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Shaohua Li authored
commit c18a1e09 (block: introduce bio_clone_bioset_partial()) introduced bio_clone_bioset_partial() for raid1 write behind IO. Now the write behind is rewritten by Ming. We don't need the API any more, so revert the commit. Cc: Christoph Hellwig <hch@lst.de> Reviewed-by: Jens Axboe <axboe@fb.com> Reviewed-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Shaohua Li <shli@fb.com>
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