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, Whamcloud, Inc.
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>
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 #ifdef HAVE_QUOTA_SUPPORT
96 cfs_kernel_cap_t oc_cap;
100 struct osd_directory {
101 struct iam_container od_container;
102 struct iam_descr od_descr;
106 * Object Index (oi) instance.
110 * underlying index object, where fid->id mapping in stored.
112 struct inode *oi_inode;
113 struct osd_directory oi_dir;
116 extern const int osd_dto_credits_noquota[];
119 struct dt_object oo_dt;
121 * Inode for file system object represented by this osd_object. This
122 * inode is pinned for the whole duration of lu_object life.
124 * Not modified concurrently (either setup early during object
125 * creation, or assigned by osd_object_create() under write lock).
127 struct inode *oo_inode;
129 * to protect index ops.
131 struct htree_lock_head *oo_hl_head;
132 cfs_rw_semaphore_t oo_ext_idx_sem;
133 cfs_rw_semaphore_t oo_sem;
134 struct osd_directory *oo_dir;
135 /** protects inode attributes. */
136 cfs_spinlock_t oo_guard;
138 * Following two members are used to indicate the presence of dot and
139 * dotdot in the given directory. This is required for interop mode
142 int oo_compat_dot_created;
143 int oo_compat_dotdot_created;
145 const struct lu_env *oo_owner;
146 #ifdef CONFIG_LOCKDEP
147 struct lockdep_map oo_dep_map;
151 #ifdef HAVE_LDISKFS_PDO
153 #define osd_ldiskfs_find_entry(dir, dentry, de, lock) \
154 ll_ldiskfs_find_entry(dir, dentry, de, lock)
155 #define osd_ldiskfs_add_entry(handle, child, cinode, hlock) \
156 ldiskfs_add_entry(handle, child, cinode, hlock)
158 #else /* HAVE_LDISKFS_PDO */
164 struct htree_lock_head {
168 #define ldiskfs_htree_lock(lock, head, inode, op) do { LBUG(); } while (0)
169 #define ldiskfs_htree_unlock(lock) do { LBUG(); } while (0)
171 static inline struct htree_lock_head *ldiskfs_htree_lock_head_alloc(int dep)
177 #define ldiskfs_htree_lock_head_free(lh) do { LBUG(); } while (0)
179 #define LDISKFS_DUMMY_HTREE_LOCK 0xbabecafe
181 static inline struct htree_lock *ldiskfs_htree_lock_alloc(void)
183 return (struct htree_lock *)LDISKFS_DUMMY_HTREE_LOCK;
186 static inline void ldiskfs_htree_lock_free(struct htree_lock *lk)
188 LASSERT((unsigned long)lk == LDISKFS_DUMMY_HTREE_LOCK);
191 #define HTREE_HBITS_DEF 0
193 #define osd_ldiskfs_find_entry(dir, dentry, de, lock) \
194 ll_ldiskfs_find_entry(dir, dentry, de)
195 #define osd_ldiskfs_add_entry(handle, child, cinode, lock) \
196 ldiskfs_add_entry(handle, child, cinode)
198 #endif /* HAVE_LDISKFS_PDO */
200 #define OSD_OTABLE_IT_CACHE_SIZE 128
201 #define OSD_OTABLE_IT_CACHE_MASK (~(OSD_OTABLE_IT_CACHE_SIZE - 1))
203 struct osd_inconsistent_item {
204 /* link into osd_scrub::os_inconsistent_items,
205 * protected by osd_scrub::os_lock. */
208 /* The right FID <=> ino#/gen mapping. */
209 struct osd_idmap_cache oii_cache;
211 unsigned int oii_insert:1; /* insert or update mapping. */
214 struct osd_otable_cache {
215 struct osd_idmap_cache ooc_cache[OSD_OTABLE_IT_CACHE_SIZE];
217 /* Index for next cache slot to be filled. */
218 int ooc_producer_idx;
220 /* Index for next cache slot to be returned by it::next(). */
221 int ooc_consumer_idx;
223 /* How many items in ooc_cache. */
224 int ooc_cached_items;
226 /* Position for up layer LFSCK iteration pre-loading. */
227 __u32 ooc_pos_preload;
230 struct osd_otable_it {
231 struct osd_device *ooi_dev;
232 struct osd_otable_cache ooi_cache;
234 /* For osd_otable_it_key. */
237 /* The following bits can be updated/checked w/o lock protection.
238 * If more bits will be introduced in the future and need lock to
239 * protect, please add comment. */
240 unsigned long ooi_used_outside:1, /* Some user out of OSD
241 * uses the iteration. */
242 ooi_all_cached:1, /* No more entries can be
243 * filled into cache. */
244 ooi_user_ready:1, /* The user out of OSD is
245 * ready to iterate. */
246 ooi_waiting:1; /* it::next is waiting. */
249 extern const int osd_dto_credits_noquota[];
256 struct dt_device od_dt_dev;
257 /* information about underlying file system */
258 struct lustre_mount_info *od_mount;
259 struct vfsmount *od_mnt;
261 struct osd_oi **od_oi_table;
262 /* total number of OI containers */
267 unsigned int od_fl_capa:1,
268 od_is_md:1; /* set in ->ldo_prepare */
269 unsigned long od_capa_timeout;
271 struct lustre_capa_key *od_capa_keys;
272 cfs_hlist_head_t *od_capa_hash;
274 cfs_proc_dir_entry_t *od_proc_entry;
275 struct lprocfs_stats *od_stats;
277 * statfs optimization: we cache a bit.
279 cfs_time_t od_osfs_age;
280 struct obd_statfs od_statfs;
281 cfs_spinlock_t od_osfs_lock;
284 * The following flag indicates, if it is interop mode or not.
285 * It will be initialized, using mount param.
289 struct fsfilt_operations *od_fsops;
292 * mapping for legacy OST objids
294 struct osd_compat_objid *od_ost_map;
296 unsigned long long od_readcache_max_filesize;
298 int od_writethrough_cache;
300 struct brw_stats od_brw_stats;
301 cfs_atomic_t od_r_in_flight;
302 cfs_atomic_t od_w_in_flight;
304 cfs_mutex_t od_otable_mutex;
305 struct osd_otable_it *od_otable_it;
306 struct osd_scrub od_scrub;
308 /* service name associated with the osd device */
309 char od_svname[MAX_OBD_NAME];
311 /* quota slave instance */
312 struct qsd_instance *od_quota_slave;
315 #define OSD_TRACK_DECLARES
316 #ifdef OSD_TRACK_DECLARES
317 #define OSD_DECLARE_OP(oh, op) { \
318 LASSERT(oh->ot_handle == NULL); \
319 ((oh)->ot_declare_ ##op)++; }
320 #define OSD_EXEC_OP(handle,op) { \
321 struct osd_thandle *oh; \
322 oh = container_of0(handle, struct osd_thandle, ot_super);\
323 if (((oh)->ot_declare_ ##op) > 0) { \
324 ((oh)->ot_declare_ ##op)--; \
328 #define OSD_DECLARE_OP(oh, op)
329 #define OSD_EXEC_OP(oh, op)
332 /* There are at most 10 uid/gids are affected in a transaction, and
333 * that's rename case:
334 * - 2 for source parent uid & gid;
335 * - 2 for source child uid & gid ('..' entry update when the child
337 * - 2 for target parent uid & gid;
338 * - 2 for target child uid & gid (if the target child exists);
339 * - 2 for root uid & gid (last_rcvd, llog, etc);
341 * The 0 to (OSD_MAX_UGID_CNT - 1) bits of ot_id_type is for indicating
342 * the id type of each id in the ot_id_array.
344 #define OSD_MAX_UGID_CNT 10
347 struct thandle ot_super;
349 struct journal_callback ot_jcb;
350 cfs_list_t ot_dcb_list;
351 /* Link to the device, for debugging. */
352 struct lu_ref_link *ot_dev_link;
353 unsigned short ot_credits;
354 unsigned short ot_id_cnt;
355 unsigned short ot_id_type;
356 uid_t ot_id_array[OSD_MAX_UGID_CNT];
358 #ifdef OSD_TRACK_DECLARES
359 unsigned char ot_declare_attr_set;
360 unsigned char ot_declare_punch;
361 unsigned char ot_declare_xattr_set;
362 unsigned char ot_declare_create;
363 unsigned char ot_declare_destroy;
364 unsigned char ot_declare_ref_add;
365 unsigned char ot_declare_ref_del;
366 unsigned char ot_declare_write;
367 unsigned char ot_declare_insert;
368 unsigned char ot_declare_delete;
371 #if OSD_THANDLE_STATS
372 /** time when this handle was allocated */
373 cfs_time_t oth_alloced;
375 /** time when this thanle was started */
376 cfs_time_t oth_started;
381 * Basic transaction credit op
391 DTO_LOG_REC, /**< XXX temporary: dt layer knows nothing about llog. */
405 LPROC_OSD_READ_BYTES = 0,
406 LPROC_OSD_WRITE_BYTES = 1,
407 LPROC_OSD_GET_PAGE = 2,
408 LPROC_OSD_NO_PAGE = 3,
409 LPROC_OSD_CACHE_ACCESS = 4,
410 LPROC_OSD_CACHE_HIT = 5,
411 LPROC_OSD_CACHE_MISS = 6,
413 #if OSD_THANDLE_STATS
414 LPROC_OSD_THANDLE_STARTING,
415 LPROC_OSD_THANDLE_OPEN,
416 LPROC_OSD_THANDLE_CLOSING,
423 * Storage representation for fids.
425 * Variable size, first byte contains the length of the whole record.
427 struct osd_fid_pack {
428 unsigned char fp_len;
429 char fp_area[sizeof(struct lu_fid)];
432 struct osd_it_ea_dirent {
433 struct lu_fid oied_fid;
436 unsigned short oied_namelen;
437 unsigned int oied_type;
439 } __attribute__((packed));
442 * as osd_it_ea_dirent (in memory dirent struct for osd) is greater
443 * than lu_dirent struct. osd readdir reads less number of dirent than
444 * required for mdd dir page. so buffer size need to be increased so that
445 * there would be one ext3 readdir for every mdd readdir page.
448 #define OSD_IT_EA_BUFSIZE (CFS_PAGE_SIZE + CFS_PAGE_SIZE/4)
451 * This is iterator's in-memory data structure in interoperability
452 * mode (i.e. iterator over ldiskfs style directory)
455 struct osd_object *oie_obj;
456 /** used in ldiskfs iterator, to stored file pointer */
457 struct file oie_file;
458 /** how many entries have been read-cached from storage */
460 /** current entry is being iterated by caller */
462 /** current processing entry */
463 struct osd_it_ea_dirent *oie_dirent;
464 /** buffer to hold entries, size == OSD_IT_EA_BUFSIZE */
469 * Iterator's in-memory data structure for IAM mode.
472 struct osd_object *oi_obj;
473 struct iam_path_descr *oi_ipd;
474 struct iam_iterator oi_it;
478 * Iterator's in-memory data structure for quota file.
480 struct osd_it_quota {
481 struct osd_object *oiq_obj;
482 /** tree blocks path to where the entry is stored */
483 uint oiq_blk[LUSTRE_DQTREEDEPTH];
484 /** on-disk offset for current key where quota record can be found */
486 /** identifier for current quota record */
490 #define MAX_BLOCKS_PER_PAGE (CFS_PAGE_SIZE / 512)
494 cfs_atomic_t dr_numreqs; /* number of reqs being processed */
499 unsigned int dr_ignore_quota:1;
500 unsigned int dr_elapsed_valid:1; /* we really did count time */
501 unsigned int dr_rw:1;
502 struct page *dr_pages[PTLRPC_MAX_BRW_PAGES];
503 unsigned long dr_blocks[PTLRPC_MAX_BRW_PAGES*MAX_BLOCKS_PER_PAGE];
504 unsigned long dr_start_time;
505 unsigned long dr_elapsed; /* how long io took */
506 struct osd_device *dr_dev;
509 struct osd_thread_info {
510 const struct lu_env *oti_env;
512 * used for index operations.
514 struct dentry oti_obj_dentry;
515 struct dentry oti_child_dentry;
517 /** dentry for Iterator context. */
518 struct dentry oti_it_dentry;
519 struct htree_lock *oti_hlock;
521 struct lu_fid oti_fid;
522 struct lu_fid oti_fid2;
523 struct osd_inode_id oti_id;
524 struct osd_inode_id oti_id2;
525 struct ost_id oti_ostid;
528 * XXX temporary: for ->i_op calls.
530 struct timespec oti_time;
532 * XXX temporary: fake struct file for osd_object_sync
534 struct file oti_file;
536 * XXX temporary: for capa operations.
538 struct lustre_capa_key oti_capa_key;
539 struct lustre_capa oti_capa;
541 /** osd_device reference, initialized in osd_trans_start() and
542 used in osd_trans_stop() */
543 struct osd_device *oti_dev;
546 * following ipd and it structures are used for osd_index_iam_lookup()
547 * these are defined separately as we might do index operation
548 * in open iterator session.
551 /** osd iterator context used for iterator session */
554 struct osd_it_iam oti_it;
555 /* ldiskfs iterator data structure,
556 * see osd_it_ea_{init, fini} */
557 struct osd_it_ea oti_it_ea;
558 struct osd_it_quota oti_it_quota;
561 /** pre-allocated buffer used by oti_it_ea, size OSD_IT_EA_BUFSIZE */
564 cfs_kstatfs_t oti_ksfs;
566 /** IAM iterator for index operation. */
567 struct iam_iterator oti_idx_it;
569 /** union to guarantee that ->oti_ipd[] has proper alignment. */
571 char oti_it_ipd[DX_IPD_MAX_SIZE];
572 long long oti_alignment_lieutenant;
576 char oti_idx_ipd[DX_IPD_MAX_SIZE];
577 long long oti_alignment_lieutenant_colonel;
580 struct osd_idmap_cache oti_cache;
585 /** used in osd_fid_set() to put xattr */
586 struct lu_buf oti_buf;
587 /** used in osd_ea_fid_set() to set fid into common ea */
588 struct lustre_mdt_attrs oti_mdt_attrs;
590 struct osd_iobuf oti_iobuf;
591 struct inode oti_inode;
592 int oti_created[PTLRPC_MAX_BRW_PAGES];
593 #ifdef HAVE_QUOTA_SUPPORT
594 struct osd_ctxt oti_ctxt;
596 struct lu_env oti_obj_delete_tx_env;
597 #define OSD_FID_REC_SZ 32
598 char oti_ldp[OSD_FID_REC_SZ];
599 char oti_ldp2[OSD_FID_REC_SZ];
601 /* used by quota code */
603 struct if_dqblk oti_dqblk;
604 struct if_dqinfo oti_dqinfo;
608 extern int ldiskfs_pdo;
612 void lprocfs_osd_init_vars(struct lprocfs_static_vars *lvars);
613 int osd_procfs_init(struct osd_device *osd, const char *name);
614 int osd_procfs_fini(struct osd_device *osd);
615 void osd_lprocfs_time_start(const struct lu_env *env);
616 void osd_lprocfs_time_end(const struct lu_env *env,
617 struct osd_device *osd, int op);
618 void osd_brw_stats_update(struct osd_device *osd, struct osd_iobuf *iobuf);
621 int osd_statfs(const struct lu_env *env, struct dt_device *dev,
622 struct obd_statfs *sfs);
623 int osd_object_auth(const struct lu_env *env, struct dt_object *dt,
624 struct lustre_capa *capa, __u64 opc);
625 void osd_declare_qid(struct dt_object *dt, struct osd_thandle *oh,
626 int type, uid_t id, struct inode *inode);
627 struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
628 struct osd_inode_id *id);
629 struct inode *osd_iget_fid(struct osd_thread_info *info, struct osd_device *dev,
630 struct osd_inode_id *id, struct lu_fid *fid);
632 int osd_compat_init(struct osd_device *dev);
633 void osd_compat_fini(struct osd_device *dev);
634 int osd_compat_objid_lookup(struct osd_thread_info *info,
635 struct osd_device *osd,
636 const struct lu_fid *fid, struct osd_inode_id *id);
637 int osd_compat_objid_insert(struct osd_thread_info *info,
638 struct osd_device *osd,
639 const struct lu_fid *fid,
640 const struct osd_inode_id *id, struct thandle *th);
641 int osd_compat_objid_delete(struct osd_thread_info *info,
642 struct osd_device *osd,
643 const struct lu_fid *fid, struct thandle *th);
644 int osd_compat_spec_lookup(struct osd_thread_info *info,
645 struct osd_device *osd,
646 const struct lu_fid *fid, struct osd_inode_id *id);
647 int osd_compat_spec_insert(struct osd_thread_info *info,
648 struct osd_device *osd,
649 const struct lu_fid *fid,
650 const struct osd_inode_id *id, struct thandle *th);
652 void osd_scrub_file_reset(struct osd_scrub *scrub, __u8 *uuid, __u64 flags);
653 int osd_scrub_file_store(struct osd_scrub *scrub);
654 int osd_scrub_start(struct osd_device *dev);
655 int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev);
656 void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev);
657 int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
659 int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid,
660 struct osd_inode_id *id);
661 int osd_scrub_dump(struct osd_device *dev, char *buf, int len);
663 /* osd_quota_fmt.c */
664 int walk_tree_dqentry(const struct lu_env *env, struct osd_object *obj,
665 int type, uint blk, int depth, uint index,
666 struct osd_it_quota *it);
667 int walk_block_dqentry(const struct lu_env *env, struct osd_object *obj,
668 int type, uint blk, uint index,
669 struct osd_it_quota *it);
670 loff_t find_tree_dqentry(const struct lu_env *env,
671 struct osd_object *obj, int type,
672 qid_t dqid, uint blk, int depth,
673 struct osd_it_quota *it);
675 * Invariants, assertions.
679 * XXX: do not enable this, until invariant checking code is made thread safe
680 * in the face of pdirops locking.
682 #define OSD_INVARIANT_CHECKS (0)
684 #if OSD_INVARIANT_CHECKS
685 static inline int osd_invariant(const struct osd_object *obj)
689 ergo(obj->oo_inode != NULL,
690 obj->oo_inode->i_sb == osd_sb(osd_obj2dev(obj)) &&
691 atomic_read(&obj->oo_inode->i_count) > 0) &&
692 ergo(obj->oo_dir != NULL &&
693 obj->oo_dir->od_conationer.ic_object != NULL,
694 obj->oo_dir->od_conationer.ic_object == obj->oo_inode);
697 #define osd_invariant(obj) (1)
700 extern const struct dt_index_operations osd_otable_ops;
702 static inline int osd_oi_fid2idx(struct osd_device *dev,
703 const struct lu_fid *fid)
705 return fid->f_seq & (dev->od_oi_count - 1);
708 static inline struct osd_oi *osd_fid2oi(struct osd_device *osd,
709 const struct lu_fid *fid)
711 LASSERTF(!fid_is_idif(fid), DFID"\n", PFID(fid));
712 LASSERTF(!fid_is_igif(fid), DFID"\n", PFID(fid));
713 LASSERT(osd->od_oi_table != NULL && osd->od_oi_count >= 1);
714 /* It can work even od_oi_count equals to 1 although it's unexpected,
715 * the only reason we set it to 1 is for performance measurement */
716 return osd->od_oi_table[osd_oi_fid2idx(osd, fid)];
719 extern const struct lu_device_operations osd_lu_ops;
721 static inline int lu_device_is_osd(const struct lu_device *d)
723 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &osd_lu_ops);
726 static inline struct osd_device *osd_dt_dev(const struct dt_device *d)
728 LASSERT(lu_device_is_osd(&d->dd_lu_dev));
729 return container_of0(d, struct osd_device, od_dt_dev);
732 static inline struct osd_device *osd_dev(const struct lu_device *d)
734 LASSERT(lu_device_is_osd(d));
735 return osd_dt_dev(container_of0(d, struct dt_device, dd_lu_dev));
738 static inline struct osd_device *osd_obj2dev(const struct osd_object *o)
740 return osd_dev(o->oo_dt.do_lu.lo_dev);
743 static inline struct super_block *osd_sb(const struct osd_device *dev)
745 return dev->od_mount->lmi_mnt->mnt_sb;
748 static inline int osd_object_is_root(const struct osd_object *obj)
750 return osd_sb(osd_obj2dev(obj))->s_root->d_inode == obj->oo_inode;
753 static inline struct osd_object *osd_obj(const struct lu_object *o)
755 LASSERT(lu_device_is_osd(o->lo_dev));
756 return container_of0(o, struct osd_object, oo_dt.do_lu);
759 static inline struct osd_object *osd_dt_obj(const struct dt_object *d)
761 return osd_obj(&d->do_lu);
764 static inline struct lu_device *osd2lu_dev(struct osd_device *osd)
766 return &osd->od_dt_dev.dd_lu_dev;
769 static inline journal_t *osd_journal(const struct osd_device *dev)
771 return LDISKFS_SB(osd_sb(dev))->s_journal;
774 extern const struct dt_body_operations osd_body_ops;
775 extern struct lu_context_key osd_key;
777 static inline struct osd_thread_info *osd_oti_get(const struct lu_env *env)
779 return lu_context_key_get(&env->le_ctx, &osd_key);
782 extern const struct dt_body_operations osd_body_ops_new;
788 struct iam_path_descr *osd_it_ipd_get(const struct lu_env *env,
789 const struct iam_container *bag)
791 return bag->ic_descr->id_ops->id_ipd_alloc(bag,
792 osd_oti_get(env)->oti_it_ipd);
796 struct iam_path_descr *osd_idx_ipd_get(const struct lu_env *env,
797 const struct iam_container *bag)
799 return bag->ic_descr->id_ops->id_ipd_alloc(bag,
800 osd_oti_get(env)->oti_idx_ipd);
803 static inline void osd_ipd_put(const struct lu_env *env,
804 const struct iam_container *bag,
805 struct iam_path_descr *ipd)
807 bag->ic_descr->id_ops->id_ipd_free(ipd);
810 int osd_ldiskfs_read(struct inode *inode, void *buf, int size, loff_t *offs);
811 int osd_ldiskfs_write_record(struct inode *inode, void *buf, int bufsize,
812 int write_NUL, loff_t *offs, handle_t *handle);
815 struct dentry *osd_child_dentry_by_inode(const struct lu_env *env,
817 const char *name, const int namelen)
819 struct osd_thread_info *info = osd_oti_get(env);
820 struct dentry *child_dentry = &info->oti_child_dentry;
821 struct dentry *obj_dentry = &info->oti_obj_dentry;
823 obj_dentry->d_inode = inode;
824 obj_dentry->d_sb = inode->i_sb;
825 obj_dentry->d_name.hash = 0;
827 child_dentry->d_name.hash = 0;
828 child_dentry->d_parent = obj_dentry;
829 child_dentry->d_name.name = name;
830 child_dentry->d_name.len = namelen;
835 * Helper function to pack the fid, ldiskfs stores fid in packed format.
838 void osd_fid_pack(struct osd_fid_pack *pack, const struct dt_rec *fid,
839 struct lu_fid *befider)
841 fid_cpu_to_be(befider, (struct lu_fid *)fid);
842 memcpy(pack->fp_area, befider, sizeof(*befider));
843 pack->fp_len = sizeof(*befider) + 1;
847 int osd_fid_unpack(struct lu_fid *fid, const struct osd_fid_pack *pack)
852 switch (pack->fp_len) {
853 case sizeof *fid + 1:
854 memcpy(fid, pack->fp_area, sizeof *fid);
855 fid_be_to_cpu(fid, fid);
858 CERROR("Unexpected packed fid size: %d\n", pack->fp_len);
865 * Quota/Accounting handling
867 extern const struct dt_index_operations osd_acct_index_ops;
868 int osd_acct_obj_lookup(struct osd_thread_info *info, struct osd_device *osd,
869 const struct lu_fid *fid, struct osd_inode_id *id);
871 /* copy from fs/ext4/dir.c */
872 static inline int is_32bit_api(void)
875 return is_compat_task();
877 return (BITS_PER_LONG == 32);
881 static inline loff_t ldiskfs_get_htree_eof(struct file *filp)
883 if ((filp->f_mode & FMODE_32BITHASH) ||
884 (!(filp->f_mode & FMODE_64BITHASH) && is_32bit_api()))
885 return LDISKFS_HTREE_EOF_32BIT;
887 return LDISKFS_HTREE_EOF_64BIT;
890 #endif /* __KERNEL__ */
891 #endif /* _OSD_INTERNAL_H */