On Fri, Oct 26, 2018 at 01:28:54AM +0200, Paolo Bonzini wrote: > On 15/10/2018 11:27, Christoph Hellwig wrote: > > There is some issues in this spec. For one using the multiple ranges > > also for write zeroes is rather inefficient. Write zeroes really should > > use the same format as read and write. > > What makes it inefficient? We require a memory allocation for each write zeroes instead of encoding the lba/len in the command.
