On Mon, Jul 21, 2025 at 07:15:41AM -0600, Keith Busch wrote: > > This should probably just set up the linear metadata pointer instead > > of a single-segment SGL. > > Okay, but we should still use SGL with user passthrough commands for > memory safety. Even if we have an iommu protecting access, there's still > a possibility of corrupting adjacent iova's if using MPTR. True. > In this patch, the nr_meta_descriptors value matches the sg_list length. > The only real reason I need this 'nr_' value is to distinguish the > single data descriptor condition from the segment descriptor use, but I > can just add an iod flag for that too and save some space. Yes, that would be great.
