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.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/osd/osd_internal.h
34 * Shared definitions and declarations for osd module
36 * Author: Nikita Danilov <nikita@clusterfs.com>
39 #ifndef _OSD_INTERNAL_H
40 #define _OSD_INTERNAL_H
44 #include <linux/mutex.h>
45 /* struct rw_semaphore */
46 #include <linux/rwsem.h>
48 #include <linux/dcache.h>
50 #include <linux/dirent.h>
51 #include <linux/statfs.h>
52 #include <linux/bio.h>
53 #include <ldiskfs/ldiskfs.h>
54 #include <ldiskfs/ldiskfs_jbd2.h>
58 /* class_register_type(), class_unregister_type(), class_get_type() */
59 #include <obd_class.h>
60 #include <lustre_disk.h>
61 #include <dt_object.h>
62 #include <lustre_quota.h>
66 #include "osd_scrub.h"
67 #include "osd_quota_fmt.h"
70 extern struct kmem_cache *dynlock_cachep;
72 #define OSD_COUNTERS (0)
74 /* ldiskfs special inode::i_state_flags need to be accessed with
75 * ldiskfs_{set,clear,test}_inode_state() only */
77 /* OI scrub should skip this inode. */
78 #define LDISKFS_STATE_LUSTRE_NOSCRUB 31
79 #define LDISKFS_STATE_LUSTRE_DESTROY 30
81 /** Enable thandle usage statistics */
82 #define OSD_THANDLE_STATS (0)
84 #define MAX_OBJID_GROUP (FID_SEQ_ECHO + 1)
86 #define OBJECTS "OBJECTS"
87 #define ADMIN_USR "admin_quotafile_v2.usr"
88 #define ADMIN_GRP "admin_quotafile_v2.grp"
90 /* Statfs space reservation for fragmentation and local objects */
91 #define OSD_STATFS_RESERVED (1ULL << 23) /* 8MB */
92 #define OSD_STATFS_RESERVED_SHIFT (7) /* reserve 0.78% of all space */
94 /* check if ldiskfs support project quota */
95 #ifndef LDISKFS_IOC_FSSETXATTR
96 #undef HAVE_PROJECT_QUOTA
99 #define OBD_BRW_MAPPED OBD_BRW_LOCAL1
101 struct osd_directory {
102 struct iam_container od_container;
103 struct iam_descr od_descr;
107 * Object Index (oi) instance.
111 * underlying index object, where fid->id mapping in stored.
113 struct inode *oi_inode;
114 struct osd_directory oi_dir;
117 extern const int osd_dto_credits_noquota[];
120 struct dt_object oo_dt;
122 * Inode for file system object represented by this osd_object. This
123 * inode is pinned for the whole duration of lu_object life.
125 * Not modified concurrently (either setup early during object
126 * creation, or assigned by osd_create() under write lock).
128 struct inode *oo_inode;
130 * to protect index ops.
132 struct htree_lock_head *oo_hl_head;
133 struct rw_semaphore oo_ext_idx_sem;
134 struct rw_semaphore oo_sem;
135 struct osd_directory *oo_dir;
136 /** protects inode attributes. */
140 * Following two members *compat_dot* are used to indicate
141 * the presence of dot and dotdot in the given directory.
142 * This is required for interop mode (b11826).
144 __u32 oo_destroyed:1,
146 oo_compat_dot_created:1,
147 oo_compat_dotdot_created:1;
149 /* the i_flags in LMA */
152 const struct lu_env *oo_owner;
154 struct list_head oo_xattr_list;
155 struct lu_object_header *oo_header;
159 /* protects on-fly initialization */
160 int oos_subdir_count; /* subdir count for each seq */
161 struct dentry *oos_root; /* O/<seq> */
162 struct dentry **oos_dirs; /* O/<seq>/d0-dXX */
163 u64 oos_seq; /* seq number */
164 struct list_head oos_seq_list; /* list to seq_list */
168 struct dentry *om_root; /* dentry for /O */
169 rwlock_t om_seq_list_lock; /* lock for seq_list */
170 struct list_head om_seq_list; /* list head for seq */
172 struct mutex om_dir_init_mutex;
176 struct dentry *om_root; /* AGENT/<index> */
177 u64 om_index; /* mdt index */
178 struct list_head om_list; /* list to omm_list */
181 struct osd_mdobj_map {
182 struct dentry *omm_remote_parent;
184 int osd_ldiskfs_add_entry(struct osd_thread_info *info, struct osd_device *osd,
185 handle_t *handle, struct dentry *child,
186 struct inode *inode, struct htree_lock *hlock);
188 #define OSD_OTABLE_IT_CACHE_SIZE 64
189 #define OSD_OTABLE_IT_CACHE_MASK (~(OSD_OTABLE_IT_CACHE_SIZE - 1))
191 struct osd_inconsistent_item {
192 /* link into lustre_scrub::os_inconsistent_items,
193 * protected by lustre_scrub::os_lock. */
194 struct list_head oii_list;
196 /* The right FID <=> ino#/gen mapping. */
197 struct osd_idmap_cache oii_cache;
199 unsigned int oii_insert:1; /* insert or update mapping. */
202 struct osd_otable_cache {
203 struct osd_idmap_cache ooc_cache[OSD_OTABLE_IT_CACHE_SIZE];
205 /* Index for next cache slot to be filled. */
206 int ooc_producer_idx;
208 /* Index for next cache slot to be returned by it::next(). */
209 int ooc_consumer_idx;
211 /* How many items in ooc_cache. */
212 __u64 ooc_cached_items;
214 /* Position for up layer LFSCK iteration pre-loading. */
215 __u64 ooc_pos_preload;
218 struct osd_otable_it {
219 struct osd_device *ooi_dev;
220 struct osd_otable_cache ooi_cache;
221 struct osd_iit_param ooi_iit_param;
223 /* The following bits can be updated/checked w/o lock protection.
224 * If more bits will be introduced in the future and need lock to
225 * protect, please add comment. */
226 unsigned long ooi_used_outside:1, /* Some user out of OSD
227 * uses the iteration. */
228 ooi_all_cached:1, /* No more entries can be
229 * filled into cache. */
230 ooi_user_ready:1, /* The user out of OSD is
231 * ready to iterate. */
232 ooi_waiting:1; /* it::next is waiting. */
235 struct osd_obj_orphan {
236 struct list_head oor_list;
237 struct lu_env *oor_env; /* to identify "own" records */
242 OSD_T10_TYPE_UNKNOWN = 0,
254 struct dt_device od_dt_dev;
255 /* information about underlying file system */
256 struct vfsmount *od_mnt;
258 struct osd_oi **od_oi_table;
259 /* total number of OI containers */
264 unsigned int od_fl_capa:1,
274 __s64 od_auto_scrub_interval;
275 __u32 od_dirent_journal;
277 struct proc_dir_entry *od_proc_entry;
278 struct lprocfs_stats *od_stats;
280 spinlock_t od_osfs_lock;
283 struct lu_site od_site;
285 struct osd_obj_map *od_ost_map;
286 struct osd_mdobj_map *od_mdt_map;
288 unsigned long long od_readcache_max_filesize;
290 int od_writethrough_cache;
292 struct brw_stats od_brw_stats;
293 atomic_t od_r_in_flight;
294 atomic_t od_w_in_flight;
296 struct mutex od_otable_mutex;
297 struct osd_otable_it *od_otable_it;
298 struct osd_scrub od_scrub;
299 struct list_head od_ios_list;
301 /* service name associated with the osd device */
302 char od_svname[MAX_OBD_NAME];
303 char od_mntdev[MAX_OBD_NAME];
305 /* quota slave instance for inode */
306 struct qsd_instance *od_quota_slave_md;
308 /* quota slave instance for block */
309 struct qsd_instance *od_quota_slave_dt;
311 /* osd seq instance */
312 struct lu_client_seq *od_cl_seq;
313 /* If the ratio of "the total OI mappings count" vs
314 * "the bad OI mappings count" is lower than the
315 * osd_device::od_full_scrub_ratio, then trigger
316 * OI scrub to scan the whole the device. */
317 __u64 od_full_scrub_ratio;
318 /* If the speed of found bad OI mappings (per minute)
319 * exceeds the osd_device::od_full_scrub_threshold_rate,
320 * then trigger OI scrub to scan the whole device. */
321 __u64 od_full_scrub_threshold_rate;
323 /* a list of orphaned agent inodes, protected with od_osfs_lock */
324 struct list_head od_orphan_list;
325 struct list_head od_index_backup_list;
326 struct list_head od_index_restore_list;
328 struct inode *od_index_backup_inode;
329 enum lustre_index_backup_policy od_index_backup_policy;
330 int od_index_backup_stop;
331 /* T10PI type, zero if not supported */
332 enum osd_t10_type od_t10_type;
335 static inline struct qsd_instance *osd_def_qsd(struct osd_device *osd)
338 return osd->od_quota_slave_dt;
340 return osd->od_quota_slave_md;
343 enum osd_full_scrub_ratio {
344 /* Trigger OI scrub to scan the whole device directly. */
347 /* Because the bad OI mappings count cannot be larger than
348 * the total OI mappints count, then setting OFSR_NEVER means
349 * that the whole device scanning cannot be triggered by auto
350 * detected bad OI mappings during the RPC services. */
352 OFSR_DEFAULT = 10000,
355 #define FULL_SCRUB_THRESHOLD_RATE_DEFAULT 60
357 /* There are at most 15 uid/gid/projids are affected in a transaction, and
358 * that's rename case:
359 * - 3 for source parent uid & gid & projid;
360 * - 3 for source child uid & gid & projid ('..' entry update when
361 * child is directory);
362 * - 3 for target parent uid & gid & projid;
363 * - 3 for target child uid & gid & projid(if the target child exists);
364 * - 3 for root uid & gid(last_rcvd, llog, etc);
367 #define OSD_MAX_UGID_CNT 15
372 OSD_OT_XATTR_SET = 2,
384 struct osd_access_lock {
385 struct list_head tl_list;
386 struct osd_object *tl_obj;
392 struct thandle ot_super;
394 struct ldiskfs_journal_cb_entry ot_jcb;
395 struct list_head ot_commit_dcb_list;
396 struct list_head ot_stop_dcb_list;
397 /* Link to the device, for debugging. */
398 struct lu_ref_link ot_dev_link;
399 unsigned int ot_credits;
401 /* quota IDs related to the transaction */
402 unsigned short ot_id_cnt;
403 __u8 ot_id_res[OSD_MAX_UGID_CNT];
404 __u8 ot_id_types[OSD_MAX_UGID_CNT];
405 uid_t ot_id_array[OSD_MAX_UGID_CNT];
406 struct lquota_trans *ot_quota_trans;
408 unsigned int ot_remove_agents:1;
409 #if OSD_THANDLE_STATS
410 /** time when this handle was allocated */
413 /** time when this thanle was started */
416 struct list_head ot_trunc_locks;
420 * Basic transaction credit op
441 #ifdef CONFIG_PROC_FS
443 LPROC_OSD_READ_BYTES = 0,
444 LPROC_OSD_WRITE_BYTES = 1,
445 LPROC_OSD_GET_PAGE = 2,
446 LPROC_OSD_NO_PAGE = 3,
447 LPROC_OSD_CACHE_ACCESS = 4,
448 LPROC_OSD_CACHE_HIT = 5,
449 LPROC_OSD_CACHE_MISS = 6,
451 #if OSD_THANDLE_STATS
452 LPROC_OSD_THANDLE_STARTING,
453 LPROC_OSD_THANDLE_OPEN,
454 LPROC_OSD_THANDLE_CLOSING,
461 * Storage representation for fids.
463 * Variable size, first byte contains the length of the whole record.
465 struct osd_fid_pack {
466 unsigned char fp_len;
467 char fp_area[sizeof(struct lu_fid)];
470 struct osd_it_ea_dirent {
471 struct lu_fid oied_fid;
474 unsigned short oied_namelen;
475 unsigned int oied_type;
477 } __attribute__((packed));
480 * as osd_it_ea_dirent (in memory dirent struct for osd) is greater
481 * than lu_dirent struct. osd readdir reads less number of dirent than
482 * required for mdd dir page. so buffer size need to be increased so that
483 * there would be one ext3 readdir for every mdd readdir page.
486 #define OSD_IT_EA_BUFSIZE (PAGE_SIZE + PAGE_SIZE/4)
489 * This is iterator's in-memory data structure in interoperability
490 * mode (i.e. iterator over ldiskfs style directory)
493 struct osd_object *oie_obj;
494 /** used in ldiskfs iterator, to stored file pointer */
495 struct file oie_file;
496 /** how many entries have been read-cached from storage */
498 /** current entry is being iterated by caller */
500 /** current processing entry */
501 struct osd_it_ea_dirent *oie_dirent;
502 /** buffer to hold entries, size == OSD_IT_EA_BUFSIZE */
504 struct dentry oie_dentry;
508 * Iterator's in-memory data structure for IAM mode.
511 struct osd_object *oi_obj;
512 struct iam_path_descr *oi_ipd;
513 struct iam_iterator oi_it;
516 struct osd_quota_leaf {
517 struct list_head oql_link;
522 * Iterator's in-memory data structure for quota file.
524 struct osd_it_quota {
525 struct osd_object *oiq_obj;
526 /** tree blocks path to where the entry is stored */
527 uint oiq_blk[LUSTRE_DQTREEDEPTH + 1];
528 /** on-disk offset for current key where quota record can be found */
530 /** identifier for current quota record */
532 /** the record index in the leaf/index block */
533 uint oiq_index[LUSTRE_DQTREEDEPTH + 1];
534 /** list of already processed leaf blocks */
535 struct list_head oiq_list;
538 #define MAX_BLOCKS_PER_PAGE (PAGE_SIZE / 512)
541 wait_queue_head_t dr_wait;
542 atomic_t dr_numreqs; /* number of reqs being processed */
547 unsigned int dr_elapsed_valid:1; /* we really did count time */
548 unsigned int dr_rw:1;
549 struct lu_buf dr_pg_buf;
550 struct page **dr_pages;
551 struct niobuf_local **dr_lnbs;
552 struct lu_buf dr_bl_buf;
553 struct lu_buf dr_lnb_buf;
555 ktime_t dr_start_time;
556 ktime_t dr_elapsed; /* how long io took */
557 struct osd_device *dr_dev;
558 unsigned int dr_init_at; /* the line iobuf was initialized */
561 #define OSD_INS_CACHE_SIZE 8
563 struct osd_thread_info {
564 const struct lu_env *oti_env;
566 * used for index operations.
568 struct dentry oti_obj_dentry;
569 struct dentry oti_child_dentry;
571 /** dentry for Iterator context. */
572 struct dentry oti_it_dentry;
575 /* fake struct file for osd_object_sync */
576 struct file oti_file;
578 struct kstatfs oti_ksfs;
581 struct htree_lock *oti_hlock;
583 struct lu_fid oti_fid;
584 struct lu_fid oti_fid2;
585 struct lu_fid oti_fid3;
586 struct osd_inode_id oti_id;
587 struct osd_inode_id oti_id2;
588 struct osd_inode_id oti_id3;
589 struct ost_id oti_ostid;
592 * XXX temporary: for ->i_op calls.
594 struct timespec oti_time;
597 * following ipd and it structures are used for osd_index_iam_lookup()
598 * these are defined separately as we might do index operation
599 * in open iterator session.
602 /** pre-allocated buffer used by oti_it_ea, size OSD_IT_EA_BUFSIZE */
604 unsigned int oti_it_ea_buf_used:1;
606 /* IAM iterator for index operation. */
607 struct iam_iterator oti_idx_it;
609 /** union to guarantee that ->oti_ipd[] has proper alignment. */
612 char oti_it_ipd[DX_IPD_MAX_SIZE];
613 long long oti_alignment_lieutenant;
617 char oti_idx_ipd[DX_IPD_MAX_SIZE];
618 long long oti_alignment_lieutenant_colonel;
621 struct osd_idmap_cache oti_cache;
623 /* dedicated OI cache for insert (which needs inum) */
624 struct osd_idmap_cache *oti_ins_cache;
625 int oti_ins_cache_size;
626 int oti_ins_cache_used;
627 /* inc by osd_trans_create and dec by osd_trans_stop */
628 int oti_ins_cache_depth;
633 /** used in osd_fid_set() to put xattr */
634 struct lu_buf oti_buf;
635 struct lu_buf oti_big_buf;
636 /** used in osd_ea_fid_set() to set fid into common ea */
638 struct lustre_ost_attrs oti_ost_attrs;
639 struct filter_fid_18_23 oti_ff_old;
640 struct filter_fid oti_ff;
643 struct osd_iobuf oti_iobuf;
644 /* used to access objects in /O */
645 struct inode *oti_inode;
646 #define OSD_FID_REC_SZ 32
647 char oti_ldp[OSD_FID_REC_SZ];
648 char oti_ldp2[OSD_FID_REC_SZ];
650 /* used by quota code */
652 #if defined(HAVE_DQUOT_QC_DQBLK)
653 struct qc_dqblk oti_qdq;
654 #elif defined(HAVE_DQUOT_FS_DISK_QUOTA)
655 struct fs_disk_quota oti_fdq;
657 struct if_dqblk oti_dqblk;
659 struct if_dqinfo oti_dqinfo;
661 struct lquota_id_info oti_qi;
662 struct lquota_trans oti_quota_trans;
663 union lquota_rec oti_quota_rec;
665 struct lu_seq_range oti_seq_range;
667 /* Tracking for transaction credits, to allow debugging and optimizing
668 * cases where a large number of credits are being allocated for
669 * single transaction. */
670 unsigned int oti_credits_before;
671 unsigned int oti_declare_ops[OSD_OT_MAX];
672 unsigned int oti_declare_ops_cred[OSD_OT_MAX];
673 unsigned int oti_declare_ops_used[OSD_OT_MAX];
674 struct osd_directory oti_iam;
676 struct page **oti_dio_pages;
677 int oti_dio_pages_used;
680 extern int ldiskfs_pdo;
682 #ifndef HAVE_VFS_SETXATTR
683 #define osd_setxattr(dentry, inode, name, buf, len, flag) \
684 ((inode)->i_op->setxattr(dentry, name, buf, len, flag))
685 #define osd_getxattr(dentry, inode, name, buf, len) \
686 ((inode)->i_op->getxattr(dentry, name, buf, len))
687 #define osd_removexattr(dentry, inode, name) \
688 ((inode)->i_op->removexattr(dentry, name))
689 #else /* HAVE_VFS_SETXATTR */
690 #define osd_setxattr(dentry, inode, name, buf, len, flag) \
691 __vfs_setxattr(dentry, inode, name, buf, len, flag)
692 #define osd_getxattr(dentry, inode, name, buf, len) \
693 __vfs_getxattr(dentry, inode, name, buf, len)
694 #define osd_removexattr(dentry, inode, name) \
695 __vfs_removexattr(dentry, name)
696 #endif /* !HAVE_VFS_SETXATTR */
698 static inline int __osd_xattr_get(struct inode *inode, struct dentry *dentry,
699 const char *name, void *buf, int len)
704 dentry->d_inode = inode;
705 dentry->d_sb = inode->i_sb;
706 return osd_getxattr(dentry, inode, name, buf, len);
709 static inline int __osd_xattr_set(struct osd_thread_info *info,
710 struct inode *inode, const char *name,
711 const void *buf, int buflen, int fl)
713 struct dentry *dentry = &info->oti_child_dentry;
715 ll_vfs_dq_init(inode);
716 dentry->d_inode = inode;
717 dentry->d_sb = inode->i_sb;
718 return osd_setxattr(dentry, inode, name, buf, buflen, fl);
721 #ifdef CONFIG_PROC_FS
723 extern struct lprocfs_vars lprocfs_osd_obd_vars[];
724 int osd_procfs_init(struct osd_device *osd, const char *name);
725 int osd_procfs_fini(struct osd_device *osd);
726 void osd_brw_stats_update(struct osd_device *osd, struct osd_iobuf *iobuf);
727 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 52, 0)
728 int osd_register_proc_index_in_idif(struct osd_device *osd);
732 int osd_statfs(const struct lu_env *env, struct dt_device *dev,
733 struct obd_statfs *sfs);
734 struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
735 struct osd_inode_id *id);
737 osd_iget_fid(struct osd_thread_info *info, struct osd_device *dev,
738 struct osd_inode_id *id, struct lu_fid *fid);
739 int osd_ea_fid_set(struct osd_thread_info *info, struct inode *inode,
740 const struct lu_fid *fid, __u32 compat, __u32 incompat);
741 int osd_get_lma(struct osd_thread_info *info, struct inode *inode,
742 struct dentry *dentry, struct lustre_ost_attrs *loa);
743 void osd_add_oi_cache(struct osd_thread_info *info, struct osd_device *osd,
744 struct osd_inode_id *id, const struct lu_fid *fid);
745 int osd_get_idif(struct osd_thread_info *info, struct inode *inode,
746 struct dentry *dentry, struct lu_fid *fid);
748 int osd_obj_map_init(const struct lu_env *env, struct osd_device *osd);
749 void osd_obj_map_fini(struct osd_device *dev);
750 int osd_obj_map_lookup(struct osd_thread_info *info, struct osd_device *osd,
751 const struct lu_fid *fid, struct osd_inode_id *id);
752 int osd_obj_map_insert(struct osd_thread_info *info, struct osd_device *osd,
753 const struct lu_fid *fid, const struct osd_inode_id *id,
755 int osd_obj_map_delete(struct osd_thread_info *info, struct osd_device *osd,
756 const struct lu_fid *fid, handle_t *th);
757 int osd_obj_map_update(struct osd_thread_info *info, struct osd_device *osd,
758 const struct lu_fid *fid, const struct osd_inode_id *id,
760 int osd_obj_map_recover(struct osd_thread_info *info, struct osd_device *osd,
761 struct inode *src_parent, struct dentry *src_child,
762 const struct lu_fid *fid);
763 int osd_obj_spec_lookup(struct osd_thread_info *info, struct osd_device *osd,
764 const struct lu_fid *fid, struct osd_inode_id *id);
765 int osd_obj_spec_insert(struct osd_thread_info *info, struct osd_device *osd,
766 const struct lu_fid *fid, const struct osd_inode_id *id,
768 int osd_obj_spec_update(struct osd_thread_info *info, struct osd_device *osd,
769 const struct lu_fid *fid, const struct osd_inode_id *id,
772 char *osd_lf_fid2name(const struct lu_fid *fid);
773 int osd_scrub_start(const struct lu_env *env, struct osd_device *dev,
775 void osd_scrub_stop(struct osd_device *dev);
776 int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev);
777 void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev);
778 int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
780 int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid,
781 struct osd_inode_id *id);
782 void osd_scrub_dump(struct seq_file *m, struct osd_device *dev);
784 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
785 u64 seq, struct lu_seq_range *range);
787 int osd_delete_from_remote_parent(const struct lu_env *env,
788 struct osd_device *osd,
789 struct osd_object *obj,
790 struct osd_thandle *oh, bool destroy);
791 int osd_add_to_remote_parent(const struct lu_env *env, struct osd_device *osd,
792 struct osd_object *obj, struct osd_thandle *oh);
793 int osd_lookup_in_remote_parent(struct osd_thread_info *oti,
794 struct osd_device *osd,
795 const struct lu_fid *fid,
796 struct osd_inode_id *id);
798 int osd_ost_seq_exists(struct osd_thread_info *info, struct osd_device *osd,
800 /* osd_quota_fmt.c */
801 int walk_tree_dqentry(const struct lu_env *env, struct osd_object *obj,
802 int type, uint blk, int depth, uint index,
803 struct osd_it_quota *it);
804 int walk_block_dqentry(const struct lu_env *env, struct osd_object *obj,
805 int type, uint blk, uint index,
806 struct osd_it_quota *it);
807 loff_t find_tree_dqentry(const struct lu_env *env,
808 struct osd_object *obj, int type,
809 qid_t dqid, uint blk, int depth,
810 struct osd_it_quota *it);
812 int osd_declare_qid(const struct lu_env *env, struct osd_thandle *oh,
813 struct lquota_id_info *qi, struct osd_object *obj,
814 bool enforce, int *flags);
815 int osd_declare_inode_qid(const struct lu_env *env, qid_t uid, qid_t gid,
816 __u32 projid, long long space, struct osd_thandle *oh,
817 struct osd_object *obj, int *flags,
818 enum osd_qid_declare_flags);
819 const struct dt_rec *osd_quota_pack(struct osd_object *obj,
820 const struct dt_rec *rec,
821 union lquota_rec *quota_rec);
822 void osd_quota_unpack(struct osd_object *obj, const struct dt_rec *rec);
824 #ifndef HAVE_I_UID_READ
825 static inline uid_t i_uid_read(const struct inode *inode)
830 static inline gid_t i_gid_read(const struct inode *inode)
835 static inline void i_uid_write(struct inode *inode, uid_t uid)
840 static inline void i_gid_write(struct inode *inode, gid_t gid)
846 #ifdef HAVE_PROJECT_QUOTA
847 static inline __u32 i_projid_read(struct inode *inode)
849 return (__u32)from_kprojid(&init_user_ns, LDISKFS_I(inode)->i_projid);
852 static inline void i_projid_write(struct inode *inode, __u32 projid)
855 kprojid = make_kprojid(&init_user_ns, (projid_t)projid);
856 LDISKFS_I(inode)->i_projid = kprojid;
859 static inline uid_t i_projid_read(struct inode *inode)
863 static inline void i_projid_write(struct inode *inode, __u32 projid)
869 #ifdef HAVE_LDISKFS_INFO_JINODE
870 # define osd_attach_jinode(inode) ldiskfs_inode_attach_jinode(inode)
871 #else /* HAVE_LDISKFS_INFO_JINODE */
872 # define osd_attach_jinode(inode) 0
873 #endif /* HAVE_LDISKFS_INFO_JINODE */
875 #ifdef LDISKFS_HT_MISC
876 # define osd_journal_start_sb(sb, type, nblock) \
877 ldiskfs_journal_start_sb(sb, type, nblock)
878 static inline struct buffer_head *osd_ldiskfs_append(handle_t *handle,
880 ldiskfs_lblk_t *nblock)
884 rc = osd_attach_jinode(inode);
887 return ldiskfs_append(handle, inode, nblock);
889 # define osd_ldiskfs_find_entry(dir, name, de, inlined, lock) \
890 (__ldiskfs_find_entry(dir, name, de, inlined, lock) ?: \
892 # define osd_journal_start(inode, type, nblocks) \
893 ldiskfs_journal_start(inode, type, nblocks)
894 # define osd_transaction_size(dev) \
895 (osd_journal(dev)->j_max_transaction_buffers / 2)
897 # define LDISKFS_HT_MISC 0
898 # define osd_journal_start_sb(sb, type, nblock) \
899 ldiskfs_journal_start_sb(sb, nblock)
901 static inline struct buffer_head *osd_ldiskfs_append(handle_t *handle,
903 ldiskfs_lblk_t *nblock)
905 struct buffer_head *bh;
908 bh = ldiskfs_append(handle, inode, nblock, &err);
915 # define osd_ldiskfs_find_entry(dir, name, de, inlined, lock) \
916 (__ldiskfs_find_entry(dir, name, de, lock) ?: \
918 # define osd_journal_start(inode, type, nblocks) \
919 ldiskfs_journal_start(inode, nblocks)
920 # define osd_transaction_size(dev) \
921 (osd_journal(dev)->j_max_transaction_buffers)
925 * Invariants, assertions.
929 * XXX: do not enable this, until invariant checking code is made thread safe
930 * in the face of pdirops locking.
932 #define OSD_INVARIANT_CHECKS (0)
934 #if OSD_INVARIANT_CHECKS
935 static inline int osd_invariant(const struct osd_object *obj)
939 ergo(obj->oo_inode != NULL,
940 obj->oo_inode->i_sb == osd_sb(osd_obj2dev(obj)) &&
941 atomic_read(&obj->oo_inode->i_count) > 0) &&
942 ergo(obj->oo_dir != NULL &&
943 obj->oo_dir->od_conationer.ic_object != NULL,
944 obj->oo_dir->od_conationer.ic_object == obj->oo_inode);
947 #define osd_invariant(obj) (1)
950 #define OSD_MAX_CACHE_SIZE OBD_OBJECT_EOF
952 extern const struct dt_index_operations osd_otable_ops;
954 static inline int osd_oi_fid2idx(struct osd_device *dev,
955 const struct lu_fid *fid)
957 return fid->f_seq & (dev->od_oi_count - 1);
960 static inline struct osd_oi *osd_fid2oi(struct osd_device *osd,
961 const struct lu_fid *fid)
963 LASSERTF(!fid_is_idif(fid), DFID"\n", PFID(fid));
964 LASSERTF(!fid_is_last_id(fid), DFID"\n", PFID(fid));
965 LASSERTF(osd->od_oi_table != NULL && osd->od_oi_count >= 1,
966 DFID"\n", PFID(fid));
967 /* It can work even od_oi_count equals to 1 although it's unexpected,
968 * the only reason we set it to 1 is for performance measurement */
969 return osd->od_oi_table[osd_oi_fid2idx(osd, fid)];
972 extern const struct lu_device_operations osd_lu_ops;
974 static inline int lu_device_is_osd(const struct lu_device *d)
976 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &osd_lu_ops);
979 static inline struct osd_device *osd_dt_dev(const struct dt_device *d)
981 LASSERT(lu_device_is_osd(&d->dd_lu_dev));
982 return container_of0(d, struct osd_device, od_dt_dev);
985 static inline struct osd_device *osd_dev(const struct lu_device *d)
987 LASSERT(lu_device_is_osd(d));
988 return osd_dt_dev(container_of0(d, struct dt_device, dd_lu_dev));
991 static inline struct osd_device *osd_obj2dev(const struct osd_object *o)
993 return osd_dev(o->oo_dt.do_lu.lo_dev);
996 static inline struct super_block *osd_sb(const struct osd_device *dev)
998 return dev->od_mnt->mnt_sb;
1001 static inline const char *osd_dev2name(const struct osd_device *dev)
1003 return osd_sb(dev)->s_id;
1006 static inline const char *osd_ino2name(const struct inode *inode)
1008 return inode->i_sb->s_id;
1012 * Put the osd object once done with it.
1014 * \param obj osd object that needs to be put
1016 static inline void osd_object_put(const struct lu_env *env,
1017 struct osd_object *obj)
1019 dt_object_put(env, &obj->oo_dt);
1022 static inline int osd_object_is_root(const struct osd_object *obj)
1024 return osd_sb(osd_obj2dev(obj))->s_root->d_inode == obj->oo_inode;
1027 static inline struct osd_object *osd_obj(const struct lu_object *o)
1029 LASSERT(lu_device_is_osd(o->lo_dev));
1030 return container_of0(o, struct osd_object, oo_dt.do_lu);
1033 static inline struct osd_object *osd_dt_obj(const struct dt_object *d)
1035 return osd_obj(&d->do_lu);
1038 static inline struct lu_device *osd2lu_dev(struct osd_device *osd)
1040 return &osd->od_dt_dev.dd_lu_dev;
1043 static inline journal_t *osd_journal(const struct osd_device *dev)
1045 return LDISKFS_SB(osd_sb(dev))->s_journal;
1048 static inline struct seq_server_site *osd_seq_site(struct osd_device *osd)
1050 return osd->od_dt_dev.dd_lu_dev.ld_site->ld_seq_site;
1053 static inline char *osd_name(struct osd_device *osd)
1055 return osd->od_svname;
1058 static inline bool osd_is_ea_inode(struct inode *inode)
1060 return !!(LDISKFS_I(inode)->i_flags & LDISKFS_EA_INODE_FL);
1063 extern const struct dt_body_operations osd_body_ops;
1064 extern struct lu_context_key osd_key;
1066 static inline struct osd_thread_info *osd_oti_get(const struct lu_env *env)
1068 return lu_context_key_get(&env->le_ctx, &osd_key);
1071 extern const struct dt_body_operations osd_body_ops_new;
1077 struct iam_path_descr *osd_it_ipd_get(const struct lu_env *env,
1078 const struct iam_container *bag)
1080 return bag->ic_descr->id_ops->id_ipd_alloc(bag,
1081 osd_oti_get(env)->oti_it_ipd);
1085 struct iam_path_descr *osd_idx_ipd_get(const struct lu_env *env,
1086 const struct iam_container *bag)
1088 return bag->ic_descr->id_ops->id_ipd_alloc(bag,
1089 osd_oti_get(env)->oti_idx_ipd);
1092 static inline void osd_ipd_put(const struct lu_env *env,
1093 const struct iam_container *bag,
1094 struct iam_path_descr *ipd)
1096 bag->ic_descr->id_ops->id_ipd_free(ipd);
1099 int osd_calc_bkmap_credits(struct super_block *sb, struct inode *inode,
1100 const loff_t size, const loff_t pos,
1103 int osd_ldiskfs_read(struct inode *inode, void *buf, int size, loff_t *offs);
1104 int osd_ldiskfs_write_record(struct inode *inode, void *buf, int bufsize,
1105 int write_NUL, loff_t *offs, handle_t *handle);
1108 struct dentry *osd_child_dentry_by_inode(const struct lu_env *env,
1109 struct inode *inode,
1110 const char *name, const int namelen)
1112 struct osd_thread_info *info = osd_oti_get(env);
1113 struct dentry *child_dentry = &info->oti_child_dentry;
1114 struct dentry *obj_dentry = &info->oti_obj_dentry;
1116 obj_dentry->d_inode = inode;
1117 obj_dentry->d_sb = inode->i_sb;
1118 obj_dentry->d_name.hash = 0;
1120 child_dentry->d_name.hash = 0;
1121 child_dentry->d_parent = obj_dentry;
1122 child_dentry->d_name.name = name;
1123 child_dentry->d_name.len = namelen;
1124 return child_dentry;
1127 extern int osd_trans_declare_op2rb[];
1128 extern int ldiskfs_track_declares_assert;
1129 void osd_trans_dump_creds(const struct lu_env *env, struct thandle *th);
1131 static inline void osd_trans_declare_op(const struct lu_env *env,
1132 struct osd_thandle *oh,
1133 enum osd_op_type op, int credits)
1135 struct osd_thread_info *oti = osd_oti_get(env);
1137 LASSERT(oh->ot_handle == NULL);
1138 if (unlikely(op >= OSD_OT_MAX)) {
1139 if (unlikely(ldiskfs_track_declares_assert)) {
1140 LASSERT(op < OSD_OT_MAX);
1142 CWARN("%s: Invalid operation index %d\n",
1143 osd_name(osd_dt_dev(oh->ot_super.th_dev)), op);
1144 libcfs_debug_dumpstack(NULL);
1147 oti->oti_declare_ops[op]++;
1148 oti->oti_declare_ops_cred[op] += credits;
1150 oh->ot_credits += credits;
1153 static inline void osd_trans_exec_op(const struct lu_env *env,
1155 enum osd_op_type op)
1157 struct osd_thread_info *oti = osd_oti_get(env);
1158 struct osd_thandle *oh = container_of(th, struct osd_thandle,
1160 unsigned int rb, left;
1162 LASSERT(oh->ot_handle != NULL);
1163 if (unlikely(op >= OSD_OT_MAX)) {
1164 if (unlikely(ldiskfs_track_declares_assert))
1165 LASSERT(op < OSD_OT_MAX);
1167 CWARN("%s: opcode %u: invalid value >= %u\n",
1168 osd_name(osd_dt_dev(oh->ot_super.th_dev)),
1170 libcfs_debug_dumpstack(NULL);
1175 /* find rollback (or reverse) operation for the given one
1176 * such an operation doesn't require additional credits
1177 * as the same set of blocks are modified */
1178 rb = osd_trans_declare_op2rb[op];
1180 /* check whether credits for this operation were reserved at all */
1181 if (unlikely(oti->oti_declare_ops_cred[op] == 0 &&
1182 oti->oti_declare_ops_cred[rb] == 0)) {
1183 /* the API is not perfect yet: CREATE does REF_ADD internally
1184 * while DESTROY does not. To rollback CREATE the callers
1185 * needs to call REF_DEL+DESTROY which is hard to detect using
1186 * a simple table of rollback operations */
1187 if (op == OSD_OT_REF_DEL &&
1188 oti->oti_declare_ops_cred[OSD_OT_CREATE] > 0)
1190 if (op == OSD_OT_REF_ADD &&
1191 oti->oti_declare_ops_cred[OSD_OT_DESTROY] > 0)
1193 CWARN("%s: opcode %u: credits = 0, rollback = %u\n",
1194 osd_name(osd_dt_dev(oh->ot_super.th_dev)), op, rb);
1195 osd_trans_dump_creds(env, th);
1196 LASSERT(!ldiskfs_track_declares_assert);
1200 /* remember how many credits we have unused before the operation */
1201 oti->oti_credits_before = oh->ot_handle->h_buffer_credits;
1202 left = oti->oti_declare_ops_cred[op] - oti->oti_declare_ops_used[op];
1203 if (unlikely(oti->oti_credits_before < left)) {
1204 CWARN("%s: opcode %u: before %u < left %u, rollback = %u\n",
1205 osd_name(osd_dt_dev(oh->ot_super.th_dev)), op,
1206 oti->oti_credits_before, left, rb);
1207 osd_trans_dump_creds(env, th);
1208 /* on a very small fs (testing?) it's possible that
1209 * the transaction can't fit 1/4 of journal, so we
1210 * just request less credits (see osd_trans_start()).
1211 * ignore the same case here */
1212 rb = osd_transaction_size(osd_dt_dev(th->th_dev));
1213 if (unlikely(oh->ot_credits < rb))
1214 LASSERT(!ldiskfs_track_declares_assert);
1218 static inline void osd_trans_exec_check(const struct lu_env *env,
1220 enum osd_op_type op)
1222 struct osd_thread_info *oti = osd_oti_get(env);
1223 struct osd_thandle *oh = container_of(th, struct osd_thandle,
1225 int used, over, quota;
1227 /* how many credits have been used by the operation */
1228 used = oti->oti_credits_before - oh->ot_handle->h_buffer_credits;
1230 if (unlikely(used < 0)) {
1231 /* if some block was allocated and released in the same
1232 * transaction, then it won't be a part of the transaction
1233 * and delta can be negative */
1238 /* rollback operations (e.g. when we destroy just created
1239 * object) should not consume any credits. there is no point
1240 * to confuse the checks below */
1244 oti->oti_declare_ops_used[op] += used;
1245 if (oti->oti_declare_ops_used[op] <= oti->oti_declare_ops_cred[op])
1248 /* we account quota for a whole transaction and any operation can
1249 * consume corresponding credits */
1250 over = oti->oti_declare_ops_used[op] -
1251 oti->oti_declare_ops_cred[op];
1252 quota = oti->oti_declare_ops_cred[OSD_OT_QUOTA] -
1253 oti->oti_declare_ops_used[OSD_OT_QUOTA];
1254 if (over <= quota) {
1255 /* probably that credits were consumed by
1256 * quota indirectly (in the depths of ldiskfs) */
1257 oti->oti_declare_ops_used[OSD_OT_QUOTA] += over;
1258 oti->oti_declare_ops_used[op] -= over;
1260 CWARN("%s: opcode %d: used %u, used now %u, reserved %u\n",
1261 osd_name(osd_dt_dev(oh->ot_super.th_dev)), op,
1262 oti->oti_declare_ops_used[op], used,
1263 oti->oti_declare_ops_cred[op]);
1264 osd_trans_dump_creds(env, th);
1265 if (unlikely(ldiskfs_track_declares_assert))
1271 * Helper function to pack the fid, ldiskfs stores fid in packed format.
1274 void osd_fid_pack(struct osd_fid_pack *pack, const struct dt_rec *fid,
1275 struct lu_fid *befider)
1277 fid_cpu_to_be(befider, (struct lu_fid *)fid);
1278 memcpy(pack->fp_area, befider, sizeof(*befider));
1279 pack->fp_len = sizeof(*befider) + 1;
1283 int osd_fid_unpack(struct lu_fid *fid, const struct osd_fid_pack *pack)
1288 switch (pack->fp_len) {
1289 case sizeof *fid + 1:
1290 memcpy(fid, pack->fp_area, sizeof *fid);
1291 fid_be_to_cpu(fid, fid);
1294 CERROR("Unexpected packed fid size: %d\n", pack->fp_len);
1301 * Quota/Accounting handling
1303 extern const struct dt_index_operations osd_acct_index_ops;
1304 int osd_acct_obj_lookup(struct osd_thread_info *info, struct osd_device *osd,
1305 const struct lu_fid *fid, struct osd_inode_id *id);
1307 /* copy from fs/ext4/dir.c */
1308 static inline int is_32bit_api(void)
1310 #ifdef CONFIG_COMPAT
1311 return in_compat_syscall();
1313 return (BITS_PER_LONG == 32);
1317 static inline loff_t ldiskfs_get_htree_eof(struct file *filp)
1319 if ((filp->f_mode & FMODE_32BITHASH) ||
1320 (!(filp->f_mode & FMODE_64BITHASH) && is_32bit_api()))
1321 return LDISKFS_HTREE_EOF_32BIT;
1323 return LDISKFS_HTREE_EOF_64BIT;
1326 static inline int fid_is_internal(const struct lu_fid *fid)
1328 return (!fid_is_namespace_visible(fid) && !fid_is_idif(fid));
1331 static inline bool is_remote_parent_ino(struct osd_device *o, unsigned long ino)
1336 LASSERT(o->od_mdt_map != NULL);
1338 return ino == o->od_mdt_map->omm_remote_parent->d_inode->i_ino;
1342 * ext4_bread/ldiskfs_bread has either 5 or 4 parameters. The error
1343 * return code has been removed and integrated into the pointer in the
1346 static inline struct buffer_head *__ldiskfs_bread(handle_t *handle,
1347 struct inode *inode,
1348 ldiskfs_lblk_t block,
1352 struct buffer_head *bh;
1355 rc = osd_attach_jinode(inode);
1359 #ifdef HAVE_EXT4_BREAD_4ARGS
1360 bh = ldiskfs_bread(handle, inode, block, create);
1363 bh = ldiskfs_bread(handle, inode, block, create, &rc);
1364 if (bh == NULL && rc != 0)
1370 #ifndef HAVE_BIO_INTEGRITY_ENABLED
1371 bool bio_integrity_enabled(struct bio *bio);
1375 # define bio_get_dev(bio) ((bio)->bi_bdev)
1376 # define bio_get_disk(bio) (bio_get_dev(bio)->bd_disk)
1377 # define bio_get_queue(bio) bdev_get_queue(bio_get_dev(bio))
1378 # define bio_set_dev(bio, bdev) (bio_get_dev(bio) = (bdev))
1380 # define bio_get_disk(bio) ((bio)->bi_disk)
1381 # define bio_get_queue(bio) (bio_get_disk(bio)->queue)
1384 void ldiskfs_inc_count(handle_t *handle, struct inode *inode);
1385 void ldiskfs_dec_count(handle_t *handle, struct inode *inode);
1387 void osd_fini_iobuf(struct osd_device *d, struct osd_iobuf *iobuf);
1390 osd_index_register(struct osd_device *osd, const struct lu_fid *fid,
1391 __u32 keysize, __u32 recsize)
1393 return lustre_index_register(&osd->od_dt_dev, osd_name(osd),
1394 &osd->od_index_backup_list, &osd->od_lock,
1395 &osd->od_index_backup_stop,
1396 fid, keysize, recsize);
1400 osd_index_backup(const struct lu_env *env, struct osd_device *osd, bool backup)
1402 struct osd_thread_info *info = osd_oti_get(env);
1403 struct lu_fid *fid = &info->oti_fid3;
1404 struct osd_inode_id *id = &info->oti_id3;
1406 lu_local_obj_fid(fid, INDEX_BACKUP_OID);
1407 osd_id_gen(id, osd->od_index_backup_inode->i_ino,
1408 osd->od_index_backup_inode->i_generation);
1409 osd_add_oi_cache(info, osd, id, fid);
1411 lustre_index_backup(env, &osd->od_dt_dev, osd_name(osd),
1412 &osd->od_index_backup_list, &osd->od_lock,
1413 &osd->od_index_backup_stop, backup);
1416 #ifdef LDISKFS_HAS_INCOMPAT_FEATURE
1418 # ifdef LDISKFS_FEATURE_INCOMPAT_EXTENTS
1419 # define ldiskfs_has_feature_extents(sb) \
1420 LDISKFS_HAS_INCOMPAT_FEATURE(sb, LDISKFS_FEATURE_INCOMPAT_EXTENTS)
1422 # ifdef LDISKFS_FEATURE_INCOMPAT_EA_INODE
1423 # define ldiskfs_has_feature_ea_inode(sb) \
1424 LDISKFS_HAS_INCOMPAT_FEATURE(sb, LDISKFS_FEATURE_INCOMPAT_EA_INODE)
1426 # ifdef LDISKFS_FEATURE_INCOMPAT_DIRDATA
1427 # define ldiskfs_has_feature_dirdata(sb) \
1428 LDISKFS_HAS_INCOMPAT_FEATURE(sb, LDISKFS_FEATURE_INCOMPAT_DIRDATA)
1430 # ifdef LDISKFS_FEATURE_COMPAT_HAS_JOURNAL
1431 # define ldiskfs_has_feature_journal(sb) \
1432 LDISKFS_HAS_COMPAT_FEATURE(sb, LDISKFS_FEATURE_COMPAT_HAS_JOURNAL)
1434 # ifdef LDISKFS_FEATURE_RO_COMPAT_QUOTA
1435 # define ldiskfs_has_feature_quota(sb) \
1436 LDISKFS_HAS_RO_COMPAT_FEATURE(sb, LDISKFS_FEATURE_RO_COMPAT_QUOTA)
1438 # ifdef LDISKFS_FEATURE_RO_COMPAT_PROJECT
1439 # define ldiskfs_has_feature_project(sb) \
1440 LDISKFS_HAS_RO_COMPAT_FEATURE(sb, LDISKFS_FEATURE_RO_COMPAT_PROJECT)
1445 int osd_trunc_lock(struct osd_object *obj, struct osd_thandle *oh,
1447 void osd_trunc_unlock_all(struct list_head *list);
1448 void osd_process_truncates(struct list_head *list);
1449 void osd_execute_truncate(struct osd_object *obj);
1451 #ifdef HAVE_BIO_ENDIO_USES_ONE_ARG
1452 #define osd_dio_complete_routine(bio, error) dio_complete_routine(bio)
1454 #define osd_dio_complete_routine(bio, error) dio_complete_routine(bio, error)
1457 #ifndef HAVE___BI_CNT
1458 #define __bi_cnt bi_cnt
1462 #define bi_opf bi_rw
1465 #ifndef HAVE_CLEAN_BDEV_ALIASES
1466 #define clean_bdev_aliases(bdev, block, len) \
1467 unmap_underlying_metadata((bdev), (block))
1470 #ifndef HAVE_BI_STATUS
1471 #define bi_status bi_error
1475 * Maximum size of xattr attributes for FEATURE_INCOMPAT_EA_INODE 1Mb
1476 * This limit is arbitrary, but is reasonable for the xattr API.
1478 #define LDISKFS_XATTR_MAX_LARGE_EA_SIZE (1024 * 1024)
1480 struct osd_bio_private {
1481 struct osd_iobuf *obp_iobuf;
1482 /* Start page index in the obp_iobuf for the bio */
1483 int obp_start_page_idx;
1486 #ifdef HAVE_BIO_INTEGRITY_PREP_FN
1487 int osd_get_integrity_profile(struct osd_device *osd,
1488 integrity_gen_fn **generate_fn,
1489 integrity_vrfy_fn **verify_fn);
1491 #define integrity_gen_fn void
1492 #define integrity_vrfy_fn int
1493 static inline int osd_get_integrity_profile(struct osd_device *osd,
1494 integrity_gen_fn **generate_fn,
1495 integrity_vrfy_fn **verify_fn)
1500 static inline bool bio_integrity_prep_fn(struct bio *bio,
1501 integrity_gen_fn *generate_fn,
1502 integrity_vrfy_fn *verify_fn)
1504 return bio_integrity_prep(bio);
1508 #endif /* _OSD_INTERNAL_H */