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8b8755e008
In preparation to supporting dma-buf backed iterators and bios, introduce bio_iov_iter_set() which attempts to set up the bio directly from the given iterator. For now, it only supports bvec and expects users to check the result and fall back to other means if fails, but later we'll add more types. Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://patch.msgid.link/4686a0e47fc14f3f888967a80d45a6f66044f1e0.1785596451.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>