xref: /linux/fs/xfs/libxfs/xfs_fs.h (revision 64dfa18d)
1 /* SPDX-License-Identifier: LGPL-2.1 */
2 /*
3  * Copyright (c) 1995-2005 Silicon Graphics, Inc.
4  * All Rights Reserved.
5  */
6 #ifndef __XFS_FS_H__
7 #define __XFS_FS_H__
8 
9 /*
10  * SGI's XFS filesystem's major stuff (constants, structures)
11  * NOTE: This file must be compile-able with C++ compilers.
12  */
13 
14 /*
15  * Direct I/O attribute record used with XFS_IOC_DIOINFO
16  * d_miniosz is the min xfer size, xfer size multiple and file seek offset
17  * alignment.
18  */
19 #ifndef HAVE_DIOATTR
20 struct dioattr {
21 	__u32		d_mem;		/* data buffer memory alignment */
22 	__u32		d_miniosz;	/* min xfer size		*/
23 	__u32		d_maxiosz;	/* max xfer size		*/
24 };
25 #endif
26 
27 /*
28  * Structure for XFS_IOC_GETBMAP.
29  * On input, fill in bmv_offset and bmv_length of the first structure
30  * to indicate the area of interest in the file, and bmv_entries with
31  * the number of array elements given back.  The first structure is
32  * updated on return to give the offset and length for the next call.
33  */
34 #ifndef HAVE_GETBMAP
35 struct getbmap {
36 	__s64		bmv_offset;	/* file offset of segment in blocks */
37 	__s64		bmv_block;	/* starting block (64-bit daddr_t)  */
38 	__s64		bmv_length;	/* length of segment, blocks	    */
39 	__s32		bmv_count;	/* # of entries in array incl. 1st  */
40 	__s32		bmv_entries;	/* # of entries filled in (output)  */
41 };
42 #endif
43 
44 /*
45  *	Structure for XFS_IOC_GETBMAPX.	 Fields bmv_offset through bmv_entries
46  *	are used exactly as in the getbmap structure.  The getbmapx structure
47  *	has additional bmv_iflags and bmv_oflags fields. The bmv_iflags field
48  *	is only used for the first structure.  It contains input flags
49  *	specifying XFS_IOC_GETBMAPX actions.  The bmv_oflags field is filled
50  *	in by the XFS_IOC_GETBMAPX command for each returned structure after
51  *	the first.
52  */
53 #ifndef HAVE_GETBMAPX
54 struct getbmapx {
55 	__s64		bmv_offset;	/* file offset of segment in blocks */
56 	__s64		bmv_block;	/* starting block (64-bit daddr_t)  */
57 	__s64		bmv_length;	/* length of segment, blocks	    */
58 	__s32		bmv_count;	/* # of entries in array incl. 1st  */
59 	__s32		bmv_entries;	/* # of entries filled in (output). */
60 	__s32		bmv_iflags;	/* input flags (1st structure)	    */
61 	__s32		bmv_oflags;	/* output flags (after 1st structure)*/
62 	__s32		bmv_unused1;	/* future use			    */
63 	__s32		bmv_unused2;	/* future use			    */
64 };
65 #endif
66 
67 /*	bmv_iflags values - set by XFS_IOC_GETBMAPX caller.	*/
68 #define BMV_IF_ATTRFORK		0x1	/* return attr fork rather than data */
69 #define BMV_IF_NO_DMAPI_READ	0x2	/* Deprecated */
70 #define BMV_IF_PREALLOC		0x4	/* rtn status BMV_OF_PREALLOC if req */
71 #define BMV_IF_DELALLOC		0x8	/* rtn status BMV_OF_DELALLOC if req */
72 #define BMV_IF_NO_HOLES		0x10	/* Do not return holes */
73 #define BMV_IF_COWFORK		0x20	/* return CoW fork rather than data */
74 #define BMV_IF_VALID	\
75 	(BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC|	\
76 	 BMV_IF_DELALLOC|BMV_IF_NO_HOLES|BMV_IF_COWFORK)
77 
78 /*	bmv_oflags values - returned for each non-header segment */
79 #define BMV_OF_PREALLOC		0x1	/* segment = unwritten pre-allocation */
80 #define BMV_OF_DELALLOC		0x2	/* segment = delayed allocation */
81 #define BMV_OF_LAST		0x4	/* segment is the last in the file */
82 #define BMV_OF_SHARED		0x8	/* segment shared with another file */
83 
84 /*	fmr_owner special values for FS_IOC_GETFSMAP */
85 #define XFS_FMR_OWN_FREE	FMR_OWN_FREE      /* free space */
86 #define XFS_FMR_OWN_UNKNOWN	FMR_OWN_UNKNOWN   /* unknown owner */
87 #define XFS_FMR_OWN_FS		FMR_OWNER('X', 1) /* static fs metadata */
88 #define XFS_FMR_OWN_LOG		FMR_OWNER('X', 2) /* journalling log */
89 #define XFS_FMR_OWN_AG		FMR_OWNER('X', 3) /* per-AG metadata */
90 #define XFS_FMR_OWN_INOBT	FMR_OWNER('X', 4) /* inode btree blocks */
91 #define XFS_FMR_OWN_INODES	FMR_OWNER('X', 5) /* inodes */
92 #define XFS_FMR_OWN_REFC	FMR_OWNER('X', 6) /* refcount tree */
93 #define XFS_FMR_OWN_COW		FMR_OWNER('X', 7) /* cow staging */
94 #define XFS_FMR_OWN_DEFECTIVE	FMR_OWNER('X', 8) /* bad blocks */
95 
96 /*
97  * File segment locking set data type for 64 bit access.
98  * Also used for all the RESV/FREE interfaces.
99  */
100 typedef struct xfs_flock64 {
101 	__s16		l_type;
102 	__s16		l_whence;
103 	__s64		l_start;
104 	__s64		l_len;		/* len == 0 means until end of file */
105 	__s32		l_sysid;
106 	__u32		l_pid;
107 	__s32		l_pad[4];	/* reserve area			    */
108 } xfs_flock64_t;
109 
110 /*
111  * Output for XFS_IOC_FSGEOMETRY_V1
112  */
113 struct xfs_fsop_geom_v1 {
114 	__u32		blocksize;	/* filesystem (data) block size */
115 	__u32		rtextsize;	/* realtime extent size		*/
116 	__u32		agblocks;	/* fsblocks in an AG		*/
117 	__u32		agcount;	/* number of allocation groups	*/
118 	__u32		logblocks;	/* fsblocks in the log		*/
119 	__u32		sectsize;	/* (data) sector size, bytes	*/
120 	__u32		inodesize;	/* inode size in bytes		*/
121 	__u32		imaxpct;	/* max allowed inode space(%)	*/
122 	__u64		datablocks;	/* fsblocks in data subvolume	*/
123 	__u64		rtblocks;	/* fsblocks in realtime subvol	*/
124 	__u64		rtextents;	/* rt extents in realtime subvol*/
125 	__u64		logstart;	/* starting fsblock of the log	*/
126 	unsigned char	uuid[16];	/* unique id of the filesystem	*/
127 	__u32		sunit;		/* stripe unit, fsblocks	*/
128 	__u32		swidth;		/* stripe width, fsblocks	*/
129 	__s32		version;	/* structure version		*/
130 	__u32		flags;		/* superblock version flags	*/
131 	__u32		logsectsize;	/* log sector size, bytes	*/
132 	__u32		rtsectsize;	/* realtime sector size, bytes	*/
133 	__u32		dirblocksize;	/* directory block size, bytes	*/
134 };
135 
136 /*
137  * Output for XFS_IOC_FSGEOMETRY_V4
138  */
139 struct xfs_fsop_geom_v4 {
140 	__u32		blocksize;	/* filesystem (data) block size */
141 	__u32		rtextsize;	/* realtime extent size		*/
142 	__u32		agblocks;	/* fsblocks in an AG		*/
143 	__u32		agcount;	/* number of allocation groups	*/
144 	__u32		logblocks;	/* fsblocks in the log		*/
145 	__u32		sectsize;	/* (data) sector size, bytes	*/
146 	__u32		inodesize;	/* inode size in bytes		*/
147 	__u32		imaxpct;	/* max allowed inode space(%)	*/
148 	__u64		datablocks;	/* fsblocks in data subvolume	*/
149 	__u64		rtblocks;	/* fsblocks in realtime subvol	*/
150 	__u64		rtextents;	/* rt extents in realtime subvol*/
151 	__u64		logstart;	/* starting fsblock of the log	*/
152 	unsigned char	uuid[16];	/* unique id of the filesystem	*/
153 	__u32		sunit;		/* stripe unit, fsblocks	*/
154 	__u32		swidth;		/* stripe width, fsblocks	*/
155 	__s32		version;	/* structure version		*/
156 	__u32		flags;		/* superblock version flags	*/
157 	__u32		logsectsize;	/* log sector size, bytes	*/
158 	__u32		rtsectsize;	/* realtime sector size, bytes	*/
159 	__u32		dirblocksize;	/* directory block size, bytes	*/
160 	__u32		logsunit;	/* log stripe unit, bytes	*/
161 };
162 
163 /*
164  * Output for XFS_IOC_FSGEOMETRY
165  */
166 struct xfs_fsop_geom {
167 	__u32		blocksize;	/* filesystem (data) block size */
168 	__u32		rtextsize;	/* realtime extent size		*/
169 	__u32		agblocks;	/* fsblocks in an AG		*/
170 	__u32		agcount;	/* number of allocation groups	*/
171 	__u32		logblocks;	/* fsblocks in the log		*/
172 	__u32		sectsize;	/* (data) sector size, bytes	*/
173 	__u32		inodesize;	/* inode size in bytes		*/
174 	__u32		imaxpct;	/* max allowed inode space(%)	*/
175 	__u64		datablocks;	/* fsblocks in data subvolume	*/
176 	__u64		rtblocks;	/* fsblocks in realtime subvol	*/
177 	__u64		rtextents;	/* rt extents in realtime subvol*/
178 	__u64		logstart;	/* starting fsblock of the log	*/
179 	unsigned char	uuid[16];	/* unique id of the filesystem	*/
180 	__u32		sunit;		/* stripe unit, fsblocks	*/
181 	__u32		swidth;		/* stripe width, fsblocks	*/
182 	__s32		version;	/* structure version		*/
183 	__u32		flags;		/* superblock version flags	*/
184 	__u32		logsectsize;	/* log sector size, bytes	*/
185 	__u32		rtsectsize;	/* realtime sector size, bytes	*/
186 	__u32		dirblocksize;	/* directory block size, bytes	*/
187 	__u32		logsunit;	/* log stripe unit, bytes	*/
188 	uint32_t	sick;		/* o: unhealthy fs & rt metadata */
189 	uint32_t	checked;	/* o: checked fs & rt metadata	*/
190 	__u64		reserved[17];	/* reserved space		*/
191 };
192 
193 #define XFS_FSOP_GEOM_SICK_COUNTERS	(1 << 0)  /* summary counters */
194 #define XFS_FSOP_GEOM_SICK_UQUOTA	(1 << 1)  /* user quota */
195 #define XFS_FSOP_GEOM_SICK_GQUOTA	(1 << 2)  /* group quota */
196 #define XFS_FSOP_GEOM_SICK_PQUOTA	(1 << 3)  /* project quota */
197 #define XFS_FSOP_GEOM_SICK_RT_BITMAP	(1 << 4)  /* realtime bitmap */
198 #define XFS_FSOP_GEOM_SICK_RT_SUMMARY	(1 << 5)  /* realtime summary */
199 #define XFS_FSOP_GEOM_SICK_QUOTACHECK	(1 << 6)  /* quota counts */
200 #define XFS_FSOP_GEOM_SICK_NLINKS	(1 << 7)  /* inode link counts */
201 
202 /* Output for XFS_FS_COUNTS */
203 typedef struct xfs_fsop_counts {
204 	__u64	freedata;	/* free data section blocks */
205 	__u64	freertx;	/* free rt extents */
206 	__u64	freeino;	/* free inodes */
207 	__u64	allocino;	/* total allocated inodes */
208 } xfs_fsop_counts_t;
209 
210 /* Input/Output for XFS_GET_RESBLKS and XFS_SET_RESBLKS */
211 typedef struct xfs_fsop_resblks {
212 	__u64  resblks;
213 	__u64  resblks_avail;
214 } xfs_fsop_resblks_t;
215 
216 #define XFS_FSOP_GEOM_VERSION		0
217 #define XFS_FSOP_GEOM_VERSION_V5	5
218 
219 #define XFS_FSOP_GEOM_FLAGS_ATTR	(1 << 0)  /* attributes in use	   */
220 #define XFS_FSOP_GEOM_FLAGS_NLINK	(1 << 1)  /* 32-bit nlink values   */
221 #define XFS_FSOP_GEOM_FLAGS_QUOTA	(1 << 2)  /* quotas enabled	   */
222 #define XFS_FSOP_GEOM_FLAGS_IALIGN	(1 << 3)  /* inode alignment	   */
223 #define XFS_FSOP_GEOM_FLAGS_DALIGN	(1 << 4)  /* large data alignment  */
224 #define XFS_FSOP_GEOM_FLAGS_SHARED	(1 << 5)  /* read-only shared	   */
225 #define XFS_FSOP_GEOM_FLAGS_EXTFLG	(1 << 6)  /* special extent flag   */
226 #define XFS_FSOP_GEOM_FLAGS_DIRV2	(1 << 7)  /* directory version 2   */
227 #define XFS_FSOP_GEOM_FLAGS_LOGV2	(1 << 8)  /* log format version 2  */
228 #define XFS_FSOP_GEOM_FLAGS_SECTOR	(1 << 9)  /* sector sizes >1BB	   */
229 #define XFS_FSOP_GEOM_FLAGS_ATTR2	(1 << 10) /* inline attributes rework */
230 #define XFS_FSOP_GEOM_FLAGS_PROJID32	(1 << 11) /* 32-bit project IDs	   */
231 #define XFS_FSOP_GEOM_FLAGS_DIRV2CI	(1 << 12) /* ASCII only CI names   */
232 	/*  -- Do not use --		(1 << 13)    SGI parent pointers   */
233 #define XFS_FSOP_GEOM_FLAGS_LAZYSB	(1 << 14) /* lazy superblock counters */
234 #define XFS_FSOP_GEOM_FLAGS_V5SB	(1 << 15) /* version 5 superblock  */
235 #define XFS_FSOP_GEOM_FLAGS_FTYPE	(1 << 16) /* inode directory types */
236 #define XFS_FSOP_GEOM_FLAGS_FINOBT	(1 << 17) /* free inode btree	   */
237 #define XFS_FSOP_GEOM_FLAGS_SPINODES	(1 << 18) /* sparse inode chunks   */
238 #define XFS_FSOP_GEOM_FLAGS_RMAPBT	(1 << 19) /* reverse mapping btree */
239 #define XFS_FSOP_GEOM_FLAGS_REFLINK	(1 << 20) /* files can share blocks */
240 #define XFS_FSOP_GEOM_FLAGS_BIGTIME	(1 << 21) /* 64-bit nsec timestamps */
241 #define XFS_FSOP_GEOM_FLAGS_INOBTCNT	(1 << 22) /* inobt btree counter */
242 #define XFS_FSOP_GEOM_FLAGS_NREXT64	(1 << 23) /* large extent counters */
243 #define XFS_FSOP_GEOM_FLAGS_EXCHANGE_RANGE (1 << 24) /* exchange range */
244 #define XFS_FSOP_GEOM_FLAGS_PARENT	(1 << 25) /* linux parent pointers */
245 
246 /*
247  * Minimum and maximum sizes need for growth checks.
248  *
249  * Block counts are in units of filesystem blocks, not basic blocks.
250  */
251 #define XFS_MIN_AG_BLOCKS	64
252 #define XFS_MIN_LOG_BLOCKS	512ULL
253 #define XFS_MAX_LOG_BLOCKS	(1024 * 1024ULL)
254 #define XFS_MIN_LOG_BYTES	(10 * 1024 * 1024ULL)
255 
256 /*
257  * Limits on sb_agblocks/sb_agblklog -- mkfs won't format AGs smaller than
258  * 16MB or larger than 1TB.
259  */
260 #define XFS_MIN_AG_BYTES	(1ULL << 24)	/* 16 MB */
261 #define XFS_MAX_AG_BYTES	(1ULL << 40)	/* 1 TB */
262 #define XFS_MAX_AG_BLOCKS	(XFS_MAX_AG_BYTES / XFS_MIN_BLOCKSIZE)
263 #define XFS_MAX_CRC_AG_BLOCKS	(XFS_MAX_AG_BYTES / XFS_MIN_CRC_BLOCKSIZE)
264 
265 #define XFS_MAX_AGNUMBER	((xfs_agnumber_t)(NULLAGNUMBER - 1))
266 
267 /* keep the maximum size under 2^31 by a small amount */
268 #define XFS_MAX_LOG_BYTES \
269 	((2 * 1024 * 1024 * 1024ULL) - XFS_MIN_LOG_BYTES)
270 
271 /* Used for sanity checks on superblock */
272 #define XFS_MAX_DBLOCKS(s) ((xfs_rfsblock_t)(s)->sb_agcount * (s)->sb_agblocks)
273 #define XFS_MIN_DBLOCKS(s) ((xfs_rfsblock_t)((s)->sb_agcount - 1) *	\
274 			 (s)->sb_agblocks + XFS_MIN_AG_BLOCKS)
275 
276 /*
277  * Output for XFS_IOC_AG_GEOMETRY
278  */
279 struct xfs_ag_geometry {
280 	uint32_t	ag_number;	/* i/o: AG number */
281 	uint32_t	ag_length;	/* o: length in blocks */
282 	uint32_t	ag_freeblks;	/* o: free space */
283 	uint32_t	ag_icount;	/* o: inodes allocated */
284 	uint32_t	ag_ifree;	/* o: inodes free */
285 	uint32_t	ag_sick;	/* o: sick things in ag */
286 	uint32_t	ag_checked;	/* o: checked metadata in ag */
287 	uint32_t	ag_flags;	/* i/o: flags for this ag */
288 	uint64_t	ag_reserved[12];/* o: zero */
289 };
290 #define XFS_AG_GEOM_SICK_SB	(1 << 0)  /* superblock */
291 #define XFS_AG_GEOM_SICK_AGF	(1 << 1)  /* AGF header */
292 #define XFS_AG_GEOM_SICK_AGFL	(1 << 2)  /* AGFL header */
293 #define XFS_AG_GEOM_SICK_AGI	(1 << 3)  /* AGI header */
294 #define XFS_AG_GEOM_SICK_BNOBT	(1 << 4)  /* free space by block */
295 #define XFS_AG_GEOM_SICK_CNTBT	(1 << 5)  /* free space by length */
296 #define XFS_AG_GEOM_SICK_INOBT	(1 << 6)  /* inode index */
297 #define XFS_AG_GEOM_SICK_FINOBT	(1 << 7)  /* free inode index */
298 #define XFS_AG_GEOM_SICK_RMAPBT	(1 << 8)  /* reverse mappings */
299 #define XFS_AG_GEOM_SICK_REFCNTBT (1 << 9)  /* reference counts */
300 #define XFS_AG_GEOM_SICK_INODES	(1 << 10) /* bad inodes were seen */
301 
302 /*
303  * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT
304  */
305 typedef struct xfs_growfs_data {
306 	__u64		newblocks;	/* new data subvol size, fsblocks */
307 	__u32		imaxpct;	/* new inode space percentage limit */
308 } xfs_growfs_data_t;
309 
310 typedef struct xfs_growfs_log {
311 	__u32		newblocks;	/* new log size, fsblocks */
312 	__u32		isint;		/* 1 if new log is internal */
313 } xfs_growfs_log_t;
314 
315 typedef struct xfs_growfs_rt {
316 	__u64		newblocks;	/* new realtime size, fsblocks */
317 	__u32		extsize;	/* new realtime extent size, fsblocks */
318 } xfs_growfs_rt_t;
319 
320 
321 /*
322  * Structures returned from ioctl XFS_IOC_FSBULKSTAT & XFS_IOC_FSBULKSTAT_SINGLE
323  */
324 typedef struct xfs_bstime {
325 	__kernel_long_t tv_sec;		/* seconds		*/
326 	__s32		tv_nsec;	/* and nanoseconds	*/
327 } xfs_bstime_t;
328 
329 struct xfs_bstat {
330 	__u64		bs_ino;		/* inode number			*/
331 	__u16		bs_mode;	/* type and mode		*/
332 	__u16		bs_nlink;	/* number of links		*/
333 	__u32		bs_uid;		/* user id			*/
334 	__u32		bs_gid;		/* group id			*/
335 	__u32		bs_rdev;	/* device value			*/
336 	__s32		bs_blksize;	/* block size			*/
337 	__s64		bs_size;	/* file size			*/
338 	xfs_bstime_t	bs_atime;	/* access time			*/
339 	xfs_bstime_t	bs_mtime;	/* modify time			*/
340 	xfs_bstime_t	bs_ctime;	/* inode change time		*/
341 	int64_t		bs_blocks;	/* number of blocks		*/
342 	__u32		bs_xflags;	/* extended flags		*/
343 	__s32		bs_extsize;	/* extent size			*/
344 	__s32		bs_extents;	/* number of extents		*/
345 	__u32		bs_gen;		/* generation count		*/
346 	__u16		bs_projid_lo;	/* lower part of project id	*/
347 #define	bs_projid	bs_projid_lo	/* (previously just bs_projid)	*/
348 	__u16		bs_forkoff;	/* inode fork offset in bytes	*/
349 	__u16		bs_projid_hi;	/* higher part of project id	*/
350 	uint16_t	bs_sick;	/* sick inode metadata		*/
351 	uint16_t	bs_checked;	/* checked inode metadata	*/
352 	unsigned char	bs_pad[2];	/* pad space, unused		*/
353 	__u32		bs_cowextsize;	/* cow extent size		*/
354 	__u32		bs_dmevmask;	/* DMIG event mask		*/
355 	__u16		bs_dmstate;	/* DMIG state info		*/
356 	__u16		bs_aextents;	/* attribute number of extents	*/
357 };
358 
359 /* New bulkstat structure that reports v5 features and fixes padding issues */
360 struct xfs_bulkstat {
361 	uint64_t	bs_ino;		/* inode number			*/
362 	uint64_t	bs_size;	/* file size			*/
363 
364 	uint64_t	bs_blocks;	/* number of blocks		*/
365 	uint64_t	bs_xflags;	/* extended flags		*/
366 
367 	int64_t		bs_atime;	/* access time, seconds		*/
368 	int64_t		bs_mtime;	/* modify time, seconds		*/
369 
370 	int64_t		bs_ctime;	/* inode change time, seconds	*/
371 	int64_t		bs_btime;	/* creation time, seconds	*/
372 
373 	uint32_t	bs_gen;		/* generation count		*/
374 	uint32_t	bs_uid;		/* user id			*/
375 	uint32_t	bs_gid;		/* group id			*/
376 	uint32_t	bs_projectid;	/* project id			*/
377 
378 	uint32_t	bs_atime_nsec;	/* access time, nanoseconds	*/
379 	uint32_t	bs_mtime_nsec;	/* modify time, nanoseconds	*/
380 	uint32_t	bs_ctime_nsec;	/* inode change time, nanoseconds */
381 	uint32_t	bs_btime_nsec;	/* creation time, nanoseconds	*/
382 
383 	uint32_t	bs_blksize;	/* block size			*/
384 	uint32_t	bs_rdev;	/* device value			*/
385 	uint32_t	bs_cowextsize_blks; /* cow extent size hint, blocks */
386 	uint32_t	bs_extsize_blks; /* extent size hint, blocks	*/
387 
388 	uint32_t	bs_nlink;	/* number of links		*/
389 	uint32_t	bs_extents;	/* 32-bit data fork extent counter */
390 	uint32_t	bs_aextents;	/* attribute number of extents	*/
391 	uint16_t	bs_version;	/* structure version		*/
392 	uint16_t	bs_forkoff;	/* inode fork offset in bytes	*/
393 
394 	uint16_t	bs_sick;	/* sick inode metadata		*/
395 	uint16_t	bs_checked;	/* checked inode metadata	*/
396 	uint16_t	bs_mode;	/* type and mode		*/
397 	uint16_t	bs_pad2;	/* zeroed			*/
398 	uint64_t	bs_extents64;	/* 64-bit data fork extent counter */
399 
400 	uint64_t	bs_pad[6];	/* zeroed			*/
401 };
402 
403 #define XFS_BULKSTAT_VERSION_V1	(1)
404 #define XFS_BULKSTAT_VERSION_V5	(5)
405 
406 /* bs_sick flags */
407 #define XFS_BS_SICK_INODE	(1 << 0)  /* inode core */
408 #define XFS_BS_SICK_BMBTD	(1 << 1)  /* data fork */
409 #define XFS_BS_SICK_BMBTA	(1 << 2)  /* attr fork */
410 #define XFS_BS_SICK_BMBTC	(1 << 3)  /* cow fork */
411 #define XFS_BS_SICK_DIR		(1 << 4)  /* directory */
412 #define XFS_BS_SICK_XATTR	(1 << 5)  /* extended attributes */
413 #define XFS_BS_SICK_SYMLINK	(1 << 6)  /* symbolic link remote target */
414 #define XFS_BS_SICK_PARENT	(1 << 7)  /* parent pointers */
415 #define XFS_BS_SICK_DIRTREE	(1 << 8)  /* directory tree structure */
416 
417 /*
418  * Project quota id helpers (previously projid was 16bit only
419  * and using two 16bit values to hold new 32bit projid was chosen
420  * to retain compatibility with "old" filesystems).
421  */
422 static inline uint32_t
bstat_get_projid(const struct xfs_bstat * bs)423 bstat_get_projid(const struct xfs_bstat *bs)
424 {
425 	return (uint32_t)bs->bs_projid_hi << 16 | bs->bs_projid_lo;
426 }
427 
428 /*
429  * The user-level BulkStat Request interface structure.
430  */
431 struct xfs_fsop_bulkreq {
432 	__u64		__user *lastip;	/* last inode # pointer		*/
433 	__s32		icount;		/* count of entries in buffer	*/
434 	void		__user *ubuffer;/* user buffer for inode desc.	*/
435 	__s32		__user *ocount;	/* output count pointer		*/
436 };
437 
438 /*
439  * Structures returned from xfs_inumbers routine (XFS_IOC_FSINUMBERS).
440  */
441 struct xfs_inogrp {
442 	__u64		xi_startino;	/* starting inode number	*/
443 	__s32		xi_alloccount;	/* # bits set in allocmask	*/
444 	__u64		xi_allocmask;	/* mask of allocated inodes	*/
445 };
446 
447 /* New inumbers structure that reports v5 features and fixes padding issues */
448 struct xfs_inumbers {
449 	uint64_t	xi_startino;	/* starting inode number	*/
450 	uint64_t	xi_allocmask;	/* mask of allocated inodes	*/
451 	uint8_t		xi_alloccount;	/* # bits set in allocmask	*/
452 	uint8_t		xi_version;	/* version			*/
453 	uint8_t		xi_padding[6];	/* zero				*/
454 };
455 
456 #define XFS_INUMBERS_VERSION_V1	(1)
457 #define XFS_INUMBERS_VERSION_V5	(5)
458 
459 /* Header for bulk inode requests. */
460 struct xfs_bulk_ireq {
461 	uint64_t	ino;		/* I/O: start with this inode	*/
462 	uint32_t	flags;		/* I/O: operation flags		*/
463 	uint32_t	icount;		/* I: count of entries in buffer */
464 	uint32_t	ocount;		/* O: count of entries filled out */
465 	uint32_t	agno;		/* I: see comment for IREQ_AGNO	*/
466 	uint64_t	reserved[5];	/* must be zero			*/
467 };
468 
469 /*
470  * Only return results from the specified @agno.  If @ino is zero, start
471  * with the first inode of @agno.
472  */
473 #define XFS_BULK_IREQ_AGNO	(1U << 0)
474 
475 /*
476  * Return bulkstat information for a single inode, where @ino value is a
477  * special value, not a literal inode number.  See the XFS_BULK_IREQ_SPECIAL_*
478  * values below.  Not compatible with XFS_BULK_IREQ_AGNO.
479  */
480 #define XFS_BULK_IREQ_SPECIAL	(1U << 1)
481 
482 /*
483  * Return data fork extent count via xfs_bulkstat->bs_extents64 field and assign
484  * 0 to xfs_bulkstat->bs_extents when the flag is set.  Otherwise, use
485  * xfs_bulkstat->bs_extents for returning data fork extent count and set
486  * xfs_bulkstat->bs_extents64 to 0. In the second case, return -EOVERFLOW and
487  * assign 0 to xfs_bulkstat->bs_extents if data fork extent count is larger than
488  * XFS_MAX_EXTCNT_DATA_FORK_OLD.
489  */
490 #define XFS_BULK_IREQ_NREXT64	(1U << 2)
491 
492 #define XFS_BULK_IREQ_FLAGS_ALL	(XFS_BULK_IREQ_AGNO |	 \
493 				 XFS_BULK_IREQ_SPECIAL | \
494 				 XFS_BULK_IREQ_NREXT64)
495 
496 /* Operate on the root directory inode. */
497 #define XFS_BULK_IREQ_SPECIAL_ROOT	(1)
498 
499 /*
500  * ioctl structures for v5 bulkstat and inumbers requests
501  */
502 struct xfs_bulkstat_req {
503 	struct xfs_bulk_ireq	hdr;
504 	struct xfs_bulkstat	bulkstat[];
505 };
506 #define XFS_BULKSTAT_REQ_SIZE(nr)	(sizeof(struct xfs_bulkstat_req) + \
507 					 (nr) * sizeof(struct xfs_bulkstat))
508 
509 struct xfs_inumbers_req {
510 	struct xfs_bulk_ireq	hdr;
511 	struct xfs_inumbers	inumbers[];
512 };
513 #define XFS_INUMBERS_REQ_SIZE(nr)	(sizeof(struct xfs_inumbers_req) + \
514 					 (nr) * sizeof(struct xfs_inumbers))
515 
516 /*
517  * Error injection.
518  */
519 typedef struct xfs_error_injection {
520 	__s32		fd;
521 	__s32		errtag;
522 } xfs_error_injection_t;
523 
524 
525 /*
526  * Speculative preallocation trimming.
527  */
528 #define XFS_EOFBLOCKS_VERSION		1
529 struct xfs_fs_eofblocks {
530 	__u32		eof_version;
531 	__u32		eof_flags;
532 	uid_t		eof_uid;
533 	gid_t		eof_gid;
534 	prid_t		eof_prid;
535 	__u32		pad32;
536 	__u64		eof_min_file_size;
537 	__u64		pad64[12];
538 };
539 
540 /* eof_flags values */
541 #define XFS_EOF_FLAGS_SYNC		(1 << 0) /* sync/wait mode scan */
542 #define XFS_EOF_FLAGS_UID		(1 << 1) /* filter by uid */
543 #define XFS_EOF_FLAGS_GID		(1 << 2) /* filter by gid */
544 #define XFS_EOF_FLAGS_PRID		(1 << 3) /* filter by project id */
545 #define XFS_EOF_FLAGS_MINFILESIZE	(1 << 4) /* filter by min file size */
546 #define XFS_EOF_FLAGS_UNION		(1 << 5) /* union filter algorithm;
547 						  * kernel only, not included in
548 						  * valid mask */
549 #define XFS_EOF_FLAGS_VALID	\
550 	(XFS_EOF_FLAGS_SYNC |	\
551 	 XFS_EOF_FLAGS_UID |	\
552 	 XFS_EOF_FLAGS_GID |	\
553 	 XFS_EOF_FLAGS_PRID |	\
554 	 XFS_EOF_FLAGS_MINFILESIZE)
555 
556 
557 /*
558  * The user-level Handle Request interface structure.
559  */
560 typedef struct xfs_fsop_handlereq {
561 	__u32		fd;		/* fd for FD_TO_HANDLE		*/
562 	void		__user *path;	/* user pathname		*/
563 	__u32		oflags;		/* open flags			*/
564 	void		__user *ihandle;/* user supplied handle		*/
565 	__u32		ihandlen;	/* user supplied length		*/
566 	void		__user *ohandle;/* user buffer for handle	*/
567 	__u32		__user *ohandlen;/* user buffer length		*/
568 } xfs_fsop_handlereq_t;
569 
570 /*
571  * Compound structures for passing args through Handle Request interfaces
572  * xfs_attrlist_by_handle, xfs_attrmulti_by_handle
573  * - ioctls: XFS_IOC_ATTRLIST_BY_HANDLE, and XFS_IOC_ATTRMULTI_BY_HANDLE
574  */
575 
576 /*
577  * Flags passed in xfs_attr_multiop.am_flags for the attr ioctl interface.
578  *
579  * NOTE: Must match the values declared in libattr without the XFS_IOC_ prefix.
580  */
581 #define XFS_IOC_ATTR_ROOT	0x0002	/* use attrs in root namespace */
582 #define XFS_IOC_ATTR_SECURE	0x0008	/* use attrs in security namespace */
583 #define XFS_IOC_ATTR_CREATE	0x0010	/* fail if attr already exists */
584 #define XFS_IOC_ATTR_REPLACE	0x0020	/* fail if attr does not exist */
585 
586 typedef struct xfs_attrlist_cursor {
587 	__u32		opaque[4];
588 } xfs_attrlist_cursor_t;
589 
590 /*
591  * Define how lists of attribute names are returned to userspace from the
592  * XFS_IOC_ATTRLIST_BY_HANDLE ioctl.  struct xfs_attrlist is the header at the
593  * beginning of the returned buffer, and a each entry in al_offset contains the
594  * relative offset of an xfs_attrlist_ent containing the actual entry.
595  *
596  * NOTE: struct xfs_attrlist must match struct attrlist defined in libattr, and
597  * struct xfs_attrlist_ent must match struct attrlist_ent defined in libattr.
598  */
599 struct xfs_attrlist {
600 	__s32	al_count;	/* number of entries in attrlist */
601 	__s32	al_more;	/* T/F: more attrs (do call again) */
602 	__s32	al_offset[];	/* byte offsets of attrs [var-sized] */
603 };
604 
605 struct xfs_attrlist_ent {	/* data from attr_list() */
606 	__u32	a_valuelen;	/* number bytes in value of attr */
607 	char	a_name[];	/* attr name (NULL terminated) */
608 };
609 
610 typedef struct xfs_fsop_attrlist_handlereq {
611 	struct xfs_fsop_handlereq	hreq; /* handle interface structure */
612 	struct xfs_attrlist_cursor	pos; /* opaque cookie, list offset */
613 	__u32				flags;	/* which namespace to use */
614 	__u32				buflen;	/* length of buffer supplied */
615 	void				__user *buffer;	/* returned names */
616 } xfs_fsop_attrlist_handlereq_t;
617 
618 typedef struct xfs_attr_multiop {
619 	__u32		am_opcode;
620 #define ATTR_OP_GET	1	/* return the indicated attr's value */
621 #define ATTR_OP_SET	2	/* set/create the indicated attr/value pair */
622 #define ATTR_OP_REMOVE	3	/* remove the indicated attr */
623 	__s32		am_error;
624 	void		__user *am_attrname;
625 	void		__user *am_attrvalue;
626 	__u32		am_length;
627 	__u32		am_flags; /* XFS_IOC_ATTR_* */
628 } xfs_attr_multiop_t;
629 
630 typedef struct xfs_fsop_attrmulti_handlereq {
631 	struct xfs_fsop_handlereq	hreq; /* handle interface structure */
632 	__u32				opcount;/* count of following multiop */
633 	struct xfs_attr_multiop		__user *ops; /* attr_multi data */
634 } xfs_fsop_attrmulti_handlereq_t;
635 
636 /*
637  * per machine unique filesystem identifier types.
638  */
639 typedef struct xfs_fsid {
640 	__u32	val[2];			/* file system id type */
641 } xfs_fsid_t;
642 
643 typedef struct xfs_fid {
644 	__u16	fid_len;		/* length of remainder	*/
645 	__u16	fid_pad;
646 	__u32	fid_gen;		/* generation number	*/
647 	__u64	fid_ino;		/* 64 bits inode number */
648 } xfs_fid_t;
649 
650 typedef struct xfs_handle {
651 	union {
652 		__s64	    align;	/* force alignment of ha_fid	 */
653 		xfs_fsid_t  _ha_fsid;	/* unique file system identifier */
654 	} ha_u;
655 	xfs_fid_t	ha_fid;		/* file system specific file ID	 */
656 } xfs_handle_t;
657 #define ha_fsid ha_u._ha_fsid
658 
659 /*
660  * Structure passed to XFS_IOC_SWAPEXT
661  */
662 typedef struct xfs_swapext
663 {
664 	int64_t		sx_version;	/* version */
665 #define XFS_SX_VERSION		0
666 	int64_t		sx_fdtarget;	/* fd of target file */
667 	int64_t		sx_fdtmp;	/* fd of tmp file */
668 	xfs_off_t	sx_offset;	/* offset into file */
669 	xfs_off_t	sx_length;	/* leng from offset */
670 	char		sx_pad[16];	/* pad space, unused */
671 	struct xfs_bstat sx_stat;	/* stat of target b4 copy */
672 } xfs_swapext_t;
673 
674 /*
675  * Flags for going down operation
676  */
677 #define XFS_FSOP_GOING_FLAGS_DEFAULT		0x0	/* going down */
678 #define XFS_FSOP_GOING_FLAGS_LOGFLUSH		0x1	/* flush log but not data */
679 #define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH		0x2	/* don't flush log nor data */
680 
681 /* metadata scrubbing */
682 struct xfs_scrub_metadata {
683 	__u32 sm_type;		/* What to check? */
684 	__u32 sm_flags;		/* flags; see below. */
685 	__u64 sm_ino;		/* inode number. */
686 	__u32 sm_gen;		/* inode generation. */
687 	__u32 sm_agno;		/* ag number. */
688 	__u64 sm_reserved[5];	/* pad to 64 bytes */
689 };
690 
691 /*
692  * Metadata types and flags for scrub operation.
693  */
694 
695 /* Scrub subcommands. */
696 #define XFS_SCRUB_TYPE_PROBE	0	/* presence test ioctl */
697 #define XFS_SCRUB_TYPE_SB	1	/* superblock */
698 #define XFS_SCRUB_TYPE_AGF	2	/* AG free header */
699 #define XFS_SCRUB_TYPE_AGFL	3	/* AG free list */
700 #define XFS_SCRUB_TYPE_AGI	4	/* AG inode header */
701 #define XFS_SCRUB_TYPE_BNOBT	5	/* freesp by block btree */
702 #define XFS_SCRUB_TYPE_CNTBT	6	/* freesp by length btree */
703 #define XFS_SCRUB_TYPE_INOBT	7	/* inode btree */
704 #define XFS_SCRUB_TYPE_FINOBT	8	/* free inode btree */
705 #define XFS_SCRUB_TYPE_RMAPBT	9	/* reverse mapping btree */
706 #define XFS_SCRUB_TYPE_REFCNTBT	10	/* reference count btree */
707 #define XFS_SCRUB_TYPE_INODE	11	/* inode record */
708 #define XFS_SCRUB_TYPE_BMBTD	12	/* data fork block mapping */
709 #define XFS_SCRUB_TYPE_BMBTA	13	/* attr fork block mapping */
710 #define XFS_SCRUB_TYPE_BMBTC	14	/* CoW fork block mapping */
711 #define XFS_SCRUB_TYPE_DIR	15	/* directory */
712 #define XFS_SCRUB_TYPE_XATTR	16	/* extended attribute */
713 #define XFS_SCRUB_TYPE_SYMLINK	17	/* symbolic link */
714 #define XFS_SCRUB_TYPE_PARENT	18	/* parent pointers */
715 #define XFS_SCRUB_TYPE_RTBITMAP	19	/* realtime bitmap */
716 #define XFS_SCRUB_TYPE_RTSUM	20	/* realtime summary */
717 #define XFS_SCRUB_TYPE_UQUOTA	21	/* user quotas */
718 #define XFS_SCRUB_TYPE_GQUOTA	22	/* group quotas */
719 #define XFS_SCRUB_TYPE_PQUOTA	23	/* project quotas */
720 #define XFS_SCRUB_TYPE_FSCOUNTERS 24	/* fs summary counters */
721 #define XFS_SCRUB_TYPE_QUOTACHECK 25	/* quota counters */
722 #define XFS_SCRUB_TYPE_NLINKS	26	/* inode link counts */
723 #define XFS_SCRUB_TYPE_HEALTHY	27	/* everything checked out ok */
724 #define XFS_SCRUB_TYPE_DIRTREE	28	/* directory tree structure */
725 
726 /* Number of scrub subcommands. */
727 #define XFS_SCRUB_TYPE_NR	29
728 
729 /*
730  * This special type code only applies to the vectored scrub implementation.
731  *
732  * If any of the previous scrub vectors recorded runtime errors or have
733  * sv_flags bits set that match the OFLAG bits in the barrier vector's
734  * sv_flags, set the barrier's sv_ret to -ECANCELED and return to userspace.
735  */
736 #define XFS_SCRUB_TYPE_BARRIER	(0xFFFFFFFF)
737 
738 /* i: Repair this metadata. */
739 #define XFS_SCRUB_IFLAG_REPAIR		(1u << 0)
740 
741 /* o: Metadata object needs repair. */
742 #define XFS_SCRUB_OFLAG_CORRUPT		(1u << 1)
743 
744 /*
745  * o: Metadata object could be optimized.  It's not corrupt, but
746  *    we could improve on it somehow.
747  */
748 #define XFS_SCRUB_OFLAG_PREEN		(1u << 2)
749 
750 /* o: Cross-referencing failed. */
751 #define XFS_SCRUB_OFLAG_XFAIL		(1u << 3)
752 
753 /* o: Metadata object disagrees with cross-referenced metadata. */
754 #define XFS_SCRUB_OFLAG_XCORRUPT	(1u << 4)
755 
756 /* o: Scan was not complete. */
757 #define XFS_SCRUB_OFLAG_INCOMPLETE	(1u << 5)
758 
759 /* o: Metadata object looked funny but isn't corrupt. */
760 #define XFS_SCRUB_OFLAG_WARNING		(1u << 6)
761 
762 /*
763  * o: IFLAG_REPAIR was set but metadata object did not need fixing or
764  *    optimization and has therefore not been altered.
765  */
766 #define XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED (1u << 7)
767 
768 /* i: Rebuild the data structure. */
769 #define XFS_SCRUB_IFLAG_FORCE_REBUILD	(1u << 8)
770 
771 #define XFS_SCRUB_FLAGS_IN	(XFS_SCRUB_IFLAG_REPAIR | \
772 				 XFS_SCRUB_IFLAG_FORCE_REBUILD)
773 #define XFS_SCRUB_FLAGS_OUT	(XFS_SCRUB_OFLAG_CORRUPT | \
774 				 XFS_SCRUB_OFLAG_PREEN | \
775 				 XFS_SCRUB_OFLAG_XFAIL | \
776 				 XFS_SCRUB_OFLAG_XCORRUPT | \
777 				 XFS_SCRUB_OFLAG_INCOMPLETE | \
778 				 XFS_SCRUB_OFLAG_WARNING | \
779 				 XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED)
780 #define XFS_SCRUB_FLAGS_ALL	(XFS_SCRUB_FLAGS_IN | XFS_SCRUB_FLAGS_OUT)
781 
782 /* Vectored scrub calls to reduce the number of kernel transitions. */
783 
784 struct xfs_scrub_vec {
785 	__u32 sv_type;		/* XFS_SCRUB_TYPE_* */
786 	__u32 sv_flags;		/* XFS_SCRUB_FLAGS_* */
787 	__s32 sv_ret;		/* 0 or a negative error code */
788 	__u32 sv_reserved;	/* must be zero */
789 };
790 
791 /* Vectored metadata scrub control structure. */
792 struct xfs_scrub_vec_head {
793 	__u64 svh_ino;		/* inode number. */
794 	__u32 svh_gen;		/* inode generation. */
795 	__u32 svh_agno;		/* ag number. */
796 	__u32 svh_flags;	/* XFS_SCRUB_VEC_FLAGS_* */
797 	__u16 svh_rest_us;	/* wait this much time between vector items */
798 	__u16 svh_nr;		/* number of svh_vectors */
799 	__u64 svh_reserved;	/* must be zero */
800 	__u64 svh_vectors;	/* pointer to buffer of xfs_scrub_vec */
801 };
802 
803 #define XFS_SCRUB_VEC_FLAGS_ALL		(0)
804 
805 /*
806  * ioctl limits
807  */
808 #ifdef XATTR_LIST_MAX
809 #  define XFS_XATTR_LIST_MAX XATTR_LIST_MAX
810 #else
811 #  define XFS_XATTR_LIST_MAX 65536
812 #endif
813 
814 /*
815  * Exchange part of file1 with part of the file that this ioctl that is being
816  * called against (which we'll call file2).  Filesystems must be able to
817  * restart and complete the operation even after the system goes down.
818  */
819 struct xfs_exchange_range {
820 	__s32		file1_fd;
821 	__u32		pad;		/* must be zeroes */
822 	__u64		file1_offset;	/* file1 offset, bytes */
823 	__u64		file2_offset;	/* file2 offset, bytes */
824 	__u64		length;		/* bytes to exchange */
825 
826 	__u64		flags;		/* see XFS_EXCHANGE_RANGE_* below */
827 };
828 
829 /*
830  * Using the same definition of file2 as struct xfs_exchange_range, commit the
831  * contents of file1 into file2 if file2 has the same inode number, mtime, and
832  * ctime as the arguments provided to the call.  The old contents of file2 will
833  * be moved to file1.
834  *
835  * Returns -EBUSY if there isn't an exact match for the file2 fields.
836  *
837  * Filesystems must be able to restart and complete the operation even after
838  * the system goes down.
839  */
840 struct xfs_commit_range {
841 	__s32		file1_fd;
842 	__u32		pad;		/* must be zeroes */
843 	__u64		file1_offset;	/* file1 offset, bytes */
844 	__u64		file2_offset;	/* file2 offset, bytes */
845 	__u64		length;		/* bytes to exchange */
846 
847 	__u64		flags;		/* see XFS_EXCHANGE_RANGE_* below */
848 
849 	/* opaque file2 metadata for freshness checks */
850 	__u64		file2_freshness[6];
851 };
852 
853 /*
854  * Exchange file data all the way to the ends of both files, and then exchange
855  * the file sizes.  This flag can be used to replace a file's contents with a
856  * different amount of data.  length will be ignored.
857  */
858 #define XFS_EXCHANGE_RANGE_TO_EOF	(1ULL << 0)
859 
860 /* Flush all changes in file data and file metadata to disk before returning. */
861 #define XFS_EXCHANGE_RANGE_DSYNC	(1ULL << 1)
862 
863 /* Dry run; do all the parameter verification but do not change anything. */
864 #define XFS_EXCHANGE_RANGE_DRY_RUN	(1ULL << 2)
865 
866 /*
867  * Exchange only the parts of the two files where the file allocation units
868  * mapped to file1's range have been written to.  This can accelerate
869  * scatter-gather atomic writes with a temp file if all writes are aligned to
870  * the file allocation unit.
871  */
872 #define XFS_EXCHANGE_RANGE_FILE1_WRITTEN (1ULL << 3)
873 
874 #define XFS_EXCHANGE_RANGE_ALL_FLAGS	(XFS_EXCHANGE_RANGE_TO_EOF | \
875 					 XFS_EXCHANGE_RANGE_DSYNC | \
876 					 XFS_EXCHANGE_RANGE_DRY_RUN | \
877 					 XFS_EXCHANGE_RANGE_FILE1_WRITTEN)
878 
879 /* Iterating parent pointers of files. */
880 
881 /* target was the root directory */
882 #define XFS_GETPARENTS_OFLAG_ROOT	(1U << 0)
883 
884 /* Cursor is done iterating pptrs */
885 #define XFS_GETPARENTS_OFLAG_DONE	(1U << 1)
886 
887 #define XFS_GETPARENTS_OFLAGS_ALL	(XFS_GETPARENTS_OFLAG_ROOT | \
888 					 XFS_GETPARENTS_OFLAG_DONE)
889 
890 #define XFS_GETPARENTS_IFLAGS_ALL	(0)
891 
892 struct xfs_getparents_rec {
893 	struct xfs_handle	gpr_parent; /* Handle to parent */
894 	__u32			gpr_reclen; /* Length of entire record */
895 	__u32			gpr_reserved; /* zero */
896 	char			gpr_name[]; /* Null-terminated filename */
897 };
898 
899 /* Iterate through this file's directory parent pointers */
900 struct xfs_getparents {
901 	/*
902 	 * Structure to track progress in iterating the parent pointers.
903 	 * Must be initialized to zeroes before the first ioctl call, and
904 	 * not touched by callers after that.
905 	 */
906 	struct xfs_attrlist_cursor	gp_cursor;
907 
908 	/* Input flags: XFS_GETPARENTS_IFLAG* */
909 	__u16				gp_iflags;
910 
911 	/* Output flags: XFS_GETPARENTS_OFLAG* */
912 	__u16				gp_oflags;
913 
914 	/* Size of the gp_buffer in bytes */
915 	__u32				gp_bufsize;
916 
917 	/* Must be set to zero */
918 	__u64				gp_reserved;
919 
920 	/* Pointer to a buffer in which to place xfs_getparents_rec */
921 	__u64				gp_buffer;
922 };
923 
924 static inline struct xfs_getparents_rec *
xfs_getparents_first_rec(struct xfs_getparents * gp)925 xfs_getparents_first_rec(struct xfs_getparents *gp)
926 {
927 	return (struct xfs_getparents_rec *)(uintptr_t)gp->gp_buffer;
928 }
929 
930 static inline struct xfs_getparents_rec *
xfs_getparents_next_rec(struct xfs_getparents * gp,struct xfs_getparents_rec * gpr)931 xfs_getparents_next_rec(struct xfs_getparents *gp,
932 			struct xfs_getparents_rec *gpr)
933 {
934 	void *next = ((char *)gpr + gpr->gpr_reclen);
935 	void *end = (void *)(uintptr_t)(gp->gp_buffer + gp->gp_bufsize);
936 
937 	if (next >= end)
938 		return NULL;
939 
940 	return (struct xfs_getparents_rec *)next;
941 }
942 
943 /* Iterate through this file handle's directory parent pointers. */
944 struct xfs_getparents_by_handle {
945 	/* Handle to file whose parents we want. */
946 	struct xfs_handle		gph_handle;
947 
948 	struct xfs_getparents		gph_request;
949 };
950 
951 /*
952  * ioctl commands that are used by Linux filesystems
953  */
954 #define XFS_IOC_GETXFLAGS	FS_IOC_GETFLAGS
955 #define XFS_IOC_SETXFLAGS	FS_IOC_SETFLAGS
956 #define XFS_IOC_GETVERSION	FS_IOC_GETVERSION
957 
958 /*
959  * ioctl commands that replace IRIX fcntl()'s
960  * For 'documentation' purposed more than anything else,
961  * the "cmd #" field reflects the IRIX fcntl number.
962  */
963 /*	XFS_IOC_ALLOCSP ------- deprecated 10	 */
964 /*	XFS_IOC_FREESP -------- deprecated 11	 */
965 #define XFS_IOC_DIOINFO		_IOR ('X', 30, struct dioattr)
966 #define XFS_IOC_FSGETXATTR	FS_IOC_FSGETXATTR
967 #define XFS_IOC_FSSETXATTR	FS_IOC_FSSETXATTR
968 /*	XFS_IOC_ALLOCSP64 ----- deprecated 36	 */
969 /*	XFS_IOC_FREESP64 ------ deprecated 37	 */
970 #define XFS_IOC_GETBMAP		_IOWR('X', 38, struct getbmap)
971 /*      XFS_IOC_FSSETDM ------- deprecated 39    */
972 #define XFS_IOC_RESVSP		_IOW ('X', 40, struct xfs_flock64)
973 #define XFS_IOC_UNRESVSP	_IOW ('X', 41, struct xfs_flock64)
974 #define XFS_IOC_RESVSP64	_IOW ('X', 42, struct xfs_flock64)
975 #define XFS_IOC_UNRESVSP64	_IOW ('X', 43, struct xfs_flock64)
976 #define XFS_IOC_GETBMAPA	_IOWR('X', 44, struct getbmap)
977 #define XFS_IOC_FSGETXATTRA	_IOR ('X', 45, struct fsxattr)
978 /*	XFS_IOC_SETBIOSIZE ---- deprecated 46	   */
979 /*	XFS_IOC_GETBIOSIZE ---- deprecated 47	   */
980 #define XFS_IOC_GETBMAPX	_IOWR('X', 56, struct getbmap)
981 #define XFS_IOC_ZERO_RANGE	_IOW ('X', 57, struct xfs_flock64)
982 #define XFS_IOC_FREE_EOFBLOCKS	_IOR ('X', 58, struct xfs_fs_eofblocks)
983 /*	XFS_IOC_GETFSMAP ------ hoisted 59         */
984 #define XFS_IOC_SCRUB_METADATA	_IOWR('X', 60, struct xfs_scrub_metadata)
985 #define XFS_IOC_AG_GEOMETRY	_IOWR('X', 61, struct xfs_ag_geometry)
986 #define XFS_IOC_GETPARENTS	_IOWR('X', 62, struct xfs_getparents)
987 #define XFS_IOC_GETPARENTS_BY_HANDLE _IOWR('X', 63, struct xfs_getparents_by_handle)
988 #define XFS_IOC_SCRUBV_METADATA	_IOWR('X', 64, struct xfs_scrub_vec_head)
989 
990 /*
991  * ioctl commands that replace IRIX syssgi()'s
992  */
993 #define XFS_IOC_FSGEOMETRY_V1	     _IOR ('X', 100, struct xfs_fsop_geom_v1)
994 #define XFS_IOC_FSBULKSTAT	     _IOWR('X', 101, struct xfs_fsop_bulkreq)
995 #define XFS_IOC_FSBULKSTAT_SINGLE    _IOWR('X', 102, struct xfs_fsop_bulkreq)
996 #define XFS_IOC_FSINUMBERS	     _IOWR('X', 103, struct xfs_fsop_bulkreq)
997 #define XFS_IOC_PATH_TO_FSHANDLE     _IOWR('X', 104, struct xfs_fsop_handlereq)
998 #define XFS_IOC_PATH_TO_HANDLE	     _IOWR('X', 105, struct xfs_fsop_handlereq)
999 #define XFS_IOC_FD_TO_HANDLE	     _IOWR('X', 106, struct xfs_fsop_handlereq)
1000 #define XFS_IOC_OPEN_BY_HANDLE	     _IOWR('X', 107, struct xfs_fsop_handlereq)
1001 #define XFS_IOC_READLINK_BY_HANDLE   _IOWR('X', 108, struct xfs_fsop_handlereq)
1002 #define XFS_IOC_SWAPEXT		     _IOWR('X', 109, struct xfs_swapext)
1003 #define XFS_IOC_FSGROWFSDATA	     _IOW ('X', 110, struct xfs_growfs_data)
1004 #define XFS_IOC_FSGROWFSLOG	     _IOW ('X', 111, struct xfs_growfs_log)
1005 #define XFS_IOC_FSGROWFSRT	     _IOW ('X', 112, struct xfs_growfs_rt)
1006 #define XFS_IOC_FSCOUNTS	     _IOR ('X', 113, struct xfs_fsop_counts)
1007 #define XFS_IOC_SET_RESBLKS	     _IOWR('X', 114, struct xfs_fsop_resblks)
1008 #define XFS_IOC_GET_RESBLKS	     _IOR ('X', 115, struct xfs_fsop_resblks)
1009 #define XFS_IOC_ERROR_INJECTION	     _IOW ('X', 116, struct xfs_error_injection)
1010 #define XFS_IOC_ERROR_CLEARALL	     _IOW ('X', 117, struct xfs_error_injection)
1011 /*	XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118	 */
1012 
1013 #define XFS_IOC_FREEZE		     _IOWR('X', 119, int)	/* aka FIFREEZE */
1014 #define XFS_IOC_THAW		     _IOWR('X', 120, int)	/* aka FITHAW */
1015 
1016 /*      XFS_IOC_FSSETDM_BY_HANDLE -- deprecated 121      */
1017 #define XFS_IOC_ATTRLIST_BY_HANDLE   _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq)
1018 #define XFS_IOC_ATTRMULTI_BY_HANDLE  _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq)
1019 #define XFS_IOC_FSGEOMETRY_V4	     _IOR ('X', 124, struct xfs_fsop_geom_v4)
1020 #define XFS_IOC_GOINGDOWN	     _IOR ('X', 125, uint32_t)
1021 #define XFS_IOC_FSGEOMETRY	     _IOR ('X', 126, struct xfs_fsop_geom)
1022 #define XFS_IOC_BULKSTAT	     _IOR ('X', 127, struct xfs_bulkstat_req)
1023 #define XFS_IOC_INUMBERS	     _IOR ('X', 128, struct xfs_inumbers_req)
1024 #define XFS_IOC_EXCHANGE_RANGE	     _IOW ('X', 129, struct xfs_exchange_range)
1025 #define XFS_IOC_START_COMMIT	     _IOR ('X', 130, struct xfs_commit_range)
1026 #define XFS_IOC_COMMIT_RANGE	     _IOW ('X', 131, struct xfs_commit_range)
1027 /*	XFS_IOC_GETFSUUID ---------- deprecated 140	 */
1028 
1029 
1030 #ifndef HAVE_BBMACROS
1031 /*
1032  * Block I/O parameterization.	A basic block (BB) is the lowest size of
1033  * filesystem allocation, and must equal 512.  Length units given to bio
1034  * routines are in BB's.
1035  */
1036 #define BBSHIFT		9
1037 #define BBSIZE		(1<<BBSHIFT)
1038 #define BBMASK		(BBSIZE-1)
1039 #define BTOBB(bytes)	(((__u64)(bytes) + BBSIZE - 1) >> BBSHIFT)
1040 #define BTOBBT(bytes)	((__u64)(bytes) >> BBSHIFT)
1041 #define BBTOB(bbs)	((bbs) << BBSHIFT)
1042 #endif
1043 
1044 #endif	/* __XFS_FS_H__ */
1045