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 {
230 __u64 limit; /* limit number of processed chunks */
232 } __attribute__ ((__packed__));
234 /* report balance progress to userspace */
235 struct btrfs_balance_progress {
236 __u64 expected; /* estimated # of chunks that will be
237 * relocated to fulfill the request */
238 __u64 considered; /* # of chunks we have considered so far */
239 __u64 completed; /* # of chunks relocated so far */
242 #define BTRFS_BALANCE_STATE_RUNNING (1ULL << 0)
243 #define BTRFS_BALANCE_STATE_PAUSE_REQ (1ULL << 1)
244 #define BTRFS_BALANCE_STATE_CANCEL_REQ (1ULL << 2)
246 struct btrfs_ioctl_balance_args {
247 __u64 flags; /* in/out */
248 __u64 state; /* out */
250 struct btrfs_balance_args data; /* in/out */
251 struct btrfs_balance_args meta; /* in/out */
252 struct btrfs_balance_args sys; /* in/out */
254 struct btrfs_balance_progress stat; /* out */
256 __u64 unused[72]; /* pad to 1k */
259 #define BTRFS_INO_LOOKUP_PATH_MAX 4080
260 struct btrfs_ioctl_ino_lookup_args {
263 char name[BTRFS_INO_LOOKUP_PATH_MAX];
266 struct btrfs_ioctl_search_key {
267 /* which root are we searching. 0 is the tree of tree roots */
270 /* keys returned will be >= min and <= max */
274 /* keys returned will be >= min and <= max */
278 /* max and min transids to search for */
282 /* keys returned will be >= min and <= max */
287 * how many items did userland ask for, and how many are we
292 /* align to 64 bits */
295 /* some extra for later */
302 struct btrfs_ioctl_search_header {
308 } __attribute__((may_alias));
310 #define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key))
312 * the buf is an array of search headers where
313 * each header is followed by the actual item
314 * the type field is expanded to 32 bits for alignment
316 struct btrfs_ioctl_search_args {
317 struct btrfs_ioctl_search_key key;
318 char buf[BTRFS_SEARCH_ARGS_BUFSIZE];
322 * Extended version of TREE_SEARCH ioctl that can return more than 4k of bytes.
323 * The allocated size of the buffer is set in buf_size.
325 struct btrfs_ioctl_search_args_v2 {
326 struct btrfs_ioctl_search_key key; /* in/out - search parameters */
327 __u64 buf_size; /* in - size of buffer
328 * out - on EOVERFLOW: needed size
330 __u64 buf[0]; /* out - found items */
333 /* With a @src_length of zero, the range from @src_offset->EOF is cloned! */
334 struct btrfs_ioctl_clone_range_args {
336 __u64 src_offset, src_length;
340 /* flags for the defrag range ioctl */
341 #define BTRFS_DEFRAG_RANGE_COMPRESS 1
342 #define BTRFS_DEFRAG_RANGE_START_IO 2
344 #define BTRFS_SAME_DATA_DIFFERS 1
345 /* For extent-same ioctl */
346 struct btrfs_ioctl_same_extent_info {
347 __s64 fd; /* in - destination file */
348 __u64 logical_offset; /* in - start of extent in destination */
349 __u64 bytes_deduped; /* out - total # of bytes we were able
350 * to dedupe from this file */
351 /* status of this dedupe operation:
352 * 0 if dedup succeeds
354 * == BTRFS_SAME_DATA_DIFFERS if data differs
356 __s32 status; /* out - see above description */
360 struct btrfs_ioctl_same_args {
361 __u64 logical_offset; /* in - start of extent in source */
362 __u64 length; /* in - length of extent */
363 __u16 dest_count; /* in - total elements in info array */
366 struct btrfs_ioctl_same_extent_info info[0];
369 struct btrfs_ioctl_defrag_range_args {
370 /* start of the defrag operation */
373 /* number of bytes to defrag, use (u64)-1 to say all */
377 * flags for the operation, which can include turning
378 * on compression for this one defrag
383 * any extent bigger than this will be considered
384 * already defragged. Use 0 to take the kernel default
385 * Use 1 to say every single extent must be rewritten
390 * which compression method to use if turning on compression
391 * for this defrag operation. If unspecified, zlib will
396 /* spare for later */
400 struct btrfs_ioctl_space_info {
406 struct btrfs_ioctl_space_args {
409 struct btrfs_ioctl_space_info spaces[0];
412 struct btrfs_data_container {
413 __u32 bytes_left; /* out -- bytes not needed to deliver output */
414 __u32 bytes_missing; /* out -- additional bytes needed for result */
415 __u32 elem_cnt; /* out */
416 __u32 elem_missed; /* out */
417 __u64 val[0]; /* out */
420 struct btrfs_ioctl_ino_path_args {
424 /* struct btrfs_data_container *fspath; out */
425 __u64 fspath; /* out */
428 struct btrfs_ioctl_logical_ino_args {
429 __u64 logical; /* in */
432 /* struct btrfs_data_container *inodes; out */
436 enum btrfs_dev_stat_values {
437 /* disk I/O failure stats */
438 BTRFS_DEV_STAT_WRITE_ERRS, /* EIO or EREMOTEIO from lower layers */
439 BTRFS_DEV_STAT_READ_ERRS, /* EIO or EREMOTEIO from lower layers */
440 BTRFS_DEV_STAT_FLUSH_ERRS, /* EIO or EREMOTEIO from lower layers */
442 /* stats for indirect indications for I/O failures */
443 BTRFS_DEV_STAT_CORRUPTION_ERRS, /* checksum error, bytenr error or
444 * contents is illegal: this is an
445 * indication that the block was damaged
446 * during read or write, or written to
447 * wrong location or read from wrong
449 BTRFS_DEV_STAT_GENERATION_ERRS, /* an indication that blocks have not
452 BTRFS_DEV_STAT_VALUES_MAX
455 /* Reset statistics after reading; needs SYS_ADMIN capability */
456 #define BTRFS_DEV_STATS_RESET (1ULL << 0)
458 struct btrfs_ioctl_get_dev_stats {
459 __u64 devid; /* in */
460 __u64 nr_items; /* in/out */
461 __u64 flags; /* in/out */
464 __u64 values[BTRFS_DEV_STAT_VALUES_MAX];
466 __u64 unused[128 - 2 - BTRFS_DEV_STAT_VALUES_MAX]; /* pad to 1k */
469 /* BTRFS_IOC_SNAP_CREATE is no longer used by the btrfs command */
470 #define BTRFS_QUOTA_CTL_ENABLE 1
471 #define BTRFS_QUOTA_CTL_DISABLE 2
472 /* 3 has formerly been reserved for BTRFS_QUOTA_CTL_RESCAN */
473 struct btrfs_ioctl_quota_ctl_args {
478 struct btrfs_ioctl_quota_rescan_args {
484 struct btrfs_ioctl_qgroup_assign_args {
490 struct btrfs_ioctl_qgroup_create_args {
494 struct btrfs_ioctl_timespec {
499 struct btrfs_ioctl_received_subvol_args {
500 char uuid[BTRFS_UUID_SIZE]; /* in */
501 __u64 stransid; /* in */
502 __u64 rtransid; /* out */
503 struct btrfs_ioctl_timespec stime; /* in */
504 struct btrfs_ioctl_timespec rtime; /* out */
505 __u64 flags; /* in */
506 __u64 reserved[16]; /* in */
510 * Caller doesn't want file data in the send stream, even if the
511 * search of clone sources doesn't find an extent. UPDATE_EXTENT
512 * commands will be sent instead of WRITE commands.
514 #define BTRFS_SEND_FLAG_NO_FILE_DATA 0x1
517 * Do not add the leading stream header. Used when multiple snapshots
518 * are sent back to back.
520 #define BTRFS_SEND_FLAG_OMIT_STREAM_HEADER 0x2
523 * Omit the command at the end of the stream that indicated the end
524 * of the stream. This option is used when multiple snapshots are
527 #define BTRFS_SEND_FLAG_OMIT_END_CMD 0x4
529 #define BTRFS_SEND_FLAG_MASK \
530 (BTRFS_SEND_FLAG_NO_FILE_DATA | \
531 BTRFS_SEND_FLAG_OMIT_STREAM_HEADER | \
532 BTRFS_SEND_FLAG_OMIT_END_CMD)
534 struct btrfs_ioctl_send_args {
535 __s64 send_fd; /* in */
536 __u64 clone_sources_count; /* in */
537 __u64 __user *clone_sources; /* in */
538 __u64 parent_root; /* in */
539 __u64 flags; /* in */
540 __u64 reserved[4]; /* in */
543 /* Error codes as returned by the kernel */
544 enum btrfs_err_code {
546 BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET,
547 BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET,
548 BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET,
549 BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET,
550 BTRFS_ERROR_DEV_TGT_REPLACE,
551 BTRFS_ERROR_DEV_MISSING_NOT_FOUND,
552 BTRFS_ERROR_DEV_ONLY_WRITABLE,
553 BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS
556 /* An error code to error string mapping for the kernel
559 static inline char *btrfs_err_str(enum btrfs_err_code err_code)
562 case BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET:
563 return "unable to go below two devices on raid1";
564 case BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET:
565 return "unable to go below four devices on raid10";
566 case BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET:
567 return "unable to go below two devices on raid5";
568 case BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET:
569 return "unable to go below three devices on raid6";
570 case BTRFS_ERROR_DEV_TGT_REPLACE:
571 return "unable to remove the dev_replace target dev";
572 case BTRFS_ERROR_DEV_MISSING_NOT_FOUND:
573 return "no missing devices found to remove";
574 case BTRFS_ERROR_DEV_ONLY_WRITABLE:
575 return "unable to remove the only writeable device";
576 case BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS:
577 return "add/delete/balance/replace/resize operation "
584 #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
585 struct btrfs_ioctl_vol_args)
586 #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
587 struct btrfs_ioctl_vol_args)
588 #define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
589 struct btrfs_ioctl_vol_args)
590 #define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
591 struct btrfs_ioctl_vol_args)
592 /* trans start and trans end are dangerous, and only for
593 * use by applications that know how to avoid the
594 * resulting deadlocks
596 #define BTRFS_IOC_TRANS_START _IO(BTRFS_IOCTL_MAGIC, 6)
597 #define BTRFS_IOC_TRANS_END _IO(BTRFS_IOCTL_MAGIC, 7)
598 #define BTRFS_IOC_SYNC _IO(BTRFS_IOCTL_MAGIC, 8)
600 #define BTRFS_IOC_CLONE _IOW(BTRFS_IOCTL_MAGIC, 9, int)
601 #define BTRFS_IOC_ADD_DEV _IOW(BTRFS_IOCTL_MAGIC, 10, \
602 struct btrfs_ioctl_vol_args)
603 #define BTRFS_IOC_RM_DEV _IOW(BTRFS_IOCTL_MAGIC, 11, \
604 struct btrfs_ioctl_vol_args)
605 #define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \
606 struct btrfs_ioctl_vol_args)
608 #define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
609 struct btrfs_ioctl_clone_range_args)
611 #define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
612 struct btrfs_ioctl_vol_args)
613 #define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \
614 struct btrfs_ioctl_vol_args)
615 #define BTRFS_IOC_DEFRAG_RANGE _IOW(BTRFS_IOCTL_MAGIC, 16, \
616 struct btrfs_ioctl_defrag_range_args)
617 #define BTRFS_IOC_TREE_SEARCH _IOWR(BTRFS_IOCTL_MAGIC, 17, \
618 struct btrfs_ioctl_search_args)
619 #define BTRFS_IOC_TREE_SEARCH_V2 _IOWR(BTRFS_IOCTL_MAGIC, 17, \
620 struct btrfs_ioctl_search_args_v2)
621 #define BTRFS_IOC_INO_LOOKUP _IOWR(BTRFS_IOCTL_MAGIC, 18, \
622 struct btrfs_ioctl_ino_lookup_args)
623 #define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, __u64)
624 #define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, \
625 struct btrfs_ioctl_space_args)
626 #define BTRFS_IOC_START_SYNC _IOR(BTRFS_IOCTL_MAGIC, 24, __u64)
627 #define BTRFS_IOC_WAIT_SYNC _IOW(BTRFS_IOCTL_MAGIC, 22, __u64)
628 #define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \
629 struct btrfs_ioctl_vol_args_v2)
630 #define BTRFS_IOC_SUBVOL_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 24, \
631 struct btrfs_ioctl_vol_args_v2)
632 #define BTRFS_IOC_SUBVOL_GETFLAGS _IOR(BTRFS_IOCTL_MAGIC, 25, __u64)
633 #define BTRFS_IOC_SUBVOL_SETFLAGS _IOW(BTRFS_IOCTL_MAGIC, 26, __u64)
634 #define BTRFS_IOC_SCRUB _IOWR(BTRFS_IOCTL_MAGIC, 27, \
635 struct btrfs_ioctl_scrub_args)
636 #define BTRFS_IOC_SCRUB_CANCEL _IO(BTRFS_IOCTL_MAGIC, 28)
637 #define BTRFS_IOC_SCRUB_PROGRESS _IOWR(BTRFS_IOCTL_MAGIC, 29, \
638 struct btrfs_ioctl_scrub_args)
639 #define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
640 struct btrfs_ioctl_dev_info_args)
641 #define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
642 struct btrfs_ioctl_fs_info_args)
643 #define BTRFS_IOC_BALANCE_V2 _IOWR(BTRFS_IOCTL_MAGIC, 32, \
644 struct btrfs_ioctl_balance_args)
645 #define BTRFS_IOC_BALANCE_CTL _IOW(BTRFS_IOCTL_MAGIC, 33, int)
646 #define BTRFS_IOC_BALANCE_PROGRESS _IOR(BTRFS_IOCTL_MAGIC, 34, \
647 struct btrfs_ioctl_balance_args)
648 #define BTRFS_IOC_INO_PATHS _IOWR(BTRFS_IOCTL_MAGIC, 35, \
649 struct btrfs_ioctl_ino_path_args)
650 #define BTRFS_IOC_LOGICAL_INO _IOWR(BTRFS_IOCTL_MAGIC, 36, \
651 struct btrfs_ioctl_ino_path_args)
652 #define BTRFS_IOC_SET_RECEIVED_SUBVOL _IOWR(BTRFS_IOCTL_MAGIC, 37, \
653 struct btrfs_ioctl_received_subvol_args)
654 #define BTRFS_IOC_SEND _IOW(BTRFS_IOCTL_MAGIC, 38, struct btrfs_ioctl_send_args)
655 #define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, \
656 struct btrfs_ioctl_vol_args)
657 #define BTRFS_IOC_QUOTA_CTL _IOWR(BTRFS_IOCTL_MAGIC, 40, \
658 struct btrfs_ioctl_quota_ctl_args)
659 #define BTRFS_IOC_QGROUP_ASSIGN _IOW(BTRFS_IOCTL_MAGIC, 41, \
660 struct btrfs_ioctl_qgroup_assign_args)
661 #define BTRFS_IOC_QGROUP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 42, \
662 struct btrfs_ioctl_qgroup_create_args)
663 #define BTRFS_IOC_QGROUP_LIMIT _IOR(BTRFS_IOCTL_MAGIC, 43, \
664 struct btrfs_ioctl_qgroup_limit_args)
665 #define BTRFS_IOC_QUOTA_RESCAN _IOW(BTRFS_IOCTL_MAGIC, 44, \
666 struct btrfs_ioctl_quota_rescan_args)
667 #define BTRFS_IOC_QUOTA_RESCAN_STATUS _IOR(BTRFS_IOCTL_MAGIC, 45, \
668 struct btrfs_ioctl_quota_rescan_args)
669 #define BTRFS_IOC_QUOTA_RESCAN_WAIT _IO(BTRFS_IOCTL_MAGIC, 46)
670 #define BTRFS_IOC_GET_FSLABEL _IOR(BTRFS_IOCTL_MAGIC, 49, \
671 char[BTRFS_LABEL_SIZE])
672 #define BTRFS_IOC_SET_FSLABEL _IOW(BTRFS_IOCTL_MAGIC, 50, \
673 char[BTRFS_LABEL_SIZE])
674 #define BTRFS_IOC_GET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 52, \
675 struct btrfs_ioctl_get_dev_stats)
676 #define BTRFS_IOC_DEV_REPLACE _IOWR(BTRFS_IOCTL_MAGIC, 53, \
677 struct btrfs_ioctl_dev_replace_args)
678 #define BTRFS_IOC_FILE_EXTENT_SAME _IOWR(BTRFS_IOCTL_MAGIC, 54, \
679 struct btrfs_ioctl_same_args)
680 #define BTRFS_IOC_GET_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
681 struct btrfs_ioctl_feature_flags)
682 #define BTRFS_IOC_SET_FEATURES _IOW(BTRFS_IOCTL_MAGIC, 57, \
683 struct btrfs_ioctl_feature_flags[2])
684 #define BTRFS_IOC_GET_SUPPORTED_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
685 struct btrfs_ioctl_feature_flags[3])