[dm-devel] [PATCH 22/26] block: Make generic_make_request handle arbitrary sized bios

[David Sterba]

On Sat, Jun 08, 2013 at 07:19:04PM -0700, Kent Overstreet wrote:
> --- a/include/linux/blkdev.h
> +++ b/include/linux/blkdev.h
> @@ -467,6 +468,7 @@ struct request_queue {
>  #define QUEUE_FLAG_SECDISCARD  17	/* supports SECDISCARD */
>  #define QUEUE_FLAG_SAME_FORCE  18	/* force complete on same CPU */
>  #define QUEUE_FLAG_DEAD        19	/* queue tear-down finished */
> +#define QUEUE_FLAG_LARGEBIOS   19	/* no limits on bio size */
                                  ^^
				  20 ?

david