Re: [PATCH v5 8/9] vfs: Add vfs_copy_file_range() support for pagecache copies

On Wed, Oct 14, 2015 at 11:53:45AM -0700, Andy Lutomirski wrote:

Would copy_file_range without the reflink option removed still be
permitted to link blocks on supported filesystems (btrfs and maybe
XFS)?

Absolutely.  Unless the COPY_FALLOCATE or whatever we call it option is
specified of course.  But I'd really love to get basic copy
infrastructure in for 4.4 and then define these options later.
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