| /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| /* |
| * Copyright (C) 2007 Oracle. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public |
| * License v2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public |
| * License along with this program; if not, write to the |
| * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| * Boston, MA 021110-1307, USA. |
| */ |
| |
| #ifndef _UAPI_LINUX_BTRFS_H |
| #define _UAPI_LINUX_BTRFS_H |
| #include <linux/types.h> |
| #include <linux/ioctl.h> |
| |
| #define BTRFS_IOCTL_MAGIC 0x94 |
| #define BTRFS_VOL_NAME_MAX 255 |
| #define BTRFS_LABEL_SIZE 256 |
| |
| /* this should be 4k */ |
| #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_SUBVOL_NAME_MAX 4039 |
| |
| #ifndef __KERNEL__ |
| /* Deprecated since 5.7 */ |
| # define BTRFS_SUBVOL_CREATE_ASYNC (1ULL << 0) |
| #endif |
| #define BTRFS_SUBVOL_RDONLY (1ULL << 1) |
| #define BTRFS_SUBVOL_QGROUP_INHERIT (1ULL << 2) |
| |
| #define BTRFS_DEVICE_SPEC_BY_ID (1ULL << 3) |
| |
| #define BTRFS_SUBVOL_SPEC_BY_ID (1ULL << 4) |
| |
| #define BTRFS_VOL_ARG_V2_FLAGS_SUPPORTED \ |
| (BTRFS_SUBVOL_RDONLY | \ |
| BTRFS_SUBVOL_QGROUP_INHERIT | \ |
| BTRFS_DEVICE_SPEC_BY_ID | \ |
| BTRFS_SUBVOL_SPEC_BY_ID) |
| |
| #define BTRFS_FSID_SIZE 16 |
| #define BTRFS_UUID_SIZE 16 |
| #define BTRFS_UUID_UNPARSED_SIZE 37 |
| |
| /* |
| * flags definition for qgroup limits |
| * |
| * Used by: |
| * struct btrfs_qgroup_limit.flags |
| * struct btrfs_qgroup_limit_item.flags |
| */ |
| #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; |
| }; |
| |
| /* |
| * flags definition for qgroup inheritance |
| * |
| * Used by: |
| * struct btrfs_qgroup_inherit.flags |
| */ |
| #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[]; |
| }; |
| |
| struct btrfs_ioctl_qgroup_limit_args { |
| __u64 qgroupid; |
| struct btrfs_qgroup_limit lim; |
| }; |
| |
| /* |
| * Arguments for specification of subvolumes or devices, supporting by-name or |
| * by-id and flags |
| * |
| * The set of supported flags depends on the ioctl |
| * |
| * BTRFS_SUBVOL_RDONLY is also provided/consumed by the following ioctls: |
| * - BTRFS_IOC_SUBVOL_GETFLAGS |
| * - BTRFS_IOC_SUBVOL_SETFLAGS |
| */ |
| |
| /* Supported flags for BTRFS_IOC_RM_DEV_V2 */ |
| #define BTRFS_DEVICE_REMOVE_ARGS_MASK \ |
| (BTRFS_DEVICE_SPEC_BY_ID) |
| |
| /* Supported flags for BTRFS_IOC_SNAP_CREATE_V2 and BTRFS_IOC_SUBVOL_CREATE_V2 */ |
| #define BTRFS_SUBVOL_CREATE_ARGS_MASK \ |
| (BTRFS_SUBVOL_RDONLY | \ |
| BTRFS_SUBVOL_QGROUP_INHERIT) |
| |
| /* Supported flags for BTRFS_IOC_SNAP_DESTROY_V2 */ |
| #define BTRFS_SUBVOL_DELETE_ARGS_MASK \ |
| (BTRFS_SUBVOL_SPEC_BY_ID) |
| |
| 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; |
| __u64 subvolid; |
| }; |
| }; |
| |
| /* |
| * structure to report errors and progress to userspace, either as a |
| * result of a finished scrub, a canceled scrub or a progress inquiry |
| */ |
| struct btrfs_scrub_progress { |
| __u64 data_extents_scrubbed; /* # of data extents scrubbed */ |
| __u64 tree_extents_scrubbed; /* # of tree extents scrubbed */ |
| __u64 data_bytes_scrubbed; /* # of data bytes scrubbed */ |
| __u64 tree_bytes_scrubbed; /* # of tree bytes scrubbed */ |
| __u64 read_errors; /* # of read errors encountered (EIO) */ |
| __u64 csum_errors; /* # of failed csum checks */ |
| __u64 verify_errors; /* # of occurrences, where the metadata |
| * of a tree block did not match the |
| * expected values, like generation or |
| * logical */ |
| __u64 no_csum; /* # of 4k data block for which no csum |
| * is present, probably the result of |
| * data written with nodatasum */ |
| __u64 csum_discards; /* # of csum for which no data was found |
| * in the extent tree. */ |
| __u64 super_errors; /* # of bad super blocks encountered */ |
| __u64 malloc_errors; /* # of internal kmalloc errors. These |
| * will likely cause an incomplete |
| * scrub */ |
| __u64 uncorrectable_errors; /* # of errors where either no intact |
| * copy was found or the writeback |
| * failed */ |
| __u64 corrected_errors; /* # of errors corrected */ |
| __u64 last_physical; /* last physical address scrubbed. In |
| * case a scrub was aborted, this can |
| * be used to restart the scrub */ |
| __u64 unverified_errors; /* # of occurrences where a read for a |
| * full (64k) bio failed, but the re- |
| * check succeeded for each 4k piece. |
| * Intermittent error. */ |
| }; |
| |
| #define BTRFS_SCRUB_READONLY 1 |
| #define BTRFS_SCRUB_SUPPORTED_FLAGS (BTRFS_SCRUB_READONLY) |
| struct btrfs_ioctl_scrub_args { |
| __u64 devid; /* in */ |
| __u64 start; /* in */ |
| __u64 end; /* in */ |
| __u64 flags; /* in */ |
| struct btrfs_scrub_progress progress; /* out */ |
| /* pad to 1k */ |
| __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; /* in, if 0, use srcdev_name instead */ |
| __u64 cont_reading_from_srcdev_mode; /* in, see #define |
| * above */ |
| __u8 srcdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1]; /* in */ |
| __u8 tgtdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1]; /* in */ |
| }; |
| |
| #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; /* out, see #define above */ |
| __u64 progress_1000; /* out, 0 <= x <= 1000 */ |
| __u64 time_started; /* out, seconds since 1-Jan-1970 */ |
| __u64 time_stopped; /* out, seconds since 1-Jan-1970 */ |
| __u64 num_write_errors; /* out */ |
| __u64 num_uncorrectable_read_errors; /* out */ |
| }; |
| |
| #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; /* in */ |
| __u64 result; /* out */ |
| |
| union { |
| struct btrfs_ioctl_dev_replace_start_params start; |
| struct btrfs_ioctl_dev_replace_status_params status; |
| }; /* in/out */ |
| |
| __u64 spare[64]; |
| }; |
| |
| struct btrfs_ioctl_dev_info_args { |
| __u64 devid; /* in/out */ |
| __u8 uuid[BTRFS_UUID_SIZE]; /* in/out */ |
| __u64 bytes_used; /* out */ |
| __u64 total_bytes; /* out */ |
| __u64 unused[379]; /* pad to 4k */ |
| __u8 path[BTRFS_DEVICE_PATH_NAME_MAX]; /* out */ |
| }; |
| |
| /* |
| * Retrieve information about the filesystem |
| */ |
| |
| /* Request information about checksum type and size */ |
| #define BTRFS_FS_INFO_FLAG_CSUM_INFO (1 << 0) |
| |
| /* Request information about filesystem generation */ |
| #define BTRFS_FS_INFO_FLAG_GENERATION (1 << 1) |
| /* Request information about filesystem metadata UUID */ |
| #define BTRFS_FS_INFO_FLAG_METADATA_UUID (1 << 2) |
| |
| struct btrfs_ioctl_fs_info_args { |
| __u64 max_id; /* out */ |
| __u64 num_devices; /* out */ |
| __u8 fsid[BTRFS_FSID_SIZE]; /* out */ |
| __u32 nodesize; /* out */ |
| __u32 sectorsize; /* out */ |
| __u32 clone_alignment; /* out */ |
| /* See BTRFS_FS_INFO_FLAG_* */ |
| __u16 csum_type; /* out */ |
| __u16 csum_size; /* out */ |
| __u64 flags; /* in/out */ |
| __u64 generation; /* out */ |
| __u8 metadata_uuid[BTRFS_FSID_SIZE]; /* out */ |
| __u8 reserved[944]; /* pad to 1k */ |
| }; |
| |
| /* |
| * feature flags |
| * |
| * Used by: |
| * struct btrfs_ioctl_feature_flags |
| */ |
| #define BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE (1ULL << 0) |
| /* |
| * Older kernels (< 4.9) on big-endian systems produced broken free space tree |
| * bitmaps, and btrfs-progs also used to corrupt the free space tree (versions |
| * < 4.7.3). If this bit is clear, then the free space tree cannot be trusted. |
| * btrfs-progs can also intentionally clear this bit to ask the kernel to |
| * rebuild the free space tree, however this might not work on older kernels |
| * that do not know about this bit. If not sure, clear the cache manually on |
| * first mount when booting older kernel versions. |
| */ |
| #define BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE_VALID (1ULL << 1) |
| #define BTRFS_FEATURE_COMPAT_RO_VERITY (1ULL << 2) |
| |
| /* |
| * Put all block group items into a dedicated block group tree, greatly |
| * reducing mount time for large filesystem due to better locality. |
| */ |
| #define BTRFS_FEATURE_COMPAT_RO_BLOCK_GROUP_TREE (1ULL << 3) |
| |
| #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_ZSTD (1ULL << 4) |
| |
| /* |
| * older kernels tried to do bigger metadata blocks, but the |
| * code was pretty buggy. Lets not let them try anymore. |
| */ |
| #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) |
| #define BTRFS_FEATURE_INCOMPAT_METADATA_UUID (1ULL << 10) |
| #define BTRFS_FEATURE_INCOMPAT_RAID1C34 (1ULL << 11) |
| #define BTRFS_FEATURE_INCOMPAT_ZONED (1ULL << 12) |
| #define BTRFS_FEATURE_INCOMPAT_EXTENT_TREE_V2 (1ULL << 13) |
| |
| struct btrfs_ioctl_feature_flags { |
| __u64 compat_flags; |
| __u64 compat_ro_flags; |
| __u64 incompat_flags; |
| }; |
| |
| /* balance control ioctl modes */ |
| #define BTRFS_BALANCE_CTL_PAUSE 1 |
| #define BTRFS_BALANCE_CTL_CANCEL 2 |
| |
| /* |
| * this is packed, because it should be exactly the same as its disk |
| * byte order counterpart (struct btrfs_disk_balance_args) |
| */ |
| 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; |
| |
| /* |
| * BTRFS_BALANCE_ARGS_LIMIT with value 'limit' |
| * BTRFS_BALANCE_ARGS_LIMIT_RANGE - the extend version can use minimum |
| * and maximum |
| */ |
| union { |
| __u64 limit; /* limit number of processed chunks */ |
| struct { |
| __u32 limit_min; |
| __u32 limit_max; |
| }; |
| }; |
| |
| /* |
| * Process chunks that cross stripes_min..stripes_max devices, |
| * BTRFS_BALANCE_ARGS_STRIPES_RANGE |
| */ |
| __u32 stripes_min; |
| __u32 stripes_max; |
| |
| __u64 unused[6]; |
| } __attribute__ ((__packed__)); |
| |
| /* report balance progress to userspace */ |
| struct btrfs_balance_progress { |
| __u64 expected; /* estimated # of chunks that will be |
| * relocated to fulfill the request */ |
| __u64 considered; /* # of chunks we have considered so far */ |
| __u64 completed; /* # of chunks relocated so far */ |
| }; |
| |
| /* |
| * flags definition for balance |
| * |
| * Restriper's general type filter |
| * |
| * Used by: |
| * btrfs_ioctl_balance_args.flags |
| * btrfs_balance_control.flags (internal) |
| */ |
| #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) |
| |
| /* |
| * flags definitions for per-type balance args |
| * |
| * Balance filters |
| * |
| * Used by: |
| * struct btrfs_balance_args |
| */ |
| #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) |
| |
| /* |
| * Profile changing flags. When SOFT is set we won't relocate chunk if |
| * it already has the target profile (even though it may be |
| * half-filled). |
| */ |
| #define BTRFS_BALANCE_ARGS_CONVERT (1ULL << 8) |
| #define BTRFS_BALANCE_ARGS_SOFT (1ULL << 9) |
| |
| |
| /* |
| * flags definition for balance state |
| * |
| * Used by: |
| * struct btrfs_ioctl_balance_args.state |
| */ |
| #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; /* in/out */ |
| __u64 state; /* out */ |
| |
| struct btrfs_balance_args data; /* in/out */ |
| struct btrfs_balance_args meta; /* in/out */ |
| struct btrfs_balance_args sys; /* in/out */ |
| |
| struct btrfs_balance_progress stat; /* out */ |
| |
| __u64 unused[72]; /* pad to 1k */ |
| }; |
| |
| #define BTRFS_INO_LOOKUP_PATH_MAX 4080 |
| struct btrfs_ioctl_ino_lookup_args { |
| __u64 treeid; |
| __u64 objectid; |
| char name[BTRFS_INO_LOOKUP_PATH_MAX]; |
| }; |
| |
| #define BTRFS_INO_LOOKUP_USER_PATH_MAX (4080 - BTRFS_VOL_NAME_MAX - 1) |
| struct btrfs_ioctl_ino_lookup_user_args { |
| /* in, inode number containing the subvolume of 'subvolid' */ |
| __u64 dirid; |
| /* in */ |
| __u64 treeid; |
| /* out, name of the subvolume of 'treeid' */ |
| char name[BTRFS_VOL_NAME_MAX + 1]; |
| /* |
| * out, constructed path from the directory with which the ioctl is |
| * called to dirid |
| */ |
| char path[BTRFS_INO_LOOKUP_USER_PATH_MAX]; |
| }; |
| |
| /* Search criteria for the btrfs SEARCH ioctl family. */ |
| struct btrfs_ioctl_search_key { |
| /* |
| * The tree we're searching in. 1 is the tree of tree roots, 2 is the |
| * extent tree, etc... |
| * |
| * A special tree_id value of 0 will cause a search in the subvolume |
| * tree that the inode which is passed to the ioctl is part of. |
| */ |
| __u64 tree_id; /* in */ |
| |
| /* |
| * When doing a tree search, we're actually taking a slice from a |
| * linear search space of 136-bit keys. |
| * |
| * A full 136-bit tree key is composed as: |
| * (objectid << 72) + (type << 64) + offset |
| * |
| * The individual min and max values for objectid, type and offset |
| * define the min_key and max_key values for the search range. All |
| * metadata items with a key in the interval [min_key, max_key] will be |
| * returned. |
| * |
| * Additionally, we can filter the items returned on transaction id of |
| * the metadata block they're stored in by specifying a transid range. |
| * Be aware that this transaction id only denotes when the metadata |
| * page that currently contains the item got written the last time as |
| * result of a COW operation. The number does not have any meaning |
| * related to the transaction in which an individual item that is being |
| * returned was created or changed. |
| */ |
| __u64 min_objectid; /* in */ |
| __u64 max_objectid; /* in */ |
| __u64 min_offset; /* in */ |
| __u64 max_offset; /* in */ |
| __u64 min_transid; /* in */ |
| __u64 max_transid; /* in */ |
| __u32 min_type; /* in */ |
| __u32 max_type; /* in */ |
| |
| /* |
| * input: The maximum amount of results desired. |
| * output: The actual amount of items returned, restricted by any of: |
| * - reaching the upper bound of the search range |
| * - reaching the input nr_items amount of items |
| * - completely filling the supplied memory buffer |
| */ |
| __u32 nr_items; /* in/out */ |
| |
| /* align to 64 bits */ |
| __u32 unused; |
| |
| /* some extra for later */ |
| __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)) |
| /* |
| * the buf is an array of search headers where |
| * each header is followed by the actual item |
| * the type field is expanded to 32 bits for alignment |
| */ |
| 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; /* in/out - search parameters */ |
| __u64 buf_size; /* in - size of buffer |
| * out - on EOVERFLOW: needed size |
| * to store item */ |
| __u64 buf[]; /* out - found items */ |
| }; |
| |
| struct btrfs_ioctl_clone_range_args { |
| __s64 src_fd; |
| __u64 src_offset, src_length; |
| __u64 dest_offset; |
| }; |
| |
| /* |
| * flags definition for the defrag range ioctl |
| * |
| * Used by: |
| * struct btrfs_ioctl_defrag_range_args.flags |
| */ |
| #define BTRFS_DEFRAG_RANGE_COMPRESS 1 |
| #define BTRFS_DEFRAG_RANGE_START_IO 2 |
| #define BTRFS_DEFRAG_RANGE_FLAGS_SUPP (BTRFS_DEFRAG_RANGE_COMPRESS | \ |
| BTRFS_DEFRAG_RANGE_START_IO) |
| |
| struct btrfs_ioctl_defrag_range_args { |
| /* start of the defrag operation */ |
| __u64 start; |
| |
| /* number of bytes to defrag, use (u64)-1 to say all */ |
| __u64 len; |
| |
| /* |
| * flags for the operation, which can include turning |
| * on compression for this one defrag |
| */ |
| __u64 flags; |
| |
| /* |
| * any extent bigger than this will be considered |
| * already defragged. Use 0 to take the kernel default |
| * Use 1 to say every single extent must be rewritten |
| */ |
| __u32 extent_thresh; |
| |
| /* |
| * which compression method to use if turning on compression |
| * for this defrag operation. If unspecified, zlib will |
| * be used |
| */ |
| __u32 compress_type; |
| |
| /* spare for later */ |
| __u32 unused[4]; |
| }; |
| |
| |
| #define BTRFS_SAME_DATA_DIFFERS 1 |
| /* For extent-same ioctl */ |
| struct btrfs_ioctl_same_extent_info { |
| __s64 fd; /* in - destination file */ |
| __u64 logical_offset; /* in - start of extent in destination */ |
| __u64 bytes_deduped; /* out - total # of bytes we were able |
| * to dedupe from this file */ |
| /* status of this dedupe operation: |
| * 0 if dedup succeeds |
| * < 0 for error |
| * == BTRFS_SAME_DATA_DIFFERS if data differs |
| */ |
| __s32 status; /* out - see above description */ |
| __u32 reserved; |
| }; |
| |
| struct btrfs_ioctl_same_args { |
| __u64 logical_offset; /* in - start of extent in source */ |
| __u64 length; /* in - length of extent */ |
| __u16 dest_count; /* in - total elements in info array */ |
| __u16 reserved1; |
| __u32 reserved2; |
| struct btrfs_ioctl_same_extent_info info[]; |
| }; |
| |
| 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[]; |
| }; |
| |
| struct btrfs_data_container { |
| __u32 bytes_left; /* out -- bytes not needed to deliver output */ |
| __u32 bytes_missing; /* out -- additional bytes needed for result */ |
| __u32 elem_cnt; /* out */ |
| __u32 elem_missed; /* out */ |
| __u64 val[]; /* out */ |
| }; |
| |
| struct btrfs_ioctl_ino_path_args { |
| __u64 inum; /* in */ |
| __u64 size; /* in */ |
| __u64 reserved[4]; |
| /* struct btrfs_data_container *fspath; out */ |
| __u64 fspath; /* out */ |
| }; |
| |
| struct btrfs_ioctl_logical_ino_args { |
| __u64 logical; /* in */ |
| __u64 size; /* in */ |
| __u64 reserved[3]; /* must be 0 for now */ |
| __u64 flags; /* in, v2 only */ |
| /* struct btrfs_data_container *inodes; out */ |
| __u64 inodes; |
| }; |
| /* Return every ref to the extent, not just those containing logical block. |
| * Requires logical == extent bytenr. */ |
| #define BTRFS_LOGICAL_INO_ARGS_IGNORE_OFFSET (1ULL << 0) |
| |
| enum btrfs_dev_stat_values { |
| /* disk I/O failure stats */ |
| BTRFS_DEV_STAT_WRITE_ERRS, /* EIO or EREMOTEIO from lower layers */ |
| BTRFS_DEV_STAT_READ_ERRS, /* EIO or EREMOTEIO from lower layers */ |
| BTRFS_DEV_STAT_FLUSH_ERRS, /* EIO or EREMOTEIO from lower layers */ |
| |
| /* stats for indirect indications for I/O failures */ |
| BTRFS_DEV_STAT_CORRUPTION_ERRS, /* checksum error, bytenr error or |
| * contents is illegal: this is an |
| * indication that the block was damaged |
| * during read or write, or written to |
| * wrong location or read from wrong |
| * location */ |
| BTRFS_DEV_STAT_GENERATION_ERRS, /* an indication that blocks have not |
| * been written */ |
| |
| BTRFS_DEV_STAT_VALUES_MAX |
| }; |
| |
| /* Reset statistics after reading; needs SYS_ADMIN capability */ |
| #define BTRFS_DEV_STATS_RESET (1ULL << 0) |
| |
| struct btrfs_ioctl_get_dev_stats { |
| __u64 devid; /* in */ |
| __u64 nr_items; /* in/out */ |
| __u64 flags; /* in/out */ |
| |
| /* out values: */ |
| __u64 values[BTRFS_DEV_STAT_VALUES_MAX]; |
| |
| /* |
| * This pads the struct to 1032 bytes. It was originally meant to pad to |
| * 1024 bytes, but when adding the flags field, the padding calculation |
| * was not adjusted. |
| */ |
| __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]; /* in */ |
| __u64 stransid; /* in */ |
| __u64 rtransid; /* out */ |
| struct btrfs_ioctl_timespec stime; /* in */ |
| struct btrfs_ioctl_timespec rtime; /* out */ |
| __u64 flags; /* in */ |
| __u64 reserved[16]; /* in */ |
| }; |
| |
| /* |
| * Caller doesn't want file data in the send stream, even if the |
| * search of clone sources doesn't find an extent. UPDATE_EXTENT |
| * commands will be sent instead of WRITE commands. |
| */ |
| #define BTRFS_SEND_FLAG_NO_FILE_DATA 0x1 |
| |
| /* |
| * Do not add the leading stream header. Used when multiple snapshots |
| * are sent back to back. |
| */ |
| #define BTRFS_SEND_FLAG_OMIT_STREAM_HEADER 0x2 |
| |
| /* |
| * Omit the command at the end of the stream that indicated the end |
| * of the stream. This option is used when multiple snapshots are |
| * sent back to back. |
| */ |
| #define BTRFS_SEND_FLAG_OMIT_END_CMD 0x4 |
| |
| /* |
| * Read the protocol version in the structure |
| */ |
| #define BTRFS_SEND_FLAG_VERSION 0x8 |
| |
| /* |
| * Send compressed data using the ENCODED_WRITE command instead of decompressing |
| * the data and sending it with the WRITE command. This requires protocol |
| * version >= 2. |
| */ |
| #define BTRFS_SEND_FLAG_COMPRESSED 0x10 |
| |
| #define BTRFS_SEND_FLAG_MASK \ |
| (BTRFS_SEND_FLAG_NO_FILE_DATA | \ |
| BTRFS_SEND_FLAG_OMIT_STREAM_HEADER | \ |
| BTRFS_SEND_FLAG_OMIT_END_CMD | \ |
| BTRFS_SEND_FLAG_VERSION | \ |
| BTRFS_SEND_FLAG_COMPRESSED) |
| |
| struct btrfs_ioctl_send_args { |
| __s64 send_fd; /* in */ |
| __u64 clone_sources_count; /* in */ |
| __u64 __user *clone_sources; /* in */ |
| __u64 parent_root; /* in */ |
| __u64 flags; /* in */ |
| __u32 version; /* in */ |
| __u8 reserved[28]; /* in */ |
| }; |
| |
| /* |
| * Information about a fs tree root. |
| * |
| * All items are filled by the ioctl |
| */ |
| struct btrfs_ioctl_get_subvol_info_args { |
| /* Id of this subvolume */ |
| __u64 treeid; |
| |
| /* Name of this subvolume, used to get the real name at mount point */ |
| char name[BTRFS_VOL_NAME_MAX + 1]; |
| |
| /* |
| * Id of the subvolume which contains this subvolume. |
| * Zero for top-level subvolume or a deleted subvolume. |
| */ |
| __u64 parent_id; |
| |
| /* |
| * Inode number of the directory which contains this subvolume. |
| * Zero for top-level subvolume or a deleted subvolume |
| */ |
| __u64 dirid; |
| |
| /* Latest transaction id of this subvolume */ |
| __u64 generation; |
| |
| /* Flags of this subvolume */ |
| __u64 flags; |
| |
| /* UUID of this subvolume */ |
| __u8 uuid[BTRFS_UUID_SIZE]; |
| |
| /* |
| * UUID of the subvolume of which this subvolume is a snapshot. |
| * All zero for a non-snapshot subvolume. |
| */ |
| __u8 parent_uuid[BTRFS_UUID_SIZE]; |
| |
| /* |
| * UUID of the subvolume from which this subvolume was received. |
| * All zero for non-received subvolume. |
| */ |
| __u8 received_uuid[BTRFS_UUID_SIZE]; |
| |
| /* Transaction id indicating when change/create/send/receive happened */ |
| __u64 ctransid; |
| __u64 otransid; |
| __u64 stransid; |
| __u64 rtransid; |
| /* Time corresponding to c/o/s/rtransid */ |
| struct btrfs_ioctl_timespec ctime; |
| struct btrfs_ioctl_timespec otime; |
| struct btrfs_ioctl_timespec stime; |
| struct btrfs_ioctl_timespec rtime; |
| |
| /* Must be zero */ |
| __u64 reserved[8]; |
| }; |
| |
| #define BTRFS_MAX_ROOTREF_BUFFER_NUM 255 |
| struct btrfs_ioctl_get_subvol_rootref_args { |
| /* in/out, minimum id of rootref's treeid to be searched */ |
| __u64 min_treeid; |
| |
| /* out */ |
| struct { |
| __u64 treeid; |
| __u64 dirid; |
| } rootref[BTRFS_MAX_ROOTREF_BUFFER_NUM]; |
| |
| /* out, number of found items */ |
| __u8 num_items; |
| __u8 align[7]; |
| }; |
| |
| /* |
| * Data and metadata for an encoded read or write. |
| * |
| * Encoded I/O bypasses any encoding automatically done by the filesystem (e.g., |
| * compression). This can be used to read the compressed contents of a file or |
| * write pre-compressed data directly to a file. |
| * |
| * BTRFS_IOC_ENCODED_READ and BTRFS_IOC_ENCODED_WRITE are essentially |
| * preadv/pwritev with additional metadata about how the data is encoded and the |
| * size of the unencoded data. |
| * |
| * BTRFS_IOC_ENCODED_READ fills the given iovecs with the encoded data, fills |
| * the metadata fields, and returns the size of the encoded data. It reads one |
| * extent per call. It can also read data which is not encoded. |
| * |
| * BTRFS_IOC_ENCODED_WRITE uses the metadata fields, writes the encoded data |
| * from the iovecs, and returns the size of the encoded data. Note that the |
| * encoded data is not validated when it is written; if it is not valid (e.g., |
| * it cannot be decompressed), then a subsequent read may return an error. |
| * |
| * Since the filesystem page cache contains decoded data, encoded I/O bypasses |
| * the page cache. Encoded I/O requires CAP_SYS_ADMIN. |
| */ |
| struct btrfs_ioctl_encoded_io_args { |
| /* Input parameters for both reads and writes. */ |
| |
| /* |
| * iovecs containing encoded data. |
| * |
| * For reads, if the size of the encoded data is larger than the sum of |
| * iov[n].iov_len for 0 <= n < iovcnt, then the ioctl fails with |
| * ENOBUFS. |
| * |
| * For writes, the size of the encoded data is the sum of iov[n].iov_len |
| * for 0 <= n < iovcnt. This must be less than 128 KiB (this limit may |
| * increase in the future). This must also be less than or equal to |
| * unencoded_len. |
| */ |
| const struct iovec __user *iov; |
| /* Number of iovecs. */ |
| unsigned long iovcnt; |
| /* |
| * Offset in file. |
| * |
| * For writes, must be aligned to the sector size of the filesystem. |
| */ |
| __s64 offset; |
| /* Currently must be zero. */ |
| __u64 flags; |
| |
| /* |
| * For reads, the following members are output parameters that will |
| * contain the returned metadata for the encoded data. |
| * For writes, the following members must be set to the metadata for the |
| * encoded data. |
| */ |
| |
| /* |
| * Length of the data in the file. |
| * |
| * Must be less than or equal to unencoded_len - unencoded_offset. For |
| * writes, must be aligned to the sector size of the filesystem unless |
| * the data ends at or beyond the current end of the file. |
| */ |
| __u64 len; |
| /* |
| * Length of the unencoded (i.e., decrypted and decompressed) data. |
| * |
| * For writes, must be no more than 128 KiB (this limit may increase in |
| * the future). If the unencoded data is actually longer than |
| * unencoded_len, then it is truncated; if it is shorter, then it is |
| * extended with zeroes. |
| */ |
| __u64 unencoded_len; |
| /* |
| * Offset from the first byte of the unencoded data to the first byte of |
| * logical data in the file. |
| * |
| * Must be less than unencoded_len. |
| */ |
| __u64 unencoded_offset; |
| /* |
| * BTRFS_ENCODED_IO_COMPRESSION_* type. |
| * |
| * For writes, must not be BTRFS_ENCODED_IO_COMPRESSION_NONE. |
| */ |
| __u32 compression; |
| /* Currently always BTRFS_ENCODED_IO_ENCRYPTION_NONE. */ |
| __u32 encryption; |
| /* |
| * Reserved for future expansion. |
| * |
| * For reads, always returned as zero. Users should check for non-zero |
| * bytes. If there are any, then the kernel has a newer version of this |
| * structure with additional information that the user definition is |
| * missing. |
| * |
| * For writes, must be zeroed. |
| */ |
| __u8 reserved[64]; |
| }; |
| |
| /* Data is not compressed. */ |
| #define BTRFS_ENCODED_IO_COMPRESSION_NONE 0 |
| /* Data is compressed as a single zlib stream. */ |
| #define BTRFS_ENCODED_IO_COMPRESSION_ZLIB 1 |
| /* |
| * Data is compressed as a single zstd frame with the windowLog compression |
| * parameter set to no more than 17. |
| */ |
| #define BTRFS_ENCODED_IO_COMPRESSION_ZSTD 2 |
| /* |
| * Data is compressed sector by sector (using the sector size indicated by the |
| * name of the constant) with LZO1X and wrapped in the format documented in |
| * fs/btrfs/lzo.c. For writes, the compression sector size must match the |
| * filesystem sector size. |
| */ |
| #define BTRFS_ENCODED_IO_COMPRESSION_LZO_4K 3 |
| #define BTRFS_ENCODED_IO_COMPRESSION_LZO_8K 4 |
| #define BTRFS_ENCODED_IO_COMPRESSION_LZO_16K 5 |
| #define BTRFS_ENCODED_IO_COMPRESSION_LZO_32K 6 |
| #define BTRFS_ENCODED_IO_COMPRESSION_LZO_64K 7 |
| #define BTRFS_ENCODED_IO_COMPRESSION_TYPES 8 |
| |
| /* Data is not encrypted. */ |
| #define BTRFS_ENCODED_IO_ENCRYPTION_NONE 0 |
| #define BTRFS_ENCODED_IO_ENCRYPTION_TYPES 1 |
| |
| /* Error codes as returned by the kernel */ |
| 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, |
| BTRFS_ERROR_DEV_RAID1C3_MIN_NOT_MET, |
| BTRFS_ERROR_DEV_RAID1C4_MIN_NOT_MET, |
| }; |
| |
| #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_FORGET_DEV _IOW(BTRFS_IOCTL_MAGIC, 5, \ |
| struct btrfs_ioctl_vol_args) |
| /* trans start and trans end are dangerous, and only for |
| * use by applications that know how to avoid the |
| * resulting deadlocks |
| */ |
| #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 FS_IOC_GETFSLABEL |
| #define BTRFS_IOC_SET_FSLABEL FS_IOC_SETFSLABEL |
| #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) |
| #define BTRFS_IOC_LOGICAL_INO_V2 _IOWR(BTRFS_IOCTL_MAGIC, 59, \ |
| struct btrfs_ioctl_logical_ino_args) |
| #define BTRFS_IOC_GET_SUBVOL_INFO _IOR(BTRFS_IOCTL_MAGIC, 60, \ |
| struct btrfs_ioctl_get_subvol_info_args) |
| #define BTRFS_IOC_GET_SUBVOL_ROOTREF _IOWR(BTRFS_IOCTL_MAGIC, 61, \ |
| struct btrfs_ioctl_get_subvol_rootref_args) |
| #define BTRFS_IOC_INO_LOOKUP_USER _IOWR(BTRFS_IOCTL_MAGIC, 62, \ |
| struct btrfs_ioctl_ino_lookup_user_args) |
| #define BTRFS_IOC_SNAP_DESTROY_V2 _IOW(BTRFS_IOCTL_MAGIC, 63, \ |
| struct btrfs_ioctl_vol_args_v2) |
| #define BTRFS_IOC_ENCODED_READ _IOR(BTRFS_IOCTL_MAGIC, 64, \ |
| struct btrfs_ioctl_encoded_io_args) |
| #define BTRFS_IOC_ENCODED_WRITE _IOW(BTRFS_IOCTL_MAGIC, 64, \ |
| struct btrfs_ioctl_encoded_io_args) |
| |
| #endif /* _UAPI_LINUX_BTRFS_H */ |