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
27 /* this should be 4k */
28 #define BTRFS_PATH_NAME_MAX 4087
29 struct btrfs_ioctl_vol_args {
31 char name[BTRFS_PATH_NAME_MAX + 1];
34 #define BTRFS_DEVICE_PATH_NAME_MAX 1024
36 #define BTRFS_SUBVOL_CREATE_ASYNC (1ULL << 0)
37 #define BTRFS_SUBVOL_RDONLY (1ULL << 1)
38 #define BTRFS_SUBVOL_QGROUP_INHERIT (1ULL << 2)
39 #define BTRFS_FSID_SIZE 16
40 #define BTRFS_UUID_SIZE 16
42 #define BTRFS_QGROUP_INHERIT_SET_LIMITS (1ULL << 0)
44 struct btrfs_qgroup_limit {
52 struct btrfs_qgroup_inherit {
56 __u64 num_excl_copies;
57 struct btrfs_qgroup_limit lim;
61 struct btrfs_ioctl_qgroup_limit_args {
63 struct btrfs_qgroup_limit lim;
66 #define BTRFS_SUBVOL_NAME_MAX 4039
67 struct btrfs_ioctl_vol_args_v2 {
74 struct btrfs_qgroup_inherit __user *qgroup_inherit;
78 char name[BTRFS_SUBVOL_NAME_MAX + 1];
82 * structure to report errors and progress to userspace, either as a
83 * result of a finished scrub, a canceled scrub or a progress inquiry
85 struct btrfs_scrub_progress {
86 __u64 data_extents_scrubbed; /* # of data extents scrubbed */
87 __u64 tree_extents_scrubbed; /* # of tree extents scrubbed */
88 __u64 data_bytes_scrubbed; /* # of data bytes scrubbed */
89 __u64 tree_bytes_scrubbed; /* # of tree bytes scrubbed */
90 __u64 read_errors; /* # of read errors encountered (EIO) */
91 __u64 csum_errors; /* # of failed csum checks */
92 __u64 verify_errors; /* # of occurences, where the metadata
93 * of a tree block did not match the
94 * expected values, like generation or
96 __u64 no_csum; /* # of 4k data block for which no csum
97 * is present, probably the result of
98 * data written with nodatasum */
99 __u64 csum_discards; /* # of csum for which no data was found
100 * in the extent tree. */
101 __u64 super_errors; /* # of bad super blocks encountered */
102 __u64 malloc_errors; /* # of internal kmalloc errors. These
103 * will likely cause an incomplete
105 __u64 uncorrectable_errors; /* # of errors where either no intact
106 * copy was found or the writeback
108 __u64 corrected_errors; /* # of errors corrected */
109 __u64 last_physical; /* last physical address scrubbed. In
110 * case a scrub was aborted, this can
111 * be used to restart the scrub */
112 __u64 unverified_errors; /* # of occurences where a read for a
113 * full (64k) bio failed, but the re-
114 * check succeeded for each 4k piece.
115 * Intermittent error. */
118 #define BTRFS_SCRUB_READONLY 1
119 struct btrfs_ioctl_scrub_args {
120 __u64 devid; /* in */
121 __u64 start; /* in */
123 __u64 flags; /* in */
124 struct btrfs_scrub_progress progress; /* out */
126 __u64 unused[(1024-32-sizeof(struct btrfs_scrub_progress))/8];
129 #define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_ALWAYS 0
130 #define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_AVOID 1
131 struct btrfs_ioctl_dev_replace_start_params {
132 __u64 srcdevid; /* in, if 0, use srcdev_name instead */
133 __u64 cont_reading_from_srcdev_mode; /* in, see #define
135 __u8 srcdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1]; /* in */
136 __u8 tgtdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1]; /* in */
139 #define BTRFS_IOCTL_DEV_REPLACE_STATE_NEVER_STARTED 0
140 #define BTRFS_IOCTL_DEV_REPLACE_STATE_STARTED 1
141 #define BTRFS_IOCTL_DEV_REPLACE_STATE_FINISHED 2
142 #define BTRFS_IOCTL_DEV_REPLACE_STATE_CANCELED 3
143 #define BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED 4
144 struct btrfs_ioctl_dev_replace_status_params {
145 __u64 replace_state; /* out, see #define above */
146 __u64 progress_1000; /* out, 0 <= x <= 1000 */
147 __u64 time_started; /* out, seconds since 1-Jan-1970 */
148 __u64 time_stopped; /* out, seconds since 1-Jan-1970 */
149 __u64 num_write_errors; /* out */
150 __u64 num_uncorrectable_read_errors; /* out */
153 #define BTRFS_IOCTL_DEV_REPLACE_CMD_START 0
154 #define BTRFS_IOCTL_DEV_REPLACE_CMD_STATUS 1
155 #define BTRFS_IOCTL_DEV_REPLACE_CMD_CANCEL 2
156 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR 0
157 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_NOT_STARTED 1
158 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_ALREADY_STARTED 2
159 struct btrfs_ioctl_dev_replace_args {
161 __u64 result; /* out */
164 struct btrfs_ioctl_dev_replace_start_params start;
165 struct btrfs_ioctl_dev_replace_status_params status;
171 struct btrfs_ioctl_dev_info_args {
172 __u64 devid; /* in/out */
173 __u8 uuid[BTRFS_UUID_SIZE]; /* in/out */
174 __u64 bytes_used; /* out */
175 __u64 total_bytes; /* out */
176 __u64 unused[379]; /* pad to 4k */
177 __u8 path[BTRFS_DEVICE_PATH_NAME_MAX]; /* out */
180 struct btrfs_ioctl_fs_info_args {
181 __u64 max_id; /* out */
182 __u64 num_devices; /* out */
183 __u8 fsid[BTRFS_FSID_SIZE]; /* out */
184 __u32 nodesize; /* out */
185 __u32 sectorsize; /* out */
186 __u32 clone_alignment; /* out */
188 __u64 reserved[122]; /* pad to 1k */
191 struct btrfs_ioctl_feature_flags {
193 __u64 compat_ro_flags;
194 __u64 incompat_flags;
197 /* balance control ioctl modes */
198 #define BTRFS_BALANCE_CTL_PAUSE 1
199 #define BTRFS_BALANCE_CTL_CANCEL 2
202 * this is packed, because it should be exactly the same as its disk
203 * byte order counterpart (struct btrfs_disk_balance_args)
205 struct btrfs_balance_args {
218 __u64 limit; /* limit number of processed chunks */
220 } __attribute__ ((__packed__));
222 /* report balance progress to userspace */
223 struct btrfs_balance_progress {
224 __u64 expected; /* estimated # of chunks that will be
225 * relocated to fulfill the request */
226 __u64 considered; /* # of chunks we have considered so far */
227 __u64 completed; /* # of chunks relocated so far */
230 #define BTRFS_BALANCE_STATE_RUNNING (1ULL << 0)
231 #define BTRFS_BALANCE_STATE_PAUSE_REQ (1ULL << 1)
232 #define BTRFS_BALANCE_STATE_CANCEL_REQ (1ULL << 2)
234 struct btrfs_ioctl_balance_args {
235 __u64 flags; /* in/out */
236 __u64 state; /* out */
238 struct btrfs_balance_args data; /* in/out */
239 struct btrfs_balance_args meta; /* in/out */
240 struct btrfs_balance_args sys; /* in/out */
242 struct btrfs_balance_progress stat; /* out */
244 __u64 unused[72]; /* pad to 1k */
247 #define BTRFS_INO_LOOKUP_PATH_MAX 4080
248 struct btrfs_ioctl_ino_lookup_args {
251 char name[BTRFS_INO_LOOKUP_PATH_MAX];
254 struct btrfs_ioctl_search_key {
255 /* which root are we searching. 0 is the tree of tree roots */
258 /* keys returned will be >= min and <= max */
262 /* keys returned will be >= min and <= max */
266 /* max and min transids to search for */
270 /* keys returned will be >= min and <= max */
275 * how many items did userland ask for, and how many are we
280 /* align to 64 bits */
283 /* some extra for later */
290 struct btrfs_ioctl_search_header {
298 #define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key))
300 * the buf is an array of search headers where
301 * each header is followed by the actual item
302 * the type field is expanded to 32 bits for alignment
304 struct btrfs_ioctl_search_args {
305 struct btrfs_ioctl_search_key key;
306 char buf[BTRFS_SEARCH_ARGS_BUFSIZE];
309 struct btrfs_ioctl_search_args_v2 {
310 struct btrfs_ioctl_search_key key; /* in/out - search parameters */
311 __u64 buf_size; /* in - size of buffer
312 * out - on EOVERFLOW: needed size
314 __u64 buf[0]; /* out - found items */
317 struct btrfs_ioctl_clone_range_args {
319 __u64 src_offset, src_length;
323 /* flags for the defrag range ioctl */
324 #define BTRFS_DEFRAG_RANGE_COMPRESS 1
325 #define BTRFS_DEFRAG_RANGE_START_IO 2
327 #define BTRFS_SAME_DATA_DIFFERS 1
328 /* For extent-same ioctl */
329 struct btrfs_ioctl_same_extent_info {
330 __s64 fd; /* in - destination file */
331 __u64 logical_offset; /* in - start of extent in destination */
332 __u64 bytes_deduped; /* out - total # of bytes we were able
333 * to dedupe from this file */
334 /* status of this dedupe operation:
335 * 0 if dedup succeeds
337 * == BTRFS_SAME_DATA_DIFFERS if data differs
339 __s32 status; /* out - see above description */
343 struct btrfs_ioctl_same_args {
344 __u64 logical_offset; /* in - start of extent in source */
345 __u64 length; /* in - length of extent */
346 __u16 dest_count; /* in - total elements in info array */
349 struct btrfs_ioctl_same_extent_info info[0];
352 struct btrfs_ioctl_space_info {
358 struct btrfs_ioctl_space_args {
361 struct btrfs_ioctl_space_info spaces[0];
364 struct btrfs_data_container {
365 __u32 bytes_left; /* out -- bytes not needed to deliver output */
366 __u32 bytes_missing; /* out -- additional bytes needed for result */
367 __u32 elem_cnt; /* out */
368 __u32 elem_missed; /* out */
369 __u64 val[0]; /* out */
372 struct btrfs_ioctl_ino_path_args {
376 /* struct btrfs_data_container *fspath; out */
377 __u64 fspath; /* out */
380 struct btrfs_ioctl_logical_ino_args {
381 __u64 logical; /* in */
384 /* struct btrfs_data_container *inodes; out */
388 enum btrfs_dev_stat_values {
389 /* disk I/O failure stats */
390 BTRFS_DEV_STAT_WRITE_ERRS, /* EIO or EREMOTEIO from lower layers */
391 BTRFS_DEV_STAT_READ_ERRS, /* EIO or EREMOTEIO from lower layers */
392 BTRFS_DEV_STAT_FLUSH_ERRS, /* EIO or EREMOTEIO from lower layers */
394 /* stats for indirect indications for I/O failures */
395 BTRFS_DEV_STAT_CORRUPTION_ERRS, /* checksum error, bytenr error or
396 * contents is illegal: this is an
397 * indication that the block was damaged
398 * during read or write, or written to
399 * wrong location or read from wrong
401 BTRFS_DEV_STAT_GENERATION_ERRS, /* an indication that blocks have not
404 BTRFS_DEV_STAT_VALUES_MAX
407 /* Reset statistics after reading; needs SYS_ADMIN capability */
408 #define BTRFS_DEV_STATS_RESET (1ULL << 0)
410 struct btrfs_ioctl_get_dev_stats {
411 __u64 devid; /* in */
412 __u64 nr_items; /* in/out */
413 __u64 flags; /* in/out */
416 __u64 values[BTRFS_DEV_STAT_VALUES_MAX];
418 __u64 unused[128 - 2 - BTRFS_DEV_STAT_VALUES_MAX]; /* pad to 1k */
421 #define BTRFS_QUOTA_CTL_ENABLE 1
422 #define BTRFS_QUOTA_CTL_DISABLE 2
423 #define BTRFS_QUOTA_CTL_RESCAN__NOTUSED 3
424 struct btrfs_ioctl_quota_ctl_args {
429 struct btrfs_ioctl_quota_rescan_args {
435 struct btrfs_ioctl_qgroup_assign_args {
441 struct btrfs_ioctl_qgroup_create_args {
445 struct btrfs_ioctl_timespec {
450 struct btrfs_ioctl_received_subvol_args {
451 char uuid[BTRFS_UUID_SIZE]; /* in */
452 __u64 stransid; /* in */
453 __u64 rtransid; /* out */
454 struct btrfs_ioctl_timespec stime; /* in */
455 struct btrfs_ioctl_timespec rtime; /* out */
456 __u64 flags; /* in */
457 __u64 reserved[16]; /* in */
461 * Caller doesn't want file data in the send stream, even if the
462 * search of clone sources doesn't find an extent. UPDATE_EXTENT
463 * commands will be sent instead of WRITE commands.
465 #define BTRFS_SEND_FLAG_NO_FILE_DATA 0x1
468 * Do not add the leading stream header. Used when multiple snapshots
469 * are sent back to back.
471 #define BTRFS_SEND_FLAG_OMIT_STREAM_HEADER 0x2
474 * Omit the command at the end of the stream that indicated the end
475 * of the stream. This option is used when multiple snapshots are
478 #define BTRFS_SEND_FLAG_OMIT_END_CMD 0x4
480 #define BTRFS_SEND_FLAG_MASK \
481 (BTRFS_SEND_FLAG_NO_FILE_DATA | \
482 BTRFS_SEND_FLAG_OMIT_STREAM_HEADER | \
483 BTRFS_SEND_FLAG_OMIT_END_CMD)
485 struct btrfs_ioctl_send_args {
486 __s64 send_fd; /* in */
487 __u64 clone_sources_count; /* in */
488 __u64 __user *clone_sources; /* in */
489 __u64 parent_root; /* in */
490 __u64 flags; /* in */
491 __u64 reserved[4]; /* in */
494 /* Error codes as returned by the kernel */
495 enum btrfs_err_code {
497 BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET,
498 BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET,
499 BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET,
500 BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET,
501 BTRFS_ERROR_DEV_TGT_REPLACE,
502 BTRFS_ERROR_DEV_MISSING_NOT_FOUND,
503 BTRFS_ERROR_DEV_ONLY_WRITABLE,
504 BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS
506 /* An error code to error string mapping for the kernel
509 static inline char *btrfs_err_str(enum btrfs_err_code err_code)
512 case BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET:
513 return "unable to go below two devices on raid1";
514 case BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET:
515 return "unable to go below four devices on raid10";
516 case BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET:
517 return "unable to go below two devices on raid5";
518 case BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET:
519 return "unable to go below three devices on raid6";
520 case BTRFS_ERROR_DEV_TGT_REPLACE:
521 return "unable to remove the dev_replace target dev";
522 case BTRFS_ERROR_DEV_MISSING_NOT_FOUND:
523 return "no missing devices found to remove";
524 case BTRFS_ERROR_DEV_ONLY_WRITABLE:
525 return "unable to remove the only writeable device";
526 case BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS:
527 return "add/delete/balance/replace/resize operation "\
534 #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
535 struct btrfs_ioctl_vol_args)
536 #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
537 struct btrfs_ioctl_vol_args)
538 #define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
539 struct btrfs_ioctl_vol_args)
540 #define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
541 struct btrfs_ioctl_vol_args)
542 /* trans start and trans end are dangerous, and only for
543 * use by applications that know how to avoid the
544 * resulting deadlocks
546 #define BTRFS_IOC_TRANS_START _IO(BTRFS_IOCTL_MAGIC, 6)
547 #define BTRFS_IOC_TRANS_END _IO(BTRFS_IOCTL_MAGIC, 7)
548 #define BTRFS_IOC_SYNC _IO(BTRFS_IOCTL_MAGIC, 8)
550 #define BTRFS_IOC_CLONE _IOW(BTRFS_IOCTL_MAGIC, 9, int)
551 #define BTRFS_IOC_ADD_DEV _IOW(BTRFS_IOCTL_MAGIC, 10, \
552 struct btrfs_ioctl_vol_args)
553 #define BTRFS_IOC_RM_DEV _IOW(BTRFS_IOCTL_MAGIC, 11, \
554 struct btrfs_ioctl_vol_args)
555 #define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \
556 struct btrfs_ioctl_vol_args)
558 #define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
559 struct btrfs_ioctl_clone_range_args)
561 #define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
562 struct btrfs_ioctl_vol_args)
563 #define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \
564 struct btrfs_ioctl_vol_args)
565 #define BTRFS_IOC_DEFRAG_RANGE _IOW(BTRFS_IOCTL_MAGIC, 16, \
566 struct btrfs_ioctl_defrag_range_args)
567 #define BTRFS_IOC_TREE_SEARCH _IOWR(BTRFS_IOCTL_MAGIC, 17, \
568 struct btrfs_ioctl_search_args)
569 #define BTRFS_IOC_TREE_SEARCH_V2 _IOWR(BTRFS_IOCTL_MAGIC, 17, \
570 struct btrfs_ioctl_search_args_v2)
571 #define BTRFS_IOC_INO_LOOKUP _IOWR(BTRFS_IOCTL_MAGIC, 18, \
572 struct btrfs_ioctl_ino_lookup_args)
573 #define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, __u64)
574 #define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, \
575 struct btrfs_ioctl_space_args)
576 #define BTRFS_IOC_START_SYNC _IOR(BTRFS_IOCTL_MAGIC, 24, __u64)
577 #define BTRFS_IOC_WAIT_SYNC _IOW(BTRFS_IOCTL_MAGIC, 22, __u64)
578 #define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \
579 struct btrfs_ioctl_vol_args_v2)
580 #define BTRFS_IOC_SUBVOL_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 24, \
581 struct btrfs_ioctl_vol_args_v2)
582 #define BTRFS_IOC_SUBVOL_GETFLAGS _IOR(BTRFS_IOCTL_MAGIC, 25, __u64)
583 #define BTRFS_IOC_SUBVOL_SETFLAGS _IOW(BTRFS_IOCTL_MAGIC, 26, __u64)
584 #define BTRFS_IOC_SCRUB _IOWR(BTRFS_IOCTL_MAGIC, 27, \
585 struct btrfs_ioctl_scrub_args)
586 #define BTRFS_IOC_SCRUB_CANCEL _IO(BTRFS_IOCTL_MAGIC, 28)
587 #define BTRFS_IOC_SCRUB_PROGRESS _IOWR(BTRFS_IOCTL_MAGIC, 29, \
588 struct btrfs_ioctl_scrub_args)
589 #define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
590 struct btrfs_ioctl_dev_info_args)
591 #define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
592 struct btrfs_ioctl_fs_info_args)
593 #define BTRFS_IOC_BALANCE_V2 _IOWR(BTRFS_IOCTL_MAGIC, 32, \
594 struct btrfs_ioctl_balance_args)
595 #define BTRFS_IOC_BALANCE_CTL _IOW(BTRFS_IOCTL_MAGIC, 33, int)
596 #define BTRFS_IOC_BALANCE_PROGRESS _IOR(BTRFS_IOCTL_MAGIC, 34, \
597 struct btrfs_ioctl_balance_args)
598 #define BTRFS_IOC_INO_PATHS _IOWR(BTRFS_IOCTL_MAGIC, 35, \
599 struct btrfs_ioctl_ino_path_args)
600 #define BTRFS_IOC_LOGICAL_INO _IOWR(BTRFS_IOCTL_MAGIC, 36, \
601 struct btrfs_ioctl_ino_path_args)
602 #define BTRFS_IOC_SET_RECEIVED_SUBVOL _IOWR(BTRFS_IOCTL_MAGIC, 37, \
603 struct btrfs_ioctl_received_subvol_args)
604 #define BTRFS_IOC_SEND _IOW(BTRFS_IOCTL_MAGIC, 38, struct btrfs_ioctl_send_args)
605 #define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, \
606 struct btrfs_ioctl_vol_args)
607 #define BTRFS_IOC_QUOTA_CTL _IOWR(BTRFS_IOCTL_MAGIC, 40, \
608 struct btrfs_ioctl_quota_ctl_args)
609 #define BTRFS_IOC_QGROUP_ASSIGN _IOW(BTRFS_IOCTL_MAGIC, 41, \
610 struct btrfs_ioctl_qgroup_assign_args)
611 #define BTRFS_IOC_QGROUP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 42, \
612 struct btrfs_ioctl_qgroup_create_args)
613 #define BTRFS_IOC_QGROUP_LIMIT _IOR(BTRFS_IOCTL_MAGIC, 43, \
614 struct btrfs_ioctl_qgroup_limit_args)
615 #define BTRFS_IOC_QUOTA_RESCAN _IOW(BTRFS_IOCTL_MAGIC, 44, \
616 struct btrfs_ioctl_quota_rescan_args)
617 #define BTRFS_IOC_QUOTA_RESCAN_STATUS _IOR(BTRFS_IOCTL_MAGIC, 45, \
618 struct btrfs_ioctl_quota_rescan_args)
619 #define BTRFS_IOC_QUOTA_RESCAN_WAIT _IO(BTRFS_IOCTL_MAGIC, 46)
620 #define BTRFS_IOC_GET_FSLABEL _IOR(BTRFS_IOCTL_MAGIC, 49, \
621 char[BTRFS_LABEL_SIZE])
622 #define BTRFS_IOC_SET_FSLABEL _IOW(BTRFS_IOCTL_MAGIC, 50, \
623 char[BTRFS_LABEL_SIZE])
624 #define BTRFS_IOC_GET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 52, \
625 struct btrfs_ioctl_get_dev_stats)
626 #define BTRFS_IOC_DEV_REPLACE _IOWR(BTRFS_IOCTL_MAGIC, 53, \
627 struct btrfs_ioctl_dev_replace_args)
628 #define BTRFS_IOC_FILE_EXTENT_SAME _IOWR(BTRFS_IOCTL_MAGIC, 54, \
629 struct btrfs_ioctl_same_args)
630 #define BTRFS_IOC_GET_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
631 struct btrfs_ioctl_feature_flags)
632 #define BTRFS_IOC_SET_FEATURES _IOW(BTRFS_IOCTL_MAGIC, 57, \
633 struct btrfs_ioctl_feature_flags[2])
634 #define BTRFS_IOC_GET_SUPPORTED_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
635 struct btrfs_ioctl_feature_flags[3])
637 #endif /* _UAPI_LINUX_BTRFS_H */