On Tue, Aug 25, 2015 at 11:33:40PM +0800, Peng Tao wrote:
> --- a/include/uapi/linux/btrfs.h
> +++ b/include/uapi/linux/btrfs.h
> @@ -316,12 +316,6 @@ struct btrfs_ioctl_search_args_v2 {
> __u64 buf[0]; /* out - found items */
> };
>
> -struct btrfs_ioctl_clone_range_args {
> - __s64 src_fd;
> - __u64 src_offset, src_length;
> - __u64 dest_offset;
> -};
For backward compatibility and not-breaking-builds reasons, do not
remove anything from this file.
> -
> /* flags for the defrag range ioctl */
> #define BTRFS_DEFRAG_RANGE_COMPRESS 1
> #define BTRFS_DEFRAG_RANGE_START_IO 2
> @@ -548,7 +542,6 @@ static inline char *btrfs_err_str(enum btrfs_err_code err_code)
> #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)
The ioctl definition reuses the BTRFS_IOCTL_MAGIC (0x94), which is IMHO
wrong.
I'll comment more once the whole series is posted to fsdevel.
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