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Date: Thu, 29 Sep 2016 10:03:02 -0700
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH 41/63] xfs: add clone file and clone range vfs functions
Message-ID: <20160929170302.GG4546@infradead.org>
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To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: david@fromorbit.com, linux-xfs@vger.kernel.org

> +/* reflink ioctls; these MUST match the btrfs ioctl definitions */
> +/* from struct btrfs_ioctl_clone_range_args */
> +struct xfs_clone_args {
> +	__s64 src_fd;
> +	__u64 src_offset;
> +	__u64 src_length;
> +	__u64 dest_offset;
> +};
> +
> +#define XFS_IOC_CLONE		 _IOW (0x94, 9, int)
> +#define XFS_IOC_CLONE_RANGE	 _IOW (0x94, 13, struct xfs_clone_args)

No need to add these since they are unused in favour of the VFS
definitions.