aboutsummaryrefslogtreecommitdiffstats
path: root/fs/xfs/xfs_fs.h
blob: 6dda3f949b04f5c8a9ad804d030c9b21f99b4d96 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
/*
 * Copyright (c) 1995-2005 Silicon Graphics, Inc.
 * All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it would be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write the Free Software Foundation,
 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
#ifndef __XFS_FS_H__
#define __XFS_FS_H__

/*
 * SGI's XFS filesystem's major stuff (constants, structures)
 */

/*
 * Direct I/O attribute record used with XFS_IOC_DIOINFO
 * d_miniosz is the min xfer size, xfer size multiple and file seek offset
 * alignment.
 */
#ifndef HAVE_DIOATTR
struct dioattr {
	__u32		d_mem;		/* data buffer memory alignment */
	__u32		d_miniosz;	/* min xfer size		*/
	__u32		d_maxiosz;	/* max xfer size		*/
};
#endif

/*
 * Structure for XFS_IOC_FSGETXATTR[A] and XFS_IOC_FSSETXATTR.
 */
#ifndef HAVE_FSXATTR
struct fsxattr {
	__u32		fsx_xflags;	/* xflags field value (get/set) */
	__u32		fsx_extsize;	/* extsize field value (get/set)*/
	__u32		fsx_nextents;	/* nextents field value (get)	*/
	__u32		fsx_projid;	/* project identifier (get/set) */
	unsigned char	fsx_pad[12];
};
#endif

/*
 * Flags for the bs_xflags/fsx_xflags field
 * There should be a one-to-one correspondence between these flags and the
 * XFS_DIFLAG_s.
 */
#define XFS_XFLAG_REALTIME	0x00000001	/* data in realtime volume */
#define XFS_XFLAG_PREALLOC	0x00000002	/* preallocated file extents */
#define XFS_XFLAG_IMMUTABLE	0x00000008	/* file cannot be modified */
#define XFS_XFLAG_APPEND	0x00000010	/* all writes append */
#define XFS_XFLAG_SYNC		0x00000020	/* all writes synchronous */
#define XFS_XFLAG_NOATIME	0x00000040	/* do not update access time */
#define XFS_XFLAG_NODUMP	0x00000080	/* do not include in backups */
#define XFS_XFLAG_RTINHERIT	0x00000100	/* create with rt bit set */
#define XFS_XFLAG_PROJINHERIT	0x00000200	/* create with parents projid */
#define XFS_XFLAG_NOSYMLINKS	0x00000400	/* disallow symlink creation */
#define XFS_XFLAG_EXTSIZE	0x00000800	/* extent size allocator hint */
#define XFS_XFLAG_EXTSZINHERIT	0x00001000	/* inherit inode extent size */
#define XFS_XFLAG_NODEFRAG	0x00002000  	/* do not defragment */
#define XFS_XFLAG_FILESTREAM	0x00004000	/* use filestream allocator */
#define XFS_XFLAG_HASATTR	0x80000000	/* no DIFLAG for this	*/

/*
 * Structure for XFS_IOC_GETBMAP.
 * On input, fill in bmv_offset and bmv_length of the first structure
 * to indicate the area of interest in the file, and bmv_entries with
 * the number of array elements given back.  The first structure is
 * updated on return to give the offset and length for the next call.
 */
#ifndef HAVE_GETBMAP
struct getbmap {
	__s64		bmv_offset;	/* file offset of segment in blocks */
	__s64		bmv_block;	/* starting block (64-bit daddr_t)  */
	__s64		bmv_length;	/* length of segment, blocks	    */
	__s32		bmv_count;	/* # of entries in array incl. 1st  */
	__s32		bmv_entries;	/* # of entries filled in (output)  */
};
#endif

/*
 *	Structure for XFS_IOC_GETBMAPX.	 Fields bmv_offset through bmv_entries
 *	are used exactly as in the getbmap structure.  The getbmapx structure
 *	has additional bmv_iflags and bmv_oflags fields. The bmv_iflags field
 *	is only used for the first structure.  It contains input flags
 *	specifying XFS_IOC_GETBMAPX actions.  The bmv_oflags field is filled
 *	in by the XFS_IOC_GETBMAPX command for each returned structure after
 *	the first.
 */
#ifndef HAVE_GETBMAPX
struct getbmapx {
	__s64		bmv_offset;	/* file offset of segment in blocks */
	__s64		bmv_block;	/* starting block (64-bit daddr_t)  */
	__s64		bmv_length;	/* length of segment, blocks	    */
	__s32		bmv_count;	/* # of entries in array incl. 1st  */
	__s32		bmv_entries;	/* # of entries filled in (output). */
	__s32		bmv_iflags;	/* input flags (1st structure)	    */
	__s32		bmv_oflags;	/* output flags (after 1st structure)*/
	__s32		bmv_unused1;	/* future use			    */
	__s32		bmv_unused2;	/* future use			    */
};
#endif

/*	bmv_iflags values - set by XFS_IOC_GETBMAPX caller.	*/
#define BMV_IF_ATTRFORK		0x1	/* return attr fork rather than data */
#define BMV_IF_NO_DMAPI_READ	0x2	/* Do not generate DMAPI read event  */
#define BMV_IF_PREALLOC		0x4	/* rtn status BMV_OF_PREALLOC if req */
#define BMV_IF_DELALLOC		0x8	/* rtn status BMV_OF_DELALLOC if req */
#define BMV_IF_NO_HOLES		0x10	/* Do not return holes */
#define BMV_IF_VALID	\
	(BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC|	\
	 BMV_IF_DELALLOC|BMV_IF_NO_HOLES)

/*	bmv_oflags values - returned for each non-header segment */
#define BMV_OF_PREALLOC		0x1	/* segment = unwritten pre-allocation */
#define BMV_OF_DELALLOC		0x2	/* segment = delayed allocation */
#define BMV_OF_LAST		0x4	/* segment is the last in the file */

/*
 * Structure for XFS_IOC_FSSETDM.
 * For use by backup and restore programs to set the XFS on-disk inode
 * fields di_dmevmask and di_dmstate.  These must be set to exactly and
 * only values previously obtained via xfs_bulkstat!  (Specifically the
 * xfs_bstat_t fields bs_dmevmask and bs_dmstate.)
 */
#ifndef HAVE_FSDMIDATA
struct fsdmidata {
	__u32		fsd_dmevmask;	/* corresponds to di_dmevmask */
	__u16		fsd_padding;
	__u16		fsd_dmstate;	/* corresponds to di_dmstate  */
};
#endif

/*
 * File segment locking set data type for 64 bit access.
 * Also used for all the RESV/FREE interfaces.
 */
typedef struct xfs_flock64 {
	__s16		l_type;
	__s16		l_whence;
	__s64		l_start;
	__s64		l_len;		/* len == 0 means until end of file */
	__s32		l_sysid;
	__u32		l_pid;
	__s32		l_pad[4];	/* reserve area			    */
} xfs_flock64_t;

/*
 * Output for XFS_IOC_FSGEOMETRY_V1
 */
typedef struct xfs_fsop_geom_v1 {
	__u32		blocksize;	/* filesystem (data) block size */
	__u32		rtextsize;	/* realtime extent size		*/
	__u32		agblocks;	/* fsblocks in an AG		*/
	__u32		agcount;	/* number of allocation groups	*/
	__u32		logblocks;	/* fsblocks in the log		*/
	__u32		sectsize;	/* (data) sector size, bytes	*/
	__u32		inodesize;	/* inode size in bytes		*/
	__u32		imaxpct;	/* max allowed inode space(%)	*/
	__u64		datablocks;	/* fsblocks in data subvolume	*/
	__u64		rtblocks;	/* fsblocks in realtime subvol	*/
	__u64		rtextents;	/* rt extents in realtime subvol*/
	__u64		logstart;	/* starting fsblock of the log	*/
	unsigned char	uuid[16];	/* unique id of the filesystem	*/
	__u32		sunit;		/* stripe unit, fsblocks	*/
	__u32		swidth;		/* stripe width, fsblocks	*/
	__s32		version;	/* structure version		*/
	__u32		flags;		/* superblock version flags	*/
	__u32		logsectsize;	/* log sector size, bytes	*/
	__u32		rtsectsize;	/* realtime sector size, bytes	*/
	__u32		dirblocksize;	/* directory block size, bytes	*/
} xfs_fsop_geom_v1_t;

/*
 * Output for XFS_IOC_FSGEOMETRY
 */
typedef struct xfs_fsop_geom {
	__u32		blocksize;	/* filesystem (data) block size */
	__u32		rtextsize;	/* realtime extent size		*/
	__u32		agblocks;	/* fsblocks in an AG		*/
	__u32		agcount;	/* number of allocation groups	*/
	__u32		logblocks;	/* fsblocks in the log		*/
	__u32		sectsize;	/* (data) sector size, bytes	*/
	__u32		inodesize;	/* inode size in bytes		*/
	__u32		imaxpct;	/* max allowed inode space(%)	*/
	__u64		datablocks;	/* fsblocks in data subvolume	*/
	__u64		rtblocks;	/* fsblocks in realtime subvol	*/
	__u64		rtextents;	/* rt extents in realtime subvol*/
	__u64		logstart;	/* starting fsblock of the log	*/
	unsigned char	uuid[16];	/* unique id of the filesystem	*/
	__u32		sunit;		/* stripe unit, fsblocks	*/
	__u32		swidth;		/* stripe width, fsblocks	*/
	__s32		version;	/* structure version		*/
	__u32		flags;		/* superblock version flags	*/
	__u32		logsectsize;	/* log sector size, bytes	*/
	__u32		rtsectsize;	/* realtime sector size, bytes	*/
	__u32		dirblocksize;	/* directory block size, bytes	*/
	__u32		logsunit;	/* log stripe unit, bytes */
} xfs_fsop_geom_t;

/* Output for XFS_FS_COUNTS */
typedef struct xfs_fsop_counts {
	__u64	freedata;	/* free data section blocks */
	__u64	freertx;	/* free rt extents */
	__u64	freeino;	/* free inodes */
	__u64	allocino;	/* total allocated inodes */
} xfs_fsop_counts_t;

/* Input/Output for XFS_GET_RESBLKS and XFS_SET_RESBLKS */
typedef struct xfs_fsop_resblks {
	__u64  resblks;
	__u64  resblks_avail;
} xfs_fsop_resblks_t;

#define XFS_FSOP_GEOM_VERSION	0

#define XFS_FSOP_GEOM_FLAGS_ATTR	0x0001	/* attributes in use	*/
#define XFS_FSOP_GEOM_FLAGS_NLINK	0x0002	/* 32-bit nlink values	*/
#define XFS_FSOP_GEOM_FLAGS_QUOTA	0x0004	/* quotas enabled	*/
#define XFS_FSOP_GEOM_FLAGS_IALIGN	0x0008	/* inode alignment	*/
#define XFS_FSOP_GEOM_FLAGS_DALIGN	0x0010	/* large data alignment */
#define XFS_FSOP_GEOM_FLAGS_SHARED	0x0020	/* read-only shared	*/
#define XFS_FSOP_GEOM_FLAGS_EXTFLG	0x0040	/* special extent flag	*/
#define XFS_FSOP_GEOM_FLAGS_DIRV2	0x0080	/* directory version 2	*/
#define XFS_FSOP_GEOM_FLAGS_LOGV2	0x0100	/* log format version 2	*/
#define XFS_FSOP_GEOM_FLAGS_SECTOR	0x0200	/* sector sizes >1BB	*/
#define XFS_FSOP_GEOM_FLAGS_ATTR2	0x0400	/* inline attributes rework */
#define XFS_FSOP_GEOM_FLAGS_PROJID32	0x0800  /* 32-bit project IDs	*/
#define XFS_FSOP_GEOM_FLAGS_DIRV2CI	0x1000	/* ASCII only CI names	*/
#define XFS_FSOP_GEOM_FLAGS_LAZYSB	0x4000	/* lazy superblock counters */


/*
 * Minimum and maximum sizes need for growth checks
 */
#define XFS_MIN_AG_BLOCKS	64
#define XFS_MIN_LOG_BLOCKS	512ULL
#define XFS_MAX_LOG_BLOCKS	(1024 * 1024ULL)
#define XFS_MIN_LOG_BYTES	(10 * 1024 * 1024ULL)

/* keep the maximum size under 2^31 by a small amount */
#define XFS_MAX_LOG_BYTES \
	((2 * 1024 * 1024 * 1024ULL) - XFS_MIN_LOG_BYTES)

/* Used for sanity checks on superblock */
#define XFS_MAX_DBLOCKS(s) ((xfs_drfsbno_t)(s)->sb_agcount * (s)->sb_agblocks)
#define XFS_MIN_DBLOCKS(s) ((xfs_drfsbno_t)((s)->sb_agcount - 1) *	\
			 (s)->sb_agblocks + XFS_MIN_AG_BLOCKS)

/*
 * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT
 */
typedef struct xfs_growfs_data {
	__u64		newblocks;	/* new data subvol size, fsblocks */
	__u32		imaxpct;	/* new inode space percentage limit */
} xfs_growfs_data_t;

typedef struct xfs_growfs_log {
	__u32		newblocks;	/* new log size, fsblocks */
	__u32		isint;		/* 1 if new log is internal */
} xfs_growfs_log_t;

typedef struct xfs_growfs_rt {
	__u64		newblocks;	/* new realtime size, fsblocks */
	__u32		extsize;	/* new realtime extent size, fsblocks */
} xfs_growfs_rt_t;


/*
 * Structures returned from ioctl XFS_IOC_FSBULKSTAT & XFS_IOC_FSBULKSTAT_SINGLE
 */
typedef struct xfs_bstime {
	time_t		tv_sec;		/* seconds		*/
	__s32		tv_nsec;	/* and nanoseconds	*/
} xfs_bstime_t;

typedef struct xfs_bstat {
	__u64		bs_ino;		/* inode number			*/
	__u16		bs_mode;	/* type and mode		*/
	__u16		bs_nlink;	/* number of links		*/
	__u32		bs_uid;		/* user id			*/
	__u32		bs_gid;		/* group id			*/
	__u32		bs_rdev;	/* device value			*/
	__s32		bs_blksize;	/* block size			*/
	__s64		bs_size;	/* file size			*/
	xfs_bstime_t	bs_atime;	/* access time			*/
	xfs_bstime_t	bs_mtime;	/* modify time			*/
	xfs_bstime_t	bs_ctime;	/* inode change time		*/
	int64_t		bs_blocks;	/* number of blocks		*/
	__u32		bs_xflags;	/* extended flags		*/
	__s32		bs_extsize;	/* extent size			*/
	__s32		bs_extents;	/* number of extents		*/
	__u32		bs_gen;		/* generation count		*/
	__u16		bs_projid_lo;	/* lower part of project id	*/
#define	bs_projid	bs_projid_lo	/* (previously just bs_projid)	*/
	__u16		bs_forkoff;	/* inode fork offset in bytes	*/
	__u16		bs_projid_hi;	/* higher part of project id	*/
	unsigned char	bs_pad[10];	/* pad space, unused		*/
	__u32		bs_dmevmask;	/* DMIG event mask		*/
	__u16		bs_dmstate;	/* DMIG state info		*/
	__u16		bs_aextents;	/* attribute number of extents	*/
} xfs_bstat_t;

/*
 * The user-level BulkStat Request interface structure.
 */
typedef struct xfs_fsop_bulkreq {
	__u64		__user *lastip;	/* last inode # pointer		*/
	__s32		icount;		/* count of entries in buffer	*/
	void		__user *ubuffer;/* user buffer for inode desc.	*/
	__s32		__user *ocount;	/* output count pointer		*/
} xfs_fsop_bulkreq_t;


/*
 * Structures returned from xfs_inumbers routine (XFS_IOC_FSINUMBERS).
 */
typedef struct xfs_inogrp {
	__u64		xi_startino;	/* starting inode number	*/
	__s32		xi_alloccount;	/* # bits set in allocmask	*/
	__u64		xi_allocmask;	/* mask of allocated inodes	*/
} xfs_inogrp_t;


/*
 * Error injection.
 */
typedef struct xfs_error_injection {
	__s32		fd;
	__s32		errtag;
} xfs_error_injection_t;


/*
 * Speculative preallocation trimming.
 */
#define XFS_EOFBLOCKS_VERSION		1
struct xfs_eofblocks {
	__u32		eof_version;
	__u32		eof_flags;
	uid_t		eof_uid;
	gid_t		eof_gid;
	prid_t		eof_prid;
	__u32		pad32;
	__u64		eof_min_file_size;
	__u64		pad64[12];
};

/* eof_flags values */
#define XFS_EOF_FLAGS_SYNC		(1 << 0) /* sync/wait mode scan */
#define XFS_EOF_FLAGS_UID		(1 << 1) /* filter by uid */
#define XFS_EOF_FLAGS_GID		(1 << 2) /* filter by gid */
#define XFS_EOF_FLAGS_PRID		(1 << 3) /* filter by project id */
#define XFS_EOF_FLAGS_MINFILESIZE	(1 << 4) /* filter by min file size */
#define XFS_EOF_FLAGS_VALID	\
	(XFS_EOF_FLAGS_SYNC |	\
	 XFS_EOF_FLAGS_UID |	\
	 XFS_EOF_FLAGS_GID |	\
	 XFS_EOF_FLAGS_PRID |	\
	 XFS_EOF_FLAGS_MINFILESIZE)


/*
 * The user-level Handle Request interface structure.
 */
typedef struct xfs_fsop_handlereq {
	__u32		fd;		/* fd for FD_TO_HANDLE		*/
	void		__user *path;	/* user pathname		*/
	__u32		oflags;		/* open flags			*/
	void		__user *ihandle;/* user supplied handle		*/
	__u32		ihandlen;	/* user supplied length		*/
	void		__user *ohandle;/* user buffer for handle	*/
	__u32		__user *ohandlen;/* user buffer length		*/
} xfs_fsop_handlereq_t;

/*
 * Compound structures for passing args through Handle Request interfaces
 * xfs_fssetdm_by_handle, xfs_attrlist_by_handle, xfs_attrmulti_by_handle
 * - ioctls: XFS_IOC_FSSETDM_BY_HANDLE, XFS_IOC_ATTRLIST_BY_HANDLE, and
 *	     XFS_IOC_ATTRMULTI_BY_HANDLE
 */

typedef struct xfs_fsop_setdm_handlereq {
	struct xfs_fsop_handlereq	hreq;	/* handle information	*/
	struct fsdmidata		__user *data;	/* DMAPI data	*/
} xfs_fsop_setdm_handlereq_t;

typedef struct xfs_attrlist_cursor {
	__u32		opaque[4];
} xfs_attrlist_cursor_t;

typedef struct xfs_fsop_attrlist_handlereq {
	struct xfs_fsop_handlereq	hreq; /* handle interface structure */
	struct xfs_attrlist_cursor	pos; /* opaque cookie, list offset */
	__u32				flags;	/* which namespace to use */
	__u32				buflen;	/* length of buffer supplied */
	void				__user *buffer;	/* returned names */
} xfs_fsop_attrlist_handlereq_t;

typedef struct xfs_attr_multiop {
	__u32		am_opcode;
#define ATTR_OP_GET	1	/* return the indicated attr's value */
#define ATTR_OP_SET	2	/* set/create the indicated attr/value pair */
#define ATTR_OP_REMOVE	3	/* remove the indicated attr */
	__s32		am_error;
	void		__user *am_attrname;
	void		__user *am_attrvalue;
	__u32		am_length;
	__u32		am_flags;
} xfs_attr_multiop_t;

typedef struct xfs_fsop_attrmulti_handlereq {
	struct xfs_fsop_handlereq	hreq; /* handle interface structure */
	__u32				opcount;/* count of following multiop */
	struct xfs_attr_multiop		__user *ops; /* attr_multi data */
} xfs_fsop_attrmulti_handlereq_t;

/*
 * per machine unique filesystem identifier types.
 */
typedef struct { __u32 val[2]; } xfs_fsid_t; /* file system id type */

typedef struct xfs_fid {
	__u16	fid_len;		/* length of remainder	*/
	__u16	fid_pad;
	__u32	fid_gen;		/* generation number	*/
	__u64	fid_ino;		/* 64 bits inode number */
} xfs_fid_t;

typedef struct xfs_handle {
	union {
		__s64	    align;	/* force alignment of ha_fid	 */
		xfs_fsid_t  _ha_fsid;	/* unique file system identifier */
	} ha_u;
	xfs_fid_t	ha_fid;		/* file system specific file ID	 */
} xfs_handle_t;
#define ha_fsid ha_u._ha_fsid

#define XFS_HSIZE(handle)	(((char *) &(handle).ha_fid.fid_pad	 \
				 - (char *) &(handle))			  \
				 + (handle).ha_fid.fid_len)

/*
 * Flags for going down operation
 */
#define XFS_FSOP_GOING_FLAGS_DEFAULT		0x0	/* going down */
#define XFS_FSOP_GOING_FLAGS_LOGFLUSH		0x1	/* flush log but not data */
#define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH		0x2	/* don't flush log nor data */

/*
 * ioctl commands that are used by Linux filesystems
 */
#define XFS_IOC_GETXFLAGS	FS_IOC_GETFLAGS
#define XFS_IOC_SETXFLAGS	FS_IOC_SETFLAGS
#define XFS_IOC_GETVERSION	FS_IOC_GETVERSION

/*
 * ioctl commands that replace IRIX fcntl()'s
 * For 'documentation' purposed more than anything else,
 * the "cmd #" field reflects the IRIX fcntl number.
 */
#define XFS_IOC_ALLOCSP		_IOW ('X', 10, struct xfs_flock64)
#define XFS_IOC_FREESP		_IOW ('X', 11, struct xfs_flock64)
#define XFS_IOC_DIOINFO		_IOR ('X', 30, struct dioattr)
#define XFS_IOC_FSGETXATTR	_IOR ('X', 31, struct fsxattr)
#define XFS_IOC_FSSETXATTR	_IOW ('X', 32, struct fsxattr)
#define XFS_IOC_ALLOCSP64	_IOW ('X', 36, struct xfs_flock64)
#define XFS_IOC_FREESP64	_IOW ('X', 37, struct xfs_flock64)
#define XFS_IOC_GETBMAP		_IOWR('X', 38, struct getbmap)
#define XFS_IOC_FSSETDM		_IOW ('X', 39, struct fsdmidata)
#define XFS_IOC_RESVSP		_IOW ('X', 40, struct xfs_flock64)
#define XFS_IOC_UNRESVSP	_IOW ('X', 41, struct xfs_flock64)
#define XFS_IOC_RESVSP64	_IOW ('X', 42, struct xfs_flock64)
#define XFS_IOC_UNRESVSP64	_IOW ('X', 43, struct xfs_flock64)
#define XFS_IOC_GETBMAPA	_IOWR('X', 44, struct getbmap)
#define XFS_IOC_FSGETXATTRA	_IOR ('X', 45, struct fsxattr)
/*	XFS_IOC_SETBIOSIZE ---- deprecated 46	   */
/*	XFS_IOC_GETBIOSIZE ---- deprecated 47	   */
#define XFS_IOC_GETBMAPX	_IOWR('X', 56, struct getbmap)
#define XFS_IOC_ZERO_RANGE	_IOW ('X', 57, struct xfs_flock64)
#define XFS_IOC_FREE_EOFBLOCKS	_IOR ('X', 58, struct xfs_eofblocks)

/*
 * ioctl commands that replace IRIX syssgi()'s
 */
#define XFS_IOC_FSGEOMETRY_V1	     _IOR ('X', 100, struct xfs_fsop_geom_v1)
#define XFS_IOC_FSBULKSTAT	     _IOWR('X', 101, struct xfs_fsop_bulkreq)
#define XFS_IOC_FSBULKSTAT_SINGLE    _IOWR('X', 102, struct xfs_fsop_bulkreq)
#define XFS_IOC_FSINUMBERS	     _IOWR('X', 103, struct xfs_fsop_bulkreq)
#define XFS_IOC_PATH_TO_FSHANDLE     _IOWR('X', 104, struct xfs_fsop_handlereq)
#define XFS_IOC_PATH_TO_HANDLE	     _IOWR('X', 105, struct xfs_fsop_handlereq)
#define XFS_IOC_FD_TO_HANDLE	     _IOWR('X', 106, struct xfs_fsop_handlereq)
#define XFS_IOC_OPEN_BY_HANDLE	     _IOWR('X', 107, struct xfs_fsop_handlereq)
#define XFS_IOC_READLINK_BY_HANDLE   _IOWR('X', 108, struct xfs_fsop_handlereq)
#define XFS_IOC_SWAPEXT		     _IOWR('X', 109, struct xfs_swapext)
#define XFS_IOC_FSGROWFSDATA	     _IOW ('X', 110, struct xfs_growfs_data)
#define XFS_IOC_FSGROWFSLOG	     _IOW ('X', 111, struct xfs_growfs_log)
#define XFS_IOC_FSGROWFSRT	     _IOW ('X', 112, struct xfs_growfs_rt)
#define XFS_IOC_FSCOUNTS	     _IOR ('X', 113, struct xfs_fsop_counts)
#define XFS_IOC_SET_RESBLKS	     _IOWR('X', 114, struct xfs_fsop_resblks)
#define XFS_IOC_GET_RESBLKS	     _IOR ('X', 115, struct xfs_fsop_resblks)
#define XFS_IOC_ERROR_INJECTION	     _IOW ('X', 116, struct xfs_error_injection)
#define XFS_IOC_ERROR_CLEARALL	     _IOW ('X', 117, struct xfs_error_injection)
/*	XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118	 */
/*	XFS_IOC_FREEZE		  -- FIFREEZE   119	 */
/*	XFS_IOC_THAW		  -- FITHAW     120	 */
#define XFS_IOC_FSSETDM_BY_HANDLE    _IOW ('X', 121, struct xfs_fsop_setdm_handlereq)
#define XFS_IOC_ATTRLIST_BY_HANDLE   _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq)
#define XFS_IOC_ATTRMULTI_BY_HANDLE  _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq)
#define XFS_IOC_FSGEOMETRY	     _IOR ('X', 124, struct xfs_fsop_geom)
#define XFS_IOC_GOINGDOWN	     _IOR ('X', 125, __uint32_t)
/*	XFS_IOC_GETFSUUID ---------- deprecated 140	 */


#ifndef HAVE_BBMACROS
/*
 * Block I/O parameterization.	A basic block (BB) is the lowest size of
 * filesystem allocation, and must equal 512.  Length units given to bio
 * routines are in BB's.
 */
#define BBSHIFT		9
#define BBSIZE		(1<<BBSHIFT)
#define BBMASK		(BBSIZE-1)
#define BTOBB(bytes)	(((__u64)(bytes) + BBSIZE - 1) >> BBSHIFT)
#define BTOBBT(bytes)	((__u64)(bytes) >> BBSHIFT)
#define BBTOB(bbs)	((bbs) << BBSHIFT)
#endif

#endif	/* __XFS_FS_H__ */