On Wed, Oct 26, 2022 at 06:19:38PM -0500, Mike Christie wrote: > To handle both cases and keep userspace compatibility, this patch adds a > blk_status_t arg to the pr_ops callouts. The lower levels will convert > their device specific error to the blk_status_t then the upper levels > can easily check that code without knowing the device type. Adding the > extra return value will then allow us to not break userspace which expects > a negative -Exyz error code if the command fails before it's sent to the > device or a device/driver specific value if the error is > 0. I really hate this double error return. What -E* statuses that matter can be returned without a BLK_STS_* equivalent that we couldn't convert to and from?
