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 /* ldiskfs special inode::i_state_flags need to be accessed with
87 * ldiskfs_{set,clear,test}_inode_state() only */
89 /* OI scrub should skip this inode. */
90 #define LDISKFS_STATE_LUSTRE_NOSCRUB 31
92 /* Do not add OI mapping for this inode. */
93 #define LDISKFS_STATE_LUSTRE_NO_OI 30
95 /** Enable thandle usage statistics */
96 #define OSD_THANDLE_STATS (0)
98 #define MAX_OBJID_GROUP (FID_SEQ_ECHO + 1)
100 #define OBJECTS "OBJECTS"
101 #define ADMIN_USR "admin_quotafile_v2.usr"
102 #define ADMIN_GRP "admin_quotafile_v2.grp"
104 struct osd_directory {
105 struct iam_container od_container;
106 struct iam_descr od_descr;
110 * Object Index (oi) instance.
114 * underlying index object, where fid->id mapping in stored.
116 struct inode *oi_inode;
117 struct osd_directory oi_dir;
120 extern const int osd_dto_credits_noquota[];
123 struct dt_object oo_dt;
125 * Inode for file system object represented by this osd_object. This
126 * inode is pinned for the whole duration of lu_object life.
128 * Not modified concurrently (either setup early during object
129 * creation, or assigned by osd_object_create() under write lock).
131 struct inode *oo_inode;
133 * to protect index ops.
135 struct htree_lock_head *oo_hl_head;
136 struct rw_semaphore oo_ext_idx_sem;
137 struct rw_semaphore oo_sem;
138 struct osd_directory *oo_dir;
139 /** protects inode attributes. */
142 * Following two members are used to indicate the presence of dot and
143 * dotdot in the given directory. This is required for interop mode
146 int oo_compat_dot_created;
147 int oo_compat_dotdot_created;
149 const struct lu_env *oo_owner;
150 #ifdef CONFIG_LOCKDEP
151 struct lockdep_map oo_dep_map;
156 /* protects on-fly initialization */
157 int oos_subdir_count; /* subdir count for each seq */
158 struct dentry *oos_root; /* O/<seq> */
159 struct dentry **oos_dirs; /* O/<seq>/d0-dXX */
160 obd_seq oos_seq; /* seq number */
161 cfs_list_t oos_seq_list; /* list to seq_list */
165 struct dentry *om_root; /* dentry for /O */
166 rwlock_t om_seq_list_lock; /* lock for seq_list */
167 cfs_list_t om_seq_list; /* list head for seq */
169 struct semaphore om_dir_init_sem;
173 struct dentry *om_root; /* AGENT/<index> */
174 obd_seq om_index; /* mdt index */
175 cfs_list_t om_list; /* list to omm_list */
178 struct osd_mdobj_map {
179 struct dentry *omm_agent_dentry;
182 #define osd_ldiskfs_find_entry(dir, dentry, de, lock) \
183 ll_ldiskfs_find_entry(dir, dentry, de, lock)
184 #define osd_ldiskfs_add_entry(handle, child, cinode, hlock) \
185 ldiskfs_add_entry(handle, child, cinode, hlock)
187 #define OSD_OTABLE_IT_CACHE_SIZE 128
188 #define OSD_OTABLE_IT_CACHE_MASK (~(OSD_OTABLE_IT_CACHE_SIZE - 1))
190 struct osd_inconsistent_item {
191 /* link into osd_scrub::os_inconsistent_items,
192 * protected by osd_scrub::os_lock. */
195 /* The right FID <=> ino#/gen mapping. */
196 struct osd_idmap_cache oii_cache;
198 unsigned int oii_insert:1; /* insert or update mapping. */
201 struct osd_otable_cache {
202 struct osd_idmap_cache ooc_cache[OSD_OTABLE_IT_CACHE_SIZE];
204 /* Index for next cache slot to be filled. */
205 int ooc_producer_idx;
207 /* Index for next cache slot to be returned by it::next(). */
208 int ooc_consumer_idx;
210 /* How many items in ooc_cache. */
211 int ooc_cached_items;
213 /* Position for up layer LFSCK iteration pre-loading. */
214 __u32 ooc_pos_preload;
217 struct osd_otable_it {
218 struct osd_device *ooi_dev;
220 struct osd_otable_cache ooi_cache;
222 /* The following bits can be updated/checked w/o lock protection.
223 * If more bits will be introduced in the future and need lock to
224 * protect, please add comment. */
225 unsigned long ooi_used_outside:1, /* Some user out of OSD
226 * uses the iteration. */
227 ooi_all_cached:1, /* No more entries can be
228 * filled into cache. */
229 ooi_user_ready:1, /* The user out of OSD is
230 * ready to iterate. */
231 ooi_waiting:1, /* it::next is waiting. */
232 ooi_stopping:1; /* Someone is stopping
236 extern const int osd_dto_credits_noquota[];
243 struct dt_device od_dt_dev;
244 /* information about underlying file system */
245 struct vfsmount *od_mnt;
247 struct osd_oi **od_oi_table;
248 /* total number of OI containers */
253 unsigned int od_fl_capa:1,
254 od_is_md:1; /* set in ->ldo_prepare */
255 unsigned long od_capa_timeout;
257 struct lustre_capa_key *od_capa_keys;
258 cfs_hlist_head_t *od_capa_hash;
260 cfs_proc_dir_entry_t *od_proc_entry;
261 struct lprocfs_stats *od_stats;
263 * statfs optimization: we cache a bit.
265 cfs_time_t od_osfs_age;
266 struct obd_statfs od_statfs;
267 spinlock_t od_osfs_lock;
269 unsigned int od_noscrub:1,
272 struct fsfilt_operations *od_fsops;
274 struct lu_site od_site;
276 struct osd_obj_map *od_ost_map;
277 struct osd_mdobj_map *od_mdt_map;
279 unsigned long long od_readcache_max_filesize;
281 int od_writethrough_cache;
283 struct brw_stats od_brw_stats;
284 cfs_atomic_t od_r_in_flight;
285 cfs_atomic_t od_w_in_flight;
287 struct mutex od_otable_mutex;
288 struct osd_otable_it *od_otable_it;
289 struct osd_scrub od_scrub;
290 cfs_list_t od_ios_list;
292 /* service name associated with the osd device */
293 char od_svname[MAX_OBD_NAME];
294 char od_mntdev[MAX_OBD_NAME];
296 /* quota slave instance */
297 struct qsd_instance *od_quota_slave;
300 /* There are at most 10 uid/gids are affected in a transaction, and
301 * that's rename case:
302 * - 2 for source parent uid & gid;
303 * - 2 for source child uid & gid ('..' entry update when child is directory);
304 * - 2 for target parent uid & gid;
305 * - 2 for target child uid & gid (if the target child exists);
306 * - 2 for root uid & gid (last_rcvd, llog, etc);
308 * The 0 to (OSD_MAX_UGID_CNT - 1) bits of ot_id_type is for indicating
309 * the id type of each id in the ot_id_array.
311 #define OSD_MAX_UGID_CNT 10
316 OSD_OT_XATTR_SET = 2,
328 #define OSD_TRACK_DECLARES
331 struct thandle ot_super;
333 struct journal_callback ot_jcb;
334 cfs_list_t ot_dcb_list;
335 /* Link to the device, for debugging. */
336 struct lu_ref_link *ot_dev_link;
337 unsigned short ot_credits;
338 unsigned short ot_id_cnt;
339 unsigned short ot_id_type;
340 uid_t ot_id_array[OSD_MAX_UGID_CNT];
341 struct lquota_trans *ot_quota_trans;
342 #if OSD_THANDLE_STATS
343 /** time when this handle was allocated */
344 cfs_time_t oth_alloced;
346 /** time when this thanle was started */
347 cfs_time_t oth_started;
352 * Basic transaction credit op
362 DTO_LOG_REC, /**< XXX temporary: dt layer knows nothing about llog. */
376 LPROC_OSD_READ_BYTES = 0,
377 LPROC_OSD_WRITE_BYTES = 1,
378 LPROC_OSD_GET_PAGE = 2,
379 LPROC_OSD_NO_PAGE = 3,
380 LPROC_OSD_CACHE_ACCESS = 4,
381 LPROC_OSD_CACHE_HIT = 5,
382 LPROC_OSD_CACHE_MISS = 6,
384 #if OSD_THANDLE_STATS
385 LPROC_OSD_THANDLE_STARTING,
386 LPROC_OSD_THANDLE_OPEN,
387 LPROC_OSD_THANDLE_CLOSING,
394 * Storage representation for fids.
396 * Variable size, first byte contains the length of the whole record.
398 struct osd_fid_pack {
399 unsigned char fp_len;
400 char fp_area[sizeof(struct lu_fid)];
403 struct osd_it_ea_dirent {
404 struct lu_fid oied_fid;
407 unsigned short oied_namelen;
408 unsigned int oied_type;
410 } __attribute__((packed));
413 * as osd_it_ea_dirent (in memory dirent struct for osd) is greater
414 * than lu_dirent struct. osd readdir reads less number of dirent than
415 * required for mdd dir page. so buffer size need to be increased so that
416 * there would be one ext3 readdir for every mdd readdir page.
419 #define OSD_IT_EA_BUFSIZE (CFS_PAGE_SIZE + CFS_PAGE_SIZE/4)
422 * This is iterator's in-memory data structure in interoperability
423 * mode (i.e. iterator over ldiskfs style directory)
426 struct osd_object *oie_obj;
427 /** used in ldiskfs iterator, to stored file pointer */
428 struct file oie_file;
429 /** how many entries have been read-cached from storage */
431 /** current entry is being iterated by caller */
433 /** current processing entry */
434 struct osd_it_ea_dirent *oie_dirent;
435 /** buffer to hold entries, size == OSD_IT_EA_BUFSIZE */
440 * Iterator's in-memory data structure for IAM mode.
443 struct osd_object *oi_obj;
444 struct iam_path_descr *oi_ipd;
445 struct iam_iterator oi_it;
448 struct osd_quota_leaf {
454 * Iterator's in-memory data structure for quota file.
456 struct osd_it_quota {
457 struct osd_object *oiq_obj;
458 /** tree blocks path to where the entry is stored */
459 uint oiq_blk[LUSTRE_DQTREEDEPTH + 1];
460 /** on-disk offset for current key where quota record can be found */
462 /** identifier for current quota record */
464 /** the record index in the leaf/index block */
465 uint oiq_index[LUSTRE_DQTREEDEPTH + 1];
466 /** list of already processed leaf blocks */
470 #define MAX_BLOCKS_PER_PAGE (CFS_PAGE_SIZE / 512)
474 cfs_atomic_t dr_numreqs; /* number of reqs being processed */
479 unsigned int dr_ignore_quota:1;
480 unsigned int dr_elapsed_valid:1; /* we really did count time */
481 unsigned int dr_rw:1;
482 struct page *dr_pages[PTLRPC_MAX_BRW_PAGES];
483 unsigned long dr_blocks[PTLRPC_MAX_BRW_PAGES*MAX_BLOCKS_PER_PAGE];
484 unsigned long dr_start_time;
485 unsigned long dr_elapsed; /* how long io took */
486 struct osd_device *dr_dev;
487 unsigned int dr_init_at; /* the line iobuf was initialized */
490 struct osd_thread_info {
491 const struct lu_env *oti_env;
493 * used for index operations.
495 struct dentry oti_obj_dentry;
496 struct dentry oti_child_dentry;
498 /** dentry for Iterator context. */
499 struct dentry oti_it_dentry;
500 struct htree_lock *oti_hlock;
502 struct lu_fid oti_fid;
503 struct lu_fid oti_fid2;
504 struct osd_inode_id oti_id;
505 struct osd_inode_id oti_id2;
506 struct ost_id oti_ostid;
509 * XXX temporary: for ->i_op calls.
511 struct timespec oti_time;
513 * XXX temporary: fake struct file for osd_object_sync
515 struct file oti_file;
517 * XXX temporary: for capa operations.
519 struct lustre_capa_key oti_capa_key;
520 struct lustre_capa oti_capa;
522 /** osd_device reference, initialized in osd_trans_start() and
523 used in osd_trans_stop() */
524 struct osd_device *oti_dev;
527 * following ipd and it structures are used for osd_index_iam_lookup()
528 * these are defined separately as we might do index operation
529 * in open iterator session.
532 /** osd iterator context used for iterator session */
535 struct osd_it_iam oti_it;
536 /* ldiskfs iterator data structure,
537 * see osd_it_ea_{init, fini} */
538 struct osd_it_ea oti_it_ea;
539 struct osd_it_quota oti_it_quota;
542 /** pre-allocated buffer used by oti_it_ea, size OSD_IT_EA_BUFSIZE */
545 cfs_kstatfs_t oti_ksfs;
547 /** IAM iterator for index operation. */
548 struct iam_iterator oti_idx_it;
550 /** union to guarantee that ->oti_ipd[] has proper alignment. */
552 char oti_it_ipd[DX_IPD_MAX_SIZE];
553 long long oti_alignment_lieutenant;
557 char oti_idx_ipd[DX_IPD_MAX_SIZE];
558 long long oti_alignment_lieutenant_colonel;
561 struct osd_idmap_cache oti_cache;
566 /** used in osd_fid_set() to put xattr */
567 struct lu_buf oti_buf;
568 /** used in osd_ea_fid_set() to set fid into common ea */
570 struct lustre_mdt_attrs oti_mdt_attrs;
571 /* old LMA for compatibility */
572 char oti_mdt_attrs_old[LMA_OLD_SIZE];
575 struct osd_iobuf oti_iobuf;
576 struct inode oti_inode;
577 int oti_created[PTLRPC_MAX_BRW_PAGES];
578 struct lu_env oti_obj_delete_tx_env;
579 #define OSD_FID_REC_SZ 32
580 char oti_ldp[OSD_FID_REC_SZ];
581 char oti_ldp2[OSD_FID_REC_SZ];
583 /* used by quota code */
585 struct if_dqblk oti_dqblk;
586 struct if_dqinfo oti_dqinfo;
588 struct lquota_id_info oti_qi;
589 struct lquota_trans oti_quota_trans;
590 union lquota_rec oti_quota_rec;
592 struct lu_seq_range oti_seq_range;
594 #ifdef OSD_TRACK_DECLARES
595 /* Tracking for transaction credits, to allow debugging and optimizing
596 * cases where a large number of credits are being allocated for
597 * single transaction. */
598 unsigned char oti_declare_ops[OSD_OT_MAX];
599 unsigned char oti_declare_ops_rb[OSD_OT_MAX];
600 unsigned short oti_declare_ops_cred[OSD_OT_MAX];
607 extern int ldiskfs_pdo;
611 void lprocfs_osd_init_vars(struct lprocfs_static_vars *lvars);
612 int osd_procfs_init(struct osd_device *osd, const char *name);
613 int osd_procfs_fini(struct osd_device *osd);
614 void osd_brw_stats_update(struct osd_device *osd, struct osd_iobuf *iobuf);
617 int osd_statfs(const struct lu_env *env, struct dt_device *dev,
618 struct obd_statfs *sfs);
619 int osd_object_auth(const struct lu_env *env, struct dt_object *dt,
620 struct lustre_capa *capa, __u64 opc);
621 struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
622 struct osd_inode_id *id);
623 int osd_ea_fid_set(struct osd_thread_info *info, struct inode *inode,
624 const struct lu_fid *fid);
625 int osd_get_lma(struct osd_thread_info *info, struct inode *inode,
626 struct dentry *dentry, struct lustre_mdt_attrs *lma);
628 int osd_obj_map_init(struct osd_device *osd);
629 void osd_obj_map_fini(struct osd_device *dev);
630 int osd_obj_map_lookup(struct osd_thread_info *info, struct osd_device *osd,
631 const struct lu_fid *fid, struct osd_inode_id *id);
632 int osd_obj_map_insert(struct osd_thread_info *info, struct osd_device *osd,
633 const struct lu_fid *fid, const struct osd_inode_id *id,
635 int osd_obj_map_delete(struct osd_thread_info *info, struct osd_device *osd,
636 const struct lu_fid *fid, struct thandle *th);
637 int osd_obj_spec_lookup(struct osd_thread_info *info, struct osd_device *osd,
638 const struct lu_fid *fid, struct osd_inode_id *id);
639 int osd_obj_spec_insert(struct osd_thread_info *info, struct osd_device *osd,
640 const struct lu_fid *fid, const struct osd_inode_id *id,
643 void osd_scrub_file_reset(struct osd_scrub *scrub, __u8 *uuid, __u64 flags);
644 int osd_scrub_file_store(struct osd_scrub *scrub);
645 char *osd_lf_fid2name(const struct lu_fid *fid);
646 int osd_scrub_start(struct osd_device *dev);
647 int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev);
648 void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev);
649 int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
651 int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid,
652 struct osd_inode_id *id);
653 int osd_scrub_dump(struct osd_device *dev, char *buf, int len);
655 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
656 const struct lu_fid *fid, struct lu_seq_range *range);
657 struct dentry *osd_agent_lookup(struct osd_mdobj_map *omm, int index);
658 struct dentry *osd_agent_load(const struct osd_device *osd, int mdt_index,
661 int osd_delete_agent_inode(const struct lu_env *env, struct osd_device *osd,
662 struct osd_object *obj, struct osd_thandle *oh);
663 int osd_create_agent_inode(const struct lu_env *env, struct osd_device *osd,
664 struct osd_object *obj, struct osd_thandle *oh);
666 /* osd_quota_fmt.c */
667 int walk_tree_dqentry(const struct lu_env *env, struct osd_object *obj,
668 int type, uint blk, int depth, uint index,
669 struct osd_it_quota *it);
670 int walk_block_dqentry(const struct lu_env *env, struct osd_object *obj,
671 int type, uint blk, uint index,
672 struct osd_it_quota *it);
673 loff_t find_tree_dqentry(const struct lu_env *env,
674 struct osd_object *obj, int type,
675 qid_t dqid, uint blk, int depth,
676 struct osd_it_quota *it);
678 int osd_declare_qid(const struct lu_env *env, struct osd_thandle *oh,
679 struct lquota_id_info *qi, bool allocated, int *flags);
680 int osd_declare_inode_qid(const struct lu_env *env, qid_t uid, qid_t gid,
681 long long space, struct osd_thandle *oh,
682 bool is_blk, bool allocated, int *flags, bool force);
683 const struct dt_rec *osd_quota_pack(struct osd_object *obj,
684 const struct dt_rec *rec,
685 union lquota_rec *quota_rec);
686 void osd_quota_unpack(struct osd_object *obj, const struct dt_rec *rec);
687 int osd_quota_migration(const struct lu_env *env, struct dt_object *dt,
688 const struct dt_index_features *feat);
691 struct osd_obj_seq *osd_seq_load(struct osd_device *osd, obd_seq seq);
693 static inline bool is_quota_glb_feat(const struct dt_index_features *feat)
695 return (feat == &dt_quota_iusr_features ||
696 feat == &dt_quota_busr_features ||
697 feat == &dt_quota_igrp_features ||
698 feat == &dt_quota_bgrp_features) ? true : false;
702 * Invariants, assertions.
706 * XXX: do not enable this, until invariant checking code is made thread safe
707 * in the face of pdirops locking.
709 #define OSD_INVARIANT_CHECKS (0)
711 #if OSD_INVARIANT_CHECKS
712 static inline int osd_invariant(const struct osd_object *obj)
716 ergo(obj->oo_inode != NULL,
717 obj->oo_inode->i_sb == osd_sb(osd_obj2dev(obj)) &&
718 atomic_read(&obj->oo_inode->i_count) > 0) &&
719 ergo(obj->oo_dir != NULL &&
720 obj->oo_dir->od_conationer.ic_object != NULL,
721 obj->oo_dir->od_conationer.ic_object == obj->oo_inode);
724 #define osd_invariant(obj) (1)
727 #define OSD_MAX_CACHE_SIZE OBD_OBJECT_EOF
729 extern const struct dt_index_operations osd_otable_ops;
731 static inline int osd_oi_fid2idx(struct osd_device *dev,
732 const struct lu_fid *fid)
734 return fid->f_seq & (dev->od_oi_count - 1);
737 static inline struct osd_oi *osd_fid2oi(struct osd_device *osd,
738 const struct lu_fid *fid)
740 LASSERTF(!fid_is_idif(fid), DFID"\n", PFID(fid));
741 LASSERTF(!fid_is_last_id(fid), DFID"\n", PFID(fid));
742 LASSERT(osd->od_oi_table != NULL && osd->od_oi_count >= 1);
743 /* It can work even od_oi_count equals to 1 although it's unexpected,
744 * the only reason we set it to 1 is for performance measurement */
745 return osd->od_oi_table[osd_oi_fid2idx(osd, fid)];
748 extern const struct lu_device_operations osd_lu_ops;
750 static inline int lu_device_is_osd(const struct lu_device *d)
752 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &osd_lu_ops);
755 static inline struct osd_device *osd_dt_dev(const struct dt_device *d)
757 LASSERT(lu_device_is_osd(&d->dd_lu_dev));
758 return container_of0(d, struct osd_device, od_dt_dev);
761 static inline struct osd_device *osd_dev(const struct lu_device *d)
763 LASSERT(lu_device_is_osd(d));
764 return osd_dt_dev(container_of0(d, struct dt_device, dd_lu_dev));
767 static inline struct osd_device *osd_obj2dev(const struct osd_object *o)
769 return osd_dev(o->oo_dt.do_lu.lo_dev);
772 static inline struct super_block *osd_sb(const struct osd_device *dev)
774 return dev->od_mnt->mnt_sb;
777 static inline int osd_object_is_root(const struct osd_object *obj)
779 return osd_sb(osd_obj2dev(obj))->s_root->d_inode == obj->oo_inode;
782 static inline struct osd_object *osd_obj(const struct lu_object *o)
784 LASSERT(lu_device_is_osd(o->lo_dev));
785 return container_of0(o, struct osd_object, oo_dt.do_lu);
788 static inline struct osd_object *osd_dt_obj(const struct dt_object *d)
790 return osd_obj(&d->do_lu);
793 static inline struct lu_device *osd2lu_dev(struct osd_device *osd)
795 return &osd->od_dt_dev.dd_lu_dev;
798 static inline journal_t *osd_journal(const struct osd_device *dev)
800 return LDISKFS_SB(osd_sb(dev))->s_journal;
803 static inline struct seq_server_site *osd_seq_site(struct osd_device *osd)
805 return osd->od_dt_dev.dd_lu_dev.ld_site->ld_seq_site;
808 static inline char *osd_name(struct osd_device *osd)
810 return osd->od_dt_dev.dd_lu_dev.ld_obd->obd_name;
814 extern const struct dt_body_operations osd_body_ops;
815 extern struct lu_context_key osd_key;
817 static inline struct osd_thread_info *osd_oti_get(const struct lu_env *env)
819 return lu_context_key_get(&env->le_ctx, &osd_key);
822 extern const struct dt_body_operations osd_body_ops_new;
828 struct iam_path_descr *osd_it_ipd_get(const struct lu_env *env,
829 const struct iam_container *bag)
831 return bag->ic_descr->id_ops->id_ipd_alloc(bag,
832 osd_oti_get(env)->oti_it_ipd);
836 struct iam_path_descr *osd_idx_ipd_get(const struct lu_env *env,
837 const struct iam_container *bag)
839 return bag->ic_descr->id_ops->id_ipd_alloc(bag,
840 osd_oti_get(env)->oti_idx_ipd);
843 static inline void osd_ipd_put(const struct lu_env *env,
844 const struct iam_container *bag,
845 struct iam_path_descr *ipd)
847 bag->ic_descr->id_ops->id_ipd_free(ipd);
850 int osd_ldiskfs_read(struct inode *inode, void *buf, int size, loff_t *offs);
851 int osd_ldiskfs_write_record(struct inode *inode, void *buf, int bufsize,
852 int write_NUL, loff_t *offs, handle_t *handle);
855 struct dentry *osd_child_dentry_by_inode(const struct lu_env *env,
857 const char *name, const int namelen)
859 struct osd_thread_info *info = osd_oti_get(env);
860 struct dentry *child_dentry = &info->oti_child_dentry;
861 struct dentry *obj_dentry = &info->oti_obj_dentry;
863 obj_dentry->d_inode = inode;
864 obj_dentry->d_sb = inode->i_sb;
865 obj_dentry->d_name.hash = 0;
867 child_dentry->d_name.hash = 0;
868 child_dentry->d_parent = obj_dentry;
869 child_dentry->d_name.name = name;
870 child_dentry->d_name.len = namelen;
874 #ifdef OSD_TRACK_DECLARES
875 extern int osd_trans_declare_op2rb[];
877 static inline void osd_trans_declare_op(const struct lu_env *env,
878 struct osd_thandle *oh,
879 unsigned int op, int credits)
881 struct osd_thread_info *oti = osd_oti_get(env);
883 LASSERT(oh->ot_handle == NULL);
884 LASSERT(op < OSD_OT_MAX);
886 oti->oti_declare_ops[op]++;
887 oti->oti_declare_ops_cred[op] += credits;
888 oh->ot_credits += credits;
891 static inline void osd_trans_exec_op(const struct lu_env *env,
892 struct thandle *th, unsigned int op)
894 struct osd_thread_info *oti = osd_oti_get(env);
895 struct osd_thandle *oh = container_of(th, struct osd_thandle,
899 LASSERT(oh->ot_handle != NULL);
900 LASSERT(op < OSD_OT_MAX);
902 if (likely(!oti->oti_rollback && oti->oti_declare_ops[op] > 0)) {
903 oti->oti_declare_ops[op]--;
904 oti->oti_declare_ops_rb[op]++;
906 /* all future updates are considered rollback */
907 oti->oti_rollback = true;
908 rb = osd_trans_declare_op2rb[op];
909 LASSERTF(rb < OSD_OT_MAX, "op = %u\n", op);
910 LASSERTF(oti->oti_declare_ops_rb[rb] > 0, "rb = %u\n", rb);
911 oti->oti_declare_ops_rb[rb]--;
915 static inline void osd_trans_declare_rb(const struct lu_env *env,
916 struct thandle *th, unsigned int op)
918 struct osd_thread_info *oti = osd_oti_get(env);
919 struct osd_thandle *oh = container_of(th, struct osd_thandle,
922 LASSERT(oh->ot_handle != NULL);
923 LASSERT(op < OSD_OT_MAX);
925 oti->oti_declare_ops_rb[op]++;
928 static inline void osd_trans_declare_op(const struct lu_env *env,
929 struct osd_thandle *oh,
930 unsigned int op, int credits)
932 oh->ot_credits += credits;
935 static inline void osd_trans_exec_op(const struct lu_env *env,
936 struct thandle *th, unsigned int op)
940 static inline void osd_trans_declare_rb(const struct lu_env *env,
941 struct thandle *th, unsigned int op)
947 * Helper function to pack the fid, ldiskfs stores fid in packed format.
950 void osd_fid_pack(struct osd_fid_pack *pack, const struct dt_rec *fid,
951 struct lu_fid *befider)
953 fid_cpu_to_be(befider, (struct lu_fid *)fid);
954 memcpy(pack->fp_area, befider, sizeof(*befider));
955 pack->fp_len = sizeof(*befider) + 1;
959 int osd_fid_unpack(struct lu_fid *fid, const struct osd_fid_pack *pack)
964 switch (pack->fp_len) {
965 case sizeof *fid + 1:
966 memcpy(fid, pack->fp_area, sizeof *fid);
967 fid_be_to_cpu(fid, fid);
970 CERROR("Unexpected packed fid size: %d\n", pack->fp_len);
977 * Quota/Accounting handling
979 extern const struct dt_index_operations osd_acct_index_ops;
980 int osd_acct_obj_lookup(struct osd_thread_info *info, struct osd_device *osd,
981 const struct lu_fid *fid, struct osd_inode_id *id);
983 /* copy from fs/ext4/dir.c */
984 static inline int is_32bit_api(void)
987 return is_compat_task();
989 return (BITS_PER_LONG == 32);
993 static inline loff_t ldiskfs_get_htree_eof(struct file *filp)
995 if ((filp->f_mode & FMODE_32BITHASH) ||
996 (!(filp->f_mode & FMODE_64BITHASH) && is_32bit_api()))
997 return LDISKFS_HTREE_EOF_32BIT;
999 return LDISKFS_HTREE_EOF_64BIT;
1002 #endif /* __KERNEL__ */
1003 #endif /* _OSD_INTERNAL_H */