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 __BTRFS_IOCTL_H__
20 #define __BTRFS_IOCTL_H__
26 #include <asm/types.h>
27 #include <linux/ioctl.h>
33 #define BTRFS_IOCTL_MAGIC 0x94
34 #define BTRFS_VOL_NAME_MAX 255
36 /* this should be 4k */
37 #define BTRFS_PATH_NAME_MAX 4087
38 struct btrfs_ioctl_vol_args {
40 char name[BTRFS_PATH_NAME_MAX + 1];
43 #define BTRFS_DEVICE_PATH_NAME_MAX 1024
45 #define BTRFS_SUBVOL_CREATE_ASYNC (1ULL << 0)
46 #define BTRFS_SUBVOL_RDONLY (1ULL << 1)
47 #define BTRFS_SUBVOL_QGROUP_INHERIT (1ULL << 2)
48 #define BTRFS_FSID_SIZE 16
49 #define BTRFS_UUID_SIZE 16
51 #define BTRFS_QGROUP_INHERIT_SET_LIMITS (1ULL << 0)
53 struct btrfs_qgroup_limit {
61 struct btrfs_qgroup_inherit {
65 __u64 num_excl_copies;
66 struct btrfs_qgroup_limit lim;
70 struct btrfs_ioctl_qgroup_limit_args {
72 struct btrfs_qgroup_limit lim;
75 #define BTRFS_SUBVOL_NAME_MAX 4039
76 struct btrfs_ioctl_vol_args_v2 {
83 struct btrfs_qgroup_inherit __user *qgroup_inherit;
87 char name[BTRFS_SUBVOL_NAME_MAX + 1];
91 * structure to report errors and progress to userspace, either as a
92 * result of a finished scrub, a canceled scrub or a progress inquiry
94 struct btrfs_scrub_progress {
95 __u64 data_extents_scrubbed; /* # of data extents scrubbed */
96 __u64 tree_extents_scrubbed; /* # of tree extents scrubbed */
97 __u64 data_bytes_scrubbed; /* # of data bytes scrubbed */
98 __u64 tree_bytes_scrubbed; /* # of tree bytes scrubbed */
99 __u64 read_errors; /* # of read errors encountered (EIO) */
100 __u64 csum_errors; /* # of failed csum checks */
101 __u64 verify_errors; /* # of occurences, where the metadata
102 * of a tree block did not match the
103 * expected values, like generation or
105 __u64 no_csum; /* # of 4k data block for which no csum
106 * is present, probably the result of
107 * data written with nodatasum */
108 __u64 csum_discards; /* # of csum for which no data was found
109 * in the extent tree. */
110 __u64 super_errors; /* # of bad super blocks encountered */
111 __u64 malloc_errors; /* # of internal kmalloc errors. These
112 * will likely cause an incomplete
114 __u64 uncorrectable_errors; /* # of errors where either no intact
115 * copy was found or the writeback
117 __u64 corrected_errors; /* # of errors corrected */
118 __u64 last_physical; /* last physical address scrubbed. In
119 * case a scrub was aborted, this can
120 * be used to restart the scrub */
121 __u64 unverified_errors; /* # of occurences where a read for a
122 * full (64k) bio failed, but the re-
123 * check succeeded for each 4k piece.
124 * Intermittent error. */
127 #define BTRFS_SCRUB_READONLY 1
128 struct btrfs_ioctl_scrub_args {
129 __u64 devid; /* in */
130 __u64 start; /* in */
132 __u64 flags; /* in */
133 struct btrfs_scrub_progress progress; /* out */
135 __u64 unused[(1024-32-sizeof(struct btrfs_scrub_progress))/8];
138 #define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_ALWAYS 0
139 #define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_AVOID 1
140 struct btrfs_ioctl_dev_replace_start_params {
141 __u64 srcdevid; /* in, if 0, use srcdev_name instead */
142 __u64 cont_reading_from_srcdev_mode; /* in, see #define
144 __u8 srcdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1]; /* in */
145 __u8 tgtdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1]; /* in */
148 #define BTRFS_IOCTL_DEV_REPLACE_STATE_NEVER_STARTED 0
149 #define BTRFS_IOCTL_DEV_REPLACE_STATE_STARTED 1
150 #define BTRFS_IOCTL_DEV_REPLACE_STATE_FINISHED 2
151 #define BTRFS_IOCTL_DEV_REPLACE_STATE_CANCELED 3
152 #define BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED 4
153 struct btrfs_ioctl_dev_replace_status_params {
154 __u64 replace_state; /* out, see #define above */
155 __u64 progress_1000; /* out, 0 <= x <= 1000 */
156 __u64 time_started; /* out, seconds since 1-Jan-1970 */
157 __u64 time_stopped; /* out, seconds since 1-Jan-1970 */
158 __u64 num_write_errors; /* out */
159 __u64 num_uncorrectable_read_errors; /* out */
162 #define BTRFS_IOCTL_DEV_REPLACE_CMD_START 0
163 #define BTRFS_IOCTL_DEV_REPLACE_CMD_STATUS 1
164 #define BTRFS_IOCTL_DEV_REPLACE_CMD_CANCEL 2
165 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_RESULT -1
166 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR 0
167 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_NOT_STARTED 1
168 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_ALREADY_STARTED 2
169 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_SCRUB_INPROGRESS 3
170 struct btrfs_ioctl_dev_replace_args {
172 __u64 result; /* out */
175 struct btrfs_ioctl_dev_replace_start_params start;
176 struct btrfs_ioctl_dev_replace_status_params status;
182 struct btrfs_ioctl_dev_info_args {
183 __u64 devid; /* in/out */
184 __u8 uuid[BTRFS_UUID_SIZE]; /* in/out */
185 __u64 bytes_used; /* out */
186 __u64 total_bytes; /* out */
187 __u64 unused[379]; /* pad to 4k */
188 __u8 path[BTRFS_DEVICE_PATH_NAME_MAX]; /* out */
191 struct btrfs_ioctl_fs_info_args {
192 __u64 max_id; /* out */
193 __u64 num_devices; /* out */
194 __u8 fsid[BTRFS_FSID_SIZE]; /* out */
195 __u32 nodesize; /* out */
196 __u32 sectorsize; /* out */
197 __u32 clone_alignment; /* out */
199 __u64 reserved[122]; /* pad to 1k */
202 struct btrfs_ioctl_feature_flags {
204 __u64 compat_ro_flags;
205 __u64 incompat_flags;
208 /* balance control ioctl modes */
209 #define BTRFS_BALANCE_CTL_PAUSE 1
210 #define BTRFS_BALANCE_CTL_CANCEL 2
211 #define BTRFS_BALANCE_CTL_RESUME 3
214 * this is packed, because it should be exactly the same as its disk
215 * byte order counterpart (struct btrfs_disk_balance_args)
217 struct btrfs_balance_args {
231 * BTRFS_BALANCE_ARGS_LIMIT with value 'limit'
232 * BTRFS_BALANCE_ARGS_LIMIT_RANGE - the extend version can use minimum
236 __u64 limit; /* limit number of processed chunks */
245 } __attribute__ ((__packed__));
247 /* report balance progress to userspace */
248 struct btrfs_balance_progress {
249 __u64 expected; /* estimated # of chunks that will be
250 * relocated to fulfill the request */
251 __u64 considered; /* # of chunks we have considered so far */
252 __u64 completed; /* # of chunks relocated so far */
255 #define BTRFS_BALANCE_STATE_RUNNING (1ULL << 0)
256 #define BTRFS_BALANCE_STATE_PAUSE_REQ (1ULL << 1)
257 #define BTRFS_BALANCE_STATE_CANCEL_REQ (1ULL << 2)
259 struct btrfs_ioctl_balance_args {
260 __u64 flags; /* in/out */
261 __u64 state; /* out */
263 struct btrfs_balance_args data; /* in/out */
264 struct btrfs_balance_args meta; /* in/out */
265 struct btrfs_balance_args sys; /* in/out */
267 struct btrfs_balance_progress stat; /* out */
269 __u64 unused[72]; /* pad to 1k */
272 #define BTRFS_INO_LOOKUP_PATH_MAX 4080
273 struct btrfs_ioctl_ino_lookup_args {
276 char name[BTRFS_INO_LOOKUP_PATH_MAX];
279 struct btrfs_ioctl_search_key {
280 /* which root are we searching. 0 is the tree of tree roots */
283 /* keys returned will be >= min and <= max */
287 /* keys returned will be >= min and <= max */
291 /* max and min transids to search for */
295 /* keys returned will be >= min and <= max */
300 * how many items did userland ask for, and how many are we
305 /* align to 64 bits */
308 /* some extra for later */
315 struct btrfs_ioctl_search_header {
321 } __attribute__((may_alias));
323 #define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key))
325 * the buf is an array of search headers where
326 * each header is followed by the actual item
327 * the type field is expanded to 32 bits for alignment
329 struct btrfs_ioctl_search_args {
330 struct btrfs_ioctl_search_key key;
331 char buf[BTRFS_SEARCH_ARGS_BUFSIZE];
335 * Extended version of TREE_SEARCH ioctl that can return more than 4k of bytes.
336 * The allocated size of the buffer is set in buf_size.
338 struct btrfs_ioctl_search_args_v2 {
339 struct btrfs_ioctl_search_key key; /* in/out - search parameters */
340 __u64 buf_size; /* in - size of buffer
341 * out - on EOVERFLOW: needed size
343 __u64 buf[0]; /* out - found items */
346 /* With a @src_length of zero, the range from @src_offset->EOF is cloned! */
347 struct btrfs_ioctl_clone_range_args {
349 __u64 src_offset, src_length;
353 /* flags for the defrag range ioctl */
354 #define BTRFS_DEFRAG_RANGE_COMPRESS 1
355 #define BTRFS_DEFRAG_RANGE_START_IO 2
357 #define BTRFS_SAME_DATA_DIFFERS 1
358 /* For extent-same ioctl */
359 struct btrfs_ioctl_same_extent_info {
360 __s64 fd; /* in - destination file */
361 __u64 logical_offset; /* in - start of extent in destination */
362 __u64 bytes_deduped; /* out - total # of bytes we were able
363 * to dedupe from this file */
364 /* status of this dedupe operation:
365 * 0 if dedup succeeds
367 * == BTRFS_SAME_DATA_DIFFERS if data differs
369 __s32 status; /* out - see above description */
373 struct btrfs_ioctl_same_args {
374 __u64 logical_offset; /* in - start of extent in source */
375 __u64 length; /* in - length of extent */
376 __u16 dest_count; /* in - total elements in info array */
379 struct btrfs_ioctl_same_extent_info info[0];
382 struct btrfs_ioctl_defrag_range_args {
383 /* start of the defrag operation */
386 /* number of bytes to defrag, use (u64)-1 to say all */
390 * flags for the operation, which can include turning
391 * on compression for this one defrag
396 * any extent bigger than this will be considered
397 * already defragged. Use 0 to take the kernel default
398 * Use 1 to say every single extent must be rewritten
403 * which compression method to use if turning on compression
404 * for this defrag operation. If unspecified, zlib will
409 /* spare for later */
413 struct btrfs_ioctl_space_info {
419 struct btrfs_ioctl_space_args {
422 struct btrfs_ioctl_space_info spaces[0];
425 struct btrfs_data_container {
426 __u32 bytes_left; /* out -- bytes not needed to deliver output */
427 __u32 bytes_missing; /* out -- additional bytes needed for result */
428 __u32 elem_cnt; /* out */
429 __u32 elem_missed; /* out */
430 __u64 val[0]; /* out */
433 struct btrfs_ioctl_ino_path_args {
437 /* struct btrfs_data_container *fspath; out */
438 __u64 fspath; /* out */
441 struct btrfs_ioctl_logical_ino_args {
442 __u64 logical; /* in */
445 /* struct btrfs_data_container *inodes; out */
449 enum btrfs_dev_stat_values {
450 /* disk I/O failure stats */
451 BTRFS_DEV_STAT_WRITE_ERRS, /* EIO or EREMOTEIO from lower layers */
452 BTRFS_DEV_STAT_READ_ERRS, /* EIO or EREMOTEIO from lower layers */
453 BTRFS_DEV_STAT_FLUSH_ERRS, /* EIO or EREMOTEIO from lower layers */
455 /* stats for indirect indications for I/O failures */
456 BTRFS_DEV_STAT_CORRUPTION_ERRS, /* checksum error, bytenr error or
457 * contents is illegal: this is an
458 * indication that the block was damaged
459 * during read or write, or written to
460 * wrong location or read from wrong
462 BTRFS_DEV_STAT_GENERATION_ERRS, /* an indication that blocks have not
465 BTRFS_DEV_STAT_VALUES_MAX
468 /* Reset statistics after reading; needs SYS_ADMIN capability */
469 #define BTRFS_DEV_STATS_RESET (1ULL << 0)
471 struct btrfs_ioctl_get_dev_stats {
472 __u64 devid; /* in */
473 __u64 nr_items; /* in/out */
474 __u64 flags; /* in/out */
477 __u64 values[BTRFS_DEV_STAT_VALUES_MAX];
479 __u64 unused[128 - 2 - BTRFS_DEV_STAT_VALUES_MAX]; /* pad to 1k */
482 /* BTRFS_IOC_SNAP_CREATE is no longer used by the btrfs command */
483 #define BTRFS_QUOTA_CTL_ENABLE 1
484 #define BTRFS_QUOTA_CTL_DISABLE 2
485 /* 3 has formerly been reserved for BTRFS_QUOTA_CTL_RESCAN */
486 struct btrfs_ioctl_quota_ctl_args {
491 struct btrfs_ioctl_quota_rescan_args {
497 struct btrfs_ioctl_qgroup_assign_args {
503 struct btrfs_ioctl_qgroup_create_args {
507 struct btrfs_ioctl_timespec {
512 struct btrfs_ioctl_received_subvol_args {
513 char uuid[BTRFS_UUID_SIZE]; /* in */
514 __u64 stransid; /* in */
515 __u64 rtransid; /* out */
516 struct btrfs_ioctl_timespec stime; /* in */
517 struct btrfs_ioctl_timespec rtime; /* out */
518 __u64 flags; /* in */
519 __u64 reserved[16]; /* in */
523 * Caller doesn't want file data in the send stream, even if the
524 * search of clone sources doesn't find an extent. UPDATE_EXTENT
525 * commands will be sent instead of WRITE commands.
527 #define BTRFS_SEND_FLAG_NO_FILE_DATA 0x1
530 * Do not add the leading stream header. Used when multiple snapshots
531 * are sent back to back.
533 #define BTRFS_SEND_FLAG_OMIT_STREAM_HEADER 0x2
536 * Omit the command at the end of the stream that indicated the end
537 * of the stream. This option is used when multiple snapshots are
540 #define BTRFS_SEND_FLAG_OMIT_END_CMD 0x4
542 #define BTRFS_SEND_FLAG_MASK \
543 (BTRFS_SEND_FLAG_NO_FILE_DATA | \
544 BTRFS_SEND_FLAG_OMIT_STREAM_HEADER | \
545 BTRFS_SEND_FLAG_OMIT_END_CMD)
547 struct btrfs_ioctl_send_args {
548 __s64 send_fd; /* in */
549 __u64 clone_sources_count; /* in */
550 __u64 __user *clone_sources; /* in */
551 __u64 parent_root; /* in */
552 __u64 flags; /* in */
553 __u64 reserved[4]; /* in */
556 /* Error codes as returned by the kernel */
557 enum btrfs_err_code {
559 BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET,
560 BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET,
561 BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET,
562 BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET,
563 BTRFS_ERROR_DEV_TGT_REPLACE,
564 BTRFS_ERROR_DEV_MISSING_NOT_FOUND,
565 BTRFS_ERROR_DEV_ONLY_WRITABLE,
566 BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS
569 /* An error code to error string mapping for the kernel
572 static inline char *btrfs_err_str(enum btrfs_err_code err_code)
575 case BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET:
576 return "unable to go below two devices on raid1";
577 case BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET:
578 return "unable to go below four devices on raid10";
579 case BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET:
580 return "unable to go below two devices on raid5";
581 case BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET:
582 return "unable to go below three devices on raid6";
583 case BTRFS_ERROR_DEV_TGT_REPLACE:
584 return "unable to remove the dev_replace target dev";
585 case BTRFS_ERROR_DEV_MISSING_NOT_FOUND:
586 return "no missing devices found to remove";
587 case BTRFS_ERROR_DEV_ONLY_WRITABLE:
588 return "unable to remove the only writeable device";
589 case BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS:
590 return "add/delete/balance/replace/resize operation "
597 #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
598 struct btrfs_ioctl_vol_args)
599 #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
600 struct btrfs_ioctl_vol_args)
601 #define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
602 struct btrfs_ioctl_vol_args)
603 #define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
604 struct btrfs_ioctl_vol_args)
605 /* trans start and trans end are dangerous, and only for
606 * use by applications that know how to avoid the
607 * resulting deadlocks
609 #define BTRFS_IOC_TRANS_START _IO(BTRFS_IOCTL_MAGIC, 6)
610 #define BTRFS_IOC_TRANS_END _IO(BTRFS_IOCTL_MAGIC, 7)
611 #define BTRFS_IOC_SYNC _IO(BTRFS_IOCTL_MAGIC, 8)
613 #define BTRFS_IOC_CLONE _IOW(BTRFS_IOCTL_MAGIC, 9, int)
614 #define BTRFS_IOC_ADD_DEV _IOW(BTRFS_IOCTL_MAGIC, 10, \
615 struct btrfs_ioctl_vol_args)
616 #define BTRFS_IOC_RM_DEV _IOW(BTRFS_IOCTL_MAGIC, 11, \
617 struct btrfs_ioctl_vol_args)
618 #define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \
619 struct btrfs_ioctl_vol_args)
621 #define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
622 struct btrfs_ioctl_clone_range_args)
624 #define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
625 struct btrfs_ioctl_vol_args)
626 #define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \
627 struct btrfs_ioctl_vol_args)
628 #define BTRFS_IOC_DEFRAG_RANGE _IOW(BTRFS_IOCTL_MAGIC, 16, \
629 struct btrfs_ioctl_defrag_range_args)
630 #define BTRFS_IOC_TREE_SEARCH _IOWR(BTRFS_IOCTL_MAGIC, 17, \
631 struct btrfs_ioctl_search_args)
632 #define BTRFS_IOC_TREE_SEARCH_V2 _IOWR(BTRFS_IOCTL_MAGIC, 17, \
633 struct btrfs_ioctl_search_args_v2)
634 #define BTRFS_IOC_INO_LOOKUP _IOWR(BTRFS_IOCTL_MAGIC, 18, \
635 struct btrfs_ioctl_ino_lookup_args)
636 #define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, __u64)
637 #define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, \
638 struct btrfs_ioctl_space_args)
639 #define BTRFS_IOC_START_SYNC _IOR(BTRFS_IOCTL_MAGIC, 24, __u64)
640 #define BTRFS_IOC_WAIT_SYNC _IOW(BTRFS_IOCTL_MAGIC, 22, __u64)
641 #define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \
642 struct btrfs_ioctl_vol_args_v2)
643 #define BTRFS_IOC_SUBVOL_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 24, \
644 struct btrfs_ioctl_vol_args_v2)
645 #define BTRFS_IOC_SUBVOL_GETFLAGS _IOR(BTRFS_IOCTL_MAGIC, 25, __u64)
646 #define BTRFS_IOC_SUBVOL_SETFLAGS _IOW(BTRFS_IOCTL_MAGIC, 26, __u64)
647 #define BTRFS_IOC_SCRUB _IOWR(BTRFS_IOCTL_MAGIC, 27, \
648 struct btrfs_ioctl_scrub_args)
649 #define BTRFS_IOC_SCRUB_CANCEL _IO(BTRFS_IOCTL_MAGIC, 28)
650 #define BTRFS_IOC_SCRUB_PROGRESS _IOWR(BTRFS_IOCTL_MAGIC, 29, \
651 struct btrfs_ioctl_scrub_args)
652 #define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
653 struct btrfs_ioctl_dev_info_args)
654 #define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
655 struct btrfs_ioctl_fs_info_args)
656 #define BTRFS_IOC_BALANCE_V2 _IOWR(BTRFS_IOCTL_MAGIC, 32, \
657 struct btrfs_ioctl_balance_args)
658 #define BTRFS_IOC_BALANCE_CTL _IOW(BTRFS_IOCTL_MAGIC, 33, int)
659 #define BTRFS_IOC_BALANCE_PROGRESS _IOR(BTRFS_IOCTL_MAGIC, 34, \
660 struct btrfs_ioctl_balance_args)
661 #define BTRFS_IOC_INO_PATHS _IOWR(BTRFS_IOCTL_MAGIC, 35, \
662 struct btrfs_ioctl_ino_path_args)
663 #define BTRFS_IOC_LOGICAL_INO _IOWR(BTRFS_IOCTL_MAGIC, 36, \
664 struct btrfs_ioctl_ino_path_args)
665 #define BTRFS_IOC_SET_RECEIVED_SUBVOL _IOWR(BTRFS_IOCTL_MAGIC, 37, \
666 struct btrfs_ioctl_received_subvol_args)
667 #define BTRFS_IOC_SEND _IOW(BTRFS_IOCTL_MAGIC, 38, struct btrfs_ioctl_send_args)
668 #define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, \
669 struct btrfs_ioctl_vol_args)
670 #define BTRFS_IOC_QUOTA_CTL _IOWR(BTRFS_IOCTL_MAGIC, 40, \
671 struct btrfs_ioctl_quota_ctl_args)
672 #define BTRFS_IOC_QGROUP_ASSIGN _IOW(BTRFS_IOCTL_MAGIC, 41, \
673 struct btrfs_ioctl_qgroup_assign_args)
674 #define BTRFS_IOC_QGROUP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 42, \
675 struct btrfs_ioctl_qgroup_create_args)
676 #define BTRFS_IOC_QGROUP_LIMIT _IOR(BTRFS_IOCTL_MAGIC, 43, \
677 struct btrfs_ioctl_qgroup_limit_args)
678 #define BTRFS_IOC_QUOTA_RESCAN _IOW(BTRFS_IOCTL_MAGIC, 44, \
679 struct btrfs_ioctl_quota_rescan_args)
680 #define BTRFS_IOC_QUOTA_RESCAN_STATUS _IOR(BTRFS_IOCTL_MAGIC, 45, \
681 struct btrfs_ioctl_quota_rescan_args)
682 #define BTRFS_IOC_QUOTA_RESCAN_WAIT _IO(BTRFS_IOCTL_MAGIC, 46)
683 #define BTRFS_IOC_GET_FSLABEL _IOR(BTRFS_IOCTL_MAGIC, 49, \
684 char[BTRFS_LABEL_SIZE])
685 #define BTRFS_IOC_SET_FSLABEL _IOW(BTRFS_IOCTL_MAGIC, 50, \
686 char[BTRFS_LABEL_SIZE])
687 #define BTRFS_IOC_GET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 52, \
688 struct btrfs_ioctl_get_dev_stats)
689 #define BTRFS_IOC_DEV_REPLACE _IOWR(BTRFS_IOCTL_MAGIC, 53, \
690 struct btrfs_ioctl_dev_replace_args)
691 #define BTRFS_IOC_FILE_EXTENT_SAME _IOWR(BTRFS_IOCTL_MAGIC, 54, \
692 struct btrfs_ioctl_same_args)
693 #define BTRFS_IOC_GET_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
694 struct btrfs_ioctl_feature_flags)
695 #define BTRFS_IOC_SET_FEATURES _IOW(BTRFS_IOCTL_MAGIC, 57, \
696 struct btrfs_ioctl_feature_flags[2])
697 #define BTRFS_IOC_GET_SUPPORTED_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
698 struct btrfs_ioctl_feature_flags[3])