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6cbd5570 CM |
1 | /* |
2 | * Copyright (C) 2007 Oracle. All rights reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public | |
6 | * License v2 as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
11 | * General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public | |
14 | * License along with this program; if not, write to the | |
15 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
16 | * Boston, MA 021110-1307, USA. | |
17 | */ | |
18 | ||
55e301fd FB |
19 | #ifndef _UAPI_LINUX_BTRFS_H |
20 | #define _UAPI_LINUX_BTRFS_H | |
21 | #include <linux/types.h> | |
c5739bba CM |
22 | #include <linux/ioctl.h> |
23 | ||
24 | #define BTRFS_IOCTL_MAGIC 0x94 | |
25 | #define BTRFS_VOL_NAME_MAX 255 | |
8a4b83cc | 26 | |
c071fcfd | 27 | /* this should be 4k */ |
72fd032e | 28 | #define BTRFS_PATH_NAME_MAX 4087 |
c5739bba | 29 | struct btrfs_ioctl_vol_args { |
3de4586c | 30 | __s64 fd; |
8a4b83cc | 31 | char name[BTRFS_PATH_NAME_MAX + 1]; |
c5739bba CM |
32 | }; |
33 | ||
3f6bcfbd SB |
34 | #define BTRFS_DEVICE_PATH_NAME_MAX 1024 |
35 | ||
fdfb1e4f | 36 | #define BTRFS_SUBVOL_CREATE_ASYNC (1ULL << 0) |
b83cc969 | 37 | #define BTRFS_SUBVOL_RDONLY (1ULL << 1) |
6f72c7e2 | 38 | #define BTRFS_SUBVOL_QGROUP_INHERIT (1ULL << 2) |
475f6387 JS |
39 | #define BTRFS_FSID_SIZE 16 |
40 | #define BTRFS_UUID_SIZE 16 | |
b2373f25 | 41 | #define BTRFS_UUID_UNPARSED_SIZE 37 |
fdfb1e4f | 42 | |
bed92eae AJ |
43 | #define BTRFS_QGROUP_INHERIT_SET_LIMITS (1ULL << 0) |
44 | ||
45 | struct btrfs_qgroup_limit { | |
46 | __u64 flags; | |
47 | __u64 max_rfer; | |
48 | __u64 max_excl; | |
49 | __u64 rsv_rfer; | |
50 | __u64 rsv_excl; | |
51 | }; | |
52 | ||
53 | struct btrfs_qgroup_inherit { | |
54 | __u64 flags; | |
55 | __u64 num_qgroups; | |
56 | __u64 num_ref_copies; | |
57 | __u64 num_excl_copies; | |
58 | struct btrfs_qgroup_limit lim; | |
59 | __u64 qgroups[0]; | |
60 | }; | |
61 | ||
62 | struct btrfs_ioctl_qgroup_limit_args { | |
63 | __u64 qgroupid; | |
64 | struct btrfs_qgroup_limit lim; | |
65 | }; | |
66 | ||
fdfb1e4f LZ |
67 | #define BTRFS_SUBVOL_NAME_MAX 4039 |
68 | struct btrfs_ioctl_vol_args_v2 { | |
72fd032e SW |
69 | __s64 fd; |
70 | __u64 transid; | |
fdfb1e4f | 71 | __u64 flags; |
6f72c7e2 AJ |
72 | union { |
73 | struct { | |
74 | __u64 size; | |
75 | struct btrfs_qgroup_inherit __user *qgroup_inherit; | |
76 | }; | |
77 | __u64 unused[4]; | |
78 | }; | |
fdfb1e4f | 79 | char name[BTRFS_SUBVOL_NAME_MAX + 1]; |
72fd032e SW |
80 | }; |
81 | ||
a2de733c AJ |
82 | /* |
83 | * structure to report errors and progress to userspace, either as a | |
84 | * result of a finished scrub, a canceled scrub or a progress inquiry | |
85 | */ | |
86 | struct btrfs_scrub_progress { | |
87 | __u64 data_extents_scrubbed; /* # of data extents scrubbed */ | |
88 | __u64 tree_extents_scrubbed; /* # of tree extents scrubbed */ | |
89 | __u64 data_bytes_scrubbed; /* # of data bytes scrubbed */ | |
90 | __u64 tree_bytes_scrubbed; /* # of tree bytes scrubbed */ | |
91 | __u64 read_errors; /* # of read errors encountered (EIO) */ | |
92 | __u64 csum_errors; /* # of failed csum checks */ | |
93 | __u64 verify_errors; /* # of occurences, where the metadata | |
94 | * of a tree block did not match the | |
95 | * expected values, like generation or | |
96 | * logical */ | |
97 | __u64 no_csum; /* # of 4k data block for which no csum | |
98 | * is present, probably the result of | |
99 | * data written with nodatasum */ | |
100 | __u64 csum_discards; /* # of csum for which no data was found | |
101 | * in the extent tree. */ | |
102 | __u64 super_errors; /* # of bad super blocks encountered */ | |
103 | __u64 malloc_errors; /* # of internal kmalloc errors. These | |
104 | * will likely cause an incomplete | |
105 | * scrub */ | |
106 | __u64 uncorrectable_errors; /* # of errors where either no intact | |
107 | * copy was found or the writeback | |
108 | * failed */ | |
109 | __u64 corrected_errors; /* # of errors corrected */ | |
110 | __u64 last_physical; /* last physical address scrubbed. In | |
111 | * case a scrub was aborted, this can | |
112 | * be used to restart the scrub */ | |
113 | __u64 unverified_errors; /* # of occurences where a read for a | |
114 | * full (64k) bio failed, but the re- | |
115 | * check succeeded for each 4k piece. | |
116 | * Intermittent error. */ | |
117 | }; | |
118 | ||
8628764e | 119 | #define BTRFS_SCRUB_READONLY 1 |
475f6387 JS |
120 | struct btrfs_ioctl_scrub_args { |
121 | __u64 devid; /* in */ | |
122 | __u64 start; /* in */ | |
123 | __u64 end; /* in */ | |
124 | __u64 flags; /* in */ | |
125 | struct btrfs_scrub_progress progress; /* out */ | |
126 | /* pad to 1k */ | |
127 | __u64 unused[(1024-32-sizeof(struct btrfs_scrub_progress))/8]; | |
128 | }; | |
129 | ||
e93c89c1 SB |
130 | #define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_ALWAYS 0 |
131 | #define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_AVOID 1 | |
132 | struct btrfs_ioctl_dev_replace_start_params { | |
133 | __u64 srcdevid; /* in, if 0, use srcdev_name instead */ | |
e93c89c1 SB |
134 | __u64 cont_reading_from_srcdev_mode; /* in, see #define |
135 | * above */ | |
3f6bcfbd SB |
136 | __u8 srcdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1]; /* in */ |
137 | __u8 tgtdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1]; /* in */ | |
e93c89c1 SB |
138 | }; |
139 | ||
140 | #define BTRFS_IOCTL_DEV_REPLACE_STATE_NEVER_STARTED 0 | |
141 | #define BTRFS_IOCTL_DEV_REPLACE_STATE_STARTED 1 | |
142 | #define BTRFS_IOCTL_DEV_REPLACE_STATE_FINISHED 2 | |
143 | #define BTRFS_IOCTL_DEV_REPLACE_STATE_CANCELED 3 | |
144 | #define BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED 4 | |
145 | struct btrfs_ioctl_dev_replace_status_params { | |
146 | __u64 replace_state; /* out, see #define above */ | |
147 | __u64 progress_1000; /* out, 0 <= x <= 1000 */ | |
148 | __u64 time_started; /* out, seconds since 1-Jan-1970 */ | |
149 | __u64 time_stopped; /* out, seconds since 1-Jan-1970 */ | |
150 | __u64 num_write_errors; /* out */ | |
151 | __u64 num_uncorrectable_read_errors; /* out */ | |
152 | }; | |
153 | ||
154 | #define BTRFS_IOCTL_DEV_REPLACE_CMD_START 0 | |
155 | #define BTRFS_IOCTL_DEV_REPLACE_CMD_STATUS 1 | |
156 | #define BTRFS_IOCTL_DEV_REPLACE_CMD_CANCEL 2 | |
157 | #define BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR 0 | |
158 | #define BTRFS_IOCTL_DEV_REPLACE_RESULT_NOT_STARTED 1 | |
159 | #define BTRFS_IOCTL_DEV_REPLACE_RESULT_ALREADY_STARTED 2 | |
2fc9f6ba | 160 | #define BTRFS_IOCTL_DEV_REPLACE_RESULT_SCRUB_INPROGRESS 3 |
e93c89c1 SB |
161 | struct btrfs_ioctl_dev_replace_args { |
162 | __u64 cmd; /* in */ | |
163 | __u64 result; /* out */ | |
164 | ||
165 | union { | |
166 | struct btrfs_ioctl_dev_replace_start_params start; | |
167 | struct btrfs_ioctl_dev_replace_status_params status; | |
168 | }; /* in/out */ | |
169 | ||
170 | __u64 spare[64]; | |
171 | }; | |
172 | ||
475f6387 JS |
173 | struct btrfs_ioctl_dev_info_args { |
174 | __u64 devid; /* in/out */ | |
175 | __u8 uuid[BTRFS_UUID_SIZE]; /* in/out */ | |
176 | __u64 bytes_used; /* out */ | |
177 | __u64 total_bytes; /* out */ | |
178 | __u64 unused[379]; /* pad to 4k */ | |
179 | __u8 path[BTRFS_DEVICE_PATH_NAME_MAX]; /* out */ | |
180 | }; | |
181 | ||
182 | struct btrfs_ioctl_fs_info_args { | |
183 | __u64 max_id; /* out */ | |
184 | __u64 num_devices; /* out */ | |
185 | __u8 fsid[BTRFS_FSID_SIZE]; /* out */ | |
80a773fb DS |
186 | __u32 nodesize; /* out */ |
187 | __u32 sectorsize; /* out */ | |
188 | __u32 clone_alignment; /* out */ | |
189 | __u32 reserved32; | |
190 | __u64 reserved[122]; /* pad to 1k */ | |
475f6387 JS |
191 | }; |
192 | ||
2eaa055f JM |
193 | struct btrfs_ioctl_feature_flags { |
194 | __u64 compat_flags; | |
195 | __u64 compat_ro_flags; | |
196 | __u64 incompat_flags; | |
197 | }; | |
198 | ||
837d5b6e ID |
199 | /* balance control ioctl modes */ |
200 | #define BTRFS_BALANCE_CTL_PAUSE 1 | |
a7e99c69 | 201 | #define BTRFS_BALANCE_CTL_CANCEL 2 |
837d5b6e | 202 | |
c9e9f97b ID |
203 | /* |
204 | * this is packed, because it should be exactly the same as its disk | |
205 | * byte order counterpart (struct btrfs_disk_balance_args) | |
206 | */ | |
207 | struct btrfs_balance_args { | |
208 | __u64 profiles; | |
bc309467 DS |
209 | union { |
210 | __le64 usage; | |
211 | struct { | |
212 | __le32 usage_min; | |
213 | __le32 usage_max; | |
214 | }; | |
215 | }; | |
c9e9f97b ID |
216 | __u64 devid; |
217 | __u64 pstart; | |
218 | __u64 pend; | |
219 | __u64 vstart; | |
220 | __u64 vend; | |
221 | ||
222 | __u64 target; | |
223 | ||
224 | __u64 flags; | |
225 | ||
12907fc7 DS |
226 | /* |
227 | * BTRFS_BALANCE_ARGS_LIMIT with value 'limit' | |
228 | * BTRFS_BALANCE_ARGS_LIMIT_RANGE - the extend version can use minimum | |
229 | * and maximum | |
230 | */ | |
231 | union { | |
232 | __u64 limit; /* limit number of processed chunks */ | |
233 | struct { | |
234 | __u32 limit_min; | |
235 | __u32 limit_max; | |
236 | }; | |
237 | }; | |
dee32d0a GAP |
238 | |
239 | /* | |
240 | * Process chunks that cross stripes_min..stripes_max devices, | |
241 | * BTRFS_BALANCE_ARGS_STRIPES_RANGE | |
242 | */ | |
243 | __le32 stripes_min; | |
244 | __le32 stripes_max; | |
245 | ||
246 | __u64 unused[6]; | |
c9e9f97b ID |
247 | } __attribute__ ((__packed__)); |
248 | ||
249 | /* report balance progress to userspace */ | |
250 | struct btrfs_balance_progress { | |
251 | __u64 expected; /* estimated # of chunks that will be | |
252 | * relocated to fulfill the request */ | |
253 | __u64 considered; /* # of chunks we have considered so far */ | |
254 | __u64 completed; /* # of chunks relocated so far */ | |
255 | }; | |
256 | ||
837d5b6e ID |
257 | #define BTRFS_BALANCE_STATE_RUNNING (1ULL << 0) |
258 | #define BTRFS_BALANCE_STATE_PAUSE_REQ (1ULL << 1) | |
a7e99c69 | 259 | #define BTRFS_BALANCE_STATE_CANCEL_REQ (1ULL << 2) |
837d5b6e | 260 | |
c9e9f97b ID |
261 | struct btrfs_ioctl_balance_args { |
262 | __u64 flags; /* in/out */ | |
263 | __u64 state; /* out */ | |
264 | ||
265 | struct btrfs_balance_args data; /* in/out */ | |
266 | struct btrfs_balance_args meta; /* in/out */ | |
267 | struct btrfs_balance_args sys; /* in/out */ | |
268 | ||
269 | struct btrfs_balance_progress stat; /* out */ | |
270 | ||
271 | __u64 unused[72]; /* pad to 1k */ | |
272 | }; | |
273 | ||
ac8e9819 CM |
274 | #define BTRFS_INO_LOOKUP_PATH_MAX 4080 |
275 | struct btrfs_ioctl_ino_lookup_args { | |
276 | __u64 treeid; | |
277 | __u64 objectid; | |
278 | char name[BTRFS_INO_LOOKUP_PATH_MAX]; | |
279 | }; | |
280 | ||
281 | struct btrfs_ioctl_search_key { | |
282 | /* which root are we searching. 0 is the tree of tree roots */ | |
283 | __u64 tree_id; | |
284 | ||
285 | /* keys returned will be >= min and <= max */ | |
286 | __u64 min_objectid; | |
287 | __u64 max_objectid; | |
288 | ||
289 | /* keys returned will be >= min and <= max */ | |
290 | __u64 min_offset; | |
291 | __u64 max_offset; | |
292 | ||
293 | /* max and min transids to search for */ | |
294 | __u64 min_transid; | |
295 | __u64 max_transid; | |
296 | ||
297 | /* keys returned will be >= min and <= max */ | |
298 | __u32 min_type; | |
299 | __u32 max_type; | |
300 | ||
301 | /* | |
302 | * how many items did userland ask for, and how many are we | |
303 | * returning | |
304 | */ | |
305 | __u32 nr_items; | |
306 | ||
307 | /* align to 64 bits */ | |
308 | __u32 unused; | |
309 | ||
310 | /* some extra for later */ | |
311 | __u64 unused1; | |
312 | __u64 unused2; | |
313 | __u64 unused3; | |
314 | __u64 unused4; | |
315 | }; | |
316 | ||
317 | struct btrfs_ioctl_search_header { | |
318 | __u64 transid; | |
319 | __u64 objectid; | |
320 | __u64 offset; | |
321 | __u32 type; | |
322 | __u32 len; | |
323 | }; | |
324 | ||
325 | #define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key)) | |
326 | /* | |
327 | * the buf is an array of search headers where | |
328 | * each header is followed by the actual item | |
329 | * the type field is expanded to 32 bits for alignment | |
330 | */ | |
331 | struct btrfs_ioctl_search_args { | |
332 | struct btrfs_ioctl_search_key key; | |
333 | char buf[BTRFS_SEARCH_ARGS_BUFSIZE]; | |
334 | }; | |
335 | ||
cc68a8a5 GH |
336 | struct btrfs_ioctl_search_args_v2 { |
337 | struct btrfs_ioctl_search_key key; /* in/out - search parameters */ | |
338 | __u64 buf_size; /* in - size of buffer | |
339 | * out - on EOVERFLOW: needed size | |
340 | * to store item */ | |
341 | __u64 buf[0]; /* out - found items */ | |
342 | }; | |
343 | ||
c071fcfd CM |
344 | struct btrfs_ioctl_clone_range_args { |
345 | __s64 src_fd; | |
346 | __u64 src_offset, src_length; | |
347 | __u64 dest_offset; | |
348 | }; | |
349 | ||
1e701a32 CM |
350 | /* flags for the defrag range ioctl */ |
351 | #define BTRFS_DEFRAG_RANGE_COMPRESS 1 | |
352 | #define BTRFS_DEFRAG_RANGE_START_IO 2 | |
353 | ||
416161db MF |
354 | #define BTRFS_SAME_DATA_DIFFERS 1 |
355 | /* For extent-same ioctl */ | |
356 | struct btrfs_ioctl_same_extent_info { | |
357 | __s64 fd; /* in - destination file */ | |
358 | __u64 logical_offset; /* in - start of extent in destination */ | |
359 | __u64 bytes_deduped; /* out - total # of bytes we were able | |
360 | * to dedupe from this file */ | |
361 | /* status of this dedupe operation: | |
362 | * 0 if dedup succeeds | |
363 | * < 0 for error | |
364 | * == BTRFS_SAME_DATA_DIFFERS if data differs | |
365 | */ | |
366 | __s32 status; /* out - see above description */ | |
367 | __u32 reserved; | |
368 | }; | |
369 | ||
370 | struct btrfs_ioctl_same_args { | |
371 | __u64 logical_offset; /* in - start of extent in source */ | |
372 | __u64 length; /* in - length of extent */ | |
373 | __u16 dest_count; /* in - total elements in info array */ | |
374 | __u16 reserved1; | |
375 | __u32 reserved2; | |
376 | struct btrfs_ioctl_same_extent_info info[0]; | |
377 | }; | |
378 | ||
1406e432 | 379 | struct btrfs_ioctl_space_info { |
ce769a29 SW |
380 | __u64 flags; |
381 | __u64 total_bytes; | |
382 | __u64 used_bytes; | |
1406e432 JB |
383 | }; |
384 | ||
385 | struct btrfs_ioctl_space_args { | |
ce769a29 SW |
386 | __u64 space_slots; |
387 | __u64 total_spaces; | |
1406e432 JB |
388 | struct btrfs_ioctl_space_info spaces[0]; |
389 | }; | |
1e701a32 | 390 | |
a542ad1b JS |
391 | struct btrfs_data_container { |
392 | __u32 bytes_left; /* out -- bytes not needed to deliver output */ | |
393 | __u32 bytes_missing; /* out -- additional bytes needed for result */ | |
394 | __u32 elem_cnt; /* out */ | |
395 | __u32 elem_missed; /* out */ | |
740c3d22 | 396 | __u64 val[0]; /* out */ |
a542ad1b JS |
397 | }; |
398 | ||
d7728c96 JS |
399 | struct btrfs_ioctl_ino_path_args { |
400 | __u64 inum; /* in */ | |
d04b1deb | 401 | __u64 size; /* in */ |
d7728c96 | 402 | __u64 reserved[4]; |
740c3d22 CM |
403 | /* struct btrfs_data_container *fspath; out */ |
404 | __u64 fspath; /* out */ | |
d7728c96 JS |
405 | }; |
406 | ||
407 | struct btrfs_ioctl_logical_ino_args { | |
408 | __u64 logical; /* in */ | |
d04b1deb | 409 | __u64 size; /* in */ |
d7728c96 | 410 | __u64 reserved[4]; |
740c3d22 CM |
411 | /* struct btrfs_data_container *inodes; out */ |
412 | __u64 inodes; | |
d7728c96 JS |
413 | }; |
414 | ||
442a4f63 SB |
415 | enum btrfs_dev_stat_values { |
416 | /* disk I/O failure stats */ | |
417 | BTRFS_DEV_STAT_WRITE_ERRS, /* EIO or EREMOTEIO from lower layers */ | |
418 | BTRFS_DEV_STAT_READ_ERRS, /* EIO or EREMOTEIO from lower layers */ | |
419 | BTRFS_DEV_STAT_FLUSH_ERRS, /* EIO or EREMOTEIO from lower layers */ | |
420 | ||
421 | /* stats for indirect indications for I/O failures */ | |
422 | BTRFS_DEV_STAT_CORRUPTION_ERRS, /* checksum error, bytenr error or | |
423 | * contents is illegal: this is an | |
424 | * indication that the block was damaged | |
425 | * during read or write, or written to | |
426 | * wrong location or read from wrong | |
427 | * location */ | |
428 | BTRFS_DEV_STAT_GENERATION_ERRS, /* an indication that blocks have not | |
429 | * been written */ | |
430 | ||
431 | BTRFS_DEV_STAT_VALUES_MAX | |
432 | }; | |
433 | ||
b27f7c0c DS |
434 | /* Reset statistics after reading; needs SYS_ADMIN capability */ |
435 | #define BTRFS_DEV_STATS_RESET (1ULL << 0) | |
436 | ||
c11d2c23 SB |
437 | struct btrfs_ioctl_get_dev_stats { |
438 | __u64 devid; /* in */ | |
439 | __u64 nr_items; /* in/out */ | |
b27f7c0c | 440 | __u64 flags; /* in/out */ |
c11d2c23 SB |
441 | |
442 | /* out values: */ | |
443 | __u64 values[BTRFS_DEV_STAT_VALUES_MAX]; | |
444 | ||
445 | __u64 unused[128 - 2 - BTRFS_DEV_STAT_VALUES_MAX]; /* pad to 1k */ | |
446 | }; | |
447 | ||
5d13a37b AJ |
448 | #define BTRFS_QUOTA_CTL_ENABLE 1 |
449 | #define BTRFS_QUOTA_CTL_DISABLE 2 | |
2f232036 | 450 | #define BTRFS_QUOTA_CTL_RESCAN__NOTUSED 3 |
5d13a37b AJ |
451 | struct btrfs_ioctl_quota_ctl_args { |
452 | __u64 cmd; | |
453 | __u64 status; | |
454 | }; | |
455 | ||
2f232036 JS |
456 | struct btrfs_ioctl_quota_rescan_args { |
457 | __u64 flags; | |
458 | __u64 progress; | |
459 | __u64 reserved[6]; | |
460 | }; | |
461 | ||
5d13a37b AJ |
462 | struct btrfs_ioctl_qgroup_assign_args { |
463 | __u64 assign; | |
464 | __u64 src; | |
465 | __u64 dst; | |
466 | }; | |
467 | ||
468 | struct btrfs_ioctl_qgroup_create_args { | |
469 | __u64 create; | |
470 | __u64 qgroupid; | |
471 | }; | |
8ea05e3a AB |
472 | struct btrfs_ioctl_timespec { |
473 | __u64 sec; | |
474 | __u32 nsec; | |
475 | }; | |
476 | ||
477 | struct btrfs_ioctl_received_subvol_args { | |
478 | char uuid[BTRFS_UUID_SIZE]; /* in */ | |
479 | __u64 stransid; /* in */ | |
480 | __u64 rtransid; /* out */ | |
481 | struct btrfs_ioctl_timespec stime; /* in */ | |
482 | struct btrfs_ioctl_timespec rtime; /* out */ | |
483 | __u64 flags; /* in */ | |
484 | __u64 reserved[16]; /* in */ | |
485 | }; | |
486 | ||
cb95e7bf MF |
487 | /* |
488 | * Caller doesn't want file data in the send stream, even if the | |
489 | * search of clone sources doesn't find an extent. UPDATE_EXTENT | |
490 | * commands will be sent instead of WRITE commands. | |
491 | */ | |
c2c71324 SB |
492 | #define BTRFS_SEND_FLAG_NO_FILE_DATA 0x1 |
493 | ||
494 | /* | |
495 | * Do not add the leading stream header. Used when multiple snapshots | |
496 | * are sent back to back. | |
497 | */ | |
498 | #define BTRFS_SEND_FLAG_OMIT_STREAM_HEADER 0x2 | |
499 | ||
500 | /* | |
501 | * Omit the command at the end of the stream that indicated the end | |
502 | * of the stream. This option is used when multiple snapshots are | |
503 | * sent back to back. | |
504 | */ | |
505 | #define BTRFS_SEND_FLAG_OMIT_END_CMD 0x4 | |
506 | ||
507 | #define BTRFS_SEND_FLAG_MASK \ | |
508 | (BTRFS_SEND_FLAG_NO_FILE_DATA | \ | |
509 | BTRFS_SEND_FLAG_OMIT_STREAM_HEADER | \ | |
510 | BTRFS_SEND_FLAG_OMIT_END_CMD) | |
cb95e7bf | 511 | |
31db9f7c AB |
512 | struct btrfs_ioctl_send_args { |
513 | __s64 send_fd; /* in */ | |
514 | __u64 clone_sources_count; /* in */ | |
515 | __u64 __user *clone_sources; /* in */ | |
516 | __u64 parent_root; /* in */ | |
517 | __u64 flags; /* in */ | |
518 | __u64 reserved[4]; /* in */ | |
519 | }; | |
5d13a37b | 520 | |
183860f6 AJ |
521 | /* Error codes as returned by the kernel */ |
522 | enum btrfs_err_code { | |
eb710b15 | 523 | BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET = 1, |
183860f6 AJ |
524 | BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET, |
525 | BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET, | |
526 | BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET, | |
527 | BTRFS_ERROR_DEV_TGT_REPLACE, | |
528 | BTRFS_ERROR_DEV_MISSING_NOT_FOUND, | |
529 | BTRFS_ERROR_DEV_ONLY_WRITABLE, | |
530 | BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS | |
531 | }; | |
532 | /* An error code to error string mapping for the kernel | |
533 | * error codes | |
534 | */ | |
535 | static inline char *btrfs_err_str(enum btrfs_err_code err_code) | |
536 | { | |
537 | switch (err_code) { | |
538 | case BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET: | |
539 | return "unable to go below two devices on raid1"; | |
540 | case BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET: | |
541 | return "unable to go below four devices on raid10"; | |
542 | case BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET: | |
543 | return "unable to go below two devices on raid5"; | |
544 | case BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET: | |
545 | return "unable to go below three devices on raid6"; | |
546 | case BTRFS_ERROR_DEV_TGT_REPLACE: | |
547 | return "unable to remove the dev_replace target dev"; | |
548 | case BTRFS_ERROR_DEV_MISSING_NOT_FOUND: | |
549 | return "no missing devices found to remove"; | |
550 | case BTRFS_ERROR_DEV_ONLY_WRITABLE: | |
551 | return "unable to remove the only writeable device"; | |
552 | case BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS: | |
553 | return "add/delete/balance/replace/resize operation "\ | |
554 | "in progress"; | |
555 | default: | |
556 | return NULL; | |
557 | } | |
558 | } | |
559 | ||
c5739bba CM |
560 | #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \ |
561 | struct btrfs_ioctl_vol_args) | |
6702ed49 | 562 | #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \ |
8352d8a4 | 563 | struct btrfs_ioctl_vol_args) |
edbd8d4e CM |
564 | #define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \ |
565 | struct btrfs_ioctl_vol_args) | |
8a4b83cc CM |
566 | #define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \ |
567 | struct btrfs_ioctl_vol_args) | |
6bf13c0c SW |
568 | /* trans start and trans end are dangerous, and only for |
569 | * use by applications that know how to avoid the | |
570 | * resulting deadlocks | |
571 | */ | |
572 | #define BTRFS_IOC_TRANS_START _IO(BTRFS_IOCTL_MAGIC, 6) | |
573 | #define BTRFS_IOC_TRANS_END _IO(BTRFS_IOCTL_MAGIC, 7) | |
574 | #define BTRFS_IOC_SYNC _IO(BTRFS_IOCTL_MAGIC, 8) | |
575 | ||
f2eb0a24 | 576 | #define BTRFS_IOC_CLONE _IOW(BTRFS_IOCTL_MAGIC, 9, int) |
788f20eb CM |
577 | #define BTRFS_IOC_ADD_DEV _IOW(BTRFS_IOCTL_MAGIC, 10, \ |
578 | struct btrfs_ioctl_vol_args) | |
579 | #define BTRFS_IOC_RM_DEV _IOW(BTRFS_IOCTL_MAGIC, 11, \ | |
580 | struct btrfs_ioctl_vol_args) | |
581 | #define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \ | |
582 | struct btrfs_ioctl_vol_args) | |
c5c9cd4d SW |
583 | |
584 | #define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \ | |
585 | struct btrfs_ioctl_clone_range_args) | |
586 | ||
3de4586c CM |
587 | #define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \ |
588 | struct btrfs_ioctl_vol_args) | |
76dda93c YZ |
589 | #define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \ |
590 | struct btrfs_ioctl_vol_args) | |
1e701a32 CM |
591 | #define BTRFS_IOC_DEFRAG_RANGE _IOW(BTRFS_IOCTL_MAGIC, 16, \ |
592 | struct btrfs_ioctl_defrag_range_args) | |
ac8e9819 CM |
593 | #define BTRFS_IOC_TREE_SEARCH _IOWR(BTRFS_IOCTL_MAGIC, 17, \ |
594 | struct btrfs_ioctl_search_args) | |
cc68a8a5 GH |
595 | #define BTRFS_IOC_TREE_SEARCH_V2 _IOWR(BTRFS_IOCTL_MAGIC, 17, \ |
596 | struct btrfs_ioctl_search_args_v2) | |
ac8e9819 CM |
597 | #define BTRFS_IOC_INO_LOOKUP _IOWR(BTRFS_IOCTL_MAGIC, 18, \ |
598 | struct btrfs_ioctl_ino_lookup_args) | |
68b823ef | 599 | #define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, __u64) |
1406e432 JB |
600 | #define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, \ |
601 | struct btrfs_ioctl_space_args) | |
46204592 SW |
602 | #define BTRFS_IOC_START_SYNC _IOR(BTRFS_IOCTL_MAGIC, 24, __u64) |
603 | #define BTRFS_IOC_WAIT_SYNC _IOW(BTRFS_IOCTL_MAGIC, 22, __u64) | |
fdfb1e4f LZ |
604 | #define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \ |
605 | struct btrfs_ioctl_vol_args_v2) | |
6f72c7e2 AJ |
606 | #define BTRFS_IOC_SUBVOL_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 24, \ |
607 | struct btrfs_ioctl_vol_args_v2) | |
d3a94048 | 608 | #define BTRFS_IOC_SUBVOL_GETFLAGS _IOR(BTRFS_IOCTL_MAGIC, 25, __u64) |
0caa102d | 609 | #define BTRFS_IOC_SUBVOL_SETFLAGS _IOW(BTRFS_IOCTL_MAGIC, 26, __u64) |
475f6387 JS |
610 | #define BTRFS_IOC_SCRUB _IOWR(BTRFS_IOCTL_MAGIC, 27, \ |
611 | struct btrfs_ioctl_scrub_args) | |
612 | #define BTRFS_IOC_SCRUB_CANCEL _IO(BTRFS_IOCTL_MAGIC, 28) | |
613 | #define BTRFS_IOC_SCRUB_PROGRESS _IOWR(BTRFS_IOCTL_MAGIC, 29, \ | |
614 | struct btrfs_ioctl_scrub_args) | |
615 | #define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \ | |
616 | struct btrfs_ioctl_dev_info_args) | |
617 | #define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \ | |
618 | struct btrfs_ioctl_fs_info_args) | |
c9e9f97b ID |
619 | #define BTRFS_IOC_BALANCE_V2 _IOWR(BTRFS_IOCTL_MAGIC, 32, \ |
620 | struct btrfs_ioctl_balance_args) | |
837d5b6e | 621 | #define BTRFS_IOC_BALANCE_CTL _IOW(BTRFS_IOCTL_MAGIC, 33, int) |
19a39dce ID |
622 | #define BTRFS_IOC_BALANCE_PROGRESS _IOR(BTRFS_IOCTL_MAGIC, 34, \ |
623 | struct btrfs_ioctl_balance_args) | |
d7728c96 JS |
624 | #define BTRFS_IOC_INO_PATHS _IOWR(BTRFS_IOCTL_MAGIC, 35, \ |
625 | struct btrfs_ioctl_ino_path_args) | |
626 | #define BTRFS_IOC_LOGICAL_INO _IOWR(BTRFS_IOCTL_MAGIC, 36, \ | |
627 | struct btrfs_ioctl_ino_path_args) | |
8ea05e3a AB |
628 | #define BTRFS_IOC_SET_RECEIVED_SUBVOL _IOWR(BTRFS_IOCTL_MAGIC, 37, \ |
629 | struct btrfs_ioctl_received_subvol_args) | |
31db9f7c | 630 | #define BTRFS_IOC_SEND _IOW(BTRFS_IOCTL_MAGIC, 38, struct btrfs_ioctl_send_args) |
02db0844 JB |
631 | #define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, \ |
632 | struct btrfs_ioctl_vol_args) | |
5d13a37b AJ |
633 | #define BTRFS_IOC_QUOTA_CTL _IOWR(BTRFS_IOCTL_MAGIC, 40, \ |
634 | struct btrfs_ioctl_quota_ctl_args) | |
635 | #define BTRFS_IOC_QGROUP_ASSIGN _IOW(BTRFS_IOCTL_MAGIC, 41, \ | |
636 | struct btrfs_ioctl_qgroup_assign_args) | |
637 | #define BTRFS_IOC_QGROUP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 42, \ | |
638 | struct btrfs_ioctl_qgroup_create_args) | |
639 | #define BTRFS_IOC_QGROUP_LIMIT _IOR(BTRFS_IOCTL_MAGIC, 43, \ | |
640 | struct btrfs_ioctl_qgroup_limit_args) | |
2f232036 JS |
641 | #define BTRFS_IOC_QUOTA_RESCAN _IOW(BTRFS_IOCTL_MAGIC, 44, \ |
642 | struct btrfs_ioctl_quota_rescan_args) | |
643 | #define BTRFS_IOC_QUOTA_RESCAN_STATUS _IOR(BTRFS_IOCTL_MAGIC, 45, \ | |
644 | struct btrfs_ioctl_quota_rescan_args) | |
57254b6e | 645 | #define BTRFS_IOC_QUOTA_RESCAN_WAIT _IO(BTRFS_IOCTL_MAGIC, 46) |
867ab667 | 646 | #define BTRFS_IOC_GET_FSLABEL _IOR(BTRFS_IOCTL_MAGIC, 49, \ |
647 | char[BTRFS_LABEL_SIZE]) | |
a8bfd4ab | 648 | #define BTRFS_IOC_SET_FSLABEL _IOW(BTRFS_IOCTL_MAGIC, 50, \ |
649 | char[BTRFS_LABEL_SIZE]) | |
c11d2c23 SB |
650 | #define BTRFS_IOC_GET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 52, \ |
651 | struct btrfs_ioctl_get_dev_stats) | |
e93c89c1 SB |
652 | #define BTRFS_IOC_DEV_REPLACE _IOWR(BTRFS_IOCTL_MAGIC, 53, \ |
653 | struct btrfs_ioctl_dev_replace_args) | |
416161db MF |
654 | #define BTRFS_IOC_FILE_EXTENT_SAME _IOWR(BTRFS_IOCTL_MAGIC, 54, \ |
655 | struct btrfs_ioctl_same_args) | |
2eaa055f JM |
656 | #define BTRFS_IOC_GET_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \ |
657 | struct btrfs_ioctl_feature_flags) | |
658 | #define BTRFS_IOC_SET_FEATURES _IOW(BTRFS_IOCTL_MAGIC, 57, \ | |
659 | struct btrfs_ioctl_feature_flags[2]) | |
660 | #define BTRFS_IOC_GET_SUPPORTED_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \ | |
661 | struct btrfs_ioctl_feature_flags[3]) | |
416161db | 662 | |
55e301fd | 663 | #endif /* _UAPI_LINUX_BTRFS_H */ |