Darrick J. Wong 46afb0628b xfs: only flush the unshared range in xfs_reflink_unshare ...

There's no reason to flush an entire file when we're unsharing part of
a file.  Therefore, only initiate writeback on the selected range.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>

2020-11-04 17:41:56 -08:00

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