Re: [PATCH v5 2/8] block: move two bvec structure into bvec.h

Looks fine, Reviewed-by: Christoph Hellwig

[PATCH v5 2/8] block: move two bvec structure into bvec.h

This patch moves 'struct bio_vec' and 'struct bvec_iter' into 'include/linux/bvec.h', then always include this header into 'include/linux/blk_types.h'. With this change, both 'struct bvec_iter' and bvec iterator helpers don't depend on CONFIG_BLOCK any more, then we can use bvec iterator to implem