[PATCHv10 1/9] block: use generic u16 for write hints

[Bart Van Assche]

On 10/29/24 8:19 AM, Keith Busch wrote:
> This is still backwards compatible with lifetime hints. It just doesn't
> constrain the hints to that definition. Using this type doesn't change
> the size of either bio or request.

Reviewed-by: Bart Van Assche <bvanassche at acm.org>