diff options
Diffstat (limited to 'include/uapi/linux/fs.h')
| -rw-r--r-- | include/uapi/linux/fs.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h index f15d980249b5..b38e647664a0 100644 --- a/include/uapi/linux/fs.h +++ b/include/uapi/linux/fs.h @@ -39,12 +39,48 @@ #define RENAME_EXCHANGE (1 << 1) /* Exchange source and dest */ #define RENAME_WHITEOUT (1 << 2) /* Whiteout source */ +struct file_clone_range { + __s64 src_fd; + __u64 src_offset; + __u64 src_length; + __u64 dest_offset; +}; + struct fstrim_range { __u64 start; __u64 len; __u64 minlen; }; +/* extent-same (dedupe) ioctls; these MUST match the btrfs ioctl definitions */ +#define FILE_DEDUPE_RANGE_SAME 0 +#define FILE_DEDUPE_RANGE_DIFFERS 1 + +/* from struct btrfs_ioctl_file_extent_same_info */ +struct file_dedupe_range_info { + __s64 dest_fd; /* in - destination file */ + __u64 dest_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 for error + * == FILE_DEDUPE_RANGE_SAME if dedupe succeeds + * == FILE_DEDUPE_RANGE_DIFFERS if data differs + */ + __s32 status; /* out - see above description */ + __u32 reserved; /* must be zero */ +}; + +/* from struct btrfs_ioctl_file_extent_same_args */ +struct file_dedupe_range { + __u64 src_offset; /* in - start of extent in source */ + __u64 src_length; /* in - length of extent */ + __u16 dest_count; /* in - total elements in info array */ + __u16 reserved1; /* must be zero */ + __u32 reserved2; /* must be zero */ + struct file_dedupe_range_info info[0]; +}; + /* And dynamically-tunable limits and defaults: */ struct files_stat_struct { unsigned long nr_files; /* read only */ @@ -159,6 +195,9 @@ struct inodes_stat_t { #define FIFREEZE _IOWR('X', 119, int) /* Freeze */ #define FITHAW _IOWR('X', 120, int) /* Thaw */ #define FITRIM _IOWR('X', 121, struct fstrim_range) /* Trim */ +#define FICLONE _IOW(0x94, 9, int) +#define FICLONERANGE _IOW(0x94, 13, struct file_clone_range) +#define FIDEDUPERANGE _IOWR(0x94, 54, struct file_dedupe_range) #define FS_IOC_GETFLAGS _IOR('f', 1, long) #define FS_IOC_SETFLAGS _IOW('f', 2, long) |