diff options
Diffstat (limited to 'include/uapi/linux/btrfs.h')
| -rw-r--r-- | include/uapi/linux/btrfs.h | 63 |
1 files changed, 60 insertions, 3 deletions
diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h index d3b222d7af24..9b576603b3f1 100644 --- a/include/uapi/linux/btrfs.h +++ b/include/uapi/linux/btrfs.h @@ -336,6 +336,7 @@ struct btrfs_ioctl_fs_info_args { #define BTRFS_FEATURE_INCOMPAT_EXTENT_TREE_V2 (1ULL << 13) #define BTRFS_FEATURE_INCOMPAT_RAID_STRIPE_TREE (1ULL << 14) #define BTRFS_FEATURE_INCOMPAT_SIMPLE_QUOTA (1ULL << 16) +#define BTRFS_FEATURE_INCOMPAT_REMAP_TREE (1ULL << 17) struct btrfs_ioctl_feature_flags { __u64 compat_flags; @@ -615,7 +616,12 @@ struct btrfs_ioctl_clone_range_args { */ #define BTRFS_DEFRAG_RANGE_COMPRESS 1 #define BTRFS_DEFRAG_RANGE_START_IO 2 +#define BTRFS_DEFRAG_RANGE_COMPRESS_LEVEL 4 +/* Request no compression on the range (uncompress if necessary). */ +#define BTRFS_DEFRAG_RANGE_NOCOMPRESS 8 #define BTRFS_DEFRAG_RANGE_FLAGS_SUPP (BTRFS_DEFRAG_RANGE_COMPRESS | \ + BTRFS_DEFRAG_RANGE_COMPRESS_LEVEL | \ + BTRFS_DEFRAG_RANGE_NOCOMPRESS | \ BTRFS_DEFRAG_RANGE_START_IO) struct btrfs_ioctl_defrag_range_args { @@ -640,10 +646,18 @@ struct btrfs_ioctl_defrag_range_args { /* * which compression method to use if turning on compression - * for this defrag operation. If unspecified, zlib will - * be used + * for this defrag operation. If unspecified, zlib will be + * used. If compression level is also being specified, set the + * BTRFS_DEFRAG_RANGE_COMPRESS_LEVEL flag and fill the compress + * member structure instead of the compress_type field. */ - __u32 compress_type; + union { + __u32 compress_type; + struct { + __u8 type; + __s8 level; + } compress; + }; /* spare for later */ __u32 unused[4]; @@ -1086,6 +1100,44 @@ enum btrfs_err_code { BTRFS_ERROR_DEV_RAID1C4_MIN_NOT_MET, }; +/* Flags for struct btrfs_ioctl_get_csums_entry::type. */ +#define BTRFS_GET_CSUMS_HAS_CSUMS (1U << 0) +#define BTRFS_GET_CSUMS_ZEROED (1U << 1) +#define BTRFS_GET_CSUMS_NODATASUM (1U << 2) +#define BTRFS_GET_CSUMS_COMPRESSED (1U << 3) +#define BTRFS_GET_CSUMS_ENCRYPTED (1U << 4) +#define BTRFS_GET_CSUMS_INLINE (1U << 5) + +struct btrfs_ioctl_get_csums_entry { + /* File offset of this range. */ + __u64 offset; + /* Length in bytes. */ + __u64 length; + /* One of BTRFS_GET_CSUMS_* types. */ + __u32 type; + /* Padding, must be 0. */ + __u32 reserved; +}; + +struct btrfs_ioctl_get_csums_args { + /* In/out: file offset in bytes. */ + __u64 offset; + /* In/out: range length in bytes. */ + __u64 length; + /* In/out: buffer capacity / bytes written. */ + __u64 buf_size; + /* In: flags, must be 0 for now. */ + __u64 flags; + /* Out: entries of type btrfs_ioctl_get_csums_entry + csum data */ + __u8 buf[]; +}; + +/* Flags for IOC_SHUTDOWN, must match XFS_FSOP_GOING_FLAGS_* flags. */ +#define BTRFS_SHUTDOWN_FLAGS_DEFAULT 0x0 +#define BTRFS_SHUTDOWN_FLAGS_LOGFLUSH 0x1 +#define BTRFS_SHUTDOWN_FLAGS_NOLOGFLUSH 0x2 +#define BTRFS_SHUTDOWN_FLAGS_LAST 0x3 + #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \ struct btrfs_ioctl_vol_args) #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \ @@ -1206,6 +1258,11 @@ enum btrfs_err_code { struct btrfs_ioctl_encoded_io_args) #define BTRFS_IOC_SUBVOL_SYNC_WAIT _IOW(BTRFS_IOCTL_MAGIC, 65, \ struct btrfs_ioctl_subvol_wait) +#define BTRFS_IOC_GET_CSUMS _IOWR(BTRFS_IOCTL_MAGIC, 66, \ + struct btrfs_ioctl_get_csums_args) + +/* Shutdown ioctl should follow XFS's interfaces, thus not using btrfs magic. */ +#define BTRFS_IOC_SHUTDOWN _IOR('X', 125, __u32) #ifdef __cplusplus } |