On Thu, Jun 14, 2018 at 10:01:38AM +0800, Ming Lei wrote: > Bounce limits the max pages as 256 will do bio splitting, so won't need > this change. Behavior for the bounce code does not change with my patch. The important points are: - the default interface (bio_clone_bioset in this case) should always operate on full biosets - if the bounce code needs bioves limited to single pages it should be treated as the special case - given that the bounce code is inside the block layer using the __-prefixed internal interface is perfectly fine - last but not least I think the parameter switching the behavior needs a much more descriptive name as suggested in my patch