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Date: Mon, 5 Sep 2016 07:56:22 -0700
From: Christoph Hellwig <hch@infradead.org>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
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Subject: Re: [PATCH 3/6] vfs: support FS_XFLAG_REFLINK and FS_XFLAG_COWEXTSIZE
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On Thu, Aug 25, 2016 at 04:31:00PM -0700, Darrick J. Wong wrote:
> Introduce XFLAGs for the new XFS reflink inode flag and the CoW extent
> size hint, and actually plumb the CoW extent size hint into the fsxattr
> structure.

Just curious, but why would we even bother to expose the reflink flag
to userspace?