# Re: \[PATCH v2 05/26\] block: Add bio\_end()

- From: Tejun Heo \<hidden\>
- Date: 2012-09-20 23:32:31 
- List: linux-bcache
- Page: https://ratatoskr.run/linux-bcache/2012/09/3926546
- Thread: https://ratatoskr.run/linux-bcache/2012/09/3920950/t.md

```text
On Mon, Sep 10, 2012 at 05:22:16PM -0700, Kent Overstreet wrote:
> Just a little convenience macro - main reason to add it now is preparing
> for immutable bio vecs, it'll reduce the size of the patch that puts
> bi_sector/bi_size/bi_idx into a struct bvec_iter.
> 
> Signed-off-by: Kent Overstreet <redacted>
> CC: Jens Axboe <redacted>
> diff --git a/include/linux/bio.h b/include/linux/bio.h
> index 6763cdf..92bff0e 100644
> --- a/include/linux/bio.h
> +++ b/include/linux/bio.h
> @@ -67,6 +67,7 @@
>  #define bio_offset(bio)		bio_iovec((bio))->bv_offset
>  #define bio_segments(bio)	((bio)->bi_vcnt - (bio)->bi_idx)
>  #define bio_sectors(bio)	((bio)->bi_size >> 9)
> +#define bio_end(bio)		((bio)->bi_sector + bio_sectors(bio))

Maybe bio_end_sector() is a better name?  bio_end() looks a bit too
close to bio_endio().

Thanks.

-- 
tejun
```