Ensure that we can create a file with a single extent, reflink two
blocks out of the middle of that extent, and the resulting fiemap
reports two shared extents, instead of lazily reporting the entire
huge extent as shared.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
Darrick J. Wong