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Re: [dm-devel] [PATCH v3 06/26] block: Add bio_end_sector()



On Tue, Sep 25, 2012 at 03:06:24PM -0700, Kent Overstreet wrote:
> On Tue, Sep 25, 2012 at 01:54:52PM +0200, Lars Ellenberg wrote:
> > On Mon, Sep 24, 2012 at 03:34:46PM -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.
> > 
> > 
> > For the DRBD part:

> Version below look good?
> 
> diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
> index 01b2ac6..47f55db 100644
> --- a/drivers/block/drbd/drbd_req.c
> +++ b/drivers/block/drbd/drbd_req.c
> @@ -1144,7 +1144,7 @@ void drbd_make_request(struct request_queue *q, struct bio *bio)
>  	/* to make some things easier, force alignment of requests within the
>  	 * granularity of our hash tables */
>  	s_enr = bio->bi_sector >> HT_SHIFT;
> -	e_enr = bio->bi_size ? (bio->bi_sector+(bio->bi_size>>9)-1) >> HT_SHIFT : s_enr;
> +	e_enr = bio->bi_size ? (bio_end_sector(bio) - 1) >> HT_SHIFT : s_enr;
>  
>  	if (likely(s_enr == e_enr)) {
>  		do {

Sure.

Cheers,

	Lars


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