[Drbd-dev] [PATCH v1 2/8] block: make 'struct bvec_iter' not depend on CONFIG_BLOCK

[Christoph Hellwig]

On Thu, Mar 31, 2016 at 12:17:11AM +0800, Ming Lei wrote:
> We will use bvec iterator to implement iterate_bvec(): lib/iov_iter.c.
> 
> Reviewed-by: Christoph Hellwig <hch at lst.de>
> Signed-off-by: Ming Lei <ming.lei at canonical.com>
> ---
>  include/linux/blk_types.h | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
> index 86a38ea..fd8527b 100644
> --- a/include/linux/blk_types.h
> +++ b/include/linux/blk_types.h
> @@ -26,8 +26,6 @@ struct bio_vec {
>  	unsigned int	bv_offset;
>  };
>  
> -#ifdef CONFIG_BLOCK
> -
>  struct bvec_iter {
>  	sector_t		bi_sector;	/* device address in 512 byte
>  						   sectors */
> @@ -39,6 +37,8 @@ struct bvec_iter {
>  						   current bvec */
>  };

I didn't catch this earlier, but shouldn't this also move to
bvec_iter.h? Or maybe just create a linux/bvec.h for the bvec, bvec_iter
and bvec iter macros given that those are the types used outside the
block layer as well.