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
41 #define BTRFS_UUID_UNPARSED_SIZE 37
43 #define BTRFS_QGROUP_INHERIT_SET_LIMITS (1ULL << 0)
45 struct btrfs_qgroup_limit {
53 struct btrfs_qgroup_inherit {
57 __u64 num_excl_copies;
58 struct btrfs_qgroup_limit lim;
62 struct btrfs_ioctl_qgroup_limit_args {
64 struct btrfs_qgroup_limit lim;
67 #define BTRFS_SUBVOL_NAME_MAX 4039
68 struct btrfs_ioctl_vol_args_v2 {
75 struct btrfs_qgroup_inherit __user *qgroup_inherit;
79 char name[BTRFS_SUBVOL_NAME_MAX + 1];
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
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
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
106 __u64 uncorrectable_errors; /* # of errors where either no intact
107 * copy was found or the writeback
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. */
119 #define BTRFS_SCRUB_READONLY 1
120 struct btrfs_ioctl_scrub_args {
121 __u64 devid; /* in */
122 __u64 start; /* in */
124 __u64 flags; /* in */
125 struct btrfs_scrub_progress progress; /* out */
127 __u64 unused[(1024-32-sizeof(struct btrfs_scrub_progress))/8];
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 */
134 __u64 cont_reading_from_srcdev_mode; /* in, see #define
136 __u8 srcdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1]; /* in */
137 __u8 tgtdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1]; /* in */
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 */
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
160 struct btrfs_ioctl_dev_replace_args {
162 __u64 result; /* out */
165 struct btrfs_ioctl_dev_replace_start_params start;
166 struct btrfs_ioctl_dev_replace_status_params status;
172 struct btrfs_ioctl_dev_info_args {
173 __u64 devid; /* in/out */
174 __u8 uuid[BTRFS_UUID_SIZE]; /* in/out */
175 __u64 bytes_used; /* out */
176 __u64 total_bytes; /* out */
177 __u64 unused[379]; /* pad to 4k */
178 __u8 path[BTRFS_DEVICE_PATH_NAME_MAX]; /* out */
181 struct btrfs_ioctl_fs_info_args {
182 __u64 max_id; /* out */
183 __u64 num_devices; /* out */
184 __u8 fsid[BTRFS_FSID_SIZE]; /* out */
185 __u32 nodesize; /* out */
186 __u32 sectorsize; /* out */
187 __u32 clone_alignment; /* out */
189 __u64 reserved[122]; /* pad to 1k */
192 struct btrfs_ioctl_feature_flags {
194 __u64 compat_ro_flags;
195 __u64 incompat_flags;
198 /* balance control ioctl modes */
199 #define BTRFS_BALANCE_CTL_PAUSE 1
200 #define BTRFS_BALANCE_CTL_CANCEL 2
203 * this is packed, because it should be exactly the same as its disk
204 * byte order counterpart (struct btrfs_disk_balance_args)
206 struct btrfs_balance_args {
219 __u64 limit; /* limit number of processed chunks */
221 } __attribute__ ((__packed__));
223 /* report balance progress to userspace */
224 struct btrfs_balance_progress {
225 __u64 expected; /* estimated # of chunks that will be
226 * relocated to fulfill the request */
227 __u64 considered; /* # of chunks we have considered so far */
228 __u64 completed; /* # of chunks relocated so far */
231 #define BTRFS_BALANCE_STATE_RUNNING (1ULL << 0)
232 #define BTRFS_BALANCE_STATE_PAUSE_REQ (1ULL << 1)
233 #define BTRFS_BALANCE_STATE_CANCEL_REQ (1ULL << 2)
235 struct btrfs_ioctl_balance_args {
236 __u64 flags; /* in/out */
237 __u64 state; /* out */
239 struct btrfs_balance_args data; /* in/out */
240 struct btrfs_balance_args meta; /* in/out */
241 struct btrfs_balance_args sys; /* in/out */
243 struct btrfs_balance_progress stat; /* out */
245 __u64 unused[72]; /* pad to 1k */
248 #define BTRFS_INO_LOOKUP_PATH_MAX 4080
249 struct btrfs_ioctl_ino_lookup_args {
252 char name[BTRFS_INO_LOOKUP_PATH_MAX];
255 struct btrfs_ioctl_search_key {
256 /* which root are we searching. 0 is the tree of tree roots */
259 /* keys returned will be >= min and <= max */
263 /* keys returned will be >= min and <= max */
267 /* max and min transids to search for */
271 /* keys returned will be >= min and <= max */
276 * how many items did userland ask for, and how many are we
281 /* align to 64 bits */
284 /* some extra for later */
291 struct btrfs_ioctl_search_header {
299 #define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key))
301 * the buf is an array of search headers where
302 * each header is followed by the actual item
303 * the type field is expanded to 32 bits for alignment
305 struct btrfs_ioctl_search_args {
306 struct btrfs_ioctl_search_key key;
307 char buf[BTRFS_SEARCH_ARGS_BUFSIZE];
310 struct btrfs_ioctl_search_args_v2 {
311 struct btrfs_ioctl_search_key key; /* in/out - search parameters */
312 __u64 buf_size; /* in - size of buffer
313 * out - on EOVERFLOW: needed size
315 __u64 buf[0]; /* out - found items */
318 struct btrfs_ioctl_clone_range_args {
320 __u64 src_offset, src_length;
324 /* flags for the defrag range ioctl */
325 #define BTRFS_DEFRAG_RANGE_COMPRESS 1
326 #define BTRFS_DEFRAG_RANGE_START_IO 2
328 #define BTRFS_SAME_DATA_DIFFERS 1
329 /* For extent-same ioctl */
330 struct btrfs_ioctl_same_extent_info {
331 __s64 fd; /* in - destination file */
332 __u64 logical_offset; /* in - start of extent in destination */
333 __u64 bytes_deduped; /* out - total # of bytes we were able
334 * to dedupe from this file */
335 /* status of this dedupe operation:
336 * 0 if dedup succeeds
338 * == BTRFS_SAME_DATA_DIFFERS if data differs
340 __s32 status; /* out - see above description */
344 struct btrfs_ioctl_same_args {
345 __u64 logical_offset; /* in - start of extent in source */
346 __u64 length; /* in - length of extent */
347 __u16 dest_count; /* in - total elements in info array */
350 struct btrfs_ioctl_same_extent_info info[0];
353 struct btrfs_ioctl_space_info {
359 struct btrfs_ioctl_space_args {
362 struct btrfs_ioctl_space_info spaces[0];
365 struct btrfs_data_container {
366 __u32 bytes_left; /* out -- bytes not needed to deliver output */
367 __u32 bytes_missing; /* out -- additional bytes needed for result */
368 __u32 elem_cnt; /* out */
369 __u32 elem_missed; /* out */
370 __u64 val[0]; /* out */
373 struct btrfs_ioctl_ino_path_args {
377 /* struct btrfs_data_container *fspath; out */
378 __u64 fspath; /* out */
381 struct btrfs_ioctl_logical_ino_args {
382 __u64 logical; /* in */
385 /* struct btrfs_data_container *inodes; out */
389 enum btrfs_dev_stat_values {
390 /* disk I/O failure stats */
391 BTRFS_DEV_STAT_WRITE_ERRS, /* EIO or EREMOTEIO from lower layers */
392 BTRFS_DEV_STAT_READ_ERRS, /* EIO or EREMOTEIO from lower layers */
393 BTRFS_DEV_STAT_FLUSH_ERRS, /* EIO or EREMOTEIO from lower layers */
395 /* stats for indirect indications for I/O failures */
396 BTRFS_DEV_STAT_CORRUPTION_ERRS, /* checksum error, bytenr error or
397 * contents is illegal: this is an
398 * indication that the block was damaged
399 * during read or write, or written to
400 * wrong location or read from wrong
402 BTRFS_DEV_STAT_GENERATION_ERRS, /* an indication that blocks have not
405 BTRFS_DEV_STAT_VALUES_MAX
408 /* Reset statistics after reading; needs SYS_ADMIN capability */
409 #define BTRFS_DEV_STATS_RESET (1ULL << 0)
411 struct btrfs_ioctl_get_dev_stats {
412 __u64 devid; /* in */
413 __u64 nr_items; /* in/out */
414 __u64 flags; /* in/out */
417 __u64 values[BTRFS_DEV_STAT_VALUES_MAX];
419 __u64 unused[128 - 2 - BTRFS_DEV_STAT_VALUES_MAX]; /* pad to 1k */
422 #define BTRFS_QUOTA_CTL_ENABLE 1
423 #define BTRFS_QUOTA_CTL_DISABLE 2
424 #define BTRFS_QUOTA_CTL_RESCAN__NOTUSED 3
425 struct btrfs_ioctl_quota_ctl_args {
430 struct btrfs_ioctl_quota_rescan_args {
436 struct btrfs_ioctl_qgroup_assign_args {
442 struct btrfs_ioctl_qgroup_create_args {
446 struct btrfs_ioctl_timespec {
451 struct btrfs_ioctl_received_subvol_args {
452 char uuid[BTRFS_UUID_SIZE]; /* in */
453 __u64 stransid; /* in */
454 __u64 rtransid; /* out */
455 struct btrfs_ioctl_timespec stime; /* in */
456 struct btrfs_ioctl_timespec rtime; /* out */
457 __u64 flags; /* in */
458 __u64 reserved[16]; /* in */
462 * Caller doesn't want file data in the send stream, even if the
463 * search of clone sources doesn't find an extent. UPDATE_EXTENT
464 * commands will be sent instead of WRITE commands.
466 #define BTRFS_SEND_FLAG_NO_FILE_DATA 0x1
469 * Do not add the leading stream header. Used when multiple snapshots
470 * are sent back to back.
472 #define BTRFS_SEND_FLAG_OMIT_STREAM_HEADER 0x2
475 * Omit the command at the end of the stream that indicated the end
476 * of the stream. This option is used when multiple snapshots are
479 #define BTRFS_SEND_FLAG_OMIT_END_CMD 0x4
481 #define BTRFS_SEND_FLAG_MASK \
482 (BTRFS_SEND_FLAG_NO_FILE_DATA | \
483 BTRFS_SEND_FLAG_OMIT_STREAM_HEADER | \
484 BTRFS_SEND_FLAG_OMIT_END_CMD)
486 struct btrfs_ioctl_send_args {
487 __s64 send_fd; /* in */
488 __u64 clone_sources_count; /* in */
489 __u64 __user *clone_sources; /* in */
490 __u64 parent_root; /* in */
491 __u64 flags; /* in */
492 __u64 reserved[4]; /* in */
495 /* Error codes as returned by the kernel */
496 enum btrfs_err_code {
498 BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET,
499 BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET,
500 BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET,
501 BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET,
502 BTRFS_ERROR_DEV_TGT_REPLACE,
503 BTRFS_ERROR_DEV_MISSING_NOT_FOUND,
504 BTRFS_ERROR_DEV_ONLY_WRITABLE,
505 BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS
507 /* An error code to error string mapping for the kernel
510 static inline char *btrfs_err_str(enum btrfs_err_code err_code)
513 case BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET:
514 return "unable to go below two devices on raid1";
515 case BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET:
516 return "unable to go below four devices on raid10";
517 case BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET:
518 return "unable to go below two devices on raid5";
519 case BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET:
520 return "unable to go below three devices on raid6";
521 case BTRFS_ERROR_DEV_TGT_REPLACE:
522 return "unable to remove the dev_replace target dev";
523 case BTRFS_ERROR_DEV_MISSING_NOT_FOUND:
524 return "no missing devices found to remove";
525 case BTRFS_ERROR_DEV_ONLY_WRITABLE:
526 return "unable to remove the only writeable device";
527 case BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS:
528 return "add/delete/balance/replace/resize operation "\
535 #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
536 struct btrfs_ioctl_vol_args)
537 #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
538 struct btrfs_ioctl_vol_args)
539 #define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
540 struct btrfs_ioctl_vol_args)
541 #define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
542 struct btrfs_ioctl_vol_args)
543 /* trans start and trans end are dangerous, and only for
544 * use by applications that know how to avoid the
545 * resulting deadlocks
547 #define BTRFS_IOC_TRANS_START _IO(BTRFS_IOCTL_MAGIC, 6)
548 #define BTRFS_IOC_TRANS_END _IO(BTRFS_IOCTL_MAGIC, 7)
549 #define BTRFS_IOC_SYNC _IO(BTRFS_IOCTL_MAGIC, 8)
551 #define BTRFS_IOC_CLONE _IOW(BTRFS_IOCTL_MAGIC, 9, int)
552 #define BTRFS_IOC_ADD_DEV _IOW(BTRFS_IOCTL_MAGIC, 10, \
553 struct btrfs_ioctl_vol_args)
554 #define BTRFS_IOC_RM_DEV _IOW(BTRFS_IOCTL_MAGIC, 11, \
555 struct btrfs_ioctl_vol_args)
556 #define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \
557 struct btrfs_ioctl_vol_args)
559 #define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
560 struct btrfs_ioctl_clone_range_args)
562 #define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
563 struct btrfs_ioctl_vol_args)
564 #define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \
565 struct btrfs_ioctl_vol_args)
566 #define BTRFS_IOC_DEFRAG_RANGE _IOW(BTRFS_IOCTL_MAGIC, 16, \
567 struct btrfs_ioctl_defrag_range_args)
568 #define BTRFS_IOC_TREE_SEARCH _IOWR(BTRFS_IOCTL_MAGIC, 17, \
569 struct btrfs_ioctl_search_args)
570 #define BTRFS_IOC_TREE_SEARCH_V2 _IOWR(BTRFS_IOCTL_MAGIC, 17, \
571 struct btrfs_ioctl_search_args_v2)
572 #define BTRFS_IOC_INO_LOOKUP _IOWR(BTRFS_IOCTL_MAGIC, 18, \
573 struct btrfs_ioctl_ino_lookup_args)
574 #define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, __u64)
575 #define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, \
576 struct btrfs_ioctl_space_args)
577 #define BTRFS_IOC_START_SYNC _IOR(BTRFS_IOCTL_MAGIC, 24, __u64)
578 #define BTRFS_IOC_WAIT_SYNC _IOW(BTRFS_IOCTL_MAGIC, 22, __u64)
579 #define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \
580 struct btrfs_ioctl_vol_args_v2)
581 #define BTRFS_IOC_SUBVOL_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 24, \
582 struct btrfs_ioctl_vol_args_v2)
583 #define BTRFS_IOC_SUBVOL_GETFLAGS _IOR(BTRFS_IOCTL_MAGIC, 25, __u64)
584 #define BTRFS_IOC_SUBVOL_SETFLAGS _IOW(BTRFS_IOCTL_MAGIC, 26, __u64)
585 #define BTRFS_IOC_SCRUB _IOWR(BTRFS_IOCTL_MAGIC, 27, \
586 struct btrfs_ioctl_scrub_args)
587 #define BTRFS_IOC_SCRUB_CANCEL _IO(BTRFS_IOCTL_MAGIC, 28)
588 #define BTRFS_IOC_SCRUB_PROGRESS _IOWR(BTRFS_IOCTL_MAGIC, 29, \
589 struct btrfs_ioctl_scrub_args)
590 #define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
591 struct btrfs_ioctl_dev_info_args)
592 #define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
593 struct btrfs_ioctl_fs_info_args)
594 #define BTRFS_IOC_BALANCE_V2 _IOWR(BTRFS_IOCTL_MAGIC, 32, \
595 struct btrfs_ioctl_balance_args)
596 #define BTRFS_IOC_BALANCE_CTL _IOW(BTRFS_IOCTL_MAGIC, 33, int)
597 #define BTRFS_IOC_BALANCE_PROGRESS _IOR(BTRFS_IOCTL_MAGIC, 34, \
598 struct btrfs_ioctl_balance_args)
599 #define BTRFS_IOC_INO_PATHS _IOWR(BTRFS_IOCTL_MAGIC, 35, \
600 struct btrfs_ioctl_ino_path_args)
601 #define BTRFS_IOC_LOGICAL_INO _IOWR(BTRFS_IOCTL_MAGIC, 36, \
602 struct btrfs_ioctl_ino_path_args)
603 #define BTRFS_IOC_SET_RECEIVED_SUBVOL _IOWR(BTRFS_IOCTL_MAGIC, 37, \
604 struct btrfs_ioctl_received_subvol_args)
605 #define BTRFS_IOC_SEND _IOW(BTRFS_IOCTL_MAGIC, 38, struct btrfs_ioctl_send_args)
606 #define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, \
607 struct btrfs_ioctl_vol_args)
608 #define BTRFS_IOC_QUOTA_CTL _IOWR(BTRFS_IOCTL_MAGIC, 40, \
609 struct btrfs_ioctl_quota_ctl_args)
610 #define BTRFS_IOC_QGROUP_ASSIGN _IOW(BTRFS_IOCTL_MAGIC, 41, \
611 struct btrfs_ioctl_qgroup_assign_args)
612 #define BTRFS_IOC_QGROUP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 42, \
613 struct btrfs_ioctl_qgroup_create_args)
614 #define BTRFS_IOC_QGROUP_LIMIT _IOR(BTRFS_IOCTL_MAGIC, 43, \
615 struct btrfs_ioctl_qgroup_limit_args)
616 #define BTRFS_IOC_QUOTA_RESCAN _IOW(BTRFS_IOCTL_MAGIC, 44, \
617 struct btrfs_ioctl_quota_rescan_args)
618 #define BTRFS_IOC_QUOTA_RESCAN_STATUS _IOR(BTRFS_IOCTL_MAGIC, 45, \
619 struct btrfs_ioctl_quota_rescan_args)
620 #define BTRFS_IOC_QUOTA_RESCAN_WAIT _IO(BTRFS_IOCTL_MAGIC, 46)
621 #define BTRFS_IOC_GET_FSLABEL _IOR(BTRFS_IOCTL_MAGIC, 49, \
622 char[BTRFS_LABEL_SIZE])
623 #define BTRFS_IOC_SET_FSLABEL _IOW(BTRFS_IOCTL_MAGIC, 50, \
624 char[BTRFS_LABEL_SIZE])
625 #define BTRFS_IOC_GET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 52, \
626 struct btrfs_ioctl_get_dev_stats)
627 #define BTRFS_IOC_DEV_REPLACE _IOWR(BTRFS_IOCTL_MAGIC, 53, \
628 struct btrfs_ioctl_dev_replace_args)
629 #define BTRFS_IOC_FILE_EXTENT_SAME _IOWR(BTRFS_IOCTL_MAGIC, 54, \
630 struct btrfs_ioctl_same_args)
631 #define BTRFS_IOC_GET_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
632 struct btrfs_ioctl_feature_flags)
633 #define BTRFS_IOC_SET_FEATURES _IOW(BTRFS_IOCTL_MAGIC, 57, \
634 struct btrfs_ioctl_feature_flags[2])
635 #define BTRFS_IOC_GET_SUPPORTED_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
636 struct btrfs_ioctl_feature_flags[3])
638 #endif /* _UAPI_LINUX_BTRFS_H */