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 __u32 rgextents; /* rt extents in a realtime group */
191 __u32 rgcount; /* number of realtime groups */
192 __u64 reserved[16]; /* reserved space */
193 };
194
195 #define XFS_FSOP_GEOM_SICK_COUNTERS (1 << 0) /* summary counters */
196 #define XFS_FSOP_GEOM_SICK_UQUOTA (1 << 1) /* user quota */
197 #define XFS_FSOP_GEOM_SICK_GQUOTA (1 << 2) /* group quota */
198 #define XFS_FSOP_GEOM_SICK_PQUOTA (1 << 3) /* project quota */
199 #define XFS_FSOP_GEOM_SICK_RT_BITMAP (1 << 4) /* realtime bitmap */
200 #define XFS_FSOP_GEOM_SICK_RT_SUMMARY (1 << 5) /* realtime summary */
201 #define XFS_FSOP_GEOM_SICK_QUOTACHECK (1 << 6) /* quota counts */
202 #define XFS_FSOP_GEOM_SICK_NLINKS (1 << 7) /* inode link counts */
203 #define XFS_FSOP_GEOM_SICK_METADIR (1 << 8) /* metadata directory */
204 #define XFS_FSOP_GEOM_SICK_METAPATH (1 << 9) /* metadir tree path */
205
206 /* Output for XFS_FS_COUNTS */
207 typedef struct xfs_fsop_counts {
208 __u64 freedata; /* free data section blocks */
209 __u64 freertx; /* free rt extents */
210 __u64 freeino; /* free inodes */
211 __u64 allocino; /* total allocated inodes */
212 } xfs_fsop_counts_t;
213
214 /* Input/Output for XFS_GET_RESBLKS and XFS_SET_RESBLKS */
215 typedef struct xfs_fsop_resblks {
216 __u64 resblks;
217 __u64 resblks_avail;
218 } xfs_fsop_resblks_t;
219
220 #define XFS_FSOP_GEOM_VERSION 0
221 #define XFS_FSOP_GEOM_VERSION_V5 5
222
223 #define XFS_FSOP_GEOM_FLAGS_ATTR (1 << 0) /* attributes in use */
224 #define XFS_FSOP_GEOM_FLAGS_NLINK (1 << 1) /* 32-bit nlink values */
225 #define XFS_FSOP_GEOM_FLAGS_QUOTA (1 << 2) /* quotas enabled */
226 #define XFS_FSOP_GEOM_FLAGS_IALIGN (1 << 3) /* inode alignment */
227 #define XFS_FSOP_GEOM_FLAGS_DALIGN (1 << 4) /* large data alignment */
228 #define XFS_FSOP_GEOM_FLAGS_SHARED (1 << 5) /* read-only shared */
229 #define XFS_FSOP_GEOM_FLAGS_EXTFLG (1 << 6) /* special extent flag */
230 #define XFS_FSOP_GEOM_FLAGS_DIRV2 (1 << 7) /* directory version 2 */
231 #define XFS_FSOP_GEOM_FLAGS_LOGV2 (1 << 8) /* log format version 2 */
232 #define XFS_FSOP_GEOM_FLAGS_SECTOR (1 << 9) /* sector sizes >1BB */
233 #define XFS_FSOP_GEOM_FLAGS_ATTR2 (1 << 10) /* inline attributes rework */
234 #define XFS_FSOP_GEOM_FLAGS_PROJID32 (1 << 11) /* 32-bit project IDs */
235 #define XFS_FSOP_GEOM_FLAGS_DIRV2CI (1 << 12) /* ASCII only CI names */
236 /* -- Do not use -- (1 << 13) SGI parent pointers */
237 #define XFS_FSOP_GEOM_FLAGS_LAZYSB (1 << 14) /* lazy superblock counters */
238 #define XFS_FSOP_GEOM_FLAGS_V5SB (1 << 15) /* version 5 superblock */
239 #define XFS_FSOP_GEOM_FLAGS_FTYPE (1 << 16) /* inode directory types */
240 #define XFS_FSOP_GEOM_FLAGS_FINOBT (1 << 17) /* free inode btree */
241 #define XFS_FSOP_GEOM_FLAGS_SPINODES (1 << 18) /* sparse inode chunks */
242 #define XFS_FSOP_GEOM_FLAGS_RMAPBT (1 << 19) /* reverse mapping btree */
243 #define XFS_FSOP_GEOM_FLAGS_REFLINK (1 << 20) /* files can share blocks */
244 #define XFS_FSOP_GEOM_FLAGS_BIGTIME (1 << 21) /* 64-bit nsec timestamps */
245 #define XFS_FSOP_GEOM_FLAGS_INOBTCNT (1 << 22) /* inobt btree counter */
246 #define XFS_FSOP_GEOM_FLAGS_NREXT64 (1 << 23) /* large extent counters */
247 #define XFS_FSOP_GEOM_FLAGS_EXCHANGE_RANGE (1 << 24) /* exchange range */
248 #define XFS_FSOP_GEOM_FLAGS_PARENT (1 << 25) /* linux parent pointers */
249 #define XFS_FSOP_GEOM_FLAGS_METADIR (1 << 26) /* metadata directories */
250
251 /*
252 * Minimum and maximum sizes need for growth checks.
253 *
254 * Block counts are in units of filesystem blocks, not basic blocks.
255 */
256 #define XFS_MIN_AG_BLOCKS 64
257 #define XFS_MIN_LOG_BLOCKS 512ULL
258 #define XFS_MAX_LOG_BLOCKS (1024 * 1024ULL)
259 #define XFS_MIN_LOG_BYTES (10 * 1024 * 1024ULL)
260
261 /*
262 * Limits on sb_agblocks/sb_agblklog -- mkfs won't format AGs smaller than
263 * 16MB or larger than 1TB.
264 */
265 #define XFS_MIN_AG_BYTES (1ULL << 24) /* 16 MB */
266 #define XFS_MAX_AG_BYTES (1ULL << 40) /* 1 TB */
267 #define XFS_MAX_AG_BLOCKS (XFS_MAX_AG_BYTES / XFS_MIN_BLOCKSIZE)
268 #define XFS_MAX_CRC_AG_BLOCKS (XFS_MAX_AG_BYTES / XFS_MIN_CRC_BLOCKSIZE)
269
270 #define XFS_MAX_AGNUMBER ((xfs_agnumber_t)(NULLAGNUMBER - 1))
271
272 /* keep the maximum size under 2^31 by a small amount */
273 #define XFS_MAX_LOG_BYTES \
274 ((2 * 1024 * 1024 * 1024ULL) - XFS_MIN_LOG_BYTES)
275
276 /* Used for sanity checks on superblock */
277 #define XFS_MAX_DBLOCKS(s) ((xfs_rfsblock_t)(s)->sb_agcount * (s)->sb_agblocks)
278 #define XFS_MIN_DBLOCKS(s) ((xfs_rfsblock_t)((s)->sb_agcount - 1) * \
279 (s)->sb_agblocks + XFS_MIN_AG_BLOCKS)
280
281 /*
282 * Output for XFS_IOC_AG_GEOMETRY
283 */
284 struct xfs_ag_geometry {
285 uint32_t ag_number; /* i/o: AG number */
286 uint32_t ag_length; /* o: length in blocks */
287 uint32_t ag_freeblks; /* o: free space */
288 uint32_t ag_icount; /* o: inodes allocated */
289 uint32_t ag_ifree; /* o: inodes free */
290 uint32_t ag_sick; /* o: sick things in ag */
291 uint32_t ag_checked; /* o: checked metadata in ag */
292 uint32_t ag_flags; /* i/o: flags for this ag */
293 uint64_t ag_reserved[12];/* o: zero */
294 };
295 #define XFS_AG_GEOM_SICK_SB (1 << 0) /* superblock */
296 #define XFS_AG_GEOM_SICK_AGF (1 << 1) /* AGF header */
297 #define XFS_AG_GEOM_SICK_AGFL (1 << 2) /* AGFL header */
298 #define XFS_AG_GEOM_SICK_AGI (1 << 3) /* AGI header */
299 #define XFS_AG_GEOM_SICK_BNOBT (1 << 4) /* free space by block */
300 #define XFS_AG_GEOM_SICK_CNTBT (1 << 5) /* free space by length */
301 #define XFS_AG_GEOM_SICK_INOBT (1 << 6) /* inode index */
302 #define XFS_AG_GEOM_SICK_FINOBT (1 << 7) /* free inode index */
303 #define XFS_AG_GEOM_SICK_RMAPBT (1 << 8) /* reverse mappings */
304 #define XFS_AG_GEOM_SICK_REFCNTBT (1 << 9) /* reference counts */
305 #define XFS_AG_GEOM_SICK_INODES (1 << 10) /* bad inodes were seen */
306
307 /*
308 * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT
309 */
310 typedef struct xfs_growfs_data {
311 __u64 newblocks; /* new data subvol size, fsblocks */
312 __u32 imaxpct; /* new inode space percentage limit */
313 } xfs_growfs_data_t;
314
315 typedef struct xfs_growfs_log {
316 __u32 newblocks; /* new log size, fsblocks */
317 __u32 isint; /* 1 if new log is internal */
318 } xfs_growfs_log_t;
319
320 typedef struct xfs_growfs_rt {
321 __u64 newblocks; /* new realtime size, fsblocks */
322 __u32 extsize; /* new realtime extent size, fsblocks */
323 } xfs_growfs_rt_t;
324
325
326 /*
327 * Structures returned from ioctl XFS_IOC_FSBULKSTAT & XFS_IOC_FSBULKSTAT_SINGLE
328 */
329 typedef struct xfs_bstime {
330 __kernel_long_t tv_sec; /* seconds */
331 __s32 tv_nsec; /* and nanoseconds */
332 } xfs_bstime_t;
333
334 struct xfs_bstat {
335 __u64 bs_ino; /* inode number */
336 __u16 bs_mode; /* type and mode */
337 __u16 bs_nlink; /* number of links */
338 __u32 bs_uid; /* user id */
339 __u32 bs_gid; /* group id */
340 __u32 bs_rdev; /* device value */
341 __s32 bs_blksize; /* block size */
342 __s64 bs_size; /* file size */
343 xfs_bstime_t bs_atime; /* access time */
344 xfs_bstime_t bs_mtime; /* modify time */
345 xfs_bstime_t bs_ctime; /* inode change time */
346 int64_t bs_blocks; /* number of blocks */
347 __u32 bs_xflags; /* extended flags */
348 __s32 bs_extsize; /* extent size */
349 __s32 bs_extents; /* number of extents */
350 __u32 bs_gen; /* generation count */
351 __u16 bs_projid_lo; /* lower part of project id */
352 #define bs_projid bs_projid_lo /* (previously just bs_projid) */
353 __u16 bs_forkoff; /* inode fork offset in bytes */
354 __u16 bs_projid_hi; /* higher part of project id */
355 uint16_t bs_sick; /* sick inode metadata */
356 uint16_t bs_checked; /* checked inode metadata */
357 unsigned char bs_pad[2]; /* pad space, unused */
358 __u32 bs_cowextsize; /* cow extent size */
359 __u32 bs_dmevmask; /* DMIG event mask */
360 __u16 bs_dmstate; /* DMIG state info */
361 __u16 bs_aextents; /* attribute number of extents */
362 };
363
364 /* New bulkstat structure that reports v5 features and fixes padding issues */
365 struct xfs_bulkstat {
366 uint64_t bs_ino; /* inode number */
367 uint64_t bs_size; /* file size */
368
369 uint64_t bs_blocks; /* number of blocks */
370 uint64_t bs_xflags; /* extended flags */
371
372 int64_t bs_atime; /* access time, seconds */
373 int64_t bs_mtime; /* modify time, seconds */
374
375 int64_t bs_ctime; /* inode change time, seconds */
376 int64_t bs_btime; /* creation time, seconds */
377
378 uint32_t bs_gen; /* generation count */
379 uint32_t bs_uid; /* user id */
380 uint32_t bs_gid; /* group id */
381 uint32_t bs_projectid; /* project id */
382
383 uint32_t bs_atime_nsec; /* access time, nanoseconds */
384 uint32_t bs_mtime_nsec; /* modify time, nanoseconds */
385 uint32_t bs_ctime_nsec; /* inode change time, nanoseconds */
386 uint32_t bs_btime_nsec; /* creation time, nanoseconds */
387
388 uint32_t bs_blksize; /* block size */
389 uint32_t bs_rdev; /* device value */
390 uint32_t bs_cowextsize_blks; /* cow extent size hint, blocks */
391 uint32_t bs_extsize_blks; /* extent size hint, blocks */
392
393 uint32_t bs_nlink; /* number of links */
394 uint32_t bs_extents; /* 32-bit data fork extent counter */
395 uint32_t bs_aextents; /* attribute number of extents */
396 uint16_t bs_version; /* structure version */
397 uint16_t bs_forkoff; /* inode fork offset in bytes */
398
399 uint16_t bs_sick; /* sick inode metadata */
400 uint16_t bs_checked; /* checked inode metadata */
401 uint16_t bs_mode; /* type and mode */
402 uint16_t bs_pad2; /* zeroed */
403 uint64_t bs_extents64; /* 64-bit data fork extent counter */
404
405 uint64_t bs_pad[6]; /* zeroed */
406 };
407
408 #define XFS_BULKSTAT_VERSION_V1 (1)
409 #define XFS_BULKSTAT_VERSION_V5 (5)
410
411 /* bs_sick flags */
412 #define XFS_BS_SICK_INODE (1 << 0) /* inode core */
413 #define XFS_BS_SICK_BMBTD (1 << 1) /* data fork */
414 #define XFS_BS_SICK_BMBTA (1 << 2) /* attr fork */
415 #define XFS_BS_SICK_BMBTC (1 << 3) /* cow fork */
416 #define XFS_BS_SICK_DIR (1 << 4) /* directory */
417 #define XFS_BS_SICK_XATTR (1 << 5) /* extended attributes */
418 #define XFS_BS_SICK_SYMLINK (1 << 6) /* symbolic link remote target */
419 #define XFS_BS_SICK_PARENT (1 << 7) /* parent pointers */
420 #define XFS_BS_SICK_DIRTREE (1 << 8) /* directory tree structure */
421
422 /*
423 * Project quota id helpers (previously projid was 16bit only
424 * and using two 16bit values to hold new 32bit projid was chosen
425 * to retain compatibility with "old" filesystems).
426 */
427 static inline uint32_t
bstat_get_projid(const struct xfs_bstat * bs)428 bstat_get_projid(const struct xfs_bstat *bs)
429 {
430 return (uint32_t)bs->bs_projid_hi << 16 | bs->bs_projid_lo;
431 }
432
433 /*
434 * The user-level BulkStat Request interface structure.
435 */
436 struct xfs_fsop_bulkreq {
437 __u64 __user *lastip; /* last inode # pointer */
438 __s32 icount; /* count of entries in buffer */
439 void __user *ubuffer;/* user buffer for inode desc. */
440 __s32 __user *ocount; /* output count pointer */
441 };
442
443 /*
444 * Structures returned from xfs_inumbers routine (XFS_IOC_FSINUMBERS).
445 */
446 struct xfs_inogrp {
447 __u64 xi_startino; /* starting inode number */
448 __s32 xi_alloccount; /* # bits set in allocmask */
449 __u64 xi_allocmask; /* mask of allocated inodes */
450 };
451
452 /* New inumbers structure that reports v5 features and fixes padding issues */
453 struct xfs_inumbers {
454 uint64_t xi_startino; /* starting inode number */
455 uint64_t xi_allocmask; /* mask of allocated inodes */
456 uint8_t xi_alloccount; /* # bits set in allocmask */
457 uint8_t xi_version; /* version */
458 uint8_t xi_padding[6]; /* zero */
459 };
460
461 #define XFS_INUMBERS_VERSION_V1 (1)
462 #define XFS_INUMBERS_VERSION_V5 (5)
463
464 /* Header for bulk inode requests. */
465 struct xfs_bulk_ireq {
466 uint64_t ino; /* I/O: start with this inode */
467 uint32_t flags; /* I/O: operation flags */
468 uint32_t icount; /* I: count of entries in buffer */
469 uint32_t ocount; /* O: count of entries filled out */
470 uint32_t agno; /* I: see comment for IREQ_AGNO */
471 uint64_t reserved[5]; /* must be zero */
472 };
473
474 /*
475 * Only return results from the specified @agno. If @ino is zero, start
476 * with the first inode of @agno.
477 */
478 #define XFS_BULK_IREQ_AGNO (1U << 0)
479
480 /*
481 * Return bulkstat information for a single inode, where @ino value is a
482 * special value, not a literal inode number. See the XFS_BULK_IREQ_SPECIAL_*
483 * values below. Not compatible with XFS_BULK_IREQ_AGNO.
484 */
485 #define XFS_BULK_IREQ_SPECIAL (1U << 1)
486
487 /*
488 * Return data fork extent count via xfs_bulkstat->bs_extents64 field and assign
489 * 0 to xfs_bulkstat->bs_extents when the flag is set. Otherwise, use
490 * xfs_bulkstat->bs_extents for returning data fork extent count and set
491 * xfs_bulkstat->bs_extents64 to 0. In the second case, return -EOVERFLOW and
492 * assign 0 to xfs_bulkstat->bs_extents if data fork extent count is larger than
493 * XFS_MAX_EXTCNT_DATA_FORK_OLD.
494 */
495 #define XFS_BULK_IREQ_NREXT64 (1U << 2)
496
497 /*
498 * Allow bulkstat to return information about metadata directories. This
499 * enables xfs_scrub to find them for scanning, as they are otherwise ordinary
500 * directories.
501 */
502 #define XFS_BULK_IREQ_METADIR (1U << 3)
503
504 #define XFS_BULK_IREQ_FLAGS_ALL (XFS_BULK_IREQ_AGNO | \
505 XFS_BULK_IREQ_SPECIAL | \
506 XFS_BULK_IREQ_NREXT64 | \
507 XFS_BULK_IREQ_METADIR)
508
509 /* Operate on the root directory inode. */
510 #define XFS_BULK_IREQ_SPECIAL_ROOT (1)
511
512 /*
513 * ioctl structures for v5 bulkstat and inumbers requests
514 */
515 struct xfs_bulkstat_req {
516 struct xfs_bulk_ireq hdr;
517 struct xfs_bulkstat bulkstat[];
518 };
519 #define XFS_BULKSTAT_REQ_SIZE(nr) (sizeof(struct xfs_bulkstat_req) + \
520 (nr) * sizeof(struct xfs_bulkstat))
521
522 struct xfs_inumbers_req {
523 struct xfs_bulk_ireq hdr;
524 struct xfs_inumbers inumbers[];
525 };
526 #define XFS_INUMBERS_REQ_SIZE(nr) (sizeof(struct xfs_inumbers_req) + \
527 (nr) * sizeof(struct xfs_inumbers))
528
529 /*
530 * Error injection.
531 */
532 typedef struct xfs_error_injection {
533 __s32 fd;
534 __s32 errtag;
535 } xfs_error_injection_t;
536
537
538 /*
539 * Speculative preallocation trimming.
540 */
541 #define XFS_EOFBLOCKS_VERSION 1
542 struct xfs_fs_eofblocks {
543 __u32 eof_version;
544 __u32 eof_flags;
545 uid_t eof_uid;
546 gid_t eof_gid;
547 prid_t eof_prid;
548 __u32 pad32;
549 __u64 eof_min_file_size;
550 __u64 pad64[12];
551 };
552
553 /* eof_flags values */
554 #define XFS_EOF_FLAGS_SYNC (1 << 0) /* sync/wait mode scan */
555 #define XFS_EOF_FLAGS_UID (1 << 1) /* filter by uid */
556 #define XFS_EOF_FLAGS_GID (1 << 2) /* filter by gid */
557 #define XFS_EOF_FLAGS_PRID (1 << 3) /* filter by project id */
558 #define XFS_EOF_FLAGS_MINFILESIZE (1 << 4) /* filter by min file size */
559 #define XFS_EOF_FLAGS_UNION (1 << 5) /* union filter algorithm;
560 * kernel only, not included in
561 * valid mask */
562 #define XFS_EOF_FLAGS_VALID \
563 (XFS_EOF_FLAGS_SYNC | \
564 XFS_EOF_FLAGS_UID | \
565 XFS_EOF_FLAGS_GID | \
566 XFS_EOF_FLAGS_PRID | \
567 XFS_EOF_FLAGS_MINFILESIZE)
568
569
570 /*
571 * The user-level Handle Request interface structure.
572 */
573 typedef struct xfs_fsop_handlereq {
574 __u32 fd; /* fd for FD_TO_HANDLE */
575 void __user *path; /* user pathname */
576 __u32 oflags; /* open flags */
577 void __user *ihandle;/* user supplied handle */
578 __u32 ihandlen; /* user supplied length */
579 void __user *ohandle;/* user buffer for handle */
580 __u32 __user *ohandlen;/* user buffer length */
581 } xfs_fsop_handlereq_t;
582
583 /*
584 * Compound structures for passing args through Handle Request interfaces
585 * xfs_attrlist_by_handle, xfs_attrmulti_by_handle
586 * - ioctls: XFS_IOC_ATTRLIST_BY_HANDLE, and XFS_IOC_ATTRMULTI_BY_HANDLE
587 */
588
589 /*
590 * Flags passed in xfs_attr_multiop.am_flags for the attr ioctl interface.
591 *
592 * NOTE: Must match the values declared in libattr without the XFS_IOC_ prefix.
593 */
594 #define XFS_IOC_ATTR_ROOT 0x0002 /* use attrs in root namespace */
595 #define XFS_IOC_ATTR_SECURE 0x0008 /* use attrs in security namespace */
596 #define XFS_IOC_ATTR_CREATE 0x0010 /* fail if attr already exists */
597 #define XFS_IOC_ATTR_REPLACE 0x0020 /* fail if attr does not exist */
598
599 typedef struct xfs_attrlist_cursor {
600 __u32 opaque[4];
601 } xfs_attrlist_cursor_t;
602
603 /*
604 * Define how lists of attribute names are returned to userspace from the
605 * XFS_IOC_ATTRLIST_BY_HANDLE ioctl. struct xfs_attrlist is the header at the
606 * beginning of the returned buffer, and a each entry in al_offset contains the
607 * relative offset of an xfs_attrlist_ent containing the actual entry.
608 *
609 * NOTE: struct xfs_attrlist must match struct attrlist defined in libattr, and
610 * struct xfs_attrlist_ent must match struct attrlist_ent defined in libattr.
611 */
612 struct xfs_attrlist {
613 __s32 al_count; /* number of entries in attrlist */
614 __s32 al_more; /* T/F: more attrs (do call again) */
615 __s32 al_offset[]; /* byte offsets of attrs [var-sized] */
616 };
617
618 struct xfs_attrlist_ent { /* data from attr_list() */
619 __u32 a_valuelen; /* number bytes in value of attr */
620 char a_name[]; /* attr name (NULL terminated) */
621 };
622
623 typedef struct xfs_fsop_attrlist_handlereq {
624 struct xfs_fsop_handlereq hreq; /* handle interface structure */
625 struct xfs_attrlist_cursor pos; /* opaque cookie, list offset */
626 __u32 flags; /* which namespace to use */
627 __u32 buflen; /* length of buffer supplied */
628 void __user *buffer; /* returned names */
629 } xfs_fsop_attrlist_handlereq_t;
630
631 typedef struct xfs_attr_multiop {
632 __u32 am_opcode;
633 #define ATTR_OP_GET 1 /* return the indicated attr's value */
634 #define ATTR_OP_SET 2 /* set/create the indicated attr/value pair */
635 #define ATTR_OP_REMOVE 3 /* remove the indicated attr */
636 __s32 am_error;
637 void __user *am_attrname;
638 void __user *am_attrvalue;
639 __u32 am_length;
640 __u32 am_flags; /* XFS_IOC_ATTR_* */
641 } xfs_attr_multiop_t;
642
643 typedef struct xfs_fsop_attrmulti_handlereq {
644 struct xfs_fsop_handlereq hreq; /* handle interface structure */
645 __u32 opcount;/* count of following multiop */
646 struct xfs_attr_multiop __user *ops; /* attr_multi data */
647 } xfs_fsop_attrmulti_handlereq_t;
648
649 /*
650 * per machine unique filesystem identifier types.
651 */
652 typedef struct xfs_fsid {
653 __u32 val[2]; /* file system id type */
654 } xfs_fsid_t;
655
656 typedef struct xfs_fid {
657 __u16 fid_len; /* length of remainder */
658 __u16 fid_pad;
659 __u32 fid_gen; /* generation number */
660 __u64 fid_ino; /* 64 bits inode number */
661 } xfs_fid_t;
662
663 typedef struct xfs_handle {
664 union {
665 __s64 align; /* force alignment of ha_fid */
666 xfs_fsid_t _ha_fsid; /* unique file system identifier */
667 } ha_u;
668 xfs_fid_t ha_fid; /* file system specific file ID */
669 } xfs_handle_t;
670 #define ha_fsid ha_u._ha_fsid
671
672 /*
673 * Structure passed to XFS_IOC_SWAPEXT
674 */
675 typedef struct xfs_swapext
676 {
677 int64_t sx_version; /* version */
678 #define XFS_SX_VERSION 0
679 int64_t sx_fdtarget; /* fd of target file */
680 int64_t sx_fdtmp; /* fd of tmp file */
681 xfs_off_t sx_offset; /* offset into file */
682 xfs_off_t sx_length; /* leng from offset */
683 char sx_pad[16]; /* pad space, unused */
684 struct xfs_bstat sx_stat; /* stat of target b4 copy */
685 } xfs_swapext_t;
686
687 /*
688 * Flags for going down operation
689 */
690 #define XFS_FSOP_GOING_FLAGS_DEFAULT 0x0 /* going down */
691 #define XFS_FSOP_GOING_FLAGS_LOGFLUSH 0x1 /* flush log but not data */
692 #define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH 0x2 /* don't flush log nor data */
693
694 /* metadata scrubbing */
695 struct xfs_scrub_metadata {
696 __u32 sm_type; /* What to check? */
697 __u32 sm_flags; /* flags; see below. */
698 __u64 sm_ino; /* inode number. */
699 __u32 sm_gen; /* inode generation. */
700 __u32 sm_agno; /* ag number. */
701 __u64 sm_reserved[5]; /* pad to 64 bytes */
702 };
703
704 /*
705 * Metadata types and flags for scrub operation.
706 */
707
708 /* Scrub subcommands. */
709 #define XFS_SCRUB_TYPE_PROBE 0 /* presence test ioctl */
710 #define XFS_SCRUB_TYPE_SB 1 /* superblock */
711 #define XFS_SCRUB_TYPE_AGF 2 /* AG free header */
712 #define XFS_SCRUB_TYPE_AGFL 3 /* AG free list */
713 #define XFS_SCRUB_TYPE_AGI 4 /* AG inode header */
714 #define XFS_SCRUB_TYPE_BNOBT 5 /* freesp by block btree */
715 #define XFS_SCRUB_TYPE_CNTBT 6 /* freesp by length btree */
716 #define XFS_SCRUB_TYPE_INOBT 7 /* inode btree */
717 #define XFS_SCRUB_TYPE_FINOBT 8 /* free inode btree */
718 #define XFS_SCRUB_TYPE_RMAPBT 9 /* reverse mapping btree */
719 #define XFS_SCRUB_TYPE_REFCNTBT 10 /* reference count btree */
720 #define XFS_SCRUB_TYPE_INODE 11 /* inode record */
721 #define XFS_SCRUB_TYPE_BMBTD 12 /* data fork block mapping */
722 #define XFS_SCRUB_TYPE_BMBTA 13 /* attr fork block mapping */
723 #define XFS_SCRUB_TYPE_BMBTC 14 /* CoW fork block mapping */
724 #define XFS_SCRUB_TYPE_DIR 15 /* directory */
725 #define XFS_SCRUB_TYPE_XATTR 16 /* extended attribute */
726 #define XFS_SCRUB_TYPE_SYMLINK 17 /* symbolic link */
727 #define XFS_SCRUB_TYPE_PARENT 18 /* parent pointers */
728 #define XFS_SCRUB_TYPE_RTBITMAP 19 /* realtime bitmap */
729 #define XFS_SCRUB_TYPE_RTSUM 20 /* realtime summary */
730 #define XFS_SCRUB_TYPE_UQUOTA 21 /* user quotas */
731 #define XFS_SCRUB_TYPE_GQUOTA 22 /* group quotas */
732 #define XFS_SCRUB_TYPE_PQUOTA 23 /* project quotas */
733 #define XFS_SCRUB_TYPE_FSCOUNTERS 24 /* fs summary counters */
734 #define XFS_SCRUB_TYPE_QUOTACHECK 25 /* quota counters */
735 #define XFS_SCRUB_TYPE_NLINKS 26 /* inode link counts */
736 #define XFS_SCRUB_TYPE_HEALTHY 27 /* everything checked out ok */
737 #define XFS_SCRUB_TYPE_DIRTREE 28 /* directory tree structure */
738 #define XFS_SCRUB_TYPE_METAPATH 29 /* metadata directory tree paths */
739 #define XFS_SCRUB_TYPE_RGSUPER 30 /* realtime superblock */
740
741 /* Number of scrub subcommands. */
742 #define XFS_SCRUB_TYPE_NR 31
743
744 /*
745 * This special type code only applies to the vectored scrub implementation.
746 *
747 * If any of the previous scrub vectors recorded runtime errors or have
748 * sv_flags bits set that match the OFLAG bits in the barrier vector's
749 * sv_flags, set the barrier's sv_ret to -ECANCELED and return to userspace.
750 */
751 #define XFS_SCRUB_TYPE_BARRIER (0xFFFFFFFF)
752
753 /* i: Repair this metadata. */
754 #define XFS_SCRUB_IFLAG_REPAIR (1u << 0)
755
756 /* o: Metadata object needs repair. */
757 #define XFS_SCRUB_OFLAG_CORRUPT (1u << 1)
758
759 /*
760 * o: Metadata object could be optimized. It's not corrupt, but
761 * we could improve on it somehow.
762 */
763 #define XFS_SCRUB_OFLAG_PREEN (1u << 2)
764
765 /* o: Cross-referencing failed. */
766 #define XFS_SCRUB_OFLAG_XFAIL (1u << 3)
767
768 /* o: Metadata object disagrees with cross-referenced metadata. */
769 #define XFS_SCRUB_OFLAG_XCORRUPT (1u << 4)
770
771 /* o: Scan was not complete. */
772 #define XFS_SCRUB_OFLAG_INCOMPLETE (1u << 5)
773
774 /* o: Metadata object looked funny but isn't corrupt. */
775 #define XFS_SCRUB_OFLAG_WARNING (1u << 6)
776
777 /*
778 * o: IFLAG_REPAIR was set but metadata object did not need fixing or
779 * optimization and has therefore not been altered.
780 */
781 #define XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED (1u << 7)
782
783 /* i: Rebuild the data structure. */
784 #define XFS_SCRUB_IFLAG_FORCE_REBUILD (1u << 8)
785
786 #define XFS_SCRUB_FLAGS_IN (XFS_SCRUB_IFLAG_REPAIR | \
787 XFS_SCRUB_IFLAG_FORCE_REBUILD)
788 #define XFS_SCRUB_FLAGS_OUT (XFS_SCRUB_OFLAG_CORRUPT | \
789 XFS_SCRUB_OFLAG_PREEN | \
790 XFS_SCRUB_OFLAG_XFAIL | \
791 XFS_SCRUB_OFLAG_XCORRUPT | \
792 XFS_SCRUB_OFLAG_INCOMPLETE | \
793 XFS_SCRUB_OFLAG_WARNING | \
794 XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED)
795 #define XFS_SCRUB_FLAGS_ALL (XFS_SCRUB_FLAGS_IN | XFS_SCRUB_FLAGS_OUT)
796
797 /* Vectored scrub calls to reduce the number of kernel transitions. */
798
799 struct xfs_scrub_vec {
800 __u32 sv_type; /* XFS_SCRUB_TYPE_* */
801 __u32 sv_flags; /* XFS_SCRUB_FLAGS_* */
802 __s32 sv_ret; /* 0 or a negative error code */
803 __u32 sv_reserved; /* must be zero */
804 };
805
806 /* Vectored metadata scrub control structure. */
807 struct xfs_scrub_vec_head {
808 __u64 svh_ino; /* inode number. */
809 __u32 svh_gen; /* inode generation. */
810 __u32 svh_agno; /* ag number. */
811 __u32 svh_flags; /* XFS_SCRUB_VEC_FLAGS_* */
812 __u16 svh_rest_us; /* wait this much time between vector items */
813 __u16 svh_nr; /* number of svh_vectors */
814 __u64 svh_reserved; /* must be zero */
815 __u64 svh_vectors; /* pointer to buffer of xfs_scrub_vec */
816 };
817
818 #define XFS_SCRUB_VEC_FLAGS_ALL (0)
819
820 /*
821 * i: sm_ino values for XFS_SCRUB_TYPE_METAPATH to select a metadata file for
822 * path checking.
823 */
824 #define XFS_SCRUB_METAPATH_PROBE (0) /* do we have a metapath scrubber? */
825 #define XFS_SCRUB_METAPATH_RTDIR (1) /* rtrgroups metadir */
826 #define XFS_SCRUB_METAPATH_RTBITMAP (2) /* per-rtg bitmap */
827 #define XFS_SCRUB_METAPATH_RTSUMMARY (3) /* per-rtg summary */
828 #define XFS_SCRUB_METAPATH_QUOTADIR (4) /* quota metadir */
829 #define XFS_SCRUB_METAPATH_USRQUOTA (5) /* user quota */
830 #define XFS_SCRUB_METAPATH_GRPQUOTA (6) /* group quota */
831 #define XFS_SCRUB_METAPATH_PRJQUOTA (7) /* project quota */
832
833 /* Number of metapath sm_ino values */
834 #define XFS_SCRUB_METAPATH_NR (8)
835
836 /*
837 * ioctl limits
838 */
839 #ifdef XATTR_LIST_MAX
840 # define XFS_XATTR_LIST_MAX XATTR_LIST_MAX
841 #else
842 # define XFS_XATTR_LIST_MAX 65536
843 #endif
844
845 /*
846 * Exchange part of file1 with part of the file that this ioctl that is being
847 * called against (which we'll call file2). Filesystems must be able to
848 * restart and complete the operation even after the system goes down.
849 */
850 struct xfs_exchange_range {
851 __s32 file1_fd;
852 __u32 pad; /* must be zeroes */
853 __u64 file1_offset; /* file1 offset, bytes */
854 __u64 file2_offset; /* file2 offset, bytes */
855 __u64 length; /* bytes to exchange */
856
857 __u64 flags; /* see XFS_EXCHANGE_RANGE_* below */
858 };
859
860 /*
861 * Using the same definition of file2 as struct xfs_exchange_range, commit the
862 * contents of file1 into file2 if file2 has the same inode number, mtime, and
863 * ctime as the arguments provided to the call. The old contents of file2 will
864 * be moved to file1.
865 *
866 * Returns -EBUSY if there isn't an exact match for the file2 fields.
867 *
868 * Filesystems must be able to restart and complete the operation even after
869 * the system goes down.
870 */
871 struct xfs_commit_range {
872 __s32 file1_fd;
873 __u32 pad; /* must be zeroes */
874 __u64 file1_offset; /* file1 offset, bytes */
875 __u64 file2_offset; /* file2 offset, bytes */
876 __u64 length; /* bytes to exchange */
877
878 __u64 flags; /* see XFS_EXCHANGE_RANGE_* below */
879
880 /* opaque file2 metadata for freshness checks */
881 __u64 file2_freshness[6];
882 };
883
884 /*
885 * Exchange file data all the way to the ends of both files, and then exchange
886 * the file sizes. This flag can be used to replace a file's contents with a
887 * different amount of data. length will be ignored.
888 */
889 #define XFS_EXCHANGE_RANGE_TO_EOF (1ULL << 0)
890
891 /* Flush all changes in file data and file metadata to disk before returning. */
892 #define XFS_EXCHANGE_RANGE_DSYNC (1ULL << 1)
893
894 /* Dry run; do all the parameter verification but do not change anything. */
895 #define XFS_EXCHANGE_RANGE_DRY_RUN (1ULL << 2)
896
897 /*
898 * Exchange only the parts of the two files where the file allocation units
899 * mapped to file1's range have been written to. This can accelerate
900 * scatter-gather atomic writes with a temp file if all writes are aligned to
901 * the file allocation unit.
902 */
903 #define XFS_EXCHANGE_RANGE_FILE1_WRITTEN (1ULL << 3)
904
905 #define XFS_EXCHANGE_RANGE_ALL_FLAGS (XFS_EXCHANGE_RANGE_TO_EOF | \
906 XFS_EXCHANGE_RANGE_DSYNC | \
907 XFS_EXCHANGE_RANGE_DRY_RUN | \
908 XFS_EXCHANGE_RANGE_FILE1_WRITTEN)
909
910 /* Iterating parent pointers of files. */
911
912 /* target was the root directory */
913 #define XFS_GETPARENTS_OFLAG_ROOT (1U << 0)
914
915 /* Cursor is done iterating pptrs */
916 #define XFS_GETPARENTS_OFLAG_DONE (1U << 1)
917
918 #define XFS_GETPARENTS_OFLAGS_ALL (XFS_GETPARENTS_OFLAG_ROOT | \
919 XFS_GETPARENTS_OFLAG_DONE)
920
921 #define XFS_GETPARENTS_IFLAGS_ALL (0)
922
923 struct xfs_getparents_rec {
924 struct xfs_handle gpr_parent; /* Handle to parent */
925 __u32 gpr_reclen; /* Length of entire record */
926 __u32 gpr_reserved; /* zero */
927 char gpr_name[]; /* Null-terminated filename */
928 };
929
930 /* Iterate through this file's directory parent pointers */
931 struct xfs_getparents {
932 /*
933 * Structure to track progress in iterating the parent pointers.
934 * Must be initialized to zeroes before the first ioctl call, and
935 * not touched by callers after that.
936 */
937 struct xfs_attrlist_cursor gp_cursor;
938
939 /* Input flags: XFS_GETPARENTS_IFLAG* */
940 __u16 gp_iflags;
941
942 /* Output flags: XFS_GETPARENTS_OFLAG* */
943 __u16 gp_oflags;
944
945 /* Size of the gp_buffer in bytes */
946 __u32 gp_bufsize;
947
948 /* Must be set to zero */
949 __u64 gp_reserved;
950
951 /* Pointer to a buffer in which to place xfs_getparents_rec */
952 __u64 gp_buffer;
953 };
954
955 static inline struct xfs_getparents_rec *
xfs_getparents_first_rec(struct xfs_getparents * gp)956 xfs_getparents_first_rec(struct xfs_getparents *gp)
957 {
958 return (struct xfs_getparents_rec *)(uintptr_t)gp->gp_buffer;
959 }
960
961 static inline struct xfs_getparents_rec *
xfs_getparents_next_rec(struct xfs_getparents * gp,struct xfs_getparents_rec * gpr)962 xfs_getparents_next_rec(struct xfs_getparents *gp,
963 struct xfs_getparents_rec *gpr)
964 {
965 void *next = ((char *)gpr + gpr->gpr_reclen);
966 void *end = (void *)(uintptr_t)(gp->gp_buffer + gp->gp_bufsize);
967
968 if (next >= end)
969 return NULL;
970
971 return (struct xfs_getparents_rec *)next;
972 }
973
974 /* Iterate through this file handle's directory parent pointers. */
975 struct xfs_getparents_by_handle {
976 /* Handle to file whose parents we want. */
977 struct xfs_handle gph_handle;
978
979 struct xfs_getparents gph_request;
980 };
981
982 /*
983 * Output for XFS_IOC_RTGROUP_GEOMETRY
984 */
985 struct xfs_rtgroup_geometry {
986 __u32 rg_number; /* i/o: rtgroup number */
987 __u32 rg_length; /* o: length in blocks */
988 __u32 rg_sick; /* o: sick things in ag */
989 __u32 rg_checked; /* o: checked metadata in ag */
990 __u32 rg_flags; /* i/o: flags for this ag */
991 __u32 rg_reserved[27]; /* o: zero */
992 };
993 #define XFS_RTGROUP_GEOM_SICK_SUPER (1U << 0) /* superblock */
994 #define XFS_RTGROUP_GEOM_SICK_BITMAP (1U << 1) /* rtbitmap */
995 #define XFS_RTGROUP_GEOM_SICK_SUMMARY (1U << 2) /* rtsummary */
996
997 /*
998 * ioctl commands that are used by Linux filesystems
999 */
1000 #define XFS_IOC_GETXFLAGS FS_IOC_GETFLAGS
1001 #define XFS_IOC_SETXFLAGS FS_IOC_SETFLAGS
1002 #define XFS_IOC_GETVERSION FS_IOC_GETVERSION
1003
1004 /*
1005 * ioctl commands that replace IRIX fcntl()'s
1006 * For 'documentation' purposed more than anything else,
1007 * the "cmd #" field reflects the IRIX fcntl number.
1008 */
1009 /* XFS_IOC_ALLOCSP ------- deprecated 10 */
1010 /* XFS_IOC_FREESP -------- deprecated 11 */
1011 #define XFS_IOC_DIOINFO _IOR ('X', 30, struct dioattr)
1012 #define XFS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
1013 #define XFS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
1014 /* XFS_IOC_ALLOCSP64 ----- deprecated 36 */
1015 /* XFS_IOC_FREESP64 ------ deprecated 37 */
1016 #define XFS_IOC_GETBMAP _IOWR('X', 38, struct getbmap)
1017 /* XFS_IOC_FSSETDM ------- deprecated 39 */
1018 #define XFS_IOC_RESVSP _IOW ('X', 40, struct xfs_flock64)
1019 #define XFS_IOC_UNRESVSP _IOW ('X', 41, struct xfs_flock64)
1020 #define XFS_IOC_RESVSP64 _IOW ('X', 42, struct xfs_flock64)
1021 #define XFS_IOC_UNRESVSP64 _IOW ('X', 43, struct xfs_flock64)
1022 #define XFS_IOC_GETBMAPA _IOWR('X', 44, struct getbmap)
1023 #define XFS_IOC_FSGETXATTRA _IOR ('X', 45, struct fsxattr)
1024 /* XFS_IOC_SETBIOSIZE ---- deprecated 46 */
1025 /* XFS_IOC_GETBIOSIZE ---- deprecated 47 */
1026 #define XFS_IOC_GETBMAPX _IOWR('X', 56, struct getbmap)
1027 #define XFS_IOC_ZERO_RANGE _IOW ('X', 57, struct xfs_flock64)
1028 #define XFS_IOC_FREE_EOFBLOCKS _IOR ('X', 58, struct xfs_fs_eofblocks)
1029 /* XFS_IOC_GETFSMAP ------ hoisted 59 */
1030 #define XFS_IOC_SCRUB_METADATA _IOWR('X', 60, struct xfs_scrub_metadata)
1031 #define XFS_IOC_AG_GEOMETRY _IOWR('X', 61, struct xfs_ag_geometry)
1032 #define XFS_IOC_GETPARENTS _IOWR('X', 62, struct xfs_getparents)
1033 #define XFS_IOC_GETPARENTS_BY_HANDLE _IOWR('X', 63, struct xfs_getparents_by_handle)
1034 #define XFS_IOC_SCRUBV_METADATA _IOWR('X', 64, struct xfs_scrub_vec_head)
1035 #define XFS_IOC_RTGROUP_GEOMETRY _IOWR('X', 65, struct xfs_rtgroup_geometry)
1036
1037 /*
1038 * ioctl commands that replace IRIX syssgi()'s
1039 */
1040 #define XFS_IOC_FSGEOMETRY_V1 _IOR ('X', 100, struct xfs_fsop_geom_v1)
1041 #define XFS_IOC_FSBULKSTAT _IOWR('X', 101, struct xfs_fsop_bulkreq)
1042 #define XFS_IOC_FSBULKSTAT_SINGLE _IOWR('X', 102, struct xfs_fsop_bulkreq)
1043 #define XFS_IOC_FSINUMBERS _IOWR('X', 103, struct xfs_fsop_bulkreq)
1044 #define XFS_IOC_PATH_TO_FSHANDLE _IOWR('X', 104, struct xfs_fsop_handlereq)
1045 #define XFS_IOC_PATH_TO_HANDLE _IOWR('X', 105, struct xfs_fsop_handlereq)
1046 #define XFS_IOC_FD_TO_HANDLE _IOWR('X', 106, struct xfs_fsop_handlereq)
1047 #define XFS_IOC_OPEN_BY_HANDLE _IOWR('X', 107, struct xfs_fsop_handlereq)
1048 #define XFS_IOC_READLINK_BY_HANDLE _IOWR('X', 108, struct xfs_fsop_handlereq)
1049 #define XFS_IOC_SWAPEXT _IOWR('X', 109, struct xfs_swapext)
1050 #define XFS_IOC_FSGROWFSDATA _IOW ('X', 110, struct xfs_growfs_data)
1051 #define XFS_IOC_FSGROWFSLOG _IOW ('X', 111, struct xfs_growfs_log)
1052 #define XFS_IOC_FSGROWFSRT _IOW ('X', 112, struct xfs_growfs_rt)
1053 #define XFS_IOC_FSCOUNTS _IOR ('X', 113, struct xfs_fsop_counts)
1054 #define XFS_IOC_SET_RESBLKS _IOWR('X', 114, struct xfs_fsop_resblks)
1055 #define XFS_IOC_GET_RESBLKS _IOR ('X', 115, struct xfs_fsop_resblks)
1056 #define XFS_IOC_ERROR_INJECTION _IOW ('X', 116, struct xfs_error_injection)
1057 #define XFS_IOC_ERROR_CLEARALL _IOW ('X', 117, struct xfs_error_injection)
1058 /* XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118 */
1059
1060 #define XFS_IOC_FREEZE _IOWR('X', 119, int) /* aka FIFREEZE */
1061 #define XFS_IOC_THAW _IOWR('X', 120, int) /* aka FITHAW */
1062
1063 /* XFS_IOC_FSSETDM_BY_HANDLE -- deprecated 121 */
1064 #define XFS_IOC_ATTRLIST_BY_HANDLE _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq)
1065 #define XFS_IOC_ATTRMULTI_BY_HANDLE _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq)
1066 #define XFS_IOC_FSGEOMETRY_V4 _IOR ('X', 124, struct xfs_fsop_geom_v4)
1067 #define XFS_IOC_GOINGDOWN _IOR ('X', 125, uint32_t)
1068 #define XFS_IOC_FSGEOMETRY _IOR ('X', 126, struct xfs_fsop_geom)
1069 #define XFS_IOC_BULKSTAT _IOR ('X', 127, struct xfs_bulkstat_req)
1070 #define XFS_IOC_INUMBERS _IOR ('X', 128, struct xfs_inumbers_req)
1071 #define XFS_IOC_EXCHANGE_RANGE _IOW ('X', 129, struct xfs_exchange_range)
1072 #define XFS_IOC_START_COMMIT _IOR ('X', 130, struct xfs_commit_range)
1073 #define XFS_IOC_COMMIT_RANGE _IOW ('X', 131, struct xfs_commit_range)
1074 /* XFS_IOC_GETFSUUID ---------- deprecated 140 */
1075
1076
1077 #ifndef HAVE_BBMACROS
1078 /*
1079 * Block I/O parameterization. A basic block (BB) is the lowest size of
1080 * filesystem allocation, and must equal 512. Length units given to bio
1081 * routines are in BB's.
1082 */
1083 #define BBSHIFT 9
1084 #define BBSIZE (1<<BBSHIFT)
1085 #define BBMASK (BBSIZE-1)
1086 #define BTOBB(bytes) (((__u64)(bytes) + BBSIZE - 1) >> BBSHIFT)
1087 #define BTOBBT(bytes) ((__u64)(bytes) >> BBSHIFT)
1088 #define BBTOB(bbs) ((bbs) << BBSHIFT)
1089 #endif
1090
1091 #endif /* __XFS_FS_H__ */
1092