/**************************************************************************** **************************************************************************** *** *** This header was automatically generated from a Linux kernel header *** of the same name, to make information necessary for userspace to *** call into the kernel available to libc. It contains only constants, *** structures, and macros generated from the original header, and thus, *** contains no copyrightable information. *** *** To edit the content of this header, modify the corresponding *** source file (e.g. under external/kernel-headers/original/) then *** run bionic/libc/kernel/tools/update_all.py *** *** Any manual change here will be lost the next time this script will *** be run. You've been warned! *** **************************************************************************** ****************************************************************************/ #ifndef _UAPI_LINUX_BTRFS_H #define _UAPI_LINUX_BTRFS_H #include #include #define BTRFS_IOCTL_MAGIC 0x94 #define BTRFS_VOL_NAME_MAX 255 #define BTRFS_LABEL_SIZE 256 #define BTRFS_PATH_NAME_MAX 4087 struct btrfs_ioctl_vol_args { __s64 fd; char name[BTRFS_PATH_NAME_MAX + 1]; }; #define BTRFS_DEVICE_PATH_NAME_MAX 1024 #define BTRFS_DEVICE_SPEC_BY_ID (1ULL << 3) #define BTRFS_VOL_ARG_V2_FLAGS_SUPPORTED (BTRFS_SUBVOL_CREATE_ASYNC | BTRFS_SUBVOL_RDONLY | BTRFS_SUBVOL_QGROUP_INHERIT | BTRFS_DEVICE_SPEC_BY_ID) #define BTRFS_FSID_SIZE 16 #define BTRFS_UUID_SIZE 16 #define BTRFS_UUID_UNPARSED_SIZE 37 #define BTRFS_QGROUP_LIMIT_MAX_RFER (1ULL << 0) #define BTRFS_QGROUP_LIMIT_MAX_EXCL (1ULL << 1) #define BTRFS_QGROUP_LIMIT_RSV_RFER (1ULL << 2) #define BTRFS_QGROUP_LIMIT_RSV_EXCL (1ULL << 3) #define BTRFS_QGROUP_LIMIT_RFER_CMPR (1ULL << 4) #define BTRFS_QGROUP_LIMIT_EXCL_CMPR (1ULL << 5) struct btrfs_qgroup_limit { __u64 flags; __u64 max_rfer; __u64 max_excl; __u64 rsv_rfer; __u64 rsv_excl; }; #define BTRFS_QGROUP_INHERIT_SET_LIMITS (1ULL << 0) struct btrfs_qgroup_inherit { __u64 flags; __u64 num_qgroups; __u64 num_ref_copies; __u64 num_excl_copies; struct btrfs_qgroup_limit lim; __u64 qgroups[0]; }; struct btrfs_ioctl_qgroup_limit_args { __u64 qgroupid; struct btrfs_qgroup_limit lim; }; #define BTRFS_SUBVOL_CREATE_ASYNC (1ULL << 0) #define BTRFS_SUBVOL_RDONLY (1ULL << 1) #define BTRFS_SUBVOL_QGROUP_INHERIT (1ULL << 2) #define BTRFS_SUBVOL_NAME_MAX 4039 struct btrfs_ioctl_vol_args_v2 { __s64 fd; __u64 transid; __u64 flags; union { struct { __u64 size; struct btrfs_qgroup_inherit __user * qgroup_inherit; }; __u64 unused[4]; }; union { char name[BTRFS_SUBVOL_NAME_MAX + 1]; __u64 devid; }; }; struct btrfs_scrub_progress { __u64 data_extents_scrubbed; __u64 tree_extents_scrubbed; __u64 data_bytes_scrubbed; __u64 tree_bytes_scrubbed; __u64 read_errors; __u64 csum_errors; __u64 verify_errors; __u64 no_csum; __u64 csum_discards; __u64 super_errors; __u64 malloc_errors; __u64 uncorrectable_errors; __u64 corrected_errors; __u64 last_physical; __u64 unverified_errors; }; #define BTRFS_SCRUB_READONLY 1 struct btrfs_ioctl_scrub_args { __u64 devid; __u64 start; __u64 end; __u64 flags; struct btrfs_scrub_progress progress; __u64 unused[(1024 - 32 - sizeof(struct btrfs_scrub_progress)) / 8]; }; #define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_ALWAYS 0 #define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_AVOID 1 struct btrfs_ioctl_dev_replace_start_params { __u64 srcdevid; __u64 cont_reading_from_srcdev_mode; __u8 srcdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1]; __u8 tgtdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1]; }; #define BTRFS_IOCTL_DEV_REPLACE_STATE_NEVER_STARTED 0 #define BTRFS_IOCTL_DEV_REPLACE_STATE_STARTED 1 #define BTRFS_IOCTL_DEV_REPLACE_STATE_FINISHED 2 #define BTRFS_IOCTL_DEV_REPLACE_STATE_CANCELED 3 #define BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED 4 struct btrfs_ioctl_dev_replace_status_params { __u64 replace_state; __u64 progress_1000; __u64 time_started; __u64 time_stopped; __u64 num_write_errors; __u64 num_uncorrectable_read_errors; }; #define BTRFS_IOCTL_DEV_REPLACE_CMD_START 0 #define BTRFS_IOCTL_DEV_REPLACE_CMD_STATUS 1 #define BTRFS_IOCTL_DEV_REPLACE_CMD_CANCEL 2 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR 0 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_NOT_STARTED 1 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_ALREADY_STARTED 2 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_SCRUB_INPROGRESS 3 struct btrfs_ioctl_dev_replace_args { __u64 cmd; __u64 result; union { struct btrfs_ioctl_dev_replace_start_params start; struct btrfs_ioctl_dev_replace_status_params status; }; __u64 spare[64]; }; struct btrfs_ioctl_dev_info_args { __u64 devid; __u8 uuid[BTRFS_UUID_SIZE]; __u64 bytes_used; __u64 total_bytes; __u64 unused[379]; __u8 path[BTRFS_DEVICE_PATH_NAME_MAX]; }; struct btrfs_ioctl_fs_info_args { __u64 max_id; __u64 num_devices; __u8 fsid[BTRFS_FSID_SIZE]; __u32 nodesize; __u32 sectorsize; __u32 clone_alignment; __u32 reserved32; __u64 reserved[122]; }; #define BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE (1ULL << 0) #define BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE_VALID (1ULL << 1) #define BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF (1ULL << 0) #define BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL (1ULL << 1) #define BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS (1ULL << 2) #define BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO (1ULL << 3) #define BTRFS_FEATURE_INCOMPAT_COMPRESS_LZOv2 (1ULL << 4) #define BTRFS_FEATURE_INCOMPAT_BIG_METADATA (1ULL << 5) #define BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF (1ULL << 6) #define BTRFS_FEATURE_INCOMPAT_RAID56 (1ULL << 7) #define BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA (1ULL << 8) #define BTRFS_FEATURE_INCOMPAT_NO_HOLES (1ULL << 9) struct btrfs_ioctl_feature_flags { __u64 compat_flags; __u64 compat_ro_flags; __u64 incompat_flags; }; #define BTRFS_BALANCE_CTL_PAUSE 1 #define BTRFS_BALANCE_CTL_CANCEL 2 struct btrfs_balance_args { __u64 profiles; union { __u64 usage; struct { __u32 usage_min; __u32 usage_max; }; }; __u64 devid; __u64 pstart; __u64 pend; __u64 vstart; __u64 vend; __u64 target; __u64 flags; union { __u64 limit; struct { __u32 limit_min; __u32 limit_max; }; }; __u32 stripes_min; __u32 stripes_max; __u64 unused[6]; } __attribute__((__packed__)); struct btrfs_balance_progress { __u64 expected; __u64 considered; __u64 completed; }; #define BTRFS_BALANCE_DATA (1ULL << 0) #define BTRFS_BALANCE_SYSTEM (1ULL << 1) #define BTRFS_BALANCE_METADATA (1ULL << 2) #define BTRFS_BALANCE_TYPE_MASK (BTRFS_BALANCE_DATA | BTRFS_BALANCE_SYSTEM | BTRFS_BALANCE_METADATA) #define BTRFS_BALANCE_FORCE (1ULL << 3) #define BTRFS_BALANCE_RESUME (1ULL << 4) #define BTRFS_BALANCE_ARGS_PROFILES (1ULL << 0) #define BTRFS_BALANCE_ARGS_USAGE (1ULL << 1) #define BTRFS_BALANCE_ARGS_DEVID (1ULL << 2) #define BTRFS_BALANCE_ARGS_DRANGE (1ULL << 3) #define BTRFS_BALANCE_ARGS_VRANGE (1ULL << 4) #define BTRFS_BALANCE_ARGS_LIMIT (1ULL << 5) #define BTRFS_BALANCE_ARGS_LIMIT_RANGE (1ULL << 6) #define BTRFS_BALANCE_ARGS_STRIPES_RANGE (1ULL << 7) #define BTRFS_BALANCE_ARGS_USAGE_RANGE (1ULL << 10) #define BTRFS_BALANCE_ARGS_MASK (BTRFS_BALANCE_ARGS_PROFILES | BTRFS_BALANCE_ARGS_USAGE | BTRFS_BALANCE_ARGS_DEVID | BTRFS_BALANCE_ARGS_DRANGE | BTRFS_BALANCE_ARGS_VRANGE | BTRFS_BALANCE_ARGS_LIMIT | BTRFS_BALANCE_ARGS_LIMIT_RANGE | BTRFS_BALANCE_ARGS_STRIPES_RANGE | BTRFS_BALANCE_ARGS_USAGE_RANGE) #define BTRFS_BALANCE_ARGS_CONVERT (1ULL << 8) #define BTRFS_BALANCE_ARGS_SOFT (1ULL << 9) #define BTRFS_BALANCE_STATE_RUNNING (1ULL << 0) #define BTRFS_BALANCE_STATE_PAUSE_REQ (1ULL << 1) #define BTRFS_BALANCE_STATE_CANCEL_REQ (1ULL << 2) struct btrfs_ioctl_balance_args { __u64 flags; __u64 state; struct btrfs_balance_args data; struct btrfs_balance_args meta; struct btrfs_balance_args sys; struct btrfs_balance_progress stat; __u64 unused[72]; }; #define BTRFS_INO_LOOKUP_PATH_MAX 4080 struct btrfs_ioctl_ino_lookup_args { __u64 treeid; __u64 objectid; char name[BTRFS_INO_LOOKUP_PATH_MAX]; }; struct btrfs_ioctl_search_key { __u64 tree_id; __u64 min_objectid; __u64 max_objectid; __u64 min_offset; __u64 max_offset; __u64 min_transid; __u64 max_transid; __u32 min_type; __u32 max_type; __u32 nr_items; __u32 unused; __u64 unused1; __u64 unused2; __u64 unused3; __u64 unused4; }; struct btrfs_ioctl_search_header { __u64 transid; __u64 objectid; __u64 offset; __u32 type; __u32 len; }; #define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key)) struct btrfs_ioctl_search_args { struct btrfs_ioctl_search_key key; char buf[BTRFS_SEARCH_ARGS_BUFSIZE]; }; struct btrfs_ioctl_search_args_v2 { struct btrfs_ioctl_search_key key; __u64 buf_size; __u64 buf[0]; }; struct btrfs_ioctl_clone_range_args { __s64 src_fd; __u64 src_offset, src_length; __u64 dest_offset; }; #define BTRFS_DEFRAG_RANGE_COMPRESS 1 #define BTRFS_DEFRAG_RANGE_START_IO 2 struct btrfs_ioctl_defrag_range_args { __u64 start; __u64 len; __u64 flags; __u32 extent_thresh; __u32 compress_type; __u32 unused[4]; }; #define BTRFS_SAME_DATA_DIFFERS 1 struct btrfs_ioctl_same_extent_info { __s64 fd; __u64 logical_offset; __u64 bytes_deduped; __s32 status; __u32 reserved; }; struct btrfs_ioctl_same_args { __u64 logical_offset; __u64 length; __u16 dest_count; __u16 reserved1; __u32 reserved2; struct btrfs_ioctl_same_extent_info info[0]; }; struct btrfs_ioctl_space_info { __u64 flags; __u64 total_bytes; __u64 used_bytes; }; struct btrfs_ioctl_space_args { __u64 space_slots; __u64 total_spaces; struct btrfs_ioctl_space_info spaces[0]; }; struct btrfs_data_container { __u32 bytes_left; __u32 bytes_missing; __u32 elem_cnt; __u32 elem_missed; __u64 val[0]; }; struct btrfs_ioctl_ino_path_args { __u64 inum; __u64 size; __u64 reserved[4]; __u64 fspath; }; struct btrfs_ioctl_logical_ino_args { __u64 logical; __u64 size; __u64 reserved[4]; __u64 inodes; }; enum btrfs_dev_stat_values { BTRFS_DEV_STAT_WRITE_ERRS, BTRFS_DEV_STAT_READ_ERRS, BTRFS_DEV_STAT_FLUSH_ERRS, BTRFS_DEV_STAT_CORRUPTION_ERRS, BTRFS_DEV_STAT_GENERATION_ERRS, BTRFS_DEV_STAT_VALUES_MAX }; #define BTRFS_DEV_STATS_RESET (1ULL << 0) struct btrfs_ioctl_get_dev_stats { __u64 devid; __u64 nr_items; __u64 flags; __u64 values[BTRFS_DEV_STAT_VALUES_MAX]; __u64 unused[128 - 2 - BTRFS_DEV_STAT_VALUES_MAX]; }; #define BTRFS_QUOTA_CTL_ENABLE 1 #define BTRFS_QUOTA_CTL_DISABLE 2 #define BTRFS_QUOTA_CTL_RESCAN__NOTUSED 3 struct btrfs_ioctl_quota_ctl_args { __u64 cmd; __u64 status; }; struct btrfs_ioctl_quota_rescan_args { __u64 flags; __u64 progress; __u64 reserved[6]; }; struct btrfs_ioctl_qgroup_assign_args { __u64 assign; __u64 src; __u64 dst; }; struct btrfs_ioctl_qgroup_create_args { __u64 create; __u64 qgroupid; }; struct btrfs_ioctl_timespec { __u64 sec; __u32 nsec; }; struct btrfs_ioctl_received_subvol_args { char uuid[BTRFS_UUID_SIZE]; __u64 stransid; __u64 rtransid; struct btrfs_ioctl_timespec stime; struct btrfs_ioctl_timespec rtime; __u64 flags; __u64 reserved[16]; }; #define BTRFS_SEND_FLAG_NO_FILE_DATA 0x1 #define BTRFS_SEND_FLAG_OMIT_STREAM_HEADER 0x2 #define BTRFS_SEND_FLAG_OMIT_END_CMD 0x4 #define BTRFS_SEND_FLAG_MASK (BTRFS_SEND_FLAG_NO_FILE_DATA | BTRFS_SEND_FLAG_OMIT_STREAM_HEADER | BTRFS_SEND_FLAG_OMIT_END_CMD) struct btrfs_ioctl_send_args { __s64 send_fd; __u64 clone_sources_count; __u64 __user * clone_sources; __u64 parent_root; __u64 flags; __u64 reserved[4]; }; enum btrfs_err_code { BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET = 1, BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET, BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET, BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET, BTRFS_ERROR_DEV_TGT_REPLACE, BTRFS_ERROR_DEV_MISSING_NOT_FOUND, BTRFS_ERROR_DEV_ONLY_WRITABLE, BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS }; #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, struct btrfs_ioctl_vol_args) #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, struct btrfs_ioctl_vol_args) #define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, struct btrfs_ioctl_vol_args) #define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, struct btrfs_ioctl_vol_args) #define BTRFS_IOC_TRANS_START _IO(BTRFS_IOCTL_MAGIC, 6) #define BTRFS_IOC_TRANS_END _IO(BTRFS_IOCTL_MAGIC, 7) #define BTRFS_IOC_SYNC _IO(BTRFS_IOCTL_MAGIC, 8) #define BTRFS_IOC_CLONE _IOW(BTRFS_IOCTL_MAGIC, 9, int) #define BTRFS_IOC_ADD_DEV _IOW(BTRFS_IOCTL_MAGIC, 10, struct btrfs_ioctl_vol_args) #define BTRFS_IOC_RM_DEV _IOW(BTRFS_IOCTL_MAGIC, 11, struct btrfs_ioctl_vol_args) #define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, struct btrfs_ioctl_vol_args) #define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, struct btrfs_ioctl_clone_range_args) #define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, struct btrfs_ioctl_vol_args) #define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, struct btrfs_ioctl_vol_args) #define BTRFS_IOC_DEFRAG_RANGE _IOW(BTRFS_IOCTL_MAGIC, 16, struct btrfs_ioctl_defrag_range_args) #define BTRFS_IOC_TREE_SEARCH _IOWR(BTRFS_IOCTL_MAGIC, 17, struct btrfs_ioctl_search_args) #define BTRFS_IOC_TREE_SEARCH_V2 _IOWR(BTRFS_IOCTL_MAGIC, 17, struct btrfs_ioctl_search_args_v2) #define BTRFS_IOC_INO_LOOKUP _IOWR(BTRFS_IOCTL_MAGIC, 18, struct btrfs_ioctl_ino_lookup_args) #define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, __u64) #define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, struct btrfs_ioctl_space_args) #define BTRFS_IOC_START_SYNC _IOR(BTRFS_IOCTL_MAGIC, 24, __u64) #define BTRFS_IOC_WAIT_SYNC _IOW(BTRFS_IOCTL_MAGIC, 22, __u64) #define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, struct btrfs_ioctl_vol_args_v2) #define BTRFS_IOC_SUBVOL_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 24, struct btrfs_ioctl_vol_args_v2) #define BTRFS_IOC_SUBVOL_GETFLAGS _IOR(BTRFS_IOCTL_MAGIC, 25, __u64) #define BTRFS_IOC_SUBVOL_SETFLAGS _IOW(BTRFS_IOCTL_MAGIC, 26, __u64) #define BTRFS_IOC_SCRUB _IOWR(BTRFS_IOCTL_MAGIC, 27, struct btrfs_ioctl_scrub_args) #define BTRFS_IOC_SCRUB_CANCEL _IO(BTRFS_IOCTL_MAGIC, 28) #define BTRFS_IOC_SCRUB_PROGRESS _IOWR(BTRFS_IOCTL_MAGIC, 29, struct btrfs_ioctl_scrub_args) #define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, struct btrfs_ioctl_dev_info_args) #define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, struct btrfs_ioctl_fs_info_args) #define BTRFS_IOC_BALANCE_V2 _IOWR(BTRFS_IOCTL_MAGIC, 32, struct btrfs_ioctl_balance_args) #define BTRFS_IOC_BALANCE_CTL _IOW(BTRFS_IOCTL_MAGIC, 33, int) #define BTRFS_IOC_BALANCE_PROGRESS _IOR(BTRFS_IOCTL_MAGIC, 34, struct btrfs_ioctl_balance_args) #define BTRFS_IOC_INO_PATHS _IOWR(BTRFS_IOCTL_MAGIC, 35, struct btrfs_ioctl_ino_path_args) #define BTRFS_IOC_LOGICAL_INO _IOWR(BTRFS_IOCTL_MAGIC, 36, struct btrfs_ioctl_logical_ino_args) #define BTRFS_IOC_SET_RECEIVED_SUBVOL _IOWR(BTRFS_IOCTL_MAGIC, 37, struct btrfs_ioctl_received_subvol_args) #define BTRFS_IOC_SEND _IOW(BTRFS_IOCTL_MAGIC, 38, struct btrfs_ioctl_send_args) #define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, struct btrfs_ioctl_vol_args) #define BTRFS_IOC_QUOTA_CTL _IOWR(BTRFS_IOCTL_MAGIC, 40, struct btrfs_ioctl_quota_ctl_args) #define BTRFS_IOC_QGROUP_ASSIGN _IOW(BTRFS_IOCTL_MAGIC, 41, struct btrfs_ioctl_qgroup_assign_args) #define BTRFS_IOC_QGROUP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 42, struct btrfs_ioctl_qgroup_create_args) #define BTRFS_IOC_QGROUP_LIMIT _IOR(BTRFS_IOCTL_MAGIC, 43, struct btrfs_ioctl_qgroup_limit_args) #define BTRFS_IOC_QUOTA_RESCAN _IOW(BTRFS_IOCTL_MAGIC, 44, struct btrfs_ioctl_quota_rescan_args) #define BTRFS_IOC_QUOTA_RESCAN_STATUS _IOR(BTRFS_IOCTL_MAGIC, 45, struct btrfs_ioctl_quota_rescan_args) #define BTRFS_IOC_QUOTA_RESCAN_WAIT _IO(BTRFS_IOCTL_MAGIC, 46) #define BTRFS_IOC_GET_FSLABEL _IOR(BTRFS_IOCTL_MAGIC, 49, char[BTRFS_LABEL_SIZE]) #define BTRFS_IOC_SET_FSLABEL _IOW(BTRFS_IOCTL_MAGIC, 50, char[BTRFS_LABEL_SIZE]) #define BTRFS_IOC_GET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 52, struct btrfs_ioctl_get_dev_stats) #define BTRFS_IOC_DEV_REPLACE _IOWR(BTRFS_IOCTL_MAGIC, 53, struct btrfs_ioctl_dev_replace_args) #define BTRFS_IOC_FILE_EXTENT_SAME _IOWR(BTRFS_IOCTL_MAGIC, 54, struct btrfs_ioctl_same_args) #define BTRFS_IOC_GET_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, struct btrfs_ioctl_feature_flags) #define BTRFS_IOC_SET_FEATURES _IOW(BTRFS_IOCTL_MAGIC, 57, struct btrfs_ioctl_feature_flags[2]) #define BTRFS_IOC_GET_SUPPORTED_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, struct btrfs_ioctl_feature_flags[3]) #define BTRFS_IOC_RM_DEV_V2 _IOW(BTRFS_IOCTL_MAGIC, 58, struct btrfs_ioctl_vol_args_v2) #endif