4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2013, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/include/lustre/lustre_idl.h
38 * Lustre wire protocol definitions.
41 /** \defgroup lustreidl lustreidl
43 * Lustre wire protocol definitions.
45 * ALL structs passing over the wire should be declared here. Structs
46 * that are used in interfaces with userspace should go in lustre_user.h.
48 * All structs being declared here should be built from simple fixed-size
49 * types (__u8, __u16, __u32, __u64) or be built from other types or
50 * structs also declared in this file. Similarly, all flags and magic
51 * values in those structs should also be declared here. This ensures
52 * that the Lustre wire protocol is not influenced by external dependencies.
54 * The only other acceptable items in this file are VERY SIMPLE accessor
55 * functions to avoid callers grubbing inside the structures, and the
56 * prototypes of the swabber functions for each struct. Nothing that
57 * depends on external functions or definitions should be in here.
59 * Structs must be properly aligned to put 64-bit values on an 8-byte
60 * boundary. Any structs being added here must also be added to
61 * utils/wirecheck.c and "make newwiretest" run to regenerate the
62 * utils/wiretest.c sources. This allows us to verify that wire structs
63 * have the proper alignment/size on all architectures.
65 * DO NOT CHANGE any of the structs, flags, values declared here and used
66 * in released Lustre versions. Some structs may have padding fields that
67 * can be used. Some structs might allow addition at the end (verify this
68 * in the code to ensure that new/old clients that see this larger struct
69 * do not fail, otherwise you need to implement protocol compatibility).
71 * We assume all nodes are either little-endian or big-endian, and we
72 * always send messages in the sender's native format. The receiver
73 * detects the message format by checking the 'magic' field of the message
74 * (see lustre_msg_swabbed() below).
76 * Each wire type has corresponding 'lustre_swab_xxxtypexxx()' routines,
77 * implemented either here, inline (trivial implementations) or in
78 * ptlrpc/pack_generic.c. These 'swabbers' convert the type from "other"
79 * endian, in-place in the message buffer.
81 * A swabber takes a single pointer argument. The caller must already have
82 * verified that the length of the message buffer >= sizeof (type).
84 * For variable length types, a second 'lustre_swab_v_xxxtypexxx()' routine
85 * may be defined that swabs just the variable part, after the caller has
86 * verified that the message buffer is large enough.
91 #ifndef _LUSTRE_IDL_H_
92 #define _LUSTRE_IDL_H_
95 #include <libcfs/libcfs.h> /* for LPUX64, etc */
98 /* Defn's shared with user-space. */
99 #include <lustre/lustre_user.h>
101 #include <lustre/lustre_errno.h>
106 /* FOO_REQUEST_PORTAL is for incoming requests on the FOO
107 * FOO_REPLY_PORTAL is for incoming replies on the FOO
108 * FOO_BULK_PORTAL is for incoming bulk on the FOO
111 #define CONNMGR_REQUEST_PORTAL 1
112 #define CONNMGR_REPLY_PORTAL 2
113 //#define OSC_REQUEST_PORTAL 3
114 #define OSC_REPLY_PORTAL 4
115 //#define OSC_BULK_PORTAL 5
116 #define OST_IO_PORTAL 6
117 #define OST_CREATE_PORTAL 7
118 #define OST_BULK_PORTAL 8
119 //#define MDC_REQUEST_PORTAL 9
120 #define MDC_REPLY_PORTAL 10
121 //#define MDC_BULK_PORTAL 11
122 #define MDS_REQUEST_PORTAL 12
123 //#define MDS_REPLY_PORTAL 13
124 #define MDS_BULK_PORTAL 14
125 #define LDLM_CB_REQUEST_PORTAL 15
126 #define LDLM_CB_REPLY_PORTAL 16
127 #define LDLM_CANCEL_REQUEST_PORTAL 17
128 #define LDLM_CANCEL_REPLY_PORTAL 18
129 //#define PTLBD_REQUEST_PORTAL 19
130 //#define PTLBD_REPLY_PORTAL 20
131 //#define PTLBD_BULK_PORTAL 21
132 #define MDS_SETATTR_PORTAL 22
133 #define MDS_READPAGE_PORTAL 23
134 #define OUT_PORTAL 24
135 #define MGC_REPLY_PORTAL 25
136 #define MGS_REQUEST_PORTAL 26
137 #define MGS_REPLY_PORTAL 27
138 #define OST_REQUEST_PORTAL 28
139 #define FLD_REQUEST_PORTAL 29
140 #define SEQ_METADATA_PORTAL 30
141 #define SEQ_DATA_PORTAL 31
142 #define SEQ_CONTROLLER_PORTAL 32
143 #define MGS_BULK_PORTAL 33
144 #define OST_IDX_PORTAL 34
146 /* Portal 63 is reserved for the Cray Inc DVS - nic@cray.com, roe@cray.com, n8851@cray.com */
149 #define PTL_RPC_MSG_REQUEST 4711
150 #define PTL_RPC_MSG_ERR 4712
151 #define PTL_RPC_MSG_REPLY 4713
153 /* DON'T use swabbed values of MAGIC as magic! */
154 #define LUSTRE_MSG_MAGIC_V1 0x0BD00BD0
155 #define LUSTRE_MSG_MAGIC_V2 0x0BD00BD3
157 #define LUSTRE_MSG_MAGIC_V1_SWABBED 0xD00BD00B
158 #define LUSTRE_MSG_MAGIC_V2_SWABBED 0xD30BD00B
160 #define LUSTRE_MSG_MAGIC LUSTRE_MSG_MAGIC_V2
162 #define PTLRPC_MSG_VERSION 0x00000003
163 #define LUSTRE_VERSION_MASK 0xffff0000
164 #define LUSTRE_OBD_VERSION 0x00010000
165 #define LUSTRE_MDS_VERSION 0x00020000
166 #define LUSTRE_OST_VERSION 0x00030000
167 #define LUSTRE_DLM_VERSION 0x00040000
168 #define LUSTRE_LOG_VERSION 0x00050000
169 #define LUSTRE_MGS_VERSION 0x00060000
171 typedef __u32 mdsno_t;
172 typedef __u64 seqno_t;
173 typedef __u64 obd_id;
174 typedef __u64 obd_seq;
175 typedef __s64 obd_time;
176 typedef __u64 obd_size;
177 typedef __u64 obd_off;
178 typedef __u64 obd_blocks;
179 typedef __u64 obd_valid;
180 typedef __u32 obd_blksize;
181 typedef __u32 obd_mode;
182 typedef __u32 obd_uid;
183 typedef __u32 obd_gid;
184 typedef __u32 obd_flag;
185 typedef __u32 obd_count;
188 * Describes a range of sequence, lsr_start is included but lsr_end is
190 * Same structure is used in fld module where lsr_index field holds mdt id
193 struct lu_seq_range {
200 struct lu_seq_range_array {
203 struct lu_seq_range lsra_lsr[0];
206 #define LU_SEQ_RANGE_MDT 0x0
207 #define LU_SEQ_RANGE_OST 0x1
208 #define LU_SEQ_RANGE_ANY 0x3
210 #define LU_SEQ_RANGE_MASK 0x3
212 static inline unsigned fld_range_type(const struct lu_seq_range *range)
214 return range->lsr_flags & LU_SEQ_RANGE_MASK;
217 static inline int fld_range_is_ost(const struct lu_seq_range *range)
219 return fld_range_type(range) == LU_SEQ_RANGE_OST;
222 static inline int fld_range_is_mdt(const struct lu_seq_range *range)
224 return fld_range_type(range) == LU_SEQ_RANGE_MDT;
228 * This all range is only being used when fld client sends fld query request,
229 * but it does not know whether the seq is MDT or OST, so it will send req
230 * with ALL type, which means either seq type gotten from lookup can be
233 static inline unsigned fld_range_is_any(const struct lu_seq_range *range)
235 return fld_range_type(range) == LU_SEQ_RANGE_ANY;
238 static inline void fld_range_set_type(struct lu_seq_range *range,
241 range->lsr_flags |= flags;
244 static inline void fld_range_set_mdt(struct lu_seq_range *range)
246 fld_range_set_type(range, LU_SEQ_RANGE_MDT);
249 static inline void fld_range_set_ost(struct lu_seq_range *range)
251 fld_range_set_type(range, LU_SEQ_RANGE_OST);
254 static inline void fld_range_set_any(struct lu_seq_range *range)
256 fld_range_set_type(range, LU_SEQ_RANGE_ANY);
260 * returns width of given range \a r
263 static inline __u64 range_space(const struct lu_seq_range *range)
265 return range->lsr_end - range->lsr_start;
269 * initialize range to zero
272 static inline void range_init(struct lu_seq_range *range)
274 memset(range, 0, sizeof(*range));
278 * check if given seq id \a s is within given range \a r
281 static inline int range_within(const struct lu_seq_range *range,
284 return s >= range->lsr_start && s < range->lsr_end;
287 static inline int range_is_sane(const struct lu_seq_range *range)
289 return (range->lsr_end >= range->lsr_start);
292 static inline int range_is_zero(const struct lu_seq_range *range)
294 return (range->lsr_start == 0 && range->lsr_end == 0);
297 static inline int range_is_exhausted(const struct lu_seq_range *range)
300 return range_space(range) == 0;
303 /* return 0 if two range have the same location */
304 static inline int range_compare_loc(const struct lu_seq_range *r1,
305 const struct lu_seq_range *r2)
307 return r1->lsr_index != r2->lsr_index ||
308 r1->lsr_flags != r2->lsr_flags;
311 #define DRANGE "[%#16.16"LPF64"x-%#16.16"LPF64"x):%x:%s"
313 #define PRANGE(range) \
314 (range)->lsr_start, \
316 (range)->lsr_index, \
317 fld_range_is_mdt(range) ? "mdt" : "ost"
320 /** \defgroup lu_fid lu_fid
324 * Flags for lustre_mdt_attrs::lma_compat and lustre_mdt_attrs::lma_incompat.
325 * Deprecated since HSM and SOM attributes are now stored in separate on-disk
329 LMAC_HSM = 0x00000001,
330 LMAC_SOM = 0x00000002,
331 LMAC_NOT_IN_OI = 0x00000004, /* the object does NOT need OI mapping */
332 LMAC_FID_ON_OST = 0x00000008, /* For OST-object, its OI mapping is
333 * under /O/<seq>/d<x>. */
337 * Masks for all features that should be supported by a Lustre version to
338 * access a specific file.
339 * This information is stored in lustre_mdt_attrs::lma_incompat.
342 LMAI_RELEASED = 0x00000001, /* file is released */
343 LMAI_AGENT = 0x00000002, /* agent inode */
344 LMAI_REMOTE_PARENT = 0x00000004, /* the parent of the object
345 is on the remote MDT */
347 #define LMA_INCOMPAT_SUPP (LMAI_AGENT | LMAI_REMOTE_PARENT)
349 extern void lustre_lma_swab(struct lustre_mdt_attrs *lma);
350 extern void lustre_lma_init(struct lustre_mdt_attrs *lma,
351 const struct lu_fid *fid,
352 __u32 compat, __u32 incompat);
354 * SOM on-disk attributes stored in a separate xattr.
357 /** Bitfield for supported data in this structure. For future use. */
360 /** Incompat feature list. The supported feature mask is availabe in
361 * SOM_INCOMPAT_SUPP */
364 /** IO Epoch SOM attributes belongs to */
366 /** total file size in objects */
368 /** total fs blocks in objects */
370 /** mds mount id the size is valid for */
373 extern void lustre_som_swab(struct som_attrs *attrs);
375 #define SOM_INCOMPAT_SUPP 0x0
378 * HSM on-disk attributes stored in a separate xattr.
381 /** Bitfield for supported data in this structure. For future use. */
384 /** HSM flags, see hsm_flags enum below */
386 /** backend archive id associated with the file */
388 /** version associated with the last archiving, if any */
391 extern void lustre_hsm_swab(struct hsm_attrs *attrs);
397 /** LASTID file has zero OID */
398 LUSTRE_FID_LASTID_OID = 0UL,
399 /** initial fid id value */
400 LUSTRE_FID_INIT_OID = 1UL
403 /** returns fid object sequence */
404 static inline __u64 fid_seq(const struct lu_fid *fid)
409 /** returns fid object id */
410 static inline __u32 fid_oid(const struct lu_fid *fid)
415 /** returns fid object version */
416 static inline __u32 fid_ver(const struct lu_fid *fid)
421 static inline void fid_zero(struct lu_fid *fid)
423 memset(fid, 0, sizeof(*fid));
426 static inline obd_id fid_ver_oid(const struct lu_fid *fid)
428 return ((__u64)fid_ver(fid) << 32 | fid_oid(fid));
432 * Note that reserved SEQ numbers below 12 will conflict with ldiskfs
433 * inodes in the IGIF namespace, so these reserved SEQ numbers can be
434 * used for other purposes and not risk collisions with existing inodes.
436 * Different FID Format
437 * http://arch.lustre.org/index.php?title=Interoperability_fids_zfs#NEW.0
440 FID_SEQ_OST_MDT0 = 0,
441 FID_SEQ_LLOG = 1, /* unnamed llogs */
443 FID_SEQ_OST_MDT1 = 3,
444 FID_SEQ_OST_MAX = 9, /* Max MDT count before OST_on_FID */
445 FID_SEQ_LLOG_NAME = 10, /* named llogs */
448 FID_SEQ_IGIF_MAX = 0x0ffffffffULL,
449 FID_SEQ_IDIF = 0x100000000ULL,
450 FID_SEQ_IDIF_MAX = 0x1ffffffffULL,
451 /* Normal FID sequence starts from this value, i.e. 1<<33 */
452 FID_SEQ_START = 0x200000000ULL,
453 /* sequence for local pre-defined FIDs listed in local_oid */
454 FID_SEQ_LOCAL_FILE = 0x200000001ULL,
455 FID_SEQ_DOT_LUSTRE = 0x200000002ULL,
456 /* sequence is used for local named objects FIDs generated
457 * by local_object_storage library */
458 FID_SEQ_LOCAL_NAME = 0x200000003ULL,
459 /* Because current FLD will only cache the fid sequence, instead
460 * of oid on the client side, if the FID needs to be exposed to
461 * clients sides, it needs to make sure all of fids under one
462 * sequence will be located in one MDT. */
463 FID_SEQ_SPECIAL = 0x200000004ULL,
464 FID_SEQ_QUOTA = 0x200000005ULL,
465 FID_SEQ_QUOTA_GLB = 0x200000006ULL,
466 FID_SEQ_ROOT = 0x200000007ULL, /* Located on MDT0 */
467 FID_SEQ_LAYOUT_RBTREE = 0x200000008ULL,
468 FID_SEQ_NORMAL = 0x200000400ULL,
469 FID_SEQ_LOV_DEFAULT = 0xffffffffffffffffULL
472 #define OBIF_OID_MAX_BITS 32
473 #define OBIF_MAX_OID (1ULL << OBIF_OID_MAX_BITS)
474 #define OBIF_OID_MASK ((1ULL << OBIF_OID_MAX_BITS) - 1)
475 #define IDIF_OID_MAX_BITS 48
476 #define IDIF_MAX_OID (1ULL << IDIF_OID_MAX_BITS)
477 #define IDIF_OID_MASK ((1ULL << IDIF_OID_MAX_BITS) - 1)
479 /** OID for FID_SEQ_SPECIAL */
481 /* Big Filesystem Lock to serialize rename operations */
482 FID_OID_SPECIAL_BFL = 1UL,
485 /** OID for FID_SEQ_DOT_LUSTRE */
486 enum dot_lustre_oid {
487 FID_OID_DOT_LUSTRE = 1UL,
488 FID_OID_DOT_LUSTRE_OBF = 2UL,
489 FID_OID_DOT_LUSTRE_LPF = 3UL,
492 static inline int fid_seq_is_mdt0(obd_seq seq)
494 return (seq == FID_SEQ_OST_MDT0);
497 static inline int fid_seq_is_mdt(const __u64 seq)
499 return seq == FID_SEQ_OST_MDT0 || seq >= FID_SEQ_NORMAL;
502 static inline int fid_seq_is_echo(obd_seq seq)
504 return (seq == FID_SEQ_ECHO);
507 static inline int fid_is_echo(const struct lu_fid *fid)
509 return fid_seq_is_echo(fid_seq(fid));
512 static inline int fid_seq_is_llog(obd_seq seq)
514 return (seq == FID_SEQ_LLOG);
517 static inline int fid_is_llog(const struct lu_fid *fid)
519 /* file with OID == 0 is not llog but contains last oid */
520 return fid_seq_is_llog(fid_seq(fid)) && fid_oid(fid) > 0;
523 static inline int fid_seq_is_rsvd(const __u64 seq)
525 return (seq > FID_SEQ_OST_MDT0 && seq <= FID_SEQ_RSVD);
528 static inline int fid_seq_is_special(const __u64 seq)
530 return seq == FID_SEQ_SPECIAL;
533 static inline int fid_seq_is_local_file(const __u64 seq)
535 return seq == FID_SEQ_LOCAL_FILE ||
536 seq == FID_SEQ_LOCAL_NAME;
539 static inline int fid_seq_is_root(const __u64 seq)
541 return seq == FID_SEQ_ROOT;
544 static inline int fid_seq_is_dot(const __u64 seq)
546 return seq == FID_SEQ_DOT_LUSTRE;
549 static inline int fid_seq_is_default(const __u64 seq)
551 return seq == FID_SEQ_LOV_DEFAULT;
554 static inline int fid_is_mdt0(const struct lu_fid *fid)
556 return fid_seq_is_mdt0(fid_seq(fid));
559 static inline void lu_root_fid(struct lu_fid *fid)
561 fid->f_seq = FID_SEQ_ROOT;
567 * Check if a fid is igif or not.
568 * \param fid the fid to be tested.
569 * \return true if the fid is a igif; otherwise false.
571 static inline int fid_seq_is_igif(const __u64 seq)
573 return seq >= FID_SEQ_IGIF && seq <= FID_SEQ_IGIF_MAX;
576 static inline int fid_is_igif(const struct lu_fid *fid)
578 return fid_seq_is_igif(fid_seq(fid));
582 * Check if a fid is idif or not.
583 * \param fid the fid to be tested.
584 * \return true if the fid is a idif; otherwise false.
586 static inline int fid_seq_is_idif(const __u64 seq)
588 return seq >= FID_SEQ_IDIF && seq <= FID_SEQ_IDIF_MAX;
591 static inline int fid_is_idif(const struct lu_fid *fid)
593 return fid_seq_is_idif(fid_seq(fid));
596 static inline int fid_is_local_file(const struct lu_fid *fid)
598 return fid_seq_is_local_file(fid_seq(fid));
601 static inline int fid_seq_is_norm(const __u64 seq)
603 return (seq >= FID_SEQ_NORMAL);
606 static inline int fid_is_norm(const struct lu_fid *fid)
608 return fid_seq_is_norm(fid_seq(fid));
611 static inline int fid_is_layout_rbtree(const struct lu_fid *fid)
613 return fid_seq(fid) == FID_SEQ_LAYOUT_RBTREE;
616 /* convert an OST objid into an IDIF FID SEQ number */
617 static inline obd_seq fid_idif_seq(obd_id id, __u32 ost_idx)
619 return FID_SEQ_IDIF | (ost_idx << 16) | ((id >> 32) & 0xffff);
622 /* convert a packed IDIF FID into an OST objid */
623 static inline obd_id fid_idif_id(obd_seq seq, __u32 oid, __u32 ver)
625 return ((__u64)ver << 48) | ((seq & 0xffff) << 32) | oid;
628 static inline __u32 idif_ost_idx(obd_seq seq)
630 return (seq >> 16) & 0xffff;
633 /* extract ost index from IDIF FID */
634 static inline __u32 fid_idif_ost_idx(const struct lu_fid *fid)
636 return idif_ost_idx(fid_seq(fid));
639 /* extract OST sequence (group) from a wire ost_id (id/seq) pair */
640 static inline obd_seq ostid_seq(const struct ost_id *ostid)
642 if (fid_seq_is_mdt0(ostid->oi.oi_seq))
643 return FID_SEQ_OST_MDT0;
645 if (unlikely(fid_seq_is_default(ostid->oi.oi_seq)))
646 return FID_SEQ_LOV_DEFAULT;
648 if (fid_is_idif(&ostid->oi_fid))
649 return FID_SEQ_OST_MDT0;
651 return fid_seq(&ostid->oi_fid);
654 /* extract OST objid from a wire ost_id (id/seq) pair */
655 static inline obd_id ostid_id(const struct ost_id *ostid)
657 if (fid_seq_is_mdt0(ostid->oi.oi_seq))
658 return ostid->oi.oi_id & IDIF_OID_MASK;
660 if (unlikely(fid_seq_is_default(ostid->oi.oi_seq)))
661 return ostid->oi.oi_id;
663 if (fid_is_idif(&ostid->oi_fid))
664 return fid_idif_id(fid_seq(&ostid->oi_fid),
665 fid_oid(&ostid->oi_fid), 0);
667 return fid_oid(&ostid->oi_fid);
670 static inline void ostid_set_seq(struct ost_id *oi, __u64 seq)
672 if (fid_seq_is_mdt0(seq) || fid_seq_is_default(seq)) {
675 oi->oi_fid.f_seq = seq;
676 /* Note: if f_oid + f_ver is zero, we need init it
677 * to be 1, otherwise, ostid_seq will treat this
678 * as old ostid (oi_seq == 0) */
679 if (oi->oi_fid.f_oid == 0 && oi->oi_fid.f_ver == 0)
680 oi->oi_fid.f_oid = LUSTRE_FID_INIT_OID;
684 static inline void ostid_set_seq_mdt0(struct ost_id *oi)
686 ostid_set_seq(oi, FID_SEQ_OST_MDT0);
689 static inline void ostid_set_seq_echo(struct ost_id *oi)
691 ostid_set_seq(oi, FID_SEQ_ECHO);
694 static inline void ostid_set_seq_llog(struct ost_id *oi)
696 ostid_set_seq(oi, FID_SEQ_LLOG);
700 * Note: we need check oi_seq to decide where to set oi_id,
701 * so oi_seq should always be set ahead of oi_id.
703 static inline void ostid_set_id(struct ost_id *oi, __u64 oid)
705 if (fid_seq_is_mdt0(oi->oi.oi_seq)) {
706 if (oid >= IDIF_MAX_OID) {
707 CERROR("Bad "LPU64" to set "DOSTID"\n",
712 } else if (fid_is_idif(&oi->oi_fid)) {
713 if (oid >= IDIF_MAX_OID) {
714 CERROR("Bad "LPU64" to set "DOSTID"\n",
718 oi->oi_fid.f_seq = fid_idif_seq(oid,
719 fid_idif_ost_idx(&oi->oi_fid));
720 oi->oi_fid.f_oid = oid;
721 oi->oi_fid.f_ver = oid >> 48;
723 if (oid > OBIF_MAX_OID) {
724 CERROR("Bad "LPU64" to set "DOSTID"\n",
728 oi->oi_fid.f_oid = oid;
732 static inline int fid_set_id(struct lu_fid *fid, __u64 oid)
734 if (unlikely(fid_seq_is_igif(fid->f_seq))) {
735 CERROR("bad IGIF, "DFID"\n", PFID(fid));
739 if (fid_is_idif(fid)) {
740 if (oid >= IDIF_MAX_OID) {
741 CERROR("Bad "LPU64" to set "DFID"\n",
745 fid->f_seq = fid_idif_seq(oid, fid_idif_ost_idx(fid));
747 fid->f_ver = oid >> 48;
749 if (oid > OBIF_MAX_OID) {
750 CERROR("Bad "LPU64" to set "DFID"\n",
760 * Unpack an OST object id/seq (group) into a FID. This is needed for
761 * converting all obdo, lmm, lsm, etc. 64-bit id/seq pairs into proper
762 * FIDs. Note that if an id/seq is already in FID/IDIF format it will
763 * be passed through unchanged. Only legacy OST objects in "group 0"
764 * will be mapped into the IDIF namespace so that they can fit into the
765 * struct lu_fid fields without loss. For reference see:
766 * http://arch.lustre.org/index.php?title=Interoperability_fids_zfs
768 static inline int ostid_to_fid(struct lu_fid *fid, const struct ost_id *ostid,
771 obd_seq seq = ostid_seq(ostid);
773 if (ost_idx > 0xffff) {
774 CERROR("bad ost_idx, "DOSTID" ost_idx:%u\n", POSTID(ostid),
779 if (fid_seq_is_mdt0(seq)) {
780 obd_id oid = ostid_id(ostid);
782 /* This is a "legacy" (old 1.x/2.early) OST object in "group 0"
783 * that we map into the IDIF namespace. It allows up to 2^48
784 * objects per OST, as this is the object namespace that has
785 * been in production for years. This can handle create rates
786 * of 1M objects/s/OST for 9 years, or combinations thereof. */
787 if (oid >= IDIF_MAX_OID) {
788 CERROR("bad MDT0 id, "DOSTID" ost_idx:%u\n",
789 POSTID(ostid), ost_idx);
792 fid->f_seq = fid_idif_seq(oid, ost_idx);
793 /* truncate to 32 bits by assignment */
795 /* in theory, not currently used */
796 fid->f_ver = oid >> 48;
797 } else if (likely(!fid_seq_is_default(seq)))
798 /* if (fid_seq_is_idif(seq) || fid_seq_is_norm(seq)) */ {
799 /* This is either an IDIF object, which identifies objects across
800 * all OSTs, or a regular FID. The IDIF namespace maps legacy
801 * OST objects into the FID namespace. In both cases, we just
802 * pass the FID through, no conversion needed. */
803 if (ostid->oi_fid.f_ver != 0) {
804 CERROR("bad MDT0 id, "DOSTID" ost_idx:%u\n",
805 POSTID(ostid), ost_idx);
808 *fid = ostid->oi_fid;
814 /* pack any OST FID into an ostid (id/seq) for the wire/disk */
815 static inline int fid_to_ostid(const struct lu_fid *fid, struct ost_id *ostid)
817 if (unlikely(fid_seq_is_igif(fid->f_seq))) {
818 CERROR("bad IGIF, "DFID"\n", PFID(fid));
822 if (fid_is_idif(fid)) {
823 ostid_set_seq_mdt0(ostid);
824 ostid_set_id(ostid, fid_idif_id(fid_seq(fid), fid_oid(fid),
827 ostid->oi_fid = *fid;
833 /* Check whether the fid is for LAST_ID */
834 static inline int fid_is_last_id(const struct lu_fid *fid)
836 return (fid_oid(fid) == 0);
840 * Get inode number from a igif.
841 * \param fid a igif to get inode number from.
842 * \return inode number for the igif.
844 static inline ino_t lu_igif_ino(const struct lu_fid *fid)
849 extern void lustre_swab_ost_id(struct ost_id *oid);
852 * Get inode generation from a igif.
853 * \param fid a igif to get inode generation from.
854 * \return inode generation for the igif.
856 static inline __u32 lu_igif_gen(const struct lu_fid *fid)
862 * Build igif from the inode number/generation.
864 static inline void lu_igif_build(struct lu_fid *fid, __u32 ino, __u32 gen)
872 * Fids are transmitted across network (in the sender byte-ordering),
873 * and stored on disk in big-endian order.
875 static inline void fid_cpu_to_le(struct lu_fid *dst, const struct lu_fid *src)
877 dst->f_seq = cpu_to_le64(fid_seq(src));
878 dst->f_oid = cpu_to_le32(fid_oid(src));
879 dst->f_ver = cpu_to_le32(fid_ver(src));
882 static inline void fid_le_to_cpu(struct lu_fid *dst, const struct lu_fid *src)
884 dst->f_seq = le64_to_cpu(fid_seq(src));
885 dst->f_oid = le32_to_cpu(fid_oid(src));
886 dst->f_ver = le32_to_cpu(fid_ver(src));
889 static inline void fid_cpu_to_be(struct lu_fid *dst, const struct lu_fid *src)
891 dst->f_seq = cpu_to_be64(fid_seq(src));
892 dst->f_oid = cpu_to_be32(fid_oid(src));
893 dst->f_ver = cpu_to_be32(fid_ver(src));
896 static inline void fid_be_to_cpu(struct lu_fid *dst, const struct lu_fid *src)
898 dst->f_seq = be64_to_cpu(fid_seq(src));
899 dst->f_oid = be32_to_cpu(fid_oid(src));
900 dst->f_ver = be32_to_cpu(fid_ver(src));
903 static inline int fid_is_sane(const struct lu_fid *fid)
905 return fid != NULL &&
906 ((fid_seq(fid) >= FID_SEQ_START && fid_ver(fid) == 0) ||
907 fid_is_igif(fid) || fid_is_idif(fid) ||
908 fid_seq_is_rsvd(fid_seq(fid)));
911 static inline int fid_is_zero(const struct lu_fid *fid)
913 return fid_seq(fid) == 0 && fid_oid(fid) == 0;
916 extern void lustre_swab_lu_fid(struct lu_fid *fid);
917 extern void lustre_swab_lu_seq_range(struct lu_seq_range *range);
919 static inline int lu_fid_eq(const struct lu_fid *f0, const struct lu_fid *f1)
921 return memcmp(f0, f1, sizeof *f0) == 0;
924 #define __diff_normalize(val0, val1) \
926 typeof(val0) __val0 = (val0); \
927 typeof(val1) __val1 = (val1); \
929 (__val0 == __val1 ? 0 : __val0 > __val1 ? +1 : -1); \
932 static inline int lu_fid_cmp(const struct lu_fid *f0,
933 const struct lu_fid *f1)
936 __diff_normalize(fid_seq(f0), fid_seq(f1)) ?:
937 __diff_normalize(fid_oid(f0), fid_oid(f1)) ?:
938 __diff_normalize(fid_ver(f0), fid_ver(f1));
941 static inline void ostid_cpu_to_le(const struct ost_id *src_oi,
942 struct ost_id *dst_oi)
944 if (fid_seq_is_mdt0(ostid_seq(src_oi))) {
945 dst_oi->oi.oi_id = cpu_to_le64(src_oi->oi.oi_id);
946 dst_oi->oi.oi_seq = cpu_to_le64(src_oi->oi.oi_seq);
948 fid_cpu_to_le(&dst_oi->oi_fid, &src_oi->oi_fid);
952 static inline void ostid_le_to_cpu(const struct ost_id *src_oi,
953 struct ost_id *dst_oi)
955 if (fid_seq_is_mdt0(ostid_seq(src_oi))) {
956 dst_oi->oi.oi_id = le64_to_cpu(src_oi->oi.oi_id);
957 dst_oi->oi.oi_seq = le64_to_cpu(src_oi->oi.oi_seq);
959 fid_le_to_cpu(&dst_oi->oi_fid, &src_oi->oi_fid);
963 struct lu_orphan_rec {
964 /* The MDT-object's FID referenced by the orphan OST-object */
965 struct lu_fid lor_fid;
970 struct lu_orphan_ent {
971 /* The orphan OST-object's FID */
972 struct lu_fid loe_key;
973 struct lu_orphan_rec loe_rec;
975 void lustre_swab_orphan_ent(struct lu_orphan_ent *ent);
979 /** \defgroup lu_dir lu_dir
983 * Enumeration of possible directory entry attributes.
985 * Attributes follow directory entry header in the order they appear in this
988 enum lu_dirent_attrs {
991 LUDA_64BITHASH = 0x0004,
993 /* The following attrs are used for MDT interanl only,
994 * not visible to client */
996 /* Verify the dirent consistency */
997 LUDA_VERIFY = 0x8000,
998 /* Only check but not repair the dirent inconsistency */
999 LUDA_VERIFY_DRYRUN = 0x4000,
1000 /* The dirent has been repaired, or to be repaired (dryrun). */
1001 LUDA_REPAIR = 0x2000,
1002 /* The system is upgraded, has beed or to be repaired (dryrun). */
1003 LUDA_UPGRADE = 0x1000,
1004 /* Ignore this record, go to next directly. */
1005 LUDA_IGNORE = 0x0800,
1008 #define LU_DIRENT_ATTRS_MASK 0xf800
1011 * Layout of readdir pages, as transmitted on wire.
1014 /** valid if LUDA_FID is set. */
1015 struct lu_fid lde_fid;
1016 /** a unique entry identifier: a hash or an offset. */
1018 /** total record length, including all attributes. */
1022 /** optional variable size attributes following this entry.
1023 * taken from enum lu_dirent_attrs.
1026 /** name is followed by the attributes indicated in ->ldp_attrs, in
1027 * their natural order. After the last attribute, padding bytes are
1028 * added to make ->lde_reclen a multiple of 8.
1034 * Definitions of optional directory entry attributes formats.
1036 * Individual attributes do not have their length encoded in a generic way. It
1037 * is assumed that consumer of an attribute knows its format. This means that
1038 * it is impossible to skip over an unknown attribute, except by skipping over all
1039 * remaining attributes (by using ->lde_reclen), which is not too
1040 * constraining, because new server versions will append new attributes at
1041 * the end of an entry.
1045 * Fid directory attribute: a fid of an object referenced by the entry. This
1046 * will be almost always requested by the client and supplied by the server.
1048 * Aligned to 8 bytes.
1050 /* To have compatibility with 1.8, lets have fid in lu_dirent struct. */
1055 * Aligned to 2 bytes.
1062 __u64 ldp_hash_start;
1066 struct lu_dirent ldp_entries[0];
1069 enum lu_dirpage_flags {
1071 * dirpage contains no entry.
1075 * last entry's lde_hash equals ldp_hash_end.
1077 LDF_COLLIDE = 1 << 1
1080 static inline struct lu_dirent *lu_dirent_start(struct lu_dirpage *dp)
1082 if (le32_to_cpu(dp->ldp_flags) & LDF_EMPTY)
1085 return dp->ldp_entries;
1088 static inline struct lu_dirent *lu_dirent_next(struct lu_dirent *ent)
1090 struct lu_dirent *next;
1092 if (le16_to_cpu(ent->lde_reclen) != 0)
1093 next = ((void *)ent) + le16_to_cpu(ent->lde_reclen);
1100 static inline int lu_dirent_calc_size(int namelen, __u16 attr)
1104 if (attr & LUDA_TYPE) {
1105 const unsigned align = sizeof(struct luda_type) - 1;
1106 size = (sizeof(struct lu_dirent) + namelen + align) & ~align;
1107 size += sizeof(struct luda_type);
1109 size = sizeof(struct lu_dirent) + namelen;
1111 return (size + 7) & ~7;
1114 static inline int lu_dirent_size(struct lu_dirent *ent)
1116 if (le16_to_cpu(ent->lde_reclen) == 0) {
1117 return lu_dirent_calc_size(le16_to_cpu(ent->lde_namelen),
1118 le32_to_cpu(ent->lde_attrs));
1120 return le16_to_cpu(ent->lde_reclen);
1123 #define MDS_DIR_END_OFF 0xfffffffffffffffeULL
1126 * MDS_READPAGE page size
1128 * This is the directory page size packed in MDS_READPAGE RPC.
1129 * It's different than PAGE_CACHE_SIZE because the client needs to
1130 * access the struct lu_dirpage header packed at the beginning of
1131 * the "page" and without this there isn't any way to know find the
1132 * lu_dirpage header is if client and server PAGE_CACHE_SIZE differ.
1134 #define LU_PAGE_SHIFT 12
1135 #define LU_PAGE_SIZE (1UL << LU_PAGE_SHIFT)
1136 #define LU_PAGE_MASK (~(LU_PAGE_SIZE - 1))
1138 #define LU_PAGE_COUNT (1 << (PAGE_CACHE_SHIFT - LU_PAGE_SHIFT))
1142 struct lustre_handle {
1145 #define DEAD_HANDLE_MAGIC 0xdeadbeefcafebabeULL
1147 static inline int lustre_handle_is_used(struct lustre_handle *lh)
1149 return lh->cookie != 0ull;
1152 static inline int lustre_handle_equal(const struct lustre_handle *lh1,
1153 const struct lustre_handle *lh2)
1155 return lh1->cookie == lh2->cookie;
1158 static inline void lustre_handle_copy(struct lustre_handle *tgt,
1159 struct lustre_handle *src)
1161 tgt->cookie = src->cookie;
1164 /* flags for lm_flags */
1165 #define MSGHDR_AT_SUPPORT 0x1
1166 #define MSGHDR_CKSUM_INCOMPAT18 0x2
1168 #define lustre_msg lustre_msg_v2
1169 /* we depend on this structure to be 8-byte aligned */
1170 /* this type is only endian-adjusted in lustre_unpack_msg() */
1171 struct lustre_msg_v2 {
1180 __u32 lm_buflens[0];
1183 /* without gss, ptlrpc_body is put at the first buffer. */
1184 #define PTLRPC_NUM_VERSIONS 4
1185 #define JOBSTATS_JOBID_SIZE 32 /* 32 bytes string */
1186 struct ptlrpc_body_v3 {
1187 struct lustre_handle pb_handle;
1194 __u64 pb_last_committed;
1199 __u32 pb_timeout; /* for req, the deadline, for rep, the service est */
1200 __u32 pb_service_time; /* for rep, actual service time */
1203 /* VBR: pre-versions */
1204 __u64 pb_pre_versions[PTLRPC_NUM_VERSIONS];
1205 /* padding for future needs */
1206 __u64 pb_padding[4];
1207 char pb_jobid[JOBSTATS_JOBID_SIZE];
1209 #define ptlrpc_body ptlrpc_body_v3
1211 struct ptlrpc_body_v2 {
1212 struct lustre_handle pb_handle;
1219 __u64 pb_last_committed;
1224 __u32 pb_timeout; /* for req, the deadline, for rep, the service est */
1225 __u32 pb_service_time; /* for rep, actual service time, also used for
1226 net_latency of req */
1229 /* VBR: pre-versions */
1230 __u64 pb_pre_versions[PTLRPC_NUM_VERSIONS];
1231 /* padding for future needs */
1232 __u64 pb_padding[4];
1235 extern void lustre_swab_ptlrpc_body(struct ptlrpc_body *pb);
1237 /* message body offset for lustre_msg_v2 */
1238 /* ptlrpc body offset in all request/reply messages */
1239 #define MSG_PTLRPC_BODY_OFF 0
1241 /* normal request/reply message record offset */
1242 #define REQ_REC_OFF 1
1243 #define REPLY_REC_OFF 1
1245 /* ldlm request message body offset */
1246 #define DLM_LOCKREQ_OFF 1 /* lockreq offset */
1247 #define DLM_REQ_REC_OFF 2 /* normal dlm request record offset */
1249 /* ldlm intent lock message body offset */
1250 #define DLM_INTENT_IT_OFF 2 /* intent lock it offset */
1251 #define DLM_INTENT_REC_OFF 3 /* intent lock record offset */
1253 /* ldlm reply message body offset */
1254 #define DLM_LOCKREPLY_OFF 1 /* lockrep offset */
1255 #define DLM_REPLY_REC_OFF 2 /* reply record offset */
1257 /** only use in req->rq_{req,rep}_swab_mask */
1258 #define MSG_PTLRPC_HEADER_OFF 31
1260 /* Flags that are operation-specific go in the top 16 bits. */
1261 #define MSG_OP_FLAG_MASK 0xffff0000
1262 #define MSG_OP_FLAG_SHIFT 16
1264 /* Flags that apply to all requests are in the bottom 16 bits */
1265 #define MSG_GEN_FLAG_MASK 0x0000ffff
1266 #define MSG_LAST_REPLAY 0x0001
1267 #define MSG_RESENT 0x0002
1268 #define MSG_REPLAY 0x0004
1269 /* #define MSG_AT_SUPPORT 0x0008
1270 * This was used in early prototypes of adaptive timeouts, and while there
1271 * shouldn't be any users of that code there also isn't a need for using this
1272 * bits. Defer usage until at least 1.10 to avoid potential conflict. */
1273 #define MSG_DELAY_REPLAY 0x0010
1274 #define MSG_VERSION_REPLAY 0x0020
1275 #define MSG_REQ_REPLAY_DONE 0x0040
1276 #define MSG_LOCK_REPLAY_DONE 0x0080
1279 * Flags for all connect opcodes (MDS_CONNECT, OST_CONNECT)
1282 #define MSG_CONNECT_RECOVERING 0x00000001
1283 #define MSG_CONNECT_RECONNECT 0x00000002
1284 #define MSG_CONNECT_REPLAYABLE 0x00000004
1285 //#define MSG_CONNECT_PEER 0x8
1286 #define MSG_CONNECT_LIBCLIENT 0x00000010
1287 #define MSG_CONNECT_INITIAL 0x00000020
1288 #define MSG_CONNECT_ASYNC 0x00000040
1289 #define MSG_CONNECT_NEXT_VER 0x00000080 /* use next version of lustre_msg */
1290 #define MSG_CONNECT_TRANSNO 0x00000100 /* report transno */
1293 #define OBD_CONNECT_RDONLY 0x1ULL /*client has read-only access*/
1294 #define OBD_CONNECT_INDEX 0x2ULL /*connect specific LOV idx */
1295 #define OBD_CONNECT_MDS 0x4ULL /*connect from MDT to OST */
1296 #define OBD_CONNECT_GRANT 0x8ULL /*OSC gets grant at connect */
1297 #define OBD_CONNECT_SRVLOCK 0x10ULL /*server takes locks for cli */
1298 #define OBD_CONNECT_VERSION 0x20ULL /*Lustre versions in ocd */
1299 #define OBD_CONNECT_REQPORTAL 0x40ULL /*Separate non-IO req portal */
1300 #define OBD_CONNECT_ACL 0x80ULL /*access control lists */
1301 #define OBD_CONNECT_XATTR 0x100ULL /*client use extended attr */
1302 #define OBD_CONNECT_CROW 0x200ULL /*MDS+OST create obj on write*/
1303 #define OBD_CONNECT_TRUNCLOCK 0x400ULL /*locks on server for punch */
1304 #define OBD_CONNECT_TRANSNO 0x800ULL /*replay sends init transno */
1305 #define OBD_CONNECT_IBITS 0x1000ULL /*support for inodebits locks*/
1306 #define OBD_CONNECT_JOIN 0x2000ULL /*files can be concatenated.
1307 *We do not support JOIN FILE
1308 *anymore, reserve this flags
1309 *just for preventing such bit
1311 #define OBD_CONNECT_ATTRFID 0x4000ULL /*Server can GetAttr By Fid*/
1312 #define OBD_CONNECT_NODEVOH 0x8000ULL /*No open hndl on specl nodes*/
1313 #define OBD_CONNECT_RMT_CLIENT 0x10000ULL /*Remote client */
1314 #define OBD_CONNECT_RMT_CLIENT_FORCE 0x20000ULL /*Remote client by force */
1315 #define OBD_CONNECT_BRW_SIZE 0x40000ULL /*Max bytes per rpc */
1316 #define OBD_CONNECT_QUOTA64 0x80000ULL /*Not used since 2.4 */
1317 #define OBD_CONNECT_MDS_CAPA 0x100000ULL /*MDS capability */
1318 #define OBD_CONNECT_OSS_CAPA 0x200000ULL /*OSS capability */
1319 #define OBD_CONNECT_CANCELSET 0x400000ULL /*Early batched cancels. */
1320 #define OBD_CONNECT_SOM 0x800000ULL /*Size on MDS */
1321 #define OBD_CONNECT_AT 0x1000000ULL /*client uses AT */
1322 #define OBD_CONNECT_LRU_RESIZE 0x2000000ULL /*LRU resize feature. */
1323 #define OBD_CONNECT_MDS_MDS 0x4000000ULL /*MDS-MDS connection */
1324 #define OBD_CONNECT_REAL 0x8000000ULL /*real connection */
1325 #define OBD_CONNECT_CHANGE_QS 0x10000000ULL /*Not used since 2.4 */
1326 #define OBD_CONNECT_CKSUM 0x20000000ULL /*support several cksum algos*/
1327 #define OBD_CONNECT_FID 0x40000000ULL /*FID is supported by server */
1328 #define OBD_CONNECT_VBR 0x80000000ULL /*version based recovery */
1329 #define OBD_CONNECT_LOV_V3 0x100000000ULL /*client supports LOV v3 EA */
1330 #define OBD_CONNECT_GRANT_SHRINK 0x200000000ULL /* support grant shrink */
1331 #define OBD_CONNECT_SKIP_ORPHAN 0x400000000ULL /* don't reuse orphan objids */
1332 #define OBD_CONNECT_MAX_EASIZE 0x800000000ULL /* preserved for large EA */
1333 #define OBD_CONNECT_FULL20 0x1000000000ULL /* it is 2.0 client */
1334 #define OBD_CONNECT_LAYOUTLOCK 0x2000000000ULL /* client uses layout lock */
1335 #define OBD_CONNECT_64BITHASH 0x4000000000ULL /* client supports 64-bits
1337 #define OBD_CONNECT_MAXBYTES 0x8000000000ULL /* max stripe size */
1338 #define OBD_CONNECT_IMP_RECOV 0x10000000000ULL /* imp recovery support */
1339 #define OBD_CONNECT_JOBSTATS 0x20000000000ULL /* jobid in ptlrpc_body */
1340 #define OBD_CONNECT_UMASK 0x40000000000ULL /* create uses client umask */
1341 #define OBD_CONNECT_EINPROGRESS 0x80000000000ULL /* client handles -EINPROGRESS
1342 * RPC error properly */
1343 #define OBD_CONNECT_GRANT_PARAM 0x100000000000ULL/* extra grant params used for
1344 * finer space reservation */
1345 #define OBD_CONNECT_FLOCK_OWNER 0x200000000000ULL /* for the fixed 1.8
1346 * policy and 2.x server */
1347 #define OBD_CONNECT_LVB_TYPE 0x400000000000ULL /* variable type of LVB */
1348 #define OBD_CONNECT_NANOSEC_TIME 0x800000000000ULL /* nanosecond timestamps */
1349 #define OBD_CONNECT_LIGHTWEIGHT 0x1000000000000ULL/* lightweight connection */
1350 #define OBD_CONNECT_SHORTIO 0x2000000000000ULL/* short io */
1351 #define OBD_CONNECT_PINGLESS 0x4000000000000ULL/* pings not required */
1352 #define OBD_CONNECT_FLOCK_DEAD 0x8000000000000ULL/* improved flock deadlock detection */
1353 #define OBD_CONNECT_DISP_STRIPE 0x10000000000000ULL/* create stripe disposition*/
1354 #define OBD_CONNECT_OPEN_BY_FID 0x20000000000000ULL /* open by fid won't pack
1356 #define OBD_CONNECT_LFSCK 0x40000000000000ULL/* support online LFSCK */
1359 * Please DO NOT add flag values here before first ensuring that this same
1360 * flag value is not in use on some other branch. Please clear any such
1361 * changes with senior engineers before starting to use a new flag. Then,
1362 * submit a small patch against EVERY branch that ONLY adds the new flag,
1363 * updates obd_connect_names[] for lprocfs_rd_connect_flags(), adds the
1364 * flag to check_obd_connect_data(), and updates wiretests accordingly, so it
1365 * can be approved and landed easily to reserve the flag for future use. */
1367 /* The MNE_SWAB flag is overloading the MDS_MDS bit only for the MGS
1368 * connection. It is a temporary bug fix for Imperative Recovery interop
1369 * between 2.2 and 2.3 x86/ppc nodes, and can be removed when interop for
1370 * 2.2 clients/servers is no longer needed. LU-1252/LU-1644. */
1371 #define OBD_CONNECT_MNE_SWAB OBD_CONNECT_MDS_MDS
1373 #define OCD_HAS_FLAG(ocd, flg) \
1374 (!!((ocd)->ocd_connect_flags & OBD_CONNECT_##flg))
1377 #ifdef HAVE_LRU_RESIZE_SUPPORT
1378 #define LRU_RESIZE_CONNECT_FLAG OBD_CONNECT_LRU_RESIZE
1380 #define LRU_RESIZE_CONNECT_FLAG 0
1383 #define MDT_CONNECT_SUPPORTED (OBD_CONNECT_RDONLY | OBD_CONNECT_VERSION | \
1384 OBD_CONNECT_ACL | OBD_CONNECT_XATTR | \
1385 OBD_CONNECT_IBITS | \
1386 OBD_CONNECT_NODEVOH | OBD_CONNECT_ATTRFID | \
1387 OBD_CONNECT_CANCELSET | OBD_CONNECT_AT | \
1388 OBD_CONNECT_RMT_CLIENT | \
1389 OBD_CONNECT_RMT_CLIENT_FORCE | \
1390 OBD_CONNECT_BRW_SIZE | OBD_CONNECT_MDS_CAPA | \
1391 OBD_CONNECT_OSS_CAPA | OBD_CONNECT_MDS_MDS | \
1392 OBD_CONNECT_FID | LRU_RESIZE_CONNECT_FLAG | \
1393 OBD_CONNECT_VBR | OBD_CONNECT_LOV_V3 | \
1394 OBD_CONNECT_SOM | OBD_CONNECT_FULL20 | \
1395 OBD_CONNECT_64BITHASH | OBD_CONNECT_JOBSTATS | \
1396 OBD_CONNECT_EINPROGRESS | \
1397 OBD_CONNECT_LIGHTWEIGHT | OBD_CONNECT_UMASK | \
1398 OBD_CONNECT_LVB_TYPE | OBD_CONNECT_LAYOUTLOCK |\
1399 OBD_CONNECT_PINGLESS | OBD_CONNECT_MAX_EASIZE |\
1400 OBD_CONNECT_FLOCK_DEAD | \
1401 OBD_CONNECT_DISP_STRIPE | OBD_CONNECT_LFSCK)
1403 #define OST_CONNECT_SUPPORTED (OBD_CONNECT_SRVLOCK | OBD_CONNECT_GRANT | \
1404 OBD_CONNECT_REQPORTAL | OBD_CONNECT_VERSION | \
1405 OBD_CONNECT_TRUNCLOCK | OBD_CONNECT_INDEX | \
1406 OBD_CONNECT_BRW_SIZE | OBD_CONNECT_OSS_CAPA | \
1407 OBD_CONNECT_CANCELSET | OBD_CONNECT_AT | \
1408 LRU_RESIZE_CONNECT_FLAG | OBD_CONNECT_CKSUM | \
1409 OBD_CONNECT_RMT_CLIENT | \
1410 OBD_CONNECT_RMT_CLIENT_FORCE | OBD_CONNECT_VBR | \
1411 OBD_CONNECT_MDS | OBD_CONNECT_SKIP_ORPHAN | \
1412 OBD_CONNECT_GRANT_SHRINK | OBD_CONNECT_FULL20 | \
1413 OBD_CONNECT_64BITHASH | OBD_CONNECT_MAXBYTES | \
1414 OBD_CONNECT_MAX_EASIZE | \
1415 OBD_CONNECT_EINPROGRESS | \
1416 OBD_CONNECT_JOBSTATS | \
1417 OBD_CONNECT_LIGHTWEIGHT | OBD_CONNECT_LVB_TYPE|\
1418 OBD_CONNECT_LAYOUTLOCK | OBD_CONNECT_FID | \
1419 OBD_CONNECT_PINGLESS | OBD_CONNECT_LFSCK)
1420 #define ECHO_CONNECT_SUPPORTED (0)
1421 #define MGS_CONNECT_SUPPORTED (OBD_CONNECT_VERSION | OBD_CONNECT_AT | \
1422 OBD_CONNECT_FULL20 | OBD_CONNECT_IMP_RECOV | \
1423 OBD_CONNECT_MNE_SWAB | OBD_CONNECT_PINGLESS)
1425 /* Features required for this version of the client to work with server */
1426 #define CLIENT_CONNECT_MDT_REQD (OBD_CONNECT_IBITS | OBD_CONNECT_FID | \
1429 #define OBD_OCD_VERSION(major,minor,patch,fix) (((major)<<24) + ((minor)<<16) +\
1430 ((patch)<<8) + (fix))
1431 #define OBD_OCD_VERSION_MAJOR(version) ((int)((version)>>24)&255)
1432 #define OBD_OCD_VERSION_MINOR(version) ((int)((version)>>16)&255)
1433 #define OBD_OCD_VERSION_PATCH(version) ((int)((version)>>8)&255)
1434 #define OBD_OCD_VERSION_FIX(version) ((int)(version)&255)
1436 /* This structure is used for both request and reply.
1438 * If we eventually have separate connect data for different types, which we
1439 * almost certainly will, then perhaps we stick a union in here. */
1440 struct obd_connect_data_v1 {
1441 __u64 ocd_connect_flags; /* OBD_CONNECT_* per above */
1442 __u32 ocd_version; /* lustre release version number */
1443 __u32 ocd_grant; /* initial cache grant amount (bytes) */
1444 __u32 ocd_index; /* LOV index to connect to */
1445 __u32 ocd_brw_size; /* Maximum BRW size in bytes, must be 2^n */
1446 __u64 ocd_ibits_known; /* inode bits this client understands */
1447 __u8 ocd_blocksize; /* log2 of the backend filesystem blocksize */
1448 __u8 ocd_inodespace; /* log2 of the per-inode space consumption */
1449 __u16 ocd_grant_extent; /* per-extent grant overhead, in 1K blocks */
1450 __u32 ocd_unused; /* also fix lustre_swab_connect */
1451 __u64 ocd_transno; /* first transno from client to be replayed */
1452 __u32 ocd_group; /* MDS group on OST */
1453 __u32 ocd_cksum_types; /* supported checksum algorithms */
1454 __u32 ocd_max_easize; /* How big LOV EA can be on MDS */
1455 __u32 ocd_instance; /* also fix lustre_swab_connect */
1456 __u64 ocd_maxbytes; /* Maximum stripe size in bytes */
1459 struct obd_connect_data {
1460 __u64 ocd_connect_flags; /* OBD_CONNECT_* per above */
1461 __u32 ocd_version; /* lustre release version number */
1462 __u32 ocd_grant; /* initial cache grant amount (bytes) */
1463 __u32 ocd_index; /* LOV index to connect to */
1464 __u32 ocd_brw_size; /* Maximum BRW size in bytes */
1465 __u64 ocd_ibits_known; /* inode bits this client understands */
1466 __u8 ocd_blocksize; /* log2 of the backend filesystem blocksize */
1467 __u8 ocd_inodespace; /* log2 of the per-inode space consumption */
1468 __u16 ocd_grant_extent; /* per-extent grant overhead, in 1K blocks */
1469 __u32 ocd_unused; /* also fix lustre_swab_connect */
1470 __u64 ocd_transno; /* first transno from client to be replayed */
1471 __u32 ocd_group; /* MDS group on OST */
1472 __u32 ocd_cksum_types; /* supported checksum algorithms */
1473 __u32 ocd_max_easize; /* How big LOV EA can be on MDS */
1474 __u32 ocd_instance; /* instance # of this target */
1475 __u64 ocd_maxbytes; /* Maximum stripe size in bytes */
1476 /* Fields after ocd_maxbytes are only accessible by the receiver
1477 * if the corresponding flag in ocd_connect_flags is set. Accessing
1478 * any field after ocd_maxbytes on the receiver without a valid flag
1479 * may result in out-of-bound memory access and kernel oops. */
1480 __u64 padding1; /* added 2.1.0. also fix lustre_swab_connect */
1481 __u64 padding2; /* added 2.1.0. also fix lustre_swab_connect */
1482 __u64 padding3; /* added 2.1.0. also fix lustre_swab_connect */
1483 __u64 padding4; /* added 2.1.0. also fix lustre_swab_connect */
1484 __u64 padding5; /* added 2.1.0. also fix lustre_swab_connect */
1485 __u64 padding6; /* added 2.1.0. also fix lustre_swab_connect */
1486 __u64 padding7; /* added 2.1.0. also fix lustre_swab_connect */
1487 __u64 padding8; /* added 2.1.0. also fix lustre_swab_connect */
1488 __u64 padding9; /* added 2.1.0. also fix lustre_swab_connect */
1489 __u64 paddingA; /* added 2.1.0. also fix lustre_swab_connect */
1490 __u64 paddingB; /* added 2.1.0. also fix lustre_swab_connect */
1491 __u64 paddingC; /* added 2.1.0. also fix lustre_swab_connect */
1492 __u64 paddingD; /* added 2.1.0. also fix lustre_swab_connect */
1493 __u64 paddingE; /* added 2.1.0. also fix lustre_swab_connect */
1494 __u64 paddingF; /* added 2.1.0. also fix lustre_swab_connect */
1497 * Please DO NOT use any fields here before first ensuring that this same
1498 * field is not in use on some other branch. Please clear any such changes
1499 * with senior engineers before starting to use a new field. Then, submit
1500 * a small patch against EVERY branch that ONLY adds the new field along with
1501 * the matching OBD_CONNECT flag, so that can be approved and landed easily to
1502 * reserve the flag for future use. */
1505 extern void lustre_swab_connect(struct obd_connect_data *ocd);
1508 * Supported checksum algorithms. Up to 32 checksum types are supported.
1509 * (32-bit mask stored in obd_connect_data::ocd_cksum_types)
1510 * Please update DECLARE_CKSUM_NAME/OBD_CKSUM_ALL in obd.h when adding a new
1511 * algorithm and also the OBD_FL_CKSUM* flags.
1514 OBD_CKSUM_CRC32 = 0x00000001,
1515 OBD_CKSUM_ADLER = 0x00000002,
1516 OBD_CKSUM_CRC32C= 0x00000004,
1520 * OST requests: OBDO & OBD request records
1525 OST_REPLY = 0, /* reply ? */
1541 OST_QUOTACHECK = 18,
1543 OST_QUOTA_ADJUST_QUNIT = 20, /* not used since 2.4 */
1546 #define OST_FIRST_OPC OST_REPLY
1549 OBD_FL_INLINEDATA = 0x00000001,
1550 OBD_FL_OBDMDEXISTS = 0x00000002,
1551 OBD_FL_DELORPHAN = 0x00000004, /* if set in o_flags delete orphans */
1552 OBD_FL_NORPC = 0x00000008, /* set in o_flags do in OSC not OST */
1553 OBD_FL_IDONLY = 0x00000010, /* set in o_flags only adjust obj id*/
1554 OBD_FL_RECREATE_OBJS= 0x00000020, /* recreate missing obj */
1555 OBD_FL_DEBUG_CHECK = 0x00000040, /* echo client/server debug check */
1556 OBD_FL_NO_USRQUOTA = 0x00000100, /* the object's owner is over quota */
1557 OBD_FL_NO_GRPQUOTA = 0x00000200, /* the object's group is over quota */
1558 OBD_FL_CREATE_CROW = 0x00000400, /* object should be create on write */
1559 OBD_FL_SRVLOCK = 0x00000800, /* delegate DLM locking to server */
1560 OBD_FL_CKSUM_CRC32 = 0x00001000, /* CRC32 checksum type */
1561 OBD_FL_CKSUM_ADLER = 0x00002000, /* ADLER checksum type */
1562 OBD_FL_CKSUM_CRC32C = 0x00004000, /* CRC32C checksum type */
1563 OBD_FL_CKSUM_RSVD2 = 0x00008000, /* for future cksum types */
1564 OBD_FL_CKSUM_RSVD3 = 0x00010000, /* for future cksum types */
1565 OBD_FL_SHRINK_GRANT = 0x00020000, /* object shrink the grant */
1566 OBD_FL_MMAP = 0x00040000, /* object is mmapped on the client.
1567 * XXX: obsoleted - reserved for old
1568 * clients prior than 2.2 */
1569 OBD_FL_RECOV_RESEND = 0x00080000, /* recoverable resent */
1570 OBD_FL_NOSPC_BLK = 0x00100000, /* no more block space on OST */
1571 OBD_FL_FLUSH = 0x00200000, /* flush pages on the OST */
1572 OBD_FL_SHORT_IO = 0x00400000, /* short io request */
1574 /* Note that while these checksum values are currently separate bits,
1575 * in 2.x we can actually allow all values from 1-31 if we wanted. */
1576 OBD_FL_CKSUM_ALL = OBD_FL_CKSUM_CRC32 | OBD_FL_CKSUM_ADLER |
1577 OBD_FL_CKSUM_CRC32C,
1579 /* mask for local-only flag, which won't be sent over network */
1580 OBD_FL_LOCAL_MASK = 0xF0000000,
1583 #define LOV_MAGIC_V1 0x0BD10BD0
1584 #define LOV_MAGIC LOV_MAGIC_V1
1585 #define LOV_MAGIC_JOIN_V1 0x0BD20BD0
1586 #define LOV_MAGIC_V3 0x0BD30BD0
1589 * magic for fully defined striping
1590 * the idea is that we should have different magics for striping "hints"
1591 * (struct lov_user_md_v[13]) and defined ready-to-use striping (struct
1592 * lov_mds_md_v[13]). at the moment the magics are used in wire protocol,
1593 * we can't just change it w/o long way preparation, but we still need a
1594 * mechanism to allow LOD to differentiate hint versus ready striping.
1595 * so, at the moment we do a trick: MDT knows what to expect from request
1596 * depending on the case (replay uses ready striping, non-replay req uses
1597 * hints), so MDT replaces magic with appropriate one and now LOD can
1598 * easily understand what's inside -bzzz
1600 #define LOV_MAGIC_V1_DEF 0x0CD10BD0
1601 #define LOV_MAGIC_V3_DEF 0x0CD30BD0
1603 #define LOV_PATTERN_RAID0 0x001 /* stripes are used round-robin */
1604 #define LOV_PATTERN_RAID1 0x002 /* stripes are mirrors of each other */
1605 #define LOV_PATTERN_FIRST 0x100 /* first stripe is not in round-robin */
1606 #define LOV_PATTERN_CMOBD 0x200
1608 #define LOV_PATTERN_F_MASK 0xffff0000
1609 #define LOV_PATTERN_F_RELEASED 0x80000000 /* HSM released file */
1611 #define lov_pattern(pattern) (pattern & ~LOV_PATTERN_F_MASK)
1612 #define lov_pattern_flags(pattern) (pattern & LOV_PATTERN_F_MASK)
1614 #define lov_ost_data lov_ost_data_v1
1615 struct lov_ost_data_v1 { /* per-stripe data structure (little-endian)*/
1616 struct ost_id l_ost_oi; /* OST object ID */
1617 __u32 l_ost_gen; /* generation of this l_ost_idx */
1618 __u32 l_ost_idx; /* OST index in LOV (lov_tgt_desc->tgts) */
1621 #define lov_mds_md lov_mds_md_v1
1622 struct lov_mds_md_v1 { /* LOV EA mds/wire data (little-endian) */
1623 __u32 lmm_magic; /* magic number = LOV_MAGIC_V1 */
1624 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
1625 struct ost_id lmm_oi; /* LOV object ID */
1626 __u32 lmm_stripe_size; /* size of stripe in bytes */
1627 /* lmm_stripe_count used to be __u32 */
1628 __u16 lmm_stripe_count; /* num stripes in use for this object */
1629 __u16 lmm_layout_gen; /* layout generation number */
1630 struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */
1634 * Sigh, because pre-2.4 uses
1635 * struct lov_mds_md_v1 {
1637 * __u64 lmm_object_id;
1638 * __u64 lmm_object_seq;
1641 * to identify the LOV(MDT) object, and lmm_object_seq will
1642 * be normal_fid, which make it hard to combine these conversion
1643 * to ostid_to FID. so we will do lmm_oi/fid conversion separately
1645 * We can tell the lmm_oi by this way,
1646 * 1.8: lmm_object_id = {inode}, lmm_object_gr = 0
1647 * 2.1: lmm_object_id = {oid < 128k}, lmm_object_seq = FID_SEQ_NORMAL
1648 * 2.4: lmm_oi.f_seq = FID_SEQ_NORMAL, lmm_oi.f_oid = {oid < 128k},
1651 * But currently lmm_oi/lsm_oi does not have any "real" usages,
1652 * except for printing some information, and the user can always
1653 * get the real FID from LMA, besides this multiple case check might
1654 * make swab more complicate. So we will keep using id/seq for lmm_oi.
1657 static inline void fid_to_lmm_oi(const struct lu_fid *fid,
1660 oi->oi.oi_id = fid_oid(fid);
1661 oi->oi.oi_seq = fid_seq(fid);
1664 static inline void lmm_oi_set_seq(struct ost_id *oi, __u64 seq)
1666 oi->oi.oi_seq = seq;
1669 static inline void lmm_oi_set_id(struct ost_id *oi, __u64 oid)
1674 static inline __u64 lmm_oi_id(struct ost_id *oi)
1676 return oi->oi.oi_id;
1679 static inline __u64 lmm_oi_seq(struct ost_id *oi)
1681 return oi->oi.oi_seq;
1684 static inline void lmm_oi_le_to_cpu(struct ost_id *dst_oi,
1685 struct ost_id *src_oi)
1687 dst_oi->oi.oi_id = le64_to_cpu(src_oi->oi.oi_id);
1688 dst_oi->oi.oi_seq = le64_to_cpu(src_oi->oi.oi_seq);
1691 static inline void lmm_oi_cpu_to_le(struct ost_id *dst_oi,
1692 struct ost_id *src_oi)
1694 dst_oi->oi.oi_id = cpu_to_le64(src_oi->oi.oi_id);
1695 dst_oi->oi.oi_seq = cpu_to_le64(src_oi->oi.oi_seq);
1698 /* extern void lustre_swab_lov_mds_md(struct lov_mds_md *llm); */
1700 #define MAX_MD_SIZE (sizeof(struct lov_mds_md) + 4 * sizeof(struct lov_ost_data))
1701 #define MIN_MD_SIZE (sizeof(struct lov_mds_md) + 1 * sizeof(struct lov_ost_data))
1703 #define XATTR_NAME_ACL_ACCESS "system.posix_acl_access"
1704 #define XATTR_NAME_ACL_DEFAULT "system.posix_acl_default"
1705 #define XATTR_USER_PREFIX "user."
1706 #define XATTR_TRUSTED_PREFIX "trusted."
1707 #define XATTR_SECURITY_PREFIX "security."
1708 #define XATTR_LUSTRE_PREFIX "lustre."
1710 #define XATTR_NAME_LOV "trusted.lov"
1711 #define XATTR_NAME_LMA "trusted.lma"
1712 #define XATTR_NAME_LMV "trusted.lmv"
1713 #define XATTR_NAME_DEFAULT_LMV "trusted.dmv"
1714 #define XATTR_NAME_LINK "trusted.link"
1715 #define XATTR_NAME_FID "trusted.fid"
1716 #define XATTR_NAME_VERSION "trusted.version"
1717 #define XATTR_NAME_SOM "trusted.som"
1718 #define XATTR_NAME_HSM "trusted.hsm"
1719 #define XATTR_NAME_LFSCK_NAMESPACE "trusted.lfsck_namespace"
1721 struct lov_mds_md_v3 { /* LOV EA mds/wire data (little-endian) */
1722 __u32 lmm_magic; /* magic number = LOV_MAGIC_V3 */
1723 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
1724 struct ost_id lmm_oi; /* LOV object ID */
1725 __u32 lmm_stripe_size; /* size of stripe in bytes */
1726 /* lmm_stripe_count used to be __u32 */
1727 __u16 lmm_stripe_count; /* num stripes in use for this object */
1728 __u16 lmm_layout_gen; /* layout generation number */
1729 char lmm_pool_name[LOV_MAXPOOLNAME]; /* must be 32bit aligned */
1730 struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */
1733 static inline __u32 lov_mds_md_size(__u16 stripes, __u32 lmm_magic)
1735 if (lmm_magic == LOV_MAGIC_V3)
1736 return sizeof(struct lov_mds_md_v3) +
1737 stripes * sizeof(struct lov_ost_data_v1);
1739 return sizeof(struct lov_mds_md_v1) +
1740 stripes * sizeof(struct lov_ost_data_v1);
1744 #define OBD_MD_FLID (0x00000001ULL) /* object ID */
1745 #define OBD_MD_FLATIME (0x00000002ULL) /* access time */
1746 #define OBD_MD_FLMTIME (0x00000004ULL) /* data modification time */
1747 #define OBD_MD_FLCTIME (0x00000008ULL) /* change time */
1748 #define OBD_MD_FLSIZE (0x00000010ULL) /* size */
1749 #define OBD_MD_FLBLOCKS (0x00000020ULL) /* allocated blocks count */
1750 #define OBD_MD_FLBLKSZ (0x00000040ULL) /* block size */
1751 #define OBD_MD_FLMODE (0x00000080ULL) /* access bits (mode & ~S_IFMT) */
1752 #define OBD_MD_FLTYPE (0x00000100ULL) /* object type (mode & S_IFMT) */
1753 #define OBD_MD_FLUID (0x00000200ULL) /* user ID */
1754 #define OBD_MD_FLGID (0x00000400ULL) /* group ID */
1755 #define OBD_MD_FLFLAGS (0x00000800ULL) /* flags word */
1756 #define OBD_MD_FLNLINK (0x00002000ULL) /* link count */
1757 #define OBD_MD_FLGENER (0x00004000ULL) /* generation number */
1758 /*#define OBD_MD_FLINLINE (0x00008000ULL) inline data. used until 1.6.5 */
1759 #define OBD_MD_FLRDEV (0x00010000ULL) /* device number */
1760 #define OBD_MD_FLEASIZE (0x00020000ULL) /* extended attribute data */
1761 #define OBD_MD_LINKNAME (0x00040000ULL) /* symbolic link target */
1762 #define OBD_MD_FLHANDLE (0x00080000ULL) /* file/lock handle */
1763 #define OBD_MD_FLCKSUM (0x00100000ULL) /* bulk data checksum */
1764 #define OBD_MD_FLQOS (0x00200000ULL) /* quality of service stats */
1765 /*#define OBD_MD_FLOSCOPQ (0x00400000ULL) osc opaque data, never used */
1766 #define OBD_MD_FLCOOKIE (0x00800000ULL) /* log cancellation cookie */
1767 #define OBD_MD_FLGROUP (0x01000000ULL) /* group */
1768 #define OBD_MD_FLFID (0x02000000ULL) /* ->ost write inline fid */
1769 #define OBD_MD_FLEPOCH (0x04000000ULL) /* ->ost write with ioepoch */
1770 /* ->mds if epoch opens or closes */
1771 #define OBD_MD_FLGRANT (0x08000000ULL) /* ost preallocation space grant */
1772 #define OBD_MD_FLDIREA (0x10000000ULL) /* dir's extended attribute data */
1773 #define OBD_MD_FLUSRQUOTA (0x20000000ULL) /* over quota flags sent from ost */
1774 #define OBD_MD_FLGRPQUOTA (0x40000000ULL) /* over quota flags sent from ost */
1775 #define OBD_MD_FLMODEASIZE (0x80000000ULL) /* EA size will be changed */
1777 #define OBD_MD_MDS (0x0000000100000000ULL) /* where an inode lives on */
1778 #define OBD_MD_REINT (0x0000000200000000ULL) /* reintegrate oa */
1779 #define OBD_MD_MEA (0x0000000400000000ULL) /* CMD split EA */
1780 #define OBD_MD_TSTATE (0x0000000800000000ULL) /* transient state field */
1782 #define OBD_MD_FLXATTR (0x0000001000000000ULL) /* xattr */
1783 #define OBD_MD_FLXATTRLS (0x0000002000000000ULL) /* xattr list */
1784 #define OBD_MD_FLXATTRRM (0x0000004000000000ULL) /* xattr remove */
1785 #define OBD_MD_FLACL (0x0000008000000000ULL) /* ACL */
1786 #define OBD_MD_FLRMTPERM (0x0000010000000000ULL) /* remote permission */
1787 #define OBD_MD_FLMDSCAPA (0x0000020000000000ULL) /* MDS capability */
1788 #define OBD_MD_FLOSSCAPA (0x0000040000000000ULL) /* OSS capability */
1789 #define OBD_MD_FLCKSPLIT (0x0000080000000000ULL) /* Check split on server */
1790 #define OBD_MD_FLCROSSREF (0x0000100000000000ULL) /* Cross-ref case */
1791 #define OBD_MD_FLGETATTRLOCK (0x0000200000000000ULL) /* Get IOEpoch attributes
1792 * under lock; for xattr
1793 * requests means the
1794 * client holds the lock */
1795 #define OBD_MD_FLOBJCOUNT (0x0000400000000000ULL) /* for multiple destroy */
1797 #define OBD_MD_FLRMTLSETFACL (0x0001000000000000ULL) /* lfs lsetfacl case */
1798 #define OBD_MD_FLRMTLGETFACL (0x0002000000000000ULL) /* lfs lgetfacl case */
1799 #define OBD_MD_FLRMTRSETFACL (0x0004000000000000ULL) /* lfs rsetfacl case */
1800 #define OBD_MD_FLRMTRGETFACL (0x0008000000000000ULL) /* lfs rgetfacl case */
1802 #define OBD_MD_FLDATAVERSION (0x0010000000000000ULL) /* iversion sum */
1803 #define OBD_MD_FLRELEASED (0x0020000000000000ULL) /* file released */
1805 #define OBD_MD_DEFAULT_MEA (0x0040000000000000ULL) /* default MEA */
1807 #define OBD_MD_FLGETATTR (OBD_MD_FLID | OBD_MD_FLATIME | OBD_MD_FLMTIME | \
1808 OBD_MD_FLCTIME | OBD_MD_FLSIZE | OBD_MD_FLBLKSZ | \
1809 OBD_MD_FLMODE | OBD_MD_FLTYPE | OBD_MD_FLUID | \
1810 OBD_MD_FLGID | OBD_MD_FLFLAGS | OBD_MD_FLNLINK | \
1811 OBD_MD_FLGENER | OBD_MD_FLRDEV | OBD_MD_FLGROUP)
1813 #define OBD_MD_FLXATTRALL (OBD_MD_FLXATTR | OBD_MD_FLXATTRLS)
1815 /* don't forget obdo_fid which is way down at the bottom so it can
1816 * come after the definition of llog_cookie */
1820 HSS_CLEARMASK = 0x02,
1821 HSS_ARCHIVE_ID = 0x04,
1824 struct hsm_state_set {
1826 __u32 hss_archive_id;
1828 __u64 hss_clearmask;
1831 extern void lustre_swab_hsm_user_state(struct hsm_user_state *hus);
1832 extern void lustre_swab_hsm_state_set(struct hsm_state_set *hss);
1834 extern void lustre_swab_obd_statfs (struct obd_statfs *os);
1836 /* ost_body.data values for OST_BRW */
1838 #define OBD_BRW_READ 0x01
1839 #define OBD_BRW_WRITE 0x02
1840 #define OBD_BRW_RWMASK (OBD_BRW_READ | OBD_BRW_WRITE)
1841 #define OBD_BRW_SYNC 0x08 /* this page is a part of synchronous
1842 * transfer and is not accounted in
1844 #define OBD_BRW_CHECK 0x10
1845 #define OBD_BRW_FROM_GRANT 0x20 /* the osc manages this under llite */
1846 #define OBD_BRW_GRANTED 0x40 /* the ost manages this */
1847 #define OBD_BRW_NOCACHE 0x80 /* this page is a part of non-cached IO */
1848 #define OBD_BRW_NOQUOTA 0x100
1849 #define OBD_BRW_SRVLOCK 0x200 /* Client holds no lock over this page */
1850 #define OBD_BRW_ASYNC 0x400 /* Server may delay commit to disk */
1851 #define OBD_BRW_MEMALLOC 0x800 /* Client runs in the "kswapd" context */
1852 #define OBD_BRW_OVER_USRQUOTA 0x1000 /* Running out of user quota */
1853 #define OBD_BRW_OVER_GRPQUOTA 0x2000 /* Running out of group quota */
1854 #define OBD_BRW_SOFT_SYNC 0x4000 /* This flag notifies the server
1855 * that the client is running low on
1856 * space for unstable pages; asking
1857 * it to sync quickly */
1859 #define OBD_OBJECT_EOF 0xffffffffffffffffULL
1861 #define OST_MIN_PRECREATE 32
1862 #define OST_MAX_PRECREATE 20000
1865 struct ost_id ioo_oid; /* object ID, if multi-obj BRW */
1866 __u32 ioo_max_brw; /* low 16 bits were o_mode before 2.4,
1867 * now (PTLRPC_BULK_OPS_COUNT - 1) in
1868 * high 16 bits in 2.4 and later */
1869 __u32 ioo_bufcnt; /* number of niobufs for this object */
1872 #define IOOBJ_MAX_BRW_BITS 16
1873 #define IOOBJ_TYPE_MASK ((1U << IOOBJ_MAX_BRW_BITS) - 1)
1874 #define ioobj_max_brw_get(ioo) (((ioo)->ioo_max_brw >> IOOBJ_MAX_BRW_BITS) + 1)
1875 #define ioobj_max_brw_set(ioo, num) \
1876 do { (ioo)->ioo_max_brw = ((num) - 1) << IOOBJ_MAX_BRW_BITS; } while (0)
1878 extern void lustre_swab_obd_ioobj (struct obd_ioobj *ioo);
1880 /* multiple of 8 bytes => can array */
1881 struct niobuf_remote {
1887 extern void lustre_swab_niobuf_remote (struct niobuf_remote *nbr);
1889 /* lock value block communicated between the filter and llite */
1891 /* OST_LVB_ERR_INIT is needed because the return code in rc is
1892 * negative, i.e. because ((MASK + rc) & MASK) != MASK. */
1893 #define OST_LVB_ERR_INIT 0xffbadbad80000000ULL
1894 #define OST_LVB_ERR_MASK 0xffbadbad00000000ULL
1895 #define OST_LVB_IS_ERR(blocks) \
1896 ((blocks & OST_LVB_ERR_MASK) == OST_LVB_ERR_MASK)
1897 #define OST_LVB_SET_ERR(blocks, rc) \
1898 do { blocks = OST_LVB_ERR_INIT + rc; } while (0)
1899 #define OST_LVB_GET_ERR(blocks) (int)(blocks - OST_LVB_ERR_INIT)
1909 extern void lustre_swab_ost_lvb_v1(struct ost_lvb_v1 *lvb);
1923 extern void lustre_swab_ost_lvb(struct ost_lvb *lvb);
1926 * lquota data structures
1929 #ifndef QUOTABLOCK_BITS
1930 #define QUOTABLOCK_BITS 10
1933 #ifndef QUOTABLOCK_SIZE
1934 #define QUOTABLOCK_SIZE (1 << QUOTABLOCK_BITS)
1938 #define toqb(x) (((x) + QUOTABLOCK_SIZE - 1) >> QUOTABLOCK_BITS)
1941 /* The lquota_id structure is an union of all the possible identifier types that
1942 * can be used with quota, this includes:
1945 * - a FID which can be used for per-directory quota in the future */
1947 struct lu_fid qid_fid; /* FID for per-directory quota */
1948 __u64 qid_uid; /* user identifier */
1949 __u64 qid_gid; /* group identifier */
1952 /* quotactl management */
1953 struct obd_quotactl {
1955 __u32 qc_type; /* see Q_* flag below */
1958 struct obd_dqinfo qc_dqinfo;
1959 struct obd_dqblk qc_dqblk;
1962 extern void lustre_swab_obd_quotactl(struct obd_quotactl *q);
1964 #define Q_QUOTACHECK 0x800100 /* deprecated as of 2.4 */
1965 #define Q_INITQUOTA 0x800101 /* deprecated as of 2.4 */
1966 #define Q_GETOINFO 0x800102 /* get obd quota info */
1967 #define Q_GETOQUOTA 0x800103 /* get obd quotas */
1968 #define Q_FINVALIDATE 0x800104 /* deprecated as of 2.4 */
1970 #define Q_COPY(out, in, member) (out)->member = (in)->member
1972 #define QCTL_COPY(out, in) \
1974 Q_COPY(out, in, qc_cmd); \
1975 Q_COPY(out, in, qc_type); \
1976 Q_COPY(out, in, qc_id); \
1977 Q_COPY(out, in, qc_stat); \
1978 Q_COPY(out, in, qc_dqinfo); \
1979 Q_COPY(out, in, qc_dqblk); \
1982 /* Body of quota request used for quota acquire/release RPCs between quota
1983 * master (aka QMT) and slaves (ak QSD). */
1985 struct lu_fid qb_fid; /* FID of global index packing the pool ID
1986 * and type (data or metadata) as well as
1987 * the quota type (user or group). */
1988 union lquota_id qb_id; /* uid or gid or directory FID */
1989 __u32 qb_flags; /* see below */
1991 __u64 qb_count; /* acquire/release count (kbytes/inodes) */
1992 __u64 qb_usage; /* current slave usage (kbytes/inodes) */
1993 __u64 qb_slv_ver; /* slave index file version */
1994 struct lustre_handle qb_lockh; /* per-ID lock handle */
1995 struct lustre_handle qb_glb_lockh; /* global lock handle */
1996 __u64 qb_padding1[4];
1999 /* When the quota_body is used in the reply of quota global intent
2000 * lock (IT_QUOTA_CONN) reply, qb_fid contains slave index file FID. */
2001 #define qb_slv_fid qb_fid
2002 /* qb_usage is the current qunit (in kbytes/inodes) when quota_body is used in
2004 #define qb_qunit qb_usage
2006 #define QUOTA_DQACQ_FL_ACQ 0x1 /* acquire quota */
2007 #define QUOTA_DQACQ_FL_PREACQ 0x2 /* pre-acquire */
2008 #define QUOTA_DQACQ_FL_REL 0x4 /* release quota */
2009 #define QUOTA_DQACQ_FL_REPORT 0x8 /* report usage */
2011 extern void lustre_swab_quota_body(struct quota_body *b);
2013 /* Quota types currently supported */
2015 LQUOTA_TYPE_USR = 0x00, /* maps to USRQUOTA */
2016 LQUOTA_TYPE_GRP = 0x01, /* maps to GRPQUOTA */
2020 /* There are 2 different resource types on which a quota limit can be enforced:
2021 * - inodes on the MDTs
2022 * - blocks on the OSTs */
2024 LQUOTA_RES_MD = 0x01, /* skip 0 to avoid null oid in FID */
2025 LQUOTA_RES_DT = 0x02,
2027 LQUOTA_FIRST_RES = LQUOTA_RES_MD
2029 #define LQUOTA_NR_RES (LQUOTA_LAST_RES - LQUOTA_FIRST_RES + 1)
2032 * Space accounting support
2033 * Format of an accounting record, providing disk usage information for a given
2036 struct lquota_acct_rec { /* 16 bytes */
2037 __u64 bspace; /* current space in use */
2038 __u64 ispace; /* current # inodes in use */
2042 * Global quota index support
2043 * Format of a global record, providing global quota settings for a given quota
2046 struct lquota_glb_rec { /* 32 bytes */
2047 __u64 qbr_hardlimit; /* quota hard limit, in #inodes or kbytes */
2048 __u64 qbr_softlimit; /* quota soft limit, in #inodes or kbytes */
2049 __u64 qbr_time; /* grace time, in seconds */
2050 __u64 qbr_granted; /* how much is granted to slaves, in #inodes or
2055 * Slave index support
2056 * Format of a slave record, recording how much space is granted to a given
2059 struct lquota_slv_rec { /* 8 bytes */
2060 __u64 qsr_granted; /* space granted to the slave for the key=ID,
2061 * in #inodes or kbytes */
2064 /* Data structures associated with the quota locks */
2066 /* Glimpse descriptor used for the index & per-ID quota locks */
2067 struct ldlm_gl_lquota_desc {
2068 union lquota_id gl_id; /* quota ID subject to the glimpse */
2069 __u64 gl_flags; /* see LQUOTA_FL* below */
2070 __u64 gl_ver; /* new index version */
2071 __u64 gl_hardlimit; /* new hardlimit or qunit value */
2072 __u64 gl_softlimit; /* new softlimit */
2076 #define gl_qunit gl_hardlimit /* current qunit value used when
2077 * glimpsing per-ID quota locks */
2079 /* quota glimpse flags */
2080 #define LQUOTA_FL_EDQUOT 0x1 /* user/group out of quota space on QMT */
2082 /* LVB used with quota (global and per-ID) locks */
2084 __u64 lvb_flags; /* see LQUOTA_FL* above */
2085 __u64 lvb_id_may_rel; /* space that might be released later */
2086 __u64 lvb_id_rel; /* space released by the slave for this ID */
2087 __u64 lvb_id_qunit; /* current qunit value */
2091 extern void lustre_swab_lquota_lvb(struct lquota_lvb *lvb);
2093 /* LVB used with global quota lock */
2094 #define lvb_glb_ver lvb_id_may_rel /* current version of the global index */
2102 #define QUOTA_FIRST_OPC QUOTA_DQACQ
2111 MDS_GETATTR_NAME = 34,
2116 MDS_DISCONNECT = 39,
2122 MDS_DONE_WRITING = 45,
2124 MDS_QUOTACHECK = 47,
2127 MDS_SETXATTR = 50, /* obsolete, now it's MDS_REINT op */
2131 MDS_HSM_STATE_GET = 54,
2132 MDS_HSM_STATE_SET = 55,
2133 MDS_HSM_ACTION = 56,
2134 MDS_HSM_PROGRESS = 57,
2135 MDS_HSM_REQUEST = 58,
2136 MDS_HSM_CT_REGISTER = 59,
2137 MDS_HSM_CT_UNREGISTER = 60,
2138 MDS_SWAP_LAYOUTS = 61,
2142 #define MDS_FIRST_OPC MDS_GETATTR
2145 /* opcodes for object update */
2151 #define OUT_UPDATE_FIRST_OPC OUT_UPDATE
2168 } mds_reint_t, mdt_reint_t;
2170 extern void lustre_swab_generic_32s (__u32 *val);
2172 /* the disposition of the intent outlines what was executed */
2173 #define DISP_IT_EXECD 0x00000001
2174 #define DISP_LOOKUP_EXECD 0x00000002
2175 #define DISP_LOOKUP_NEG 0x00000004
2176 #define DISP_LOOKUP_POS 0x00000008
2177 #define DISP_OPEN_CREATE 0x00000010
2178 #define DISP_OPEN_OPEN 0x00000020
2179 #define DISP_ENQ_COMPLETE 0x00400000 /* obsolete and unused */
2180 #define DISP_ENQ_OPEN_REF 0x00800000
2181 #define DISP_ENQ_CREATE_REF 0x01000000
2182 #define DISP_OPEN_LOCK 0x02000000
2183 #define DISP_OPEN_LEASE 0x04000000
2184 #define DISP_OPEN_STRIPE 0x08000000
2186 /* INODE LOCK PARTS */
2187 #define MDS_INODELOCK_LOOKUP 0x000001 /* For namespace, dentry etc, and also
2188 * was used to protect permission (mode,
2189 * owner, group etc) before 2.4. */
2190 #define MDS_INODELOCK_UPDATE 0x000002 /* size, links, timestamps */
2191 #define MDS_INODELOCK_OPEN 0x000004 /* For opened files */
2192 #define MDS_INODELOCK_LAYOUT 0x000008 /* for layout */
2194 /* The PERM bit is added int 2.4, and it is used to protect permission(mode,
2195 * owner, group, acl etc), so to separate the permission from LOOKUP lock.
2196 * Because for remote directories(in DNE), these locks will be granted by
2197 * different MDTs(different ldlm namespace).
2199 * For local directory, MDT will always grant UPDATE_LOCK|PERM_LOCK together.
2200 * For Remote directory, the master MDT, where the remote directory is, will
2201 * grant UPDATE_LOCK|PERM_LOCK, and the remote MDT, where the name entry is,
2202 * will grant LOOKUP_LOCK. */
2203 #define MDS_INODELOCK_PERM 0x000010
2204 #define MDS_INODELOCK_XATTR 0x000020 /* extended attributes */
2206 #define MDS_INODELOCK_MAXSHIFT 5
2207 /* This FULL lock is useful to take on unlink sort of operations */
2208 #define MDS_INODELOCK_FULL ((1<<(MDS_INODELOCK_MAXSHIFT+1))-1)
2210 extern void lustre_swab_ll_fid (struct ll_fid *fid);
2212 /* NOTE: until Lustre 1.8.7/2.1.1 the fid_ver() was packed into name[2],
2213 * but was moved into name[1] along with the OID to avoid consuming the
2214 * name[2,3] fields that need to be used for the quota id (also a FID). */
2216 LUSTRE_RES_ID_SEQ_OFF = 0,
2217 LUSTRE_RES_ID_VER_OID_OFF = 1,
2218 LUSTRE_RES_ID_WAS_VER_OFF = 2, /* see note above */
2219 LUSTRE_RES_ID_QUOTA_SEQ_OFF = 2,
2220 LUSTRE_RES_ID_QUOTA_VER_OID_OFF = 3,
2221 LUSTRE_RES_ID_HSH_OFF = 3
2224 #define MDS_STATUS_CONN 1
2225 #define MDS_STATUS_LOV 2
2227 /* mdt_thread_info.mti_flags. */
2229 /* The flag indicates Size-on-MDS attributes are changed. */
2230 MF_SOM_CHANGE = (1 << 0),
2231 /* Flags indicates an epoch opens or closes. */
2232 MF_EPOCH_OPEN = (1 << 1),
2233 MF_EPOCH_CLOSE = (1 << 2),
2234 MF_MDC_CANCEL_FID1 = (1 << 3),
2235 MF_MDC_CANCEL_FID2 = (1 << 4),
2236 MF_MDC_CANCEL_FID3 = (1 << 5),
2237 MF_MDC_CANCEL_FID4 = (1 << 6),
2238 /* There is a pending attribute update. */
2239 MF_SOM_AU = (1 << 7),
2240 /* Cancel OST locks while getattr OST attributes. */
2241 MF_GETATTR_LOCK = (1 << 8),
2242 MF_GET_MDT_IDX = (1 << 9),
2245 #define MF_SOM_LOCAL_FLAGS (MF_SOM_CHANGE | MF_EPOCH_OPEN | MF_EPOCH_CLOSE)
2247 #define LUSTRE_BFLAG_UNCOMMITTED_WRITES 0x1
2249 /* these should be identical to their EXT4_*_FL counterparts, they are
2250 * redefined here only to avoid dragging in fs/ext4/ext4.h */
2251 #define LUSTRE_SYNC_FL 0x00000008 /* Synchronous updates */
2252 #define LUSTRE_IMMUTABLE_FL 0x00000010 /* Immutable file */
2253 #define LUSTRE_APPEND_FL 0x00000020 /* writes to file may only append */
2254 #define LUSTRE_NOATIME_FL 0x00000080 /* do not update atime */
2255 #define LUSTRE_DIRSYNC_FL 0x00010000 /* dirsync behaviour (dir only) */
2258 /* Convert wire LUSTRE_*_FL to corresponding client local VFS S_* values
2259 * for the client inode i_flags. The LUSTRE_*_FL are the Lustre wire
2260 * protocol equivalents of LDISKFS_*_FL values stored on disk, while
2261 * the S_* flags are kernel-internal values that change between kernel
2262 * versions. These flags are set/cleared via FSFILT_IOC_{GET,SET}_FLAGS.
2263 * See b=16526 for a full history. */
2264 static inline int ll_ext_to_inode_flags(int flags)
2266 return (((flags & LUSTRE_SYNC_FL) ? S_SYNC : 0) |
2267 ((flags & LUSTRE_NOATIME_FL) ? S_NOATIME : 0) |
2268 ((flags & LUSTRE_APPEND_FL) ? S_APPEND : 0) |
2269 #if defined(S_DIRSYNC)
2270 ((flags & LUSTRE_DIRSYNC_FL) ? S_DIRSYNC : 0) |
2272 ((flags & LUSTRE_IMMUTABLE_FL) ? S_IMMUTABLE : 0));
2275 static inline int ll_inode_to_ext_flags(int iflags)
2277 return (((iflags & S_SYNC) ? LUSTRE_SYNC_FL : 0) |
2278 ((iflags & S_NOATIME) ? LUSTRE_NOATIME_FL : 0) |
2279 ((iflags & S_APPEND) ? LUSTRE_APPEND_FL : 0) |
2280 #if defined(S_DIRSYNC)
2281 ((iflags & S_DIRSYNC) ? LUSTRE_DIRSYNC_FL : 0) |
2283 ((iflags & S_IMMUTABLE) ? LUSTRE_IMMUTABLE_FL : 0));
2287 /* 64 possible states */
2288 enum md_transient_state {
2289 MS_RESTORE = (1 << 0), /* restore is running */
2295 struct lustre_handle handle;
2297 __u64 size; /* Offset, in the case of MDS_READPAGE */
2301 __u64 blocks; /* XID, in the case of MDS_READPAGE */
2303 __u64 t_state; /* transient file state defined in
2304 * enum md_transient_state
2305 * was "ino" until 2.4.0 */
2312 __u32 flags; /* from vfs for pin/unpin, LUSTRE_BFLAG close */
2314 __u32 nlink; /* #bytes to read in the case of MDS_READPAGE */
2315 __u32 unused2; /* was "generation" until 2.4.0 */
2320 __u32 max_cookiesize;
2321 __u32 uid_h; /* high 32-bits of uid, for FUID */
2322 __u32 gid_h; /* high 32-bits of gid, for FUID */
2323 __u32 padding_5; /* also fix lustre_swab_mdt_body */
2331 extern void lustre_swab_mdt_body (struct mdt_body *b);
2333 struct mdt_ioepoch {
2334 struct lustre_handle handle;
2340 extern void lustre_swab_mdt_ioepoch (struct mdt_ioepoch *b);
2342 /* permissions for md_perm.mp_perm */
2344 CFS_SETUID_PERM = 0x01,
2345 CFS_SETGID_PERM = 0x02,
2346 CFS_SETGRP_PERM = 0x04,
2347 CFS_RMTACL_PERM = 0x08,
2348 CFS_RMTOWN_PERM = 0x10
2351 /* inode access permission for remote user, the inode info are omitted,
2352 * for client knows them. */
2353 struct mdt_remote_perm {
2360 __u32 rp_access_perm; /* MAY_READ/WRITE/EXEC */
2364 extern void lustre_swab_mdt_remote_perm(struct mdt_remote_perm *p);
2366 struct mdt_rec_setattr {
2376 __u32 sa_padding_1_h;
2377 struct lu_fid sa_fid;
2386 __u32 sa_attr_flags;
2388 __u32 sa_bias; /* some operation flags */
2394 extern void lustre_swab_mdt_rec_setattr (struct mdt_rec_setattr *sa);
2397 * Attribute flags used in mdt_rec_setattr::sa_valid.
2398 * The kernel's #defines for ATTR_* should not be used over the network
2399 * since the client and MDS may run different kernels (see bug 13828)
2400 * Therefore, we should only use MDS_ATTR_* attributes for sa_valid.
2402 #define MDS_ATTR_MODE 0x1ULL /* = 1 */
2403 #define MDS_ATTR_UID 0x2ULL /* = 2 */
2404 #define MDS_ATTR_GID 0x4ULL /* = 4 */
2405 #define MDS_ATTR_SIZE 0x8ULL /* = 8 */
2406 #define MDS_ATTR_ATIME 0x10ULL /* = 16 */
2407 #define MDS_ATTR_MTIME 0x20ULL /* = 32 */
2408 #define MDS_ATTR_CTIME 0x40ULL /* = 64 */
2409 #define MDS_ATTR_ATIME_SET 0x80ULL /* = 128 */
2410 #define MDS_ATTR_MTIME_SET 0x100ULL /* = 256 */
2411 #define MDS_ATTR_FORCE 0x200ULL /* = 512, Not a change, but a change it */
2412 #define MDS_ATTR_ATTR_FLAG 0x400ULL /* = 1024 */
2413 #define MDS_ATTR_KILL_SUID 0x800ULL /* = 2048 */
2414 #define MDS_ATTR_KILL_SGID 0x1000ULL /* = 4096 */
2415 #define MDS_ATTR_CTIME_SET 0x2000ULL /* = 8192 */
2416 #define MDS_ATTR_FROM_OPEN 0x4000ULL /* = 16384, called from open path, ie O_TRUNC */
2417 #define MDS_ATTR_BLOCKS 0x8000ULL /* = 32768 */
2420 #define FMODE_READ 00000001
2421 #define FMODE_WRITE 00000002
2424 #define MDS_FMODE_CLOSED 00000000
2425 #define MDS_FMODE_EXEC 00000004
2426 /* IO Epoch is opened on a closed file. */
2427 #define MDS_FMODE_EPOCH 01000000
2428 /* IO Epoch is opened on a file truncate. */
2429 #define MDS_FMODE_TRUNC 02000000
2430 /* Size-on-MDS Attribute Update is pending. */
2431 #define MDS_FMODE_SOM 04000000
2433 #define MDS_OPEN_CREATED 00000010
2434 #define MDS_OPEN_CROSS 00000020
2436 #define MDS_OPEN_CREAT 00000100
2437 #define MDS_OPEN_EXCL 00000200
2438 #define MDS_OPEN_TRUNC 00001000
2439 #define MDS_OPEN_APPEND 00002000
2440 #define MDS_OPEN_SYNC 00010000
2441 #define MDS_OPEN_DIRECTORY 00200000
2443 #define MDS_OPEN_BY_FID 040000000 /* open_by_fid for known object */
2444 #define MDS_OPEN_DELAY_CREATE 0100000000 /* delay initial object create */
2445 #define MDS_OPEN_OWNEROVERRIDE 0200000000 /* NFSD rw-reopen ro file for owner */
2446 #define MDS_OPEN_JOIN_FILE 0400000000 /* open for join file.
2447 * We do not support JOIN FILE
2448 * anymore, reserve this flags
2449 * just for preventing such bit
2452 #define MDS_OPEN_LOCK 04000000000 /* This open requires open lock */
2453 #define MDS_OPEN_HAS_EA 010000000000 /* specify object create pattern */
2454 #define MDS_OPEN_HAS_OBJS 020000000000 /* Just set the EA the obj exist */
2455 #define MDS_OPEN_NORESTORE 0100000000000ULL /* Do not restore file at open */
2456 #define MDS_OPEN_NEWSTRIPE 0200000000000ULL /* New stripe needed (restripe or
2458 #define MDS_OPEN_VOLATILE 0400000000000ULL /* File is volatile = created
2460 #define MDS_OPEN_LEASE 01000000000000ULL /* Open the file and grant lease
2461 * delegation, succeed if it's not
2462 * being opened with conflict mode.
2464 #define MDS_OPEN_RELEASE 02000000000000ULL /* Open the file for HSM release */
2466 /* permission for create non-directory file */
2467 #define MAY_CREATE (1 << 7)
2468 /* permission for create directory file */
2469 #define MAY_LINK (1 << 8)
2470 /* permission for delete from the directory */
2471 #define MAY_UNLINK (1 << 9)
2472 /* source's permission for rename */
2473 #define MAY_RENAME_SRC (1 << 10)
2474 /* target's permission for rename */
2475 #define MAY_RENAME_TAR (1 << 11)
2476 /* part (parent's) VTX permission check */
2477 #define MAY_VTX_PART (1 << 12)
2478 /* full VTX permission check */
2479 #define MAY_VTX_FULL (1 << 13)
2480 /* lfs rgetfacl permission check */
2481 #define MAY_RGETFACL (1 << 14)
2484 MDS_CHECK_SPLIT = 1 << 0,
2485 MDS_CROSS_REF = 1 << 1,
2486 MDS_VTX_BYPASS = 1 << 2,
2487 MDS_PERM_BYPASS = 1 << 3,
2489 MDS_QUOTA_IGNORE = 1 << 5,
2490 /* Was MDS_CLOSE_CLEANUP (1 << 6), No more used */
2491 MDS_KEEP_ORPHAN = 1 << 7,
2492 MDS_RECOV_OPEN = 1 << 8,
2493 MDS_DATA_MODIFIED = 1 << 9,
2494 MDS_CREATE_VOLATILE = 1 << 10,
2495 MDS_OWNEROVERRIDE = 1 << 11,
2496 MDS_HSM_RELEASE = 1 << 12,
2499 /* instance of mdt_reint_rec */
2500 struct mdt_rec_create {
2508 __u32 cr_suppgid1_h;
2510 __u32 cr_suppgid2_h;
2511 struct lu_fid cr_fid1;
2512 struct lu_fid cr_fid2;
2513 struct lustre_handle cr_old_handle; /* handle in case of open replay */
2517 __u64 cr_padding_1; /* rr_blocks */
2520 /* use of helpers set/get_mrc_cr_flags() is needed to access
2521 * 64 bits cr_flags [cr_flags_l, cr_flags_h], this is done to
2522 * extend cr_flags size without breaking 1.8 compat */
2523 __u32 cr_flags_l; /* for use with open, low 32 bits */
2524 __u32 cr_flags_h; /* for use with open, high 32 bits */
2525 __u32 cr_umask; /* umask for create */
2526 __u32 cr_padding_4; /* rr_padding_4 */
2529 static inline void set_mrc_cr_flags(struct mdt_rec_create *mrc, __u64 flags)
2531 mrc->cr_flags_l = (__u32)(flags & 0xFFFFFFFFUll);
2532 mrc->cr_flags_h = (__u32)(flags >> 32);
2535 static inline __u64 get_mrc_cr_flags(struct mdt_rec_create *mrc)
2537 return ((__u64)(mrc->cr_flags_l) | ((__u64)mrc->cr_flags_h << 32));
2540 /* instance of mdt_reint_rec */
2541 struct mdt_rec_link {
2549 __u32 lk_suppgid1_h;
2551 __u32 lk_suppgid2_h;
2552 struct lu_fid lk_fid1;
2553 struct lu_fid lk_fid2;
2555 __u64 lk_padding_1; /* rr_atime */
2556 __u64 lk_padding_2; /* rr_ctime */
2557 __u64 lk_padding_3; /* rr_size */
2558 __u64 lk_padding_4; /* rr_blocks */
2560 __u32 lk_padding_5; /* rr_mode */
2561 __u32 lk_padding_6; /* rr_flags */
2562 __u32 lk_padding_7; /* rr_padding_2 */
2563 __u32 lk_padding_8; /* rr_padding_3 */
2564 __u32 lk_padding_9; /* rr_padding_4 */
2567 /* instance of mdt_reint_rec */
2568 struct mdt_rec_unlink {
2576 __u32 ul_suppgid1_h;
2578 __u32 ul_suppgid2_h;
2579 struct lu_fid ul_fid1;
2580 struct lu_fid ul_fid2;
2582 __u64 ul_padding_2; /* rr_atime */
2583 __u64 ul_padding_3; /* rr_ctime */
2584 __u64 ul_padding_4; /* rr_size */
2585 __u64 ul_padding_5; /* rr_blocks */
2588 __u32 ul_padding_6; /* rr_flags */
2589 __u32 ul_padding_7; /* rr_padding_2 */
2590 __u32 ul_padding_8; /* rr_padding_3 */
2591 __u32 ul_padding_9; /* rr_padding_4 */
2594 /* instance of mdt_reint_rec */
2595 struct mdt_rec_rename {
2603 __u32 rn_suppgid1_h;
2605 __u32 rn_suppgid2_h;
2606 struct lu_fid rn_fid1;
2607 struct lu_fid rn_fid2;
2609 __u64 rn_padding_1; /* rr_atime */
2610 __u64 rn_padding_2; /* rr_ctime */
2611 __u64 rn_padding_3; /* rr_size */
2612 __u64 rn_padding_4; /* rr_blocks */
2613 __u32 rn_bias; /* some operation flags */
2614 __u32 rn_mode; /* cross-ref rename has mode */
2615 __u32 rn_padding_5; /* rr_flags */
2616 __u32 rn_padding_6; /* rr_padding_2 */
2617 __u32 rn_padding_7; /* rr_padding_3 */
2618 __u32 rn_padding_8; /* rr_padding_4 */
2621 /* instance of mdt_reint_rec */
2622 struct mdt_rec_setxattr {
2630 __u32 sx_suppgid1_h;
2632 __u32 sx_suppgid2_h;
2633 struct lu_fid sx_fid;
2634 __u64 sx_padding_1; /* These three are rr_fid2 */
2639 __u64 sx_padding_5; /* rr_ctime */
2640 __u64 sx_padding_6; /* rr_size */
2641 __u64 sx_padding_7; /* rr_blocks */
2644 __u32 sx_padding_8; /* rr_flags */
2645 __u32 sx_padding_9; /* rr_padding_2 */
2646 __u32 sx_padding_10; /* rr_padding_3 */
2647 __u32 sx_padding_11; /* rr_padding_4 */
2651 * mdt_rec_reint is the template for all mdt_reint_xxx structures.
2652 * Do NOT change the size of various members, otherwise the value
2653 * will be broken in lustre_swab_mdt_rec_reint().
2655 * If you add new members in other mdt_reint_xxx structres and need to use the
2656 * rr_padding_x fields, then update lustre_swab_mdt_rec_reint() also.
2658 struct mdt_rec_reint {
2666 __u32 rr_suppgid1_h;
2668 __u32 rr_suppgid2_h;
2669 struct lu_fid rr_fid1;
2670 struct lu_fid rr_fid2;
2681 __u32 rr_padding_4; /* also fix lustre_swab_mdt_rec_reint */
2684 extern void lustre_swab_mdt_rec_reint(struct mdt_rec_reint *rr);
2686 /* lmv structures */
2688 __u32 ld_tgt_count; /* how many MDS's */
2689 __u32 ld_active_tgt_count; /* how many active */
2690 __u32 ld_default_stripe_count; /* how many objects are used */
2691 __u32 ld_pattern; /* default hash pattern */
2692 __u64 ld_default_hash_size;
2693 __u64 ld_padding_1; /* also fix lustre_swab_lmv_desc */
2694 __u32 ld_padding_2; /* also fix lustre_swab_lmv_desc */
2695 __u32 ld_qos_maxage; /* in second */
2696 __u32 ld_padding_3; /* also fix lustre_swab_lmv_desc */
2697 __u32 ld_padding_4; /* also fix lustre_swab_lmv_desc */
2698 struct obd_uuid ld_uuid;
2701 extern void lustre_swab_lmv_desc (struct lmv_desc *ld);
2703 /* lmv structures */
2704 #define LMV_MAGIC_V1 0x0CD10CD0 /* normal stripe lmv magic */
2705 #define LMV_USER_MAGIC 0x0CD20CD0 /* default lmv magic*/
2706 #define LMV_MAGIC LMV_MAGIC_V1
2708 enum lmv_hash_type {
2709 LMV_HASH_TYPE_ALL_CHARS = 1,
2710 LMV_HASH_TYPE_FNV_1A_64 = 2,
2713 #define LMV_HASH_NAME_ALL_CHARS "all_char"
2714 #define LMV_HASH_NAME_FNV_1A_64 "fnv_1a_64"
2717 * The FNV-1a hash algorithm is as follows:
2718 * hash = FNV_offset_basis
2719 * for each octet_of_data to be hashed
2720 * hash = hash XOR octet_of_data
2721 * hash = hash × FNV_prime
2723 * http://en.wikipedia.org/wiki/Fowler–Noll–Vo_hash_function#FNV-1a_hash
2725 * http://www.isthe.com/chongo/tech/comp/fnv/index.html#FNV-reference-source
2726 * FNV_prime is 2^40 + 2^8 + 0xb3 = 0x100000001b3ULL
2728 #define LUSTRE_FNV_1A_64_PRIME 0x100000001b3ULL
2729 #define LUSTRE_FNV_1A_64_OFFSET_BIAS 0xcbf29ce484222325ULL
2730 static inline __u64 lustre_hash_fnv_1a_64(const void *buf, size_t size)
2732 __u64 hash = LUSTRE_FNV_1A_64_OFFSET_BIAS;
2733 const unsigned char *p = buf;
2736 for (i = 0; i < size; i++) {
2738 hash *= LUSTRE_FNV_1A_64_PRIME;
2744 struct lmv_mds_md_v1 {
2746 __u32 lmv_stripe_count; /* stripe count */
2747 __u32 lmv_master_mdt_index; /* master MDT index */
2748 __u32 lmv_hash_type; /* dir stripe policy, i.e. indicate
2749 * which hash function to be used */
2750 __u32 lmv_layout_version; /* Used for directory restriping */
2752 char lmv_pool_name[LOV_MAXPOOLNAME]; /* pool name */
2753 struct lu_fid lmv_stripe_fids[0]; /* FIDs for each stripe */
2758 struct lmv_mds_md_v1 lmv_md_v1;
2759 struct lmv_user_md lmv_user_md;
2762 extern void lustre_swab_lmv_mds_md(union lmv_mds_md *lmm);
2764 static inline int lmv_mds_md_size(int stripe_count, unsigned int lmm_magic)
2766 switch (lmm_magic) {
2767 case LMV_MAGIC_V1: {
2768 struct lmv_mds_md_v1 *lmm1;
2770 return sizeof(*lmm1) + stripe_count *
2771 sizeof(lmm1->lmv_stripe_fids[0]);
2778 static inline int lmv_mds_md_stripe_count_get(const union lmv_mds_md *lmm)
2780 switch (le32_to_cpu(lmm->lmv_magic)) {
2782 return le32_to_cpu(lmm->lmv_md_v1.lmv_stripe_count);
2783 case LMV_USER_MAGIC:
2784 return le32_to_cpu(lmm->lmv_user_md.lum_stripe_count);
2790 static inline int lmv_mds_md_stripe_count_set(union lmv_mds_md *lmm,
2791 unsigned int stripe_count)
2793 switch (le32_to_cpu(lmm->lmv_magic)) {
2795 lmm->lmv_md_v1.lmv_stripe_count = cpu_to_le32(stripe_count);
2797 case LMV_USER_MAGIC:
2798 lmm->lmv_user_md.lum_stripe_count = cpu_to_le32(stripe_count);
2810 FLD_FIRST_OPC = FLD_QUERY
2816 SEQ_FIRST_OPC = SEQ_QUERY
2820 SEQ_ALLOC_SUPER = 0,
2832 LFSCK_NOTIFY = 1101,
2835 LFSCK_FIRST_OPC = LFSCK_NOTIFY
2839 * LOV data structures
2842 #define LOV_MAX_UUID_BUFFER_SIZE 8192
2843 /* The size of the buffer the lov/mdc reserves for the
2844 * array of UUIDs returned by the MDS. With the current
2845 * protocol, this will limit the max number of OSTs per LOV */
2847 #define LOV_DESC_MAGIC 0xB0CCDE5C
2849 /* LOV settings descriptor (should only contain static info) */
2851 __u32 ld_tgt_count; /* how many OBD's */
2852 __u32 ld_active_tgt_count; /* how many active */
2853 __u32 ld_default_stripe_count; /* how many objects are used */
2854 __u32 ld_pattern; /* default PATTERN_RAID0 */
2855 __u64 ld_default_stripe_size; /* in bytes */
2856 __u64 ld_default_stripe_offset; /* in bytes */
2857 __u32 ld_padding_0; /* unused */
2858 __u32 ld_qos_maxage; /* in second */
2859 __u32 ld_padding_1; /* also fix lustre_swab_lov_desc */
2860 __u32 ld_padding_2; /* also fix lustre_swab_lov_desc */
2861 struct obd_uuid ld_uuid;
2864 #define ld_magic ld_active_tgt_count /* for swabbing from llogs */
2866 extern void lustre_swab_lov_desc (struct lov_desc *ld);
2871 /* opcodes -- MUST be distinct from OST/MDS opcodes */
2876 LDLM_BL_CALLBACK = 104,
2877 LDLM_CP_CALLBACK = 105,
2878 LDLM_GL_CALLBACK = 106,
2879 LDLM_SET_INFO = 107,
2882 #define LDLM_FIRST_OPC LDLM_ENQUEUE
2884 #define RES_NAME_SIZE 4
2885 struct ldlm_res_id {
2886 __u64 name[RES_NAME_SIZE];
2889 #define DLDLMRES "["LPX64":"LPX64":"LPX64"]."LPX64i
2890 #define PLDLMRES(res) (res)->lr_name.name[0], (res)->lr_name.name[1], \
2891 (res)->lr_name.name[2], (res)->lr_name.name[3]
2893 extern void lustre_swab_ldlm_res_id (struct ldlm_res_id *id);
2895 static inline int ldlm_res_eq(const struct ldlm_res_id *res0,
2896 const struct ldlm_res_id *res1)
2898 return !memcmp(res0, res1, sizeof(*res0));
2915 #define LCK_MODE_NUM 8
2925 #define LDLM_MIN_TYPE LDLM_PLAIN
2927 struct ldlm_extent {
2933 static inline int ldlm_extent_overlap(struct ldlm_extent *ex1,
2934 struct ldlm_extent *ex2)
2936 return (ex1->start <= ex2->end) && (ex2->start <= ex1->end);
2939 /* check if @ex1 contains @ex2 */
2940 static inline int ldlm_extent_contain(struct ldlm_extent *ex1,
2941 struct ldlm_extent *ex2)
2943 return (ex1->start <= ex2->start) && (ex1->end >= ex2->end);
2946 struct ldlm_inodebits {
2950 struct ldlm_flock_wire {
2958 /* it's important that the fields of the ldlm_extent structure match
2959 * the first fields of the ldlm_flock structure because there is only
2960 * one ldlm_swab routine to process the ldlm_policy_data_t union. if
2961 * this ever changes we will need to swab the union differently based
2962 * on the resource type. */
2965 struct ldlm_extent l_extent;
2966 struct ldlm_flock_wire l_flock;
2967 struct ldlm_inodebits l_inodebits;
2968 } ldlm_wire_policy_data_t;
2970 extern void lustre_swab_ldlm_policy_data (ldlm_wire_policy_data_t *d);
2972 union ldlm_gl_desc {
2973 struct ldlm_gl_lquota_desc lquota_desc;
2976 extern void lustre_swab_gl_desc(union ldlm_gl_desc *);
2978 struct ldlm_intent {
2982 extern void lustre_swab_ldlm_intent (struct ldlm_intent *i);
2984 struct ldlm_resource_desc {
2985 ldlm_type_t lr_type;
2986 __u32 lr_padding; /* also fix lustre_swab_ldlm_resource_desc */
2987 struct ldlm_res_id lr_name;
2990 extern void lustre_swab_ldlm_resource_desc (struct ldlm_resource_desc *r);
2992 struct ldlm_lock_desc {
2993 struct ldlm_resource_desc l_resource;
2994 ldlm_mode_t l_req_mode;
2995 ldlm_mode_t l_granted_mode;
2996 ldlm_wire_policy_data_t l_policy_data;
2999 extern void lustre_swab_ldlm_lock_desc (struct ldlm_lock_desc *l);
3001 #define LDLM_LOCKREQ_HANDLES 2
3002 #define LDLM_ENQUEUE_CANCEL_OFF 1
3004 struct ldlm_request {
3007 struct ldlm_lock_desc lock_desc;
3008 struct lustre_handle lock_handle[LDLM_LOCKREQ_HANDLES];
3011 extern void lustre_swab_ldlm_request (struct ldlm_request *rq);
3013 /* If LDLM_ENQUEUE, 1 slot is already occupied, 1 is available.
3014 * Otherwise, 2 are available. */
3015 #define ldlm_request_bufsize(count,type) \
3017 int _avail = LDLM_LOCKREQ_HANDLES; \
3018 _avail -= (type == LDLM_ENQUEUE ? LDLM_ENQUEUE_CANCEL_OFF : 0); \
3019 sizeof(struct ldlm_request) + \
3020 (count > _avail ? count - _avail : 0) * \
3021 sizeof(struct lustre_handle); \
3026 __u32 lock_padding; /* also fix lustre_swab_ldlm_reply */
3027 struct ldlm_lock_desc lock_desc;
3028 struct lustre_handle lock_handle;
3029 __u64 lock_policy_res1;
3030 __u64 lock_policy_res2;
3033 extern void lustre_swab_ldlm_reply (struct ldlm_reply *r);
3035 #define ldlm_flags_to_wire(flags) ((__u32)(flags))
3036 #define ldlm_flags_from_wire(flags) ((__u64)(flags))
3039 * Opcodes for mountconf (mgs and mgc)
3044 MGS_EXCEPTION, /* node died, etc. */
3045 MGS_TARGET_REG, /* whenever target starts up */
3051 #define MGS_FIRST_OPC MGS_CONNECT
3053 #define MGS_PARAM_MAXLEN 1024
3054 #define KEY_SET_INFO "set_info"
3056 struct mgs_send_param {
3057 char mgs_param[MGS_PARAM_MAXLEN];
3060 /* We pass this info to the MGS so it can write config logs */
3061 #define MTI_NAME_MAXLEN 64
3062 #define MTI_PARAM_MAXLEN 4096
3063 #define MTI_NIDS_MAX 32
3064 struct mgs_target_info {
3065 __u32 mti_lustre_ver;
3066 __u32 mti_stripe_index;
3067 __u32 mti_config_ver;
3069 __u32 mti_nid_count;
3070 __u32 mti_instance; /* Running instance of target */
3071 char mti_fsname[MTI_NAME_MAXLEN];
3072 char mti_svname[MTI_NAME_MAXLEN];
3073 char mti_uuid[sizeof(struct obd_uuid)];
3074 __u64 mti_nids[MTI_NIDS_MAX]; /* host nids (lnet_nid_t)*/
3075 char mti_params[MTI_PARAM_MAXLEN];
3077 extern void lustre_swab_mgs_target_info(struct mgs_target_info *oinfo);
3079 struct mgs_nidtbl_entry {
3080 __u64 mne_version; /* table version of this entry */
3081 __u32 mne_instance; /* target instance # */
3082 __u32 mne_index; /* target index */
3083 __u32 mne_length; /* length of this entry - by bytes */
3084 __u8 mne_type; /* target type LDD_F_SV_TYPE_OST/MDT */
3085 __u8 mne_nid_type; /* type of nid(mbz). for ipv6. */
3086 __u8 mne_nid_size; /* size of each NID, by bytes */
3087 __u8 mne_nid_count; /* # of NIDs in buffer */
3089 lnet_nid_t nids[0]; /* variable size buffer for NIDs. */
3092 extern void lustre_swab_mgs_nidtbl_entry(struct mgs_nidtbl_entry *oinfo);
3094 struct mgs_config_body {
3095 char mcb_name[MTI_NAME_MAXLEN]; /* logname */
3096 __u64 mcb_offset; /* next index of config log to request */
3097 __u16 mcb_type; /* type of log: CONFIG_T_[CONFIG|RECOVER] */
3099 __u8 mcb_bits; /* bits unit size of config log */
3100 __u32 mcb_units; /* # of units for bulk transfer */
3102 extern void lustre_swab_mgs_config_body(struct mgs_config_body *body);
3104 struct mgs_config_res {
3105 __u64 mcr_offset; /* index of last config log */
3106 __u64 mcr_size; /* size of the log */
3108 extern void lustre_swab_mgs_config_res(struct mgs_config_res *body);
3110 /* Config marker flags (in config log) */
3111 #define CM_START 0x01
3113 #define CM_SKIP 0x04
3114 #define CM_UPGRADE146 0x08
3115 #define CM_EXCLUDE 0x10
3116 #define CM_START_SKIP (CM_START | CM_SKIP)
3119 __u32 cm_step; /* aka config version */
3121 __u32 cm_vers; /* lustre release version number */
3122 __u32 cm_padding; /* 64 bit align */
3123 obd_time cm_createtime; /*when this record was first created */
3124 obd_time cm_canceltime; /*when this record is no longer valid*/
3125 char cm_tgtname[MTI_NAME_MAXLEN];
3126 char cm_comment[MTI_NAME_MAXLEN];
3129 extern void lustre_swab_cfg_marker(struct cfg_marker *marker,
3130 int swab, int size);
3133 * Opcodes for multiple servers.
3143 #define OBD_FIRST_OPC OBD_PING
3145 /* catalog of log objects */
3147 /** Identifier for a single log object */
3149 struct ost_id lgl_oi;
3151 } __attribute__((packed));
3153 /** Records written to the CATALOGS list */
3154 #define CATLIST "CATALOGS"
3156 struct llog_logid lci_logid;
3160 } __attribute__((packed));
3162 /* Log data record types - there is no specific reason that these need to
3163 * be related to the RPC opcodes, but no reason not to (may be handy later?)
3165 #define LLOG_OP_MAGIC 0x10600000
3166 #define LLOG_OP_MASK 0xfff00000
3169 LLOG_PAD_MAGIC = LLOG_OP_MAGIC | 0x00000,
3170 OST_SZ_REC = LLOG_OP_MAGIC | 0x00f00,
3171 /* OST_RAID1_REC = LLOG_OP_MAGIC | 0x01000, never used */
3172 MDS_UNLINK_REC = LLOG_OP_MAGIC | 0x10000 | (MDS_REINT << 8) |
3173 REINT_UNLINK, /* obsolete after 2.5.0 */
3174 MDS_UNLINK64_REC = LLOG_OP_MAGIC | 0x90000 | (MDS_REINT << 8) |
3176 /* MDS_SETATTR_REC = LLOG_OP_MAGIC | 0x12401, obsolete 1.8.0 */
3177 MDS_SETATTR64_REC = LLOG_OP_MAGIC | 0x90000 | (MDS_REINT << 8) |
3179 OBD_CFG_REC = LLOG_OP_MAGIC | 0x20000,
3180 /* PTL_CFG_REC = LLOG_OP_MAGIC | 0x30000, obsolete 1.4.0 */
3181 LLOG_GEN_REC = LLOG_OP_MAGIC | 0x40000,
3182 /* LLOG_JOIN_REC = LLOG_OP_MAGIC | 0x50000, obsolete 1.8.0 */
3183 CHANGELOG_REC = LLOG_OP_MAGIC | 0x60000,
3184 CHANGELOG_USER_REC = LLOG_OP_MAGIC | 0x70000,
3185 HSM_AGENT_REC = LLOG_OP_MAGIC | 0x80000,
3186 LLOG_HDR_MAGIC = LLOG_OP_MAGIC | 0x45539,
3187 LLOG_LOGID_MAGIC = LLOG_OP_MAGIC | 0x4553b,
3190 #define LLOG_REC_HDR_NEEDS_SWABBING(r) \
3191 (((r)->lrh_type & __swab32(LLOG_OP_MASK)) == __swab32(LLOG_OP_MAGIC))
3193 /** Log record header - stored in little endian order.
3194 * Each record must start with this struct, end with a llog_rec_tail,
3195 * and be a multiple of 256 bits in size.
3197 struct llog_rec_hdr {
3204 struct llog_rec_tail {
3209 /* Where data follow just after header */
3210 #define REC_DATA(ptr) \
3211 ((void *)((char *)ptr + sizeof(struct llog_rec_hdr)))
3213 #define REC_DATA_LEN(rec) \
3214 (rec->lrh_len - sizeof(struct llog_rec_hdr) - \
3215 sizeof(struct llog_rec_tail))
3217 struct llog_logid_rec {
3218 struct llog_rec_hdr lid_hdr;
3219 struct llog_logid lid_id;
3223 struct llog_rec_tail lid_tail;
3224 } __attribute__((packed));
3226 struct llog_unlink_rec {
3227 struct llog_rec_hdr lur_hdr;
3230 obd_count lur_count;
3231 struct llog_rec_tail lur_tail;
3232 } __attribute__((packed));
3234 struct llog_unlink64_rec {
3235 struct llog_rec_hdr lur_hdr;
3236 struct lu_fid lur_fid;
3237 obd_count lur_count; /* to destroy the lost precreated */
3241 struct llog_rec_tail lur_tail;
3242 } __attribute__((packed));
3244 struct llog_setattr64_rec {
3245 struct llog_rec_hdr lsr_hdr;
3246 struct ost_id lsr_oi;
3252 struct llog_rec_tail lsr_tail;
3253 } __attribute__((packed));
3255 struct llog_size_change_rec {
3256 struct llog_rec_hdr lsc_hdr;
3257 struct ll_fid lsc_fid;
3262 struct llog_rec_tail lsc_tail;
3263 } __attribute__((packed));
3265 #define CHANGELOG_MAGIC 0xca103000
3267 /** \a changelog_rec_type's that can't be masked */
3268 #define CHANGELOG_MINMASK (1 << CL_MARK)
3269 /** bits covering all \a changelog_rec_type's */
3270 #define CHANGELOG_ALLMASK 0XFFFFFFFF
3271 /** default \a changelog_rec_type mask */
3272 #define CHANGELOG_DEFMASK CHANGELOG_ALLMASK & ~(1 << CL_ATIME | 1 << CL_CLOSE)
3274 /* changelog llog name, needed by client replicators */
3275 #define CHANGELOG_CATALOG "changelog_catalog"
3277 struct changelog_setinfo {
3280 } __attribute__((packed));
3282 /** changelog record */
3283 struct llog_changelog_rec {
3284 struct llog_rec_hdr cr_hdr;
3285 struct changelog_rec cr;
3286 struct llog_rec_tail cr_tail; /**< for_sizezof_only */
3287 } __attribute__((packed));
3289 struct llog_changelog_ext_rec {
3290 struct llog_rec_hdr cr_hdr;
3291 struct changelog_ext_rec cr;
3292 struct llog_rec_tail cr_tail; /**< for_sizezof_only */
3293 } __attribute__((packed));
3295 #define CHANGELOG_USER_PREFIX "cl"
3297 struct llog_changelog_user_rec {
3298 struct llog_rec_hdr cur_hdr;
3302 struct llog_rec_tail cur_tail;
3303 } __attribute__((packed));
3305 enum agent_req_status {
3313 static inline char *agent_req_status2name(enum agent_req_status ars)
3331 static inline bool agent_req_in_final_state(enum agent_req_status ars)
3333 return ((ars == ARS_SUCCEED) || (ars == ARS_FAILED) ||
3334 (ars == ARS_CANCELED));
3337 struct llog_agent_req_rec {
3338 struct llog_rec_hdr arr_hdr; /**< record header */
3339 __u32 arr_status; /**< status of the request */
3341 * agent_req_status */
3342 __u32 arr_archive_id; /**< backend archive number */
3343 __u64 arr_flags; /**< req flags */
3344 __u64 arr_compound_id; /**< compound cookie */
3345 __u64 arr_req_create; /**< req. creation time */
3346 __u64 arr_req_change; /**< req. status change time */
3347 struct hsm_action_item arr_hai; /**< req. to the agent */
3348 struct llog_rec_tail arr_tail; /**< record tail for_sizezof_only */
3349 } __attribute__((packed));
3351 /* Old llog gen for compatibility */
3355 } __attribute__((packed));
3357 struct llog_gen_rec {
3358 struct llog_rec_hdr lgr_hdr;
3359 struct llog_gen lgr_gen;
3363 struct llog_rec_tail lgr_tail;
3366 /* On-disk header structure of each log object, stored in little endian order */
3367 #define LLOG_CHUNK_SIZE 8192
3368 #define LLOG_HEADER_SIZE (96)
3369 #define LLOG_BITMAP_BYTES (LLOG_CHUNK_SIZE - LLOG_HEADER_SIZE)
3371 #define LLOG_MIN_REC_SIZE (24) /* round(llog_rec_hdr + llog_rec_tail) */
3373 /* flags for the logs */
3375 LLOG_F_ZAP_WHEN_EMPTY = 0x1,
3376 LLOG_F_IS_CAT = 0x2,
3377 LLOG_F_IS_PLAIN = 0x4,
3380 struct llog_log_hdr {
3381 struct llog_rec_hdr llh_hdr;
3382 obd_time llh_timestamp;
3384 __u32 llh_bitmap_offset;
3388 /* for a catalog the first plain slot is next to it */
3389 struct obd_uuid llh_tgtuuid;
3390 __u32 llh_reserved[LLOG_HEADER_SIZE/sizeof(__u32) - 23];
3391 __u32 llh_bitmap[LLOG_BITMAP_BYTES/sizeof(__u32)];
3392 struct llog_rec_tail llh_tail;
3393 } __attribute__((packed));
3395 #define LLOG_BITMAP_SIZE(llh) (__u32)((llh->llh_hdr.lrh_len - \
3396 llh->llh_bitmap_offset - \
3397 sizeof(llh->llh_tail)) * 8)
3399 /** log cookies are used to reference a specific log file and a record therein */
3400 struct llog_cookie {
3401 struct llog_logid lgc_lgl;
3405 } __attribute__((packed));
3407 /** llog protocol */
3408 enum llogd_rpc_ops {
3409 LLOG_ORIGIN_HANDLE_CREATE = 501,
3410 LLOG_ORIGIN_HANDLE_NEXT_BLOCK = 502,
3411 LLOG_ORIGIN_HANDLE_READ_HEADER = 503,
3412 LLOG_ORIGIN_HANDLE_WRITE_REC = 504,
3413 LLOG_ORIGIN_HANDLE_CLOSE = 505,
3414 LLOG_ORIGIN_CONNECT = 506,
3415 LLOG_CATINFO = 507, /* deprecated */
3416 LLOG_ORIGIN_HANDLE_PREV_BLOCK = 508,
3417 LLOG_ORIGIN_HANDLE_DESTROY = 509, /* for destroy llog object*/
3419 LLOG_FIRST_OPC = LLOG_ORIGIN_HANDLE_CREATE
3423 struct llog_logid lgd_logid;
3425 __u32 lgd_llh_flags;
3427 __u32 lgd_saved_index;
3429 __u64 lgd_cur_offset;
3430 } __attribute__((packed));
3432 struct llogd_conn_body {
3433 struct llog_gen lgdc_gen;
3434 struct llog_logid lgdc_logid;
3435 __u32 lgdc_ctxt_idx;
3436 } __attribute__((packed));
3438 /* Note: 64-bit types are 64-bit aligned in structure */
3440 obd_valid o_valid; /* hot fields in this obdo */
3442 obd_id o_parent_seq;
3443 obd_size o_size; /* o_size-o_blocks == ost_lvb */
3447 obd_blocks o_blocks; /* brw: cli sent cached bytes */
3450 /* 32-bit fields start here: keep an even number of them via padding */
3451 obd_blksize o_blksize; /* optimal IO blocksize */
3452 obd_mode o_mode; /* brw: cli sent cache remain */
3456 obd_count o_nlink; /* brw: checksum */
3457 obd_count o_parent_oid;
3458 obd_count o_misc; /* brw: o_dropped */
3460 __u64 o_ioepoch; /* epoch in ost writes */
3461 __u32 o_stripe_idx; /* holds stripe idx */
3463 struct lustre_handle o_handle; /* brw: lock handle to prolong
3465 struct llog_cookie o_lcookie; /* destroy: unlink cookie from
3470 __u64 o_data_version; /* getattr: sum of iversion for
3472 * brw: grant space consumed on
3473 * the client for the write */
3479 #define o_dirty o_blocks
3480 #define o_undirty o_mode
3481 #define o_dropped o_misc
3482 #define o_cksum o_nlink
3483 #define o_grant_used o_data_version
3485 struct lfsck_request {
3497 __u16 lr_async_windows;
3499 struct lu_fid lr_fid;
3504 void lustre_swab_lfsck_request(struct lfsck_request *lr);
3506 struct lfsck_reply {
3512 void lustre_swab_lfsck_reply(struct lfsck_reply *lr);
3514 static inline void lustre_set_wire_obdo(struct obd_connect_data *ocd,
3516 const struct obdo *lobdo)
3519 wobdo->o_flags &= ~OBD_FL_LOCAL_MASK;
3523 if (unlikely(!(ocd->ocd_connect_flags & OBD_CONNECT_FID)) &&
3524 fid_seq_is_echo(ostid_seq(&lobdo->o_oi))) {
3525 /* Currently OBD_FL_OSTID will only be used when 2.4 echo
3526 * client communicate with pre-2.4 server */
3527 wobdo->o_oi.oi.oi_id = fid_oid(&lobdo->o_oi.oi_fid);
3528 wobdo->o_oi.oi.oi_seq = fid_seq(&lobdo->o_oi.oi_fid);
3532 static inline void lustre_get_wire_obdo(struct obd_connect_data *ocd,
3534 const struct obdo *wobdo)
3536 obd_flag local_flags = 0;
3538 if (lobdo->o_valid & OBD_MD_FLFLAGS)
3539 local_flags = lobdo->o_flags & OBD_FL_LOCAL_MASK;
3542 if (local_flags != 0) {
3543 lobdo->o_valid |= OBD_MD_FLFLAGS;
3544 lobdo->o_flags &= ~OBD_FL_LOCAL_MASK;
3545 lobdo->o_flags |= local_flags;
3550 if (unlikely(!(ocd->ocd_connect_flags & OBD_CONNECT_FID)) &&
3551 fid_seq_is_echo(wobdo->o_oi.oi.oi_seq)) {
3553 lobdo->o_oi.oi_fid.f_seq = wobdo->o_oi.oi.oi_seq;
3554 lobdo->o_oi.oi_fid.f_oid = wobdo->o_oi.oi.oi_id;
3555 lobdo->o_oi.oi_fid.f_ver = 0;
3559 extern void lustre_swab_obdo (struct obdo *o);
3561 /* request structure for OST's */
3566 /* Key for FIEMAP to be used in get_info calls */
3567 struct ll_fiemap_info_key {
3570 struct ll_user_fiemap fiemap;
3573 extern void lustre_swab_ost_body (struct ost_body *b);
3574 extern void lustre_swab_ost_last_id(obd_id *id);
3575 extern void lustre_swab_fiemap(struct ll_user_fiemap *fiemap);
3577 extern void lustre_swab_lov_user_md_v1(struct lov_user_md_v1 *lum);
3578 extern void lustre_swab_lov_user_md_v3(struct lov_user_md_v3 *lum);
3579 extern void lustre_swab_lov_user_md_objects(struct lov_user_ost_data *lod,
3581 extern void lustre_swab_lov_mds_md(struct lov_mds_md *lmm);
3584 extern void lustre_swab_llogd_body (struct llogd_body *d);
3585 extern void lustre_swab_llog_hdr (struct llog_log_hdr *h);
3586 extern void lustre_swab_llogd_conn_body (struct llogd_conn_body *d);
3587 extern void lustre_swab_llog_rec(struct llog_rec_hdr *rec);
3588 extern void lustre_swab_llog_id(struct llog_logid *lid);
3591 extern void lustre_swab_lustre_cfg(struct lustre_cfg *lcfg);
3593 /* Functions for dumping PTLRPC fields */
3594 void dump_rniobuf(struct niobuf_remote *rnb);
3595 void dump_ioo(struct obd_ioobj *nb);
3596 void dump_obdo(struct obdo *oa);
3597 void dump_ost_body(struct ost_body *ob);
3598 void dump_rcs(__u32 *rc);
3600 #define IDX_INFO_MAGIC 0x3D37CC37
3602 /* Index file transfer through the network. The server serializes the index into
3603 * a byte stream which is sent to the client via a bulk transfer */
3607 /* reply: see idx_info_flags below */
3610 /* request & reply: number of lu_idxpage (to be) transferred */
3614 /* request: requested attributes passed down to the iterator API */
3617 /* request & reply: index file identifier (FID) */
3618 struct lu_fid ii_fid;
3620 /* reply: version of the index file before starting to walk the index.
3621 * Please note that the version can be modified at any time during the
3625 /* request: hash to start with:
3626 * reply: hash of the first entry of the first lu_idxpage and hash
3627 * of the entry to read next if any */
3628 __u64 ii_hash_start;
3631 /* reply: size of keys in lu_idxpages, minimal one if II_FL_VARKEY is
3635 /* reply: size of records in lu_idxpages, minimal one if II_FL_VARREC
3643 extern void lustre_swab_idx_info(struct idx_info *ii);
3645 #define II_END_OFF MDS_DIR_END_OFF /* all entries have been read */
3647 /* List of flags used in idx_info::ii_flags */
3648 enum idx_info_flags {
3649 II_FL_NOHASH = 1 << 0, /* client doesn't care about hash value */
3650 II_FL_VARKEY = 1 << 1, /* keys can be of variable size */
3651 II_FL_VARREC = 1 << 2, /* records can be of variable size */
3652 II_FL_NONUNQ = 1 << 3, /* index supports non-unique keys */
3655 #define LIP_MAGIC 0x8A6D6B6C
3657 /* 4KB (= LU_PAGE_SIZE) container gathering key/record pairs */
3659 /* 16-byte header */
3662 __u16 lip_nr; /* number of entries in the container */
3663 __u64 lip_pad0; /* additional padding for future use */
3665 /* key/record pairs are stored in the remaining 4080 bytes.
3666 * depending upon the flags in idx_info::ii_flags, each key/record
3667 * pair might be preceded by:
3669 * - the key size (II_FL_VARKEY is set)
3670 * - the record size (II_FL_VARREC is set)
3672 * For the time being, we only support fixed-size key & record. */
3673 char lip_entries[0];
3675 extern void lustre_swab_lip_header(struct lu_idxpage *lip);
3677 #define LIP_HDR_SIZE (offsetof(struct lu_idxpage, lip_entries))
3679 /* Gather all possible type associated with a 4KB container */
3681 struct lu_dirpage lp_dir; /* for MDS_READPAGE */
3682 struct lu_idxpage lp_idx; /* for OBD_IDX_READ */
3683 char lp_array[LU_PAGE_SIZE];
3686 /* security opcodes */
3689 SEC_CTX_INIT_CONT = 802,
3692 SEC_FIRST_OPC = SEC_CTX_INIT
3696 * capa related definitions
3698 #define CAPA_HMAC_MAX_LEN 64
3699 #define CAPA_HMAC_KEY_MAX_LEN 56
3701 /* NB take care when changing the sequence of elements this struct,
3702 * because the offset info is used in find_capa() */
3703 struct lustre_capa {
3704 struct lu_fid lc_fid; /** fid */
3705 __u64 lc_opc; /** operations allowed */
3706 __u64 lc_uid; /** file owner */
3707 __u64 lc_gid; /** file group */
3708 __u32 lc_flags; /** HMAC algorithm & flags */
3709 __u32 lc_keyid; /** key# used for the capability */
3710 __u32 lc_timeout; /** capa timeout value (sec) */
3711 __u32 lc_expiry; /** expiry time (sec) */
3712 __u8 lc_hmac[CAPA_HMAC_MAX_LEN]; /** HMAC */
3713 } __attribute__((packed));
3715 extern void lustre_swab_lustre_capa(struct lustre_capa *c);
3717 /** lustre_capa::lc_opc */
3719 CAPA_OPC_BODY_WRITE = 1<<0, /**< write object data */
3720 CAPA_OPC_BODY_READ = 1<<1, /**< read object data */
3721 CAPA_OPC_INDEX_LOOKUP = 1<<2, /**< lookup object fid */
3722 CAPA_OPC_INDEX_INSERT = 1<<3, /**< insert object fid */
3723 CAPA_OPC_INDEX_DELETE = 1<<4, /**< delete object fid */
3724 CAPA_OPC_OSS_WRITE = 1<<5, /**< write oss object data */
3725 CAPA_OPC_OSS_READ = 1<<6, /**< read oss object data */
3726 CAPA_OPC_OSS_TRUNC = 1<<7, /**< truncate oss object */
3727 CAPA_OPC_OSS_DESTROY = 1<<8, /**< destroy oss object */
3728 CAPA_OPC_META_WRITE = 1<<9, /**< write object meta data */
3729 CAPA_OPC_META_READ = 1<<10, /**< read object meta data */
3732 #define CAPA_OPC_OSS_RW (CAPA_OPC_OSS_READ | CAPA_OPC_OSS_WRITE)
3733 #define CAPA_OPC_MDS_ONLY \
3734 (CAPA_OPC_BODY_WRITE | CAPA_OPC_BODY_READ | CAPA_OPC_INDEX_LOOKUP | \
3735 CAPA_OPC_INDEX_INSERT | CAPA_OPC_INDEX_DELETE)
3736 #define CAPA_OPC_OSS_ONLY \
3737 (CAPA_OPC_OSS_WRITE | CAPA_OPC_OSS_READ | CAPA_OPC_OSS_TRUNC | \
3738 CAPA_OPC_OSS_DESTROY)
3739 #define CAPA_OPC_MDS_DEFAULT ~CAPA_OPC_OSS_ONLY
3740 #define CAPA_OPC_OSS_DEFAULT ~(CAPA_OPC_MDS_ONLY | CAPA_OPC_OSS_ONLY)
3742 /* MDS capability covers object capability for operations of body r/w
3743 * (dir readpage/sendpage), index lookup/insert/delete and meta data r/w,
3744 * while OSS capability only covers object capability for operations of
3745 * oss data(file content) r/w/truncate.
3747 static inline int capa_for_mds(struct lustre_capa *c)
3749 return (c->lc_opc & CAPA_OPC_INDEX_LOOKUP) != 0;
3752 static inline int capa_for_oss(struct lustre_capa *c)
3754 return (c->lc_opc & CAPA_OPC_INDEX_LOOKUP) == 0;
3757 /* lustre_capa::lc_hmac_alg */
3759 CAPA_HMAC_ALG_SHA1 = 1, /**< sha1 algorithm */
3763 #define CAPA_FL_MASK 0x00ffffff
3764 #define CAPA_HMAC_ALG_MASK 0xff000000
3766 struct lustre_capa_key {
3767 __u64 lk_seq; /**< mds# */
3768 __u32 lk_keyid; /**< key# */
3770 __u8 lk_key[CAPA_HMAC_KEY_MAX_LEN]; /**< key */
3771 } __attribute__((packed));
3773 extern void lustre_swab_lustre_capa_key(struct lustre_capa_key *k);
3775 /** The link ea holds 1 \a link_ea_entry for each hardlink */
3776 #define LINK_EA_MAGIC 0x11EAF1DFUL
3777 struct link_ea_header {
3780 __u64 leh_len; /* total size */
3786 /** Hardlink data is name and parent fid.
3787 * Stored in this crazy struct for maximum packing and endian-neutrality
3789 struct link_ea_entry {
3790 /** __u16 stored big-endian, unaligned */
3791 unsigned char lee_reclen[2];
3792 unsigned char lee_parent_fid[sizeof(struct lu_fid)];
3794 }__attribute__((packed));
3796 /** fid2path request/reply structure */
3797 struct getinfo_fid2path {
3798 struct lu_fid gf_fid;
3803 } __attribute__((packed));
3805 void lustre_swab_fid2path (struct getinfo_fid2path *gf);
3808 LAYOUT_INTENT_ACCESS = 0,
3809 LAYOUT_INTENT_READ = 1,
3810 LAYOUT_INTENT_WRITE = 2,
3811 LAYOUT_INTENT_GLIMPSE = 3,
3812 LAYOUT_INTENT_TRUNC = 4,
3813 LAYOUT_INTENT_RELEASE = 5,
3814 LAYOUT_INTENT_RESTORE = 6
3817 /* enqueue layout lock with intent */
3818 struct layout_intent {
3819 __u32 li_opc; /* intent operation for enqueue, read, write etc */
3825 void lustre_swab_layout_intent(struct layout_intent *li);
3828 * On the wire version of hsm_progress structure.
3830 * Contains the userspace hsm_progress and some internal fields.
3832 struct hsm_progress_kernel {
3833 /* Field taken from struct hsm_progress */
3836 struct hsm_extent hpk_extent;
3838 __u16 hpk_errval; /* positive val */
3840 /* Additional fields */
3841 __u64 hpk_data_version;
3843 } __attribute__((packed));
3845 extern void lustre_swab_hsm_user_state(struct hsm_user_state *hus);
3846 extern void lustre_swab_hsm_current_action(struct hsm_current_action *action);
3847 extern void lustre_swab_hsm_progress_kernel(struct hsm_progress_kernel *hpk);
3848 extern void lustre_swab_hsm_user_state(struct hsm_user_state *hus);
3849 extern void lustre_swab_hsm_user_item(struct hsm_user_item *hui);
3850 extern void lustre_swab_hsm_request(struct hsm_request *hr);
3853 * OUT_UPDATE RPC Format
3855 * During the cross-ref operation, the Master MDT, which the client send the
3856 * request to, will disassembly the operation into object updates, then OSP
3857 * will send these updates to the remote MDT to be executed.
3859 * An UPDATE_OBJ RPC does a list of updates. Each update belongs to an
3860 * operation and does a type of modification to an object.
3868 * update (ub_count-th)
3870 * ub_count must be less than or equal to UPDATE_PER_RPC_MAX.
3875 * rc [+ buffers] (1st)
3876 * rc [+ buffers] (2st)
3878 * rc [+ buffers] (nr_count-th)
3880 * ur_count must be less than or equal to UPDATE_PER_RPC_MAX and should usually
3881 * be equal to ub_count.
3885 * Maximum number of updates per UPDATE_OBJ RPC
3887 #define OUT_UPDATE_PER_TRANS_MAX 10
3890 * Type of each update
3901 OUT_INDEX_LOOKUP = 9,
3902 OUT_INDEX_INSERT = 10,
3903 OUT_INDEX_DELETE = 11,
3908 UPDATE_FL_OST = 0x00000001, /* op from OST (not MDT) */
3909 UPDATE_FL_SYNC = 0x00000002, /* commit before replying */
3910 UPDATE_FL_COMMITTED = 0x00000004, /* op committed globally */
3911 UPDATE_FL_NOLOG = 0x00000008 /* for idempotent updates */
3914 struct object_update_param {
3915 __u16 oup_len; /* length of this parameter */
3922 struct object_update {
3923 __u16 ou_type; /* enum update_type */
3924 __u16 ou_params_count; /* update parameters count */
3925 __u32 ou_master_index; /* master MDT/OST index */
3926 __u32 ou_flags; /* enum update_flag */
3927 __u32 ou_padding1; /* padding 1 */
3928 __u64 ou_batchid; /* op transno on master */
3929 struct lu_fid ou_fid; /* object to be updated */
3930 struct object_update_param ou_params[0]; /* update params */
3933 #define UPDATE_REQUEST_MAGIC_V1 0xBDDE0001
3934 #define UPDATE_REQUEST_MAGIC_V2 0xBDDE0002
3935 #define UPDATE_REQUEST_MAGIC UPDATE_REQUEST_MAGIC_V2
3936 /* Hold object_updates sending to the remote OUT in single RPC */
3937 struct object_update_request {
3939 __u16 ourq_count; /* number of ourq_updates[] */
3941 struct object_update ourq_updates[0];
3944 void lustre_swab_object_update(struct object_update *ou);
3945 void lustre_swab_object_update_request(struct object_update_request *our);
3947 /* the result of object update */
3948 struct object_update_result {
3955 #define UPDATE_REPLY_MAGIC_V1 0x00BD0001
3956 #define UPDATE_REPLY_MAGIC_V2 0x00BD0002
3957 #define UPDATE_REPLY_MAGIC UPDATE_REPLY_MAGIC_V2
3958 /* Hold object_update_results being replied from the remote OUT. */
3959 struct object_update_reply {
3966 void lustre_swab_object_update_result(struct object_update_result *our);
3967 void lustre_swab_object_update_reply(struct object_update_reply *our);
3969 /** layout swap request structure
3970 * fid1 and fid2 are in mdt_body
3972 struct mdc_swap_layouts {
3976 void lustre_swab_swap_layouts(struct mdc_swap_layouts *msl);
3979 struct lustre_handle cd_handle;
3980 struct lu_fid cd_fid;
3981 __u64 cd_data_version;
3982 __u64 cd_reserved[8];
3985 void lustre_swab_close_data(struct close_data *data);