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, 2015, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/include/lustre_fid.h
34 * Author: Yury Umanets <umka@clusterfs.com>
37 #ifndef __LUSTRE_FID_H
38 #define __LUSTRE_FID_H
44 * http://wiki.lustre.org/index.php/Architecture_-_Interoperability_fids_zfs
45 * describes the FID namespace and interoperability requirements for FIDs.
46 * The important parts of that document are included here for reference.
49 * File IDentifier generated by client from range allocated by the SEQuence
50 * service and stored in struct lu_fid. The FID is composed of three parts:
51 * SEQuence, ObjectID, and VERsion. The SEQ component is a filesystem
52 * unique 64-bit integer, and only one client is ever assigned any SEQ value.
53 * The first 0x400 FID_SEQ_NORMAL [2^33, 2^33 + 0x400] values are reserved
54 * for system use. The OID component is a 32-bit value generated by the
55 * client on a per-SEQ basis to allow creating many unique FIDs without
56 * communication with the server. The VER component is a 32-bit value that
57 * distinguishes between different FID instantiations, such as snapshots or
58 * separate subtrees within the filesystem. FIDs with the same VER field
59 * are considered part of the same namespace.
61 * OLD filesystems are those upgraded from Lustre 1.x that predate FIDs, and
62 * MDTs use 32-bit ldiskfs internal inode/generation numbers (IGIFs), while
63 * OSTs use 64-bit Lustre object IDs and generation numbers.
65 * NEW filesystems are those formatted since the introduction of FIDs.
68 * Inode and Generation In FID, a surrogate FID used to globally identify
69 * an existing object on OLD formatted MDT file system. This would only be
70 * used on MDT0 in a DNE filesystem, because there cannot be more than one
71 * MDT in an OLD formatted filesystem. Belongs to sequence in [12, 2^32 - 1]
72 * range, where inode number is stored in SEQ, and inode generation is in OID.
73 * NOTE: This assumes no more than 2^32-1 inodes exist in the MDT filesystem,
74 * which is the maximum possible for an ldiskfs backend. It also assumes
75 * that the reserved ext3/ext4/ldiskfs inode numbers [0-11] are never visible
76 * to clients, which has always been true.
79 * object ID In FID, a surrogate FID used to globally identify an existing
80 * OST object on OLD formatted OST file system. Belongs to a sequence in
81 * [2^32, 2^33 - 1]. Sequence number is calculated as:
83 * 1 << 32 | (ost_index << 16) | ((objid >> 32) & 0xffff)
85 * that is, SEQ consists of 16-bit OST index, and higher 16 bits of object
86 * ID. The generation of unique SEQ values per OST allows the IDIF FIDs to
87 * be identified in the FLD correctly. The OID field is calculated as:
91 * that is, it consists of lower 32 bits of object ID. For objects within
92 * the IDIF range, object ID extraction will be:
94 * o_id = (fid->f_seq & 0x7fff) << 16 | fid->f_oid;
95 * o_seq = 0; // formerly group number
97 * NOTE: This assumes that no more than 2^48-1 objects have ever been created
98 * on any OST, and that no more than 65535 OSTs are in use. Both are very
99 * reasonable assumptions, i.e. an IDIF can uniquely map all objects assuming
100 * a maximum creation rate of 1M objects per second for a maximum of 9 years,
101 * or combinations thereof.
104 * Surrogate FID used to identify an existing object on OLD formatted OST
105 * filesystem. Belongs to the reserved SEQuence 0, and is used prior to
106 * the introduction of FID-on-OST, at which point IDIF will be used to
107 * identify objects as residing on a specific OST.
110 * For Lustre Log objects the object sequence 1 is used. This is compatible
111 * with both OLD and NEW namespaces, as this SEQ number is in the
112 * ext3/ldiskfs reserved inode range and does not conflict with IGIF
116 * For testing OST IO performance the object sequence 2 is used. This is
117 * compatible with both OLD and NEW namespaces, as this SEQ number is in
118 * the ext3/ldiskfs reserved inode range and does not conflict with IGIF
121 * OST_MDT1 .. OST_MAX
122 * For testing with multiple MDTs the object sequence 3 through 9 is used,
123 * allowing direct mapping of MDTs 1 through 7 respectively, for a total
124 * of 8 MDTs including OST_MDT0. This matches the legacy CMD project "group"
125 * mappings. However, this SEQ range is only for testing prior to any
126 * production DNE release, as the objects in this range conflict across all
127 * OSTs, as the OST index is not part of the FID. For production DNE usage,
128 * OST objects created by MDT1+ will use FID_SEQ_NORMAL FIDs.
130 * DLM OST objid to IDIF mapping
131 * For compatibility with existing OLD OST network protocol structures, the
132 * FID must map onto the o_id and o_seq in a manner that ensures existing
133 * objects are identified consistently for IO, as well as onto the LDLM
134 * namespace to ensure IDIFs there is only a single resource name for any
135 * object in the DLM. The OLD OST object DLM resource mapping is:
137 * resource[] = {o_id, o_seq, 0, 0}; // o_seq == 0 for production releases
139 * The NEW OST object DLM resource mapping is the same for both MDT and OST:
141 * resource[] = {SEQ, OID, VER, HASH};
143 * NOTE: for mapping IDIF values to DLM resource names the o_id may be
144 * larger than the 2^33 reserved sequence numbers for IDIF, so it is possible
145 * for the o_id numbers to overlap FID SEQ numbers in the resource. However,
146 * in all production releases the OLD o_seq field is always zero, and all
147 * valid FID OID values are non-zero, so the lock resources will not collide.
148 * Even so, the MDT and OST resources are also in different LDLM namespaces.
151 #include "../../include/linux/libcfs/libcfs.h"
152 #include "lustre/lustre_idl.h"
160 /* Whole sequences space range and zero range definitions */
161 extern const struct lu_seq_range LUSTRE_SEQ_SPACE_RANGE
;
162 extern const struct lu_seq_range LUSTRE_SEQ_ZERO_RANGE
;
163 extern const struct lu_fid LUSTRE_BFL_FID
;
164 extern const struct lu_fid LU_OBF_FID
;
165 extern const struct lu_fid LU_DOT_LUSTRE_FID
;
169 * This is how may metadata FIDs may be allocated in one sequence(128k)
171 LUSTRE_METADATA_SEQ_MAX_WIDTH
= 0x0000000000020000ULL
,
174 * This is how many data FIDs could be allocated in one sequence(4B - 1)
176 LUSTRE_DATA_SEQ_MAX_WIDTH
= 0x00000000FFFFFFFFULL
,
179 * How many sequences to allocate to a client at once.
181 LUSTRE_SEQ_META_WIDTH
= 0x0000000000000001ULL
,
184 * seq allocation pool size.
186 LUSTRE_SEQ_BATCH_WIDTH
= LUSTRE_SEQ_META_WIDTH
* 1000,
189 * This is how many sequences may be in one super-sequence allocated to
192 LUSTRE_SEQ_SUPER_WIDTH
= ((1ULL << 30ULL) * LUSTRE_SEQ_META_WIDTH
)
196 /** 2^6 FIDs for OI containers */
197 OSD_OI_FID_OID_BITS
= 6,
198 /** reserve enough FIDs in case we want more in the future */
199 OSD_OI_FID_OID_BITS_MAX
= 10,
202 /** special OID for local objects */
204 /** \see fld_mod_init */
206 /** \see fid_mod_init */
207 FID_SEQ_CTL_OID
= 4UL,
208 FID_SEQ_SRV_OID
= 5UL,
209 /** \see mdd_mod_init */
210 MDD_ROOT_INDEX_OID
= 6UL, /* deprecated in 2.4 */
211 MDD_ORPHAN_OID
= 7UL, /* deprecated in 2.4 */
212 MDD_LOV_OBJ_OID
= 8UL,
213 MDD_CAPA_KEYS_OID
= 9UL,
214 /** \see mdt_mod_init */
215 LAST_RECV_OID
= 11UL,
216 OSD_FS_ROOT_OID
= 13UL,
217 ACCT_USER_OID
= 15UL,
218 ACCT_GROUP_OID
= 16UL,
219 LFSCK_BOOKMARK_OID
= 17UL,
220 OTABLE_IT_OID
= 18UL,
221 /* These two definitions are obsolete
222 * OFD_GROUP0_LAST_OID = 20UL,
223 * OFD_GROUP4K_LAST_OID = 20UL+4096,
225 OFD_LAST_GROUP_OID
= 4117UL,
226 LLOG_CATALOGS_OID
= 4118UL,
227 MGS_CONFIGS_OID
= 4119UL,
228 OFD_HEALTH_CHECK_OID
= 4120UL,
229 MDD_LOV_OBJ_OSEQ
= 4121UL,
230 LFSCK_NAMESPACE_OID
= 4122UL,
231 REMOTE_PARENT_DIR_OID
= 4123UL,
234 static inline void lu_local_obj_fid(struct lu_fid
*fid
, __u32 oid
)
236 fid
->f_seq
= FID_SEQ_LOCAL_FILE
;
241 static inline void lu_local_name_obj_fid(struct lu_fid
*fid
, __u32 oid
)
243 fid
->f_seq
= FID_SEQ_LOCAL_NAME
;
248 /* For new FS (>= 2.4), the root FID will be changed to
249 * [FID_SEQ_ROOT:1:0], for existing FS, (upgraded to 2.4),
250 * the root FID will still be IGIF
252 static inline int fid_is_root(const struct lu_fid
*fid
)
254 return unlikely((fid_seq(fid
) == FID_SEQ_ROOT
&&
258 static inline int fid_is_dot_lustre(const struct lu_fid
*fid
)
260 return unlikely(fid_seq(fid
) == FID_SEQ_DOT_LUSTRE
&&
261 fid_oid(fid
) == FID_OID_DOT_LUSTRE
);
264 static inline int fid_is_obf(const struct lu_fid
*fid
)
266 return unlikely(fid_seq(fid
) == FID_SEQ_DOT_LUSTRE
&&
267 fid_oid(fid
) == FID_OID_DOT_LUSTRE_OBF
);
270 static inline int fid_is_otable_it(const struct lu_fid
*fid
)
272 return unlikely(fid_seq(fid
) == FID_SEQ_LOCAL_FILE
&&
273 fid_oid(fid
) == OTABLE_IT_OID
);
276 static inline int fid_is_acct(const struct lu_fid
*fid
)
278 return fid_seq(fid
) == FID_SEQ_LOCAL_FILE
&&
279 (fid_oid(fid
) == ACCT_USER_OID
||
280 fid_oid(fid
) == ACCT_GROUP_OID
);
283 static inline int fid_is_quota(const struct lu_fid
*fid
)
285 return fid_seq(fid
) == FID_SEQ_QUOTA
||
286 fid_seq(fid
) == FID_SEQ_QUOTA_GLB
;
289 static inline int fid_is_namespace_visible(const struct lu_fid
*fid
)
291 const __u64 seq
= fid_seq(fid
);
293 /* Here, we cannot distinguish whether the normal FID is for OST
294 * object or not. It is caller's duty to check more if needed.
296 return (!fid_is_last_id(fid
) &&
297 (fid_seq_is_norm(seq
) || fid_seq_is_igif(seq
))) ||
298 fid_is_root(fid
) || fid_is_dot_lustre(fid
);
301 static inline int fid_seq_in_fldb(__u64 seq
)
303 return fid_seq_is_igif(seq
) || fid_seq_is_norm(seq
) ||
304 fid_seq_is_root(seq
) || fid_seq_is_dot(seq
);
307 static inline void lu_last_id_fid(struct lu_fid
*fid
, __u64 seq
, __u32 ost_idx
)
309 if (fid_seq_is_mdt0(seq
)) {
310 fid
->f_seq
= fid_idif_seq(0, ost_idx
);
312 LASSERTF(fid_seq_is_norm(seq
) || fid_seq_is_echo(seq
) ||
313 fid_seq_is_idif(seq
), "%#llx\n", seq
);
320 /* seq client type */
322 LUSTRE_SEQ_METADATA
= 1,
328 LUSTRE_SEQ_CONTROLLER
331 /* Client sequence manager interface. */
332 struct lu_client_seq
{
333 /* Sequence-controller export. */
334 struct obd_export
*lcs_exp
;
335 struct mutex lcs_mutex
;
338 * Range of allowed for allocation sequences. When using lu_client_seq on
339 * clients, this contains meta-sequence range. And for servers this
340 * contains super-sequence range.
342 struct lu_seq_range lcs_space
;
344 /* Seq related proc */
345 struct dentry
*lcs_debugfs_entry
;
347 /* This holds last allocated fid in last obtained seq */
348 struct lu_fid lcs_fid
;
350 /* LUSTRE_SEQ_METADATA or LUSTRE_SEQ_DATA */
351 enum lu_cli_type lcs_type
;
354 * Service uuid, passed from MDT + seq name to form unique seq name to
355 * use it with procfs.
357 char lcs_name
[LUSTRE_MDT_MAXNAMELEN
];
360 * Sequence width, that is how many objects may be allocated in one
361 * sequence. Default value for it is LUSTRE_SEQ_MAX_WIDTH.
365 /* wait queue for fid allocation and update indicator */
366 wait_queue_head_t lcs_waitq
;
371 void seq_client_flush(struct lu_client_seq
*seq
);
373 int seq_client_alloc_fid(const struct lu_env
*env
, struct lu_client_seq
*seq
,
375 /* Fids common stuff */
376 int fid_is_local(const struct lu_env
*env
,
377 struct lu_site
*site
, const struct lu_fid
*fid
);
380 int client_fid_init(struct obd_device
*obd
, struct obd_export
*exp
,
381 enum lu_cli_type type
);
382 int client_fid_fini(struct obd_device
*obd
);
386 struct ldlm_namespace
;
389 * Build (DLM) resource name from FID.
391 * NOTE: until Lustre 1.8.7/2.1.1 the fid_ver() was packed into name[2],
392 * but was moved into name[1] along with the OID to avoid consuming the
393 * renaming name[2,3] fields that need to be used for the quota identifier.
395 static inline struct ldlm_res_id
*
396 fid_build_reg_res_name(const struct lu_fid
*fid
, struct ldlm_res_id
*res
)
398 memset(res
, 0, sizeof(*res
));
399 res
->name
[LUSTRE_RES_ID_SEQ_OFF
] = fid_seq(fid
);
400 res
->name
[LUSTRE_RES_ID_VER_OID_OFF
] = fid_ver_oid(fid
);
406 * Return true if resource is for object identified by FID.
408 static inline int fid_res_name_eq(const struct lu_fid
*fid
,
409 const struct ldlm_res_id
*res
)
411 return res
->name
[LUSTRE_RES_ID_SEQ_OFF
] == fid_seq(fid
) &&
412 res
->name
[LUSTRE_RES_ID_VER_OID_OFF
] == fid_ver_oid(fid
);
416 * Extract FID from LDLM resource. Reverse of fid_build_reg_res_name().
418 static inline struct lu_fid
*
419 fid_extract_from_res_name(struct lu_fid
*fid
, const struct ldlm_res_id
*res
)
421 fid
->f_seq
= res
->name
[LUSTRE_RES_ID_SEQ_OFF
];
422 fid
->f_oid
= (__u32
)(res
->name
[LUSTRE_RES_ID_VER_OID_OFF
]);
423 fid
->f_ver
= (__u32
)(res
->name
[LUSTRE_RES_ID_VER_OID_OFF
] >> 32);
424 LASSERT(fid_res_name_eq(fid
, res
));
430 * Build (DLM) resource identifier from global quota FID and quota ID.
432 static inline struct ldlm_res_id
*
433 fid_build_quota_res_name(const struct lu_fid
*glb_fid
, union lquota_id
*qid
,
434 struct ldlm_res_id
*res
)
436 fid_build_reg_res_name(glb_fid
, res
);
437 res
->name
[LUSTRE_RES_ID_QUOTA_SEQ_OFF
] = fid_seq(&qid
->qid_fid
);
438 res
->name
[LUSTRE_RES_ID_QUOTA_VER_OID_OFF
] = fid_ver_oid(&qid
->qid_fid
);
444 * Extract global FID and quota ID from resource name
446 static inline void fid_extract_from_quota_res(struct lu_fid
*glb_fid
,
447 union lquota_id
*qid
,
448 const struct ldlm_res_id
*res
)
450 fid_extract_from_res_name(glb_fid
, res
);
451 qid
->qid_fid
.f_seq
= res
->name
[LUSTRE_RES_ID_QUOTA_SEQ_OFF
];
452 qid
->qid_fid
.f_oid
= (__u32
)res
->name
[LUSTRE_RES_ID_QUOTA_VER_OID_OFF
];
454 (__u32
)(res
->name
[LUSTRE_RES_ID_QUOTA_VER_OID_OFF
] >> 32);
457 static inline struct ldlm_res_id
*
458 fid_build_pdo_res_name(const struct lu_fid
*fid
, unsigned int hash
,
459 struct ldlm_res_id
*res
)
461 fid_build_reg_res_name(fid
, res
);
462 res
->name
[LUSTRE_RES_ID_HSH_OFF
] = hash
;
468 * Build DLM resource name from object id & seq, which will be removed
469 * finally, when we replace ost_id with FID in data stack.
471 * Currently, resid from the old client, whose res[0] = object_id,
472 * res[1] = object_seq, is just opposite with Metatdata
473 * resid, where, res[0] = fid->f_seq, res[1] = fid->f_oid.
474 * To unify the resid identification, we will reverse the data
475 * resid to keep it same with Metadata resid, i.e.
477 * For resid from the old client,
478 * res[0] = objid, res[1] = 0, still keep the original order,
482 * res will be built from normal FID directly, i.e. res[0] = f_seq,
483 * res[1] = f_oid + f_ver.
485 static inline void ostid_build_res_name(struct ost_id
*oi
,
486 struct ldlm_res_id
*name
)
488 memset(name
, 0, sizeof(*name
));
489 if (fid_seq_is_mdt0(ostid_seq(oi
))) {
490 name
->name
[LUSTRE_RES_ID_SEQ_OFF
] = ostid_id(oi
);
491 name
->name
[LUSTRE_RES_ID_VER_OID_OFF
] = ostid_seq(oi
);
493 fid_build_reg_res_name(&oi
->oi_fid
, name
);
498 * Return true if the resource is for the object identified by this id & group.
500 static inline int ostid_res_name_eq(struct ost_id
*oi
,
501 struct ldlm_res_id
*name
)
503 /* Note: it is just a trick here to save some effort, probably the
504 * correct way would be turn them into the FID and compare
506 if (fid_seq_is_mdt0(ostid_seq(oi
))) {
507 return name
->name
[LUSTRE_RES_ID_SEQ_OFF
] == ostid_id(oi
) &&
508 name
->name
[LUSTRE_RES_ID_VER_OID_OFF
] == ostid_seq(oi
);
510 return name
->name
[LUSTRE_RES_ID_SEQ_OFF
] == ostid_seq(oi
) &&
511 name
->name
[LUSTRE_RES_ID_VER_OID_OFF
] == ostid_id(oi
);
515 /* The same as osc_build_res_name() */
516 static inline void ost_fid_build_resid(const struct lu_fid
*fid
,
517 struct ldlm_res_id
*resname
)
519 if (fid_is_mdt0(fid
) || fid_is_idif(fid
)) {
522 oi
.oi
.oi_id
= 0; /* gcc 4.7.2 complains otherwise */
523 if (fid_to_ostid(fid
, &oi
) != 0)
525 ostid_build_res_name(&oi
, resname
);
527 fid_build_reg_res_name(fid
, resname
);
531 static inline void ost_fid_from_resid(struct lu_fid
*fid
,
532 const struct ldlm_res_id
*name
,
535 if (fid_seq_is_mdt0(name
->name
[LUSTRE_RES_ID_VER_OID_OFF
])) {
539 ostid_set_seq(&oi
, name
->name
[LUSTRE_RES_ID_VER_OID_OFF
]);
540 ostid_set_id(&oi
, name
->name
[LUSTRE_RES_ID_SEQ_OFF
]);
541 ostid_to_fid(fid
, &oi
, ost_idx
);
544 fid_extract_from_res_name(fid
, name
);
549 * Flatten 128-bit FID values into a 64-bit value for use as an inode number.
550 * For non-IGIF FIDs this starts just over 2^32, and continues without
551 * conflict until 2^64, at which point we wrap the high 24 bits of the SEQ
552 * into the range where there may not be many OID values in use, to minimize
553 * the risk of conflict.
555 * Suppose LUSTRE_SEQ_MAX_WIDTH less than (1 << 24) which is currently true,
556 * the time between re-used inode numbers is very long - 2^40 SEQ numbers,
557 * or about 2^40 client mounts, if clients create less than 2^24 files/mount.
559 static inline __u64
fid_flatten(const struct lu_fid
*fid
)
564 if (fid_is_igif(fid
)) {
565 ino
= lu_igif_ino(fid
);
571 ino
= (seq
<< 24) + ((seq
>> 24) & 0xffffff0000ULL
) + fid_oid(fid
);
573 return ino
? ino
: fid_oid(fid
);
576 static inline __u32
fid_hash(const struct lu_fid
*f
, int bits
)
578 /* all objects with same id and different versions will belong to same
581 return hash_long(fid_flatten(f
), bits
);
585 * map fid to 32 bit value for ino on 32bit systems.
587 static inline __u32
fid_flatten32(const struct lu_fid
*fid
)
592 if (fid_is_igif(fid
)) {
593 ino
= lu_igif_ino(fid
);
597 seq
= fid_seq(fid
) - FID_SEQ_START
;
599 /* Map the high bits of the OID into higher bits of the inode number so
600 * that inodes generated at about the same time have a reduced chance
601 * of collisions. This will give a period of 2^12 = 1024 unique clients
602 * (from SEQ) and up to min(LUSTRE_SEQ_MAX_WIDTH, 2^20) = 128k objects
603 * (from OID), or up to 128M inodes without collisions for new files.
605 ino
= ((seq
& 0x000fffffULL
) << 12) + ((seq
>> 8) & 0xfffff000) +
606 (seq
>> (64 - (40-8)) & 0xffffff00) +
607 (fid_oid(fid
) & 0xff000fff) + ((fid_oid(fid
) & 0x00fff000) << 8);
609 return ino
? ino
: fid_oid(fid
);
612 static inline int lu_fid_diff(struct lu_fid
*fid1
, struct lu_fid
*fid2
)
614 LASSERTF(fid_seq(fid1
) == fid_seq(fid2
), "fid1:"DFID
", fid2:"DFID
"\n",
615 PFID(fid1
), PFID(fid2
));
617 if (fid_is_idif(fid1
) && fid_is_idif(fid2
))
618 return fid_idif_id(fid1
->f_seq
, fid1
->f_oid
, fid1
->f_ver
) -
619 fid_idif_id(fid2
->f_seq
, fid2
->f_oid
, fid2
->f_ver
);
621 return fid_oid(fid1
) - fid_oid(fid2
);
624 #define LUSTRE_SEQ_SRV_NAME "seq_srv"
625 #define LUSTRE_SEQ_CTL_NAME "seq_ctl"
627 /* Range common stuff */
628 static inline void range_cpu_to_le(struct lu_seq_range
*dst
, const struct lu_seq_range
*src
)
630 dst
->lsr_start
= cpu_to_le64(src
->lsr_start
);
631 dst
->lsr_end
= cpu_to_le64(src
->lsr_end
);
632 dst
->lsr_index
= cpu_to_le32(src
->lsr_index
);
633 dst
->lsr_flags
= cpu_to_le32(src
->lsr_flags
);
636 static inline void range_le_to_cpu(struct lu_seq_range
*dst
, const struct lu_seq_range
*src
)
638 dst
->lsr_start
= le64_to_cpu(src
->lsr_start
);
639 dst
->lsr_end
= le64_to_cpu(src
->lsr_end
);
640 dst
->lsr_index
= le32_to_cpu(src
->lsr_index
);
641 dst
->lsr_flags
= le32_to_cpu(src
->lsr_flags
);
644 static inline void range_cpu_to_be(struct lu_seq_range
*dst
, const struct lu_seq_range
*src
)
646 dst
->lsr_start
= cpu_to_be64(src
->lsr_start
);
647 dst
->lsr_end
= cpu_to_be64(src
->lsr_end
);
648 dst
->lsr_index
= cpu_to_be32(src
->lsr_index
);
649 dst
->lsr_flags
= cpu_to_be32(src
->lsr_flags
);
652 static inline void range_be_to_cpu(struct lu_seq_range
*dst
, const struct lu_seq_range
*src
)
654 dst
->lsr_start
= be64_to_cpu(src
->lsr_start
);
655 dst
->lsr_end
= be64_to_cpu(src
->lsr_end
);
656 dst
->lsr_index
= be32_to_cpu(src
->lsr_index
);
657 dst
->lsr_flags
= be32_to_cpu(src
->lsr_flags
);
662 #endif /* __LUSTRE_FID_H */