2 * Copyright (C) 2007 Oracle. All rights reserved.
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.
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.
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.
19 #ifndef _UAPI_LINUX_BTRFS_H
20 #define _UAPI_LINUX_BTRFS_H
21 #include <linux/types.h>
22 #include <linux/ioctl.h>
24 #define BTRFS_IOCTL_MAGIC 0x94
25 #define BTRFS_VOL_NAME_MAX 255
26 #define BTRFS_LABEL_SIZE 256
28 /* this should be 4k */
29 #define BTRFS_PATH_NAME_MAX 4087
30 struct btrfs_ioctl_vol_args
{
32 char name
[BTRFS_PATH_NAME_MAX
+ 1];
35 #define BTRFS_DEVICE_PATH_NAME_MAX 1024
37 #define BTRFS_DEVICE_SPEC_BY_ID (1ULL << 3)
39 #define BTRFS_VOL_ARG_V2_FLAGS_SUPPORTED \
40 (BTRFS_SUBVOL_CREATE_ASYNC | \
41 BTRFS_SUBVOL_RDONLY | \
42 BTRFS_SUBVOL_QGROUP_INHERIT | \
43 BTRFS_DEVICE_SPEC_BY_ID)
45 #define BTRFS_FSID_SIZE 16
46 #define BTRFS_UUID_SIZE 16
47 #define BTRFS_UUID_UNPARSED_SIZE 37
50 * flags definition for qgroup limits
53 * struct btrfs_qgroup_limit.flags
54 * struct btrfs_qgroup_limit_item.flags
56 #define BTRFS_QGROUP_LIMIT_MAX_RFER (1ULL << 0)
57 #define BTRFS_QGROUP_LIMIT_MAX_EXCL (1ULL << 1)
58 #define BTRFS_QGROUP_LIMIT_RSV_RFER (1ULL << 2)
59 #define BTRFS_QGROUP_LIMIT_RSV_EXCL (1ULL << 3)
60 #define BTRFS_QGROUP_LIMIT_RFER_CMPR (1ULL << 4)
61 #define BTRFS_QGROUP_LIMIT_EXCL_CMPR (1ULL << 5)
63 struct btrfs_qgroup_limit
{
72 * flags definition for qgroup inheritance
75 * struct btrfs_qgroup_inherit.flags
77 #define BTRFS_QGROUP_INHERIT_SET_LIMITS (1ULL << 0)
79 struct btrfs_qgroup_inherit
{
83 __u64 num_excl_copies
;
84 struct btrfs_qgroup_limit lim
;
88 struct btrfs_ioctl_qgroup_limit_args
{
90 struct btrfs_qgroup_limit lim
;
94 * flags for subvolumes
97 * struct btrfs_ioctl_vol_args_v2.flags
99 * BTRFS_SUBVOL_RDONLY is also provided/consumed by the following ioctls:
100 * - BTRFS_IOC_SUBVOL_GETFLAGS
101 * - BTRFS_IOC_SUBVOL_SETFLAGS
103 #define BTRFS_SUBVOL_CREATE_ASYNC (1ULL << 0)
104 #define BTRFS_SUBVOL_RDONLY (1ULL << 1)
105 #define BTRFS_SUBVOL_QGROUP_INHERIT (1ULL << 2)
107 #define BTRFS_SUBVOL_NAME_MAX 4039
108 struct btrfs_ioctl_vol_args_v2
{
115 struct btrfs_qgroup_inherit __user
*qgroup_inherit
;
120 char name
[BTRFS_SUBVOL_NAME_MAX
+ 1];
126 * structure to report errors and progress to userspace, either as a
127 * result of a finished scrub, a canceled scrub or a progress inquiry
129 struct btrfs_scrub_progress
{
130 __u64 data_extents_scrubbed
; /* # of data extents scrubbed */
131 __u64 tree_extents_scrubbed
; /* # of tree extents scrubbed */
132 __u64 data_bytes_scrubbed
; /* # of data bytes scrubbed */
133 __u64 tree_bytes_scrubbed
; /* # of tree bytes scrubbed */
134 __u64 read_errors
; /* # of read errors encountered (EIO) */
135 __u64 csum_errors
; /* # of failed csum checks */
136 __u64 verify_errors
; /* # of occurences, where the metadata
137 * of a tree block did not match the
138 * expected values, like generation or
140 __u64 no_csum
; /* # of 4k data block for which no csum
141 * is present, probably the result of
142 * data written with nodatasum */
143 __u64 csum_discards
; /* # of csum for which no data was found
144 * in the extent tree. */
145 __u64 super_errors
; /* # of bad super blocks encountered */
146 __u64 malloc_errors
; /* # of internal kmalloc errors. These
147 * will likely cause an incomplete
149 __u64 uncorrectable_errors
; /* # of errors where either no intact
150 * copy was found or the writeback
152 __u64 corrected_errors
; /* # of errors corrected */
153 __u64 last_physical
; /* last physical address scrubbed. In
154 * case a scrub was aborted, this can
155 * be used to restart the scrub */
156 __u64 unverified_errors
; /* # of occurences where a read for a
157 * full (64k) bio failed, but the re-
158 * check succeeded for each 4k piece.
159 * Intermittent error. */
162 #define BTRFS_SCRUB_READONLY 1
163 struct btrfs_ioctl_scrub_args
{
164 __u64 devid
; /* in */
165 __u64 start
; /* in */
167 __u64 flags
; /* in */
168 struct btrfs_scrub_progress progress
; /* out */
170 __u64 unused
[(1024-32-sizeof(struct btrfs_scrub_progress
))/8];
173 #define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_ALWAYS 0
174 #define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_AVOID 1
175 struct btrfs_ioctl_dev_replace_start_params
{
176 __u64 srcdevid
; /* in, if 0, use srcdev_name instead */
177 __u64 cont_reading_from_srcdev_mode
; /* in, see #define
179 __u8 srcdev_name
[BTRFS_DEVICE_PATH_NAME_MAX
+ 1]; /* in */
180 __u8 tgtdev_name
[BTRFS_DEVICE_PATH_NAME_MAX
+ 1]; /* in */
183 #define BTRFS_IOCTL_DEV_REPLACE_STATE_NEVER_STARTED 0
184 #define BTRFS_IOCTL_DEV_REPLACE_STATE_STARTED 1
185 #define BTRFS_IOCTL_DEV_REPLACE_STATE_FINISHED 2
186 #define BTRFS_IOCTL_DEV_REPLACE_STATE_CANCELED 3
187 #define BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED 4
188 struct btrfs_ioctl_dev_replace_status_params
{
189 __u64 replace_state
; /* out, see #define above */
190 __u64 progress_1000
; /* out, 0 <= x <= 1000 */
191 __u64 time_started
; /* out, seconds since 1-Jan-1970 */
192 __u64 time_stopped
; /* out, seconds since 1-Jan-1970 */
193 __u64 num_write_errors
; /* out */
194 __u64 num_uncorrectable_read_errors
; /* out */
197 #define BTRFS_IOCTL_DEV_REPLACE_CMD_START 0
198 #define BTRFS_IOCTL_DEV_REPLACE_CMD_STATUS 1
199 #define BTRFS_IOCTL_DEV_REPLACE_CMD_CANCEL 2
200 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR 0
201 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_NOT_STARTED 1
202 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_ALREADY_STARTED 2
203 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_SCRUB_INPROGRESS 3
204 struct btrfs_ioctl_dev_replace_args
{
206 __u64 result
; /* out */
209 struct btrfs_ioctl_dev_replace_start_params start
;
210 struct btrfs_ioctl_dev_replace_status_params status
;
216 struct btrfs_ioctl_dev_info_args
{
217 __u64 devid
; /* in/out */
218 __u8 uuid
[BTRFS_UUID_SIZE
]; /* in/out */
219 __u64 bytes_used
; /* out */
220 __u64 total_bytes
; /* out */
221 __u64 unused
[379]; /* pad to 4k */
222 __u8 path
[BTRFS_DEVICE_PATH_NAME_MAX
]; /* out */
225 struct btrfs_ioctl_fs_info_args
{
226 __u64 max_id
; /* out */
227 __u64 num_devices
; /* out */
228 __u8 fsid
[BTRFS_FSID_SIZE
]; /* out */
229 __u32 nodesize
; /* out */
230 __u32 sectorsize
; /* out */
231 __u32 clone_alignment
; /* out */
233 __u64 reserved
[122]; /* pad to 1k */
240 * struct btrfs_ioctl_feature_flags
242 #define BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE (1ULL << 0)
244 * Older kernels (< 4.9) on big-endian systems produced broken free space tree
245 * bitmaps, and btrfs-progs also used to corrupt the free space tree (versions
246 * < 4.7.3). If this bit is clear, then the free space tree cannot be trusted.
247 * btrfs-progs can also intentionally clear this bit to ask the kernel to
248 * rebuild the free space tree, however this might not work on older kernels
249 * that do not know about this bit. If not sure, clear the cache manually on
250 * first mount when booting older kernel versions.
252 #define BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE_VALID (1ULL << 1)
254 #define BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF (1ULL << 0)
255 #define BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL (1ULL << 1)
256 #define BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS (1ULL << 2)
257 #define BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO (1ULL << 3)
258 #define BTRFS_FEATURE_INCOMPAT_COMPRESS_ZSTD (1ULL << 4)
261 * older kernels tried to do bigger metadata blocks, but the
262 * code was pretty buggy. Lets not let them try anymore.
264 #define BTRFS_FEATURE_INCOMPAT_BIG_METADATA (1ULL << 5)
266 #define BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF (1ULL << 6)
267 #define BTRFS_FEATURE_INCOMPAT_RAID56 (1ULL << 7)
268 #define BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA (1ULL << 8)
269 #define BTRFS_FEATURE_INCOMPAT_NO_HOLES (1ULL << 9)
271 struct btrfs_ioctl_feature_flags
{
273 __u64 compat_ro_flags
;
274 __u64 incompat_flags
;
277 /* balance control ioctl modes */
278 #define BTRFS_BALANCE_CTL_PAUSE 1
279 #define BTRFS_BALANCE_CTL_CANCEL 2
282 * this is packed, because it should be exactly the same as its disk
283 * byte order counterpart (struct btrfs_disk_balance_args)
285 struct btrfs_balance_args
{
305 * BTRFS_BALANCE_ARGS_LIMIT with value 'limit'
306 * BTRFS_BALANCE_ARGS_LIMIT_RANGE - the extend version can use minimum
310 __u64 limit
; /* limit number of processed chunks */
318 * Process chunks that cross stripes_min..stripes_max devices,
319 * BTRFS_BALANCE_ARGS_STRIPES_RANGE
325 } __attribute__ ((__packed__
));
327 /* report balance progress to userspace */
328 struct btrfs_balance_progress
{
329 __u64 expected
; /* estimated # of chunks that will be
330 * relocated to fulfill the request */
331 __u64 considered
; /* # of chunks we have considered so far */
332 __u64 completed
; /* # of chunks relocated so far */
336 * flags definition for balance
338 * Restriper's general type filter
341 * btrfs_ioctl_balance_args.flags
342 * btrfs_balance_control.flags (internal)
344 #define BTRFS_BALANCE_DATA (1ULL << 0)
345 #define BTRFS_BALANCE_SYSTEM (1ULL << 1)
346 #define BTRFS_BALANCE_METADATA (1ULL << 2)
348 #define BTRFS_BALANCE_TYPE_MASK (BTRFS_BALANCE_DATA | \
349 BTRFS_BALANCE_SYSTEM | \
350 BTRFS_BALANCE_METADATA)
352 #define BTRFS_BALANCE_FORCE (1ULL << 3)
353 #define BTRFS_BALANCE_RESUME (1ULL << 4)
356 * flags definitions for per-type balance args
361 * struct btrfs_balance_args
363 #define BTRFS_BALANCE_ARGS_PROFILES (1ULL << 0)
364 #define BTRFS_BALANCE_ARGS_USAGE (1ULL << 1)
365 #define BTRFS_BALANCE_ARGS_DEVID (1ULL << 2)
366 #define BTRFS_BALANCE_ARGS_DRANGE (1ULL << 3)
367 #define BTRFS_BALANCE_ARGS_VRANGE (1ULL << 4)
368 #define BTRFS_BALANCE_ARGS_LIMIT (1ULL << 5)
369 #define BTRFS_BALANCE_ARGS_LIMIT_RANGE (1ULL << 6)
370 #define BTRFS_BALANCE_ARGS_STRIPES_RANGE (1ULL << 7)
371 #define BTRFS_BALANCE_ARGS_USAGE_RANGE (1ULL << 10)
373 #define BTRFS_BALANCE_ARGS_MASK \
374 (BTRFS_BALANCE_ARGS_PROFILES | \
375 BTRFS_BALANCE_ARGS_USAGE | \
376 BTRFS_BALANCE_ARGS_DEVID | \
377 BTRFS_BALANCE_ARGS_DRANGE | \
378 BTRFS_BALANCE_ARGS_VRANGE | \
379 BTRFS_BALANCE_ARGS_LIMIT | \
380 BTRFS_BALANCE_ARGS_LIMIT_RANGE | \
381 BTRFS_BALANCE_ARGS_STRIPES_RANGE | \
382 BTRFS_BALANCE_ARGS_USAGE_RANGE)
385 * Profile changing flags. When SOFT is set we won't relocate chunk if
386 * it already has the target profile (even though it may be
389 #define BTRFS_BALANCE_ARGS_CONVERT (1ULL << 8)
390 #define BTRFS_BALANCE_ARGS_SOFT (1ULL << 9)
394 * flags definition for balance state
397 * struct btrfs_ioctl_balance_args.state
399 #define BTRFS_BALANCE_STATE_RUNNING (1ULL << 0)
400 #define BTRFS_BALANCE_STATE_PAUSE_REQ (1ULL << 1)
401 #define BTRFS_BALANCE_STATE_CANCEL_REQ (1ULL << 2)
403 struct btrfs_ioctl_balance_args
{
404 __u64 flags
; /* in/out */
405 __u64 state
; /* out */
407 struct btrfs_balance_args data
; /* in/out */
408 struct btrfs_balance_args meta
; /* in/out */
409 struct btrfs_balance_args sys
; /* in/out */
411 struct btrfs_balance_progress stat
; /* out */
413 __u64 unused
[72]; /* pad to 1k */
416 #define BTRFS_INO_LOOKUP_PATH_MAX 4080
417 struct btrfs_ioctl_ino_lookup_args
{
420 char name
[BTRFS_INO_LOOKUP_PATH_MAX
];
423 /* Search criteria for the btrfs SEARCH ioctl family. */
424 struct btrfs_ioctl_search_key
{
426 * The tree we're searching in. 1 is the tree of tree roots, 2 is the
427 * extent tree, etc...
429 * A special tree_id value of 0 will cause a search in the subvolume
430 * tree that the inode which is passed to the ioctl is part of.
432 __u64 tree_id
; /* in */
435 * When doing a tree search, we're actually taking a slice from a
436 * linear search space of 136-bit keys.
438 * A full 136-bit tree key is composed as:
439 * (objectid << 72) + (type << 64) + offset
441 * The individual min and max values for objectid, type and offset
442 * define the min_key and max_key values for the search range. All
443 * metadata items with a key in the interval [min_key, max_key] will be
446 * Additionally, we can filter the items returned on transaction id of
447 * the metadata block they're stored in by specifying a transid range.
448 * Be aware that this transaction id only denotes when the metadata
449 * page that currently contains the item got written the last time as
450 * result of a COW operation. The number does not have any meaning
451 * related to the transaction in which an individual item that is being
452 * returned was created or changed.
454 __u64 min_objectid
; /* in */
455 __u64 max_objectid
; /* in */
456 __u64 min_offset
; /* in */
457 __u64 max_offset
; /* in */
458 __u64 min_transid
; /* in */
459 __u64 max_transid
; /* in */
460 __u32 min_type
; /* in */
461 __u32 max_type
; /* in */
464 * input: The maximum amount of results desired.
465 * output: The actual amount of items returned, restricted by any of:
466 * - reaching the upper bound of the search range
467 * - reaching the input nr_items amount of items
468 * - completely filling the supplied memory buffer
470 __u32 nr_items
; /* in/out */
472 /* align to 64 bits */
475 /* some extra for later */
482 struct btrfs_ioctl_search_header
{
490 #define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key))
492 * the buf is an array of search headers where
493 * each header is followed by the actual item
494 * the type field is expanded to 32 bits for alignment
496 struct btrfs_ioctl_search_args
{
497 struct btrfs_ioctl_search_key key
;
498 char buf
[BTRFS_SEARCH_ARGS_BUFSIZE
];
501 struct btrfs_ioctl_search_args_v2
{
502 struct btrfs_ioctl_search_key key
; /* in/out - search parameters */
503 __u64 buf_size
; /* in - size of buffer
504 * out - on EOVERFLOW: needed size
506 __u64 buf
[0]; /* out - found items */
509 struct btrfs_ioctl_clone_range_args
{
511 __u64 src_offset
, src_length
;
516 * flags definition for the defrag range ioctl
519 * struct btrfs_ioctl_defrag_range_args.flags
521 #define BTRFS_DEFRAG_RANGE_COMPRESS 1
522 #define BTRFS_DEFRAG_RANGE_START_IO 2
523 struct btrfs_ioctl_defrag_range_args
{
524 /* start of the defrag operation */
527 /* number of bytes to defrag, use (u64)-1 to say all */
531 * flags for the operation, which can include turning
532 * on compression for this one defrag
537 * any extent bigger than this will be considered
538 * already defragged. Use 0 to take the kernel default
539 * Use 1 to say every single extent must be rewritten
544 * which compression method to use if turning on compression
545 * for this defrag operation. If unspecified, zlib will
550 /* spare for later */
555 #define BTRFS_SAME_DATA_DIFFERS 1
556 /* For extent-same ioctl */
557 struct btrfs_ioctl_same_extent_info
{
558 __s64 fd
; /* in - destination file */
559 __u64 logical_offset
; /* in - start of extent in destination */
560 __u64 bytes_deduped
; /* out - total # of bytes we were able
561 * to dedupe from this file */
562 /* status of this dedupe operation:
563 * 0 if dedup succeeds
565 * == BTRFS_SAME_DATA_DIFFERS if data differs
567 __s32 status
; /* out - see above description */
571 struct btrfs_ioctl_same_args
{
572 __u64 logical_offset
; /* in - start of extent in source */
573 __u64 length
; /* in - length of extent */
574 __u16 dest_count
; /* in - total elements in info array */
577 struct btrfs_ioctl_same_extent_info info
[0];
580 struct btrfs_ioctl_space_info
{
586 struct btrfs_ioctl_space_args
{
589 struct btrfs_ioctl_space_info spaces
[0];
592 struct btrfs_data_container
{
593 __u32 bytes_left
; /* out -- bytes not needed to deliver output */
594 __u32 bytes_missing
; /* out -- additional bytes needed for result */
595 __u32 elem_cnt
; /* out */
596 __u32 elem_missed
; /* out */
597 __u64 val
[0]; /* out */
600 struct btrfs_ioctl_ino_path_args
{
604 /* struct btrfs_data_container *fspath; out */
605 __u64 fspath
; /* out */
608 struct btrfs_ioctl_logical_ino_args
{
609 __u64 logical
; /* in */
612 /* struct btrfs_data_container *inodes; out */
616 enum btrfs_dev_stat_values
{
617 /* disk I/O failure stats */
618 BTRFS_DEV_STAT_WRITE_ERRS
, /* EIO or EREMOTEIO from lower layers */
619 BTRFS_DEV_STAT_READ_ERRS
, /* EIO or EREMOTEIO from lower layers */
620 BTRFS_DEV_STAT_FLUSH_ERRS
, /* EIO or EREMOTEIO from lower layers */
622 /* stats for indirect indications for I/O failures */
623 BTRFS_DEV_STAT_CORRUPTION_ERRS
, /* checksum error, bytenr error or
624 * contents is illegal: this is an
625 * indication that the block was damaged
626 * during read or write, or written to
627 * wrong location or read from wrong
629 BTRFS_DEV_STAT_GENERATION_ERRS
, /* an indication that blocks have not
632 BTRFS_DEV_STAT_VALUES_MAX
635 /* Reset statistics after reading; needs SYS_ADMIN capability */
636 #define BTRFS_DEV_STATS_RESET (1ULL << 0)
638 struct btrfs_ioctl_get_dev_stats
{
639 __u64 devid
; /* in */
640 __u64 nr_items
; /* in/out */
641 __u64 flags
; /* in/out */
644 __u64 values
[BTRFS_DEV_STAT_VALUES_MAX
];
646 __u64 unused
[128 - 2 - BTRFS_DEV_STAT_VALUES_MAX
]; /* pad to 1k */
649 #define BTRFS_QUOTA_CTL_ENABLE 1
650 #define BTRFS_QUOTA_CTL_DISABLE 2
651 #define BTRFS_QUOTA_CTL_RESCAN__NOTUSED 3
652 struct btrfs_ioctl_quota_ctl_args
{
657 struct btrfs_ioctl_quota_rescan_args
{
663 struct btrfs_ioctl_qgroup_assign_args
{
669 struct btrfs_ioctl_qgroup_create_args
{
673 struct btrfs_ioctl_timespec
{
678 struct btrfs_ioctl_received_subvol_args
{
679 char uuid
[BTRFS_UUID_SIZE
]; /* in */
680 __u64 stransid
; /* in */
681 __u64 rtransid
; /* out */
682 struct btrfs_ioctl_timespec stime
; /* in */
683 struct btrfs_ioctl_timespec rtime
; /* out */
684 __u64 flags
; /* in */
685 __u64 reserved
[16]; /* in */
689 * Caller doesn't want file data in the send stream, even if the
690 * search of clone sources doesn't find an extent. UPDATE_EXTENT
691 * commands will be sent instead of WRITE commands.
693 #define BTRFS_SEND_FLAG_NO_FILE_DATA 0x1
696 * Do not add the leading stream header. Used when multiple snapshots
697 * are sent back to back.
699 #define BTRFS_SEND_FLAG_OMIT_STREAM_HEADER 0x2
702 * Omit the command at the end of the stream that indicated the end
703 * of the stream. This option is used when multiple snapshots are
706 #define BTRFS_SEND_FLAG_OMIT_END_CMD 0x4
708 #define BTRFS_SEND_FLAG_MASK \
709 (BTRFS_SEND_FLAG_NO_FILE_DATA | \
710 BTRFS_SEND_FLAG_OMIT_STREAM_HEADER | \
711 BTRFS_SEND_FLAG_OMIT_END_CMD)
713 struct btrfs_ioctl_send_args
{
714 __s64 send_fd
; /* in */
715 __u64 clone_sources_count
; /* in */
716 __u64 __user
*clone_sources
; /* in */
717 __u64 parent_root
; /* in */
718 __u64 flags
; /* in */
719 __u64 reserved
[4]; /* in */
722 /* Error codes as returned by the kernel */
723 enum btrfs_err_code
{
724 BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET
= 1,
725 BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET
,
726 BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET
,
727 BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET
,
728 BTRFS_ERROR_DEV_TGT_REPLACE
,
729 BTRFS_ERROR_DEV_MISSING_NOT_FOUND
,
730 BTRFS_ERROR_DEV_ONLY_WRITABLE
,
731 BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS
734 #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
735 struct btrfs_ioctl_vol_args)
736 #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
737 struct btrfs_ioctl_vol_args)
738 #define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
739 struct btrfs_ioctl_vol_args)
740 #define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
741 struct btrfs_ioctl_vol_args)
742 /* trans start and trans end are dangerous, and only for
743 * use by applications that know how to avoid the
744 * resulting deadlocks
746 #define BTRFS_IOC_TRANS_START _IO(BTRFS_IOCTL_MAGIC, 6)
747 #define BTRFS_IOC_TRANS_END _IO(BTRFS_IOCTL_MAGIC, 7)
748 #define BTRFS_IOC_SYNC _IO(BTRFS_IOCTL_MAGIC, 8)
750 #define BTRFS_IOC_CLONE _IOW(BTRFS_IOCTL_MAGIC, 9, int)
751 #define BTRFS_IOC_ADD_DEV _IOW(BTRFS_IOCTL_MAGIC, 10, \
752 struct btrfs_ioctl_vol_args)
753 #define BTRFS_IOC_RM_DEV _IOW(BTRFS_IOCTL_MAGIC, 11, \
754 struct btrfs_ioctl_vol_args)
755 #define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \
756 struct btrfs_ioctl_vol_args)
758 #define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
759 struct btrfs_ioctl_clone_range_args)
761 #define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
762 struct btrfs_ioctl_vol_args)
763 #define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \
764 struct btrfs_ioctl_vol_args)
765 #define BTRFS_IOC_DEFRAG_RANGE _IOW(BTRFS_IOCTL_MAGIC, 16, \
766 struct btrfs_ioctl_defrag_range_args)
767 #define BTRFS_IOC_TREE_SEARCH _IOWR(BTRFS_IOCTL_MAGIC, 17, \
768 struct btrfs_ioctl_search_args)
769 #define BTRFS_IOC_TREE_SEARCH_V2 _IOWR(BTRFS_IOCTL_MAGIC, 17, \
770 struct btrfs_ioctl_search_args_v2)
771 #define BTRFS_IOC_INO_LOOKUP _IOWR(BTRFS_IOCTL_MAGIC, 18, \
772 struct btrfs_ioctl_ino_lookup_args)
773 #define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, __u64)
774 #define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, \
775 struct btrfs_ioctl_space_args)
776 #define BTRFS_IOC_START_SYNC _IOR(BTRFS_IOCTL_MAGIC, 24, __u64)
777 #define BTRFS_IOC_WAIT_SYNC _IOW(BTRFS_IOCTL_MAGIC, 22, __u64)
778 #define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \
779 struct btrfs_ioctl_vol_args_v2)
780 #define BTRFS_IOC_SUBVOL_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 24, \
781 struct btrfs_ioctl_vol_args_v2)
782 #define BTRFS_IOC_SUBVOL_GETFLAGS _IOR(BTRFS_IOCTL_MAGIC, 25, __u64)
783 #define BTRFS_IOC_SUBVOL_SETFLAGS _IOW(BTRFS_IOCTL_MAGIC, 26, __u64)
784 #define BTRFS_IOC_SCRUB _IOWR(BTRFS_IOCTL_MAGIC, 27, \
785 struct btrfs_ioctl_scrub_args)
786 #define BTRFS_IOC_SCRUB_CANCEL _IO(BTRFS_IOCTL_MAGIC, 28)
787 #define BTRFS_IOC_SCRUB_PROGRESS _IOWR(BTRFS_IOCTL_MAGIC, 29, \
788 struct btrfs_ioctl_scrub_args)
789 #define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
790 struct btrfs_ioctl_dev_info_args)
791 #define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
792 struct btrfs_ioctl_fs_info_args)
793 #define BTRFS_IOC_BALANCE_V2 _IOWR(BTRFS_IOCTL_MAGIC, 32, \
794 struct btrfs_ioctl_balance_args)
795 #define BTRFS_IOC_BALANCE_CTL _IOW(BTRFS_IOCTL_MAGIC, 33, int)
796 #define BTRFS_IOC_BALANCE_PROGRESS _IOR(BTRFS_IOCTL_MAGIC, 34, \
797 struct btrfs_ioctl_balance_args)
798 #define BTRFS_IOC_INO_PATHS _IOWR(BTRFS_IOCTL_MAGIC, 35, \
799 struct btrfs_ioctl_ino_path_args)
800 #define BTRFS_IOC_LOGICAL_INO _IOWR(BTRFS_IOCTL_MAGIC, 36, \
801 struct btrfs_ioctl_logical_ino_args)
802 #define BTRFS_IOC_SET_RECEIVED_SUBVOL _IOWR(BTRFS_IOCTL_MAGIC, 37, \
803 struct btrfs_ioctl_received_subvol_args)
804 #define BTRFS_IOC_SEND _IOW(BTRFS_IOCTL_MAGIC, 38, struct btrfs_ioctl_send_args)
805 #define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, \
806 struct btrfs_ioctl_vol_args)
807 #define BTRFS_IOC_QUOTA_CTL _IOWR(BTRFS_IOCTL_MAGIC, 40, \
808 struct btrfs_ioctl_quota_ctl_args)
809 #define BTRFS_IOC_QGROUP_ASSIGN _IOW(BTRFS_IOCTL_MAGIC, 41, \
810 struct btrfs_ioctl_qgroup_assign_args)
811 #define BTRFS_IOC_QGROUP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 42, \
812 struct btrfs_ioctl_qgroup_create_args)
813 #define BTRFS_IOC_QGROUP_LIMIT _IOR(BTRFS_IOCTL_MAGIC, 43, \
814 struct btrfs_ioctl_qgroup_limit_args)
815 #define BTRFS_IOC_QUOTA_RESCAN _IOW(BTRFS_IOCTL_MAGIC, 44, \
816 struct btrfs_ioctl_quota_rescan_args)
817 #define BTRFS_IOC_QUOTA_RESCAN_STATUS _IOR(BTRFS_IOCTL_MAGIC, 45, \
818 struct btrfs_ioctl_quota_rescan_args)
819 #define BTRFS_IOC_QUOTA_RESCAN_WAIT _IO(BTRFS_IOCTL_MAGIC, 46)
820 #define BTRFS_IOC_GET_FSLABEL _IOR(BTRFS_IOCTL_MAGIC, 49, \
821 char[BTRFS_LABEL_SIZE])
822 #define BTRFS_IOC_SET_FSLABEL _IOW(BTRFS_IOCTL_MAGIC, 50, \
823 char[BTRFS_LABEL_SIZE])
824 #define BTRFS_IOC_GET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 52, \
825 struct btrfs_ioctl_get_dev_stats)
826 #define BTRFS_IOC_DEV_REPLACE _IOWR(BTRFS_IOCTL_MAGIC, 53, \
827 struct btrfs_ioctl_dev_replace_args)
828 #define BTRFS_IOC_FILE_EXTENT_SAME _IOWR(BTRFS_IOCTL_MAGIC, 54, \
829 struct btrfs_ioctl_same_args)
830 #define BTRFS_IOC_GET_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
831 struct btrfs_ioctl_feature_flags)
832 #define BTRFS_IOC_SET_FEATURES _IOW(BTRFS_IOCTL_MAGIC, 57, \
833 struct btrfs_ioctl_feature_flags[2])
834 #define BTRFS_IOC_GET_SUPPORTED_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
835 struct btrfs_ioctl_feature_flags[3])
836 #define BTRFS_IOC_RM_DEV_V2 _IOW(BTRFS_IOCTL_MAGIC, 58, \
837 struct btrfs_ioctl_vol_args_v2)
839 #endif /* _UAPI_LINUX_BTRFS_H */