On Mon, May 11, 2015 at 01:58:51PM +0200, Matias Bj?rling wrote: > >Can you explain why this needs to be done on a per-bio instead of a > >per-request level? I don't really think a low-level driver should add > >fields to struct bio as that can be easily remapped. > > When a bio is submitted through the block layer, it can be merged/splitted > on going through the block layer. Thus, we don't know the number of physical > addresses that must be mapped before its on the other side. For any sort of passthrough bios that should not be the case. It's not for BLOCK_PC, it's not for my new pass through NVMe commands and I don't think it should be in this case. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
