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__
22 #include <asm/types.h>
23 #include <linux/ioctl.h>
30 #define BTRFS_IOCTL_MAGIC 0x94
31 #define BTRFS_VOL_NAME_MAX 255
33 /* this should be 4k */
34 #define BTRFS_PATH_NAME_MAX 4087
35 struct btrfs_ioctl_vol_args {
37 char name[BTRFS_PATH_NAME_MAX + 1];
40 #define BTRFS_DEVICE_PATH_NAME_MAX 1024
42 #define BTRFS_SUBVOL_CREATE_ASYNC (1ULL << 0)
43 #define BTRFS_SUBVOL_RDONLY (1ULL << 1)
44 #define BTRFS_SUBVOL_QGROUP_INHERIT (1ULL << 2)
45 #define BTRFS_FSID_SIZE 16
46 #define BTRFS_UUID_SIZE 16
48 #define BTRFS_QGROUP_INHERIT_SET_LIMITS (1ULL << 0)
50 struct btrfs_qgroup_limit {
58 struct btrfs_qgroup_inherit {
62 __u64 num_excl_copies;
63 struct btrfs_qgroup_limit lim;
67 struct btrfs_ioctl_qgroup_limit_args {
69 struct btrfs_qgroup_limit lim;
72 #define BTRFS_SUBVOL_NAME_MAX 4039
73 struct btrfs_ioctl_vol_args_v2 {
80 struct btrfs_qgroup_inherit *qgroup_inherit;
84 char name[BTRFS_SUBVOL_NAME_MAX + 1];
88 * structure to report errors and progress to userspace, either as a
89 * result of a finished scrub, a canceled scrub or a progress inquiry
91 struct btrfs_scrub_progress {
92 __u64 data_extents_scrubbed; /* # of data extents scrubbed */
93 __u64 tree_extents_scrubbed; /* # of tree extents scrubbed */
94 __u64 data_bytes_scrubbed; /* # of data bytes scrubbed */
95 __u64 tree_bytes_scrubbed; /* # of tree bytes scrubbed */
96 __u64 read_errors; /* # of read errors encountered (EIO) */
97 __u64 csum_errors; /* # of failed csum checks */
98 __u64 verify_errors; /* # of occurences, where the metadata
99 * of a tree block did not match the
100 * expected values, like generation or
102 __u64 no_csum; /* # of 4k data block for which no csum
103 * is present, probably the result of
104 * data written with nodatasum */
105 __u64 csum_discards; /* # of csum for which no data was found
106 * in the extent tree. */
107 __u64 super_errors; /* # of bad super blocks encountered */
108 __u64 malloc_errors; /* # of internal kmalloc errors. These
109 * will likely cause an incomplete
111 __u64 uncorrectable_errors; /* # of errors where either no intact
112 * copy was found or the writeback
114 __u64 corrected_errors; /* # of errors corrected */
115 __u64 last_physical; /* last physical address scrubbed. In
116 * case a scrub was aborted, this can
117 * be used to restart the scrub */
118 __u64 unverified_errors; /* # of occurences where a read for a
119 * full (64k) bio failed, but the re-
120 * check succeeded for each 4k piece.
121 * Intermittent error. */
124 #define BTRFS_SCRUB_READONLY 1
125 struct btrfs_ioctl_scrub_args {
126 __u64 devid; /* in */
127 __u64 start; /* in */
129 __u64 flags; /* in */
130 struct btrfs_scrub_progress progress; /* out */
132 __u64 unused[(1024-32-sizeof(struct btrfs_scrub_progress))/8];
135 #define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_ALWAYS 0
136 #define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_AVOID 1
137 struct btrfs_ioctl_dev_replace_start_params {
138 __u64 srcdevid; /* in, if 0, use srcdev_name instead */
139 __u64 cont_reading_from_srcdev_mode; /* in, see #define
141 __u8 srcdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1]; /* in */
142 __u8 tgtdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1]; /* in */
145 #define BTRFS_IOCTL_DEV_REPLACE_STATE_NEVER_STARTED 0
146 #define BTRFS_IOCTL_DEV_REPLACE_STATE_STARTED 1
147 #define BTRFS_IOCTL_DEV_REPLACE_STATE_FINISHED 2
148 #define BTRFS_IOCTL_DEV_REPLACE_STATE_CANCELED 3
149 #define BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED 4
150 struct btrfs_ioctl_dev_replace_status_params {
151 __u64 replace_state; /* out, see #define above */
152 __u64 progress_1000; /* out, 0 <= x <= 1000 */
153 __u64 time_started; /* out, seconds since 1-Jan-1970 */
154 __u64 time_stopped; /* out, seconds since 1-Jan-1970 */
155 __u64 num_write_errors; /* out */
156 __u64 num_uncorrectable_read_errors; /* out */
159 #define BTRFS_IOCTL_DEV_REPLACE_CMD_START 0
160 #define BTRFS_IOCTL_DEV_REPLACE_CMD_STATUS 1
161 #define BTRFS_IOCTL_DEV_REPLACE_CMD_CANCEL 2
162 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_RESULT -1
163 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR 0
164 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_NOT_STARTED 1
165 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_ALREADY_STARTED 2
166 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_SCRUB_INPROGRESS 3
167 struct btrfs_ioctl_dev_replace_args {
169 __u64 result; /* out */
172 struct btrfs_ioctl_dev_replace_start_params start;
173 struct btrfs_ioctl_dev_replace_status_params status;
179 struct btrfs_ioctl_dev_info_args {
180 __u64 devid; /* in/out */
181 __u8 uuid[BTRFS_UUID_SIZE]; /* in/out */
182 __u64 bytes_used; /* out */
183 __u64 total_bytes; /* out */
184 __u64 unused[379]; /* pad to 4k */
185 __u8 path[BTRFS_DEVICE_PATH_NAME_MAX]; /* out */
188 struct btrfs_ioctl_fs_info_args {
189 __u64 max_id; /* out */
190 __u64 num_devices; /* out */
191 __u8 fsid[BTRFS_FSID_SIZE]; /* out */
192 __u64 reserved[124]; /* pad to 1k */
195 /* balance control ioctl modes */
196 #define BTRFS_BALANCE_CTL_PAUSE 1
197 #define BTRFS_BALANCE_CTL_CANCEL 2
198 #define BTRFS_BALANCE_CTL_RESUME 3
201 * this is packed, because it should be exactly the same as its disk
202 * byte order counterpart (struct btrfs_disk_balance_args)
204 struct btrfs_balance_args {
217 __u64 limit; /* limit number of processed chunks */
219 } __attribute__ ((__packed__));
221 /* report balance progress to userspace */
222 struct btrfs_balance_progress {
223 __u64 expected; /* estimated # of chunks that will be
224 * relocated to fulfill the request */
225 __u64 considered; /* # of chunks we have considered so far */
226 __u64 completed; /* # of chunks relocated so far */
229 #define BTRFS_BALANCE_STATE_RUNNING (1ULL << 0)
230 #define BTRFS_BALANCE_STATE_PAUSE_REQ (1ULL << 1)
231 #define BTRFS_BALANCE_STATE_CANCEL_REQ (1ULL << 2)
233 struct btrfs_ioctl_balance_args {
234 __u64 flags; /* in/out */
235 __u64 state; /* out */
237 struct btrfs_balance_args data; /* in/out */
238 struct btrfs_balance_args meta; /* in/out */
239 struct btrfs_balance_args sys; /* in/out */
241 struct btrfs_balance_progress stat; /* out */
243 __u64 unused[72]; /* pad to 1k */
246 #define BTRFS_INO_LOOKUP_PATH_MAX 4080
247 struct btrfs_ioctl_ino_lookup_args {
250 char name[BTRFS_INO_LOOKUP_PATH_MAX];
253 struct btrfs_ioctl_search_key {
254 /* which root are we searching. 0 is the tree of tree roots */
257 /* keys returned will be >= min and <= max */
261 /* keys returned will be >= min and <= max */
265 /* max and min transids to search for */
269 /* keys returned will be >= min and <= max */
274 * how many items did userland ask for, and how many are we
279 /* align to 64 bits */
282 /* some extra for later */
289 struct btrfs_ioctl_search_header {
295 } __attribute__((may_alias));
297 #define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key))
299 * the buf is an array of search headers where
300 * each header is followed by the actual item
301 * the type field is expanded to 32 bits for alignment
303 struct btrfs_ioctl_search_args {
304 struct btrfs_ioctl_search_key key;
305 char buf[BTRFS_SEARCH_ARGS_BUFSIZE];
309 * Extended version of TREE_SEARCH ioctl that can return more than 4k of bytes.
310 * The allocated size of the buffer is set in buf_size.
312 struct btrfs_ioctl_search_args_v2 {
313 struct btrfs_ioctl_search_key key; /* in/out - search parameters */
314 __u64 buf_size; /* in - size of buffer
315 * out - on EOVERFLOW: needed size
317 __u64 buf[0]; /* out - found items */
320 /* With a @src_length of zero, the range from @src_offset->EOF is cloned! */
321 struct btrfs_ioctl_clone_range_args {
323 __u64 src_offset, src_length;
327 /* flags for the defrag range ioctl */
328 #define BTRFS_DEFRAG_RANGE_COMPRESS 1
329 #define BTRFS_DEFRAG_RANGE_START_IO 2
331 #define BTRFS_SAME_DATA_DIFFERS 1
332 /* For extent-same ioctl */
333 struct btrfs_ioctl_same_extent_info {
334 __s64 fd; /* in - destination file */
335 __u64 logical_offset; /* in - start of extent in destination */
336 __u64 bytes_deduped; /* out - total # of bytes we were able
337 * to dedupe from this file */
338 /* status of this dedupe operation:
339 * 0 if dedup succeeds
341 * == BTRFS_SAME_DATA_DIFFERS if data differs
343 __s32 status; /* out - see above description */
347 struct btrfs_ioctl_same_args {
348 __u64 logical_offset; /* in - start of extent in source */
349 __u64 length; /* in - length of extent */
350 __u16 dest_count; /* in - total elements in info array */
353 struct btrfs_ioctl_same_extent_info info[0];
356 struct btrfs_ioctl_defrag_range_args {
357 /* start of the defrag operation */
360 /* number of bytes to defrag, use (u64)-1 to say all */
364 * flags for the operation, which can include turning
365 * on compression for this one defrag
370 * any extent bigger than this will be considered
371 * already defragged. Use 0 to take the kernel default
372 * Use 1 to say every single extent must be rewritten
377 * which compression method to use if turning on compression
378 * for this defrag operation. If unspecified, zlib will
383 /* spare for later */
387 struct btrfs_ioctl_space_info {
393 struct btrfs_ioctl_space_args {
396 struct btrfs_ioctl_space_info spaces[0];
399 struct btrfs_data_container {
400 __u32 bytes_left; /* out -- bytes not needed to deliver output */
401 __u32 bytes_missing; /* out -- additional bytes needed for result */
402 __u32 elem_cnt; /* out */
403 __u32 elem_missed; /* out */
404 __u64 val[0]; /* out */
407 struct btrfs_ioctl_ino_path_args {
411 /* struct btrfs_data_container *fspath; out */
412 __u64 fspath; /* out */
415 struct btrfs_ioctl_logical_ino_args {
416 __u64 logical; /* in */
419 /* struct btrfs_data_container *inodes; out */
423 enum btrfs_dev_stat_values {
424 /* disk I/O failure stats */
425 BTRFS_DEV_STAT_WRITE_ERRS, /* EIO or EREMOTEIO from lower layers */
426 BTRFS_DEV_STAT_READ_ERRS, /* EIO or EREMOTEIO from lower layers */
427 BTRFS_DEV_STAT_FLUSH_ERRS, /* EIO or EREMOTEIO from lower layers */
429 /* stats for indirect indications for I/O failures */
430 BTRFS_DEV_STAT_CORRUPTION_ERRS, /* checksum error, bytenr error or
431 * contents is illegal: this is an
432 * indication that the block was damaged
433 * during read or write, or written to
434 * wrong location or read from wrong
436 BTRFS_DEV_STAT_GENERATION_ERRS, /* an indication that blocks have not
439 BTRFS_DEV_STAT_VALUES_MAX
442 /* Reset statistics after reading; needs SYS_ADMIN capability */
443 #define BTRFS_DEV_STATS_RESET (1ULL << 0)
445 struct btrfs_ioctl_get_dev_stats {
446 __u64 devid; /* in */
447 __u64 nr_items; /* in/out */
448 __u64 flags; /* in/out */
451 __u64 values[BTRFS_DEV_STAT_VALUES_MAX];
453 __u64 unused[128 - 2 - BTRFS_DEV_STAT_VALUES_MAX]; /* pad to 1k */
456 /* BTRFS_IOC_SNAP_CREATE is no longer used by the btrfs command */
457 #define BTRFS_QUOTA_CTL_ENABLE 1
458 #define BTRFS_QUOTA_CTL_DISABLE 2
459 /* 3 has formerly been reserved for BTRFS_QUOTA_CTL_RESCAN */
460 struct btrfs_ioctl_quota_ctl_args {
465 struct btrfs_ioctl_quota_rescan_args {
471 struct btrfs_ioctl_qgroup_assign_args {
477 struct btrfs_ioctl_qgroup_create_args {
481 struct btrfs_ioctl_timespec {
486 struct btrfs_ioctl_received_subvol_args {
487 char uuid[BTRFS_UUID_SIZE]; /* in */
488 __u64 stransid; /* in */
489 __u64 rtransid; /* out */
490 struct btrfs_ioctl_timespec stime; /* in */
491 struct btrfs_ioctl_timespec rtime; /* out */
492 __u64 flags; /* in */
493 __u64 reserved[16]; /* in */
497 * Caller doesn't want file data in the send stream, even if the
498 * search of clone sources doesn't find an extent. UPDATE_EXTENT
499 * commands will be sent instead of WRITE commands.
501 #define BTRFS_SEND_FLAG_NO_FILE_DATA 0x1
504 * Do not add the leading stream header. Used when multiple snapshots
505 * are sent back to back.
507 #define BTRFS_SEND_FLAG_OMIT_STREAM_HEADER 0x2
510 * Omit the command at the end of the stream that indicated the end
511 * of the stream. This option is used when multiple snapshots are
514 #define BTRFS_SEND_FLAG_OMIT_END_CMD 0x4
516 #define BTRFS_SEND_FLAG_MASK \
517 (BTRFS_SEND_FLAG_NO_FILE_DATA | \
518 BTRFS_SEND_FLAG_OMIT_STREAM_HEADER | \
519 BTRFS_SEND_FLAG_OMIT_END_CMD)
521 struct btrfs_ioctl_send_args {
522 __s64 send_fd; /* in */
523 __u64 clone_sources_count; /* in */
524 __u64 *clone_sources; /* in */
525 __u64 parent_root; /* in */
526 __u64 flags; /* in */
527 __u64 reserved[4]; /* in */
530 /* Error codes as returned by the kernel */
531 enum btrfs_err_code {
533 BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET,
534 BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET,
535 BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET,
536 BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET,
537 BTRFS_ERROR_DEV_TGT_REPLACE,
538 BTRFS_ERROR_DEV_MISSING_NOT_FOUND,
539 BTRFS_ERROR_DEV_ONLY_WRITABLE,
540 BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS
543 /* An error code to error string mapping for the kernel
546 static inline char *btrfs_err_str(enum btrfs_err_code err_code)
549 case BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET:
550 return "unable to go below two devices on raid1";
551 case BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET:
552 return "unable to go below four devices on raid10";
553 case BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET:
554 return "unable to go below two devices on raid5";
555 case BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET:
556 return "unable to go below three devices on raid6";
557 case BTRFS_ERROR_DEV_TGT_REPLACE:
558 return "unable to remove the dev_replace target dev";
559 case BTRFS_ERROR_DEV_MISSING_NOT_FOUND:
560 return "no missing devices found to remove";
561 case BTRFS_ERROR_DEV_ONLY_WRITABLE:
562 return "unable to remove the only writeable device";
563 case BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS:
564 return "add/delete/balance/replace/resize operation "
571 #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
572 struct btrfs_ioctl_vol_args)
573 #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
574 struct btrfs_ioctl_vol_args)
575 #define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
576 struct btrfs_ioctl_vol_args)
577 #define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
578 struct btrfs_ioctl_vol_args)
579 /* trans start and trans end are dangerous, and only for
580 * use by applications that know how to avoid the
581 * resulting deadlocks
583 #define BTRFS_IOC_TRANS_START _IO(BTRFS_IOCTL_MAGIC, 6)
584 #define BTRFS_IOC_TRANS_END _IO(BTRFS_IOCTL_MAGIC, 7)
585 #define BTRFS_IOC_SYNC _IO(BTRFS_IOCTL_MAGIC, 8)
587 #define BTRFS_IOC_CLONE _IOW(BTRFS_IOCTL_MAGIC, 9, int)
588 #define BTRFS_IOC_ADD_DEV _IOW(BTRFS_IOCTL_MAGIC, 10, \
589 struct btrfs_ioctl_vol_args)
590 #define BTRFS_IOC_RM_DEV _IOW(BTRFS_IOCTL_MAGIC, 11, \
591 struct btrfs_ioctl_vol_args)
592 #define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \
593 struct btrfs_ioctl_vol_args)
595 #define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
596 struct btrfs_ioctl_clone_range_args)
598 #define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
599 struct btrfs_ioctl_vol_args)
600 #define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \
601 struct btrfs_ioctl_vol_args)
602 #define BTRFS_IOC_DEFRAG_RANGE _IOW(BTRFS_IOCTL_MAGIC, 16, \
603 struct btrfs_ioctl_defrag_range_args)
604 #define BTRFS_IOC_TREE_SEARCH _IOWR(BTRFS_IOCTL_MAGIC, 17, \
605 struct btrfs_ioctl_search_args)
606 #define BTRFS_IOC_TREE_SEARCH_V2 _IOWR(BTRFS_IOCTL_MAGIC, 17, \
607 struct btrfs_ioctl_search_args_v2)
608 #define BTRFS_IOC_INO_LOOKUP _IOWR(BTRFS_IOCTL_MAGIC, 18, \
609 struct btrfs_ioctl_ino_lookup_args)
610 #define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, __u64)
611 #define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, \
612 struct btrfs_ioctl_space_args)
613 #define BTRFS_IOC_START_SYNC _IOR(BTRFS_IOCTL_MAGIC, 24, __u64)
614 #define BTRFS_IOC_WAIT_SYNC _IOW(BTRFS_IOCTL_MAGIC, 22, __u64)
615 #define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \
616 struct btrfs_ioctl_vol_args_v2)
617 #define BTRFS_IOC_SUBVOL_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 24, \
618 struct btrfs_ioctl_vol_args_v2)
619 #define BTRFS_IOC_SUBVOL_GETFLAGS _IOR(BTRFS_IOCTL_MAGIC, 25, __u64)
620 #define BTRFS_IOC_SUBVOL_SETFLAGS _IOW(BTRFS_IOCTL_MAGIC, 26, __u64)
621 #define BTRFS_IOC_SCRUB _IOWR(BTRFS_IOCTL_MAGIC, 27, \
622 struct btrfs_ioctl_scrub_args)
623 #define BTRFS_IOC_SCRUB_CANCEL _IO(BTRFS_IOCTL_MAGIC, 28)
624 #define BTRFS_IOC_SCRUB_PROGRESS _IOWR(BTRFS_IOCTL_MAGIC, 29, \
625 struct btrfs_ioctl_scrub_args)
626 #define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
627 struct btrfs_ioctl_dev_info_args)
628 #define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
629 struct btrfs_ioctl_fs_info_args)
630 #define BTRFS_IOC_BALANCE_V2 _IOWR(BTRFS_IOCTL_MAGIC, 32, \
631 struct btrfs_ioctl_balance_args)
632 #define BTRFS_IOC_BALANCE_CTL _IOW(BTRFS_IOCTL_MAGIC, 33, int)
633 #define BTRFS_IOC_BALANCE_PROGRESS _IOR(BTRFS_IOCTL_MAGIC, 34, \
634 struct btrfs_ioctl_balance_args)
635 #define BTRFS_IOC_INO_PATHS _IOWR(BTRFS_IOCTL_MAGIC, 35, \
636 struct btrfs_ioctl_ino_path_args)
637 #define BTRFS_IOC_LOGICAL_INO _IOWR(BTRFS_IOCTL_MAGIC, 36, \
638 struct btrfs_ioctl_ino_path_args)
639 #define BTRFS_IOC_SET_RECEIVED_SUBVOL _IOWR(BTRFS_IOCTL_MAGIC, 37, \
640 struct btrfs_ioctl_received_subvol_args)
641 #define BTRFS_IOC_SEND _IOW(BTRFS_IOCTL_MAGIC, 38, struct btrfs_ioctl_send_args)
642 #define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, \
643 struct btrfs_ioctl_vol_args)
644 #define BTRFS_IOC_QUOTA_CTL _IOWR(BTRFS_IOCTL_MAGIC, 40, \
645 struct btrfs_ioctl_quota_ctl_args)
646 #define BTRFS_IOC_QGROUP_ASSIGN _IOW(BTRFS_IOCTL_MAGIC, 41, \
647 struct btrfs_ioctl_qgroup_assign_args)
648 #define BTRFS_IOC_QGROUP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 42, \
649 struct btrfs_ioctl_qgroup_create_args)
650 #define BTRFS_IOC_QGROUP_LIMIT _IOR(BTRFS_IOCTL_MAGIC, 43, \
651 struct btrfs_ioctl_qgroup_limit_args)
652 #define BTRFS_IOC_QUOTA_RESCAN _IOW(BTRFS_IOCTL_MAGIC, 44, \
653 struct btrfs_ioctl_quota_rescan_args)
654 #define BTRFS_IOC_QUOTA_RESCAN_STATUS _IOR(BTRFS_IOCTL_MAGIC, 45, \
655 struct btrfs_ioctl_quota_rescan_args)
656 #define BTRFS_IOC_QUOTA_RESCAN_WAIT _IO(BTRFS_IOCTL_MAGIC, 46)
657 #define BTRFS_IOC_GET_FSLABEL _IOR(BTRFS_IOCTL_MAGIC, 49, \
658 char[BTRFS_LABEL_SIZE])
659 #define BTRFS_IOC_SET_FSLABEL _IOW(BTRFS_IOCTL_MAGIC, 50, \
660 char[BTRFS_LABEL_SIZE])
661 #define BTRFS_IOC_GET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 52, \
662 struct btrfs_ioctl_get_dev_stats)
663 #define BTRFS_IOC_DEV_REPLACE _IOWR(BTRFS_IOCTL_MAGIC, 53, \
664 struct btrfs_ioctl_dev_replace_args)
665 #define BTRFS_IOC_FILE_EXTENT_SAME _IOWR(BTRFS_IOCTL_MAGIC, 54, \
666 struct btrfs_ioctl_same_args)
667 #define BTRFS_IOC_GET_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
668 struct btrfs_ioctl_feature_flags)
669 #define BTRFS_IOC_SET_FEATURES _IOW(BTRFS_IOCTL_MAGIC, 57, \
670 struct btrfs_ioctl_feature_flags[2])
671 #define BTRFS_IOC_GET_SUPPORTED_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
672 struct btrfs_ioctl_feature_flags[3])