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>
58 /* fsfilt_{get|put}_ops */
59 #include <lustre_fsfilt.h>
63 /* class_register_type(), class_unregister_type(), class_get_type() */
64 #include <obd_class.h>
65 #include <lustre_disk.h>
66 #include <dt_object.h>
67 #include <lustre_quota.h>
71 #include "osd_scrub.h"
72 #include "osd_quota_fmt.h"
76 #define OSD_COUNTERS (0)
78 /* ldiskfs special inode::i_state_flags need to be accessed with
79 * ldiskfs_{set,clear,test}_inode_state() only */
81 /* OI scrub should skip this inode. */
82 #define LDISKFS_STATE_LUSTRE_NOSCRUB 31
84 /* Do not add OI mapping for this inode. */
85 #define LDISKFS_STATE_LUSTRE_NO_OI 30
87 /** Enable thandle usage statistics */
88 #define OSD_THANDLE_STATS (0)
90 #define MAX_OBJID_GROUP (FID_SEQ_ECHO + 1)
92 #define OBJECTS "OBJECTS"
93 #define ADMIN_USR "admin_quotafile_v2.usr"
94 #define ADMIN_GRP "admin_quotafile_v2.grp"
96 struct osd_directory {
97 struct iam_container od_container;
98 struct iam_descr od_descr;
102 * Object Index (oi) instance.
106 * underlying index object, where fid->id mapping in stored.
108 struct inode *oi_inode;
109 struct osd_directory oi_dir;
112 extern const int osd_dto_credits_noquota[];
115 struct dt_object oo_dt;
117 * Inode for file system object represented by this osd_object. This
118 * inode is pinned for the whole duration of lu_object life.
120 * Not modified concurrently (either setup early during object
121 * creation, or assigned by osd_object_create() under write lock).
123 struct inode *oo_inode;
125 * to protect index ops.
127 struct htree_lock_head *oo_hl_head;
128 struct rw_semaphore oo_ext_idx_sem;
129 struct rw_semaphore oo_sem;
130 struct osd_directory *oo_dir;
131 /** protects inode attributes. */
134 * Following two members are used to indicate the presence of dot and
135 * dotdot in the given directory. This is required for interop mode
138 int oo_compat_dot_created;
139 int oo_compat_dotdot_created;
141 const struct lu_env *oo_owner;
142 #ifdef CONFIG_LOCKDEP
143 struct lockdep_map oo_dep_map;
148 /* protects on-fly initialization */
149 int oos_subdir_count; /* subdir count for each seq */
150 struct dentry *oos_root; /* O/<seq> */
151 struct dentry **oos_dirs; /* O/<seq>/d0-dXX */
152 obd_seq oos_seq; /* seq number */
153 cfs_list_t oos_seq_list; /* list to seq_list */
157 struct dentry *om_root; /* dentry for /O */
158 rwlock_t om_seq_list_lock; /* lock for seq_list */
159 cfs_list_t om_seq_list; /* list head for seq */
161 struct semaphore om_dir_init_sem;
165 struct dentry *om_root; /* AGENT/<index> */
166 obd_seq om_index; /* mdt index */
167 cfs_list_t om_list; /* list to omm_list */
170 struct osd_mdobj_map {
171 struct dentry *omm_agent_dentry;
174 #define osd_ldiskfs_find_entry(dir, dentry, de, lock) \
175 ll_ldiskfs_find_entry(dir, dentry, de, lock)
176 #define osd_ldiskfs_add_entry(handle, child, cinode, hlock) \
177 ldiskfs_add_entry(handle, child, cinode, hlock)
179 #define OSD_OTABLE_IT_CACHE_SIZE 128
180 #define OSD_OTABLE_IT_CACHE_MASK (~(OSD_OTABLE_IT_CACHE_SIZE - 1))
182 struct osd_inconsistent_item {
183 /* link into osd_scrub::os_inconsistent_items,
184 * protected by osd_scrub::os_lock. */
187 /* The right FID <=> ino#/gen mapping. */
188 struct osd_idmap_cache oii_cache;
190 unsigned int oii_insert:1; /* insert or update mapping. */
193 struct osd_otable_cache {
194 struct osd_idmap_cache ooc_cache[OSD_OTABLE_IT_CACHE_SIZE];
196 /* Index for next cache slot to be filled. */
197 int ooc_producer_idx;
199 /* Index for next cache slot to be returned by it::next(). */
200 int ooc_consumer_idx;
202 /* How many items in ooc_cache. */
203 int ooc_cached_items;
205 /* Position for up layer LFSCK iteration pre-loading. */
206 __u32 ooc_pos_preload;
209 struct osd_otable_it {
210 struct osd_device *ooi_dev;
212 struct osd_otable_cache ooi_cache;
214 /* The following bits can be updated/checked w/o lock protection.
215 * If more bits will be introduced in the future and need lock to
216 * protect, please add comment. */
217 unsigned long ooi_used_outside:1, /* Some user out of OSD
218 * uses the iteration. */
219 ooi_all_cached:1, /* No more entries can be
220 * filled into cache. */
221 ooi_user_ready:1, /* The user out of OSD is
222 * ready to iterate. */
223 ooi_waiting:1, /* it::next is waiting. */
224 ooi_stopping:1; /* Someone is stopping
228 extern const int osd_dto_credits_noquota[];
235 struct dt_device od_dt_dev;
236 /* information about underlying file system */
237 struct vfsmount *od_mnt;
239 struct osd_oi **od_oi_table;
240 /* total number of OI containers */
245 unsigned int od_fl_capa:1,
246 od_is_md:1; /* set in ->ldo_prepare */
247 unsigned long od_capa_timeout;
249 struct lustre_capa_key *od_capa_keys;
250 cfs_hlist_head_t *od_capa_hash;
252 cfs_proc_dir_entry_t *od_proc_entry;
253 struct lprocfs_stats *od_stats;
255 * statfs optimization: we cache a bit.
257 cfs_time_t od_osfs_age;
258 struct obd_statfs od_statfs;
259 spinlock_t od_osfs_lock;
261 unsigned int od_noscrub:1,
265 struct fsfilt_operations *od_fsops;
267 struct lu_site od_site;
269 struct osd_obj_map *od_ost_map;
270 struct osd_mdobj_map *od_mdt_map;
272 unsigned long long od_readcache_max_filesize;
274 int od_writethrough_cache;
276 struct brw_stats od_brw_stats;
277 cfs_atomic_t od_r_in_flight;
278 cfs_atomic_t od_w_in_flight;
280 struct mutex od_otable_mutex;
281 struct osd_otable_it *od_otable_it;
282 struct osd_scrub od_scrub;
283 cfs_list_t od_ios_list;
285 /* service name associated with the osd device */
286 char od_svname[MAX_OBD_NAME];
287 char od_mntdev[MAX_OBD_NAME];
289 /* quota slave instance */
290 struct qsd_instance *od_quota_slave;
293 /* There are at most 10 uid/gids are affected in a transaction, and
294 * that's rename case:
295 * - 2 for source parent uid & gid;
296 * - 2 for source child uid & gid ('..' entry update when child is directory);
297 * - 2 for target parent uid & gid;
298 * - 2 for target child uid & gid (if the target child exists);
299 * - 2 for root uid & gid (last_rcvd, llog, etc);
301 * The 0 to (OSD_MAX_UGID_CNT - 1) bits of ot_id_type is for indicating
302 * the id type of each id in the ot_id_array.
304 #define OSD_MAX_UGID_CNT 10
309 OSD_OT_XATTR_SET = 2,
321 #define OSD_TRACK_DECLARES
324 struct thandle ot_super;
326 struct ldiskfs_journal_cb_entry ot_jcb;
327 cfs_list_t ot_dcb_list;
328 /* Link to the device, for debugging. */
329 struct lu_ref_link *ot_dev_link;
330 unsigned short ot_credits;
331 unsigned short ot_id_cnt;
332 unsigned short ot_id_type;
333 uid_t ot_id_array[OSD_MAX_UGID_CNT];
334 struct lquota_trans *ot_quota_trans;
335 #if OSD_THANDLE_STATS
336 /** time when this handle was allocated */
337 cfs_time_t oth_alloced;
339 /** time when this thanle was started */
340 cfs_time_t oth_started;
345 * Basic transaction credit op
355 DTO_LOG_REC, /**< XXX temporary: dt layer knows nothing about llog. */
369 LPROC_OSD_READ_BYTES = 0,
370 LPROC_OSD_WRITE_BYTES = 1,
371 LPROC_OSD_GET_PAGE = 2,
372 LPROC_OSD_NO_PAGE = 3,
373 LPROC_OSD_CACHE_ACCESS = 4,
374 LPROC_OSD_CACHE_HIT = 5,
375 LPROC_OSD_CACHE_MISS = 6,
377 #if OSD_THANDLE_STATS
378 LPROC_OSD_THANDLE_STARTING,
379 LPROC_OSD_THANDLE_OPEN,
380 LPROC_OSD_THANDLE_CLOSING,
387 * Storage representation for fids.
389 * Variable size, first byte contains the length of the whole record.
391 struct osd_fid_pack {
392 unsigned char fp_len;
393 char fp_area[sizeof(struct lu_fid)];
396 struct osd_it_ea_dirent {
397 struct lu_fid oied_fid;
400 unsigned short oied_namelen;
401 unsigned int oied_type;
403 } __attribute__((packed));
406 * as osd_it_ea_dirent (in memory dirent struct for osd) is greater
407 * than lu_dirent struct. osd readdir reads less number of dirent than
408 * required for mdd dir page. so buffer size need to be increased so that
409 * there would be one ext3 readdir for every mdd readdir page.
412 #define OSD_IT_EA_BUFSIZE (CFS_PAGE_SIZE + CFS_PAGE_SIZE/4)
415 * This is iterator's in-memory data structure in interoperability
416 * mode (i.e. iterator over ldiskfs style directory)
419 struct osd_object *oie_obj;
420 /** used in ldiskfs iterator, to stored file pointer */
421 struct file oie_file;
422 /** how many entries have been read-cached from storage */
424 /** current entry is being iterated by caller */
426 /** current processing entry */
427 struct osd_it_ea_dirent *oie_dirent;
428 /** buffer to hold entries, size == OSD_IT_EA_BUFSIZE */
433 * Iterator's in-memory data structure for IAM mode.
436 struct osd_object *oi_obj;
437 struct iam_path_descr *oi_ipd;
438 struct iam_iterator oi_it;
441 struct osd_quota_leaf {
447 * Iterator's in-memory data structure for quota file.
449 struct osd_it_quota {
450 struct osd_object *oiq_obj;
451 /** tree blocks path to where the entry is stored */
452 uint oiq_blk[LUSTRE_DQTREEDEPTH + 1];
453 /** on-disk offset for current key where quota record can be found */
455 /** identifier for current quota record */
457 /** the record index in the leaf/index block */
458 uint oiq_index[LUSTRE_DQTREEDEPTH + 1];
459 /** list of already processed leaf blocks */
463 #define MAX_BLOCKS_PER_PAGE (CFS_PAGE_SIZE / 512)
467 cfs_atomic_t dr_numreqs; /* number of reqs being processed */
472 unsigned int dr_ignore_quota:1;
473 unsigned int dr_elapsed_valid:1; /* we really did count time */
474 unsigned int dr_rw:1;
475 struct page *dr_pages[PTLRPC_MAX_BRW_PAGES];
476 unsigned long dr_blocks[PTLRPC_MAX_BRW_PAGES*MAX_BLOCKS_PER_PAGE];
477 unsigned long dr_start_time;
478 unsigned long dr_elapsed; /* how long io took */
479 struct osd_device *dr_dev;
480 unsigned int dr_init_at; /* the line iobuf was initialized */
483 struct osd_thread_info {
484 const struct lu_env *oti_env;
486 * used for index operations.
488 struct dentry oti_obj_dentry;
489 struct dentry oti_child_dentry;
491 /** dentry for Iterator context. */
492 struct dentry oti_it_dentry;
493 struct htree_lock *oti_hlock;
495 struct lu_fid oti_fid;
496 struct lu_fid oti_fid2;
497 struct osd_inode_id oti_id;
498 struct osd_inode_id oti_id2;
499 struct ost_id oti_ostid;
502 * XXX temporary: for ->i_op calls.
504 struct timespec oti_time;
506 * XXX temporary: fake struct file for osd_object_sync
508 struct file oti_file;
510 * XXX temporary: for capa operations.
512 struct lustre_capa_key oti_capa_key;
513 struct lustre_capa oti_capa;
515 /** osd_device reference, initialized in osd_trans_start() and
516 used in osd_trans_stop() */
517 struct osd_device *oti_dev;
520 * following ipd and it structures are used for osd_index_iam_lookup()
521 * these are defined separately as we might do index operation
522 * in open iterator session.
525 /** osd iterator context used for iterator session */
528 struct osd_it_iam oti_it;
529 /* ldiskfs iterator data structure,
530 * see osd_it_ea_{init, fini} */
531 struct osd_it_ea oti_it_ea;
532 struct osd_it_quota oti_it_quota;
535 /** pre-allocated buffer used by oti_it_ea, size OSD_IT_EA_BUFSIZE */
538 cfs_kstatfs_t oti_ksfs;
540 /** IAM iterator for index operation. */
541 struct iam_iterator oti_idx_it;
543 /** union to guarantee that ->oti_ipd[] has proper alignment. */
545 char oti_it_ipd[DX_IPD_MAX_SIZE];
546 long long oti_alignment_lieutenant;
550 char oti_idx_ipd[DX_IPD_MAX_SIZE];
551 long long oti_alignment_lieutenant_colonel;
554 struct osd_idmap_cache oti_cache;
559 /** used in osd_fid_set() to put xattr */
560 struct lu_buf oti_buf;
561 /** used in osd_ea_fid_set() to set fid into common ea */
563 struct lustre_mdt_attrs oti_mdt_attrs;
564 /* old LMA for compatibility */
565 char oti_mdt_attrs_old[LMA_OLD_SIZE];
568 struct osd_iobuf oti_iobuf;
569 struct inode oti_inode;
570 int oti_created[PTLRPC_MAX_BRW_PAGES];
571 struct lu_env oti_obj_delete_tx_env;
572 #define OSD_FID_REC_SZ 32
573 char oti_ldp[OSD_FID_REC_SZ];
574 char oti_ldp2[OSD_FID_REC_SZ];
576 /* used by quota code */
578 #ifdef HAVE_DQUOT_FS_DISK_QUOTA
579 struct fs_disk_quota oti_fdq;
581 struct if_dqblk oti_dqblk;
583 struct if_dqinfo oti_dqinfo;
585 struct lquota_id_info oti_qi;
586 struct lquota_trans oti_quota_trans;
587 union lquota_rec oti_quota_rec;
589 struct lu_seq_range oti_seq_range;
591 #ifdef OSD_TRACK_DECLARES
592 /* Tracking for transaction credits, to allow debugging and optimizing
593 * cases where a large number of credits are being allocated for
594 * single transaction. */
595 unsigned char oti_declare_ops[OSD_OT_MAX];
596 unsigned char oti_declare_ops_rb[OSD_OT_MAX];
597 unsigned short oti_declare_ops_cred[OSD_OT_MAX];
604 extern int ldiskfs_pdo;
608 void lprocfs_osd_init_vars(struct lprocfs_static_vars *lvars);
609 int osd_procfs_init(struct osd_device *osd, const char *name);
610 int osd_procfs_fini(struct osd_device *osd);
611 void osd_brw_stats_update(struct osd_device *osd, struct osd_iobuf *iobuf);
614 int osd_statfs(const struct lu_env *env, struct dt_device *dev,
615 struct obd_statfs *sfs);
616 int osd_object_auth(const struct lu_env *env, struct dt_object *dt,
617 struct lustre_capa *capa, __u64 opc);
618 struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
619 struct osd_inode_id *id);
620 int osd_ea_fid_set(struct osd_thread_info *info, struct inode *inode,
621 const struct lu_fid *fid);
622 int osd_get_lma(struct osd_thread_info *info, struct inode *inode,
623 struct dentry *dentry, struct lustre_mdt_attrs *lma);
625 int osd_obj_map_init(struct osd_device *osd);
626 void osd_obj_map_fini(struct osd_device *dev);
627 int osd_obj_map_lookup(struct osd_thread_info *info, struct osd_device *osd,
628 const struct lu_fid *fid, struct osd_inode_id *id);
629 int osd_obj_map_insert(struct osd_thread_info *info, struct osd_device *osd,
630 const struct lu_fid *fid, const struct osd_inode_id *id,
632 int osd_obj_map_delete(struct osd_thread_info *info, struct osd_device *osd,
633 const struct lu_fid *fid, struct thandle *th);
634 int osd_obj_spec_lookup(struct osd_thread_info *info, struct osd_device *osd,
635 const struct lu_fid *fid, struct osd_inode_id *id);
636 int osd_obj_spec_insert(struct osd_thread_info *info, struct osd_device *osd,
637 const struct lu_fid *fid, const struct osd_inode_id *id,
640 void osd_scrub_file_reset(struct osd_scrub *scrub, __u8 *uuid, __u64 flags);
641 int osd_scrub_file_store(struct osd_scrub *scrub);
642 char *osd_lf_fid2name(const struct lu_fid *fid);
643 int osd_scrub_start(struct osd_device *dev);
644 int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev);
645 void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev);
646 int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
648 int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid,
649 struct osd_inode_id *id);
650 int osd_scrub_dump(struct osd_device *dev, char *buf, int len);
652 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
653 const struct lu_fid *fid, struct lu_seq_range *range);
654 struct dentry *osd_agent_lookup(struct osd_mdobj_map *omm, int index);
655 struct dentry *osd_agent_load(const struct osd_device *osd, int mdt_index,
658 int osd_delete_from_agent(const struct lu_env *env, struct osd_device *osd,
659 struct osd_object *obj, struct osd_thandle *oh);
660 int osd_add_to_agent(const struct lu_env *env, struct osd_device *osd,
661 struct osd_object *obj, struct osd_thandle *oh);
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 int osd_declare_qid(const struct lu_env *env, struct osd_thandle *oh,
676 struct lquota_id_info *qi, bool allocated, int *flags);
677 int osd_declare_inode_qid(const struct lu_env *env, qid_t uid, qid_t gid,
678 long long space, struct osd_thandle *oh,
679 bool is_blk, bool allocated, int *flags, bool force);
680 const struct dt_rec *osd_quota_pack(struct osd_object *obj,
681 const struct dt_rec *rec,
682 union lquota_rec *quota_rec);
683 void osd_quota_unpack(struct osd_object *obj, const struct dt_rec *rec);
684 int osd_quota_migration(const struct lu_env *env, struct dt_object *dt,
685 const struct dt_index_features *feat);
688 struct osd_obj_seq *osd_seq_load(struct osd_device *osd, obd_seq seq);
690 static inline bool is_quota_glb_feat(const struct dt_index_features *feat)
692 return (feat == &dt_quota_iusr_features ||
693 feat == &dt_quota_busr_features ||
694 feat == &dt_quota_igrp_features ||
695 feat == &dt_quota_bgrp_features) ? true : false;
699 * Invariants, assertions.
703 * XXX: do not enable this, until invariant checking code is made thread safe
704 * in the face of pdirops locking.
706 #define OSD_INVARIANT_CHECKS (0)
708 #if OSD_INVARIANT_CHECKS
709 static inline int osd_invariant(const struct osd_object *obj)
713 ergo(obj->oo_inode != NULL,
714 obj->oo_inode->i_sb == osd_sb(osd_obj2dev(obj)) &&
715 atomic_read(&obj->oo_inode->i_count) > 0) &&
716 ergo(obj->oo_dir != NULL &&
717 obj->oo_dir->od_conationer.ic_object != NULL,
718 obj->oo_dir->od_conationer.ic_object == obj->oo_inode);
721 #define osd_invariant(obj) (1)
724 #define OSD_MAX_CACHE_SIZE OBD_OBJECT_EOF
726 extern const struct dt_index_operations osd_otable_ops;
728 static inline int osd_oi_fid2idx(struct osd_device *dev,
729 const struct lu_fid *fid)
731 return fid->f_seq & (dev->od_oi_count - 1);
734 static inline struct osd_oi *osd_fid2oi(struct osd_device *osd,
735 const struct lu_fid *fid)
737 LASSERTF(!fid_is_idif(fid), DFID"\n", PFID(fid));
738 LASSERTF(!fid_is_last_id(fid), DFID"\n", PFID(fid));
739 LASSERT(osd->od_oi_table != NULL && osd->od_oi_count >= 1);
740 /* It can work even od_oi_count equals to 1 although it's unexpected,
741 * the only reason we set it to 1 is for performance measurement */
742 return osd->od_oi_table[osd_oi_fid2idx(osd, fid)];
745 extern const struct lu_device_operations osd_lu_ops;
747 static inline int lu_device_is_osd(const struct lu_device *d)
749 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &osd_lu_ops);
752 static inline struct osd_device *osd_dt_dev(const struct dt_device *d)
754 LASSERT(lu_device_is_osd(&d->dd_lu_dev));
755 return container_of0(d, struct osd_device, od_dt_dev);
758 static inline struct osd_device *osd_dev(const struct lu_device *d)
760 LASSERT(lu_device_is_osd(d));
761 return osd_dt_dev(container_of0(d, struct dt_device, dd_lu_dev));
764 static inline struct osd_device *osd_obj2dev(const struct osd_object *o)
766 return osd_dev(o->oo_dt.do_lu.lo_dev);
769 static inline struct super_block *osd_sb(const struct osd_device *dev)
771 return dev->od_mnt->mnt_sb;
774 static inline int osd_object_is_root(const struct osd_object *obj)
776 return osd_sb(osd_obj2dev(obj))->s_root->d_inode == obj->oo_inode;
779 static inline struct osd_object *osd_obj(const struct lu_object *o)
781 LASSERT(lu_device_is_osd(o->lo_dev));
782 return container_of0(o, struct osd_object, oo_dt.do_lu);
785 static inline struct osd_object *osd_dt_obj(const struct dt_object *d)
787 return osd_obj(&d->do_lu);
790 static inline struct lu_device *osd2lu_dev(struct osd_device *osd)
792 return &osd->od_dt_dev.dd_lu_dev;
795 static inline journal_t *osd_journal(const struct osd_device *dev)
797 return LDISKFS_SB(osd_sb(dev))->s_journal;
800 static inline struct seq_server_site *osd_seq_site(struct osd_device *osd)
802 return osd->od_dt_dev.dd_lu_dev.ld_site->ld_seq_site;
805 static inline char *osd_name(struct osd_device *osd)
807 return osd->od_dt_dev.dd_lu_dev.ld_obd->obd_name;
811 extern const struct dt_body_operations osd_body_ops;
812 extern struct lu_context_key osd_key;
814 static inline struct osd_thread_info *osd_oti_get(const struct lu_env *env)
816 return lu_context_key_get(&env->le_ctx, &osd_key);
819 extern const struct dt_body_operations osd_body_ops_new;
825 struct iam_path_descr *osd_it_ipd_get(const struct lu_env *env,
826 const struct iam_container *bag)
828 return bag->ic_descr->id_ops->id_ipd_alloc(bag,
829 osd_oti_get(env)->oti_it_ipd);
833 struct iam_path_descr *osd_idx_ipd_get(const struct lu_env *env,
834 const struct iam_container *bag)
836 return bag->ic_descr->id_ops->id_ipd_alloc(bag,
837 osd_oti_get(env)->oti_idx_ipd);
840 static inline void osd_ipd_put(const struct lu_env *env,
841 const struct iam_container *bag,
842 struct iam_path_descr *ipd)
844 bag->ic_descr->id_ops->id_ipd_free(ipd);
847 int osd_ldiskfs_read(struct inode *inode, void *buf, int size, loff_t *offs);
848 int osd_ldiskfs_write_record(struct inode *inode, void *buf, int bufsize,
849 int write_NUL, loff_t *offs, handle_t *handle);
852 struct dentry *osd_child_dentry_by_inode(const struct lu_env *env,
854 const char *name, const int namelen)
856 struct osd_thread_info *info = osd_oti_get(env);
857 struct dentry *child_dentry = &info->oti_child_dentry;
858 struct dentry *obj_dentry = &info->oti_obj_dentry;
860 obj_dentry->d_inode = inode;
861 obj_dentry->d_sb = inode->i_sb;
862 obj_dentry->d_name.hash = 0;
864 child_dentry->d_name.hash = 0;
865 child_dentry->d_parent = obj_dentry;
866 child_dentry->d_name.name = name;
867 child_dentry->d_name.len = namelen;
871 #ifdef OSD_TRACK_DECLARES
872 extern int osd_trans_declare_op2rb[];
874 static inline void osd_trans_declare_op(const struct lu_env *env,
875 struct osd_thandle *oh,
876 unsigned int op, int credits)
878 struct osd_thread_info *oti = osd_oti_get(env);
880 LASSERT(oh->ot_handle == NULL);
881 LASSERT(op < OSD_OT_MAX);
883 oti->oti_declare_ops[op]++;
884 oti->oti_declare_ops_cred[op] += credits;
885 oh->ot_credits += credits;
888 static inline void osd_trans_exec_op(const struct lu_env *env,
889 struct thandle *th, unsigned int op)
891 struct osd_thread_info *oti = osd_oti_get(env);
892 struct osd_thandle *oh = container_of(th, struct osd_thandle,
896 LASSERT(oh->ot_handle != NULL);
897 LASSERT(op < OSD_OT_MAX);
899 if (likely(!oti->oti_rollback && oti->oti_declare_ops[op] > 0)) {
900 oti->oti_declare_ops[op]--;
901 oti->oti_declare_ops_rb[op]++;
903 /* all future updates are considered rollback */
904 oti->oti_rollback = true;
905 rb = osd_trans_declare_op2rb[op];
906 LASSERTF(rb < OSD_OT_MAX, "op = %u\n", op);
907 LASSERTF(oti->oti_declare_ops_rb[rb] > 0, "rb = %u\n", rb);
908 oti->oti_declare_ops_rb[rb]--;
912 static inline void osd_trans_declare_rb(const struct lu_env *env,
913 struct thandle *th, unsigned int op)
915 struct osd_thread_info *oti = osd_oti_get(env);
916 struct osd_thandle *oh = container_of(th, struct osd_thandle,
919 LASSERT(oh->ot_handle != NULL);
920 LASSERT(op < OSD_OT_MAX);
922 oti->oti_declare_ops_rb[op]++;
925 static inline void osd_trans_declare_op(const struct lu_env *env,
926 struct osd_thandle *oh,
927 unsigned int op, int credits)
929 oh->ot_credits += credits;
932 static inline void osd_trans_exec_op(const struct lu_env *env,
933 struct thandle *th, unsigned int op)
937 static inline void osd_trans_declare_rb(const struct lu_env *env,
938 struct thandle *th, unsigned int op)
944 * Helper function to pack the fid, ldiskfs stores fid in packed format.
947 void osd_fid_pack(struct osd_fid_pack *pack, const struct dt_rec *fid,
948 struct lu_fid *befider)
950 fid_cpu_to_be(befider, (struct lu_fid *)fid);
951 memcpy(pack->fp_area, befider, sizeof(*befider));
952 pack->fp_len = sizeof(*befider) + 1;
956 int osd_fid_unpack(struct lu_fid *fid, const struct osd_fid_pack *pack)
961 switch (pack->fp_len) {
962 case sizeof *fid + 1:
963 memcpy(fid, pack->fp_area, sizeof *fid);
964 fid_be_to_cpu(fid, fid);
967 CERROR("Unexpected packed fid size: %d\n", pack->fp_len);
974 * Quota/Accounting handling
976 extern const struct dt_index_operations osd_acct_index_ops;
977 int osd_acct_obj_lookup(struct osd_thread_info *info, struct osd_device *osd,
978 const struct lu_fid *fid, struct osd_inode_id *id);
980 /* copy from fs/ext4/dir.c */
981 static inline int is_32bit_api(void)
984 return is_compat_task();
986 return (BITS_PER_LONG == 32);
990 static inline loff_t ldiskfs_get_htree_eof(struct file *filp)
992 if ((filp->f_mode & FMODE_32BITHASH) ||
993 (!(filp->f_mode & FMODE_64BITHASH) && is_32bit_api()))
994 return LDISKFS_HTREE_EOF_32BIT;
996 return LDISKFS_HTREE_EOF_64BIT;
999 #endif /* __KERNEL__ */
1000 #endif /* _OSD_INTERNAL_H */