &&
701 obj->oo_dir->od_conationer.ic_object != NULL,
702 obj->oo_dir->od_conationer.ic_object == obj->oo_inode);
705 #define osd_invariant(obj) (1)
708 #define OSD_MAX_CACHE_SIZE OBD_OBJECT_EOF
710 extern const struct dt_index_operations osd_otable_ops;
712 static inline int osd_oi_fid2idx(struct osd_device *dev,
713 const struct lu_fid *fid)
715 return fid->f_seq & (dev->od_oi_count - 1);
718 static inline struct osd_oi *osd_fid2oi(struct osd_device *osd,
719 const struct lu_fid *fid)
721 LASSERTF(!fid_is_idif(fid), DFID"\n", PFID(fid));
722 LASSERTF(!fid_is_last_id(fid), DFID"\n", PFID(fid));
723 LASSERTF(!fid_is_igif(fid), DFID"\n", PFID(fid));
724 LASSERT(osd->od_oi_table != NULL && osd->od_oi_count >= 1);
725 /* It can work even od_oi_count equals to 1 although it's unexpected,
726 * the only reason we set it to 1 is for performance measurement */
727 return osd->od_oi_table[osd_oi_fid2idx(osd, fid)];
730 extern const struct lu_device_operations osd_lu_ops;
732 static inline int lu_device_is_osd(const struct lu_device *d)
734 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &osd_lu_ops);
737 static inline struct osd_device *osd_dt_dev(const struct dt_device *d)
739 LASSERT(lu_device_is_osd(&d->dd_lu_dev));
740 return container_of0(d, struct osd_device, od_dt_dev);
743 static inline struct osd_device *osd_dev(const struct lu_device *d)
745 LASSERT(lu_device_is_osd(d));
746 return osd_dt_dev(container_of0(d, struct dt_device, dd_lu_dev));
749 static inline struct osd_device *osd_obj2dev(const struct osd_object *o)
751 return osd_dev(o->oo_dt.do_lu.lo_dev);
754 static inline struct super_block *osd_sb(const struct osd_device *dev)
756 return dev->od_mnt->mnt_sb;
759 static inline int osd_object_is_root(const struct osd_object *obj)
761 return osd_sb(osd_obj2dev(obj))->s_root->d_inode == obj->oo_inode;
764 static inline struct osd_object *osd_obj(const struct lu_object *o)
766 LASSERT(lu_device_is_osd(o->lo_dev));
767 return container_of0(o, struct osd_object, oo_dt.do_lu);
770 static inline struct osd_object *osd_dt_obj(const struct dt_object *d)
772 return osd_obj(&d->do_lu);
775 static inline struct lu_device *osd2lu_dev(struct osd_device *osd)
777 return &osd->od_dt_dev.dd_lu_dev;
780 static inline journal_t *osd_journal(const struct osd_device *dev)
782 return LDISKFS_SB(osd_sb(dev))->s_journal;
785 static inline struct seq_server_site *osd_seq_site(struct osd_device *osd)
787 return osd->od_dt_dev.dd_lu_dev.ld_site->ld_seq_site;
790 static inline char *osd_name(struct osd_device *osd)
792 return osd->od_dt_dev.dd_lu_dev.ld_obd->obd_name;
796 extern const struct dt_body_operations osd_body_ops;
797 extern struct lu_context_key osd_key;
799 static inline struct osd_thread_info *osd_oti_get(const struct lu_env *env)
801 return lu_context_key_get(&env->le_ctx, &osd_key);
804 extern const struct dt_body_operations osd_body_ops_new;
810 struct iam_path_descr *osd_it_ipd_get(const struct lu_env *env,
811 const struct iam_container *bag)
813 return bag->ic_descr->id_ops->id_ipd_alloc(bag,
814 osd_oti_get(env)->oti_it_ipd);
818 struct iam_path_descr *osd_idx_ipd_get(const struct lu_env *env,
819 const struct iam_container *bag)
821 return bag->ic_descr->id_ops->id_ipd_alloc(bag,
822 osd_oti_get(env)->oti_idx_ipd);
825 static inline void osd_ipd_put(const struct lu_env *env,
826 const struct iam_container *bag,
827 struct iam_path_descr *ipd)
829 bag->ic_descr->id_ops->id_ipd_free(ipd);
832 int osd_ldiskfs_read(struct inode *inode, void *buf, int size, loff_t *offs);
833 int osd_ldiskfs_write_record(struct inode *inode, void *buf, int bufsize,
834 int write_NUL, loff_t *offs, handle_t *handle);
837 struct dentry *osd_child_dentry_by_inode(const struct lu_env *env,
839 const char *name, const int namelen)
841 struct osd_thread_info *info = osd_oti_get(env);
842 struct dentry *child_dentry = &info->oti_child_dentry;
843 struct dentry *obj_dentry = &info->oti_obj_dentry;
845 obj_dentry->d_inode = inode;
846 obj_dentry->d_sb = inode->i_sb;
847 obj_dentry->d_name.hash = 0;
849 child_dentry->d_name.hash = 0;
850 child_dentry->d_parent = obj_dentry;
851 child_dentry->d_name.name = name;
852 child_dentry->d_name.len = namelen;
857 * Helper function to pack the fid, ldiskfs stores fid in packed format.
860 void osd_fid_pack(struct osd_fid_pack *pack, const struct dt_rec *fid,
861 struct lu_fid *befider)
863 fid_cpu_to_be(befider, (struct lu_fid *)fid);
864 memcpy(pack->fp_area, befider, sizeof(*befider));
865 pack->fp_len = sizeof(*befider) + 1;
869 int osd_fid_unpack(struct lu_fid *fid, const struct osd_fid_pack *pack)
874 switch (pack->fp_len) {
875 case sizeof *fid + 1:
876 memcpy(fid, pack->fp_area, sizeof *fid);
877 fid_be_to_cpu(fid, fid);
880 CERROR("Unexpected packed fid size: %d\n", pack->fp_len);
887 * Quota/Accounting handling
889 extern const struct dt_index_operations osd_acct_index_ops;
890 int osd_acct_obj_lookup(struct osd_thread_info *info, struct osd_device *osd,
891 const struct lu_fid *fid, struct osd_inode_id *id);
893 /* copy from fs/ext4/dir.c */
894 static inline int is_32bit_api(void)
897 return is_compat_task();
899 return (BITS_PER_LONG == 32);
903 static inline loff_t ldiskfs_get_htree_eof(struct file *filp)
905 if ((filp->f_mode & FMODE_32BITHASH) ||
906 (!(filp->f_mode & FMODE_64BITHASH) && is_32bit_api()))
907 return LDISKFS_HTREE_EOF_32BIT;
909 return LDISKFS_HTREE_EOF_64BIT;
912 #endif /* __KERNEL__ */
913 #endif /* _OSD_INTERNAL_H */