Re: [PATCH] block: make sure big bio is splitted into at most 256 bvecs

[Kent Overstreet]

On Wed, Apr 06, 2016 at 10:30:22AM +0800, Ming Lei wrote:
> Now limit.max_segments is for limiting segments from hw view, one this
> segment may include lots of pages/bvecs.
> 
> The current bio_clone() issue is that we can't clone from one bio which
> includes more than 256 bvecs, maybe all these 256 bvecs belong to
> one same hw segment.

So the distinction is purely a post multipage bvec thing?