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,
272 __s64 od_auto_scrub_interval;
273 __u32 od_dirent_journal;
275 struct proc_dir_entry *od_proc_entry;
276 struct lprocfs_stats *od_stats;
278 spinlock_t od_osfs_lock;
281 struct lu_site od_site;
283 struct osd_obj_map *od_ost_map;
284 struct osd_mdobj_map *od_mdt_map;
286 unsigned long long od_readcache_max_filesize;
288 int od_writethrough_cache;
290 struct brw_stats od_brw_stats;
291 atomic_t od_r_in_flight;
292 atomic_t od_w_in_flight;
294 struct mutex od_otable_mutex;
295 struct osd_otable_it *od_otable_it;
296 struct osd_scrub od_scrub;
297 struct list_head od_ios_list;
299 /* service name associated with the osd device */
300 char od_svname[MAX_OBD_NAME];
301 char od_mntdev[MAX_OBD_NAME];
303 /* quota slave instance for inode */
304 struct qsd_instance *od_quota_slave_md;
306 /* quota slave instance for block */
307 struct qsd_instance *od_quota_slave_dt;
309 /* osd seq instance */
310 struct lu_client_seq *od_cl_seq;
311 /* If the ratio of "the total OI mappings count" vs
312 * "the bad OI mappings count" is lower than the
313 * osd_device::od_full_scrub_ratio, then trigger
314 * OI scrub to scan the whole the device. */
315 __u64 od_full_scrub_ratio;
316 /* If the speed of found bad OI mappings (per minute)
317 * exceeds the osd_device::od_full_scrub_threshold_rate,
318 * then trigger OI scrub to scan the whole device. */
319 __u64 od_full_scrub_threshold_rate;
321 /* a list of orphaned agent inodes, protected with od_osfs_lock */
322 struct list_head od_orphan_list;
323 struct list_head od_index_backup_list;
324 struct list_head od_index_restore_list;
326 struct inode *od_index_backup_inode;
327 enum lustre_index_backup_policy od_index_backup_policy;
328 int od_index_backup_stop;
329 /* T10PI type, zero if not supported */
330 enum osd_t10_type od_t10_type;
333 static inline struct qsd_instance *osd_def_qsd(struct osd_device *osd)
336 return osd->od_quota_slave_dt;
338 return osd->od_quota_slave_md;
341 enum osd_full_scrub_ratio {
342 /* Trigger OI scrub to scan the whole device directly. */
345 /* Because the bad OI mappings count cannot be larger than
346 * the total OI mappints count, then setting OFSR_NEVER means
347 * that the whole device scanning cannot be triggered by auto
348 * detected bad OI mappings during the RPC services. */
350 OFSR_DEFAULT = 10000,
353 #define FULL_SCRUB_THRESHOLD_RATE_DEFAULT 60
355 /* There are at most 15 uid/gid/projids are affected in a transaction, and
356 * that's rename case:
357 * - 3 for source parent uid & gid & projid;
358 * - 3 for source child uid & gid & projid ('..' entry update when
359 * child is directory);
360 * - 3 for target parent uid & gid & projid;
361 * - 3 for target child uid & gid & projid(if the target child exists);
362 * - 3 for root uid & gid(last_rcvd, llog, etc);
365 #define OSD_MAX_UGID_CNT 15
370 OSD_OT_XATTR_SET = 2,
382 struct osd_access_lock {
383 struct list_head tl_list;
384 struct osd_object *tl_obj;
390 struct thandle ot_super;
392 struct ldiskfs_journal_cb_entry ot_jcb;
393 struct list_head ot_commit_dcb_list;
394 struct list_head ot_stop_dcb_list;
395 /* Link to the device, for debugging. */
396 struct lu_ref_link ot_dev_link;
397 unsigned int ot_credits;
399 /* quota IDs related to the transaction */
400 unsigned short ot_id_cnt;
401 __u8 ot_id_res[OSD_MAX_UGID_CNT];
402 __u8 ot_id_types[OSD_MAX_UGID_CNT];
403 uid_t ot_id_array[OSD_MAX_UGID_CNT];
404 struct lquota_trans *ot_quota_trans;
406 unsigned int ot_remove_agents:1;
407 #if OSD_THANDLE_STATS
408 /** time when this handle was allocated */
411 /** time when this thanle was started */
414 struct list_head ot_trunc_locks;
418 * Basic transaction credit op
439 #ifdef CONFIG_PROC_FS
441 LPROC_OSD_READ_BYTES = 0,
442 LPROC_OSD_WRITE_BYTES = 1,
443 LPROC_OSD_GET_PAGE = 2,
444 LPROC_OSD_NO_PAGE = 3,
445 LPROC_OSD_CACHE_ACCESS = 4,
446 LPROC_OSD_CACHE_HIT = 5,
447 LPROC_OSD_CACHE_MISS = 6,
449 #if OSD_THANDLE_STATS
450 LPROC_OSD_THANDLE_STARTING,
451 LPROC_OSD_THANDLE_OPEN,
452 LPROC_OSD_THANDLE_CLOSING,
459 * Storage representation for fids.
461 * Variable size, first byte contains the length of the whole record.
463 struct osd_fid_pack {
464 unsigned char fp_len;
465 char fp_area[sizeof(struct lu_fid)];
468 struct osd_it_ea_dirent {
469 struct lu_fid oied_fid;
472 unsigned short oied_namelen;
473 unsigned int oied_type;
475 } __attribute__((packed));
478 * as osd_it_ea_dirent (in memory dirent struct for osd) is greater
479 * than lu_dirent struct. osd readdir reads less number of dirent than
480 * required for mdd dir page. so buffer size need to be increased so that
481 * there would be one ext3 readdir for every mdd readdir page.
484 #define OSD_IT_EA_BUFSIZE (PAGE_SIZE + PAGE_SIZE/4)
487 * This is iterator's in-memory data structure in interoperability
488 * mode (i.e. iterator over ldiskfs style directory)
491 struct osd_object *oie_obj;
492 /** used in ldiskfs iterator, to stored file pointer */
493 struct file oie_file;
494 /** how many entries have been read-cached from storage */
496 /** current entry is being iterated by caller */
498 /** current processing entry */
499 struct osd_it_ea_dirent *oie_dirent;
500 /** buffer to hold entries, size == OSD_IT_EA_BUFSIZE */
502 struct dentry oie_dentry;
506 * Iterator's in-memory data structure for IAM mode.
509 struct osd_object *oi_obj;
510 struct iam_path_descr *oi_ipd;
511 struct iam_iterator oi_it;
514 struct osd_quota_leaf {
515 struct list_head oql_link;
520 * Iterator's in-memory data structure for quota file.
522 struct osd_it_quota {
523 struct osd_object *oiq_obj;
524 /** tree blocks path to where the entry is stored */
525 uint oiq_blk[LUSTRE_DQTREEDEPTH + 1];
526 /** on-disk offset for current key where quota record can be found */
528 /** identifier for current quota record */
530 /** the record index in the leaf/index block */
531 uint oiq_index[LUSTRE_DQTREEDEPTH + 1];
532 /** list of already processed leaf blocks */
533 struct list_head oiq_list;
536 #define MAX_BLOCKS_PER_PAGE (PAGE_SIZE / 512)
539 wait_queue_head_t dr_wait;
540 atomic_t dr_numreqs; /* number of reqs being processed */
545 unsigned int dr_elapsed_valid:1; /* we really did count time */
546 unsigned int dr_rw:1;
547 struct lu_buf dr_pg_buf;
548 struct page **dr_pages;
549 struct niobuf_local **dr_lnbs;
550 struct lu_buf dr_bl_buf;
551 struct lu_buf dr_lnb_buf;
553 ktime_t dr_start_time;
554 ktime_t dr_elapsed; /* how long io took */
555 struct osd_device *dr_dev;
556 unsigned int dr_init_at; /* the line iobuf was initialized */
559 #define OSD_INS_CACHE_SIZE 8
561 struct osd_thread_info {
562 const struct lu_env *oti_env;
564 * used for index operations.
566 struct dentry oti_obj_dentry;
567 struct dentry oti_child_dentry;
569 /** dentry for Iterator context. */
570 struct dentry oti_it_dentry;
573 /* fake struct file for osd_object_sync */
574 struct file oti_file;
576 struct kstatfs oti_ksfs;
579 struct htree_lock *oti_hlock;
581 struct lu_fid oti_fid;
582 struct lu_fid oti_fid2;
583 struct lu_fid oti_fid3;
584 struct osd_inode_id oti_id;
585 struct osd_inode_id oti_id2;
586 struct osd_inode_id oti_id3;
587 struct ost_id oti_ostid;
590 * XXX temporary: for ->i_op calls.
592 struct timespec oti_time;
595 * following ipd and it structures are used for osd_index_iam_lookup()
596 * these are defined separately as we might do index operation
597 * in open iterator session.
600 /** pre-allocated buffer used by oti_it_ea, size OSD_IT_EA_BUFSIZE */
602 unsigned int oti_it_ea_buf_used:1;
604 /* IAM iterator for index operation. */
605 struct iam_iterator oti_idx_it;
607 /** union to guarantee that ->oti_ipd[] has proper alignment. */
610 char oti_it_ipd[DX_IPD_MAX_SIZE];
611 long long oti_alignment_lieutenant;
615 char oti_idx_ipd[DX_IPD_MAX_SIZE];
616 long long oti_alignment_lieutenant_colonel;
619 struct osd_idmap_cache oti_cache;
621 /* dedicated OI cache for insert (which needs inum) */
622 struct osd_idmap_cache *oti_ins_cache;
623 int oti_ins_cache_size;
624 int oti_ins_cache_used;
625 /* inc by osd_trans_create and dec by osd_trans_stop */
626 int oti_ins_cache_depth;
631 /** used in osd_fid_set() to put xattr */
632 struct lu_buf oti_buf;
633 struct lu_buf oti_big_buf;
634 /** used in osd_ea_fid_set() to set fid into common ea */
636 struct lustre_ost_attrs oti_ost_attrs;
637 struct filter_fid_18_23 oti_ff_old;
638 struct filter_fid oti_ff;
641 struct osd_iobuf oti_iobuf;
642 /* used to access objects in /O */
643 struct inode *oti_inode;
644 #define OSD_FID_REC_SZ 32
645 char oti_ldp[OSD_FID_REC_SZ];
646 char oti_ldp2[OSD_FID_REC_SZ];
648 /* used by quota code */
650 #if defined(HAVE_DQUOT_QC_DQBLK)
651 struct qc_dqblk oti_qdq;
652 #elif defined(HAVE_DQUOT_FS_DISK_QUOTA)
653 struct fs_disk_quota oti_fdq;
655 struct if_dqblk oti_dqblk;
657 struct if_dqinfo oti_dqinfo;
659 struct lquota_id_info oti_qi;
660 struct lquota_trans oti_quota_trans;
661 union lquota_rec oti_quota_rec;
663 struct lu_seq_range oti_seq_range;
665 /* Tracking for transaction credits, to allow debugging and optimizing
666 * cases where a large number of credits are being allocated for
667 * single transaction. */
668 unsigned int oti_credits_before;
669 unsigned int oti_declare_ops[OSD_OT_MAX];
670 unsigned int oti_declare_ops_cred[OSD_OT_MAX];
671 unsigned int oti_declare_ops_used[OSD_OT_MAX];
672 struct osd_directory oti_iam;
674 struct page **oti_dio_pages;
675 int oti_dio_pages_used;
678 extern int ldiskfs_pdo;
680 #ifndef HAVE_VFS_SETXATTR
681 #define osd_setxattr(dentry, inode, name, buf, len, flag) \
682 ((inode)->i_op->setxattr(dentry, name, buf, len, flag))
683 #define osd_getxattr(dentry, inode, name, buf, len) \
684 ((inode)->i_op->getxattr(dentry, name, buf, len))
685 #define osd_removexattr(dentry, inode, name) \
686 ((inode)->i_op->removexattr(dentry, name))
687 #else /* HAVE_VFS_SETXATTR */
688 #define osd_setxattr(dentry, inode, name, buf, len, flag) \
689 __vfs_setxattr(dentry, inode, name, buf, len, flag)
690 #define osd_getxattr(dentry, inode, name, buf, len) \
691 __vfs_getxattr(dentry, inode, name, buf, len)
692 #define osd_removexattr(dentry, inode, name) \
693 __vfs_removexattr(dentry, name)
694 #endif /* !HAVE_VFS_SETXATTR */
696 static inline int __osd_xattr_get(struct inode *inode, struct dentry *dentry,
697 const char *name, void *buf, int len)
702 dentry->d_inode = inode;
703 dentry->d_sb = inode->i_sb;
704 return osd_getxattr(dentry, inode, name, buf, len);
707 static inline int __osd_xattr_set(struct osd_thread_info *info,
708 struct inode *inode, const char *name,
709 const void *buf, int buflen, int fl)
711 struct dentry *dentry = &info->oti_child_dentry;
713 ll_vfs_dq_init(inode);
714 dentry->d_inode = inode;
715 dentry->d_sb = inode->i_sb;
716 return osd_setxattr(dentry, inode, name, buf, buflen, fl);
719 #ifdef CONFIG_PROC_FS
721 extern struct lprocfs_vars lprocfs_osd_obd_vars[];
722 extern struct lprocfs_vars lprocfs_osd_module_vars[];
723 int osd_procfs_init(struct osd_device *osd, const char *name);
724 int osd_procfs_fini(struct osd_device *osd);
725 void osd_brw_stats_update(struct osd_device *osd, struct osd_iobuf *iobuf);
726 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 52, 0)
727 int osd_register_proc_index_in_idif(struct osd_device *osd);
731 int osd_statfs(const struct lu_env *env, struct dt_device *dev,
732 struct obd_statfs *sfs);
733 struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
734 struct osd_inode_id *id);
736 osd_iget_fid(struct osd_thread_info *info, struct osd_device *dev,
737 struct osd_inode_id *id, struct lu_fid *fid);
738 int osd_ea_fid_set(struct osd_thread_info *info, struct inode *inode,
739 const struct lu_fid *fid, __u32 compat, __u32 incompat);
740 int osd_get_lma(struct osd_thread_info *info, struct inode *inode,
741 struct dentry *dentry, struct lustre_ost_attrs *loa);
742 void osd_add_oi_cache(struct osd_thread_info *info, struct osd_device *osd,
743 struct osd_inode_id *id, const struct lu_fid *fid);
744 int osd_get_idif(struct osd_thread_info *info, struct inode *inode,
745 struct dentry *dentry, struct lu_fid *fid);
747 int osd_obj_map_init(const struct lu_env *env, struct osd_device *osd);
748 void osd_obj_map_fini(struct osd_device *dev);
749 int osd_obj_map_lookup(struct osd_thread_info *info, struct osd_device *osd,
750 const struct lu_fid *fid, struct osd_inode_id *id);
751 int osd_obj_map_insert(struct osd_thread_info *info, struct osd_device *osd,
752 const struct lu_fid *fid, const struct osd_inode_id *id,
754 int osd_obj_map_delete(struct osd_thread_info *info, struct osd_device *osd,
755 const struct lu_fid *fid, handle_t *th);
756 int osd_obj_map_update(struct osd_thread_info *info, struct osd_device *osd,
757 const struct lu_fid *fid, const struct osd_inode_id *id,
759 int osd_obj_map_recover(struct osd_thread_info *info, struct osd_device *osd,
760 struct inode *src_parent, struct dentry *src_child,
761 const struct lu_fid *fid);
762 int osd_obj_spec_lookup(struct osd_thread_info *info, struct osd_device *osd,
763 const struct lu_fid *fid, struct osd_inode_id *id);
764 int osd_obj_spec_insert(struct osd_thread_info *info, struct osd_device *osd,
765 const struct lu_fid *fid, const struct osd_inode_id *id,
767 int osd_obj_spec_update(struct osd_thread_info *info, struct osd_device *osd,
768 const struct lu_fid *fid, const struct osd_inode_id *id,
771 char *osd_lf_fid2name(const struct lu_fid *fid);
772 int osd_scrub_start(const struct lu_env *env, struct osd_device *dev,
774 void osd_scrub_stop(struct osd_device *dev);
775 int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev);
776 void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev);
777 int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
779 int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid,
780 struct osd_inode_id *id);
781 void osd_scrub_dump(struct seq_file *m, struct osd_device *dev);
783 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
784 u64 seq, struct lu_seq_range *range);
786 int osd_delete_from_remote_parent(const struct lu_env *env,
787 struct osd_device *osd,
788 struct osd_object *obj,
789 struct osd_thandle *oh, bool destroy);
790 int osd_add_to_remote_parent(const struct lu_env *env, struct osd_device *osd,
791 struct osd_object *obj, struct osd_thandle *oh);
792 int osd_lookup_in_remote_parent(struct osd_thread_info *oti,
793 struct osd_device *osd,
794 const struct lu_fid *fid,
795 struct osd_inode_id *id);
797 int osd_ost_seq_exists(struct osd_thread_info *info, struct osd_device *osd,
799 /* osd_quota_fmt.c */
800 int walk_tree_dqentry(const struct lu_env *env, struct osd_object *obj,
801 int type, uint blk, int depth, uint index,
802 struct osd_it_quota *it);
803 int walk_block_dqentry(const struct lu_env *env, struct osd_object *obj,
804 int type, uint blk, uint index,
805 struct osd_it_quota *it);
806 loff_t find_tree_dqentry(const struct lu_env *env,
807 struct osd_object *obj, int type,
808 qid_t dqid, uint blk, int depth,
809 struct osd_it_quota *it);
811 int osd_declare_qid(const struct lu_env *env, struct osd_thandle *oh,
812 struct lquota_id_info *qi, struct osd_object *obj,
813 bool enforce, int *flags);
814 int osd_declare_inode_qid(const struct lu_env *env, qid_t uid, qid_t gid,
815 __u32 projid, long long space, struct osd_thandle *oh,
816 struct osd_object *obj, int *flags,
817 enum osd_qid_declare_flags);
818 const struct dt_rec *osd_quota_pack(struct osd_object *obj,
819 const struct dt_rec *rec,
820 union lquota_rec *quota_rec);
821 void osd_quota_unpack(struct osd_object *obj, const struct dt_rec *rec);
823 #ifndef HAVE_I_UID_READ
824 static inline uid_t i_uid_read(const struct inode *inode)
829 static inline gid_t i_gid_read(const struct inode *inode)
834 static inline void i_uid_write(struct inode *inode, uid_t uid)
839 static inline void i_gid_write(struct inode *inode, gid_t gid)
845 #ifdef HAVE_PROJECT_QUOTA
846 static inline __u32 i_projid_read(struct inode *inode)
848 return (__u32)from_kprojid(&init_user_ns, LDISKFS_I(inode)->i_projid);
851 static inline void i_projid_write(struct inode *inode, __u32 projid)
854 kprojid = make_kprojid(&init_user_ns, (projid_t)projid);
855 LDISKFS_I(inode)->i_projid = kprojid;
858 static inline uid_t i_projid_read(struct inode *inode)
862 static inline void i_projid_write(struct inode *inode, __u32 projid)
868 #ifdef HAVE_LDISKFS_INFO_JINODE
869 # define osd_attach_jinode(inode) ldiskfs_inode_attach_jinode(inode)
870 #else /* HAVE_LDISKFS_INFO_JINODE */
871 # define osd_attach_jinode(inode) 0
872 #endif /* HAVE_LDISKFS_INFO_JINODE */
874 #ifdef LDISKFS_HT_MISC
875 # define osd_journal_start_sb(sb, type, nblock) \
876 ldiskfs_journal_start_sb(sb, type, nblock)
877 static inline struct buffer_head *osd_ldiskfs_append(handle_t *handle,
879 ldiskfs_lblk_t *nblock)
883 rc = osd_attach_jinode(inode);
886 return ldiskfs_append(handle, inode, nblock);
888 # define osd_ldiskfs_find_entry(dir, name, de, inlined, lock) \
889 (__ldiskfs_find_entry(dir, name, de, inlined, lock) ?: \
891 # define osd_journal_start(inode, type, nblocks) \
892 ldiskfs_journal_start(inode, type, nblocks)
893 # define osd_transaction_size(dev) \
894 (osd_journal(dev)->j_max_transaction_buffers / 2)
896 # define LDISKFS_HT_MISC 0
897 # define osd_journal_start_sb(sb, type, nblock) \
898 ldiskfs_journal_start_sb(sb, nblock)
900 static inline struct buffer_head *osd_ldiskfs_append(handle_t *handle,
902 ldiskfs_lblk_t *nblock)
904 struct buffer_head *bh;
907 bh = ldiskfs_append(handle, inode, nblock, &err);
914 # define osd_ldiskfs_find_entry(dir, name, de, inlined, lock) \
915 (__ldiskfs_find_entry(dir, name, de, lock) ?: \
917 # define osd_journal_start(inode, type, nblocks) \
918 ldiskfs_journal_start(inode, nblocks)
919 # define osd_transaction_size(dev) \
920 (osd_journal(dev)->j_max_transaction_buffers)
924 * Invariants, assertions.
928 * XXX: do not enable this, until invariant checking code is made thread safe
929 * in the face of pdirops locking.
931 #define OSD_INVARIANT_CHECKS (0)
933 #if OSD_INVARIANT_CHECKS
934 static inline int osd_invariant(const struct osd_object *obj)
938 ergo(obj->oo_inode != NULL,
939 obj->oo_inode->i_sb == osd_sb(osd_obj2dev(obj)) &&
940 atomic_read(&obj->oo_inode->i_count) > 0) &&
941 ergo(obj->oo_dir != NULL &&
942 obj->oo_dir->od_conationer.ic_object != NULL,
943 obj->oo_dir->od_conationer.ic_object == obj->oo_inode);
946 #define osd_invariant(obj) (1)
949 #define OSD_MAX_CACHE_SIZE OBD_OBJECT_EOF
951 extern const struct dt_index_operations osd_otable_ops;
953 static inline int osd_oi_fid2idx(struct osd_device *dev,
954 const struct lu_fid *fid)
956 return fid->f_seq & (dev->od_oi_count - 1);
959 static inline struct osd_oi *osd_fid2oi(struct osd_device *osd,
960 const struct lu_fid *fid)
962 LASSERTF(!fid_is_idif(fid), DFID"\n", PFID(fid));
963 LASSERTF(!fid_is_last_id(fid), DFID"\n", PFID(fid));
964 LASSERTF(osd->od_oi_table != NULL && osd->od_oi_count >= 1,
965 DFID"\n", PFID(fid));
966 /* It can work even od_oi_count equals to 1 although it's unexpected,
967 * the only reason we set it to 1 is for performance measurement */
968 return osd->od_oi_table[osd_oi_fid2idx(osd, fid)];
971 extern const struct lu_device_operations osd_lu_ops;
973 static inline int lu_device_is_osd(const struct lu_device *d)
975 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &osd_lu_ops);
978 static inline struct osd_device *osd_dt_dev(const struct dt_device *d)
980 LASSERT(lu_device_is_osd(&d->dd_lu_dev));
981 return container_of0(d, struct osd_device, od_dt_dev);
984 static inline struct osd_device *osd_dev(const struct lu_device *d)
986 LASSERT(lu_device_is_osd(d));
987 return osd_dt_dev(container_of0(d, struct dt_device, dd_lu_dev));
990 static inline struct osd_device *osd_obj2dev(const struct osd_object *o)
992 return osd_dev(o->oo_dt.do_lu.lo_dev);
995 static inline struct super_block *osd_sb(const struct osd_device *dev)
997 return dev->od_mnt->mnt_sb;
1000 static inline const char *osd_dev2name(const struct osd_device *dev)
1002 return osd_sb(dev)->s_id;
1005 static inline const char *osd_ino2name(const struct inode *inode)
1007 return inode->i_sb->s_id;
1011 * Put the osd object once done with it.
1013 * \param obj osd object that needs to be put
1015 static inline void osd_object_put(const struct lu_env *env,
1016 struct osd_object *obj)
1018 dt_object_put(env, &obj->oo_dt);
1021 static inline int osd_object_is_root(const struct osd_object *obj)
1023 return osd_sb(osd_obj2dev(obj))->s_root->d_inode == obj->oo_inode;
1026 static inline struct osd_object *osd_obj(const struct lu_object *o)
1028 LASSERT(lu_device_is_osd(o->lo_dev));
1029 return container_of0(o, struct osd_object, oo_dt.do_lu);
1032 static inline struct osd_object *osd_dt_obj(const struct dt_object *d)
1034 return osd_obj(&d->do_lu);
1037 static inline struct lu_device *osd2lu_dev(struct osd_device *osd)
1039 return &osd->od_dt_dev.dd_lu_dev;
1042 static inline journal_t *osd_journal(const struct osd_device *dev)
1044 return LDISKFS_SB(osd_sb(dev))->s_journal;
1047 static inline struct seq_server_site *osd_seq_site(struct osd_device *osd)
1049 return osd->od_dt_dev.dd_lu_dev.ld_site->ld_seq_site;
1052 static inline char *osd_name(struct osd_device *osd)
1054 return osd->od_svname;
1057 static inline bool osd_is_ea_inode(struct inode *inode)
1059 return !!(LDISKFS_I(inode)->i_flags & LDISKFS_EA_INODE_FL);
1062 extern const struct dt_body_operations osd_body_ops;
1063 extern struct lu_context_key osd_key;
1065 static inline struct osd_thread_info *osd_oti_get(const struct lu_env *env)
1067 return lu_context_key_get(&env->le_ctx, &osd_key);
1070 extern const struct dt_body_operations osd_body_ops_new;
1076 struct iam_path_descr *osd_it_ipd_get(const struct lu_env *env,
1077 const struct iam_container *bag)
1079 return bag->ic_descr->id_ops->id_ipd_alloc(bag,
1080 osd_oti_get(env)->oti_it_ipd);
1084 struct iam_path_descr *osd_idx_ipd_get(const struct lu_env *env,
1085 const struct iam_container *bag)
1087 return bag->ic_descr->id_ops->id_ipd_alloc(bag,
1088 osd_oti_get(env)->oti_idx_ipd);
1091 static inline void osd_ipd_put(const struct lu_env *env,
1092 const struct iam_container *bag,
1093 struct iam_path_descr *ipd)
1095 bag->ic_descr->id_ops->id_ipd_free(ipd);
1098 int osd_calc_bkmap_credits(struct super_block *sb, struct inode *inode,
1099 const loff_t size, const loff_t pos,
1102 int osd_ldiskfs_read(struct inode *inode, void *buf, int size, loff_t *offs);
1103 int osd_ldiskfs_write_record(struct inode *inode, void *buf, int bufsize,
1104 int write_NUL, loff_t *offs, handle_t *handle);
1107 struct dentry *osd_child_dentry_by_inode(const struct lu_env *env,
1108 struct inode *inode,
1109 const char *name, const int namelen)
1111 struct osd_thread_info *info = osd_oti_get(env);
1112 struct dentry *child_dentry = &info->oti_child_dentry;
1113 struct dentry *obj_dentry = &info->oti_obj_dentry;
1115 obj_dentry->d_inode = inode;
1116 obj_dentry->d_sb = inode->i_sb;
1117 obj_dentry->d_name.hash = 0;
1119 child_dentry->d_name.hash = 0;
1120 child_dentry->d_parent = obj_dentry;
1121 child_dentry->d_name.name = name;
1122 child_dentry->d_name.len = namelen;
1123 return child_dentry;
1126 extern int osd_trans_declare_op2rb[];
1127 extern int ldiskfs_track_declares_assert;
1128 void osd_trans_dump_creds(const struct lu_env *env, struct thandle *th);
1130 static inline void osd_trans_declare_op(const struct lu_env *env,
1131 struct osd_thandle *oh,
1132 enum osd_op_type op, int credits)
1134 struct osd_thread_info *oti = osd_oti_get(env);
1136 LASSERT(oh->ot_handle == NULL);
1137 if (unlikely(op >= OSD_OT_MAX)) {
1138 if (unlikely(ldiskfs_track_declares_assert)) {
1139 LASSERT(op < OSD_OT_MAX);
1141 CWARN("%s: Invalid operation index %d\n",
1142 osd_name(osd_dt_dev(oh->ot_super.th_dev)), op);
1143 libcfs_debug_dumpstack(NULL);
1146 oti->oti_declare_ops[op]++;
1147 oti->oti_declare_ops_cred[op] += credits;
1149 oh->ot_credits += credits;
1152 static inline void osd_trans_exec_op(const struct lu_env *env,
1154 enum osd_op_type op)
1156 struct osd_thread_info *oti = osd_oti_get(env);
1157 struct osd_thandle *oh = container_of(th, struct osd_thandle,
1159 unsigned int rb, left;
1161 LASSERT(oh->ot_handle != NULL);
1162 if (unlikely(op >= OSD_OT_MAX)) {
1163 if (unlikely(ldiskfs_track_declares_assert))
1164 LASSERT(op < OSD_OT_MAX);
1166 CWARN("%s: opcode %u: invalid value >= %u\n",
1167 osd_name(osd_dt_dev(oh->ot_super.th_dev)),
1169 libcfs_debug_dumpstack(NULL);
1174 /* find rollback (or reverse) operation for the given one
1175 * such an operation doesn't require additional credits
1176 * as the same set of blocks are modified */
1177 rb = osd_trans_declare_op2rb[op];
1179 /* check whether credits for this operation were reserved at all */
1180 if (unlikely(oti->oti_declare_ops_cred[op] == 0 &&
1181 oti->oti_declare_ops_cred[rb] == 0)) {
1182 /* the API is not perfect yet: CREATE does REF_ADD internally
1183 * while DESTROY does not. To rollback CREATE the callers
1184 * needs to call REF_DEL+DESTROY which is hard to detect using
1185 * a simple table of rollback operations */
1186 if (op == OSD_OT_REF_DEL &&
1187 oti->oti_declare_ops_cred[OSD_OT_CREATE] > 0)
1189 if (op == OSD_OT_REF_ADD &&
1190 oti->oti_declare_ops_cred[OSD_OT_DESTROY] > 0)
1192 CWARN("%s: opcode %u: credits = 0, rollback = %u\n",
1193 osd_name(osd_dt_dev(oh->ot_super.th_dev)), op, rb);
1194 osd_trans_dump_creds(env, th);
1195 LASSERT(!ldiskfs_track_declares_assert);
1199 /* remember how many credits we have unused before the operation */
1200 oti->oti_credits_before = oh->ot_handle->h_buffer_credits;
1201 left = oti->oti_declare_ops_cred[op] - oti->oti_declare_ops_used[op];
1202 if (unlikely(oti->oti_credits_before < left)) {
1203 CWARN("%s: opcode %u: before %u < left %u, rollback = %u\n",
1204 osd_name(osd_dt_dev(oh->ot_super.th_dev)), op,
1205 oti->oti_credits_before, left, rb);
1206 osd_trans_dump_creds(env, th);
1207 /* on a very small fs (testing?) it's possible that
1208 * the transaction can't fit 1/4 of journal, so we
1209 * just request less credits (see osd_trans_start()).
1210 * ignore the same case here */
1211 rb = osd_transaction_size(osd_dt_dev(th->th_dev));
1212 if (unlikely(oh->ot_credits < rb))
1213 LASSERT(!ldiskfs_track_declares_assert);
1217 static inline void osd_trans_exec_check(const struct lu_env *env,
1219 enum osd_op_type op)
1221 struct osd_thread_info *oti = osd_oti_get(env);
1222 struct osd_thandle *oh = container_of(th, struct osd_thandle,
1224 int used, over, quota;
1226 /* how many credits have been used by the operation */
1227 used = oti->oti_credits_before - oh->ot_handle->h_buffer_credits;
1229 if (unlikely(used < 0)) {
1230 /* if some block was allocated and released in the same
1231 * transaction, then it won't be a part of the transaction
1232 * and delta can be negative */
1237 /* rollback operations (e.g. when we destroy just created
1238 * object) should not consume any credits. there is no point
1239 * to confuse the checks below */
1243 oti->oti_declare_ops_used[op] += used;
1244 if (oti->oti_declare_ops_used[op] <= oti->oti_declare_ops_cred[op])
1247 /* we account quota for a whole transaction and any operation can
1248 * consume corresponding credits */
1249 over = oti->oti_declare_ops_used[op] -
1250 oti->oti_declare_ops_cred[op];
1251 quota = oti->oti_declare_ops_cred[OSD_OT_QUOTA] -
1252 oti->oti_declare_ops_used[OSD_OT_QUOTA];
1253 if (over <= quota) {
1254 /* probably that credits were consumed by
1255 * quota indirectly (in the depths of ldiskfs) */
1256 oti->oti_declare_ops_used[OSD_OT_QUOTA] += over;
1257 oti->oti_declare_ops_used[op] -= over;
1259 CWARN("%s: opcode %d: used %u, used now %u, reserved %u\n",
1260 osd_name(osd_dt_dev(oh->ot_super.th_dev)), op,
1261 oti->oti_declare_ops_used[op], used,
1262 oti->oti_declare_ops_cred[op]);
1263 osd_trans_dump_creds(env, th);
1264 if (unlikely(ldiskfs_track_declares_assert))
1270 * Helper function to pack the fid, ldiskfs stores fid in packed format.
1273 void osd_fid_pack(struct osd_fid_pack *pack, const struct dt_rec *fid,
1274 struct lu_fid *befider)
1276 fid_cpu_to_be(befider, (struct lu_fid *)fid);
1277 memcpy(pack->fp_area, befider, sizeof(*befider));
1278 pack->fp_len = sizeof(*befider) + 1;
1282 int osd_fid_unpack(struct lu_fid *fid, const struct osd_fid_pack *pack)
1287 switch (pack->fp_len) {
1288 case sizeof *fid + 1:
1289 memcpy(fid, pack->fp_area, sizeof *fid);
1290 fid_be_to_cpu(fid, fid);
1293 CERROR("Unexpected packed fid size: %d\n", pack->fp_len);
1300 * Quota/Accounting handling
1302 extern const struct dt_index_operations osd_acct_index_ops;
1303 int osd_acct_obj_lookup(struct osd_thread_info *info, struct osd_device *osd,
1304 const struct lu_fid *fid, struct osd_inode_id *id);
1306 /* copy from fs/ext4/dir.c */
1307 static inline int is_32bit_api(void)
1309 #ifdef CONFIG_COMPAT
1310 return in_compat_syscall();
1312 return (BITS_PER_LONG == 32);
1316 static inline loff_t ldiskfs_get_htree_eof(struct file *filp)
1318 if ((filp->f_mode & FMODE_32BITHASH) ||
1319 (!(filp->f_mode & FMODE_64BITHASH) && is_32bit_api()))
1320 return LDISKFS_HTREE_EOF_32BIT;
1322 return LDISKFS_HTREE_EOF_64BIT;
1325 static inline int fid_is_internal(const struct lu_fid *fid)
1327 return (!fid_is_namespace_visible(fid) && !fid_is_idif(fid));
1330 static inline bool is_remote_parent_ino(struct osd_device *o, unsigned long ino)
1335 LASSERT(o->od_mdt_map != NULL);
1337 return ino == o->od_mdt_map->omm_remote_parent->d_inode->i_ino;
1341 * ext4_bread/ldiskfs_bread has either 5 or 4 parameters. The error
1342 * return code has been removed and integrated into the pointer in the
1345 static inline struct buffer_head *__ldiskfs_bread(handle_t *handle,
1346 struct inode *inode,
1347 ldiskfs_lblk_t block,
1351 struct buffer_head *bh;
1354 rc = osd_attach_jinode(inode);
1358 #ifdef HAVE_EXT4_BREAD_4ARGS
1359 bh = ldiskfs_bread(handle, inode, block, create);
1362 bh = ldiskfs_bread(handle, inode, block, create, &rc);
1363 if (bh == NULL && rc != 0)
1369 #ifndef HAVE_BIO_INTEGRITY_ENABLED
1370 bool bio_integrity_enabled(struct bio *bio);
1374 # define bio_get_dev(bio) ((bio)->bi_bdev)
1375 # define bio_get_disk(bio) (bio_get_dev(bio)->bd_disk)
1376 # define bio_get_queue(bio) bdev_get_queue(bio_get_dev(bio))
1377 # define bio_set_dev(bio, bdev) (bio_get_dev(bio) = (bdev))
1379 # define bio_get_disk(bio) ((bio)->bi_disk)
1380 # define bio_get_queue(bio) (bio_get_disk(bio)->queue)
1383 void ldiskfs_inc_count(handle_t *handle, struct inode *inode);
1384 void ldiskfs_dec_count(handle_t *handle, struct inode *inode);
1386 void osd_fini_iobuf(struct osd_device *d, struct osd_iobuf *iobuf);
1389 osd_index_register(struct osd_device *osd, const struct lu_fid *fid,
1390 __u32 keysize, __u32 recsize)
1392 return lustre_index_register(&osd->od_dt_dev, osd_name(osd),
1393 &osd->od_index_backup_list, &osd->od_lock,
1394 &osd->od_index_backup_stop,
1395 fid, keysize, recsize);
1399 osd_index_backup(const struct lu_env *env, struct osd_device *osd, bool backup)
1401 struct osd_thread_info *info = osd_oti_get(env);
1402 struct lu_fid *fid = &info->oti_fid3;
1403 struct osd_inode_id *id = &info->oti_id3;
1405 lu_local_obj_fid(fid, INDEX_BACKUP_OID);
1406 osd_id_gen(id, osd->od_index_backup_inode->i_ino,
1407 osd->od_index_backup_inode->i_generation);
1408 osd_add_oi_cache(info, osd, id, fid);
1410 lustre_index_backup(env, &osd->od_dt_dev, osd_name(osd),
1411 &osd->od_index_backup_list, &osd->od_lock,
1412 &osd->od_index_backup_stop, backup);
1415 #ifdef LDISKFS_HAS_INCOMPAT_FEATURE
1417 # ifdef LDISKFS_FEATURE_INCOMPAT_EXTENTS
1418 # define ldiskfs_has_feature_extents(sb) \
1419 LDISKFS_HAS_INCOMPAT_FEATURE(sb, LDISKFS_FEATURE_INCOMPAT_EXTENTS)
1421 # ifdef LDISKFS_FEATURE_INCOMPAT_EA_INODE
1422 # define ldiskfs_has_feature_ea_inode(sb) \
1423 LDISKFS_HAS_INCOMPAT_FEATURE(sb, LDISKFS_FEATURE_INCOMPAT_EA_INODE)
1425 # ifdef LDISKFS_FEATURE_INCOMPAT_DIRDATA
1426 # define ldiskfs_has_feature_dirdata(sb) \
1427 LDISKFS_HAS_INCOMPAT_FEATURE(sb, LDISKFS_FEATURE_INCOMPAT_DIRDATA)
1429 # ifdef LDISKFS_FEATURE_COMPAT_HAS_JOURNAL
1430 # define ldiskfs_has_feature_journal(sb) \
1431 LDISKFS_HAS_COMPAT_FEATURE(sb, LDISKFS_FEATURE_COMPAT_HAS_JOURNAL)
1433 # ifdef LDISKFS_FEATURE_RO_COMPAT_QUOTA
1434 # define ldiskfs_has_feature_quota(sb) \
1435 LDISKFS_HAS_RO_COMPAT_FEATURE(sb, LDISKFS_FEATURE_RO_COMPAT_QUOTA)
1437 # ifdef LDISKFS_FEATURE_RO_COMPAT_PROJECT
1438 # define ldiskfs_has_feature_project(sb) \
1439 LDISKFS_HAS_RO_COMPAT_FEATURE(sb, LDISKFS_FEATURE_RO_COMPAT_PROJECT)
1444 int osd_trunc_lock(struct osd_object *obj, struct osd_thandle *oh,
1446 void osd_trunc_unlock_all(struct list_head *list);
1447 void osd_process_truncates(struct list_head *list);
1448 void osd_execute_truncate(struct osd_object *obj);
1450 #ifdef HAVE_BIO_ENDIO_USES_ONE_ARG
1451 #define osd_dio_complete_routine(bio, error) dio_complete_routine(bio)
1453 #define osd_dio_complete_routine(bio, error) dio_complete_routine(bio, error)
1456 #ifndef HAVE___BI_CNT
1457 #define __bi_cnt bi_cnt
1461 #define bi_opf bi_rw
1464 #ifndef HAVE_CLEAN_BDEV_ALIASES
1465 #define clean_bdev_aliases(bdev, block, len) \
1466 unmap_underlying_metadata((bdev), (block))
1469 #ifndef HAVE_BI_STATUS
1470 #define bi_status bi_error
1474 * Maximum size of xattr attributes for FEATURE_INCOMPAT_EA_INODE 1Mb
1475 * This limit is arbitrary, but is reasonable for the xattr API.
1477 #define LDISKFS_XATTR_MAX_LARGE_EA_SIZE (1024 * 1024)
1479 struct osd_bio_private {
1480 struct osd_iobuf *obp_iobuf;
1481 /* Start page index in the obp_iobuf for the bio */
1482 int obp_start_page_idx;
1485 #ifdef HAVE_BIO_INTEGRITY_PREP_FN
1486 int osd_get_integrity_profile(struct osd_device *osd,
1487 integrity_gen_fn **generate_fn,
1488 integrity_vrfy_fn **verify_fn);
1490 #define integrity_gen_fn void
1491 #define integrity_vrfy_fn int
1492 static inline int osd_get_integrity_profile(struct osd_device *osd,
1493 integrity_gen_fn **generate_fn,
1494 integrity_vrfy_fn **verify_fn)
1499 static inline bool bio_integrity_prep_fn(struct bio *bio,
1500 integrity_gen_fn *generate_fn,
1501 integrity_vrfy_fn *verify_fn)
1503 return bio_integrity_prep(bio);
1507 #endif /* _OSD_INTERNAL_H */