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Christoph Hellwig authored
XFS already implement it's own flushing of the pagecache because it implements proper synchronization for direct I/O reads. This means calling generic_file_read_iter for direct I/O is rather useless, as it doesn't do much but updating the atime and iocb position for us. This also gets rid of the buffered I/O fallback that isn't used for XFS. Signed-off-by:
Christoph Hellwig <hch@lst.de> Reviewed-by:
Dave Chinner <dchinner@redhat.com> Signed-off-by:
Dave Chinner <david@fromorbit.com>
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