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 /* There are at most 10 uid/gids are affected in a transaction, and
276 * that's rename case:
277 * - 2 for source parent uid & gid;
278 * - 2 for source child uid & gid ('..' entry update when child is directory);
279 * - 2 for target parent uid & gid;
280 * - 2 for target child uid & gid (if the target child exists);
281 * - 2 for root uid & gid (last_rcvd, llog, etc);
283 * The 0 to (OSD_MAX_UGID_CNT - 1) bits of ot_id_type is for indicating
284 * the id type of each id in the ot_id_array.
286 #define OSD_MAX_UGID_CNT 10
291 OSD_OT_XATTR_SET = 2,
303 #define OSD_TRACK_DECLARES
306 struct thandle ot_super;
308 struct journal_callback ot_jcb;
309 cfs_list_t ot_dcb_list;
310 /* Link to the device, for debugging. */
311 struct lu_ref_link *ot_dev_link;
312 unsigned short ot_credits;
313 unsigned short ot_id_cnt;
314 unsigned short ot_id_type;
315 uid_t ot_id_array[OSD_MAX_UGID_CNT];
316 struct lquota_trans *ot_quota_trans;
317 #if OSD_THANDLE_STATS
318 /** time when this handle was allocated */
319 cfs_time_t oth_alloced;
321 /** time when this thanle was started */
322 cfs_time_t oth_started;
327 * Basic transaction credit op
337 DTO_LOG_REC, /**< XXX temporary: dt layer knows nothing about llog. */
351 LPROC_OSD_READ_BYTES = 0,
352 LPROC_OSD_WRITE_BYTES = 1,
353 LPROC_OSD_GET_PAGE = 2,
354 LPROC_OSD_NO_PAGE = 3,
355 LPROC_OSD_CACHE_ACCESS = 4,
356 LPROC_OSD_CACHE_HIT = 5,
357 LPROC_OSD_CACHE_MISS = 6,
359 #if OSD_THANDLE_STATS
360 LPROC_OSD_THANDLE_STARTING,
361 LPROC_OSD_THANDLE_OPEN,
362 LPROC_OSD_THANDLE_CLOSING,
369 * Storage representation for fids.
371 * Variable size, first byte contains the length of the whole record.
373 struct osd_fid_pack {
374 unsigned char fp_len;
375 char fp_area[sizeof(struct lu_fid)];
378 struct osd_it_ea_dirent {
379 struct lu_fid oied_fid;
382 unsigned short oied_namelen;
383 unsigned int oied_type;
385 } __attribute__((packed));
388 * as osd_it_ea_dirent (in memory dirent struct for osd) is greater
389 * than lu_dirent struct. osd readdir reads less number of dirent than
390 * required for mdd dir page. so buffer size need to be increased so that
391 * there would be one ext3 readdir for every mdd readdir page.
394 #define OSD_IT_EA_BUFSIZE (CFS_PAGE_SIZE + CFS_PAGE_SIZE/4)
397 * This is iterator's in-memory data structure in interoperability
398 * mode (i.e. iterator over ldiskfs style directory)
401 struct osd_object *oie_obj;
402 /** used in ldiskfs iterator, to stored file pointer */
403 struct file oie_file;
404 /** how many entries have been read-cached from storage */
406 /** current entry is being iterated by caller */
408 /** current processing entry */
409 struct osd_it_ea_dirent *oie_dirent;
410 /** buffer to hold entries, size == OSD_IT_EA_BUFSIZE */
415 * Iterator's in-memory data structure for IAM mode.
418 struct osd_object *oi_obj;
419 struct iam_path_descr *oi_ipd;
420 struct iam_iterator oi_it;
423 struct osd_quota_leaf {
429 * Iterator's in-memory data structure for quota file.
431 struct osd_it_quota {
432 struct osd_object *oiq_obj;
433 /** tree blocks path to where the entry is stored */
434 uint oiq_blk[LUSTRE_DQTREEDEPTH + 1];
435 /** on-disk offset for current key where quota record can be found */
437 /** identifier for current quota record */
439 /** the record index in the leaf/index block */
440 uint oiq_index[LUSTRE_DQTREEDEPTH + 1];
441 /** list of already processed leaf blocks */
445 #define MAX_BLOCKS_PER_PAGE (CFS_PAGE_SIZE / 512)
449 cfs_atomic_t dr_numreqs; /* number of reqs being processed */
454 unsigned int dr_ignore_quota:1;
455 unsigned int dr_elapsed_valid:1; /* we really did count time */
456 unsigned int dr_rw:1;
457 struct page *dr_pages[PTLRPC_MAX_BRW_PAGES];
458 unsigned long dr_blocks[PTLRPC_MAX_BRW_PAGES*MAX_BLOCKS_PER_PAGE];
459 unsigned long dr_start_time;
460 unsigned long dr_elapsed; /* how long io took */
461 struct osd_device *dr_dev;
462 unsigned int dr_init_at; /* the line iobuf was initialized */
465 struct osd_thread_info {
466 const struct lu_env *oti_env;
468 * used for index operations.
470 struct dentry oti_obj_dentry;
471 struct dentry oti_child_dentry;
473 /** dentry for Iterator context. */
474 struct dentry oti_it_dentry;
475 struct htree_lock *oti_hlock;
477 struct lu_fid oti_fid;
478 struct lu_fid oti_fid2;
479 struct osd_inode_id oti_id;
480 struct osd_inode_id oti_id2;
481 struct ost_id oti_ostid;
484 * XXX temporary: for ->i_op calls.
486 struct timespec oti_time;
488 * XXX temporary: fake struct file for osd_object_sync
490 struct file oti_file;
492 * XXX temporary: for capa operations.
494 struct lustre_capa_key oti_capa_key;
495 struct lustre_capa oti_capa;
497 /** osd_device reference, initialized in osd_trans_start() and
498 used in osd_trans_stop() */
499 struct osd_device *oti_dev;
502 * following ipd and it structures are used for osd_index_iam_lookup()
503 * these are defined separately as we might do index operation
504 * in open iterator session.
507 /** osd iterator context used for iterator session */
510 struct osd_it_iam oti_it;
511 /* ldiskfs iterator data structure,
512 * see osd_it_ea_{init, fini} */
513 struct osd_it_ea oti_it_ea;
514 struct osd_it_quota oti_it_quota;
517 /** pre-allocated buffer used by oti_it_ea, size OSD_IT_EA_BUFSIZE */
520 cfs_kstatfs_t oti_ksfs;
522 /** IAM iterator for index operation. */
523 struct iam_iterator oti_idx_it;
525 /** union to guarantee that ->oti_ipd[] has proper alignment. */
527 char oti_it_ipd[DX_IPD_MAX_SIZE];
528 long long oti_alignment_lieutenant;
532 char oti_idx_ipd[DX_IPD_MAX_SIZE];
533 long long oti_alignment_lieutenant_colonel;
536 struct osd_idmap_cache oti_cache;
541 /** used in osd_fid_set() to put xattr */
542 struct lu_buf oti_buf;
543 /** used in osd_ea_fid_set() to set fid into common ea */
545 struct lustre_mdt_attrs oti_mdt_attrs;
546 /* old LMA for compatibility */
547 char oti_mdt_attrs_old[LMA_OLD_SIZE];
550 struct osd_iobuf oti_iobuf;
551 struct inode oti_inode;
552 int oti_created[PTLRPC_MAX_BRW_PAGES];
553 struct lu_env oti_obj_delete_tx_env;
554 #define OSD_FID_REC_SZ 32
555 char oti_ldp[OSD_FID_REC_SZ];
556 char oti_ldp2[OSD_FID_REC_SZ];
558 /* used by quota code */
560 struct if_dqblk oti_dqblk;
561 struct if_dqinfo oti_dqinfo;
563 struct lquota_id_info oti_qi;
564 struct lquota_trans oti_quota_trans;
565 union lquota_rec oti_quota_rec;
567 struct lu_seq_range oti_seq_range;
569 #ifdef OSD_TRACK_DECLARES
570 /* Tracking for transaction credits, to allow debugging and optimizing
571 * cases where a large number of credits are being allocated for
572 * single transaction. */
573 unsigned char oti_declare_ops[OSD_OT_MAX];
574 unsigned char oti_declare_ops_rb[OSD_OT_MAX];
575 unsigned short oti_declare_ops_cred[OSD_OT_MAX];
581 extern int ldiskfs_pdo;
585 void lprocfs_osd_init_vars(struct lprocfs_static_vars *lvars);
586 int osd_procfs_init(struct osd_device *osd, const char *name);
587 int osd_procfs_fini(struct osd_device *osd);
588 void osd_brw_stats_update(struct osd_device *osd, struct osd_iobuf *iobuf);
591 int osd_statfs(const struct lu_env *env, struct dt_device *dev,
592 struct obd_statfs *sfs);
593 int osd_object_auth(const struct lu_env *env, struct dt_object *dt,
594 struct lustre_capa *capa, __u64 opc);
595 struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
596 struct osd_inode_id *id);
597 struct inode *osd_iget_fid(struct osd_thread_info *info, struct osd_device *dev,
598 struct osd_inode_id *id, struct lu_fid *fid);
600 int osd_obj_map_init(struct osd_device *osd);
601 void osd_obj_map_fini(struct osd_device *dev);
602 int osd_obj_map_lookup(struct osd_thread_info *info, struct osd_device *osd,
603 const struct lu_fid *fid, struct osd_inode_id *id);
604 int osd_obj_map_insert(struct osd_thread_info *info, struct osd_device *osd,
605 const struct lu_fid *fid, const struct osd_inode_id *id,
607 int osd_obj_map_delete(struct osd_thread_info *info, struct osd_device *osd,
608 const struct lu_fid *fid, struct thandle *th);
609 int osd_obj_spec_lookup(struct osd_thread_info *info, struct osd_device *osd,
610 const struct lu_fid *fid, struct osd_inode_id *id);
611 int osd_obj_spec_insert(struct osd_thread_info *info, struct osd_device *osd,
612 const struct lu_fid *fid, const struct osd_inode_id *id,
615 void osd_scrub_file_reset(struct osd_scrub *scrub, __u8 *uuid, __u64 flags);
616 int osd_scrub_file_store(struct osd_scrub *scrub);
617 int osd_scrub_start(struct osd_device *dev);
618 int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev);
619 void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev);
620 int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
622 int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid,
623 struct osd_inode_id *id);
624 int osd_scrub_dump(struct osd_device *dev, char *buf, int len);
626 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
627 const struct lu_fid *fid, struct lu_seq_range *range);
628 /* osd_quota_fmt.c */
629 int walk_tree_dqentry(const struct lu_env *env, struct osd_object *obj,
630 int type, uint blk, int depth, uint index,
631 struct osd_it_quota *it);
632 int walk_block_dqentry(const struct lu_env *env, struct osd_object *obj,
633 int type, uint blk, uint index,
634 struct osd_it_quota *it);
635 loff_t find_tree_dqentry(const struct lu_env *env,
636 struct osd_object *obj, int type,
637 qid_t dqid, uint blk, int depth,
638 struct osd_it_quota *it);
640 int osd_declare_qid(const struct lu_env *env, struct osd_thandle *oh,
641 struct lquota_id_info *qi, bool allocated, int *flags);
642 int osd_declare_inode_qid(const struct lu_env *env, qid_t uid, qid_t gid,
643 long long space, struct osd_thandle *oh,
644 bool is_blk, bool allocated, int *flags, bool force);
645 const struct dt_rec *osd_quota_pack(struct osd_object *obj,
646 const struct dt_rec *rec,
647 union lquota_rec *quota_rec);
648 void osd_quota_unpack(struct osd_object *obj, const struct dt_rec *rec);
649 int osd_quota_migration(const struct lu_env *env, struct dt_object *dt,
650 const struct dt_index_features *feat);
652 static inline bool is_quota_glb_feat(const struct dt_index_features *feat)
654 return (feat == &dt_quota_iusr_features ||
655 feat == &dt_quota_busr_features ||
656 feat == &dt_quota_igrp_features ||
657 feat == &dt_quota_bgrp_features) ? true : false;
661 * Invariants, assertions.
665 * XXX: do not enable this, until invariant checking code is made thread safe
666 * in the face of pdirops locking.
668 #define OSD_INVARIANT_CHECKS (0)
670 #if OSD_INVARIANT_CHECKS
671 static inline int osd_invariant(const struct osd_object *obj)
675 ergo(obj->oo_inode != NULL,
676 obj->oo_inode->i_sb == osd_sb(osd_obj2dev(obj)) &&
677 atomic_read(&obj->oo_inode->i_count) > 0) &&
678 ergo(obj->oo_dir != NULL &&
679 obj->oo_dir->od_conationer.ic_object != NULL,
680 obj->oo_dir->od_conationer.ic_object == obj->oo_inode);
683 #define osd_invariant(obj) (1)
686 #define OSD_MAX_CACHE_SIZE OBD_OBJECT_EOF
688 extern const struct dt_index_operations osd_otable_ops;
690 static inline int osd_oi_fid2idx(struct osd_device *dev,
691 const struct lu_fid *fid)
693 return fid->f_seq & (dev->od_oi_count - 1);
696 static inline struct osd_oi *osd_fid2oi(struct osd_device *osd,
697 const struct lu_fid *fid)
699 LASSERTF(!fid_is_idif(fid), DFID"\n", PFID(fid));
700 LASSERTF(!fid_is_last_id(fid), DFID"\n", PFID(fid));
701 LASSERT(osd->od_oi_table != NULL && osd->od_oi_count >= 1);
702 /* It can work even od_oi_count equals to 1 although it's unexpected,
703 * the only reason we set it to 1 is for performance measurement */
704 return osd->od_oi_table[osd_oi_fid2idx(osd, fid)];
707 extern const struct lu_device_operations osd_lu_ops;
709 static inline int lu_device_is_osd(const struct lu_device *d)
711 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &osd_lu_ops);
714 static inline struct osd_device *osd_dt_dev(const struct dt_device *d)
716 LASSERT(lu_device_is_osd(&d->dd_lu_dev));
717 return container_of0(d, struct osd_device, od_dt_dev);
720 static inline struct osd_device *osd_dev(const struct lu_device *d)
722 LASSERT(lu_device_is_osd(d));
723 return osd_dt_dev(container_of0(d, struct dt_device, dd_lu_dev));
726 static inline struct osd_device *osd_obj2dev(const struct osd_object *o)
728 return osd_dev(o->oo_dt.do_lu.lo_dev);
731 static inline struct super_block *osd_sb(const struct osd_device *dev)
733 return dev->od_mnt->mnt_sb;
736 static inline int osd_object_is_root(const struct osd_object *obj)
738 return osd_sb(osd_obj2dev(obj))->s_root->d_inode == obj->oo_inode;
741 static inline struct osd_object *osd_obj(const struct lu_object *o)
743 LASSERT(lu_device_is_osd(o->lo_dev));
744 return container_of0(o, struct osd_object, oo_dt.do_lu);
747 static inline struct osd_object *osd_dt_obj(const struct dt_object *d)
749 return osd_obj(&d->do_lu);
752 static inline struct lu_device *osd2lu_dev(struct osd_device *osd)
754 return &osd->od_dt_dev.dd_lu_dev;
757 static inline journal_t *osd_journal(const struct osd_device *dev)
759 return LDISKFS_SB(osd_sb(dev))->s_journal;
762 static inline struct seq_server_site *osd_seq_site(struct osd_device *osd)
764 return osd->od_dt_dev.dd_lu_dev.ld_site->ld_seq_site;
767 static inline char *osd_name(struct osd_device *osd)
769 return osd->od_dt_dev.dd_lu_dev.ld_obd->obd_name;
773 extern const struct dt_body_operations osd_body_ops;
774 extern struct lu_context_key osd_key;
776 static inline struct osd_thread_info *osd_oti_get(const struct lu_env *env)
778 return lu_context_key_get(&env->le_ctx, &osd_key);
781 extern const struct dt_body_operations osd_body_ops_new;
787 struct iam_path_descr *osd_it_ipd_get(const struct lu_env *env,
788 const struct iam_container *bag)
790 return bag->ic_descr->id_ops->id_ipd_alloc(bag,
791 osd_oti_get(env)->oti_it_ipd);
795 struct iam_path_descr *osd_idx_ipd_get(const struct lu_env *env,
796 const struct iam_container *bag)
798 return bag->ic_descr->id_ops->id_ipd_alloc(bag,
799 osd_oti_get(env)->oti_idx_ipd);
802 static inline void osd_ipd_put(const struct lu_env *env,
803 const struct iam_container *bag,
804 struct iam_path_descr *ipd)
806 bag->ic_descr->id_ops->id_ipd_free(ipd);
809 int osd_ldiskfs_read(struct inode *inode, void *buf, int size, loff_t *offs);
810 int osd_ldiskfs_write_record(struct inode *inode, void *buf, int bufsize,
811 int write_NUL, loff_t *offs, handle_t *handle);
814 struct dentry *osd_child_dentry_by_inode(const struct lu_env *env,
816 const char *name, const int namelen)
818 struct osd_thread_info *info = osd_oti_get(env);
819 struct dentry *child_dentry = &info->oti_child_dentry;
820 struct dentry *obj_dentry = &info->oti_obj_dentry;
822 obj_dentry->d_inode = inode;
823 obj_dentry->d_sb = inode->i_sb;
824 obj_dentry->d_name.hash = 0;
826 child_dentry->d_name.hash = 0;
827 child_dentry->d_parent = obj_dentry;
828 child_dentry->d_name.name = name;
829 child_dentry->d_name.len = namelen;
833 #ifdef OSD_TRACK_DECLARES
834 extern int osd_trans_declare_op2rb[];
836 static inline void osd_trans_declare_op(const struct lu_env *env,
837 struct osd_thandle *oh,
838 unsigned int op, int credits)
840 struct osd_thread_info *oti = osd_oti_get(env);
842 LASSERT(oh->ot_handle == NULL);
843 LASSERT(op < OSD_OT_MAX);
845 oti->oti_declare_ops[op]++;
846 oti->oti_declare_ops_cred[op] += credits;
847 oh->ot_credits += credits;
850 static inline void osd_trans_exec_op(const struct lu_env *env,
851 struct thandle *th, unsigned int op)
853 struct osd_thread_info *oti = osd_oti_get(env);
854 struct osd_thandle *oh = container_of(th, struct osd_thandle,
858 LASSERT(oh->ot_handle != NULL);
859 LASSERT(op < OSD_OT_MAX);
861 if (likely(!oti->oti_rollback && oti->oti_declare_ops[op] > 0)) {
862 oti->oti_declare_ops[op]--;
863 oti->oti_declare_ops_rb[op]++;
865 /* all future updates are considered rollback */
866 oti->oti_rollback = true;
867 rb = osd_trans_declare_op2rb[op];
868 LASSERTF(rb < OSD_OT_MAX, "op = %u\n", op);
869 LASSERTF(oti->oti_declare_ops_rb[rb] > 0, "rb = %u\n", rb);
870 oti->oti_declare_ops_rb[rb]--;
874 static inline void osd_trans_declare_rb(const struct lu_env *env,
875 struct thandle *th, unsigned int op)
877 struct osd_thread_info *oti = osd_oti_get(env);
878 struct osd_thandle *oh = container_of(th, struct osd_thandle,
881 LASSERT(oh->ot_handle != NULL);
882 LASSERT(op < OSD_OT_MAX);
884 oti->oti_declare_ops_rb[op]++;
887 static inline void osd_trans_declare_op(const struct lu_env *env,
888 struct osd_thandle *oh,
889 unsigned int op, int credits)
891 oh->ot_credits += credits;
894 static inline void osd_trans_exec_op(const struct lu_env *env,
895 struct thandle *th, unsigned int op)
899 static inline void osd_trans_declare_rb(const struct lu_env *env,
900 struct thandle *th, unsigned int op)
906 * Helper function to pack the fid, ldiskfs stores fid in packed format.
909 void osd_fid_pack(struct osd_fid_pack *pack, const struct dt_rec *fid,
910 struct lu_fid *befider)
912 fid_cpu_to_be(befider, (struct lu_fid *)fid);
913 memcpy(pack->fp_area, befider, sizeof(*befider));
914 pack->fp_len = sizeof(*befider) + 1;
918 int osd_fid_unpack(struct lu_fid *fid, const struct osd_fid_pack *pack)
923 switch (pack->fp_len) {
924 case sizeof *fid + 1:
925 memcpy(fid, pack->fp_area, sizeof *fid);
926 fid_be_to_cpu(fid, fid);
929 CERROR("Unexpected packed fid size: %d\n", pack->fp_len);
936 * Quota/Accounting handling
938 extern const struct dt_index_operations osd_acct_index_ops;
939 int osd_acct_obj_lookup(struct osd_thread_info *info, struct osd_device *osd,
940 const struct lu_fid *fid, struct osd_inode_id *id);
942 /* copy from fs/ext4/dir.c */
943 static inline int is_32bit_api(void)
946 return is_compat_task();
948 return (BITS_PER_LONG == 32);
952 static inline loff_t ldiskfs_get_htree_eof(struct file *filp)
954 if ((filp->f_mode & FMODE_32BITHASH) ||
955 (!(filp->f_mode & FMODE_64BITHASH) && is_32bit_api()))
956 return LDISKFS_HTREE_EOF_32BIT;
958 return LDISKFS_HTREE_EOF_64BIT;
961 #endif /* __KERNEL__ */
962 #endif /* _OSD_INTERNAL_H */