4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2010, 2016, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/include/lustre/lustre_user.h
34 * Lustre public user-space interface definitions.
37 #ifndef _LUSTRE_USER_H
38 #define _LUSTRE_USER_H
40 /** \defgroup lustreuser lustreuser
45 #include <linux/types.h>
48 # include <linux/quota.h>
49 # include <linux/string.h> /* snprintf() */
50 # include <linux/version.h>
51 #else /* !__KERNEL__ */
52 # define NEED_QUOTA_DEFS
55 # include <stdio.h> /* snprintf() */
57 # include <sys/quota.h>
58 # include <sys/stat.h>
59 #endif /* __KERNEL__ */
60 #include <lustre/ll_fiemap.h>
62 #if defined(__x86_64__) || defined(__ia64__) || defined(__ppc64__) || \
63 defined(__craynv) || defined(__mips64__) || defined(__powerpc64__) || \
65 typedef struct stat lstat_t;
66 # define lstat_f lstat
67 # define fstat_f fstat
68 # define fstatat_f fstatat
69 # define HAVE_LOV_USER_MDS_DATA
70 #elif defined(__USE_LARGEFILE64) || defined(__KERNEL__)
71 typedef struct stat64 lstat_t;
72 # define lstat_f lstat64
73 # define fstat_f fstat64
74 # define fstatat_f fstatat64
75 # define HAVE_LOV_USER_MDS_DATA
78 #define LUSTRE_EOF 0xffffffffffffffffULL
81 #define LL_SUPER_MAGIC 0x0BD00BD0
83 #ifndef FSFILT_IOC_GETFLAGS
84 #define FSFILT_IOC_GETFLAGS _IOR('f', 1, long)
85 #define FSFILT_IOC_SETFLAGS _IOW('f', 2, long)
86 #define FSFILT_IOC_GETVERSION _IOR('f', 3, long)
87 #define FSFILT_IOC_SETVERSION _IOW('f', 4, long)
88 #define FSFILT_IOC_GETVERSION_OLD _IOR('v', 1, long)
89 #define FSFILT_IOC_SETVERSION_OLD _IOW('v', 2, long)
92 /* FIEMAP flags supported by Lustre */
93 #define LUSTRE_FIEMAP_FLAGS_COMPAT (FIEMAP_FLAG_SYNC | FIEMAP_FLAG_DEVICE_ORDER)
95 enum obd_statfs_state {
96 OS_STATE_DEGRADED = 0x00000001, /**< RAID degraded/rebuilding */
97 OS_STATE_READONLY = 0x00000002, /**< filesystem is read-only */
98 OS_STATE_ENOSPC = 0x00000020, /**< not enough free space */
99 OS_STATE_ENOINO = 0x00000040, /**< not enough inodes */
113 __u32 os_state; /**< obd_statfs_state OS_STATE_* flag */
114 __u32 os_fprecreated; /* objs available now to the caller */
115 /* used in QoS code to find preferred
130 * FID is a cluster-wide unique identifier of a file or an object (stripe).
131 * FIDs are never reused.
135 * FID sequence. Sequence is a unit of migration: all files (objects)
136 * with FIDs from a given sequence are stored on the same server.
137 * Lustre should support 2^64 objects, so even if each sequence
138 * has only a single object we can still enumerate 2^64 objects.
141 /* FID number within sequence. */
144 * FID version, used to distinguish different versions (in the sense
145 * of snapshots, etc.) of the same file system object. Not currently
151 static inline bool fid_is_zero(const struct lu_fid *fid)
153 return fid->f_seq == 0 && fid->f_oid == 0;
156 /* Currently, the filter_fid::ff_parent::f_ver is not the real parent
157 * MDT-object's FID::f_ver, instead it is the OST-object index in its
158 * parent MDT-object's layout EA. */
159 #define f_stripe_idx f_ver
162 struct lu_fid ff_parent; /* ff_parent.f_ver == file stripe number */
165 /* keep this one for compatibility */
166 struct filter_fid_old {
167 struct lu_fid ff_parent;
172 /* Userspace should treat lu_fid as opaque, and only use the following methods
173 * to print or parse them. Other functions (e.g. compare, swab) could be moved
174 * here from lustre_idl.h if needed. */
175 typedef struct lu_fid lustre_fid;
178 * Following struct for object attributes, that will be kept inode's EA.
179 * Introduced in 2.0 release (please see b15993, for details)
180 * Added to all objects since Lustre 2.4 as contains self FID
182 struct lustre_mdt_attrs {
184 * Bitfield for supported data in this structure. From enum lma_compat.
185 * lma_self_fid and lma_flags are always available.
189 * Per-file incompat feature list. Lustre version should support all
190 * flags set in this field. The supported feature mask is available in
194 /** FID of this inode */
195 struct lu_fid lma_self_fid;
199 * Prior to 2.4, the LMA structure also included SOM attributes which has since
200 * been moved to a dedicated xattr
201 * lma_flags was also removed because of lma_compat/incompat fields.
203 #define LMA_OLD_SIZE (sizeof(struct lustre_mdt_attrs) + 5 * sizeof(__u64))
206 * OST object IDentifier.
214 struct lu_fid oi_fid;
218 #define DOSTID "%#llx:%llu"
219 #define POSTID(oi) ((unsigned long long)ostid_seq(oi)), \
220 ((unsigned long long)ostid_id(oi))
222 struct ll_futimes_3 {
224 __u64 lfu_atime_nsec;
226 __u64 lfu_mtime_nsec;
228 __u64 lfu_ctime_nsec;
232 * The ioctl naming rules:
233 * LL_* - works on the currently opened filehandle instead of parent dir
234 * *_OBD_* - gets data for both OSC or MDC (LOV, LMV indirectly)
235 * *_MDC_* - gets/sets data related to MDC
236 * *_LOV_* - gets/sets data related to OSC/LOV
237 * *FILE* - called on parent dir and passes in a filename
238 * *STRIPE* - set/get lov_user_md
239 * *INFO - set/get lov_user_mds_data
241 /* lustre_ioctl.h 101-150 */
242 #define LL_IOC_GETFLAGS _IOR ('f', 151, long)
243 #define LL_IOC_SETFLAGS _IOW ('f', 152, long)
244 #define LL_IOC_CLRFLAGS _IOW ('f', 153, long)
245 #define LL_IOC_LOV_SETSTRIPE _IOW ('f', 154, long)
246 #define LL_IOC_LOV_GETSTRIPE _IOW ('f', 155, long)
247 #define LL_IOC_LOV_SETEA _IOW ('f', 156, long)
248 /* LL_IOC_RECREATE_OBJ 157 obsolete */
249 /* LL_IOC_RECREATE_FID 157 obsolete */
250 #define LL_IOC_GROUP_LOCK _IOW ('f', 158, long)
251 #define LL_IOC_GROUP_UNLOCK _IOW ('f', 159, long)
252 /* LL_IOC_QUOTACHECK 160 OBD_IOC_QUOTACHECK */
253 /* LL_IOC_POLL_QUOTACHECK 161 OBD_IOC_POLL_QUOTACHECK */
254 /* LL_IOC_QUOTACTL 162 OBD_IOC_QUOTACTL */
255 #define IOC_OBD_STATFS _IOWR('f', 164, struct obd_statfs *)
256 /* IOC_LOV_GETINFO 165 obsolete */
257 #define LL_IOC_FLUSHCTX _IOW ('f', 166, long)
258 /* LL_IOC_RMTACL 167 obsolete */
259 #define LL_IOC_GETOBDCOUNT _IOR ('f', 168, long)
260 #define LL_IOC_LLOOP_ATTACH _IOWR('f', 169, long)
261 #define LL_IOC_LLOOP_DETACH _IOWR('f', 170, long)
262 #define LL_IOC_LLOOP_INFO _IOWR('f', 171, struct lu_fid)
263 #define LL_IOC_LLOOP_DETACH_BYDEV _IOWR('f', 172, long)
264 #define LL_IOC_PATH2FID _IOR ('f', 173, long)
265 #define LL_IOC_GET_CONNECT_FLAGS _IOWR('f', 174, __u64 *)
266 #define LL_IOC_GET_MDTIDX _IOR ('f', 175, int)
267 #define LL_IOC_FUTIMES_3 _IOWR('f', 176, struct ll_futimes_3)
268 /* lustre_ioctl.h 177-210 */
269 #define LL_IOC_HSM_STATE_GET _IOR('f', 211, struct hsm_user_state)
270 #define LL_IOC_HSM_STATE_SET _IOW('f', 212, struct hsm_state_set)
271 #define LL_IOC_HSM_CT_START _IOW('f', 213, struct lustre_kernelcomm)
272 #define LL_IOC_HSM_COPY_START _IOW('f', 214, struct hsm_copy *)
273 #define LL_IOC_HSM_COPY_END _IOW('f', 215, struct hsm_copy *)
274 #define LL_IOC_HSM_PROGRESS _IOW('f', 216, struct hsm_user_request)
275 #define LL_IOC_HSM_REQUEST _IOW('f', 217, struct hsm_user_request)
276 #define LL_IOC_DATA_VERSION _IOR('f', 218, struct ioc_data_version)
277 #define LL_IOC_LOV_SWAP_LAYOUTS _IOW('f', 219, \
278 struct lustre_swap_layouts)
279 #define LL_IOC_HSM_ACTION _IOR('f', 220, \
280 struct hsm_current_action)
281 /* lustre_ioctl.h 221-232 */
282 #define LL_IOC_LMV_SETSTRIPE _IOWR('f', 240, struct lmv_user_md)
283 #define LL_IOC_LMV_GETSTRIPE _IOWR('f', 241, struct lmv_user_md)
284 #define LL_IOC_REMOVE_ENTRY _IOWR('f', 242, __u64)
285 #define LL_IOC_SET_LEASE _IOWR('f', 243, long)
286 #define LL_IOC_GET_LEASE _IO('f', 244)
287 #define LL_IOC_HSM_IMPORT _IOWR('f', 245, struct hsm_user_import)
288 #define LL_IOC_LMV_SET_DEFAULT_STRIPE _IOWR('f', 246, struct lmv_user_md)
289 #define LL_IOC_MIGRATE _IOR('f', 247, int)
290 #define LL_IOC_FID2MDTIDX _IOWR('f', 248, struct lu_fid)
291 #define LL_IOC_GETPARENT _IOWR('f', 249, struct getparent)
292 #define LL_IOC_LADVISE _IOR('f', 250, struct llapi_lu_ladvise)
294 /* Lease types for use as arg and return of LL_IOC_{GET,SET}_LEASE ioctl. */
296 LL_LEASE_RDLCK = 0x1,
297 LL_LEASE_WRLCK = 0x2,
298 LL_LEASE_UNLCK = 0x4,
301 #define LL_STATFS_LMV 1
302 #define LL_STATFS_LOV 2
303 #define LL_STATFS_NODELAY 4
305 #define IOC_MDC_TYPE 'i'
306 #define IOC_MDC_LOOKUP _IOWR(IOC_MDC_TYPE, 20, struct obd_device *)
307 #define IOC_MDC_GETFILESTRIPE _IOWR(IOC_MDC_TYPE, 21, struct lov_user_md *)
308 #define IOC_MDC_GETFILEINFO _IOWR(IOC_MDC_TYPE, 22, struct lov_user_mds_data *)
309 #define LL_IOC_MDC_GETINFO _IOWR(IOC_MDC_TYPE, 23, struct lov_user_mds_data *)
311 #define MAX_OBD_NAME 128 /* If this changes, a NEW ioctl must be added */
313 /* Define O_LOV_DELAY_CREATE to be a mask that is not useful for regular
314 * files, but are unlikely to be used in practice and are not harmful if
315 * used incorrectly. O_NOCTTY and FASYNC are only meaningful for character
316 * devices and are safe for use on new files. See LU-4209. */
317 /* To be compatible with old statically linked binary we keep the check for
318 * the older 0100000000 flag. This is already removed upstream. LU-812. */
319 #define O_LOV_DELAY_CREATE_1_8 0100000000 /* FMODE_NONOTIFY masked in 2.6.36 */
320 #define O_LOV_DELAY_CREATE_MASK (O_NOCTTY | FASYNC)
321 #define O_LOV_DELAY_CREATE (O_LOV_DELAY_CREATE_1_8 | \
322 O_LOV_DELAY_CREATE_MASK)
324 #define LL_FILE_IGNORE_LOCK 0x00000001
325 #define LL_FILE_GROUP_LOCKED 0x00000002
326 #define LL_FILE_READAHEA 0x00000004
327 #define LL_FILE_LOCKED_DIRECTIO 0x00000008 /* client-side locks with dio */
328 #define LL_FILE_LOCKLESS_IO 0x00000010 /* server-side locks with cio */
330 #define LOV_USER_MAGIC_V1 0x0BD10BD0
331 #define LOV_USER_MAGIC LOV_USER_MAGIC_V1
332 #define LOV_USER_MAGIC_JOIN_V1 0x0BD20BD0
333 #define LOV_USER_MAGIC_V3 0x0BD30BD0
334 /* 0x0BD40BD0 is occupied by LOV_MAGIC_MIGRATE */
335 #define LOV_USER_MAGIC_SPECIFIC 0x0BD50BD0 /* for specific OSTs */
337 #define LMV_USER_MAGIC 0x0CD30CD0 /*default lmv magic*/
339 #define LOV_PATTERN_RAID0 0x001
340 #define LOV_PATTERN_RAID1 0x002
341 #define LOV_PATTERN_FIRST 0x100
342 #define LOV_PATTERN_CMOBD 0x200
344 #define LOV_PATTERN_F_MASK 0xffff0000
345 #define LOV_PATTERN_F_HOLE 0x40000000 /* there is hole in LOV EA */
346 #define LOV_PATTERN_F_RELEASED 0x80000000 /* HSM released file */
348 #define LOV_MAXPOOLNAME 15
349 #define LOV_POOLNAMEF "%.15s"
351 #define LOV_MIN_STRIPE_BITS 16 /* maximum PAGE_SIZE (ia64), power of 2 */
352 #define LOV_MIN_STRIPE_SIZE (1 << LOV_MIN_STRIPE_BITS)
353 #define LOV_MAX_STRIPE_COUNT_OLD 160
354 /* This calculation is crafted so that input of 4096 will result in 160
355 * which in turn is equal to old maximal stripe count.
356 * XXX: In fact this is too simpified for now, what it also need is to get
357 * ea_type argument to clearly know how much space each stripe consumes.
359 * The limit of 12 pages is somewhat arbitrary, but is a reasonably large
360 * allocation that is sufficient for the current generation of systems.
362 * (max buffer size - lov+rpc header) / sizeof(struct lov_ost_data_v1) */
363 #define LOV_MAX_STRIPE_COUNT 2000 /* ((12 * 4096 - 256) / 24) */
364 #define LOV_ALL_STRIPES 0xffff /* only valid for directories */
365 #define LOV_V1_INSANE_STRIPE_COUNT 65532 /* maximum stripe count bz13933 */
367 #define XATTR_LUSTRE_PREFIX "lustre."
368 #define XATTR_LUSTRE_LOV XATTR_LUSTRE_PREFIX"lov"
370 #define lov_user_ost_data lov_user_ost_data_v1
371 struct lov_user_ost_data_v1 { /* per-stripe data structure */
372 struct ost_id l_ost_oi; /* OST object ID */
373 __u32 l_ost_gen; /* generation of this OST index */
374 __u32 l_ost_idx; /* OST index in LOV */
375 } __attribute__((packed));
377 #define lov_user_md lov_user_md_v1
378 struct lov_user_md_v1 { /* LOV EA user data (host-endian) */
379 __u32 lmm_magic; /* magic number = LOV_USER_MAGIC_V1 */
380 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
381 struct ost_id lmm_oi; /* MDT parent inode id/seq (id/0 for 1.x) */
382 __u32 lmm_stripe_size; /* size of stripe in bytes */
383 __u16 lmm_stripe_count; /* num stripes in use for this object */
385 __u16 lmm_stripe_offset; /* starting stripe offset in
386 * lmm_objects, use when writing */
387 __u16 lmm_layout_gen; /* layout generation number
388 * used when reading */
390 struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
391 } __attribute__((packed, __may_alias__));
393 struct lov_user_md_v3 { /* LOV EA user data (host-endian) */
394 __u32 lmm_magic; /* magic number = LOV_USER_MAGIC_V3 */
395 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
396 struct ost_id lmm_oi; /* MDT parent inode id/seq (id/0 for 1.x) */
397 __u32 lmm_stripe_size; /* size of stripe in bytes */
398 __u16 lmm_stripe_count; /* num stripes in use for this object */
400 __u16 lmm_stripe_offset; /* starting stripe offset in
401 * lmm_objects, use when writing */
402 __u16 lmm_layout_gen; /* layout generation number
403 * used when reading */
405 char lmm_pool_name[LOV_MAXPOOLNAME + 1]; /* pool name */
406 struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
407 } __attribute__((packed));
409 static inline __u32 lov_user_md_size(__u16 stripes, __u32 lmm_magic)
411 if (lmm_magic == LOV_USER_MAGIC_V1)
412 return sizeof(struct lov_user_md_v1) +
413 stripes * sizeof(struct lov_user_ost_data_v1);
414 return sizeof(struct lov_user_md_v3) +
415 stripes * sizeof(struct lov_user_ost_data_v1);
418 /* Compile with -D_LARGEFILE64_SOURCE or -D_GNU_SOURCE (or #define) to
419 * use this. It is unsafe to #define those values in this header as it
420 * is possible the application has already #included <sys/stat.h>. */
421 #ifdef HAVE_LOV_USER_MDS_DATA
422 #define lov_user_mds_data lov_user_mds_data_v1
423 struct lov_user_mds_data_v1 {
424 lstat_t lmd_st; /* MDS stat struct */
425 struct lov_user_md_v1 lmd_lmm; /* LOV EA V1 user data */
426 } __attribute__((packed));
428 struct lov_user_mds_data_v3 {
429 lstat_t lmd_st; /* MDS stat struct */
430 struct lov_user_md_v3 lmd_lmm; /* LOV EA V3 user data */
431 } __attribute__((packed));
434 struct lmv_user_mds_data {
435 struct lu_fid lum_fid;
441 LMV_HASH_TYPE_UNKNOWN = 0, /* 0 is reserved for testing purpose */
442 LMV_HASH_TYPE_ALL_CHARS = 1,
443 LMV_HASH_TYPE_FNV_1A_64 = 2,
447 #define LMV_HASH_NAME_ALL_CHARS "all_char"
448 #define LMV_HASH_NAME_FNV_1A_64 "fnv_1a_64"
450 extern char *mdt_hash_name[LMV_HASH_TYPE_MAX];
452 /* Got this according to how get LOV_MAX_STRIPE_COUNT, see above,
453 * (max buffer size - lmv+rpc header) / sizeof(struct lmv_user_mds_data) */
454 #define LMV_MAX_STRIPE_COUNT 2000 /* ((12 * 4096 - 256) / 24) */
455 #define lmv_user_md lmv_user_md_v1
456 struct lmv_user_md_v1 {
457 __u32 lum_magic; /* must be the first field */
458 __u32 lum_stripe_count; /* dirstripe count */
459 __u32 lum_stripe_offset; /* MDT idx for default dirstripe */
460 __u32 lum_hash_type; /* Dir stripe policy */
461 __u32 lum_type; /* LMV type: default or normal */
465 char lum_pool_name[LOV_MAXPOOLNAME + 1];
466 struct lmv_user_mds_data lum_objects[0];
467 } __attribute__((packed));
469 static inline int lmv_user_md_size(int stripes, int lmm_magic)
471 return sizeof(struct lmv_user_md) +
472 stripes * sizeof(struct lmv_user_mds_data);
475 struct ll_recreate_obj {
481 __u64 id; /* holds object id */
482 __u32 generation; /* holds object generation */
483 __u32 f_type; /* holds object type or stripe idx when passing it to
484 * OST for saving into EA. */
492 static inline bool obd_uuid_equals(const struct obd_uuid *u1,
493 const struct obd_uuid *u2)
495 return strcmp((char *)u1->uuid, (char *)u2->uuid) == 0;
498 static inline int obd_uuid_empty(struct obd_uuid *uuid)
500 return uuid->uuid[0] == '\0';
503 static inline void obd_str2uuid(struct obd_uuid *uuid, const char *tmp)
505 strncpy((char *)uuid->uuid, tmp, sizeof(*uuid));
506 uuid->uuid[sizeof(*uuid) - 1] = '\0';
509 /* For printf's only, make sure uuid is terminated */
510 static inline char *obd_uuid2str(const struct obd_uuid *uuid)
515 if (uuid->uuid[sizeof(*uuid) - 1] != '\0') {
516 /* Obviously not safe, but for printfs, no real harm done...
517 we're always null-terminated, even in a race. */
518 static char temp[sizeof(*uuid)];
519 memcpy(temp, uuid->uuid, sizeof(*uuid) - 1);
520 temp[sizeof(*uuid) - 1] = '\0';
523 return (char *)(uuid->uuid);
526 /* Extract fsname from uuid (or target name) of a target
527 e.g. (myfs-OST0007_UUID -> myfs)
528 see also deuuidify. */
529 static inline void obd_uuid2fsname(char *buf, char *uuid, int buflen)
533 strncpy(buf, uuid, buflen - 1);
534 buf[buflen - 1] = '\0';
535 p = strrchr(buf, '-');
540 /* printf display format for Lustre FIDs
541 * usage: printf("file FID is "DFID"\n", PFID(fid)); */
542 #define FID_NOBRACE_LEN 40
543 #define FID_LEN (FID_NOBRACE_LEN + 2)
544 #define DFID_NOBRACE "%#llx:0x%x:0x%x"
545 #define DFID "["DFID_NOBRACE"]"
546 #define PFID(fid) (unsigned long long)(fid)->f_seq, (fid)->f_oid, (fid)->f_ver
548 /* scanf input parse format for fids in DFID_NOBRACE format
549 * Need to strip '[' from DFID format first or use "["SFID"]" at caller.
550 * usage: sscanf(fidstr, SFID, RFID(&fid)); */
551 #define SFID "0x%llx:0x%x:0x%x"
552 #define RFID(fid) &((fid)->f_seq), &((fid)->f_oid), &((fid)->f_ver)
554 /********* Quotas **********/
556 #define LUSTRE_QUOTABLOCK_BITS 10
557 #define LUSTRE_QUOTABLOCK_SIZE (1 << LUSTRE_QUOTABLOCK_BITS)
559 static inline __u64 lustre_stoqb(size_t space)
561 return (space + LUSTRE_QUOTABLOCK_SIZE - 1) >> LUSTRE_QUOTABLOCK_BITS;
564 #define Q_QUOTACHECK 0x800100 /* deprecated as of 2.4 */
565 #define Q_INITQUOTA 0x800101 /* deprecated as of 2.4 */
566 #define Q_GETOINFO 0x800102 /* get obd quota info */
567 #define Q_GETOQUOTA 0x800103 /* get obd quotas */
568 #define Q_FINVALIDATE 0x800104 /* deprecated as of 2.4 */
570 /* these must be explicitly translated into linux Q_* in ll_dir_ioctl */
571 #define LUSTRE_Q_QUOTAON 0x800002 /* deprecated as of 2.4 */
572 #define LUSTRE_Q_QUOTAOFF 0x800003 /* deprecated as of 2.4 */
573 #define LUSTRE_Q_GETINFO 0x800005 /* get information about quota files */
574 #define LUSTRE_Q_SETINFO 0x800006 /* set information about quota files */
575 #define LUSTRE_Q_GETQUOTA 0x800007 /* get user quota structure */
576 #define LUSTRE_Q_SETQUOTA 0x800008 /* set user quota structure */
577 /* lustre-specific control commands */
578 #define LUSTRE_Q_INVALIDATE 0x80000b /* deprecated as of 2.4 */
579 #define LUSTRE_Q_FINVALIDATE 0x80000c /* deprecated as of 2.4 */
581 #define UGQUOTA 2 /* set both USRQUOTA and GRPQUOTA */
583 #define IDENTITY_DOWNCALL_MAGIC 0x6d6dd629
586 #define N_PERMS_MAX 64
588 struct perm_downcall_data {
594 struct identity_downcall_data {
601 struct perm_downcall_data idd_perms[N_PERMS_MAX];
605 #ifdef NEED_QUOTA_DEFS
607 #define QIF_BLIMITS 1
609 #define QIF_ILIMITS 4
613 #define QIF_LIMITS (QIF_BLIMITS | QIF_ILIMITS)
614 #define QIF_USAGE (QIF_SPACE | QIF_INODES)
615 #define QIF_TIMES (QIF_BTIME | QIF_ITIME)
616 #define QIF_ALL (QIF_LIMITS | QIF_USAGE | QIF_TIMES)
619 #endif /* !__KERNEL__ */
621 /* lustre volatile file support
622 * file name header: .^L^S^T^R:volatile"
624 #define LUSTRE_VOLATILE_HDR ".\x0c\x13\x14\x12:VOLATILE"
625 #define LUSTRE_VOLATILE_HDR_LEN 14
627 typedef enum lustre_quota_version {
629 } lustre_quota_version_t;
631 /* XXX: same as if_dqinfo struct in kernel */
639 /* XXX: same as if_dqblk struct in kernel, plus one padding */
641 __u64 dqb_bhardlimit;
642 __u64 dqb_bsoftlimit;
644 __u64 dqb_ihardlimit;
645 __u64 dqb_isoftlimit;
667 struct obd_dqinfo qc_dqinfo;
668 struct obd_dqblk qc_dqblk;
670 struct obd_uuid obd_uuid;
673 /* swap layout flags */
674 #define SWAP_LAYOUTS_CHECK_DV1 (1 << 0)
675 #define SWAP_LAYOUTS_CHECK_DV2 (1 << 1)
676 #define SWAP_LAYOUTS_KEEP_MTIME (1 << 2)
677 #define SWAP_LAYOUTS_KEEP_ATIME (1 << 3)
678 #define SWAP_LAYOUTS_CLOSE (1 << 4)
680 /* Swap XATTR_NAME_HSM as well, only on the MDT so far */
681 #define SWAP_LAYOUTS_MDS_HSM (1 << 31)
682 struct lustre_swap_layouts {
691 /********* Changelogs **********/
692 /** Changelog record types */
693 enum changelog_rec_type {
695 CL_CREATE = 1, /* namespace */
696 CL_MKDIR = 2, /* namespace */
697 CL_HARDLINK = 3, /* namespace */
698 CL_SOFTLINK = 4, /* namespace */
699 CL_MKNOD = 5, /* namespace */
700 CL_UNLINK = 6, /* namespace */
701 CL_RMDIR = 7, /* namespace */
702 CL_RENAME = 8, /* namespace */
703 CL_EXT = 9, /* namespace extended record (2nd half of rename) */
704 CL_OPEN = 10, /* not currently used */
705 CL_CLOSE = 11, /* may be written to log only with mtime change */
706 CL_LAYOUT = 12, /* file layout/striping modified */
710 CL_HSM = 16, /* HSM specific events, see flags */
711 CL_MTIME = 17, /* Precedence: setattr > mtime > ctime > atime */
718 static inline const char *changelog_type2str(int type) {
719 static const char *changelog_str[] = {
720 "MARK", "CREAT", "MKDIR", "HLINK", "SLINK", "MKNOD", "UNLNK",
721 "RMDIR", "RENME", "RNMTO", "OPEN", "CLOSE", "LYOUT", "TRUNC",
722 "SATTR", "XATTR", "HSM", "MTIME", "CTIME", "ATIME", "MIGRT"
725 if (type >= 0 && type < CL_LAST)
726 return changelog_str[type];
730 /* per-record flags */
731 #define CLF_FLAGSHIFT 12
732 #define CLF_FLAGMASK ((1U << CLF_FLAGSHIFT) - 1)
733 #define CLF_VERMASK (~CLF_FLAGMASK)
734 enum changelog_rec_flags {
735 CLF_VERSION = 0x1000,
738 CLF_SUPPORTED = CLF_VERSION | CLF_RENAME | CLF_JOBID
742 /* Anything under the flagmask may be per-type (if desired) */
743 /* Flags for unlink */
744 #define CLF_UNLINK_LAST 0x0001 /* Unlink of last hardlink */
745 #define CLF_UNLINK_HSM_EXISTS 0x0002 /* File has something in HSM */
746 /* HSM cleaning needed */
747 /* Flags for rename */
748 #define CLF_RENAME_LAST 0x0001 /* rename unlink last hardlink
750 #define CLF_RENAME_LAST_EXISTS 0x0002 /* rename unlink last hardlink of target
751 * has an archive in backend */
754 /* 12b used (from high weight to low weight):
759 #define CLF_HSM_ERR_L 0 /* HSM return code, 7 bits */
760 #define CLF_HSM_ERR_H 6
761 #define CLF_HSM_EVENT_L 7 /* HSM event, 3 bits, see enum hsm_event */
762 #define CLF_HSM_EVENT_H 9
763 #define CLF_HSM_FLAG_L 10 /* HSM flags, 2 bits, 1 used, 1 spare */
764 #define CLF_HSM_FLAG_H 11
765 #define CLF_HSM_SPARE_L 12 /* 4 spare bits */
766 #define CLF_HSM_SPARE_H 15
767 #define CLF_HSM_LAST 15
769 /* Remove bits higher than _h, then extract the value
770 * between _h and _l by shifting lower weigth to bit 0. */
771 #define CLF_GET_BITS(_b, _h, _l) (((_b << (CLF_HSM_LAST - _h)) & 0xFFFF) \
772 >> (CLF_HSM_LAST - _h + _l))
774 #define CLF_HSM_SUCCESS 0x00
775 #define CLF_HSM_MAXERROR 0x7E
776 #define CLF_HSM_ERROVERFLOW 0x7F
778 #define CLF_HSM_DIRTY 1 /* file is dirty after HSM request end */
780 /* 3 bits field => 8 values allowed */
792 static inline enum hsm_event hsm_get_cl_event(__u16 flags)
794 return (enum hsm_event)CLF_GET_BITS(flags, CLF_HSM_EVENT_H,
798 static inline void hsm_set_cl_event(int *flags, enum hsm_event he)
800 *flags |= (he << CLF_HSM_EVENT_L);
803 static inline __u16 hsm_get_cl_flags(int flags)
805 return CLF_GET_BITS(flags, CLF_HSM_FLAG_H, CLF_HSM_FLAG_L);
808 static inline void hsm_set_cl_flags(int *flags, int bits)
810 *flags |= (bits << CLF_HSM_FLAG_L);
813 static inline int hsm_get_cl_error(int flags)
815 return CLF_GET_BITS(flags, CLF_HSM_ERR_H, CLF_HSM_ERR_L);
818 static inline void hsm_set_cl_error(int *flags, int error)
820 *flags |= (error << CLF_HSM_ERR_L);
823 enum changelog_send_flag {
824 /* Not yet implemented */
825 CHANGELOG_FLAG_FOLLOW = 0x01,
826 /* Blocking IO makes sense in case of slow user parsing of the records,
827 * but it also prevents us from cleaning up if the records are not
829 CHANGELOG_FLAG_BLOCK = 0x02,
830 /* Pack jobid into the changelog records if available. */
831 CHANGELOG_FLAG_JOBID = 0x04,
834 #define CR_MAXSIZE cfs_size_round(2 * NAME_MAX + 2 + \
835 changelog_rec_offset(CLF_SUPPORTED))
837 /* 31 usable bytes string + null terminator. */
838 #define LUSTRE_JOBID_SIZE 32
840 /* This is the minimal changelog record. It can contain extensions
841 * such as rename fields or process jobid. Its exact content is described
844 * Extensions are packed in the same order as their corresponding flags.
846 struct changelog_rec {
848 __u16 cr_flags; /**< \a changelog_rec_flags */
849 __u32 cr_type; /**< \a changelog_rec_type */
850 __u64 cr_index; /**< changelog record number */
851 __u64 cr_prev; /**< last index for this target fid */
854 lustre_fid cr_tfid; /**< target fid */
855 __u32 cr_markerflags; /**< CL_MARK flags */
857 lustre_fid cr_pfid; /**< parent fid */
860 /* Changelog extension for RENAME. */
861 struct changelog_ext_rename {
862 lustre_fid cr_sfid; /**< source fid, or zero */
863 lustre_fid cr_spfid; /**< source parent fid, or zero */
866 /* Changelog extension to include JOBID. */
867 struct changelog_ext_jobid {
868 char cr_jobid[LUSTRE_JOBID_SIZE]; /**< zero-terminated string. */
872 static inline size_t changelog_rec_offset(enum changelog_rec_flags crf)
874 size_t size = sizeof(struct changelog_rec);
876 if (crf & CLF_RENAME)
877 size += sizeof(struct changelog_ext_rename);
880 size += sizeof(struct changelog_ext_jobid);
885 static inline size_t changelog_rec_size(const struct changelog_rec *rec)
887 return changelog_rec_offset(rec->cr_flags);
890 static inline size_t changelog_rec_varsize(const struct changelog_rec *rec)
892 return changelog_rec_size(rec) - sizeof(*rec) + rec->cr_namelen;
896 struct changelog_ext_rename *changelog_rec_rename(const struct changelog_rec *rec)
898 enum changelog_rec_flags crf = rec->cr_flags & CLF_VERSION;
900 return (struct changelog_ext_rename *)((char *)rec +
901 changelog_rec_offset(crf));
904 /* The jobid follows the rename extension, if present */
906 struct changelog_ext_jobid *changelog_rec_jobid(const struct changelog_rec *rec)
908 enum changelog_rec_flags crf = rec->cr_flags &
909 (CLF_VERSION | CLF_RENAME);
911 return (struct changelog_ext_jobid *)((char *)rec +
912 changelog_rec_offset(crf));
915 /* The name follows the rename and jobid extensions, if present */
916 static inline char *changelog_rec_name(const struct changelog_rec *rec)
918 return (char *)rec + changelog_rec_offset(rec->cr_flags &
922 static inline size_t changelog_rec_snamelen(const struct changelog_rec *rec)
924 return rec->cr_namelen - strlen(changelog_rec_name(rec)) - 1;
927 static inline char *changelog_rec_sname(const struct changelog_rec *rec)
929 char *cr_name = changelog_rec_name(rec);
931 return cr_name + strlen(cr_name) + 1;
935 * Remap a record to the desired format as specified by the crf flags.
936 * The record must be big enough to contain the final remapped version.
937 * Superfluous extension fields are removed and missing ones are added
938 * and zeroed. The flags of the record are updated accordingly.
940 * The jobid and rename extensions can be added to a record, to match the
941 * format an application expects, typically. In this case, the newly added
942 * fields will be zeroed.
943 * The Jobid field can be removed, to guarantee compatibility with older
944 * clients that don't expect this field in the records they process.
946 * The following assumptions are being made:
947 * - CLF_RENAME will not be removed
948 * - CLF_JOBID will not be added without CLF_RENAME being added too
950 * @param[in,out] rec The record to remap.
951 * @param[in] crf_wanted Flags describing the desired extensions.
953 static inline void changelog_remap_rec(struct changelog_rec *rec,
954 enum changelog_rec_flags crf_wanted)
959 crf_wanted &= CLF_SUPPORTED;
961 if ((rec->cr_flags & CLF_SUPPORTED) == crf_wanted)
964 /* First move the variable-length name field */
965 memmove((char *)rec + changelog_rec_offset(crf_wanted),
966 changelog_rec_name(rec), rec->cr_namelen);
968 /* Locations of jobid and rename extensions in the remapped record */
969 jid_mov = (char *)rec +
970 changelog_rec_offset(crf_wanted & ~CLF_JOBID);
971 rnm_mov = (char *)rec +
972 changelog_rec_offset(crf_wanted & ~(CLF_JOBID | CLF_RENAME));
974 /* Move the extension fields to the desired positions */
975 if ((crf_wanted & CLF_JOBID) && (rec->cr_flags & CLF_JOBID))
976 memmove(jid_mov, changelog_rec_jobid(rec),
977 sizeof(struct changelog_ext_jobid));
979 if ((crf_wanted & CLF_RENAME) && (rec->cr_flags & CLF_RENAME))
980 memmove(rnm_mov, changelog_rec_rename(rec),
981 sizeof(struct changelog_ext_rename));
983 /* Clear newly added fields */
984 if ((crf_wanted & CLF_JOBID) && !(rec->cr_flags & CLF_JOBID))
985 memset(jid_mov, 0, sizeof(struct changelog_ext_jobid));
987 if ((crf_wanted & CLF_RENAME) && !(rec->cr_flags & CLF_RENAME))
988 memset(rnm_mov, 0, sizeof(struct changelog_ext_rename));
990 /* Update the record's flags accordingly */
991 rec->cr_flags = (rec->cr_flags & CLF_FLAGMASK) | crf_wanted;
994 struct ioc_changelog {
1001 enum changelog_message_type {
1002 CL_RECORD = 10, /* message is a changelog_rec */
1003 CL_EOF = 11, /* at end of current changelog */
1006 /********* Misc **********/
1008 struct ioc_data_version {
1010 __u64 idv_flags; /* See LL_DV_xxx */
1012 #define LL_DV_RD_FLUSH (1 << 0) /* Flush dirty pages from clients */
1013 #define LL_DV_WR_FLUSH (1 << 1) /* Flush all caching pages from clients */
1016 #define offsetof(typ, memb) ((unsigned long)((char *)&(((typ *)0)->memb)))
1019 #define dot_lustre_name ".lustre"
1022 /********* HSM **********/
1024 /** HSM per-file state
1025 * See HSM_FLAGS below.
1028 HS_NONE = 0x00000000,
1029 HS_EXISTS = 0x00000001,
1030 HS_DIRTY = 0x00000002,
1031 HS_RELEASED = 0x00000004,
1032 HS_ARCHIVED = 0x00000008,
1033 HS_NORELEASE = 0x00000010,
1034 HS_NOARCHIVE = 0x00000020,
1035 HS_LOST = 0x00000040,
1038 /* HSM user-setable flags. */
1039 #define HSM_USER_MASK (HS_NORELEASE | HS_NOARCHIVE | HS_DIRTY)
1041 /* Other HSM flags. */
1042 #define HSM_STATUS_MASK (HS_EXISTS | HS_LOST | HS_RELEASED | HS_ARCHIVED)
1045 * All HSM-related possible flags that could be applied to a file.
1046 * This should be kept in sync with hsm_states.
1048 #define HSM_FLAGS_MASK (HSM_USER_MASK | HSM_STATUS_MASK)
1051 * HSMÂ request progress state
1053 enum hsm_progress_states {
1060 static inline const char *hsm_progress_state2name(enum hsm_progress_states s)
1063 case HPS_WAITING: return "waiting";
1064 case HPS_RUNNING: return "running";
1065 case HPS_DONE: return "done";
1066 default: return "unknown";
1073 } __attribute__((packed));
1076 * Current HSM states of a Lustre file.
1078 * This structure purpose is to be sent to user-space mainly. It describes the
1079 * current HSM flags and in-progress action.
1081 struct hsm_user_state {
1082 /** Current HSM states, from enum hsm_states. */
1084 __u32 hus_archive_id;
1085 /** The current undergoing action, if there is one */
1086 __u32 hus_in_progress_state;
1087 __u32 hus_in_progress_action;
1088 struct hsm_extent hus_in_progress_location;
1089 char hus_extended_info[];
1092 struct hsm_state_set_ioc {
1093 struct lu_fid hssi_fid;
1095 __u64 hssi_clearmask;
1099 * This structure describes the current in-progress action for a file.
1100 * it is retuned to user space and send over the wire
1102 struct hsm_current_action {
1103 /** The current undergoing action, if there is one */
1104 /* state is one of hsm_progress_states */
1106 /* action is one of hsm_user_action */
1108 struct hsm_extent hca_location;
1111 /***** HSM user requests ******/
1112 /* User-generated (lfs/ioctl) request types */
1113 enum hsm_user_action {
1114 HUA_NONE = 1, /* no action (noop) */
1115 HUA_ARCHIVE = 10, /* copy to hsm */
1116 HUA_RESTORE = 11, /* prestage */
1117 HUA_RELEASE = 12, /* drop ost objects */
1118 HUA_REMOVE = 13, /* remove from archive */
1119 HUA_CANCEL = 14 /* cancel a request */
1122 static inline const char *hsm_user_action2name(enum hsm_user_action a)
1125 case HUA_NONE: return "NOOP";
1126 case HUA_ARCHIVE: return "ARCHIVE";
1127 case HUA_RESTORE: return "RESTORE";
1128 case HUA_RELEASE: return "RELEASE";
1129 case HUA_REMOVE: return "REMOVE";
1130 case HUA_CANCEL: return "CANCEL";
1131 default: return "UNKNOWN";
1136 * List of hr_flags (bit field)
1138 #define HSM_FORCE_ACTION 0x0001
1139 /* used by CT, cannot be set by user */
1140 #define HSM_GHOST_COPY 0x0002
1143 * Contains all the fixed part of struct hsm_user_request.
1146 struct hsm_request {
1147 __u32 hr_action; /* enum hsm_user_action */
1148 __u32 hr_archive_id; /* archive id, used only with HUA_ARCHIVE */
1149 __u64 hr_flags; /* request flags */
1150 __u32 hr_itemcount; /* item count in hur_user_item vector */
1154 struct hsm_user_item {
1156 struct hsm_extent hui_extent;
1157 } __attribute__((packed));
1159 struct hsm_user_request {
1160 struct hsm_request hur_request;
1161 struct hsm_user_item hur_user_item[0];
1162 /* extra data blob at end of struct (after all
1163 * hur_user_items), only use helpers to access it
1165 } __attribute__((packed));
1167 /** Return pointer to data field in a hsm user request */
1168 static inline void *hur_data(struct hsm_user_request *hur)
1170 return &(hur->hur_user_item[hur->hur_request.hr_itemcount]);
1174 * Compute the current length of the provided hsm_user_request. This returns -1
1175 * instead of an errno because ssize_t is defined to be only [ -1, SSIZE_MAX ]
1177 * return -1 on bounds check error.
1179 static inline ssize_t hur_len(struct hsm_user_request *hur)
1183 /* can't overflow a __u64 since hr_itemcount is only __u32 */
1184 size = offsetof(struct hsm_user_request, hur_user_item[0]) +
1185 (__u64)hur->hur_request.hr_itemcount *
1186 sizeof(hur->hur_user_item[0]) + hur->hur_request.hr_data_len;
1188 if (size != (ssize_t)size)
1194 /****** HSM RPCs to copytool *****/
1195 /* Message types the copytool may receive */
1196 enum hsm_message_type {
1197 HMT_ACTION_LIST = 100, /* message is a hsm_action_list */
1200 /* Actions the copytool may be instructed to take for a given action_item */
1201 enum hsm_copytool_action {
1202 HSMA_NONE = 10, /* no action */
1203 HSMA_ARCHIVE = 20, /* arbitrary offset */
1209 static inline const char *hsm_copytool_action2name(enum hsm_copytool_action a)
1212 case HSMA_NONE: return "NOOP";
1213 case HSMA_ARCHIVE: return "ARCHIVE";
1214 case HSMA_RESTORE: return "RESTORE";
1215 case HSMA_REMOVE: return "REMOVE";
1216 case HSMA_CANCEL: return "CANCEL";
1217 default: return "UNKNOWN";
1221 /* Copytool item action description */
1222 struct hsm_action_item {
1223 __u32 hai_len; /* valid size of this struct */
1224 __u32 hai_action; /* hsm_copytool_action, but use known size */
1225 lustre_fid hai_fid; /* Lustre FID to operate on */
1226 lustre_fid hai_dfid; /* fid used for data access */
1227 struct hsm_extent hai_extent; /* byte range to operate on */
1228 __u64 hai_cookie; /* action cookie from coordinator */
1229 __u64 hai_gid; /* grouplock id */
1230 char hai_data[0]; /* variable length */
1231 } __attribute__((packed));
1234 * helper function which print in hexa the first bytes of
1237 * \param hai [IN] record to print
1238 * \param buffer [IN,OUT] buffer to write the hex string to
1239 * \param len [IN] max buffer length
1243 static inline char *hai_dump_data_field(const struct hsm_action_item *hai,
1244 char *buffer, size_t len)
1251 data_len = hai->hai_len - sizeof(*hai);
1252 for (i = 0; (i < data_len) && (len > 2); i++) {
1253 snprintf(ptr, 3, "%02X", (unsigned char)hai->hai_data[i]);
1263 /* Copytool action list */
1264 #define HAL_VERSION 1
1265 #define HAL_MAXSIZE LNET_MTU /* bytes, used in userspace only */
1266 struct hsm_action_list {
1268 __u32 hal_count; /* number of hai's to follow */
1269 __u64 hal_compound_id; /* returned by coordinator */
1271 __u32 hal_archive_id; /* which archive backend */
1273 char hal_fsname[0]; /* null-terminated */
1274 /* struct hsm_action_item[hal_count] follows, aligned on 8-byte
1275 boundaries. See hai_zero */
1276 } __attribute__((packed));
1278 #ifndef HAVE_CFS_SIZE_ROUND
1279 static inline int cfs_size_round (int val)
1281 return (val + 7) & (~0x7);
1283 #define HAVE_CFS_SIZE_ROUND
1286 /* Return pointer to first hai in action list */
1287 static inline struct hsm_action_item *hai_first(struct hsm_action_list *hal)
1289 return (struct hsm_action_item *)(hal->hal_fsname +
1290 cfs_size_round(strlen(hal-> \
1294 /* Return pointer to next hai */
1295 static inline struct hsm_action_item * hai_next(struct hsm_action_item *hai)
1297 return (struct hsm_action_item *)((char *)hai +
1298 cfs_size_round(hai->hai_len));
1301 /* Return size of an hsm_action_list */
1302 static inline size_t hal_size(struct hsm_action_list *hal)
1306 struct hsm_action_item *hai;
1308 sz = sizeof(*hal) + cfs_size_round(strlen(hal->hal_fsname) + 1);
1309 hai = hai_first(hal);
1310 for (i = 0; i < hal->hal_count ; i++, hai = hai_next(hai))
1311 sz += cfs_size_round(hai->hai_len);
1317 * describe the attributes to be set on imported file
1319 struct hsm_user_import {
1328 __u32 hui_archive_id;
1331 /* Copytool progress reporting */
1332 #define HP_FLAG_COMPLETED 0x01
1333 #define HP_FLAG_RETRY 0x02
1335 struct hsm_progress {
1338 struct hsm_extent hp_extent;
1340 __u16 hp_errval; /* positive val */
1345 __u64 hc_data_version;
1347 __u16 hc_errval; /* positive val */
1349 struct hsm_action_item hc_hai;
1353 enum llapi_json_types {
1354 LLAPI_JSON_INTEGER = 1,
1360 struct llapi_json_item {
1369 struct llapi_json_item *lji_next;
1372 struct llapi_json_item_list {
1373 int ljil_item_count;
1374 struct llapi_json_item *ljil_items;
1377 enum lu_ladvise_type {
1378 LU_LADVISE_INVALID = 0,
1379 LU_LADVISE_WILLREAD = 1,
1380 LU_LADVISE_DONTNEED = 2,
1383 #define LU_LADVISE_NAMES { \
1384 [LU_LADVISE_WILLREAD] = "willread", \
1385 [LU_LADVISE_DONTNEED] = "dontneed", \
1388 /* This is the userspace argument for ladvise. It is currently the same as
1389 * what goes on the wire (struct lu_ladvise), but is defined separately as we
1390 * may need info which is only used locally. */
1391 struct llapi_lu_ladvise {
1392 __u16 lla_advice; /* advice type */
1393 __u16 lla_value1; /* values for different advice types */
1395 __u64 lla_start; /* first byte of extent for advice */
1396 __u64 lla_end; /* last byte of extent for advice */
1402 LF_ASYNC = 0x00000001,
1405 #define LADVISE_MAGIC 0x1ADF1CE0
1406 #define LF_MASK LF_ASYNC
1408 /* This is the userspace argument for ladvise, corresponds to ladvise_hdr which
1409 * is used on the wire. It is defined separately as we may need info which is
1410 * only used locally. */
1411 struct llapi_ladvise_hdr {
1412 __u32 lah_magic; /* LADVISE_MAGIC */
1413 __u32 lah_count; /* number of advices */
1414 __u64 lah_flags; /* from enum ladvise_flag */
1415 __u32 lah_value1; /* unused */
1416 __u32 lah_value2; /* unused */
1417 __u64 lah_value3; /* unused */
1418 struct llapi_lu_ladvise lah_advise[0]; /* advices in this header */
1421 #define LAH_COUNT_MAX (1024)
1425 SK_CRYPT_INVALID = -1,
1427 SK_CRYPT_AES256_CTR = 1,
1432 SK_HMAC_INVALID = -1,
1439 struct sk_crypt_type {
1444 struct sk_hmac_type {
1449 /** @} lustreuser */
1450 #endif /* _LUSTRE_USER_H */