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, 2013, 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
48 #include <linux/mutex.h>
49 /* struct rw_semaphore */
50 #include <linux/rwsem.h>
52 #include <linux/dcache.h>
54 #include <linux/dirent.h>
55 #include <linux/statfs.h>
56 #include <ldiskfs/ldiskfs.h>
57 #include <ldiskfs/ldiskfs_jbd2.h>
61 /* class_register_type(), class_unregister_type(), class_get_type() */
62 #include <obd_class.h>
63 #include <lustre_disk.h>
64 #include <dt_object.h>
65 #include <lustre_quota.h>
69 #include "osd_scrub.h"
70 #include "osd_quota_fmt.h"
73 extern struct kmem_cache *dynlock_cachep;
75 #define OSD_COUNTERS (0)
77 /* ldiskfs special inode::i_state_flags need to be accessed with
78 * ldiskfs_{set,clear,test}_inode_state() only */
80 /* OI scrub should skip this inode. */
81 #define LDISKFS_STATE_LUSTRE_NOSCRUB 31
83 /** Enable thandle usage statistics */
84 #define OSD_THANDLE_STATS (0)
86 #define MAX_OBJID_GROUP (FID_SEQ_ECHO + 1)
88 #define OBJECTS "OBJECTS"
89 #define ADMIN_USR "admin_quotafile_v2.usr"
90 #define ADMIN_GRP "admin_quotafile_v2.grp"
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 struct list_head 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 struct list_head om_seq_list; /* list head for seq */
157 struct mutex om_dir_init_mutex;
161 struct dentry *om_root; /* AGENT/<index> */
162 obd_seq om_index; /* mdt index */
163 struct list_head om_list; /* list to omm_list */
166 struct osd_mdobj_map {
167 struct dentry *omm_remote_parent;
170 #define osd_ldiskfs_add_entry(handle, child, cinode, hlock) \
171 ldiskfs_add_entry(handle, child, cinode, hlock)
173 #define OSD_OTABLE_IT_CACHE_SIZE 64
174 #define OSD_OTABLE_IT_CACHE_MASK (~(OSD_OTABLE_IT_CACHE_SIZE - 1))
176 struct osd_inconsistent_item {
177 /* link into osd_scrub::os_inconsistent_items,
178 * protected by osd_scrub::os_lock. */
179 struct list_head oii_list;
181 /* The right FID <=> ino#/gen mapping. */
182 struct osd_idmap_cache oii_cache;
184 unsigned int oii_insert:1; /* insert or update mapping. */
187 struct osd_otable_cache {
188 struct osd_idmap_cache ooc_cache[OSD_OTABLE_IT_CACHE_SIZE];
190 /* Index for next cache slot to be filled. */
191 int ooc_producer_idx;
193 /* Index for next cache slot to be returned by it::next(). */
194 int ooc_consumer_idx;
196 /* How many items in ooc_cache. */
197 int ooc_cached_items;
199 /* Position for up layer LFSCK iteration pre-loading. */
200 __u32 ooc_pos_preload;
203 struct osd_otable_it {
204 struct osd_device *ooi_dev;
205 struct osd_otable_cache ooi_cache;
207 /* The following bits can be updated/checked w/o lock protection.
208 * If more bits will be introduced in the future and need lock to
209 * protect, please add comment. */
210 unsigned long ooi_used_outside:1, /* Some user out of OSD
211 * uses the iteration. */
212 ooi_all_cached:1, /* No more entries can be
213 * filled into cache. */
214 ooi_user_ready:1, /* The user out of OSD is
215 * ready to iterate. */
216 ooi_waiting:1; /* it::next is waiting. */
224 struct dt_device od_dt_dev;
225 /* information about underlying file system */
226 struct vfsmount *od_mnt;
228 struct osd_oi **od_oi_table;
229 /* total number of OI containers */
234 unsigned int od_fl_capa:1,
241 od_lma_self_repair:1;
243 unsigned long od_capa_timeout;
245 struct lustre_capa_key *od_capa_keys;
246 struct hlist_head *od_capa_hash;
248 struct proc_dir_entry *od_proc_entry;
249 struct lprocfs_stats *od_stats;
251 spinlock_t od_osfs_lock;
254 struct lu_site od_site;
256 struct osd_obj_map *od_ost_map;
257 struct osd_mdobj_map *od_mdt_map;
259 unsigned long long od_readcache_max_filesize;
261 int od_writethrough_cache;
263 struct brw_stats od_brw_stats;
264 atomic_t od_r_in_flight;
265 atomic_t od_w_in_flight;
267 struct mutex od_otable_mutex;
268 struct osd_otable_it *od_otable_it;
269 struct osd_scrub od_scrub;
270 struct list_head od_ios_list;
272 /* service name associated with the osd device */
273 char od_svname[MAX_OBD_NAME];
274 char od_mntdev[MAX_OBD_NAME];
276 /* quota slave instance */
277 struct qsd_instance *od_quota_slave;
279 /* osd seq instance */
280 struct lu_client_seq *od_cl_seq;
281 /* If the ratio of "the total OI mappings count" vs
282 * "the bad OI mappings count" is lower than the
283 * osd_device::od_full_scrub_ratio, then trigger
284 * OI scrub to scan the whole the device. */
285 __u64 od_full_scrub_ratio;
286 /* If the speed of found bad OI mappings (per minute)
287 * exceeds the osd_device::od_full_scrub_speed, then
288 * trigger OI scrub to scan the whole the device. */
289 __u64 od_full_scrub_speed;
292 enum osd_full_scrub_ratio {
293 /* Trigger OI scrub to scan the whole device directly. */
296 /* Because the bad OI mappings count cannot be larger than
297 * the total OI mappints count, then setting OFSR_NEVER means
298 * that the whole device scanning cannot be triggered by auto
299 * detected bad OI mappings during the RPC services. */
301 OFSR_DEFAULT = 10000,
304 #define FULL_SCRUB_SPEED_DEFULT 60
306 /* There are at most 10 uid/gids are affected in a transaction, and
307 * that's rename case:
308 * - 2 for source parent uid & gid;
309 * - 2 for source child uid & gid ('..' entry update when child is directory);
310 * - 2 for target parent uid & gid;
311 * - 2 for target child uid & gid (if the target child exists);
312 * - 2 for root uid & gid (last_rcvd, llog, etc);
314 * The 0 to (OSD_MAX_UGID_CNT - 1) bits of ot_id_type is for indicating
315 * the id type of each id in the ot_id_array.
317 #define OSD_MAX_UGID_CNT 10
322 OSD_OT_XATTR_SET = 2,
336 struct thandle ot_super;
338 struct ldiskfs_journal_cb_entry ot_jcb;
339 struct list_head ot_dcb_list;
340 /* Link to the device, for debugging. */
341 struct lu_ref_link ot_dev_link;
342 unsigned short ot_credits;
343 unsigned short ot_id_cnt;
344 unsigned short ot_id_type;
345 uid_t ot_id_array[OSD_MAX_UGID_CNT];
346 struct lquota_trans *ot_quota_trans;
347 #if OSD_THANDLE_STATS
348 /** time when this handle was allocated */
349 cfs_time_t oth_alloced;
351 /** time when this thanle was started */
352 cfs_time_t oth_started;
357 * Basic transaction credit op
380 LPROC_OSD_READ_BYTES = 0,
381 LPROC_OSD_WRITE_BYTES = 1,
382 LPROC_OSD_GET_PAGE = 2,
383 LPROC_OSD_NO_PAGE = 3,
384 LPROC_OSD_CACHE_ACCESS = 4,
385 LPROC_OSD_CACHE_HIT = 5,
386 LPROC_OSD_CACHE_MISS = 6,
388 #if OSD_THANDLE_STATS
389 LPROC_OSD_THANDLE_STARTING,
390 LPROC_OSD_THANDLE_OPEN,
391 LPROC_OSD_THANDLE_CLOSING,
398 * Storage representation for fids.
400 * Variable size, first byte contains the length of the whole record.
402 struct osd_fid_pack {
403 unsigned char fp_len;
404 char fp_area[sizeof(struct lu_fid)];
407 struct osd_it_ea_dirent {
408 struct lu_fid oied_fid;
411 unsigned short oied_namelen;
412 unsigned int oied_type;
414 } __attribute__((packed));
417 * as osd_it_ea_dirent (in memory dirent struct for osd) is greater
418 * than lu_dirent struct. osd readdir reads less number of dirent than
419 * required for mdd dir page. so buffer size need to be increased so that
420 * there would be one ext3 readdir for every mdd readdir page.
423 #define OSD_IT_EA_BUFSIZE (PAGE_CACHE_SIZE + PAGE_CACHE_SIZE/4)
426 * This is iterator's in-memory data structure in interoperability
427 * mode (i.e. iterator over ldiskfs style directory)
430 struct osd_object *oie_obj;
431 /** used in ldiskfs iterator, to stored file pointer */
432 struct file oie_file;
433 /** how many entries have been read-cached from storage */
435 /** current entry is being iterated by caller */
437 /** current processing entry */
438 struct osd_it_ea_dirent *oie_dirent;
439 /** buffer to hold entries, size == OSD_IT_EA_BUFSIZE */
444 * Iterator's in-memory data structure for IAM mode.
447 struct osd_object *oi_obj;
448 struct iam_path_descr *oi_ipd;
449 struct iam_iterator oi_it;
452 struct osd_quota_leaf {
453 struct list_head oql_link;
458 * Iterator's in-memory data structure for quota file.
460 struct osd_it_quota {
461 struct osd_object *oiq_obj;
462 /** tree blocks path to where the entry is stored */
463 uint oiq_blk[LUSTRE_DQTREEDEPTH + 1];
464 /** on-disk offset for current key where quota record can be found */
466 /** identifier for current quota record */
468 /** the record index in the leaf/index block */
469 uint oiq_index[LUSTRE_DQTREEDEPTH + 1];
470 /** list of already processed leaf blocks */
471 struct list_head oiq_list;
474 #define MAX_BLOCKS_PER_PAGE (PAGE_CACHE_SIZE / 512)
477 wait_queue_head_t dr_wait;
478 atomic_t dr_numreqs; /* number of reqs being processed */
483 unsigned int dr_ignore_quota:1;
484 unsigned int dr_elapsed_valid:1; /* we really did count time */
485 unsigned int dr_rw:1;
486 struct lu_buf dr_pg_buf;
487 struct page **dr_pages;
488 struct lu_buf dr_bl_buf;
489 unsigned long *dr_blocks;
490 unsigned long dr_start_time;
491 unsigned long dr_elapsed; /* how long io took */
492 struct osd_device *dr_dev;
493 unsigned int dr_init_at; /* the line iobuf was initialized */
496 struct osd_thread_info {
497 const struct lu_env *oti_env;
499 * used for index operations.
501 struct dentry oti_obj_dentry;
502 struct dentry oti_child_dentry;
504 /** dentry for Iterator context. */
505 struct dentry oti_it_dentry;
506 struct htree_lock *oti_hlock;
508 struct lu_fid oti_fid;
509 struct lu_fid oti_fid2;
510 struct lu_fid oti_fid3;
511 struct osd_inode_id oti_id;
512 struct osd_inode_id oti_id2;
513 struct osd_inode_id oti_id3;
514 struct ost_id oti_ostid;
517 * XXX temporary: for ->i_op calls.
519 struct timespec oti_time;
521 * XXX temporary: fake struct file for osd_object_sync
523 struct file oti_file;
525 * XXX temporary: for capa operations.
527 struct lustre_capa_key oti_capa_key;
528 struct lustre_capa oti_capa;
530 /** osd_device reference, initialized in osd_trans_start() and
531 used in osd_trans_stop() */
532 struct osd_device *oti_dev;
535 * following ipd and it structures are used for osd_index_iam_lookup()
536 * these are defined separately as we might do index operation
537 * in open iterator session.
540 /** osd iterator context used for iterator session */
543 struct osd_it_iam oti_it;
544 /* ldiskfs iterator data structure,
545 * see osd_it_ea_{init, fini} */
546 struct osd_it_ea oti_it_ea;
547 struct osd_it_quota oti_it_quota;
550 /** pre-allocated buffer used by oti_it_ea, size OSD_IT_EA_BUFSIZE */
553 struct kstatfs oti_ksfs;
555 /** IAM iterator for index operation. */
556 struct iam_iterator oti_idx_it;
558 /** union to guarantee that ->oti_ipd[] has proper alignment. */
560 char oti_it_ipd[DX_IPD_MAX_SIZE];
561 long long oti_alignment_lieutenant;
565 char oti_idx_ipd[DX_IPD_MAX_SIZE];
566 long long oti_alignment_lieutenant_colonel;
569 struct osd_idmap_cache oti_cache;
571 unsigned int oti_it_inline:1;
575 /** used in osd_fid_set() to put xattr */
576 struct lu_buf oti_buf;
577 struct lu_buf oti_big_buf;
578 /** used in osd_ea_fid_set() to set fid into common ea */
580 struct lustre_mdt_attrs oti_mdt_attrs;
581 /* old LMA for compatibility */
582 char oti_mdt_attrs_old[LMA_OLD_SIZE];
585 struct osd_iobuf oti_iobuf;
586 struct inode oti_inode;
587 #define OSD_FID_REC_SZ 32
588 char oti_ldp[OSD_FID_REC_SZ];
589 char oti_ldp2[OSD_FID_REC_SZ];
591 /* used by quota code */
593 #ifdef HAVE_DQUOT_FS_DISK_QUOTA
594 struct fs_disk_quota oti_fdq;
596 struct if_dqblk oti_dqblk;
598 struct if_dqinfo oti_dqinfo;
600 struct lquota_id_info oti_qi;
601 struct lquota_trans oti_quota_trans;
602 union lquota_rec oti_quota_rec;
604 struct lu_seq_range oti_seq_range;
606 /* Tracking for transaction credits, to allow debugging and optimizing
607 * cases where a large number of credits are being allocated for
608 * single transaction. */
609 unsigned short oti_declare_ops[OSD_OT_MAX];
610 unsigned short oti_declare_ops_rb[OSD_OT_MAX];
611 unsigned short oti_declare_ops_cred[OSD_OT_MAX];
616 struct filter_fid_old oti_ff;
617 struct filter_fid oti_ff_new;
621 extern int ldiskfs_pdo;
623 static inline int __osd_xattr_get(struct inode *inode, struct dentry *dentry,
624 const char *name, void *buf, int len)
629 dentry->d_inode = inode;
630 dentry->d_sb = inode->i_sb;
631 return inode->i_op->getxattr(dentry, name, buf, len);
634 static inline int __osd_xattr_set(struct osd_thread_info *info,
635 struct inode *inode, const char *name,
636 const void *buf, int buflen, int fl)
638 struct dentry *dentry = &info->oti_child_dentry;
640 ll_vfs_dq_init(inode);
641 dentry->d_inode = inode;
642 dentry->d_sb = inode->i_sb;
643 return inode->i_op->setxattr(dentry, name, buf, buflen, fl);
648 extern struct lprocfs_seq_vars lprocfs_osd_obd_vars[];
649 extern struct lprocfs_seq_vars lprocfs_osd_module_vars[];
650 int osd_procfs_init(struct osd_device *osd, const char *name);
651 int osd_procfs_fini(struct osd_device *osd);
652 void osd_brw_stats_update(struct osd_device *osd, struct osd_iobuf *iobuf);
655 int osd_statfs(const struct lu_env *env, struct dt_device *dev,
656 struct obd_statfs *sfs);
657 int osd_object_auth(const struct lu_env *env, struct dt_object *dt,
658 struct lustre_capa *capa, __u64 opc);
659 struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
660 struct osd_inode_id *id);
661 int osd_ea_fid_set(struct osd_thread_info *info, struct inode *inode,
662 const struct lu_fid *fid, __u32 compat, __u32 incompat);
663 int osd_get_lma(struct osd_thread_info *info, struct inode *inode,
664 struct dentry *dentry, struct lustre_mdt_attrs *lma);
665 void osd_add_oi_cache(struct osd_thread_info *info, struct osd_device *osd,
666 struct osd_inode_id *id, const struct lu_fid *fid);
667 int osd_get_idif(struct osd_thread_info *info, struct inode *inode,
668 struct dentry *dentry, struct lu_fid *fid);
670 int osd_obj_map_init(const struct lu_env *env, struct osd_device *osd);
671 void osd_obj_map_fini(struct osd_device *dev);
672 int osd_obj_map_lookup(struct osd_thread_info *info, struct osd_device *osd,
673 const struct lu_fid *fid, struct osd_inode_id *id);
674 int osd_obj_map_insert(struct osd_thread_info *info, struct osd_device *osd,
675 const struct lu_fid *fid, const struct osd_inode_id *id,
677 int osd_obj_map_delete(struct osd_thread_info *info, struct osd_device *osd,
678 const struct lu_fid *fid, handle_t *th);
679 int osd_obj_map_update(struct osd_thread_info *info, struct osd_device *osd,
680 const struct lu_fid *fid, const struct osd_inode_id *id,
682 int osd_obj_map_recover(struct osd_thread_info *info, struct osd_device *osd,
683 struct inode *src_parent, struct dentry *src_child,
684 const struct lu_fid *fid);
685 int osd_obj_spec_lookup(struct osd_thread_info *info, struct osd_device *osd,
686 const struct lu_fid *fid, struct osd_inode_id *id);
687 int osd_obj_spec_insert(struct osd_thread_info *info, struct osd_device *osd,
688 const struct lu_fid *fid, const struct osd_inode_id *id,
690 int osd_obj_spec_update(struct osd_thread_info *info, struct osd_device *osd,
691 const struct lu_fid *fid, const struct osd_inode_id *id,
694 void osd_scrub_file_reset(struct osd_scrub *scrub, __u8 *uuid, __u64 flags);
695 int osd_scrub_file_store(struct osd_scrub *scrub);
696 char *osd_lf_fid2name(const struct lu_fid *fid);
697 int osd_scrub_start(struct osd_device *dev, __u32 flags);
698 int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev);
699 void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev);
700 int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
702 int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid,
703 struct osd_inode_id *id);
704 int osd_scrub_dump(struct seq_file *m, struct osd_device *dev);
706 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
707 obd_seq seq, struct lu_seq_range *range);
709 int osd_delete_from_remote_parent(const struct lu_env *env,
710 struct osd_device *osd,
711 struct osd_object *obj,
712 struct osd_thandle *oh);
713 int osd_add_to_remote_parent(const struct lu_env *env, struct osd_device *osd,
714 struct osd_object *obj, struct osd_thandle *oh);
715 int osd_lookup_in_remote_parent(struct osd_thread_info *oti,
716 struct osd_device *osd,
717 const struct lu_fid *fid,
718 struct osd_inode_id *id);
720 int osd_ost_seq_exists(struct osd_thread_info *info, struct osd_device *osd,
722 /* osd_quota_fmt.c */
723 int walk_tree_dqentry(const struct lu_env *env, struct osd_object *obj,
724 int type, uint blk, int depth, uint index,
725 struct osd_it_quota *it);
726 int walk_block_dqentry(const struct lu_env *env, struct osd_object *obj,
727 int type, uint blk, uint index,
728 struct osd_it_quota *it);
729 loff_t find_tree_dqentry(const struct lu_env *env,
730 struct osd_object *obj, int type,
731 qid_t dqid, uint blk, int depth,
732 struct osd_it_quota *it);
734 int osd_declare_qid(const struct lu_env *env, struct osd_thandle *oh,
735 struct lquota_id_info *qi, struct osd_object *obj,
736 bool enforce, int *flags);
737 int osd_declare_inode_qid(const struct lu_env *env, qid_t uid, qid_t gid,
738 long long space, struct osd_thandle *oh,
739 struct osd_object *obj, bool is_blk, int *flags,
741 const struct dt_rec *osd_quota_pack(struct osd_object *obj,
742 const struct dt_rec *rec,
743 union lquota_rec *quota_rec);
744 void osd_quota_unpack(struct osd_object *obj, const struct dt_rec *rec);
745 int osd_quota_migration(const struct lu_env *env, struct dt_object *dt,
746 const struct dt_index_features *feat);
748 static inline bool is_quota_glb_feat(const struct dt_index_features *feat)
750 return (feat == &dt_quota_iusr_features ||
751 feat == &dt_quota_busr_features ||
752 feat == &dt_quota_igrp_features ||
753 feat == &dt_quota_bgrp_features) ? true : false;
756 #ifndef HAVE_I_UID_READ
757 static inline uid_t i_uid_read(const struct inode *inode)
762 static inline gid_t i_gid_read(const struct inode *inode)
767 static inline void i_uid_write(struct inode *inode, uid_t uid)
772 static inline void i_gid_write(struct inode *inode, gid_t gid)
779 * Invariants, assertions.
783 * XXX: do not enable this, until invariant checking code is made thread safe
784 * in the face of pdirops locking.
786 #define OSD_INVARIANT_CHECKS (0)
788 #if OSD_INVARIANT_CHECKS
789 static inline int osd_invariant(const struct osd_object *obj)
793 ergo(obj->oo_inode != NULL,
794 obj->oo_inode->i_sb == osd_sb(osd_obj2dev(obj)) &&
795 atomic_read(&obj->oo_inode->i_count) > 0) &&
796 ergo(obj->oo_dir != NULL &&
797 obj->oo_dir->od_conationer.ic_object != NULL,
798 obj->oo_dir->od_conationer.ic_object == obj->oo_inode);
801 #define osd_invariant(obj) (1)
804 #define OSD_MAX_CACHE_SIZE OBD_OBJECT_EOF
806 extern const struct dt_index_operations osd_otable_ops;
808 static inline int osd_oi_fid2idx(struct osd_device *dev,
809 const struct lu_fid *fid)
811 return fid->f_seq & (dev->od_oi_count - 1);
814 static inline struct osd_oi *osd_fid2oi(struct osd_device *osd,
815 const struct lu_fid *fid)
817 LASSERTF(!fid_is_idif(fid), DFID"\n", PFID(fid));
818 LASSERTF(!fid_is_last_id(fid), DFID"\n", PFID(fid));
819 LASSERTF(osd->od_oi_table != NULL && osd->od_oi_count >= 1,
820 DFID"\n", PFID(fid));
821 /* It can work even od_oi_count equals to 1 although it's unexpected,
822 * the only reason we set it to 1 is for performance measurement */
823 return osd->od_oi_table[osd_oi_fid2idx(osd, fid)];
826 extern const struct lu_device_operations osd_lu_ops;
828 static inline int lu_device_is_osd(const struct lu_device *d)
830 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &osd_lu_ops);
833 static inline struct osd_device *osd_dt_dev(const struct dt_device *d)
835 LASSERT(lu_device_is_osd(&d->dd_lu_dev));
836 return container_of0(d, struct osd_device, od_dt_dev);
839 static inline struct osd_device *osd_dev(const struct lu_device *d)
841 LASSERT(lu_device_is_osd(d));
842 return osd_dt_dev(container_of0(d, struct dt_device, dd_lu_dev));
845 static inline struct osd_device *osd_obj2dev(const struct osd_object *o)
847 return osd_dev(o->oo_dt.do_lu.lo_dev);
850 static inline struct super_block *osd_sb(const struct osd_device *dev)
852 return dev->od_mnt->mnt_sb;
855 static inline int osd_object_is_root(const struct osd_object *obj)
857 return osd_sb(osd_obj2dev(obj))->s_root->d_inode == obj->oo_inode;
860 static inline struct osd_object *osd_obj(const struct lu_object *o)
862 LASSERT(lu_device_is_osd(o->lo_dev));
863 return container_of0(o, struct osd_object, oo_dt.do_lu);
866 static inline struct osd_object *osd_dt_obj(const struct dt_object *d)
868 return osd_obj(&d->do_lu);
871 static inline struct lu_device *osd2lu_dev(struct osd_device *osd)
873 return &osd->od_dt_dev.dd_lu_dev;
876 static inline journal_t *osd_journal(const struct osd_device *dev)
878 return LDISKFS_SB(osd_sb(dev))->s_journal;
881 static inline struct seq_server_site *osd_seq_site(struct osd_device *osd)
883 return osd->od_dt_dev.dd_lu_dev.ld_site->ld_seq_site;
886 static inline char *osd_name(struct osd_device *osd)
888 return osd->od_dt_dev.dd_lu_dev.ld_obd->obd_name;
891 extern const struct dt_body_operations osd_body_ops;
892 extern struct lu_context_key osd_key;
894 static inline struct osd_thread_info *osd_oti_get(const struct lu_env *env)
896 return lu_context_key_get(&env->le_ctx, &osd_key);
899 extern const struct dt_body_operations osd_body_ops_new;
905 struct iam_path_descr *osd_it_ipd_get(const struct lu_env *env,
906 const struct iam_container *bag)
908 return bag->ic_descr->id_ops->id_ipd_alloc(bag,
909 osd_oti_get(env)->oti_it_ipd);
913 struct iam_path_descr *osd_idx_ipd_get(const struct lu_env *env,
914 const struct iam_container *bag)
916 return bag->ic_descr->id_ops->id_ipd_alloc(bag,
917 osd_oti_get(env)->oti_idx_ipd);
920 static inline void osd_ipd_put(const struct lu_env *env,
921 const struct iam_container *bag,
922 struct iam_path_descr *ipd)
924 bag->ic_descr->id_ops->id_ipd_free(ipd);
927 int osd_ldiskfs_read(struct inode *inode, void *buf, int size, loff_t *offs);
928 int osd_ldiskfs_write_record(struct inode *inode, void *buf, int bufsize,
929 int write_NUL, loff_t *offs, handle_t *handle);
932 struct dentry *osd_child_dentry_by_inode(const struct lu_env *env,
934 const char *name, const int namelen)
936 struct osd_thread_info *info = osd_oti_get(env);
937 struct dentry *child_dentry = &info->oti_child_dentry;
938 struct dentry *obj_dentry = &info->oti_obj_dentry;
940 obj_dentry->d_inode = inode;
941 obj_dentry->d_sb = inode->i_sb;
942 obj_dentry->d_name.hash = 0;
944 child_dentry->d_name.hash = 0;
945 child_dentry->d_parent = obj_dentry;
946 child_dentry->d_name.name = name;
947 child_dentry->d_name.len = namelen;
951 extern int osd_trans_declare_op2rb[];
952 extern int ldiskfs_track_declares_assert;
954 static inline void osd_trans_declare_op(const struct lu_env *env,
955 struct osd_thandle *oh,
956 unsigned int op, int credits)
958 struct osd_thread_info *oti = osd_oti_get(env);
960 LASSERT(oh->ot_handle == NULL);
961 if (unlikely(op >= OSD_OT_MAX)) {
962 if (unlikely(ldiskfs_track_declares_assert)) {
963 LASSERT(op < OSD_OT_MAX);
965 CWARN("%s: Invalid operation index %d\n",
966 osd_name(oti->oti_dev), op);
967 libcfs_debug_dumpstack(NULL);
970 oti->oti_declare_ops[op]++;
971 oti->oti_declare_ops_cred[op] += credits;
973 oh->ot_credits += credits;
976 static inline void osd_trans_exec_op(const struct lu_env *env,
977 struct thandle *th, unsigned int op)
979 struct osd_thread_info *oti = osd_oti_get(env);
980 struct osd_thandle *oh = container_of(th, struct osd_thandle,
984 LASSERT(oh->ot_handle != NULL);
985 if (unlikely(op >= OSD_OT_MAX)) {
986 if (unlikely(ldiskfs_track_declares_assert))
987 LASSERT(op < OSD_OT_MAX);
989 CWARN("%s: Invalid operation index %d\n",
990 osd_name(oti->oti_dev), op);
991 libcfs_debug_dumpstack(NULL);
996 if (likely(!oti->oti_rollback && oti->oti_declare_ops[op] > 0)) {
997 oti->oti_declare_ops[op]--;
998 oti->oti_declare_ops_rb[op]++;
1000 /* all future updates are considered rollback */
1001 oti->oti_rollback = true;
1002 rb = osd_trans_declare_op2rb[op];
1003 if (unlikely(rb >= OSD_OT_MAX)) {
1004 if (unlikely(ldiskfs_track_declares_assert))
1005 LASSERTF(rb < OSD_OT_MAX, "rb = %u\n", rb);
1007 CWARN("%s: Invalid rollback index %d\n",
1008 osd_name(oti->oti_dev), rb);
1009 libcfs_debug_dumpstack(NULL);
1013 if (unlikely(oti->oti_declare_ops_rb[rb] == 0)) {
1014 if (unlikely(ldiskfs_track_declares_assert))
1015 LASSERTF(oti->oti_declare_ops_rb[rb] > 0,
1018 CWARN("%s: Overflow in tracking declares for "
1020 osd_name(oti->oti_dev), rb);
1021 libcfs_debug_dumpstack(NULL);
1025 oti->oti_declare_ops_rb[rb]--;
1029 static inline void osd_trans_declare_rb(const struct lu_env *env,
1030 struct thandle *th, unsigned int op)
1032 struct osd_thread_info *oti = osd_oti_get(env);
1033 struct osd_thandle *oh = container_of(th, struct osd_thandle,
1036 LASSERT(oh->ot_handle != NULL);
1037 if (unlikely(op >= OSD_OT_MAX)) {
1038 if (unlikely(ldiskfs_track_declares_assert))
1039 LASSERT(op < OSD_OT_MAX);
1041 CWARN("%s: Invalid operation index %d\n",
1042 osd_name(oti->oti_dev), op);
1043 libcfs_debug_dumpstack(NULL);
1047 oti->oti_declare_ops_rb[op]++;
1052 * Helper function to pack the fid, ldiskfs stores fid in packed format.
1055 void osd_fid_pack(struct osd_fid_pack *pack, const struct dt_rec *fid,
1056 struct lu_fid *befider)
1058 fid_cpu_to_be(befider, (struct lu_fid *)fid);
1059 memcpy(pack->fp_area, befider, sizeof(*befider));
1060 pack->fp_len = sizeof(*befider) + 1;
1064 int osd_fid_unpack(struct lu_fid *fid, const struct osd_fid_pack *pack)
1069 switch (pack->fp_len) {
1070 case sizeof *fid + 1:
1071 memcpy(fid, pack->fp_area, sizeof *fid);
1072 fid_be_to_cpu(fid, fid);
1075 CERROR("Unexpected packed fid size: %d\n", pack->fp_len);
1082 * Quota/Accounting handling
1084 extern const struct dt_index_operations osd_acct_index_ops;
1085 int osd_acct_obj_lookup(struct osd_thread_info *info, struct osd_device *osd,
1086 const struct lu_fid *fid, struct osd_inode_id *id);
1088 /* copy from fs/ext4/dir.c */
1089 static inline int is_32bit_api(void)
1091 #ifdef CONFIG_COMPAT
1092 return is_compat_task();
1094 return (BITS_PER_LONG == 32);
1098 static inline loff_t ldiskfs_get_htree_eof(struct file *filp)
1100 if ((filp->f_mode & FMODE_32BITHASH) ||
1101 (!(filp->f_mode & FMODE_64BITHASH) && is_32bit_api()))
1102 return LDISKFS_HTREE_EOF_32BIT;
1104 return LDISKFS_HTREE_EOF_64BIT;
1107 static inline int fid_is_internal(const struct lu_fid *fid)
1109 return (!fid_is_namespace_visible(fid) && !fid_is_idif(fid));
1112 static inline unsigned long osd_remote_parent_ino(struct osd_device *dev)
1114 return dev->od_mdt_map->omm_remote_parent->d_inode->i_ino;
1117 #ifdef JOURNAL_START_HAS_3ARGS
1118 # define osd_journal_start_sb(sb, type, nblock) \
1119 ldiskfs_journal_start_sb(sb, type, nblock)
1120 # define osd_ldiskfs_append(handle, inode, nblock, err) \
1121 ldiskfs_append(handle, inode, nblock)
1122 # define osd_ldiskfs_find_entry(dir, name, de, inlined, lock) \
1123 ldiskfs_find_entry(dir, name, de, inlined, lock)
1124 # define osd_journal_start(inode, type, nblocks) \
1125 ldiskfs_journal_start(inode, type, nblocks)
1126 # define osd_transaction_size(dev) \
1127 (osd_journal(dev)->j_max_transaction_buffers / 2)
1129 # define LDISKFS_HT_MISC 0
1130 # define osd_journal_start_sb(sb, type, nblock) \
1131 ldiskfs_journal_start_sb(sb, nblock)
1132 # define osd_ldiskfs_append(handle, inode, nblock, err) \
1133 ldiskfs_append(handle, inode, nblock, err)
1134 # define osd_ldiskfs_find_entry(dir, name, de, inlined, lock) \
1135 ldiskfs_find_entry(dir, name, de, lock)
1136 # define osd_journal_start(inode, type, nblocks) \
1137 ldiskfs_journal_start(inode, nblocks)
1138 # define osd_transaction_size(dev) \
1139 (osd_journal(dev)->j_max_transaction_buffers)
1142 void ldiskfs_inc_count(handle_t *handle, struct inode *inode);
1143 void ldiskfs_dec_count(handle_t *handle, struct inode *inode);
1145 void osd_fini_iobuf(struct osd_device *d, struct osd_iobuf *iobuf);
1147 #endif /* _OSD_INTERNAL_H */