Re: [PATCH v3 08/16] block: Rework bio splitting

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On Fri, 25 May 2012, Kent Overstreet wrote:

> diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
> index f8b6f14..0062326 100644
> --- a/drivers/md/raid10.c
> +++ b/drivers/md/raid10.c
> @@ -1001,15 +1001,9 @@ static void make_request(struct mddev *mddev, struct bio * bio)
>  		      > chunk_sects &&
>  		    conf->near_copies < conf->raid_disks)) {
>  		struct bio_pair *bp;
> -		/* Sanity check -- queue functions should prevent this happening */
> -		if (bio->bi_vcnt != 1 ||
> -		    bio->bi_idx != 0)
> -			goto bad_map;
> -		/* This is a one page bio that upper layers
> -		 * refuse to split for us, so we need to split it.
> -		 */
> +

That "Sanity check" should be removed from drivers/md/raid0.c too. Your 
patch only removes it from raid10.

Mikulas

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